CN106705298A - Multi-connection type fresh air conditioner unit with exhaust air heat pump heat recovery function and heat exchange method - Google Patents
Multi-connection type fresh air conditioner unit with exhaust air heat pump heat recovery function and heat exchange method Download PDFInfo
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- CN106705298A CN106705298A CN201611208668.0A CN201611208668A CN106705298A CN 106705298 A CN106705298 A CN 106705298A CN 201611208668 A CN201611208668 A CN 201611208668A CN 106705298 A CN106705298 A CN 106705298A
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000011084 recovery Methods 0.000 title abstract description 6
- 238000005057 refrigeration Methods 0.000 claims abstract description 22
- 239000003507 refrigerant Substances 0.000 claims description 358
- 230000003750 conditioning effect Effects 0.000 claims description 40
- 238000004378 air conditioning Methods 0.000 claims description 31
- 239000002826 coolant Substances 0.000 claims description 27
- 239000003795 chemical substances by application Substances 0.000 claims description 22
- 238000001816 cooling Methods 0.000 claims description 10
- 230000008676 import Effects 0.000 claims description 9
- 238000004891 communication Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000037452 priming Effects 0.000 claims description 6
- 238000007664 blowing Methods 0.000 claims description 4
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 230000005494 condensation Effects 0.000 abstract description 13
- 238000009833 condensation Methods 0.000 abstract description 13
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 description 4
- 238000007791 dehumidification Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000001143 conditioned effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000009975 flexible effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
Classifications
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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
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B13/00—Compression machines, plants or systems, with reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/54—Heating and cooling, simultaneously or alternatively
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
- F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
- F25B2313/02741—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means using one four-way valve
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Other Air-Conditioning Systems (AREA)
Abstract
The invention discloses a multi-connection type fresh air conditioner unit with an exhaust air heat pump heat recovery function. The technical problem that a traditional condensation exhaust air fresh air conditioner unit mentioned in background technology has defects is solved. According to the adopted technical scheme, the multi-connection type fresh air conditioner unit with the exhaust air heat pump heat recovery function comprises an outdoor unit and at least two parallel-connection indoor air conditioner units, and the indoor air conditioner units are connected with the outdoor unit. The invention further discloses a heat exchange method. The multi-connection type fresh air conditioner unit with the exhaust air heat pump heat recovery function and the heat exchange method have the advantages that according to the multi-connection type fresh air conditioner unit, an outdoor heat exchanger is added, so that the energy efficiency and operation stability of a refrigeration condition unit are improved, and the unit flexibility is improved through parallel connection of the multiple indoor air conditioner units.
Description
Technical field
The present invention relates to fresh air handining unit, more particularly to a kind of multiple fresh air air conditioner for machine with air draft heat pump recuperation of heat
Group and heat-exchange method.
Background technology
With air pollution problems inherent be on the rise and living standards of the people continuous lifting, fresh air handining unit is also more next
More it is taken seriously.Fresh air handining unit is indoor by introducing outdoor fresh air and sending into after carrying out humiture treatment to it, is changed with this
Kind IAQ, meets people for comfortable, healthy requirement.Although VMC is very heavy for lifting air quality
Will, but the energy resource consumption that heat and wet treatment is produced is very big.
In order to reduce units consumption, the air-exhaust heat-recovery fresh air handling air-conditioner set based on Refrigerant heat pump circulation arises at the historic moment,
In the market is also referred to as condensation exhaust fresh air handining unit.The air inlet of condensation exhaust fresh air handining unit, Exsufflation synchronization are carried out, and are passed through
Energy recovery is carried out to exhaust, system energy efficiency and reliability is improved.
But there is technical bottleneck at two in traditional condensation exhaust fresh air handining unit：1. due to condensation air quantity (air draft air quantity) no
Can be higher than air-supply air quantity, system high pressure is higher under causing cooling condition, is unfavorable for compressor normal work.2. traditional condensation exhaust
Except Fresh air handling units air-supply, exhaust system design are in the middle of same casing, using centerized fusion, when any region has ventilation in building
During demand, unit is integrally started shooting, for the region without ventilation demand, it is impossible to individually close down, there is energy waste phenomenon.
The content of the invention
The technical problems to be solved by the invention are：For the traditional condensation exhaust fresh air air conditioner for machine referred in background technology
Group existing defects.
Design philosophy of the invention is to be directed to the improvement of traditional condensation exhaust dehumidification fresh air group, and major measure includes：
1. increase system high pressure under outdoor heat exchanger reduction cooling condition, improve cooling system amount；2. the present invention is using multiple Interior Spaces
The mode for adjusting unit in parallel, can meet the ventilation of each conditioned space and the requirement of independent temperature-humidity control, improve system flexible
Property.
A kind of purpose of the present invention, there is provided technical scheme of fresh air handining unit, is improved by increasing outdoor heat exchanger
Cooling condition unit efficiency and operation stability, unit flexibility is improved by the way that multiple room conditioning units are in parallel.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
A kind of multiple fresh air handining unit with air draft heat pump recuperation of heat, including outdoor unit and at least two parallel connections room
Interior air-conditioning unit, room conditioning unit is connected with outdoor unit；
Outdoor unit includes compressor, outdoor fan, outdoor heat exchanger, four-way reversing valve, the first magnetic valve and first throttle
Device, the exhaust outlet of compressor passes through connecting refrigerant lines LaConnect the first connector of four-way reversing valve, the air-breathing of compressor
Mouth passes through connecting refrigerant lines LbConnect the second connector of four-way reversing valve；
Coolant channel and air duct are set on outdoor heat exchanger, and the import of the coolant channel of outdoor heat exchanger passes through
Connecting refrigerant lines LeThe first magnetic valve is connected, the outlet of the coolant channel of outdoor heat exchanger passes through connecting refrigerant lines LfEven
Connect first throttle device；First throttle device passes through connecting refrigerant lines LgAir-conditioning unit in communication chamber；The sky of outdoor heat exchanger
Gas channel connection outdoor fan；
3rd connector of four-way reversing valve passes through connecting refrigerant lines LcWith connecting refrigerant lines LdConnect the first electromagnetism
Valve, in connecting refrigerant lines LcWith connecting refrigerant lines LdJunction pass through connecting refrigerant lines LmAir-conditioning unit in communication chamber；
4th connector of four-way reversing valve passes through connecting refrigerant lines LnAir-conditioning unit in communication chamber；
Room conditioning unit includes air exhaust heat exchange device, exhaust fan, air-supply heat exchanger, breeze fan, the second magnetic valve, the
Two throttling arrangements, the 3rd magnetic valve and the 3rd throttling arrangement,
Coolant channel and air duct are set on air-supply heat exchanger, the import of the coolant channel of heat exchanger of blowing passes through
Connecting refrigerant lines LoConnection second throttling device one end, the other end connection connecting refrigerant lines L of second throttling devicep, refrigeration
Agent connecting tube LpBy connecting refrigerant lines LhConnection connecting refrigerant lines Lg；The outlet of the coolant channel of air-supply heat exchanger is led to
Cross connecting refrigerant lines LqSecond magnetic valve one end is connected, the second magnetic valve other end passes through connecting refrigerant lines LrConnection refrigeration
Agent connecting tube Ln；The subchannel that send of air-supply heat exchanger connects breeze fan；
Coolant channel and air duct are set on air exhaust heat exchange device, and the import of the coolant channel of air exhaust heat exchange device passes through
Connecting refrigerant lines LsThe 3rd magnetic valve one end is connected, the 3rd magnetic valve other end passes through connecting refrigerant lines LtConnection refrigerant
Connecting tube Lm；The outlet of the coolant channel of air exhaust heat exchange device passes through connecting refrigerant lines LuThe 3rd throttling arrangement one end is connected, the
The three throttling arrangement other ends pass through connecting refrigerant lines LvConnection connecting refrigerant lines Lp；The air exhaust passage connection of air exhaust heat exchange device
Exhaust fan.
Improvement to technical solution of the present invention, first throttle device, second throttling device and the 3rd throttling arrangement can be
Capillary, short tube, heating power expansion valve or electric expansion valve, by connecting refrigerant lines with air-supply heat exchanger, air exhaust heat exchange device and
Outdoor heat exchanger UNICOM.
The invention allows for a kind of heat-exchange method, the heat-exchange method is using the band air draft heat pump described in claim 1-3
The multiple fresh air handining unit of recuperation of heat, step specific as follows：
(1), equipment is freezed：Under cooling condition, used as evaporator, air exhaust heat exchange device is used as condensation for air-supply heat exchanger
Device, outdoor heat exchanger is used as auxiliary condenser；
Start the outdoor fan in outdoor unit, while breeze fan and exhaust fan in priming chamber in air-conditioning unit；
Four-way reversing valve is connected so that connecting refrigerant lines LbWith connecting refrigerant lines LnConnection, connecting refrigerant lines LaWith
Connecting refrigerant lines LcConnection；
First magnetic valve, the second magnetic valve and the 3rd magnetic valve are opened；
Start compressor；
Refrigerant circulation：Refrigerant enters four-way reversing valve by compressor, is shunted afterwards, and part of refrigerant passes through
Connecting refrigerant lines Lm, connecting refrigerant lines Lt, the 3rd magnetic valve and connecting refrigerant lines LsFirst in feeding air exhaust heat exchange device, then
Connecting refrigerant lines L is passed through by the outlet of air exhaust heat exchange deviceu, the second magnetic valve, connecting refrigerant lines Lp, second throttling device and
Connecting refrigerant lines Lo, eventually enter into and send in point heat exchanger；Another part refrigerant is connected by the first magnetic valve and refrigerant
Pipe LeOutdoor heat exchanger is introduced into, then connecting refrigerant lines L is passed through by the outlet of outdoor heat exchangerfBy first throttle device, system
Cryogen connecting tube Lg, connecting refrigerant lines Lh, connecting refrigerant lines Lp, second throttling device and connecting refrigerant lines Lo, finally enter
Enter and send in point heat exchanger；Refrigerant after sending point heat exchanger heat exchange has the outlet for sending point heat exchanger to pass through connecting refrigerant lines
Lq, the second magnetic valve, connecting refrigerant lines LrWith connecting refrigerant lines LnSend compressor back to；
Air flow：Room conditioning unit：Outdoor fresh air, by sending point heat exchanger to enter to enter the room under breeze fan work
It is interior；Indoor return air, outdoor is entered by air exhaust heat exchange device under exhaust fan work；Compressor：Outdoor fresh air is changed by outdoor
Hot device enters outdoor under outdoor fan work；
(2), equipment is heated：Under heating condition, used as condenser, air exhaust heat exchange device is used as evaporation for air-supply heat exchanger
Device, outdoor heat exchanger is used as auxiliary evaporator；
Start the outdoor fan in outdoor unit, while breeze fan and exhaust fan in priming chamber in air-conditioning unit；
Four-way reversing valve commutation is connected so that connecting refrigerant lines LbWith connecting refrigerant lines LcConnection, connecting refrigerant lines
LaWith connecting refrigerant lines LnConnection；
First magnetic valve, the second magnetic valve and the 3rd magnetic valve are opened；
Start compressor；
Refrigerant circulation：Refrigerant enters four-way reversing valve by compressor, and refrigerant passes through connecting refrigerant lines Ln, refrigeration
Agent connecting tube Lr, the second magnetic valve and connecting refrigerant lines LqInto air-supply heat exchanger, the refrigeration of the heat exchange by sending point heat exchanger
Agent is flowed out by connecting refrigerant lines Lo, second throttling device and connecting refrigerant lines LpShunted, part of refrigerant passes through
Connecting refrigerant lines Lh, connecting refrigerant lines Lg, first throttle device and connecting refrigerant lines LfInto outdoor heat exchanger, finally
The refrigerant flowed out after outdoor heat exchanger is exchanged heat passes through connecting refrigerant lines Le, the first magnetic valve, refrigerant connection
Pipe LcWith connecting refrigerant lines LbReturn to compressor；Another part refrigerator passes through connecting refrigerant lines Lv, the 3rd choke valve and system
Cryogen connecting tube LuInto in air exhaust heat exchange device, the refrigerant outflow exchanged heat by air exhaust heat exchange device is connected by refrigerant
Pipe Ls, the 3rd magnetic valve, connecting refrigerant lines Lt, connecting refrigerant lines Lm, connecting refrigerant lines LcWith connecting refrigerant lines LbReturn
To compressor；
Air flow：Room conditioning unit：Outdoor fresh air, by sending point heat exchanger to enter to enter the room under breeze fan work
It is interior；Indoor return air, outdoor is entered by air exhaust heat exchange device under exhaust fan work；Compressor：Outdoor fresh air is changed by outdoor
Hot device enters outdoor under outdoor fan work.
Compared with prior art, its advantage is the present invention：
1st, the present invention solve traditional central controlled condensation exhaust unit can only system concentrate operation, it is impossible to while meet
Each conditioned space ventilation and Temperature and Humidity Control individual demand, and there is the technical bottleneck of energy waste, improve system flexible
Property, reduce whole machine operation energy consumption.
2nd, present device is less prone to alarm for high voltage problem under cooling in summer operating mode, is conducive to the normal fortune of compressor
OK, unit durability is improved.
Brief description of the drawings
Fig. 1 is the workflow diagram of the multiple fresh air handining unit with air draft heat pump recuperation of heat in embodiment.
In figure：1st, a room conditioning unit, the 15, second magnetic valve, the 16, second throttling device, the 17, the 3rd throttling dress
Put, the 18, the 3rd magnetic valve, 2, No. two room conditioning units, 21, connecting refrigerant lines Lo, 22, connecting refrigerant lines Lq, 23, system
Cryogen connecting tube Lr, 24, connecting refrigerant lines Lp, 25, connecting refrigerant lines Lh, 26, connecting refrigerant lines Lv, 27, refrigerant connect
Adapter Lu, 28, connecting refrigerant lines Ls, 29 connecting refrigerant lines Lt, 3, outdoor unit, the 35, the 4th magnetic valve, the 36, the 4th throttling dress
Put, the 37, the 5th throttling arrangement, the 38, the 5th magnetic valve, 4,6, air-supply passage, 41, connecting refrigerant lines LO, 42, refrigerant connection
Pipe LQ, 43, connecting refrigerant lines LR, 44, connecting refrigerant lines LP, 45, connecting refrigerant lines LH, 46, connecting refrigerant lines LV,
47th, connecting refrigerant lines LU, 48, connecting refrigerant lines LS, 49 connecting refrigerant lines LT, 61, connecting refrigerant lines Lg, 62, refrigeration
Agent connecting tube Lf, 63, connecting refrigerant lines Le, 64, connecting refrigerant lines Ld, 65, connecting refrigerant lines Lc, 66, refrigerant connection
Pipe La, 67, connecting refrigerant lines Lb, 68, connecting refrigerant lines Ln, 69, connecting refrigerant lines Lm, 5,7 air exhaust passages, 51, outdoor
Heat exchanger, 52, outdoor fan, 53, compressor, 54, four-way reversing valve, the 55, first magnetic valve, 56, first throttle device, 11,
31 air-supply heat exchangers, 12,32 air exhaust heat exchange devices, 13,33 breeze fans, 14,34 exhaust fans.
Specific embodiment
Technical solution of the present invention is described in detail below, but protection scope of the present invention is not limited to the implementation
Example.
To make present disclosure more obvious understandable, further retouched below in conjunction with accompanying drawing 1 and specific embodiment
State.
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the present invention, not
For limiting the present invention.
Embodiment：
As shown in figure 1, the workflow of the multiple fresh air handining unit with air draft heat pump recuperation of heat for the present embodiment
Figure, the present embodiment devises a kind of multiple condensation exhaust dehumidification fresh air group with outdoor heat exchanger, the fresh air handining unit
It is made up of 1, No. two room conditioning units 2 of a room conditioning unit and outdoor unit 3.
Outdoor unit 3 mainly includes compressor 53, four-way reversing valve 54, outdoor heat exchanger 51, outdoor fan 52, first throttle
Device 56, the first magnetic valve 55, connecting refrigerant lines Lg61st, connecting refrigerant lines Lf62nd, connecting refrigerant lines Le63rd, refrigerant
Connecting tube Ld64th, connecting refrigerant lines Lc65th, connecting refrigerant lines La66th, connecting refrigerant lines Lb67th, connecting refrigerant lines Ln68
With connecting refrigerant lines Lm69。
Number room conditioning unit 1 includes air-supply heat exchanger 11, breeze fan 13, air exhaust heat exchange device 12, exhaust fan 14,
Second throttling device 16, the 3rd throttling arrangement 17, the second magnetic valve 15, the 3rd magnetic valve 18, connecting refrigerant lines Lo21st, freeze
Agent connecting tube Lq22nd, connecting refrigerant lines Lr23rd, connecting refrigerant lines Lp24th, connecting refrigerant lines Lh25th, connecting refrigerant lines
Lv26th, connecting refrigerant lines Lu27th, connecting refrigerant lines Ls28 and connecting refrigerant lines Lt29。
No. two room conditioning units 2 include air-supply heat exchanger 31, breeze fan 33, air exhaust heat exchange device 32, exhaust fan 34,
4th throttling arrangement 36, the 5th throttling arrangement 37, the 4th magnetic valve 35, the 5th magnetic valve 38, connecting refrigerant lines LO41st, freeze
Agent connecting tube LQ42nd, connecting refrigerant lines LR43rd, connecting refrigerant lines LP44th, connecting refrigerant lines LH45th, connecting refrigerant lines
LV46th, connecting refrigerant lines LU47th, connecting refrigerant lines LS48 and connecting refrigerant lines LT49。
Air-supply passage 4,6 and air exhaust passage 5,7 are provided with a number room conditioning unit 1 and No. two room conditioning units 2,
Air-supply passage 4,6 and air exhaust passage 5,7 do not pass through airduct UNICOM.
Because a room conditioning unit 1 is identical with each air-conditioning unit internal structure of No. two room conditioning units 2, therefore
It is introduced by taking the inside of room conditioning unit 1 connection as an example.Set on air-supply heat exchanger 11 in a number room conditioning unit 1
Coolant channel and air duct, the import of the coolant channel of heat exchanger of blowing pass through connecting refrigerant lines Lo21 connections second
The one end of throttling arrangement 16, the other end connection connecting refrigerant lines L of second throttling device 16p24, connecting refrigerant lines Lp24 pass through
Connecting refrigerant lines Lh25 connection connecting refrigerant lines Lg61；The outlet of the coolant channel of air-supply heat exchanger 11 passes through refrigerant
Connecting tube Lq22 connection the second magnetic valve 15 one end, the other end of the second magnetic valve 15 passes through connecting refrigerant lines Lr23 connection refrigeration
Agent connecting tube Ln68；The subchannel 4 that send of air-supply heat exchanger connects breeze fan 13.
Coolant channel and air duct, the import of the coolant channel of air exhaust heat exchange device 12 are set on air exhaust heat exchange device 12
By connecting refrigerant lines Ls28 connection the 3rd magnetic valve 18 one end, the other end of the 3rd magnetic valve 18 passes through connecting refrigerant lines
Lt29 connection connecting refrigerant lines Lm69；The outlet of the coolant channel of air exhaust heat exchange device 12 passes through connecting refrigerant lines Lu27 connect
The one end of the 3rd throttling arrangement 17 is connect, the other end of the 3rd throttling arrangement 17 passes through connecting refrigerant lines Lv26 connection connecting refrigerant lines
Lp24；The connection exhaust fan of air exhaust passage 5 of air exhaust heat exchange device.
The exhaust outlet of the compressor 53 in outdoor unit 3 passes through connecting refrigerant lines LaThe first of 66 connection four-way reversing valves 54
Connector, the air entry of compressor 53 passes through connecting refrigerant lines LbSecond connector of 67 connection four-way reversing valves 54.
Coolant channel and air duct are set on outdoor heat exchanger 51, and the import of the coolant channel of outdoor heat exchanger is led to
Cross connecting refrigerant lines Le63 the first magnetic valves 55 of connection, the outlet of the coolant channel of outdoor heat exchanger is connected by refrigerant
Pipe Lf62 connection first throttle devices 56；First throttle device 56 passes through connecting refrigerant lines LgAir-conditioning unit in 61 communication chambers；Room
The air duct connection outdoor fan 52 of external heat exchanger 51.
3rd connector of four-way reversing valve 54 passes through connecting refrigerant lines Lc65 and connecting refrigerant lines Ld64 connections first
Magnetic valve 55, in connecting refrigerant lines Lc65 and connecting refrigerant lines Ld64 junction passes through connecting refrigerant lines Lm69 connections
Room conditioning unit；4th connector of four-way reversing valve 54 passes through connecting refrigerant lines LnAir-conditioning unit in 68 communication chambers.
A kind of heat-exchange method proposed in the present embodiment, the heat-exchange method is foregoing state with the multi-joint of air draft heat pump recuperation of heat
Formula fresh air handining unit, step specific as follows：
(1), equipment is freezed：Under cooling condition, used as evaporator, air exhaust heat exchange device is used as condensation for air-supply heat exchanger
Device, outdoor heat exchanger is used as auxiliary condenser；
Start the outdoor fan in outdoor unit, while breeze fan and exhaust fan in priming chamber in air-conditioning unit；
Four-way reversing valve is connected so that connecting refrigerant lines LbWith connecting refrigerant lines LnConnection, connecting refrigerant lines LaWith
Connecting refrigerant lines LcConnection；
First magnetic valve, the second magnetic valve and the 3rd magnetic valve are opened；
Start compressor；
Refrigerant circulation：Refrigerant enters four-way reversing valve by compressor, is shunted afterwards, and part of refrigerant passes through
Connecting refrigerant lines Lm, connecting refrigerant lines Lt, the 3rd magnetic valve and connecting refrigerant lines LsFirst in feeding air exhaust heat exchange device, then
Connecting refrigerant lines L is passed through by the outlet of air exhaust heat exchange deviceu, the second magnetic valve, connecting refrigerant lines Lp, second throttling device and
Connecting refrigerant lines Lo, eventually enter into and send in point heat exchanger；Another part refrigerant is connected by the first magnetic valve and refrigerant
Pipe LeOutdoor heat exchanger is introduced into, then connecting refrigerant lines L is passed through by the outlet of outdoor heat exchangerfBy first throttle device, system
Cryogen connecting tube Lg, connecting refrigerant lines Lh, connecting refrigerant lines Lp, second throttling device and connecting refrigerant lines Lo, finally enter
Enter and send in point heat exchanger；Refrigerant after sending point heat exchanger heat exchange has the outlet for sending point heat exchanger to pass through connecting refrigerant lines
Lq, the second magnetic valve, connecting refrigerant lines LrWith connecting refrigerant lines LnSend compressor back to；
Air flow：Room conditioning unit：Outdoor fresh air, by sending point heat exchanger to enter to enter the room under breeze fan work
It is interior；Indoor return air, outdoor is entered by air exhaust heat exchange device under exhaust fan work；Compressor：Outdoor fresh air is changed by outdoor
Hot device enters outdoor under outdoor fan work；
(2), equipment is heated：Under heating condition, used as condenser, air exhaust heat exchange device is used as evaporation for air-supply heat exchanger
Device, outdoor heat exchanger is used as auxiliary evaporator；
Start the outdoor fan in outdoor unit, while breeze fan and exhaust fan in priming chamber in air-conditioning unit；
Four-way reversing valve commutation is connected so that connecting refrigerant lines LbWith connecting refrigerant lines LcConnection, connecting refrigerant lines
LaWith connecting refrigerant lines LnConnection；
First magnetic valve, the second magnetic valve and the 3rd magnetic valve are opened；
Start compressor；
Refrigerant circulation：Refrigerant enters four-way reversing valve by compressor, and refrigerant passes through connecting refrigerant lines Ln, refrigeration
Agent connecting tube Lr, the second magnetic valve and connecting refrigerant lines LqInto air-supply heat exchanger, the refrigeration of the heat exchange by sending point heat exchanger
Agent is flowed out by connecting refrigerant lines Lo, second throttling device and connecting refrigerant lines LpShunted, part of refrigerant passes through
Connecting refrigerant lines Lh, connecting refrigerant lines Lg, first throttle device and connecting refrigerant lines LfInto outdoor heat exchanger, finally
The refrigerant flowed out after outdoor heat exchanger is exchanged heat passes through connecting refrigerant lines Le, the first magnetic valve, refrigerant connection
Pipe LcWith connecting refrigerant lines LbReturn to compressor；Another part refrigerator passes through connecting refrigerant lines Lv, the 3rd choke valve and system
Cryogen connecting tube LuInto in air exhaust heat exchange device, the refrigerant outflow exchanged heat by air exhaust heat exchange device is connected by refrigerant
Pipe Ls, the 3rd magnetic valve, connecting refrigerant lines Lt, connecting refrigerant lines Lm, connecting refrigerant lines LcWith connecting refrigerant lines LbReturn
To compressor；
Air flow：Room conditioning unit：Outdoor fresh air, by sending point heat exchanger to enter to enter the room under breeze fan work
It is interior；Indoor return air, outdoor is entered by air exhaust heat exchange device under exhaust fan work；Compressor：Outdoor fresh air is changed by outdoor
Hot device enters outdoor under outdoor fan work.
The specific embodiment mode of the present embodiment：
There is refrigeration, heat work in a kind of multiple condensation exhaust dehumidification fresh air group with outdoor heat exchanger of the present embodiment
Condition, can all air-conditioning units simultaneously run, also can only operation part air-conditioning unit.Its specific workflow is as follows.
All air-conditioning units run simultaneously：
Under cooling condition, air-supply heat exchanger 11,31 used as evaporator, used as condenser, change air exhaust heat exchange device 12,32 by outdoor
Hot device 51 makes connecting refrigerant lines L as auxiliary condenser, four-way reversing valve 54b67th, connecting refrigerant lines Ln68 UNICOMs, refrigeration
Agent connecting tube Lc65th, connecting refrigerant lines La66 UNICOMs, all magnetic valve standard-sized sheets.
Refrigerant circulation：Refrigerant enters four-way reversing valve 54 by compressor 53, is shunted afterwards, part of refrigerant
By connecting refrigerant lines Lm69th, connecting refrigerant lines Lt29 and connecting refrigerant lines LS48 are respectively fed to a room conditioning list
In the middle of unit 1 and No. two room conditioning units 2；Another part refrigerant → 55 → outdoor heat exchanger of magnetic valve, 51 → first throttle dress
56 are put, then by connecting refrigerant lines Lg61st, connecting refrigerant lines Lh25 and connecting refrigerant lines LPA 44 number room conditionings of feeding
In the middle of unit 1 and No. two room conditioning units 2.By connecting refrigerant lines Lm69th, connecting refrigerant lines Lt29 and connecting refrigerant lines
LS48 flow separately through the 3rd magnetic valve 18, into the refrigerant in a room conditioning unit 1 and No. two room conditioning units 2
The throttling arrangement 17 of five 38 → air exhaust heat exchange of magnetic valve device the 12,32 → the 3rd, the 5th throttling arrangement 37, are connected with by refrigerant afterwards
Pipe Lg61st, connecting refrigerant lines Lh25 and connecting refrigerant lines LP44 feeding a number room conditioning unit 1 and No. two room conditioning lists
Refrigerant converges and respectively enters second throttling device 16, the 4th throttling arrangement 36 → electricity of air-supply heat exchanger 11,31 → the second in unit 2
Magnet valve 15, the 4th magnetic valve 35, then by connecting refrigerant lines Lr23rd, connecting refrigerant lines LT49 and connecting refrigerant lines
Ln68 converge into four-way reversing valve 54, finally by connecting refrigerant lines Lb67 send compressor 53 back to.Air side flow：It is outdoor
Fresh air → air-supply heat exchanger 11,31 → breeze fan 13,33 → interior；Indoor return air → air exhaust heat exchange device 12,32 → air draft wind
Machine 14,34 → outdoor；Outdoor fresh air → 51 → outdoor fan of outdoor heat exchanger 52 → outdoor.Outdoor fan air quantity compares air-conditioning list
Air draft crosswind amount is big in first, can more preferably be radiated, and reduces system high pressure, improves unit efficiency.
Under heating condition, air-supply heat exchanger 11,31 used as condenser, used as evaporator, change air exhaust heat exchange device 12,32 by outdoor
Hot device 51 makes connecting refrigerant lines L as auxiliary evaporator, four-way reversing valve 54b67th, connecting refrigerant lines Lc65 UNICOMs, refrigeration
Agent connecting tube La66th, connecting refrigerant lines Ln68 UNICOMs, all magnetic valve standard-sized sheets.Refrigerant circulation：Refrigerant is entered by compressor 53
Enter four-way reversing valve 54, refrigerant passes through connecting refrigerant lines Ln68th, connecting refrigerant lines Lr23 and connecting refrigerant lines LT49 enter
Enter a room conditioning unit 1 and No. two room conditioning units 2, flow through the second magnetic valve 15, the 4th electromagnetism in air-conditioning unit
Valve 35 → air-supply heat exchanger 11,31 → second throttling device 16, the 4th throttling arrangement 36, are shunted afterwards, part refrigeration
Agent passes through connecting refrigerant lines Lp24 → connecting refrigerant lines Lh25 → connecting refrigerant lines Lg61, connecting refrigerant lines LR43→
Connecting refrigerant lines LP44 → connecting refrigerant lines Lg61 flow to 56 → outdoor heat exchanger of first throttle device 51 in outdoor unit 3 →
Magnetic valve 55；Another part passes through connecting refrigerant lines Lp24 → connecting refrigerant lines Lv26；Connecting refrigerant lines LR43 → refrigeration
Agent connecting tube LH45 enter the 3rd throttling arrangements 17, the 5th the 12,32 → the three magnetic valve 18 of 37 → exhaust fan of throttling arrangement, the
Five magnetic valves 38, then by connecting refrigerant lines Lt29th, connecting refrigerant lines LS48th, connecting refrigerant lines Lm69 return to outdoor unit 3
And in flowing through connecting refrigerant lines Ld64 refrigerant flows into four-way reversing valve 54 after converging, finally by connecting refrigerant lines Lb67
Return to compressor 53.
Part air-conditioning unit independent operating：
Under the cooling condition of air-conditioning unit independent operating, if the user for installing air-conditioning unit 1 has use demand and installs sky
Adjust the user of unit 2 without use demand, used as evaporator, air exhaust heat exchange device 12 is used as condenser, room for heat exchanger 11 of now blowing
External heat exchanger 51 makes connecting refrigerant lines L as auxiliary condenser, four-way reversing valve 54b67th, connecting refrigerant lines Ln68 UNICOMs,
Connecting refrigerant lines La66th, connecting refrigerant lines Lc65 UNICOMs, the second magnetic valve 15, the 3rd magnetic valve 18, the first magnetic valve 55 are protected
Hold normally opened, the 5th magnetic valve 38, the 4th magnetic valve 35 are remained turned-off.Refrigerant circulation：Refrigerant enters four-way by compressor 53
Reversal valve 54, is shunted afterwards, and part of refrigerant passes through connecting refrigerant lines Lm69th, connecting refrigerant lines Lt29 feeding rooms
In the middle of interior air-conditioning unit；Another part refrigerant → the first magnetic valve 55 → outdoor heat exchanger, 51 → first throttle device 56, then
By connecting refrigerant lines Lg61st, connecting refrigerant lines LhIn the middle of 25 feeding room conditioning units.By connecting refrigerant lines Lm69、
Connecting refrigerant lines Lt29 cold-producing medium streams entered in air-conditioning units 1 are through Section 12 → three of the 3rd 18 → air exhaust heat exchange of magnetic valve device
Stream device 17, afterwards with by connecting refrigerant lines Lg61st, connecting refrigerant lines LhRefrigerant converges difference in 25 feeding air-conditioning units
Into second throttling device 16 → magnetic valve 15 of air-supply heat exchanger 11 → the second, then by connecting refrigerant lines Lr23rd, freeze
Agent connecting tube Ln68 converge into four-way reversing valve 54, finally by connecting refrigerant lines Lb67 send compressor 53 back to.Air effluent
It is dynamic：Outdoor fresh air → 11 → breeze fan of air-supply heat exchanger 13 → interior；Indoor return air → air exhaust heat exchange 12 → exhaust fan of device
14 → outdoor；Outdoor fresh air → 51 → outdoor fan of outdoor heat exchanger 52 → outdoor.
Under the heating condition of air-conditioning unit independent operating, air-supply heat exchanger 11 is used as condenser, the conduct of air exhaust heat exchange device 12
Evaporator, outdoor heat exchanger 51 makes connecting refrigerant lines L as auxiliary evaporator, four-way reversing valve 54b67th, connecting refrigerant lines
Lc65 UNICOMs, connecting refrigerant lines La66th, connecting refrigerant lines Ln68 UNICOMs, the second magnetic valve 15, the 3rd magnetic valve 18, first
Magnetic valve 55 is maintained a normally open, and the 5th magnetic valve 38, the 4th magnetic valve 35 are remained turned-off.Refrigerant circulation：Refrigerant is by compressor
53 enter four-way reversing valve 54, and refrigerant passes through connecting refrigerant lines Ln68th, connecting refrigerant lines Lr23 get in air-conditioning list
Unit, flows through second 11 → second throttling device of magnetic valve 15 → air-supply heat exchanger 16 in room conditioning unit, is divided afterwards
Stream, part of refrigerant passes through connecting refrigerant lines Lp24- connecting refrigerant lines Lh25- connecting refrigerant lines Lg61 flow directions are outdoor
The magnetic valve 55 of 56 → outdoor heat exchanger of first throttle device 51 → the first in machine 3；Another part passes through connecting refrigerant lines Lp24-
Connecting refrigerant lines Lv26 enter the magnetic valve 18 of the 3rd 17 → air exhaust heat exchange of throttling arrangement device the 12 → the 3rd, then connect by refrigerant
Adapter Lt29th, connecting refrigerant lines Lm69 return to outdoor unit 3 and in flowing through connecting refrigerant lines Ld64 refrigerant is flowed into after converging
Four-way reversing valve 54, finally by connecting refrigerant lines Lb67 return to compressor 53.
If the user for installing air-conditioning unit 2 is by use demand, when the user of air-conditioning unit 1 being installed without use demand, close
Second magnetic valve 15, the 3rd magnetic valve 18, keep the 4th magnetic valve 35, the 5th magnetic valve 38 normally opened.By above control
The operation switching between each unit is realized, strengthens unit flexibility, reduce unnecessary energy loss.
Above-described embodiment is only with an outdoor unit, and the multiple with air draft heat pump recuperation of heat of two room conditioning units is new
Illustrated as a example by wind air-conditioner set, but with the multiple fresh air handining unit of air draft heat pump recuperation of heat, its outdoor unit number in parallel
Amount and room conditioning element number in parallel are unrestricted, increase and decrease outdoor unit quantity in parallel and room conditioning element number in parallel,
Belong within the protection category of this patent.
All parts in not complete displaying refrigerant circulation and air channel in above-described embodiment, in implementation process, from difference
Refrigerant, four-way reversing valve, high-pressure reservoir, gas-liquid separator, oily separation, filter, drier are set in refrigerant loop
Etc. common refrigeration auxiliary, set at the air such as filter, silencer, auxiliary humidification device, auxiliary heater, sterilizing unit in air channel
Reason annex, from different blow spray nozzles and return air grid, changes blower fan position, or the spirit for not departing from technical solution of the present invention
Increase heat exchanger, blower fan and air-valve etc., can not be considered as has carried out substantial improvements to the present invention, should belong to protection of the present invention
Scope.
The word such as " first " used herein, " second " limits part, and those skilled in the art should know：" the
One ", the use of the word such as " second " is intended merely to facilitate in description and part is distinguished.Outside such as no Stated otherwise, on
Predicate language does not have special implication.
Above-described embodiment is presently preferred embodiments of the present invention, is not the limitation to technical solution of the present invention, as long as
Without the technical scheme that creative work can be realized on the basis of above-described embodiment, it is regarded as falling into patent of the present invention
Rights protection scope in.
Part that the present invention does not relate to is same as the prior art or can be realized using prior art.
Although as described above, having been represented with reference to specific preferred embodiment and having described the present invention, it must not be explained
It is to the limitation of itself of the invention.Under the premise of the spirit and scope of the present invention for not departing from appended claims definition, can be right
Various changes can be made in the form and details for it.
Claims (3)
1. a kind of multiple fresh air handining unit with air draft heat pump recuperation of heat, it is characterised in that including outdoor unit and at least two
Individual room conditioning unit in parallel, room conditioning unit is connected with outdoor unit；
Outdoor unit includes compressor, outdoor fan, outdoor heat exchanger, four-way reversing valve, the first magnetic valve and first throttle device,
The exhaust outlet of compressor passes through connecting refrigerant lines LaThe first connector of four-way reversing valve is connected, the air entry of compressor passes through
Connecting refrigerant lines LbConnect the second connector of four-way reversing valve；
Coolant channel and air duct are set on outdoor heat exchanger, and the import of the coolant channel of outdoor heat exchanger is by refrigeration
Agent connecting tube LeThe first magnetic valve is connected, the outlet of the coolant channel of outdoor heat exchanger passes through connecting refrigerant lines LfConnection the
One throttling arrangement；First throttle device passes through connecting refrigerant lines LgAir-conditioning unit in communication chamber；The air of outdoor heat exchanger leads to
Road connects outdoor fan；
3rd connector of four-way reversing valve passes through connecting refrigerant lines LcWith connecting refrigerant lines LdThe first magnetic valve is connected,
Connecting refrigerant lines LcWith connecting refrigerant lines LdJunction pass through connecting refrigerant lines LmAir-conditioning unit in communication chamber；Four-way
4th connector of reversal valve passes through connecting refrigerant lines LnAir-conditioning unit in communication chamber；
Room conditioning unit includes air exhaust heat exchange device, exhaust fan, air-supply heat exchanger, breeze fan, the second magnetic valve, second section
Stream device, the 3rd magnetic valve and the 3rd throttling arrangement,
Coolant channel and air duct are set on air-supply heat exchanger, the import of the coolant channel of heat exchanger of blowing is by refrigeration
Agent connecting tube LoConnection second throttling device one end, the other end connection connecting refrigerant lines L of second throttling devicep, refrigerant company
Adapter LpBy connecting refrigerant lines LhConnection connecting refrigerant lines Lg；The outlet of the coolant channel of air-supply heat exchanger is by system
Cryogen connecting tube LqSecond magnetic valve one end is connected, the second magnetic valve other end passes through connecting refrigerant lines LrConnection refrigerant connects
Adapter Ln；The subchannel that send of air-supply heat exchanger connects breeze fan；
Coolant channel and air duct are set on air exhaust heat exchange device, and the import of the coolant channel of air exhaust heat exchange device is by refrigeration
Agent connecting tube LsThe 3rd magnetic valve one end is connected, the 3rd magnetic valve other end passes through connecting refrigerant lines LtConnection refrigerant connection
Pipe Lm；The outlet of the coolant channel of air exhaust heat exchange device passes through connecting refrigerant lines LuConnect the 3rd throttling arrangement one end, Section three
The stream device other end passes through connecting refrigerant lines LvConnection connecting refrigerant lines Lp；The air exhaust passage connection air draft of air exhaust heat exchange device
Blower fan.
2. the multiple fresh air handining unit with air draft heat pump recuperation of heat as claimed in claim 1, it is characterised in that first segment
Stream device, second throttling device and the 3rd throttling arrangement can be capillary, short tube, heating power expansion valve or electric expansion valve, lead to
Connecting refrigerant lines are crossed with air-supply heat exchanger, air exhaust heat exchange device and outdoor heat exchanger UNICOM.
3. a kind of heat-exchange method, it is characterised in that：The heat-exchange method is using the band air draft heat pump recuperation of heat described in claim 1-2
Multiple fresh air handining unit, step specific as follows：
(1), equipment is freezed：Under cooling condition, air-supply heat exchanger as evaporator, air exhaust heat exchange device as condenser,
Outdoor heat exchanger is used as auxiliary condenser；
Start the outdoor fan in outdoor unit, while breeze fan and exhaust fan in priming chamber in air-conditioning unit；
Four-way reversing valve is connected so that connecting refrigerant lines LbWith connecting refrigerant lines LnConnection, connecting refrigerant lines LaAnd refrigeration
Agent connecting tube LcConnection；
First magnetic valve, the second magnetic valve and the 3rd magnetic valve are opened；
Start compressor；
Refrigerant circulation：Refrigerant enters four-way reversing valve by compressor, is shunted afterwards, and part of refrigerant is by refrigeration
Agent connecting tube Lm, connecting refrigerant lines Lt, the 3rd magnetic valve and connecting refrigerant lines LsFirst in feeding air exhaust heat exchange device, then by arranging
The outlet of wind heat exchanger passes through connecting refrigerant lines Lu, the second magnetic valve, connecting refrigerant lines Lp, second throttling device and refrigeration
Agent connecting tube Lo, eventually enter into and send in point heat exchanger；Another part refrigerant passes through the first magnetic valve and connecting refrigerant lines LeFirst
Into outdoor heat exchanger, then connecting refrigerant lines L is passed through by the outlet of outdoor heat exchangerfBy first throttle device, refrigerant
Connecting tube Lg, connecting refrigerant lines Lh, connecting refrigerant lines Lp, second throttling device and connecting refrigerant lines Lo, eventually enter into and send
Divide in heat exchanger；Refrigerant after sending point heat exchanger heat exchange has the outlet for sending point heat exchanger to pass through connecting refrigerant lines Lq、
Second magnetic valve, connecting refrigerant lines LrWith connecting refrigerant lines LnSend compressor back to；
Air flow：Room conditioning unit：Outdoor fresh air, by sending point heat exchanger to be got under breeze fan work；Room
Interior return air, outdoor is entered by air exhaust heat exchange device under exhaust fan work；Compressor：Outdoor fresh air exists by outdoor heat exchanger
Outdoor is entered under outdoor fan work；
(2), equipment is heated：Under heating condition, air-supply heat exchanger as condenser, air exhaust heat exchange device as evaporator,
Outdoor heat exchanger is used as auxiliary evaporator；
Start the outdoor fan in outdoor unit, while breeze fan and exhaust fan in priming chamber in air-conditioning unit；
Four-way reversing valve commutation is connected so that connecting refrigerant lines LbWith connecting refrigerant lines LcConnection, connecting refrigerant lines LaWith
Connecting refrigerant lines LnConnection；
First magnetic valve, the second magnetic valve and the 3rd magnetic valve are opened；
Start compressor；
Refrigerant circulation：Refrigerant enters four-way reversing valve by compressor, and refrigerant passes through connecting refrigerant lines Ln, refrigerant connect
Adapter Lr, the second magnetic valve and connecting refrigerant lines LqInto air-supply heat exchanger, the cold-producing medium stream of the heat exchange by sending point heat exchanger
Go out by connecting refrigerant lines Lo, second throttling device and connecting refrigerant lines LpShunted, part of refrigerant is by refrigeration
Agent connecting tube Lh, connecting refrigerant lines Lg, first throttle device and connecting refrigerant lines LfInto outdoor heat exchanger, eventually pass
The refrigerant that outdoor heat exchanger flows out after being exchanged heat passes through connecting refrigerant lines Le, the first magnetic valve, connecting refrigerant lines LcWith
Connecting refrigerant lines LbReturn to compressor；Another part refrigerator passes through connecting refrigerant lines Lv, the 3rd choke valve and refrigerant connect
Adapter LuInto in air exhaust heat exchange device, the refrigerant exchanged heat by air exhaust heat exchange device is flowed out by connecting refrigerant lines Ls,
Three magnetic valves, connecting refrigerant lines Lt, connecting refrigerant lines Lm, connecting refrigerant lines LcWith connecting refrigerant lines LbReturn to compression
Machine；
Air flow：Room conditioning unit：Outdoor fresh air, by sending point heat exchanger to be got under breeze fan work；Room
Interior return air, outdoor is entered by air exhaust heat exchange device under exhaust fan work；Compressor：Outdoor fresh air exists by outdoor heat exchanger
Outdoor is entered under outdoor fan work.
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| CN201611208668.0A CN106705298B (en) | 2016-12-23 | 2016-12-23 | Multi-connected fresh air conditioning unit with exhaust heat pump heat recovery function and heat exchange method |
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| CN109539406A (en) * | 2018-11-02 | 2019-03-29 | 广东申菱环境系统股份有限公司 | A kind of VRF Air Conditioning System of three-stage |
| CN112361801A (en) * | 2020-10-27 | 2021-02-12 | 张勇 | Control method of heat pump drying system |
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| CN112361801B (en) * | 2020-10-27 | 2022-06-03 | 张勇 | Control method of heat pump drying system |
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