CN110500667A - A kind of multi-joint indoor unit noise-reduction method, air-conditioning system and storage medium - Google Patents
A kind of multi-joint indoor unit noise-reduction method, air-conditioning system and storage medium Download PDFInfo
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- CN110500667A CN110500667A CN201810480073.3A CN201810480073A CN110500667A CN 110500667 A CN110500667 A CN 110500667A CN 201810480073 A CN201810480073 A CN 201810480073A CN 110500667 A CN110500667 A CN 110500667A
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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
- F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
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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
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
- F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
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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
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/24—Means for preventing or suppressing noise
- F24F2013/247—Active noise-suppression
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention discloses a kind of multi-joint indoor unit noise-reduction method, air-conditioning system and storage mediums, which comprises when multi-joint indoor unit carries out refrigerating operaton, returns to indoor unit outlet by the extra refrigerant of Flux Valve Control, then be transmitted to outdoor unit；When multi-joint indoor unit carries out heating operation, refrigerant is recycled by electronic expansion valve controls indoor heat exchanger, then indoor unit outlet is returned to by the extra refrigerant of Flux Valve Control, then be transmitted to outdoor unit.The present invention reduces indoor-unit cooling-medium by flow adjusting and flows the noise to be formed, to not transmit noise to indoor environment by air duct, also the drawbacks of solving indoor heat exchanger deposition refrigerant when heating, improves the efficiency of system refrigerant operation, while improving the utilization rate of system oil.
Description
Technical field
The present invention relates to air conditioning applications technical field more particularly to a kind of multi-joint indoor unit noise-reduction method, air-conditioning system and
Storage medium.
Background technique
Currently, one of maximum difficult point of split-type air conditioner indoor set is exactly noise problem, user is most sensitivity to noise, point
Body formula indoor unit noise source have air-supply tap reflecting surface caused by tremble sound, air-supply because wind speed variation caused by wind disturbance
Air circulation jet sound caused by sound, air-supply change because of return air inlet or the resistances such as air outlet size variation or dust accumulation.
For multi-joint indoor unit, causes room noise and be difficult to solve the problems, such as to be refrigerant after shunting capillary
Jet stream sound passed out by indoor heat exchanger air-supply, and causing the source of this sound is outdoor unit output phase to interior
Machine demand is excessive, transmits noise to indoor environment by air duct, causes noise pollution.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
The technical problem to be solved in the present invention is that the present invention provides a kind of multi-joint indoor unit for prior art defect
Noise-reduction method, air-conditioning system and storage medium, it is intended to indoor-unit cooling-medium is reduced by flow adjusting and flows the noise to be formed, from
Indoor environment is arrived without transmitting noise by air duct, the drawbacks of indoor heat exchanger deposits refrigerant when also solving heating, improves and is
The efficiency that refrigerant of uniting is run, while improving the utilization rate of system oil.
The technical proposal for solving the technical problem of the invention is as follows:
A kind of multi-joint indoor unit noise-reduction method, wherein the multi-joint indoor unit noise-reduction method includes:
When multi-joint indoor unit carries out refrigerating operaton, indoor unit outlet is returned to by the extra refrigerant of Flux Valve Control,
It is transmitted to outdoor unit again；
When multi-joint indoor unit carries out heating operation, refrigerant is recycled by electronic expansion valve controls indoor heat exchanger, then lead to
Overcurrent adjustable valve controls extra refrigerant and returns to indoor unit outlet, then is transmitted to outdoor unit.
The multi-joint indoor unit noise-reduction method, wherein it includes multi-joint interior that the multi-joint indoor unit, which carries out refrigerating operaton,
Machine is all turned on to be opened with multi-joint indoor unit part.
The multi-joint indoor unit noise-reduction method, wherein it is described when multi-joint indoor unit carries out refrigerating operaton, pass through flow
Regulating valve controls extra refrigerant and returns to indoor unit outlet, then is transmitted to outdoor unit and specifically includes:
Refrigerant is transferred to indoor from check valve in liquid form；
When multi-joint indoor unit is all turned on, control electric expansion valve, which fully enters, adjusts aperture state, and solenoid valve is all turned on,
Flow control valve is all closed；
When multi-joint indoor unit part is opened, controls the corresponding electric expansion valve of indoor unit in the open state and enter adjusting and open
Degree state, other electric expansion valves are closed, and solenoid valve is all turned on, the corresponding flow control valve of indoor unit in the open state
Flow is carried out according to temperature gap and adjusts unlatching, other flow control valves are closed.
The multi-joint indoor unit noise-reduction method, wherein under refrigerating state, when multi-joint indoor unit all works, control
Solenoid valve and flow control valve do not work；When multi-joint indoor unit part refrigerating operaton, solenoid valve does not work, and flow is adjusted
Valve plays shunting function, and excessive refrigerant returns to indoor unit outlet by flow control valve, returns outdoor unit.
The multi-joint indoor unit noise-reduction method, wherein it includes multi-joint interior that the multi-joint indoor unit, which carries out heating operation,
Machine is all turned on to be opened with multi-joint indoor unit part.
The multi-joint indoor unit noise-reduction method, wherein it is described when multi-joint indoor unit carries out heating operation, pass through electronics
Expansion valve control indoor heat exchanger recycles refrigerant, then returns to indoor unit outlet by the extra refrigerant of Flux Valve Control
Pipe, then be transmitted to outdoor unit and specifically include:
Refrigerant is transferred to indoor from air valve in the form of a vapor；
When multi-joint indoor unit is all turned on, control electric expansion valve, which fully enters, adjusts aperture state, and solenoid valve is all turned on,
Flow control valve is all closed；
When multi-joint indoor unit part, which is opened, to be made, control electric expansion valve fully enters the aperture state that adjusts, in the open state
The corresponding solenoid valve of indoor unit open, other solenoid valves are closed, the corresponding flow control valve of indoor unit in the open state
It closes, other flow control valves open predetermined aperture progress flow adjusting according to system high pressure pressure change is synchronous.
The multi-joint indoor unit noise-reduction method, wherein under heating state, when multi-joint indoor unit all works, solenoid valve
It does not work with flow control valve；When multi-joint indoor unit part heating operation, controls the indoor unit not run and does not accumulate refrigerant,
Lubricating oil deposition is emptied in idle indoor set heat exchanger, and flow adjusting, transmission are carried out by the flow control valve of unlatching
The refrigerant flow control valve through open excessive to indoor returns to indoor unit inlet tube, then sends back outdoor unit.
The multi-joint indoor unit noise-reduction method, wherein the adjusting aperture state includes a quarter aperture, half-open opens
Degree and standard-sized sheet aperture.
A kind of air-conditioning system, wherein the air-conditioning system includes the indoor unit of multiple parallel connections, and the air-conditioning system is also wrapped
It includes: memory, processor and the multi-joint indoor unit noise reduction journey that is stored on the memory and can run on the processor
Sequence realizes multi-joint indoor unit noise-reduction method as described above when the multi-joint indoor unit noise reduction program is executed by the processor
Step.
A kind of storage medium, wherein the storage medium is stored with multi-joint indoor unit noise reduction program, the multi-joint indoor unit
The step of multi-joint indoor unit noise-reduction method as described above is realized when noise reduction program is executed by processor.
The invention discloses a kind of multi-joint indoor unit noise-reduction method, air-conditioning system and storage mediums, which comprises when
When multi-joint indoor unit carries out refrigerating operaton, indoor unit outlet is returned to by the extra refrigerant of Flux Valve Control, then transmit
To outdoor unit；When multi-joint indoor unit carries out heating operation, refrigerant is recycled by electronic expansion valve controls indoor heat exchanger,
Indoor unit outlet is returned to by the extra refrigerant of Flux Valve Control again, then is transmitted to outdoor unit.The present invention passes through flow
Adjusting reduces indoor-unit cooling-medium and flows the noise to be formed, to not transmit noise to indoor environment by air duct, also solves system
Indoor heat exchanger deposits the drawbacks of refrigerant when hot, improves the efficiency of system refrigerant operation, while improving the benefit of system oil
With rate.
Detailed description of the invention
Fig. 1 is the flow chart of the preferred embodiment of the multi-joint indoor unit noise-reduction method of the present invention；
Fig. 2 is the flow chart of step S10 in the preferred embodiment of the multi-joint indoor unit noise-reduction method of the present invention；
Fig. 3 is the flow chart of step S20 in the preferred embodiment of the multi-joint indoor unit noise-reduction method of the present invention；
Fig. 4 is the control principle drawing of the preferred embodiment of the multi-joint indoor unit noise-reduction method of the present invention；
Fig. 5 is refrigerating state Flux Valve Control schematic diagram in the preferred embodiment of the multi-joint indoor unit noise-reduction method of the present invention；
Fig. 6 is that state Flux Valve Control schematic diagram is heated in the preferred embodiment of the multi-joint indoor unit noise-reduction method of the present invention；
Fig. 7 is the functional schematic block diagram of the preferred embodiment of air-conditioning system of the present invention.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer and more explicit, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and do not have to
It is of the invention in limiting.
Embodiment one
A kind of multi-joint indoor unit noise-reduction method described in present pre-ferred embodiments, as shown in Figure 1, the multi-joint indoor unit noise reduction
Method includes:
S10 returns to indoor unit outlet by the extra refrigerant of Flux Valve Control when multi-joint indoor unit carries out refrigerating operaton
Pipe, then it is transmitted to outdoor unit.
Specifically, it includes that multi-joint indoor unit is all turned on and multi-joint indoor unit portion that the multi-joint indoor unit, which carries out refrigerating operaton,
Separately open；Under refrigerating state, when multi-joint indoor unit all works, controls solenoid valve and flow control valve does not work；When more
When joining indoor unit part refrigerating operaton, solenoid valve does not work, and flow control valve plays shunting function, and excessive refrigerant passes through stream
Adjustable valve returns to indoor unit outlet, returns outdoor unit.
Detailed process is referring to Fig. 2, it is the process of step S10 in multi-joint indoor unit noise-reduction method provided by the invention
Figure.
As shown in Fig. 2, the step S10 includes:
S11, refrigerant are transferred to indoor from check valve in liquid form；
S12, when multi-joint indoor unit is all turned on, control electric expansion valve, which fully enters, adjusts aperture state, and solenoid valve is whole
It opens, flow control valve is all closed；
S13, when multi-joint indoor unit part open when, control the corresponding electric expansion valve of indoor unit in the open state and enter tune
Aperture state is saved, other electric expansion valves are closed, and solenoid valve is all turned on, the corresponding flow tune of indoor unit in the open state
It saves valve and flow adjusting unlatching is carried out according to temperature gap, other flow control valves are closed.
S20 is recycled cold when multi-joint indoor unit carries out heating operation by electronic expansion valve controls indoor heat exchanger
Matchmaker, then indoor unit outlet is returned to by the extra refrigerant of Flux Valve Control, then be transmitted to outdoor unit.
Specifically, it includes that multi-joint indoor unit is all turned on and multi-joint indoor unit portion that the multi-joint indoor unit, which carries out heating operation,
Separately open；Under heating state, when multi-joint indoor unit all works, solenoid valve and flow control valve do not work；When multi-joint interior
When the heating operation of machine part, controls the indoor unit not run and do not accumulate refrigerant, profit is emptied in idle indoor set heat exchanger
Lubricating oil deposition carries out flow adjusting by the flow control valve of unlatching, is transmitted to flow of the excessive refrigerant in indoor through opening
Regulating valve returns to indoor unit inlet tube, then sends back outdoor unit.
Detailed process is referring to Fig. 3, it is the process of step S20 in multi-joint indoor unit noise-reduction method provided by the invention
Figure.
As shown in figure 3, the step S20 includes:
S21, refrigerant are transferred to indoor from air valve in the form of a vapor；
S22, when multi-joint indoor unit is all turned on, control electric expansion valve, which fully enters, adjusts aperture state, and solenoid valve is whole
It opens, flow control valve is all closed；
S23, when multi-joint indoor unit part open make when, control electric expansion valve fully enter adjust aperture state, in open
The corresponding solenoid valve of the indoor unit of state is opened, other solenoid valves are closed, the corresponding flow tune of indoor unit in the open state
It saves valve to close, other flow control valves open predetermined aperture progress flow adjusting according to system high pressure pressure change is synchronous.
Wherein, (opening degree is adjusted the adjusting aperture state according to the actual situation, is not all of unlatching, also not
It is whole closings) it include a quarter aperture, half-open aperture and standard-sized sheet aperture.
In order to be explained further and illustrate multi-joint indoor unit noise-reduction method of the invention, below with the noise reduction of multiple indoor units
Method control principle is illustrated, as shown in Figure 4:
Corresponding explanation is carried out to each component in Fig. 4 in advance:
INV: frequency-changeable compressor；Air-conditioning system power resources, can the adjusting frequency operation of handling capacity demand；
ST: four-way reversing valve；It is adjusted for freezing, heating refrigerant flow direction；
SPH: high pressure sensor, detection system high side pressure value；
SPL: low pressure sensor, detection system low-pressure lateral pressure value；
Wherein, the EXV1: the first electric expansion valve, the EXV2: the second electric expansion valve, EXV3: third electric expansion valve；Three electronics
Expansion valve is for freezing, indoor machine during heating inlet throttle uses；
SV1: the first solenoid valve, SV2: second solenoid valve, SV3: third solenoid valve；Standard-sized sheet when three solenoid valves refrigeration, when heating
It runs indoor unit to open, does not run indoor unit closing；
UV1: first flow regulating valve, UV2: second flow regulating valve, UV3: third flow control valve；Three flow control valves are used
According to system command adjusting flow percent of pass；Temperature gap regulating flow is measured according to Tv and To temperature-sensing probe when refrigeration；System
Flow is adjusted with current system pressure value when hot；
Tv1~Tv3: flow adjusts branch temperature-sensing probe；Temperature detection is provided for Flux Valve Control；
To1~To3: indoor unit outlet temperature-sensing probe；Temperature detection is provided for Flux Valve Control.
Principles of Regulation are as follows when refrigerating operaton:
Air-conditioning system refrigerant is transferred to indoor from check valve, and refrigerant state is based on liquid at this time；
When indoor unit is all turned on, electric expansion valve EXV1~EXV3, which enters, adjusts aperture state, and solenoid valve SV1~SV3 is complete
It opens, flow control valve UV1~UV3 is completely in closed state.
When the work of indoor unit part, such as only 1 refrigerating operaton of indoor unit, electric expansion valve EXV1 enter adjusting aperture
State, and EXV2 and EXV3 is closed；Solenoid valve SV1~SV3 standard-sized sheet；Flow control valve UV1 according to temperature Tv1-To1 difference ±
Flow is carried out within the scope of 1 DEG C adjusts unlatching, and UV2 and UV3 is closed.
Wherein, refrigerating state flow control valve UV control principle drawing is as shown in figure 5, when refrigerating operaton, air-conditioning system feedback
When having part indoor unit not work, the flow control valve UV of operating unit participates in work, and simultaneously with n seconds reception Tv-To differences
Carry out aperture regulation.
Under refrigerating state, when indoor unit all works, solenoid valve SV and flow control valve UV are not acted on, and work as indoor unit
When the refrigerating operaton of part, solenoid valve SV is still without effect, but flow control valve UV1 plays shunting function, and excessive refrigerant is logical
Overcurrent adjustable valve returns to indoor unit outlet, and then returns to outdoor unit；It is few by the refrigerant for running indoor unit 1, cause cold
Matchmaker's jet stream is reduced by, to reduce refrigerant disturbance noise, is further penetrated by the refrigerant that indoor heat exchanger air-supply transfers out
Stream sound just reduces, to achieve the effect that the noise reduction that freezes.
Principles of Regulation are as follows when heating operation:
Air-conditioning system refrigerant is transferred to indoor from air valve, and refrigerant state is based on gaseous state at this time；
When indoor unit is all turned on, electric expansion valve EXV1~EXV3, which enters, adjusts aperture state, and solenoid valve SV1~SV3 is complete
It opens, flow control valve UV1~UV3 is completely in closed state.
When the work of indoor unit part, such as only 1 heating operation of indoor unit, electric expansion valve EXV1 enter adjusting aperture
State, and EXV2 and EXV3 standard-sized sheet；Solenoid valve SV1 is opened, and SV2 and SV3 is closed；Flow control valve UV1 close, and UV2 and
UV3 opens certain aperture progress flow adjusting according to system high pressure pressure change is synchronous.
Wherein, state flow control valve UV control principle drawing is heated as shown in fig. 6, when heating operation, air-conditioning system feedback
When having part indoor unit not work, the flow control valve UV of operating unit is closed, and does not have in harness indoor unit 2,3 corresponding streams
Adjustable valve UV2 and UV3 participate in work.When system high pressure SPH value is between a~b, UV2 and UV3 keep 1/4 aperture；When
When SPH value continues rising up to c and arrives d value again, UV2 and UV3 with n seconds reception SPH values and persistently open it is big, until standard-sized sheet；As system SPH
When pressure is higher than d value, UV2 and UV3 keep standard-sized sheet, and system adjusts SPH pressure in other ways；Equally, when system SPH value is from d
When dropping to c and arriving b value again, UV2 and UV3 are persistently turned down to 1/4 aperture, when system high pressure SPH value reduces between a~b, UV2
1/4 aperture is kept with UV3；Wherein, system SPH value is booting SPH pressure in a.
Under heating state, when indoor unit all works, solenoid valve SV and flow control valve UV are not acted on, and work as indoor unit
When the heating operation of part, solenoid valve SV2, SV3 are closed, and electric expansion valve EXV2, EXV3 standard-sized sheet causes the indoor unit not run not
Accumulate refrigerant, to reduce lubricating oil deposition in idle indoor set heat exchanger, also enhances system refrigerant circulation, make
Obtain refrigerant effective use；Flow control valve UV1 is not acted on, and is adjusted by the flow of UV2 and UV3, and indoor mistake is transmitted to
More refrigerants returns to indoor unit inlet tube through UV2 and UV3, so that outdoor unit is sent back, and the indoor unit 1 to work causes refrigerant to be penetrated
Stream is reduced by, to reduce refrigerant disturbance noise, the refrigerant jet stream sound further transferred out by indoor heat exchanger air-supply
It just reduces, to achieve the effect that heat noise reduction.
A kind of multi-joint indoor unit noise-reduction method of the invention reduces indoor-unit cooling-medium and flows the noise to be formed, also solves system
When hot, the drawbacks of indoor heat exchanger deposits refrigerant, the efficiency of system refrigerant operation improved, while improving the benefit of system oil
With rate.
Embodiment two
As shown in fig. 7, being based on above-mentioned multi-joint indoor unit noise-reduction method, the present invention further correspondingly provides a kind of air-conditioning system, described
Air-conditioning system includes the indoor unit of multiple parallel connections, the air-conditioning system further include: memory 20, processor 10 and is stored in described
On memory 20 and the multi-joint indoor unit noise reduction program that can be run on the processor 10, the multi-joint indoor unit noise reduction program
The step of multi-joint indoor unit noise-reduction method is realized when being executed by the processor 10；As detailed above.
Embodiment three
The present invention also provides a kind of storage mediums, wherein the storage medium is stored with multi-joint indoor unit noise reduction program, described more
The step of connection indoor unit noise reduction program realizes the multi-joint indoor unit noise-reduction method when being executed by processor；As detailed above.
In conclusion the present invention provides a kind of multi-joint indoor unit noise-reduction method, air-conditioning system and storage medium, the method
It include: that indoor unit outlet is returned to by the extra refrigerant of Flux Valve Control when multi-joint indoor unit carries out refrigerating operaton,
It is transmitted to outdoor unit again；When multi-joint indoor unit carries out heating operation, benefit is recycled by electronic expansion valve controls indoor heat exchanger
Indoor unit outlet is returned to refrigerant, then by the extra refrigerant of Flux Valve Control, then is transmitted to outdoor unit.The present invention is logical
Inflow-rate of water turbine adjusting reduces indoor-unit cooling-medium and flows the noise to be formed, thus not by air duct transmitting noise to indoor environment,
The drawbacks of solving indoor heat exchanger deposition refrigerant when heating, improves the efficiency of system refrigerant operation, while improving system lubrication
The utilization rate of oil.
Certainly, those of ordinary skill in the art will appreciate that realizing all or part of the process in above-described embodiment method,
It is that related hardware (such as processor, controller etc.) can be instructed to complete by computer program, the program can store
In a computer-readable storage medium, described program may include the process such as above-mentioned each method embodiment when being executed.
Wherein the storage medium can be memory, magnetic disk, CD etc..
It should be understood that the application of the present invention is not limited to the above for those of ordinary skills can
With improvement or transformation based on the above description, all these modifications and variations all should belong to the guarantor of appended claims of the present invention
Protect range.
Claims (10)
1. a kind of multi-joint indoor unit noise-reduction method, which is characterized in that the multi-joint indoor unit noise-reduction method includes:
When multi-joint indoor unit carries out refrigerating operaton, indoor unit outlet is returned to by the extra refrigerant of Flux Valve Control,
It is transmitted to outdoor unit again；
When multi-joint indoor unit carries out heating operation, refrigerant is recycled by electronic expansion valve controls indoor heat exchanger, then lead to
Overcurrent adjustable valve controls extra refrigerant and returns to indoor unit outlet, then is transmitted to outdoor unit.
2. multi-joint indoor unit noise-reduction method according to claim 1, which is characterized in that the multi-joint indoor unit freezes
Operation includes that multi-joint indoor unit is all turned on and the unlatching of multi-joint indoor unit part.
3. multi-joint indoor unit noise-reduction method according to claim 2, which is characterized in that described to work as multi-joint indoor unit system
When cold operation, indoor unit outlet is returned to by the extra refrigerant of Flux Valve Control, then be transmitted to outdoor unit and specifically include:
Refrigerant is transferred to indoor from check valve in liquid form；
When multi-joint indoor unit is all turned on, control electric expansion valve, which fully enters, adjusts aperture state, and solenoid valve is all turned on,
Flow control valve is all closed；
When multi-joint indoor unit part is opened, controls the corresponding electric expansion valve of indoor unit in the open state and enter adjusting and open
Degree state, other electric expansion valves are closed, and solenoid valve is all turned on, the corresponding flow control valve of indoor unit in the open state
Flow is carried out according to temperature gap and adjusts unlatching, other flow control valves are closed.
4. multi-joint indoor unit noise-reduction method according to claim 3, which is characterized in that under refrigerating state, when multi-joint interior
When machine all works, controls solenoid valve and flow control valve does not work；When multi-joint indoor unit part refrigerating operaton, solenoid valve
It does not work, flow control valve plays shunting function, and excessive refrigerant returns to indoor unit outlet by flow control valve, then returns
To outdoor unit.
5. multi-joint indoor unit noise-reduction method according to claim 1, which is characterized in that the multi-joint indoor unit is heated
Operation includes that multi-joint indoor unit is all turned on and the unlatching of multi-joint indoor unit part.
6. multi-joint indoor unit noise-reduction method according to claim 5, which is characterized in that described to work as multi-joint indoor unit system
When heat operation, refrigerant is recycled by electronic expansion valve controls indoor heat exchanger, then extra by Flux Valve Control
Refrigerant returns to indoor unit outlet, then is transmitted to outdoor unit and specifically includes:
Refrigerant is transferred to indoor from air valve in the form of a vapor；
When multi-joint indoor unit is all turned on, control electric expansion valve, which fully enters, adjusts aperture state, and solenoid valve is all turned on,
Flow control valve is all closed；
When multi-joint indoor unit part, which is opened, to be made, control electric expansion valve fully enters the aperture state that adjusts, in the open state
The corresponding solenoid valve of indoor unit open, other solenoid valves are closed, the corresponding flow control valve of indoor unit in the open state
It closes, other flow control valves open predetermined aperture progress flow adjusting according to system high pressure pressure change is synchronous.
7. multi-joint indoor unit noise-reduction method according to claim 6, which is characterized in that under heating state, multi-joint indoor unit
All when work, solenoid valve and flow control valve do not work；When multi-joint indoor unit part heating operation, what control was not run
Indoor unit does not accumulate refrigerant, and lubricating oil deposition is emptied in idle indoor set heat exchanger, passes through the flow control valve of unlatching
Flow adjusting is carried out, indoor flow control valve of the excessive refrigerant through opening is transmitted to and returns to indoor unit inlet tube, then transmit
Return outdoor unit.
8. the multi-joint indoor unit noise-reduction method according to claim 3 or 6, which is characterized in that the adjusting aperture state packet
Include a quarter aperture, half-open aperture and standard-sized sheet aperture.
9. a kind of air-conditioning system, which is characterized in that the air-conditioning system includes the indoor unit of multiple parallel connections, and the air-conditioning system is also
It include: memory, processor and the multi-joint indoor unit noise reduction that is stored on the memory and can run on the processor
Program, the multi-joint indoor unit noise reduction program realize multi-joint interior according to claims 1-8 when being executed by the processor
The step of machine noise-reduction method.
10. a kind of storage medium, which is characterized in that the storage medium is stored with multi-joint indoor unit noise reduction program, described multi-joint
The step of the multi-joint indoor unit noise-reduction method as described in claim any one of 1-8 is realized when indoor unit noise reduction program is executed by processor
Suddenly.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN114353281A (en) * | 2021-12-28 | 2022-04-15 | 青岛海尔空调电子有限公司 | Electronic expansion valve control method and device, computer equipment and storage medium |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111503813A (en) * | 2020-04-29 | 2020-08-07 | 广东美的暖通设备有限公司 | Multi-split system and control method and device thereof |
| CN113218035A (en) * | 2021-05-14 | 2021-08-06 | 宁波奥克斯电气股份有限公司 | Control method for multi-split oil return noise reduction, storage medium and multi-split air conditioner |
| CN113218035B (en) * | 2021-05-14 | 2022-04-22 | 宁波奥克斯电气股份有限公司 | Control method for multi-split oil return noise reduction, storage medium and multi-split air conditioner |
| CN114353281A (en) * | 2021-12-28 | 2022-04-15 | 青岛海尔空调电子有限公司 | Electronic expansion valve control method and device, computer equipment and storage medium |
| CN114353281B (en) * | 2021-12-28 | 2023-08-15 | 青岛海尔空调电子有限公司 | Electronic expansion valve control method, electronic expansion valve control device, computer equipment and storage medium |
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