CN110736144A - double-air-duct air conditioner and dehumidification method and system thereof - Google Patents
double-air-duct air conditioner and dehumidification method and system thereof Download PDFInfo
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- CN110736144A CN110736144A CN201910967609.9A CN201910967609A CN110736144A CN 110736144 A CN110736144 A CN 110736144A CN 201910967609 A CN201910967609 A CN 201910967609A CN 110736144 A CN110736144 A CN 110736144A
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- 238000007791 dehumidification Methods 0.000 title claims abstract description 183
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000005057 refrigeration Methods 0.000 claims abstract description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 41
- 230000009977 dual effect Effects 0.000 claims description 13
- 238000000926 separation method Methods 0.000 claims description 2
- 230000001276 controlling effect Effects 0.000 claims 23
- 230000002596 correlated effect Effects 0.000 claims 1
- 230000008859 change Effects 0.000 description 12
- 238000010586 diagram Methods 0.000 description 5
- 238000004378 air conditioning Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000007710 freezing Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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- 230000001360 synchronised effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/86—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling compressors within refrigeration or heat pump circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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- Mathematical Physics (AREA)
- Human Computer Interaction (AREA)
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- Fluid Mechanics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention relates to the field of refrigeration equipment, and discloses double-air-channel air conditioners and a dehumidification method and a dehumidification system thereof.
Description
Technical Field
The invention relates to the field of refrigeration equipment, in particular to double-air-channel air conditioners and a dehumidification method and system thereof.
Background
The load of the air conditioner during the refrigeration process refers to sensible heat Wsensible heat Wlatent heat required for reducing the current temperature and humidity to certain set temperature and humidity.
Fig. 1 shows a typical house type of a fixed area in a high-humidity city, typically , where the temperature is 27 c and the relative humidity is 50%, and the load point (sensible heat + latent heat) distribution of the room is shown as a circle black point during 1/5-9/30/9/annually, the abscissa is the sensible heat load of the room and the ordinate is the latent heat load of the room.
The coverage area of the irregular graph in fig. 1 is a certain 1.5-piece variable frequency air conditioner matched with a typical room type area, the output capacity (sensible heat plus latent heat) of the air conditioner is set at a fixed outdoor temperature and humidity, the wind speed gear is respectively set with strong wind, high wind, medium wind and low wind, when the compressor frequency is from low to high, the output abscissa sensible heat and the ordinate latent heat of the air conditioner are two-dimensional coordinate graphs, so that the overlapping part is small, the overlapping part is caused by the fact that the 1.5-piece frequency is set, the output capacity is , under the existing 4-grade wind speed condition, the sensible heat component is obviously large, the latent heat component is obviously small, the overlapping part is caused by the sensible heat and latent heat of the room, the area of a load point of the sensible heat and the latent heat of the room is less than the area surrounded by the output sensible heat and latent heat of the air conditioner, the overlapping part shows that the refrigerating output capacity of the air conditioner can control the temperature and the humidity of the room to the comfortable temperature and humidity set by the user, the humidity of the room, the non-overlapping part shows that the refrigerating output capacity of the air conditioner is controlled to be lower than the sensible heat and the humidity of the humidity when the humidity of the room is lower than the humidity when the humidity of the humidity when the humidity of the room is set by the humidity of the room, the humidity of the room, the humidity of the room, the humidity is set by the humidity of the room, the humidity of the room, the humidity is 1400, the room, the humidity of the humidity, the humidity of the room, the humidity of the room, the humidity of the humidity, the room, the.
Fig. 2 is a distribution diagram of load points (sensible heat amount + latent heat amount) dividing an output load of an air conditioner into four areas according to conditions such as outdoor environment temperature, indoor relative humidity, set temperature and the like when the air conditioner is cooled or dehumidified, wherein an area indicated by a reference mark a in fig. 2 is a middle and high sensible heat load area, and the air conditioner mainly cools down and secondarily dehumidifies; the area marked by the mark B in FIG. 2 is a low sensible heat and low latent heat load area, and the cooling and dehumidifying requirements of the air conditioner are low; the area indicated by the reference number C in fig. 2 is a low sensible heat and high latent heat load area, the gear of the indoor fan is extended downward for several gears (rotating speed is reduced), the latent heat component of the air conditioner is increased, and the sensible heat component is reduced, although full coverage cannot be realized, the coverage area is obviously increased compared with the original wind speed gear; the area designated by the reference numeral D in fig. 2 is an ultra-low sensible heat and high latent heat load area, and is also an area which cannot be covered by the existing air conditioning product.
The reason why the ultra-low sensible heat load and the ultra-high latent heat load occur and the sensible heat output and the latent heat output of the air conditioner cannot meet the dehumidification requirement is that when the air conditioner compressor operates at a low frequency, the area of the evaporator is too large, the temperature is close to the dew point temperature or even higher than the dew point temperature, the latent heat capacity of the air conditioner is almost 0, and the dehumidification capacity is lost.
In order to meet the requirement that the room load of the area is fully covered by latent heat and sensible heat during refrigeration of the air conditioner, the optimal scheme is a scheme of not cooling and dehumidifying, the room temperature and the room humidity can be controlled to the comfortable temperature and humidity of a user, but the whole machine cost is greatly increased and the energy efficiency is reduced due to the fact that the air conditioner is not cooled and dehumidified, and air conditioner products which are not cooled and dehumidified are fresh in the market actually.
Therefore, how to improve the dehumidification capability of the low-temperature and high-humidity areas in the air conditioner in plum rain seasons without increasing extra or small cost becomes an industrial problem.
Disclosure of Invention
The invention aims to solve technical problems in the prior art at least at the fixed distance of , and therefore, the invention aims to provide double-air-channel air conditioner, a dehumidification method and a dehumidification system thereof, which can reduce sensible heat output of the air conditioner, improve latent heat output and realize constant temperature dehumidification.
In order to achieve the purpose, the invention adopts the following technical scheme:
the embodiment of the aspect of the invention provides a dehumidification method of double-air-channel air conditioners, which is characterized in that an indoor unit of the double-air-channel air conditioner comprises an upper air channel and a lower air channel, wherein an upper fan and an upper evaporator are arranged on the upper air channel, and a lower fan and a lower evaporator are arranged on the lower air channel, and the dehumidification method of the double-air-channel air conditioner comprises the following steps:
after the double-air-duct air conditioner receives a dehumidification instruction or operates in a refrigeration mode, acquiring a target temperature Ts and a target relative humidity phi set by a user, and acquiring an indoor environment temperature Tin, an outdoor environment temperature Tout and an indoor relative humidity phi in real time;
judging whether the target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is less than or equal to th preset temperature difference E1, and simultaneously judging whether the indoor relative humidity phi is greater than or equal to th preset relative humidity phi 1 or the difference value delta phi between the indoor relative humidity phi and the target relative humidity phi s is greater than or equal to preset relative humidity phi 2;
if the target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is less than or equal to the th preset temperature difference E1, and the indoor relative humidity phi is greater than or equal to the preset relative humidity phi 1 or the difference value delta phi between the indoor relative humidity phi and the target relative humidity phi s is greater than or equal to the preset relative humidity difference phi 2, the double-air-duct air conditioner enters the ultra-low sensible heat high latent heat load area dehumidification mode;
when the double-air-channel air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area, controlling a compressor of the double-air-channel air conditioner to operate at a low frequency, controlling the upper fan to operate at a low wind gear, and controlling the lower fan to operate at the lowest rotating speed at which the fans can operate reliably;
judging whether a target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than th preset temperature difference E1 and less than or equal to second preset temperature difference E2, and simultaneously judging whether the indoor relative humidity phi is greater than or equal to preset relative humidity phi 1 or the difference value delta phi between the indoor relative humidity phi and the target relative humidity phi s is greater than or equal to preset relative humidity phi 2;
if the target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than th preset temperature difference E1 and less than or equal to second preset temperature difference E2, and meanwhile, the indoor relative humidity phi is greater than or equal to preset relative humidity phi 1 or the difference value delta phi between the indoor relative humidity phi and the target relative humidity phi s is greater than or equal to preset relative humidity phi 2, the double-air-duct air conditioner enters a dehumidification mode of a low sensible heat high latent heat load area;
when the double-air-channel air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area, controlling a compressor of the double-air-channel air conditioner to operate at a low frequency, and controlling the upper fan and the lower fan to operate at a low wind gear;
judging whether a target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than a second preset temperature difference E2 or not, and the outdoor environment temperature Tout is greater than or equal to the outdoor preset temperature Tout 1;
if the target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than a second preset temperature difference E2, and the outdoor environment temperature Tout is greater than or equal to the outdoor preset temperature Tout1, the dual-air-duct air conditioner enters a dehumidification mode of a middle and high sensible heat load area;
when the double-air-duct air conditioner operates in a dehumidification mode of a middle and high sensible heat load area, controlling the upper fan and the lower fan to operate at a wind speed gear set by a user;
wherein E2 is more than or equal to 3 ℃ and E1 is more than or equal to-1 ℃, Tout1 is more than or equal to 24 ℃, 100 percent is more than or equal to phi 1 and more than or equal to 70 percent, and 50 percent is more than or equal to phi 2 and more than or equal to 10 percent.
As a preferable mode of the dehumidification method of the present invention, during the operation of the dual air conditioner in the dehumidification mode of the ultra-low sensible heat and high latent heat load region, the rotation speed R of the upper fan is changed according to a change in a difference Δ T between the dew point temperature TL and the temperature Te _ up of the upper evaporator, and the rotation speed R of the lower fan is changed according to a change in the temperature Te _ down of the lower evaporator;
the control method of the rotating speed R of the upper fan comprises the steps that after the double-air-duct air conditioner operates in an ultra-low sensible heat high latent heat load area dehumidification mode for a time period T1, when indoor relative humidity phi is larger than target relative humidity phi, if delta T is within a preset threshold range, namely T2 is larger than or equal to delta T1, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (n) of an upper operating period of the upper fan, if delta T is smaller than T2, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (TL) of an upper operating period of the upper fan minus preset gear rotating speeds delta R of the upper fan, if delta T is larger than T1, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (n) of an upper operating period of the upper fan, gear rotating speeds of the upper fan are increased, and the upper fan is operated at a preset gear rotating speed R (n +1) when the rotating speed R (n) of the upper fan is equal to the upper operating period of the upper fan is equal to the upper fan, the indoor sensible heat load temperature of the indoor relative humidity, the indoor relative humidity of the indoor air conditioner is determined to be equal to the indoor temperature of the indoor environment, and the indoor relative humidity of the indoor environment, the indoor temperature of the indoor air conditioner is equal to be equal to the indoor high humidity (T -2, and the indoor relative humidity room temperature of the indoor relative humidity, and the indoor temperature of the indoor humidity (T -2, and;
the control of the rotating speed r of the lower fan is specifically that after the double-air-channel air conditioner operates in a dehumidification mode of an ultra-low sensible heat high latent heat load area for t1 time period, when the temperature Te _ down of the lower evaporator is in a preset threshold range, namely Te _ down2 is more than Te _ down1, the rotating speed r (n +1) of the lower operating period of the lower fan is equal to the rotating speed r (n) of the upper operating period of the lower fan, when the temperature Te _ down of the lower evaporator is less than or equal to Te _ down1, the rotating speed r (n +1) of the lower operating period of the lower fan is equal to the rotating speed r (n) of the upper operating period of the lower fan, preset rotating speeds delta r of the upper fan are increased, and the double-air-channel air conditioner operates in the dehumidification mode of the ultra-low sensible heat high load area for every t 23 time to continuously detect the temperature Te of the lower evaporator for 734 times;
wherein, T1 is more than or equal to 20 ℃ and more than or equal to T2 and more than or equal to 0 ℃, T1 and more than or equal to 0.5min, T2 and more than or equal to 0.5min, Te _ Down2 is more than or equal to Te _ Down1 and more than or equal to-1 ℃, delta R and more than or equal to 1rpm, the upper limit value of R is the low wind gear rotating speed of the upper fan, the lower limit value of R is the lowest rotating speed of the upper fan in reliable operation, the upper limit value of R is the low wind gear rotating speed of the lower fan, and the lower limit value of R is the lowest rotating speed of the lower fan in reliable operation.
As a preferable mode of the dehumidification method of the present invention, during the operation of the dual air conditioner in the dehumidification mode of the low sensible heat and high latent heat load region, the rotation speed R of the upper fan is changed according to a change in a difference Δ T between the dew point temperature TL and the temperature Te _ up of the upper evaporator, and the rotation speed R of the lower fan is changed according to a change in a difference Δ T between the dew point temperature TL and the temperature Te _ down of the lower evaporator;
the control method of the rotating speed R of the upper fan comprises the steps that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat high latent heat load area for T1 time period, if delta T is within a preset threshold range when indoor relative humidity phi is larger than target relative humidity phi s, namely T2 is larger than or equal to delta T1, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (n) of an upper operating period of the upper fan, if delta T is smaller than T2, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (n) of an upper operating period of the upper fan (TL) minus preset gear rotating speeds of the upper fan, if delta T is larger than T1, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (n) of an upper operating period of the upper fan, gear rotating speeds of the upper fan are added, and the upper fan is further adjusted according to obtain the indoor relative humidity temperature of the indoor air conditioner after the indoor relative humidity temperature of the indoor air conditioner is equal to the indoor relative humidity T3638, the indoor relative humidity is equal to the indoor relative humidity phi T -T2, and the indoor relative humidity temperature of the indoor relative humidity upper room is confirmed, and the indoor relative humidity of the indoor relative humidity, and the indoor relative humidity of the indoor air conditioner is equal to the indoor relative humidity of the indoor high humidity (T + 7 indoor relative humidity, and the indoor relative humidity of the indoor air conditioner is equal to the indoor wet room, and the indoor relative humidity of the indoor air conditioner is equal to;
the control method of the rotating speed r of the lower fan comprises the steps that after the double-air-duct air conditioner operates in a dehumidification mode of a low-sensible-heat high-latent-heat load area for T1 time period, if delta T is within a preset threshold range when indoor relative humidity phi is larger than target relative humidity phi s, namely T2 is larger than or equal to T1, the rotating speed r (n +1) of a lower operating period of the lower fan is equal to the rotating speed r (n) of an upper operating period of the upper fan, if delta T is smaller than T2, the rotating speed r (n +1) of a lower operating period of the upper fan is equal to the rotating speed r (n) of an upper operating period of the upper fan by subtracting preset gear rotating speeds delta r of the upper fan from T2, if delta T is larger than T1, the rotating speed r (n +1) of a lower operating period of the upper fan is equal to the rotating speed r (n) of an upper operating period of the upper fan, preset gear rotating speeds of the upper fan are increased, and the lower fan is equal to obtain a comparison result when the indoor relative humidity temperature of the indoor relative humidity of the indoor air conditioner is smaller than the indoor relative humidity phi T2, the indoor relative humidity of the indoor lower air conditioner, the indoor relative humidity of the indoor relative humidity load area is equal to obtain a comparison result, and the indoor temperature of the indoor sensible heat load area, and the indoor temperature of the indoor relative humidity of the indoor sensible heat air conditioner is equal to obtain a comparison result of the indoor temperature of the indoor sensible heat load area, and the indoor temperature of the indoor sensible heat load area, wherein the;
wherein, T1 is more than or equal to 20 ℃ and more than or equal to T2 and more than or equal to 0 ℃, T1 and more than or equal to 0.5min, T2 and more than or equal to 0.5min, Te _ Down2 is more than or equal to Te _ Down1 and more than or equal to-1 ℃, delta R and more than or equal to 1rpm, the upper limit value of R is the low wind gear rotating speed of the upper fan, the lower limit value of R is the lowest rotating speed of the upper fan in reliable operation, the upper limit value of R is the low wind gear rotating speed of the lower fan, and the lower limit value of R is the lowest rotating speed of the lower fan in reliable operation.
As a preferable scheme of the dehumidification method, an upper electric heater is arranged on the upper air flue, a lower electric heater is arranged on the lower air flue, and when the double-air-flue air conditioner continuously operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area, if a target temperature difference E is less than or equal to a third preset temperature difference E3, or two of the upper electric heater and the lower electric heater are turned on, wherein E3 is less than or equal to-1 ℃.
The frequency F of the compressor of the double-air-channel air conditioner is positively and strongly related to a target temperature difference E, the value E is larger, the value F is higher, when the double-air-channel air conditioner operates in an ultralow sensible heat and high latent heat load area dehumidification mode, the minimum value of the frequency F of the compressor of the double-air-channel air conditioner is Fmin, the maximum value of the frequency F is N1% ＊ Fmax, when the double-air-channel air conditioner operates in a low sensible heat and high latent heat load area dehumidification mode, the minimum value of the frequency F of the compressor of the double-air-channel air conditioner is Fmin, the maximum value of the frequency F is N2% ＊ Fmax, wherein N1 is more than N2 and less than or equal to 50, N1% ＊ Fmax and N2% ＊ Fmax both belong to a low-frequency area of the compressor, the Fmin is the minimum frequency of reliable operation of the compressor, and the Fmax is the maximum frequency of.
The embodiment of the second aspect of the invention provides dehumidification systems of double-air-channel air conditioners, wherein an indoor unit of the double-air-channel air conditioner comprises an upper air channel and a lower air channel, an upper fan and an upper evaporator are arranged on the upper air channel, a lower fan and a lower evaporator are arranged on the lower air channel, and the dehumidification systems of the double-air-channel air conditioners comprise:
the acquisition module is used for acquiring a target temperature Ts and a target relative humidity phi s set by a user and acquiring an indoor environment temperature Tin, an outdoor environment temperature Tout and an indoor relative humidity phi in real time;
the judging module is used for judging whether the double-air-duct air conditioner meets a parameter condition required by entering a dehumidification mode of an ultra-low sensible heat and high latent heat load area, judging whether the double-air-duct air conditioner meets a second parameter condition required by entering the dehumidification mode of a low sensible heat and high latent heat load area, and judging whether the double-air-duct air conditioner meets a third parameter condition required by entering a dehumidification mode of a medium sensible heat and high sensible heat load area, wherein the parameter condition is that a target temperature difference E between a target temperature Ts and an indoor environment temperature Tin is less than or equal to a preset temperature difference E1, meanwhile, the indoor relative humidity is greater than or equal to a preset relative humidity phi 1 or a difference delta phi 865s between the indoor relative humidity phi 865s and a target relative humidity phi 865s is greater than or equal to a preset relative humidity phi 2, the second parameter condition is that a target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than or equal to a preset relative humidity phi , the target temperature difference E is greater than or equal to a second preset temperature difference E2, and is greater than or equal to a preset temperature difference T635, the outdoor temperature difference T is greater than or equal to a preset temperature difference T2, the target temperature T25 ℃ and the outdoor temperature difference T25, wherein the target temperature difference T is greater than or equal to a preset temperature T24 percent Tophi 24 percent, the target temperature difference T25, the outdoor temperature difference T25, the target temperature difference T24 is greater than or;
the control module is used for controlling the compressor of the double-air-channel air conditioner to operate at a low frequency, controlling the upper fan to operate at a low wind gear and controlling the lower fan to operate at the lowest rotating speed at which the fans can operate reliably when the double-air-channel air conditioner is judged to need to enter a dehumidification mode of an ultralow sensible heat and high latent heat load area; the system comprises a double-air-channel air conditioner, an upper fan, a lower fan, a control module and a control module, wherein the double-air-channel air conditioner is used for controlling the compressor of the double-air-channel air conditioner to operate at low frequency and controlling the upper fan and the lower fan to operate at a low wind gear when judging that the double-air-channel air conditioner needs to enter a dehumidification mode of a low sensible heat and; and the control unit is used for controlling the upper fan and the lower fan to operate at a wind speed gear set by a user when the double-air-channel air conditioner is judged to need to enter a dehumidification mode of a middle and high sensible heat load area.
As a preferable scheme of the dehumidification system of the present invention, the obtaining module is further configured to obtain a temperature Te _ up of the upper evaporator, a temperature Te _ down of the lower evaporator, and a dew point temperature TL in real time; the judging module is further used for judging whether the upper fan meets a fourth parameter condition required for keeping the rotating speed unchanged, judging whether the upper fan meets a fifth parameter condition required for reducing the rotating speed, judging whether the upper fan meets a sixth parameter condition required for increasing the rotating speed, judging whether the lower fan meets a seventh parameter condition required for keeping the rotating speed unchanged, and judging whether the lower fan meets an eighth parameter condition required for increasing the rotating speed; the fourth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is less than or equal to a target relative humidity phi s, or the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is within a preset threshold range, namely, the difference delta T is greater than or equal to T2 and less than or equal to T1; the fifth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is less than T2; the sixth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference value delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is greater than T1; the seventh parameter condition is that after the double-air-channel air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for t1 time period, the temperature Te _ down of the lower evaporator is in a preset threshold range, namely Te _ down2 is more than Te _ down and more than Te _ down 1; the eighth parameter condition is that the temperature Te _ down of the lower evaporator is less than or equal to Te _ down1 after the double-air-channel air conditioner operates for t1 time period in a dehumidification mode of a low sensible heat and high latent heat load area; the control module is further used for controlling the rotating speed of the upper fan to keep unchanged when the parameter condition is judged to be a fourth parameter condition, controlling the rotating speed of the upper fan to reduce by delta R when the parameter condition is judged to be a fifth parameter condition, controlling the rotating speed of the upper fan to increase by delta R when the parameter condition is judged to be a sixth parameter condition, controlling the rotating speed of the lower fan to keep unchanged when the parameter condition is judged to be a seventh parameter condition, and controlling the rotating speed of the lower fan to increase by delta R when the parameter condition is judged to be an eighth parameter condition; wherein, T1 is more than or equal to 20 ℃ and more than or equal to T2 and more than or equal to 0 ℃, T1 is more than or equal to 0.5min, Te _ down2 is more than or equal to Te _ down1 and more than or equal to-1 ℃, delta R is more than or equal to 1rpm, the upper limit value of R is the low wind gear rotating speed of the upper fan, the lower limit value of R is the lowest rotating speed of the upper fan for reliable operation, the upper limit value of R is the low wind gear rotating speed of the lower fan, and the lower limit value of R is the lowest rotating speed of the lower fan for reliable operation.
As a preferable scheme of the dehumidification system of the present invention, the obtaining module is further configured to obtain a temperature Te _ up of the upper evaporator, a temperature Te _ down of the lower evaporator, and a dew point temperature TL in real time; the judging module is further used for judging whether the upper fan meets a fourth parameter condition required for keeping the rotating speed unchanged, judging whether the upper fan meets a fifth parameter condition required for reducing the rotating speed, judging whether the upper fan meets a sixth parameter condition required for increasing the rotating speed, judging whether the lower fan meets a seventh parameter condition required for keeping the rotating speed unchanged, judging whether the lower fan meets an eighth parameter condition required for reducing the rotating speed, and judging whether the lower fan meets a ninth parameter condition required for increasing the rotating speed; the fourth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for T1 time period, the indoor relative humidity phi is less than or equal to a target relative humidity phi s, or the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is within a preset threshold range, namely, the difference delta T between the T2 and the T1 is greater than or equal to; the fifth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is less than T2; the sixth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is greater than T1; the seventh parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is less than or equal to the target relative humidity phi s, or the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ down of the lower evaporator is within a preset threshold range, namely, the delta T is more than or equal to T2 and less than or equal to T1; the eighth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference value delta T between the dew-point temperature TL and the temperature Te _ down of the lower evaporator is less than T2; the ninth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference value delta T between the dew point temperature TL and the temperature Te _ down of the lower evaporator is greater than T1; the control module is further used for controlling the rotating speed of the upper fan to keep unchanged when the parameter condition is judged to be a fourth parameter condition, controlling the rotating speed of the upper fan to reduce by delta R when the parameter condition is judged to be a fifth parameter condition, controlling the rotating speed of the upper fan to increase by delta R when the parameter condition is judged to be a sixth parameter condition, controlling the rotating speed of the lower fan to keep unchanged when the parameter condition is judged to be a seventh parameter condition, controlling the rotating speed of the lower fan to reduce by delta R when the parameter condition is judged to be an eighth parameter condition, and controlling the rotating speed of the lower fan to increase by delta R when the parameter condition is judged to be a ninth parameter condition; wherein, T1 is more than or equal to 20 ℃ and more than or equal to T2 and more than or equal to 0 ℃, T1 is more than or equal to 0.5min, Te _ down2 is more than or equal to Te _ down1 and more than or equal to-1 ℃, delta R is more than or equal to 1rpm, the upper limit value of R is the low wind gear rotating speed of the upper fan, the lower limit value of R is the lowest rotating speed of the upper fan for reliable operation, the upper limit value of R is the low wind gear rotating speed of the lower fan, and the lower limit value of R is the lowest rotating speed of the lower fan for reliable operation.
The dehumidification system comprises an upper air duct, a lower air duct, a judgment module and a control module, wherein the upper air duct is provided with an upper electric heater, the lower air duct is provided with a lower electric heater, the judgment module is further used for judging whether the upper electric heater and the lower electric heater meet a tenth parameter condition required by starting, the tenth parameter condition is that a target temperature difference E is smaller than or equal to a third preset temperature difference E3 and E3 is smaller than or equal to minus 1 ℃, and the control module is further used for controlling or two of the upper electric heater and the lower electric heater to be started when the parameter condition is judged to be the tenth parameter condition.
An embodiment of a third aspect of the present invention provides dual-duct air conditioner, which includes the above-mentioned dehumidification system, wherein the indoor unit of the dual-duct air conditioner further includes a humidity sensor for detecting indoor relative humidity, a th temperature sensor for detecting indoor ambient temperature, a second temperature sensor for detecting temperature of an upper evaporator, and a third temperature sensor for detecting temperature of a lower evaporator, the humidity sensor, the th temperature sensor, the second temperature sensor, and the third temperature sensor are respectively electrically connected to the acquisition module, a partition board is disposed between the upper duct and the lower duct, a total inlet of the upper evaporator and a total inlet of the lower evaporator are respectively connected to the total flow divider, the upper evaporator includes 1 or more branches, and when the upper evaporator includes 1 or more branches, a branch inlet of the upper evaporator is provided with an upper flow divider, the second temperature sensor is disposed at a middle position of branches of the upper evaporator, the lower evaporator includes 1 or more branches, and when the lower evaporator includes 1 or more branches, the lower evaporator includes branches, and when the lower evaporator includes more branches, the lower evaporator includes a lower evaporator, the upper flow divider is disposed at a lower flow divider is disposed at a middle position of the lower evaporator, and the lower flow divider is disposed with a temperature sensor, and the upper flow divider is disposed at a lower flow divider, and the lower flow divider is disposed at a lower flow divider, and a temperature sensor is disposed at.
Compared with the prior art, the double-air-channel air conditioners and the dehumidification method and the dehumidification system thereof have the advantages that:
according to the embodiment of the invention, whether the air conditioner meets the parameter conditions of entering an ultra-low sensible heat high latent heat load area dehumidification mode, a low sensible heat high latent heat load area dehumidification mode and a medium and high sensible heat load area dehumidification mode is judged by acquiring the target temperature Ts and the target relative humidity phi set by a user, and acquiring the indoor environment temperature Tin, the outdoor environment temperature Tout and the indoor relative humidity phi in real time, and the rotating speeds of an upper fan and a lower fan are controlled under a certain dehumidification mode, so that the sensible heat component and the latent heat component of the air conditioner are changed, thereby realizing the mutual switching among the ultra-low sensible heat high latent heat load area dehumidification mode, the low sensible heat high latent heat load area dehumidification mode and the medium and high sensible heat load area dehumidification mode, improving the coverage area of the load point of an air conditioner product, particularly controlling the upper fan to operate at a low wind gear level when the dual-air-channel air conditioner operates in the ultra-low sensible heat high latent heat load area dehumidification mode, mainly promoting air circulation, controlling the lower fan to operate at a lowest rotating speed which can reliably operate, mainly dehumidifying mainly for dehumidification, further improving the latent heat output of a compressor when the low-frequency high latent heat load area dehumidification mode operates, reducing the constant temperature, realizing the sensible heat output, and realizing the normal cooling, and reducing the sensible heat load of the room and reducing the sensible heat.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a distribution diagram of load points of a room in a high-humidity city, a typical room type of a fixed area, with a temperature of 27 ℃ and a relative humidity of 50%, during a period of 5 months and 1 day to 9 months and 30 days per year;
fig. 2 is a distribution diagram of load points dividing an output load of an air conditioner into four regions according to conditions such as an outdoor ambient temperature, an indoor relative humidity, and a set temperature;
fig. 3 is a schematic structural view of an indoor unit of kinds of dual duct air conditioners provided by the invention;
FIG. 4 is a flow chart of the dehumidification method of kinds of double-air-channel air conditioners provided by the invention;
fig. 5 is a connection block diagram of the dehumidification system of kinds of double-duct air conditioners provided by the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only partial embodiments of of the present invention, rather than all embodiments.
Fig. 3 is a schematic structural diagram of dual air-conditioners according to an embodiment of the present invention, and as shown in fig. 3, an indoor unit of the dual air-conditioner includes an upper air duct 1 and a lower air duct 2, where the upper air duct 1 is provided with an upper fan and an upper evaporator 3, and the lower air duct 2 is provided with a lower fan and a lower evaporator 4.
Fig. 4 is a flowchart of a dehumidification method of a dual-duct air conditioner according to embodiments of the present invention, and as shown in fig. 4, the dehumidification method of the dual-duct air conditioner includes the following steps:
step S101, after the dual-air-channel air conditioner receives a dehumidification instruction or operates in a refrigeration mode, a target temperature Ts and a target relative humidity φ S set by a user are obtained, and an indoor environment temperature Tin, an outdoor environment temperature Tout and an indoor relative humidity φ are obtained in real time, specifically, the user can send a starting instruction to the air conditioner through a remote controller of the air conditioner, a control display screen of the air conditioner, an APP of a mobile terminal, a client of a PC and the like to control the air conditioner to start, and the target temperature Ts and the target relative humidity φ S of the air conditioner are set , wherein the range of φ S manually set by the user is 30% -70% of a relative humidity range which is comfortable for human, namely, the upper limit of φ S is 70%, the lower limit of φ S is 30%, and if the user does not manually set, the relative humidity is relative humidity in a default humidity comfortable range of 30% -70%, and if.
Step S102, judging whether a target temperature difference E between a target temperature Ts and an indoor environment temperature Tin is smaller than or equal to th preset temperature difference E1, and simultaneously judging whether an indoor relative humidity phi is larger than or equal to th preset relative humidity phi 1 or a difference value delta phi between the indoor relative humidity phi and a target relative humidity phi S is larger than or equal to preset relative humidity phi 2;
step S103, if the target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is less than or equal to th preset temperature difference E1, and the indoor relative humidity phi is greater than or equal to preset relative humidity phi 1 or the difference value delta phi between the indoor relative humidity phi and the target relative humidity phi S is greater than or equal to preset relative humidity difference phi 2, the double-air-duct air conditioner enters a dehumidification mode of an ultralow sensible heat high latent heat load area;
step S104, when the double-air-channel air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area, controlling a compressor of the double-air-channel air conditioner to operate at a low frequency, controlling the upper fan to operate at a low wind gear, and controlling the lower fan to operate at a lowest rotating speed at which the fans can operate reliably; the lowest rotating speed of the fan for reliable operation is the rotating speed at which the controller can control the motor to stably operate (the rotating speed is lower, and the fan may operate in an unbalanced manner), and is determined by the design of a manufacturer;
step S105, judging whether a target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is larger than th preset temperature difference E1 and smaller than or equal to second preset temperature difference E2, and simultaneously judging whether the indoor relative humidity phi is larger than or equal to preset relative humidity phi 1 or the difference value delta phi between the indoor relative humidity phi and the target relative humidity phi S is larger than or equal to preset relative humidity phi 2;
step S106, if the target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than th preset temperature difference E1 and less than or equal to second preset temperature difference E2, and meanwhile, the indoor relative humidity phi is greater than or equal to preset relative humidity phi 1 or the difference value delta phi between the indoor relative humidity phi and the target relative humidity phi S is greater than or equal to preset relative humidity phi 2, the double-air-duct air conditioner enters a dehumidification mode of a low sensible heat high latent heat load area;
step S107, when the double-air-channel air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area, controlling a compressor of the double-air-channel air conditioner to operate at a low frequency, and controlling the upper fan and the lower fan to operate at a low wind gear;
step S108, judging whether a target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than a second preset temperature difference E2 or not, and the outdoor environment temperature Tout is greater than or equal to the outdoor preset temperature Tout 1;
step S109, if the target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than a second preset temperature difference E2, and the outdoor environment temperature Tout is greater than or equal to the outdoor preset temperature Tout1, the double-air-duct air conditioner enters a dehumidification mode of a middle and high sensible heat load area;
step S110, when the double-air-duct air conditioner operates in a dehumidification mode of a middle and high sensible heat load area, controlling the upper fan and the lower fan to operate at a wind speed gear set by a user;
wherein E2 is more than or equal to 3 ℃ and E1 is more than or equal to-1 ℃, Tout1 is more than or equal to 24 ℃, 100 percent is more than or equal to phi 1 and more than or equal to 70 percent, and 50 percent is more than or equal to phi 2 and more than or equal to 10 percent.
It should be noted that, steps S102 to S104, steps S105 to S107, and steps S108 to S110 are independent from each other, and the ultra-low sensible heat and high latent heat load dehumidification mode, the low sensible heat and high latent heat load dehumidification mode, and the medium and high sensible heat load dehumidification mode can be switched to each other if corresponding preset parameter conditions are satisfied, because the temperature and humidity of the room are changed during the air conditioning dehumidification.
Therefore, the dehumidification method of the double-air-channel air conditioner provided by the embodiment of the invention can realize the mutual switching among the dehumidification mode of the ultralow sensible heat and high latent heat load area, the dehumidification mode of the low sensible heat and high latent heat load area and the dehumidification mode of the middle and high sensible heat load areas, improves the coverage area of the load point of an air conditioner product, particularly controls the upper fan to operate at a low wind gear position when the double-air-channel air conditioner operates at the dehumidification mode of the ultralow sensible heat and high latent heat load area, mainly promotes air circulation, controls the lower fan to operate at the lowest rotating speed at which the fan operates reliably, mainly dehumidifies, further improves the latent heat output when the compressor operates at a low frequency, reduces the sensible heat output, realizes constant temperature dehumidification, effectively ensures that the air conditioner can perform normal dehumidification at the ultralow sensible heat and high latent heat load area, does not reduce or slightly reduces the room temperature, and enables the air conditioner to adapt to the room load in more, the comfort requirement that the temperature and the humidity can be controlled to satisfy the user is realized.
Based on the above embodiment, because the influence of the rotating speed of the indoor fan on the temperature of the evaporator is considered, in order to adapt to the change of the temperature of the evaporator, the dehumidifying capability of the air conditioner is more reliable and energy-saving, so the rotating speed of the indoor fan and the temperature change relation of the evaporator can be designed according to the operation mode of the dual-air-channel air conditioner, which is specifically as follows:
, when the double-air-duct air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area, the rotating speed R of the upper fan changes according to the change of the difference value delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator 3, and the rotating speed R of the lower fan changes according to the change of the temperature Te _ down of the lower evaporator 4.
The control method of the rotating speed R of the upper fan comprises the steps that after the double-air-duct air conditioner operates in an ultra-low sensible heat high latent heat load area dehumidification mode for a time period T1, when indoor relative humidity phi is larger than target relative humidity phi, if delta T is within a preset threshold range, namely T2 is larger than or equal to delta T1, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (n) of an upper operating period of the upper fan, if delta T is smaller than T2, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (TL) of an upper operating period of the upper fan minus preset gear rotating speeds delta R of the upper fan, if delta T is larger than T1, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (n) of an upper operating period of the upper fan, gear rotating speeds of the upper fan are added, and the upper fan is further adjusted according to the indoor relative humidity temperature T , the indoor relative humidity temperature of the upper fan is equal to the indoor air conditioner, and the indoor relative humidity temperature of the indoor air conditioner is determined according to the indoor relative humidity, the indoor relative humidity temperature of the indoor air conditioner is equal to the indoor temperature T -34, and the indoor relative humidity upper air conditioner, and the indoor relative humidity temperature of the indoor relative humidity.
The control of the rotating speed r of the lower fan is characterized in that after the double-air-channel air conditioner operates in a dehumidification mode of an ultralow sensible heat high latent heat load area for a time period of t1, the rotating speed of the lower fan is very low, the evaporation temperature is very low, so that the detected anti-freezing protection value of the temperature Te _ down of the lower evaporator 4 is lower than the temperature Te _ up of the upper evaporator 3, the anti-freezing protection value of the lower evaporator 4 (preventing the evaporator from freezing) is set between Te _ down1 and Te _ down2, when the temperature Te _ down of the lower evaporator 4 is in a preset threshold range, namely Te _ down2 is greater than Te _ down > Te _ down1, the rotating speed r (n +1) of the lower operating period of the lower fan is equal to the rotating speed r (n) of the upper operating period of the lower fan, when the temperature Te _ down of the lower evaporator 4 is not greater than Te _ down > Te _ down1, the rotating speed r (n +1) of the lower fan operates in a continuous mode, and the lower fan operates in a dehumidification mode for a time period of t1, and the lower fan operates in a period of the ultralow sensible heat high latent heat load area, and the lower evaporator 4, and the lower fan operates in a period of the lower fan for a period of t 63n + 13.
Secondly, in the process of operating the double-air-duct air conditioner in a dehumidification mode of a low sensible heat and high latent heat load area, the rotating speed R of the upper fan changes according to the change of the difference value delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator 3, and the rotating speed R of the lower fan changes according to the change of the difference value delta T between the dew point temperature TL and the temperature Te _ down of the lower evaporator 4.
The control method of the rotating speed R of the upper fan comprises the steps that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat high latent heat load area for T1 time period, if delta T is within a preset threshold range when indoor relative humidity phi is larger than target relative humidity phi s, namely T2 is larger than or equal to delta T1, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (n) of an upper operating period of the upper fan, if delta T is smaller than T2, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (n) of an upper operating period of the upper fan (TL) minus preset gear rotating speeds of the upper fan, if delta T is larger than T1, the rotating speed R (n +1) of a lower operating period of the upper fan is equal to the rotating speed R (n) of an upper operating period of the upper fan, gear rotating speeds of the upper fan are added, when the rotating speed R (n +1) of the upper operating period is equal to the rotating speed R (n) of the upper fan is equal to the rotating speed R (n) of the upper operating period, the upper fan is equal to the rotating speed R (n), the rotating speed of the upper fan, the upper fan is equal to the rotating speed R (n), and the indoor relative humidity of the indoor sensible heat load operating period, the indoor air conditioner is equal to the indoor relative humidity of the indoor environment temperature of the indoor air conditioner is confirmed, the indoor relative humidity of the indoor air conditioner is equal to be equal to the indoor sensible heat load area, the indoor temperature of.
The control method of the rotating speed r of the lower fan comprises the steps that after the double-air-channel air conditioner operates in a dehumidification mode of a low-sensible-heat high-latent-heat load area for T1 time period, if delta T is within a preset threshold range when indoor relative humidity phi is larger than target relative humidity phi s, namely T2 is larger than or equal to delta T1, the rotating speed r (n +1) of a lower operating period of the lower fan is equal to the rotating speed r (n) of an upper operating period of the upper fan, if delta T is smaller than T2, the rotating speed r (n +1) of a lower operating period of the upper fan is equal to the rotating speed r (n) of an upper operating period of the upper fan by subtracting preset gear rotating speeds delta r of the upper fan, if delta T is larger than T1, the rotating speed r (n +1) of a lower operating period of the upper fan is equal to the rotating speed r (n) of an upper operating period of the upper fan, gear rotating speeds of the upper fan are added, and the lower fan is further adjusted according to the indoor relative humidity temperature of the indoor air conditioner, the indoor relative humidity of the lower air conditioner is equal to the indoor relative humidity 3636, the indoor relative humidity of the indoor air conditioner is equal to the indoor relative humidity of the indoor air conditioner, the indoor relative humidity of the indoor air conditioner is confirmed, the indoor air conditioner is stabilized temperature of the indoor wet air conditioner is equal to the indoor wet air conditioner, the indoor wet.
Wherein, T1 is more than or equal to 20 ℃ and more than or equal to T2 and more than or equal to 0 ℃, T1 and more than or equal to 0.5min, T2 and more than or equal to 0.5min, Te _ Down2 is more than or equal to Te _ Down1 and more than or equal to-1 ℃, delta R and more than or equal to 1rpm, the upper limit value of R is the low wind gear rotating speed of the upper fan, the lower limit value of R is the lowest rotating speed of the upper fan in reliable operation, the upper limit value of R is the low wind gear rotating speed of the lower fan, and the lower limit value of R is the lowest rotating speed of the lower fan in reliable operation.
It should be noted that the rule for obtaining the dew point temperature TL is: if the detected indoor environment temperature is a non-integer, taking the integer after the current indoor environment temperature is plus 0.5 ℃ as the indoor environment temperature of the indoor environment temperature-indoor relative humidity-dew point temperature comparison table, and if the detected indoor relative humidity is a non-integer, taking the integer multiple of 5% after the current indoor relative humidity is plus 2.5% as the indoor relative humidity of the indoor environment temperature-indoor relative humidity-dew point temperature comparison table. See in particular table 1 below:
indoor environment temperature-indoor relative humidity-dew point temperature comparison table (relative humidity unit%, indoor temperature, dew point temperature unit degree C.)
, as shown in fig. 3, an upper electric heater 11 is arranged on the upper air duct 1, a lower electric heater 12 is arranged on the lower air duct 2, when the dual-air-duct air conditioner continuously operates in a dehumidification mode of an ultra-low sensible heat and high latent heat load area, if a target temperature difference E is less than or equal to a third preset temperature difference E3, or two of the upper electric heater 11 and the lower electric heater 12 are turned on to generate heat, so as to offset the output of sensible heat (cold) of the air conditioner and prevent the indoor temperature from being too low, wherein E3 is less than or equal to-1 ℃.
, the frequency F of a compressor of the double-air-channel air conditioner is in positive and strong correlation with a target temperature difference E, the value E is larger, the minimum value of the frequency F of the compressor of the double-air-channel air conditioner is Fmin, the maximum value of the frequency F is N1% ＊ Fmax when the double-air-channel air conditioner operates in an ultra-low sensible heat and high latent heat load area dehumidification mode, the minimum value of the frequency F of the compressor of the double-air-channel air conditioner is Fmin, the maximum value of the frequency F is N2% ＊ Fmax when the double-air-channel air conditioner operates in a low sensible heat and high latent heat load area dehumidification mode, N1 is larger than N2 and smaller than or equal to 50, N1% ＊ Fmax and N2% ＊ Fmax both belong to a low-frequency interval of the compressor, the Fmin is the minimum frequency of reliable operation of the compressor, and the Fmax is the maximum.
The following describes the dehumidification method of the dual duct air conditioner in detail by using two examples:
example :
when the air conditioner refrigerates and automatically runs at the wind speed or in a dehumidifying mode, all parameters are set as follows: Δ R is 5rpm, Δ R is 10rpm, T1 is 10 ℃, T2 is 5 ℃, E1 is 0.5 ℃, E2 is 3 ℃, the lowest rotation speed of the lower fan in reliable operation is 100rpm, the lowest rotation speed of the upper fan in reliable operation is 50rpm, Φ 1 is 80%, Φ 2 is 20%, Te _ down2 is 5 ℃, Te _ down1 is 0 ℃, T1 is 10min, T2 is 5min, Tout1 is 30 ℃, N2 is 50, Fmax is 80 Hz. The indoor ambient temperature Tin is 30 ℃, the indoor relative humidity phi is 92%, and the outdoor ambient temperature is 35 ℃. The target temperature Ts is 25 ℃ and the target relative humidity φ s is 50% (if the relative humidity cannot be set, the default is 65%), and when the target temperature difference E is Tin-Ts 30 ℃ -25 ℃ 5 ℃ > 3 ℃ (E2), φ 92% > 80% (φ 1), Tout 35 ℃ > 30 ℃ (Tout1) meets the definition of the medium and high sensible heat load region, the dehumidification mode of the medium and high sensible heat load region is entered. Indoor set: the gears of the upper fan and the lower fan are controlled to be synchronous, and the initial rotating speed can be automatic wind or low wind and is determined by a specific manufacturer.
After a plurality of minutes, detecting the indoor environment temperature Tin to be 26 ℃, the indoor relative humidity phi to be 75%, wherein the target temperature difference E to Tin-Ts to be 26-25 ℃, 1 ℃ and less than 3 ℃ (E2) and more than 0.5 ℃ (E1), phi to phi s to be 75-50%, 25% and more than 20% (phi 2), and according to the definition of the low-sensible-heat high-latent-heat load area, entering the dehumidification mode of the low-sensible-heat high-latent-heat load area. Indoor set: the gear of the upper fan and the gear of the lower fan are forcibly switched to a low gear, after 5min, the indoor environment temperature Tin is 25.5 ℃, the indoor relative humidity phi is 72%, and the system automatically corrects the dew point temperature TL obtained in the table 1 above to be 21 ℃. Controlling the rotation speed of an upper fan to be constant if the temperature Te _ up of the upper evaporator 3 is 17 ℃, the temperature Delta T is 4 ℃ < 5 ℃ (T2), controlling the rotation speed of the upper fan to be-5 rpm, and if the temperature Te _ up of the upper evaporator 3 is 13 ℃, the temperature Delta T (TL-Te _ up ═ 21-13) > 8 ℃ and < 10 ℃ (T1), and controlling the rotation speed of the upper fan to be constant, if the temperature Te _ up of the upper evaporator 3 is 9 ℃, the temperature Delta T is 12 ℃ > 10 ℃ (T1), controlling the rotation speed of the upper fan to be +5rpm, and controlling the detection period of whether the rotation speed of the upper fan changes to be 5 min; if the temperature Te _ down of the lower evaporator 4 is 18 ℃, Δ T is 3 ℃ < 5 ℃ (T2), the lower fan speed is controlled at-10 rpm, if the temperature Te _ down of the lower evaporator 4 is 12 ℃, Δ T (Δ T TL-Te _ down is 21-12) > 9 ℃ and < 10 ℃ (T1) is controlled to be constant, if the temperature Te _ down of the lower evaporator 4 is 7 ℃, Δ T is 14 ℃ > 10 ℃ (T1), the lower fan speed +10rpm is controlled, and the detection period of whether the lower fan is changed is 5 min;
and in the outdoor unit, the highest frequency of the compressor in the dehumidification mode of the medium and high sensible heat load areas is 80Hz, and the highest frequency of the compressor in the dehumidification mode of the low sensible heat and high latent heat load areas is 50 percent ＊ 80 to 40 Hz.
Example two
When the air conditioner refrigerates and runs at the automatic wind speed or in a dehumidifying mode, the room temperature Tin is as follows: 25.5 ℃, 85% relative humidity, 25% temperature Ts, 55% relative humidity, 55% (if relative humidity cannot be set, 65% is default) Te _ down1 ═ 0 ℃, Te _ down2 ═ 5 ℃, N1 ═ 25, E3 ═ 2 ℃, and the other parameters are set as in example 1. And at the moment, the target temperature difference E is 25.5-Ts, 0.5-0.5 ℃ (E1), phi-phi s is 85-60% and more than 10% (phi 2), and the dehumidification mode enters the ultra-low sensible heat high latent heat load area if the definition of the ultra-low sensible heat high latent heat load area is met. Indoor set: controlling the upper fan to operate at a low wind gear; the lower fan is controlled to operate at a minimum speed of 100rpm for reliable operation. And detecting after 10min, and if the detected indoor environment temperature Tin is 25 ℃, the indoor relative humidity phi is 80%, and the target temperature difference E is Tin-Ts, 25-25 ℃, 0 ℃ and less than 0.5 ℃ (E1), and phi-phi s is 80% -55%, 25% -20% (phi 2). The system automatically corrects the dew point temperature TL which is 22 ℃, the temperature Te _ up which is 18 ℃ of the upper evaporator 3, the Delta T which is 4 ℃ and less than 5 ℃ (T2), controls the rotating speed of the upper fan to be 5rpm, controls the rotating speed of the upper fan to be constant if the temperature Te _ up which is 13 ℃ of the upper evaporator 3, the Delta T (the Delta T-TL-Te _ up which is 22-13) is 9 ℃ and more than 5 ℃ (T2) and less than 10 ℃ (T1), and controls the rotating speed of the upper fan to be constant if the temperature Te _ up which is 9 ℃ of the upper evaporator 3, the Delta T which is more than 13 ℃ (T1) and controls the rotating speed of the upper fan to be +5 rpm; after 10min, the temperature Te _ down of the lower evaporator 4 is 2 ℃ and more than 0 ℃ (Te _ down1) and less than 5 ℃ (Te _ down2), and the rotating speed r of the lower fan is 100rpm and is unchanged; when the temperature Te _ down of the lower evaporator 4 is-1 ℃ < 0 ℃ (Te _ down1), the lower fan speed r (n +1) ═ r (n) + Δ r ═ 100+10 ═ 110 rpm. The detection period for detecting whether the rotating speed of the upper fan and the rotating speed of the lower fan are changed is 5 min.
After several minutes, the indoor ambient temperature Tin is 23.5 ℃, the relative humidity phi is 75%, and at this time, the target temperature difference E ═ Tin-Ts is 22.5 ℃ -25 ℃ - & lt-2.5 ℃ - & lt-2 ℃ (E3), or two of the upper electric heater 11 or the lower electric heater 12 are controlled to be turned on, so as to counteract the reduction of the room temperature.
Outdoor unit, the highest frequency of the compressor in the dehumidification mode of the ultralow sensible heat and high latent heat load area is 25 percent ＊ 80-20 Hz.
Based on the dehumidification method of the dual-duct air conditioner, the embodiment of the invention further provides dehumidification systems of dual-duct air conditioners, as shown in fig. 5, which include an obtaining module 201, a judging module 202 and a control module 203.
The obtaining module 201 is configured to obtain a target temperature Ts and a target relative humidity φ s set by a user, and obtain an indoor environment temperature Tin, an outdoor environment temperature Tout, and an indoor relative humidity φ in real time.
The judging module 202 is used for judging whether the dual-air-duct air conditioner meets a th parameter condition required by entering a dehumidification mode of an ultra-low sensible heat and high latent heat load area, judging whether the dual-air-duct air conditioner meets a second parameter condition required by entering a dehumidification mode of a low sensible heat and high latent heat load area, and judging whether the dual-air-duct air conditioner meets a third parameter condition required by entering a middle and high sensible heat load area mode, wherein the th parameter condition is that a target temperature difference E between a target temperature Ts and an indoor environment temperature Tin is less than or equal to a -th preset temperature difference E1, meanwhile, the indoor relative humidity phi is greater than or equal to a -th preset relative humidity T1 or a difference delta phi 865s between the indoor relative humidity phi and a target relative humidity 865s is greater than or equal to a preset relative humidity phi 2, the second parameter condition is that a target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than or equal to a preset relative humidity -a preset temperature difference E1 and less than or equal to a second preset temperature E2, meanwhile, the indoor relative humidity is greater than or equal to a preset temperature difference T1 or equal to a preset temperature difference T2, the target temperature difference T635-T2, the outdoor temperature difference T is greater than or equal to a preset temperature difference T24-T25, and the target temperature difference T24-T25, and the outdoor temperature difference T24 is greater than or equal to a preset temperature phi 24, and equal to a preset temperature difference Tophi 24-25, and the target temperature difference Tophi 24-25 + 3625 + 25.
The control module 203 is configured to control the compressors of the dual-air-conditioning to operate at a low frequency, control the upper fan to operate at a low wind gear, and control the lower fan to operate at a lowest rotational speed at which the fans operate reliably when it is determined that the dual-air-conditioning needs to enter a dehumidification mode in an ultra-low sensible heat and high latent heat load region; the system comprises a double-air-channel air conditioner, an upper fan, a lower fan, a control module and a control module, wherein the double-air-channel air conditioner is used for controlling the compressor of the double-air-channel air conditioner to operate at low frequency and controlling the upper fan and the lower fan to operate at a low wind gear when judging that the double-air-channel air conditioner needs to enter a dehumidification mode of a low sensible heat and; and the air conditioner is used for controlling the upper fan and the lower fan to operate at a wind speed gear set by a user when the double-air-channel air conditioner is judged to need to enter a mode of a middle and high sensible heat load area.
Therefore, by adopting the dehumidification system of the dual-air-channel air conditioner provided by the embodiment of the invention, the target temperature Ts and the target relative humidity phi set by a user are obtained through the obtaining module 201, the indoor ambient temperature Tin, the outdoor ambient temperature Tout and the indoor relative humidity phi are obtained in real time, the judgment module 202 judges whether the air conditioner meets the parameter conditions of entering the dehumidification mode of the ultra-low sensible heat high latent heat load area, the dehumidification mode of the medium and high sensible heat load area, and the control module 203 controls the rotating speeds of the upper fan and the lower fan in a certain dehumidification mode to change the sensible heat component and the latent heat component of the air conditioner, so that the dehumidification mode of the ultra-low sensible heat high latent heat load area, the dehumidification mode of the medium and high sensible heat load area are switched with each other, the coverage area of the load point of the air conditioner product is improved, particularly, when the dual-air conditioner operates in the ultra-low sensible heat high latent heat load area, the dehumidification mode is controlled to operate reliably, the sensible heat high sensible heat load area, the sensible heat output of the air conditioner is reduced, the indoor temperature is reduced, and the indoor temperature is reduced.
Based on the above embodiment, in order to adapt to the temperature change of the evaporator and make the dehumidification capability of the air conditioner more reliable and energy-saving in consideration of the influence of the rotating speed of the indoor fan on the temperature of the evaporator, the following functions are added to the settings of the acquisition module 201, the judgment module 202 and the control module 203:
in the operation process of the dual-air-duct air conditioner in a dehumidification mode of an ultralow sensible heat and high latent heat load area, in order to realize the control of the rotating speed R of the upper fan and the rotating speed R of the lower fan, the acquisition module 201 is further used for acquiring the temperature Te _ up of the upper evaporator 3, the temperature Te _ down of the lower evaporator 4 and the dew point temperature TL in real time. The judging module 202 is further configured to judge whether the upper fan meets a fourth parameter condition required for keeping the rotation speed unchanged, judge whether the upper fan meets a fifth parameter condition required for reducing the rotation speed, judge whether the upper fan meets a sixth parameter condition required for increasing the rotation speed, judge whether the lower fan meets a seventh parameter condition required for keeping the rotation speed unchanged, and judge whether the lower fan meets an eighth parameter condition required for increasing the rotation speed; the fourth parameter condition is that after the dual-air-duct air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is less than or equal to the target relative humidity phi s, or the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator 3 is within a preset threshold range, namely, the difference delta T is greater than or equal to T2 and less than or equal to T1; the fifth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference value delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator 3 is less than T2; the sixth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference value delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator 3 is greater than T1; the seventh parameter condition is that the temperature Te _ down of the lower evaporator 4 is in a preset threshold range after the double-air-channel air conditioner operates for t1 time period in a dehumidification mode of an ultralow sensible heat and high latent heat load area, namely Te _ down2 is more than Te _ down which is more than Te _ down 1; the eighth parameter condition is that the temperature Te _ down of the lower evaporator 4 is less than or equal to Te _ down1 after the dual-air-channel air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for t1 time period. The control module 203 is further configured to control the rotation speed of the upper fan to remain unchanged when the parameter condition is determined to be the fourth parameter condition, control the rotation speed of the upper fan to decrease by Δ R when the parameter condition is determined to be the fifth parameter condition, control the rotation speed of the upper fan to increase by Δ R when the parameter condition is determined to be the sixth parameter condition, control the rotation speed of the lower fan to remain unchanged when the parameter condition is determined to be the seventh parameter condition, and control the rotation speed of the lower fan to increase by Δ R when the parameter condition is determined to be the eighth parameter condition.
In the operation process of the dual-air-duct air conditioner in a dehumidification mode of a low sensible heat and high latent heat load area, in order to realize the control of the rotating speed R of the upper fan and the rotating speed R of the lower fan, the acquisition module 201 is further used for acquiring the temperature Te _ up of the upper evaporator 3, the temperature Te _ down of the lower evaporator 4 and the dew point temperature TL in real time. The determining module 202 is further configured to determine whether the upper fan meets a fourth parameter condition required for maintaining the rotation speed unchanged, determine whether the upper fan meets a fifth parameter condition required for reducing the rotation speed, determine whether the upper fan meets a sixth parameter condition required for increasing the rotation speed, determine whether the lower fan meets a seventh parameter condition required for maintaining the rotation speed unchanged, determine whether the lower fan meets an eighth parameter condition required for reducing the rotation speed, and determine whether the lower fan meets a ninth parameter condition required for increasing the rotation speed; the fourth parameter condition is that after the dual-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for T1 time period, the indoor relative humidity phi is less than or equal to a target relative humidity phi s, or the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator 3 is within a preset threshold range, namely, the difference delta T is greater than or equal to T2 and less than or equal to T1; the fifth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator 3 is less than T2; the sixth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference value delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator 3 is greater than T1; the seventh parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is less than or equal to the target relative humidity phi s, or the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ down of the lower evaporator 4 is within a preset threshold range, namely, the delta T is more than or equal to T2 and less than or equal to T1; the eighth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference value delta T between the dew-point temperature TL and the temperature Te _ down of the lower evaporator 4 is less than T2; and the ninth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference value delta T between the dew-point temperature TL and the temperature Te _ down of the lower evaporator 4 is greater than T1. The control module 203 is further configured to control the rotation speed of the upper fan to remain unchanged when the parameter condition is determined to be the fourth parameter condition, control the rotation speed of the upper fan to decrease Δ R when the parameter condition is determined to be the fifth parameter condition, control the rotation speed of the upper fan to increase Δ R when the parameter condition is determined to be the sixth parameter condition, control the rotation speed of the lower fan to remain unchanged when the parameter condition is determined to be the seventh parameter condition, control the rotation speed of the lower fan to decrease Δ R when the parameter condition is determined to be the eighth parameter condition, and control the rotation speed of the lower fan to increase Δ R when the parameter condition is determined to be the ninth parameter condition.
Wherein, T1 is more than or equal to 20 ℃ and more than or equal to T2 and more than or equal to 0 ℃, T1 is more than or equal to 0.5min, Te _ down2 is more than or equal to Te _ down1 and more than or equal to-1 ℃, delta R is more than or equal to 1rpm, the upper limit value of R is the low wind gear rotating speed of the upper fan, the lower limit value of R is the lowest rotating speed of the upper fan for reliable operation, the upper limit value of R is the low wind gear rotating speed of the lower fan, and the lower limit value of R is the lowest rotating speed of the lower fan for reliable operation.
For example, in order to prevent the indoor temperature from being too low, the upper air duct 1 is provided with an upper electric heater 11, and the lower air duct 2 is provided with a lower electric heater 12. Accordingly, the settings of the judging module 202 and the control module 203 also have the following functions:
the judging module 202 is further configured to judge whether the upper electric heater 11 and the lower electric heater 12 meet a tenth parameter condition required for turning on, where the tenth parameter condition is that a target temperature difference E is less than or equal to a third preset temperature difference E3, and E3 is less than or equal to-1 ℃.
Based on the application of the dehumidification system of the dual-duct air conditioner in the dual-duct air conditioner, an embodiment of the present invention provides dual-duct air conditioners, which include the dehumidification system of the dual-duct air conditioner described in the above items, and since the dual-duct air conditioner includes the dehumidification system described above, the dual-duct air conditioner has all the beneficial effects of the dehumidification system described above, and no statement is made here to .
As shown in fig. 3, the indoor unit of the dual air-conditioner further includes a humidity sensor for detecting indoor relative humidity, a temperature sensor for detecting indoor ambient temperature, a second temperature sensor 5 for detecting temperature of the upper evaporator 3, and a third temperature sensor 6 for detecting temperature of the lower evaporator 4, wherein the humidity sensor, the temperature sensor, the second temperature sensor 5, and the third temperature sensor 6 are respectively electrically connected to the obtaining module 201, a separation plate 7 is disposed between the upper air duct 1 and the lower air duct 2 to prevent wind cross between the two air ducts, a total inlet of the upper evaporator 3 and a total inlet of the lower evaporator 4 are respectively connected to a total splitter 8, the upper evaporator 3 includes 1 or more than 1 branches, and when the upper evaporator 3 includes 1 or more than 1 branch, a branch inlet of the upper evaporator 3 is provided with an upper splitter 9, the second temperature sensor 5 is disposed at a middle position of branches of the upper evaporator 3, the lower evaporator 4 includes 1 or more than 1 branch, and when the lower evaporator includes 3 more than 1 branch inlet, and when the lower evaporator 4 includes 3 includes more than 10 lower branch inlet of the lower evaporator 4, and the third temperature sensor 6 is disposed at a lower branch inlet of the lower evaporator 35.
Illustratively, the upper fan is preferably a centrifugal fan which has the characteristics of long air supply distance and large noise; the lower fan is preferably a cross-flow fan which has the characteristics of short air supply distance and low noise.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
- The dehumidification method of the dual-air-channel air conditioner is characterized in that an indoor unit of the dual-air-channel air conditioner comprises an upper air channel and a lower air channel, an upper fan and an upper evaporator are arranged on the upper air channel, and a lower fan and a lower evaporator are arranged on the lower air channel, and comprises the following steps:after the double-air-duct air conditioner receives a dehumidification instruction or operates in a refrigeration mode, acquiring a target temperature Ts and a target relative humidity phi set by a user, and acquiring an indoor environment temperature Tin, an outdoor environment temperature Tout and an indoor relative humidity phi in real time;judging whether the target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is less than or equal to th preset temperature difference E1, and simultaneously judging whether the indoor relative humidity phi is greater than or equal to th preset relative humidity phi 1 or the difference value delta phi between the indoor relative humidity phi and the target relative humidity phi s is greater than or equal to preset relative humidity phi 2;if the target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is less than or equal to the th preset temperature difference E1, and the indoor relative humidity phi is greater than or equal to the preset relative humidity phi 1 or the difference value delta phi between the indoor relative humidity phi and the target relative humidity phi s is greater than or equal to the preset relative humidity difference phi 2, the double-air-duct air conditioner enters the ultra-low sensible heat high latent heat load area dehumidification mode;when the double-air-channel air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area, controlling a compressor of the double-air-channel air conditioner to operate at a low frequency, controlling the upper fan to operate at a low wind gear, and controlling the lower fan to operate at the lowest rotating speed at which the fans can operate reliably;judging whether a target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than th preset temperature difference E1 and less than or equal to second preset temperature difference E2, and simultaneously judging whether the indoor relative humidity phi is greater than or equal to preset relative humidity phi 1 or the difference value delta phi between the indoor relative humidity phi and the target relative humidity phi s is greater than or equal to preset relative humidity phi 2;if the target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than th preset temperature difference E1 and less than or equal to second preset temperature difference E2, and meanwhile, the indoor relative humidity phi is greater than or equal to preset relative humidity phi 1 or the difference value delta phi between the indoor relative humidity phi and the target relative humidity phi s is greater than or equal to preset relative humidity phi 2, the double-air-duct air conditioner enters a dehumidification mode of a low sensible heat high latent heat load area;when the double-air-channel air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area, controlling a compressor of the double-air-channel air conditioner to operate at a low frequency, and controlling the upper fan and the lower fan to operate at a low wind gear;judging whether a target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than a second preset temperature difference E2 or not, and the outdoor environment temperature Tout is greater than or equal to the outdoor preset temperature Tout 1;if the target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than a second preset temperature difference E2, and the outdoor environment temperature Tout is greater than or equal to the outdoor preset temperature Tout1, the dual-air-duct air conditioner enters a dehumidification mode of a middle and high sensible heat load area;when the double-air-duct air conditioner operates in a dehumidification mode of a middle and high sensible heat load area, controlling the upper fan and the lower fan to operate at a wind speed gear set by a user;wherein E2 is more than or equal to 3 ℃ and E1 is more than or equal to-1 ℃, Tout1 is more than or equal to 24 ℃, 100 percent is more than or equal to phi 1 and more than or equal to 70 percent, and 50 percent is more than or equal to phi 2 and more than or equal to 10 percent.
- 2. The dehumidification method of kinds of double-air-duct air conditioners, as claimed in claim 1, wherein during the operation of said double-air-duct air conditioner in the dehumidification mode of ultra-low sensible heat and high latent heat load area, the rotation speed R of said upper fan is varied according to the variation of the difference Δ T between the dew-point temperature TL and the temperature Te _ up of the upper evaporator, and the rotation speed R of said lower fan is varied according to the variation of the temperature Te _ down of the lower evaporator;the control of the rotating speed R of the upper fan is specifically as follows:after the double-air-duct air conditioner is operated in a dehumidification mode of an ultralow sensible heat and high latent heat load area for a time period of T1, when indoor relative humidity phi is larger than target relative humidity phi s, if delta T is within a preset threshold range, namely T2 is not more than delta T is not more than T1, the rotating speed R (n +1) of the lower operating period of the upper fan is equal to the rotating speed R (n) of the upper operating period of the upper fan, if delta T is less than T2, the rotating speed R (n +1) of the lower operating period of the upper fan is equal to the rotating speed R (n) of the upper operating period of the upper fan minus preset gear rotating speeds delta R of the upper fan, if delta T is more than T1, the rotating speed R (n +1) of the lower operating period of the upper fan is equal to the rotating speed R (n) of the upper operating period of the upper fan, the rotating speed R (n) of the upper fan is increased by 3 preset gear rotating speeds delta R of the upper fan, and when indoor relative humidity phi or is less than target humidity s, the rotating speed R (n) of the upper fan is equal to (R ) of the upper fan operating period (n);the double-air-duct air conditioner detects times of indoor environment temperature Tin, indoor relative humidity phi and temperature Te _ up of an upper evaporator at the time of T2 operation in an ultra-low sensible heat high latent heat load area dehumidification mode, automatically corrects according to an indoor environment temperature-indoor relative humidity-dew point temperature comparison table in a system to obtain new dew point temperature TL, calculates delta T and further confirms the new rotating speed of an upper fan;the control of the rotating speed r of the lower fan is specifically as follows:after the double-air-duct air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for a time period of t1, when the temperature Te _ down of the lower evaporator is within a preset threshold range, namely Te _ down2 is more than Te _ down and more than Te _ down1, the rotating speed r (n +1) of the lower operating period of the lower fan is equal to the rotating speed r (n) of the upper operating period of the lower fan, and when the temperature Te _ down of the lower evaporator is less than or equal to Te _ down1, the rotating speed r (n +1) of the lower operating period of the lower fan is equal to the rotating speed r (n) of the upper operating period of the lower fan, and preset gear rotating speeds delta r of the upper fan are increased;the double-air-channel air conditioner detects the temperature Te _ down of the lower evaporator for times every t2 time in a dehumidification mode of an ultralow sensible heat and high latent heat load area, and further continuously confirms the rotating speed of a new lower fan;wherein, T1 is more than or equal to 20 ℃ and more than or equal to T2 and more than or equal to 0 ℃, T1 and more than or equal to 0.5min, T2 and more than or equal to 0.5min, Te _ Down2 is more than or equal to Te _ Down1 and more than or equal to-1 ℃, delta R and more than or equal to 1rpm, the upper limit value of R is the low wind gear rotating speed of the upper fan, the lower limit value of R is the lowest rotating speed of the upper fan in reliable operation, the upper limit value of R is the low wind gear rotating speed of the lower fan, and the lower limit value of R is the lowest rotating speed of the lower fan in reliable operation.
- 3. The dehumidification method of kinds of air conditioners, as claimed in claim 1, wherein during the operation of said air conditioner in dehumidification mode of low sensible heat and high latent heat load area, the rotation speed R of said upper fan is varied according to the variation of the difference DeltaT between the dew point temperature TL and the temperature Te _ up of the upper evaporator, and the rotation speed R of said lower fan is varied according to the variation of the difference DeltaT between the dew point temperature TL and the temperature Te _ down of the lower evaporator;the control of the rotating speed R of the upper fan is specifically as follows:after the double-air-duct air conditioner is operated in a dehumidification mode of a low sensible heat high latent heat load area for a time period of T1, when indoor relative humidity phi is larger than target relative humidity phi s, if delta T is within a preset threshold range, namely T2 is not smaller than delta T is not smaller than T1, the rotating speed R (n +1) of the lower operating period of the upper fan is equal to the rotating speed R (n) of the upper operating period of the upper fan, if delta T is smaller than T2, the rotating speed R (n +1) of the lower operating period of the upper fan is equal to the rotating speed R (n) of the upper operating period of the upper fan minus preset gear rotating speeds delta R of the upper fan, if delta T is larger than T1, the rotating speed R (n +1) of the lower operating period of the upper fan is equal to the rotating speed R (n) of the upper operating period of the upper fan, the rotating speed R (n) of the upper fan is increased by preset gear rotating speeds delta R of the upper fan, and when indoor relative humidity phi or smaller than T1, the rotating speed R (n) of the upper fan is equal to the upper operating period of the upper fan () of the upper fan (;the double-air-duct air conditioner detects times of indoor environment temperature Tin, indoor relative humidity phi and temperature Te _ up of an upper evaporator at the time of T2 operation in an ultra-low sensible heat high latent heat load area dehumidification mode, automatically corrects according to an indoor environment temperature-indoor relative humidity-dew point temperature comparison table in a system to obtain new dew point temperature TL, calculates delta T and further confirms the new rotating speed of an upper fan;the control of the rotating speed r of the lower fan is specifically as follows:after the double-air-duct air conditioner is operated in a dehumidification mode of a low sensible heat high latent heat load area for a time period of T1, when indoor relative humidity phi is larger than target relative humidity phi s, if delta T is within a preset threshold range, namely T2 is not smaller than delta T is not smaller than T1, the rotating speed r (n +1) of the lower operating period of the lower fan is equal to the rotating speed r (n) of the upper operating period of the upper fan, if delta T is smaller than T2, the rotating speed r (n +1) of the lower operating period of the upper fan is equal to the rotating speed r (n) of the upper operating period of the upper fan minus preset gear rotating speeds delta r of the upper fan, if delta T is larger than T1, the rotating speed r (n +1) of the lower operating period of the upper fan is equal to the rotating speed r (n) of the upper operating period of the upper fan, the rotating speed r (n) of the upper fan is increased by preset gear rotating speed delta r of the upper fan, and when the indoor relative humidity phi or is smaller than the target humidity s, the rotating speed r (n) of the lower operating period is equal to (84);the double-air-duct air conditioner detects the indoor environment temperature Tin, the indoor relative humidity phi and the temperature Te _ down of the lower evaporator for times every T2 time in a dehumidification mode of an ultralow sensible heat high latent heat load area, automatically corrects according to an indoor environment temperature-indoor relative humidity-dew point temperature comparison table in the system to obtain a new dew point temperature TL, calculates delta T and further confirms the new rotating speed of the lower fan;wherein, T1 is more than or equal to 20 ℃ and more than or equal to T2 and more than or equal to 0 ℃, T1 and more than or equal to 0.5min, T2 and more than or equal to 0.5min, Te _ Down2 is more than or equal to Te _ Down1 and more than or equal to-1 ℃, delta R and more than or equal to 1rpm, the upper limit value of R is the low wind gear rotating speed of the upper fan, the lower limit value of R is the lowest rotating speed of the upper fan in reliable operation, the upper limit value of R is the low wind gear rotating speed of the lower fan, and the lower limit value of R is the lowest rotating speed of the lower fan in reliable operation.
- 4. The method of dehumidifying the kinds of dual air-conditioners as claimed in any one of claims 1 to 3 and , wherein an upper electric heater is installed on the upper air duct, and a lower electric heater is installed on the lower air duct, and or two of the upper electric heater and the lower electric heater are turned on if a target temperature difference E is less than or equal to a third preset temperature difference E3 during the continuous operation of the dual air-conditioner in the ultra-low sensible heat high latent heat load dehumidifying mode, wherein E3 is ≦ 1 ℃.
- 5. The dehumidification method of kinds of double-air-duct air conditioners as claimed in claim 1, wherein the frequency F of the compressor of the double-air-duct air conditioner is positively and strongly correlated to the target temperature difference E, the larger the value of E, the higher the value of F, when the double-air-duct air conditioner operates in the ultra-low sensible heat high latent heat load zone dehumidification mode, the minimum value of the frequency F of the compressor of the double-air-duct air conditioner is Fmin, and the maximum value thereof is N1% ＊ Fmax, when the double-air-duct air conditioner operates in the low sensible heat high latent heat load zone dehumidification mode, the minimum value of the frequency F of the compressor of the double-air-duct air conditioner is Fmin, and the maximum value thereof is N2% ＊ Fmax, wherein N1 < N2 ≤ 50, N1% ＊ Fmax, and N2% ＊ Fmax both belong to a low frequency interval of the compressor, Fmin is the minimum frequency of reliable operation of the compressor, and Fmax is the maximum.
- 6, dehumidification system of double-air-channel air conditioner, characterized in that, the indoor set of the double-air-channel air conditioner includes upper air channel and lower air channel, the upper air channel is equipped with upper fan and upper evaporator, the lower air channel is equipped with lower fan and lower evaporator, the dehumidification system of the double-air-channel air conditioner includes:the acquisition module is used for acquiring a target temperature Ts and a target relative humidity phi s set by a user and acquiring an indoor environment temperature Tin, an outdoor environment temperature Tout and an indoor relative humidity phi in real time;the judging module is used for judging whether the double-air-duct air conditioner meets a parameter condition required by entering a dehumidification mode of an ultra-low sensible heat and high latent heat load area, judging whether the double-air-duct air conditioner meets a second parameter condition required by entering the dehumidification mode of a low sensible heat and high latent heat load area, and judging whether the double-air-duct air conditioner meets a third parameter condition required by entering a dehumidification mode of a medium sensible heat and high sensible heat load area, wherein the parameter condition is that a target temperature difference E between a target temperature Ts and an indoor environment temperature Tin is less than or equal to a preset temperature difference E1, meanwhile, the indoor relative humidity is greater than or equal to a preset relative humidity phi 1 or a difference delta phi 865s between the indoor relative humidity phi 865s and a target relative humidity phi 865s is greater than or equal to a preset relative humidity phi 2, the second parameter condition is that a target temperature difference E between the target temperature Ts and the indoor environment temperature Tin is greater than or equal to a preset relative humidity phi , the target temperature difference E is greater than or equal to a second preset temperature difference E2, and is greater than or equal to a preset temperature difference T635, the outdoor temperature difference T is greater than or equal to a preset temperature difference T2, the target temperature T25 ℃ and the outdoor temperature difference T25, wherein the target temperature difference T is greater than or equal to a preset temperature T24 percent Tophi 24 percent, the target temperature difference T25, the outdoor temperature difference T25, the target temperature difference T24 is greater than or;the control module is used for controlling the compressor of the double-air-channel air conditioner to operate at a low frequency, controlling the upper fan to operate at a low wind gear and controlling the lower fan to operate at the lowest rotating speed at which the fans can operate reliably when the double-air-channel air conditioner is judged to need to enter a dehumidification mode of an ultralow sensible heat and high latent heat load area; the system comprises a double-air-channel air conditioner, an upper fan, a lower fan, a control module and a control module, wherein the double-air-channel air conditioner is used for controlling the compressor of the double-air-channel air conditioner to operate at low frequency and controlling the upper fan and the lower fan to operate at a low wind gear when judging that the double-air-channel air conditioner needs to enter a dehumidification mode of a low sensible heat and; and the control unit is used for controlling the upper fan and the lower fan to operate at a wind speed gear set by a user when the double-air-channel air conditioner is judged to need to enter a dehumidification mode of a middle and high sensible heat load area.
- 7. The dehumidification system of kind of double-air-conditioner as recited in claim 6, wherein,the acquisition module is also used for acquiring the temperature Te _ up of the upper evaporator, the temperature Te _ down of the lower evaporator and the dew point temperature TL in real time;the judging module is further used for judging whether the upper fan meets a fourth parameter condition required for keeping the rotating speed unchanged, judging whether the upper fan meets a fifth parameter condition required for reducing the rotating speed, judging whether the upper fan meets a sixth parameter condition required for increasing the rotating speed, judging whether the lower fan meets a seventh parameter condition required for keeping the rotating speed unchanged, and judging whether the lower fan meets an eighth parameter condition required for increasing the rotating speed; the fourth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is less than or equal to a target relative humidity phi s, or the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is within a preset threshold range, namely, the difference delta T is greater than or equal to T2 and less than or equal to T1; the fifth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is less than T2; the sixth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference value delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is greater than T1; the seventh parameter condition is that after the double-air-channel air conditioner operates in a dehumidification mode of an ultralow sensible heat and high latent heat load area for t1 time period, the temperature Te _ down of the lower evaporator is in a preset threshold range, namely Te _ down2 is more than Te _ down and more than Te _ down 1; the eighth parameter condition is that the temperature Te _ down of the lower evaporator is less than or equal to Te _ down1 after the double-air-channel air conditioner operates for t1 time period in a dehumidification mode of a low sensible heat and high latent heat load area;the control module is further used for controlling the rotating speed of the upper fan to keep unchanged when the parameter condition is judged to be a fourth parameter condition, controlling the rotating speed of the upper fan to reduce by delta R when the parameter condition is judged to be a fifth parameter condition, controlling the rotating speed of the upper fan to increase by delta R when the parameter condition is judged to be a sixth parameter condition, controlling the rotating speed of the lower fan to keep unchanged when the parameter condition is judged to be a seventh parameter condition, and controlling the rotating speed of the lower fan to increase by delta R when the parameter condition is judged to be an eighth parameter condition;wherein, T1 is more than or equal to 20 ℃ and more than or equal to T2 and more than or equal to 0 ℃, T1 is more than or equal to 0.5min, Te _ down2 is more than or equal to Te _ down1 and more than or equal to-1 ℃, delta R is more than or equal to 1rpm, the upper limit value of R is the low wind gear rotating speed of the upper fan, the lower limit value of R is the lowest rotating speed of the upper fan for reliable operation, the upper limit value of R is the low wind gear rotating speed of the lower fan, and the lower limit value of R is the lowest rotating speed of the lower fan for reliable operation.
- 8. The dehumidification system of kind of double-air-conditioner as recited in claim 6, wherein,the acquisition module is also used for acquiring the temperature Te _ up of the upper evaporator, the temperature Te _ down of the lower evaporator and the dew point temperature TL in real time;the judging module is further used for judging whether the upper fan meets a fourth parameter condition required for keeping the rotating speed unchanged, judging whether the upper fan meets a fifth parameter condition required for reducing the rotating speed, judging whether the upper fan meets a sixth parameter condition required for increasing the rotating speed, judging whether the lower fan meets a seventh parameter condition required for keeping the rotating speed unchanged, judging whether the lower fan meets an eighth parameter condition required for reducing the rotating speed, and judging whether the lower fan meets a ninth parameter condition required for increasing the rotating speed; the fourth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for T1 time period, the indoor relative humidity phi is less than or equal to a target relative humidity phi s, or the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is within a preset threshold range, namely, the difference delta T between the T2 and the T1 is greater than or equal to; the fifth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is less than T2; the sixth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ up of the upper evaporator is greater than T1; the seventh parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is less than or equal to the target relative humidity phi s, or the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference delta T between the dew point temperature TL and the temperature Te _ down of the lower evaporator is within a preset threshold range, namely, the delta T is more than or equal to T2 and less than or equal to T1; the eighth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference value delta T between the dew-point temperature TL and the temperature Te _ down of the lower evaporator is less than T2; the ninth parameter condition is that after the double-air-duct air conditioner operates in a dehumidification mode of a low sensible heat and high latent heat load area for a time period of T1, the indoor relative humidity phi is greater than the target relative humidity phi s, and the difference value delta T between the dew point temperature TL and the temperature Te _ down of the lower evaporator is greater than T1;the control module is further used for controlling the rotating speed of the upper fan to keep unchanged when the parameter condition is judged to be a fourth parameter condition, controlling the rotating speed of the upper fan to reduce by delta R when the parameter condition is judged to be a fifth parameter condition, controlling the rotating speed of the upper fan to increase by delta R when the parameter condition is judged to be a sixth parameter condition, controlling the rotating speed of the lower fan to keep unchanged when the parameter condition is judged to be a seventh parameter condition, controlling the rotating speed of the lower fan to reduce by delta R when the parameter condition is judged to be an eighth parameter condition, and controlling the rotating speed of the lower fan to increase by delta R when the parameter condition is judged to be a ninth parameter condition;wherein, T1 is more than or equal to 20 ℃ and more than or equal to T2 and more than or equal to 0 ℃, T1 is more than or equal to 0.5min, Te _ down2 is more than or equal to Te _ down1 and more than or equal to-1 ℃, delta R is more than or equal to 1rpm, the upper limit value of R is the low wind gear rotating speed of the upper fan, the lower limit value of R is the lowest rotating speed of the upper fan for reliable operation, the upper limit value of R is the low wind gear rotating speed of the lower fan, and the lower limit value of R is the lowest rotating speed of the lower fan for reliable operation.
- 9. The system of kinds of dual air conditioners as claimed in any one of claims 6 to 8 and , wherein the upper air duct is provided with an upper electric heater, and the lower air duct is provided with a lower electric heater;the judging module is further used for judging whether the upper electric heater and the lower electric heater meet a tenth parameter condition required by starting; wherein the tenth parameter condition is that the target temperature difference E is less than or equal to a third preset temperature difference E3, and E3 is less than or equal to minus 1 ℃;the control module is further configured to control or two of the upper electric heater and the lower electric heater to be turned on when the parameter condition is determined to be a tenth parameter condition.
- 10, a dual air duct air conditioner, comprising the dehumidification system of the dual air duct air conditioner as claimed in any of claims 5 to 7, wherein the indoor unit of the dual air duct air conditioner further comprises a humidity sensor for detecting the relative humidity of the indoor, a th temperature sensor for detecting the ambient temperature of the indoor, a second temperature sensor for detecting the temperature of the upper evaporator, and a third temperature sensor for detecting the temperature of the lower evaporator, wherein the humidity sensor, the th temperature sensor, the second temperature sensor, and the third temperature sensor are respectively electrically connected to the acquisition module, a separation plate is disposed between the upper air duct and the lower air duct, a total inlet of the upper evaporator and a total inlet of the lower evaporator are respectively connected to the total flow divider, the upper evaporator comprises 1 or more branches, and when the upper evaporator comprises 1 or more branches, the branch inlets of the upper evaporator are provided with upper flow dividers, the second temperature sensor is disposed at a middle position of of the upper evaporator, when the lower evaporator comprises 1 or more branches, and when the lower evaporator comprises 1 or more branches, the lower evaporator is provided with upper flow dividers, and when the lower flow dividers are disposed at a lower flow dividers, the lower flow dividers are provided with the lower flow dividers, and the lower flow dividers are disposed at a lower flow dividers.
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Address after: No.1 Haixin Road, Nancun Town, Pingdu City, Qingdao City, Shandong Province Patentee after: Hisense Air Conditioning Co.,Ltd. Country or region after: China Address before: No. 151, Zhuzhou Road, Laoshan District, Qingdao, Shandong Patentee before: HISENSE (SHANDONG) AIR-CONDITIONING Co.,Ltd. Country or region before: China |