CN109307378A - Air-conditioning system - Google Patents
Air-conditioning system Download PDFInfo
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- CN109307378A CN109307378A CN201810891485.6A CN201810891485A CN109307378A CN 109307378 A CN109307378 A CN 109307378A CN 201810891485 A CN201810891485 A CN 201810891485A CN 109307378 A CN109307378 A CN 109307378A
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- air
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- compressor
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- 238000004378 air conditioning Methods 0.000 title claims abstract description 46
- 239000007788 liquid Substances 0.000 claims abstract description 77
- 239000012530 fluid Substances 0.000 claims abstract description 8
- 238000001704 evaporation Methods 0.000 claims description 44
- 230000008020 evaporation Effects 0.000 claims description 44
- 150000001875 compounds Chemical class 0.000 claims description 6
- 230000001502 supplementing effect Effects 0.000 claims description 3
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 239000003507 refrigerant Substances 0.000 abstract description 85
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 239000012071 phase Substances 0.000 description 23
- 230000006835 compression Effects 0.000 description 12
- 238000007906 compression Methods 0.000 description 12
- 230000006837 decompression Effects 0.000 description 9
- 238000010521 absorption reaction Methods 0.000 description 8
- 239000002826 coolant Substances 0.000 description 8
- 239000007921 spray Substances 0.000 description 8
- 239000000243 solution Substances 0.000 description 7
- 239000012808 vapor phase Substances 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 6
- 238000005057 refrigeration Methods 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000009792 diffusion process Methods 0.000 description 4
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005611 electricity Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- 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
- F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
- F25B9/08—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using ejectors
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- 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
- F25B31/00—Compressor arrangements
-
- 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
-
- 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
- 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
- F25B41/30—Expansion means; Dispositions thereof
- F25B41/31—Expansion valves
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- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
This application provides a kind of air-conditioning systems.In the air-conditioning system, 4th interface of four-way valve and the first entrance of injector are connected by third pipeline, the first interface of triple valve and the first leakage fluid dram of gas-liquid separator are connected by the 4th pipeline, the second interface of triple valve is connect with indoor heat exchanger by the 5th pipeline, the third interface of triple valve and the second entrance of injector are connected by the 6th pipeline, the second entrance of outdoor heat exchanger and injector is connected by the 7th pipeline, the outlet of injector and the input port of gas-liquid separator are connected by the 8th pipeline, second leakage fluid dram of gas-liquid separator is connect with outdoor heat exchanger by the 9th pipeline.In air-conditioning system work, injector uses the expansion work of refrigerant, and the air-breathing end pressure of compressor is promoted by injector, improves the Energy Efficiency Ratio of air-conditioning system under worst cold case.To meet the needs of air-conditioning system high load capacity, high pressure ratio, solve the problems, such as that refrigerating capacity under high load capacity operating condition, heating capacity are insufficient and efficiency is low.
Description
Technical field
The present invention relates to technical field of refrigeration equipment, in particular to a kind of air-conditioning system.
Background technique
Multi-line system meets under low temperature environment frequently with two compressors or a Gas-supplying enthalpy-increasing compressor and makes at present
The demand of heat, as the subzero 20 DEG C of heating capacities of outdoor environment are unattenuated.
If at 50 DEG C or more or 20 DEG C subzero in outdoor environment temperature, the ability and efficiency of unit are difficult to accomplish not waning
Subtract.The compressor of bigger capacity, bigger high-low pressure ratio is then then needed with energy valid value to promote the ability of unit, or logical
Cross other approach optimization air-conditioning system.In addition there are biggish recyclable expansion works than big unit for high-low pressure, currently on the market
Unit non-recovery expansion work function, unit efficiency is low.
Summary of the invention
The embodiment of the invention provides a kind of air-conditioning system, with solve in the prior art air-conditioning system under high load capacity operating condition
The problem that refrigerating capacity, heating capacity are insufficient and efficiency is low.
The application embodiment provides a kind of air-conditioning system, comprising: compressor, four-way valve, indoor heat exchanger, outdoor are changed
Hot device, gas-liquid separator, injector and triple valve；The suction end of compressor and the exhaust outlet of gas-liquid separator connect, compressor
Exhaust end and the first interface of four-way valve connect, the second interface of four-way valve connect with outdoor heat exchanger by the first pipeline,
The third interface of four-way valve is connect with indoor heat exchanger by the second pipeline, and the 4th interface of four-way valve and the first of injector enter
Mouth is connected by third pipeline；The first interface of triple valve and the first leakage fluid dram of gas-liquid separator are connected by the 4th pipeline,
The second interface of triple valve is connect with indoor heat exchanger by the 5th pipeline, and the third interface of triple valve and the second of injector enter
Mouth is connected by the 6th pipeline, and the second entrance of outdoor heat exchanger and injector passes through the 7th pipeline and connects, the outlet of injector
It is connect with the input port of gas-liquid separator by the 8th pipeline, the second leakage fluid dram of gas-liquid separator and outdoor heat exchanger pass through the
The connection of nine pipelines.
In one embodiment, air-conditioning system further includes flash evaporation, and the 6th pipeline and the 7th pipeline pass through flash evaporation,
The exhaust outlet of flash evaporation is connect with compressor by the tenth pipeline.
In one embodiment, compressor is compound compressor, between the exhaust outlet and compound compressor of flash evaporation
Pipeline is connected.
In one embodiment, compressor includes the low-pressure stage compressor and high pressure stage compressor of concatenation, low-pressure stage pressure
The suction end of contracting machine is connected with the exhaust outlet of gas-liquid separator, the exhaust end of low-pressure stage compressor and the air-breathing of high pressure stage compressor
End is connected, and the exhaust end of high pressure stage compressor is connected with the first pipeline, the exhaust outlet and low-pressure stage compressor and high pressure of flash evaporation
Pipeline between grade compressor is connected.
In one embodiment, compressor is Gas-supplying enthalpy-increasing compressor, and the exhaust outlet and Gas-supplying enthalpy-increasing of flash evaporation compress
The gas supplementing opening of machine is connected.
In one embodiment, indoor heat exchanger is multiple, and multiple indoor heat exchangers are arranged in parallel.
In one embodiment, indoor heat exchanger is two, including the first indoor heat exchanger and the second indoor heat exchanger,
First indoor heat exchanger and the second indoor heat exchanger are connected in parallel.
In one embodiment, the 6th pipeline and the 7th pipeline have part pipeline to share at flash evaporation, in the 7th pipe
Upstream on line positioned at flash evaporation is provided with the first valve, and the downstream on the 7th pipeline positioned at flash evaporation is provided with the second valve
Door, the downstream on the 6th pipeline positioned at flash evaporation are provided with third valve, are provided with the 4th valve on the 9th pipeline.
In one embodiment, air-conditioning system further includes the first expansion valve and the second expansion valve, the first expansion valve and room
External heat exchanger is connected, and the second expansion valve is connected with indoor heat exchanger.
In one embodiment, the heat exchanger of indoor heat exchanger and/or outdoor heat exchanger is air-cooled heat exchanger or water
Cold type heat exchanger.
In the above-described embodiments, when air-conditioning system works, injector uses the expansion work of refrigerant, by injection
Device promotes the air-breathing end pressure of compressor, improves air-conditioning system Energy Efficiency Ratio under worst cold case.To meet air-conditioning system high load capacity, height
The demand of pressure ratio solves the problems, such as that refrigerating capacity under high load capacity operating condition, heating capacity are insufficient and efficiency is low.Meanwhile injector is not
Moving component is not necessarily to power consumption, and the electricity that common operating condition need to be only provided to the system can reach ability need under bad working environments,
Electric energy is saved, system reliability is improved.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the overall structure diagram of the embodiment of air-conditioning system according to the present invention；
Fig. 2 is the schematic diagram of the refrigerating state of the embodiment of the air-conditioning system of Fig. 1；
Fig. 3 is the schematic diagram of the heating state of the embodiment of the air-conditioning system of Fig. 1.
Specific embodiment
To make the objectives, technical solutions, and advantages of the present invention clearer, right below with reference to embodiment and attached drawing
The present invention is described in further details.Here, exemplary embodiment and its explanation of the invention is used to explain the present invention, but simultaneously
It is not as a limitation of the invention.
Fig. 1 shows the embodiment of air-conditioning system of the invention, which includes compressor 10, four-way valve, interior
Heat exchanger 20, outdoor heat exchanger 30, gas-liquid separator 40, injector 50 and triple valve 60.The suction end and gas-liquid of compressor 10
The exhaust outlet of separator 40 connects, and the exhaust end of compressor 10 and the first interface of four-way valve connect, the second interface of four-way valve
It is connect with outdoor heat exchanger 30 by the first pipeline 81, the third interface and indoor heat exchanger 20 of four-way valve pass through the second pipeline 82
4th interface of connection, four-way valve is connect with the first entrance of injector 50 by third pipeline 83.The first of triple valve 60 connects
Mouth is connect with the first leakage fluid dram of gas-liquid separator 40 by the 4th pipeline 84, the second interface and indoor heat exchanger of triple valve 60
20 are connected by the 5th pipeline 85, and the third interface of triple valve 60 and the second entrance of injector 50 are connected by the 6th pipeline 86
It connects, outdoor heat exchanger 30 is connect with the second entrance of injector 50 by the 7th pipeline 87, the outlet of injector 50 and gas-liquid point
Input port from device 40 is connected by the 8th pipeline 88, and the second leakage fluid dram and outdoor heat exchanger 30 of gas-liquid separator 40 pass through the
The connection of nine pipelines 89.
When air-conditioning system carries out refrigeration cycle, as shown in Fig. 2, the intermediate low-pressure gas warp come out from gas-liquid separator 40
Compressor 10 is high-pressure gaseous refrigerant after compressing, after through four-way valve and the first pipeline 81 be to the condensation heat release of outdoor heat exchanger 30
Liquid refrigerants, then 50 second entrance of injector is entered by the 7th pipeline 87.The intermediate low-pressure liquid of 40 bottom of gas-liquid separator is cold
Matchmaker arrives triple valve 60 through the 4th pipeline 84, then is entered the room after heat exchanger 20 absorbs heat by triple valve 60 and the 5th pipeline 85 as low pressure
Gas phase refrigerant is entered the first entrance of injector 50 by the second pipeline 82 through four-way valve and third pipeline 83 later.
Middle pressure liquid refrigerants into 50 second entrance of injector is depressured speedup through the nozzle of injector 50, calms the anger to be ultralow
Two phase refrigerant of liquid, then suction chamber is flowed into, cause suction chamber parital vacuum.By siphonage, after the heat absorption of indoor heat exchanger 20
Low-pressure vapor phase refrigerant by nozzle decompression speedup two phase refrigerants drive under flow into together suction chamber decompression mixed heat transfer,
Mixing refrigerant sprays the gas-liquid two-phase state refrigerant of intermediate low pressure after the pressurization of the diffusion chamber of injector 50 later.Injector 50 sprays
Gas-liquid two-phase state refrigerant via the 8th pipeline 88 enter gas-liquid separator 40 carry out gas-liquid separation, the intermediate low pressure gas isolated
Body refrigerant enters the suction end of compressor 10, and the intermediate low-pressure liquid refrigerant isolated enters the room heat exchanger 20 through triple valve 60
Low-pressure side participates in circulation.
When air-conditioning system carries out heating circulation, as shown in figure 3, the intermediate low-pressure gas come out from gas-liquid separator 40 is cold
Matchmaker through 10 boil down to high-pressure gaseous refrigerant of compressor, after enter the room the condensation of heat exchanger 20 through four-way valve and the second pipeline 82 and put
Heat is high-pressure liquid refrigerant, then triple valve 60 is flow to after the decompression of the 5th pipeline 85, then enter injector 50 by the 6th pipeline 86
Second entrance.The intermediate low-pressure liquid refrigerant of 40 bottom of gas-liquid separator is the lower low pressure gas of pressure through the decompression of the 9th pipeline 89
Liquid two-phase refrigerant, into outdoor heat exchanger 30 absorb heat after be low-pressure vapor phase refrigerant, after through the first pipeline 81 to four-way valve, then by
Third pipeline 83 enters the first entrance of injector 50.
Middle pressure liquid refrigerants into 50 second entrance of injector is depressured speedup through the nozzle of injector 50, calms the anger to be ultralow
Two phase refrigerant of liquid, then suction chamber is flowed into, cause suction chamber parital vacuum.By siphonage, after the heat absorption of outdoor heat exchanger 30
Low-pressure vapor phase refrigerant by nozzle decompression speedup two phase refrigerants drive under flow into together suction chamber decompression mixed heat transfer,
Mixing refrigerant sprays the gas-liquid two-phase state refrigerant of intermediate low pressure after the pressurization of the diffusion chamber of injector 50 later.Injector 50 sprays
Gas-liquid two-phase state refrigerant via the 8th pipeline 88 enter gas-liquid separator 40 carry out gas-liquid separation, the intermediate low pressure gas isolated
Body refrigerant enters compressor 10, and the intermediate low-pressure liquid refrigerant isolated enters 30 low-pressure side of outdoor heat exchanger through the 9th pipeline 89
Participate in circulation.
Using technical solution of the present invention, in air-conditioning system work, injector 50 uses the expansion work of refrigerant,
The air-breathing end pressure of compressor 10 is promoted by injector 50, improves the Energy Efficiency Ratio of air-conditioning system under worst cold case.To meet sky
The demand of adjusting system high load capacity, high pressure ratio solves the problems, such as that refrigerating capacity under high load capacity operating condition, heating capacity are insufficient and efficiency is low.
Meanwhile injector 50 is not moving component, is not necessarily to power consumption, the electricity that common operating condition need to be only provided to the system can reach severe
Electric energy is saved in ability need under operating condition, improves system reliability.
As shown in Figure 1, as a preferred embodiment, in the inventive solutions, air-conditioning system further includes
Flash evaporation 70, the 6th pipeline 86 and the 7th pipeline 87 pass through flash evaporation 70, and exhaust outlet and the compressor 10 of flash evaporation 70 pass through
The connection of tenth pipeline 810.Refrigerant is provided by flash evaporation 80 to gasify rapidly and the space of gas-liquid separation.More preferably, the 6th
Pipeline f flows through flash evaporation 80.
Optionally, compressor 10 is compound compressor, the pipeline phase between the exhaust outlet and compound compressor of flash evaporation 70
Even.As a preferred embodiment, in the technical scheme of this embodiment, as shown in Figure 1, compressor 10 includes concatenation
Low-pressure stage compressor 11 and high pressure stage compressor 12, the exhaust outlet phase of the suction end and gas-liquid separator 40 of low-pressure stage compressor 11
Even, the exhaust end of low-pressure stage compressor 11 is connected with the suction end of high pressure stage compressor 12.The exhaust end of high pressure stage compressor 12
It is connected with the first pipeline 81, the exhaust outlet of flash evaporation 70 and the pipeline phase between low-pressure stage compressor 11 and high pressure stage compressor 12
Even.
When air-conditioning system carries out refrigeration cycle, as shown in Fig. 2, the intermediate low-pressure gas come out from gas-liquid separator 40 is cold
Matchmaker is medium pressure refrigerant gas after low-pressure stage compressor 11 carries out first compression, with the medium pressure refrigerant gas come out from flash evaporation 70
Mixed heat transfer, i.e. gas coolant after first compression are cooled, the heat absorption of flash gas refrigerant.Mixed gaseous refrigerant is through hiigh pressure stage pressure
Be high-pressure gaseous refrigerant after 12 second-compressed of contracting machine, after to condense heat release through four-way valve and outdoor heat exchanger 30 be that high-pressure liquid is cold
Matchmaker, then flash evaporation 70 is flowed into after 95 reducing pressure by regulating flow of the first expansion valve, the gaseous coolant of shwoot and middle pressure after one stage of compression are cold
Matchmaker's mixed heat transfer, the middle pressure liquid refrigerants of flash evaporation 70 then enter 50 second entrance of injector through the 7th pipeline 87.
When air-conditioning system carries out heating circulation, as shown in figure 3, the intermediate low-pressure gas come out from gas-liquid separator 40 is cold
Matchmaker is medium pressure refrigerant gas after low-pressure stage compressor 11 carries out first compression, with the medium pressure refrigerant gas come out from flash evaporation 70
Mixed heat transfer, i.e. gas coolant after first compression are cooled, the heat absorption of flash gas refrigerant.Mixed gaseous refrigerant is through hiigh pressure stage pressure
Be high-pressure gaseous refrigerant after 12 second-compressed of contracting machine, after enter in the first indoor heat exchanger 21 and second Room through four-way valve and exchange heat
It is high-pressure liquid refrigerant that device 22, which condenses heat release, then enters after 85 reducing pressure by regulating flow of the 5th pipeline and flow to triple valve 60 and flow into shwoot again
Device 70, the gaseous coolant of shwoot and the middle pressure refrigerant mixed heat transfer after one stage of compression, the middle pressure liquid refrigerants of flash evaporation 70 then pass through
6th pipeline 86 enters 50 second entrance of injector.
As other optional embodiments, compressor 10 or Gas-supplying enthalpy-increasing compressor 10, flash evaporation 70
Exhaust outlet is connected with the gas supplementing opening of Gas-supplying enthalpy-increasing compressor 10.
As shown in Figure 1, as a preferred embodiment, in the inventive solutions, indoor heat exchanger 20 is
Multiple, multiple indoor heat exchangers 20 are arranged in parallel.The technical solution is adapted to multi-online air-conditioning system.Optionally, in this implementation
In the technical solution of example, indoor heat exchanger 20 is two, including the first indoor heat exchanger 21 and the second indoor heat exchanger 22, first
Indoor heat exchanger 21 and the second indoor heat exchanger 22 are connected in parallel.
As a preferred embodiment, as shown in Figure 1, the 6th pipeline 86 and the 7th pipeline 87 have at flash evaporation 70
Part pipeline shares, and the upstream on the 7th pipeline 87 positioned at flash evaporation 70 is provided with the first valve 91, on the 7th pipeline 87
The downstream of flash evaporation 70 is provided with the second valve 92, the downstream on the 6th pipeline 86 positioned at flash evaporation 70 is provided with third
Valve 93 is provided with the 4th valve 94 on the 9th pipeline 89.First valve 91, the second valve 92, third valve 93 and the 4th
Valve 94 is used to control the opening and closing of respective lines, to be suitable for the control of the heating mode and refrigeration mode of the air-conditioning system.It is excellent
Choosing, the first valve 91, the second valve 92, third valve 93 and the 4th valve 94 are solenoid valve.
More preferably, air-conditioning system further includes the first expansion valve 95 and the second expansion valve 96, the first expansion valve 95 and room
External heat exchanger 30 is connected, and the second expansion valve 96 is connected with indoor heat exchanger 20.First expansion valve 95 and the second expansion valve 96 are used for
The aperture of pipeline is adjusted, to adjust the pressure of refrigerant in pipeline, refrigerant is allowed more easily to realize condensation or evaporation.Preferably,
One expansion valve 95 and the second expansion valve 96 are electric expansion valve.It is directed to the first indoor heat exchanger 21 and the second indoor heat exchanger 22
Second expansion valve 96 is two, is connected respectively with the first indoor heat exchanger 21 and the second indoor heat exchanger 22.
Based on above-mentioned valve and expansion valve, when controlling the air-conditioning system of the present embodiment:
When air-conditioning system carries out refrigeration cycle, as shown in Fig. 2, the second valve 92, the first valve 91 are opened, the 4th valve
94, third valve 93 is closed, and four-way valve and triple valve 60 commutate as shown.The intermediate low-pressure gas come out from gas-liquid separator 40
Refrigerant through low-pressure stage compressor 11 carry out first compression after be medium pressure refrigerant gas, with from flash evaporation 70 come out medium pressure gas it is cold
Matchmaker's mixed heat transfer, i.e. gas coolant after first compression are cooled, the heat absorption of flash gas refrigerant.Mixed gaseous refrigerant is through hiigh pressure stage
Be high-pressure gaseous refrigerant after 12 second-compressed of compressor, after to condense heat release through four-way valve and outdoor heat exchanger 30 be high-pressure liquid
Refrigerant, then flash evaporation 70, the gaseous coolant of shwoot and the middle pressure after one stage of compression are flowed into after 95 reducing pressure by regulating flow of the first expansion valve
Refrigerant mixed heat transfer, the middle pressure liquid refrigerants of flash evaporation 70 then enter 50 second entrance of injector through the second valve 92.Gas-liquid point
It is lower for pressure through triple valve 60 and two 96 reducing pressure by regulating flow of the second expansion valve from the intermediate low-pressure liquid refrigerant of 40 bottom of device
Low-pressure gas-liquid two-phase refrigerant is low-pressure vapor phase refrigerant after absorbing heat into the first indoor heat exchanger 21 and the second indoor heat exchanger 22,
After enter the first entrance of injector 50 through four-way valve.
Middle pressure liquid refrigerants into 50 second entrance of injector is depressured speedup through the nozzle of injector 50, calms the anger to be ultralow
Two phase refrigerant of liquid, then suction chamber is flowed into, cause suction chamber parital vacuum；By siphonage, through 21 He of the first indoor heat exchanger
Second indoor heat exchanger 22 heat absorption after low-pressure vapor phase refrigerant by nozzle decompression speedup two phase refrigerants drive under together
It flows into suction chamber and is depressured mixed heat transfer, mix the gas-liquid that refrigerant sprays intermediate low pressure after the pressurization of the diffusion chamber of injector 50 later
Two phase refrigerants.The gas-liquid two-phase state refrigerant that injector 50 sprays enters gas-liquid separator 40 and carries out gas-liquid separation, isolates
Intermediate low-pressure gas refrigerant enters low-pressure stage compressor 11, and the intermediate low-pressure liquid refrigerant isolated is through triple valve 60 and two
Two expansion valves 96 enter the room 20 low-pressure side of heat exchanger and participate in circulation.
When air-conditioning system carries out heating circulation, as shown in figure 3, the 4th valve 94, third valve 93 are opened, the second valve
92, the first valve 91 is closed, and four-way valve and triple valve 60 commutate as shown.The intermediate low-pressure gas come out from gas-liquid separator 40
Refrigerant through low-pressure stage compressor 11 carry out first compression after be medium pressure refrigerant gas, with from flash evaporation 70 come out medium pressure gas it is cold
Matchmaker's mixed heat transfer, i.e. gas coolant after first compression are cooled, the heat absorption of flash gas refrigerant.Mixed gaseous refrigerant is through hiigh pressure stage
Be high-pressure gaseous refrigerant after 12 second-compressed of compressor, after enter in the first indoor heat exchanger 21 and second Room through four-way valve and change
It is high-pressure liquid refrigerant that hot device 22, which condenses heat release, then enters 30 system of outdoor heat exchanger after two 96 reducing pressure by regulating flow of the second expansion valve
System flows into flash evaporation 70, the gaseous coolant of shwoot and the middle pressure refrigerant mixed heat transfer after one stage of compression, flash evaporation through triple valve 60
70 middle pressure liquid refrigerants then enters 50 second entrance of injector through third valve 93.
The intermediate low-pressure liquid refrigerant first through the 4th valve 94 and outdoor heat exchanger 30 of 40 bottom of gas-liquid separator is swollen
Swollen 95 reducing pressure by regulating flow of valve is the lower low-pressure gas-liquid two-phase refrigerant of pressure, cold for low-pressure vapor phase after absorbing heat into outdoor heat exchanger 30
Matchmaker, after enter the first entrance of injector 50 through four-way valve.
Middle pressure liquid refrigerants into 50 second entrance of injector is depressured speedup through the nozzle of injector 50, calms the anger to be ultralow
Two phase refrigerant of liquid, then suction chamber is flowed into, cause suction chamber parital vacuum；By siphonage, after the heat absorption of outdoor heat exchanger 30
Low-pressure vapor phase refrigerant by nozzle decompression speedup two phase refrigerants drive under flow into together suction chamber decompression mixed heat transfer,
Mixing refrigerant sprays the gas-liquid two-phase state refrigerant of intermediate low pressure after the pressurization of the diffusion chamber of injector 50 later.Injector 50 sprays
Gas-liquid two-phase state refrigerant enter gas-liquid separator 40 and carry out gas-liquid separation, the intermediate low-pressure gas refrigerant isolated enters low pressure
Grade compressor 11, first expansion valve 95 of the intermediate low-pressure liquid refrigerant through the 4th valve 94 and outdoor heat exchanger 30 isolated into
Enter 30 low-pressure side of outdoor heat exchanger and participates in circulation.
It should be noted that in technical solution of the present invention, the heat exchanger of indoor heat exchanger 20 and outdoor heat exchanger 30 is
Air-cooled heat exchanger, or water-cooled heat exchanger.
Optionally, indoor heat exchanger 20 and outdoor heat exchanger 30 are finned heat exchanger.As other optional implementations
Mode, indoor heat exchanger 20 and outdoor heat exchanger 30 or shell and tube exchanger.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the embodiment of the present invention can have various modifications and variations.All within the spirits and principles of the present invention, made
Any modification, equivalent substitution, improvement and etc. should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of air-conditioning system characterized by comprising compressor (10), four-way valve, indoor heat exchanger (20), outdoor heat exchange
Device (30), gas-liquid separator (40), injector (50) and triple valve (60)；
The suction end of the compressor (10) is connect with the exhaust outlet of the gas-liquid separator (40), the row of the compressor (10)
Gas end is connect with the first interface of the four-way valve, and the second interface of the four-way valve and the outdoor heat exchanger (30) pass through the
The third interface of one pipeline (81) connection, the four-way valve is connect with the indoor heat exchanger (20) by the second pipeline (82),
4th interface of the four-way valve is connect with the first entrance of the injector (50) by third pipeline (83)；
The first interface of the triple valve (60) and first leakage fluid dram of the gas-liquid separator (40) pass through the 4th pipeline (84)
The second interface of connection, the triple valve (60) is connect with the indoor heat exchanger (20) by the 5th pipeline (85), and described three
The third interface of port valve (60) is connect with the second entrance of the injector (50) by the 6th pipeline (86), the outdoor heat exchange
Device (30) is connect with the second entrance of the injector (50) by the 7th pipeline (87), the outlet of the injector (50) and institute
The input port of gas-liquid separator (40) is stated to connect by the 8th pipeline (88), the second leakage fluid dram of the gas-liquid separator (40) with
The outdoor heat exchanger (30) is connected by the 9th pipeline (89).
2. air-conditioning system according to claim 1, which is characterized in that the air-conditioning system further includes flash evaporation (70), institute
State the 6th pipeline (86) and the 7th pipeline (87) by the flash evaporation (70), the exhaust outlet of the flash evaporation (70) with
The compressor (10) is connected by the tenth pipeline (810).
3. air-conditioning system according to claim 2, which is characterized in that the compressor (10) is compound compressor, described
The exhaust outlet of flash evaporation (70) is connected with the pipeline between the compound compressor.
4. air-conditioning system according to claim 3, which is characterized in that the compressor (10) includes the low-pressure stage pressure of concatenation
Contracting machine (11) and high pressure stage compressor (12), suction end and the gas-liquid separator (40) of the low-pressure stage compressor (11)
Exhaust outlet is connected, and the exhaust end of the low-pressure stage compressor (11) is connected with the suction end of the high pressure stage compressor (12), institute
The exhaust end for stating high pressure stage compressor (12) is connected with first pipeline (81), the exhaust outlet of the flash evaporation (70) with it is described
Pipeline between low-pressure stage compressor (11) and the high pressure stage compressor (12) is connected.
5. air-conditioning system according to claim 2, which is characterized in that the compressor (10) is Gas-supplying enthalpy-increasing compressor
(10), the exhaust outlet of the flash evaporation (70) is connected with the gas supplementing opening of the Gas-supplying enthalpy-increasing compressor (10).
6. air-conditioning system according to claim 1, which is characterized in that the indoor heat exchanger (20) is multiple, Duo Gesuo
Indoor heat exchanger (20) is stated to be arranged in parallel.
7. air-conditioning system according to claim 6, which is characterized in that the indoor heat exchanger (20) is two, including the
Heat exchange in one indoor heat exchanger (21) and the second indoor heat exchanger (22), first indoor heat exchanger (21) and the second Room
Device (22) is connected in parallel.
8. air-conditioning system according to claim 2, which is characterized in that the 6th pipeline (86) and the 7th pipeline
(87) part pipeline shares at the flash evaporation (70), positioned at the flash evaporation (70) on the 7th pipeline (87)
Upstream is provided with the first valve (91), and the downstream on the 7th pipeline (87) positioned at the flash evaporation (70) is provided with second
Valve (92), the downstream on the 6th pipeline (86) positioned at the flash evaporation (70) is provided with third valve (93), described
The 4th valve (94) is provided on 9th pipeline (89).
9. air-conditioning system according to claim 1, which is characterized in that the air-conditioning system further includes the first expansion valve (95)
With the second expansion valve (96), first expansion valve (95) is connected with the outdoor heat exchanger (30), second expansion valve
(96) it is connected with the indoor heat exchanger (20).
10. air-conditioning system according to claim 1, which is characterized in that the indoor heat exchanger (20) and/or outdoor heat exchange
The heat exchanger of device (30) is air-cooled heat exchanger or water-cooled heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810891485.6A CN109307378A (en) | 2018-08-07 | 2018-08-07 | Air-conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810891485.6A CN109307378A (en) | 2018-08-07 | 2018-08-07 | Air-conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109307378A true CN109307378A (en) | 2019-02-05 |
Family
ID=65226015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810891485.6A Withdrawn CN109307378A (en) | 2018-08-07 | 2018-08-07 | Air-conditioning system |
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| Country | Link |
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| CN (1) | CN109307378A (en) |
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