CN208779748U - air conditioning system - Google Patents
air conditioning system Download PDFInfo
- Publication number
- CN208779748U CN208779748U CN201821270814.7U CN201821270814U CN208779748U CN 208779748 U CN208779748 U CN 208779748U CN 201821270814 U CN201821270814 U CN 201821270814U CN 208779748 U CN208779748 U CN 208779748U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- pipeline
- conditioning system
- gas
- air
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The present application provides an air conditioning system. The air conditioning system comprises a compressor, a four-way valve, an indoor heat exchanger, an outdoor heat exchanger, a gas-liquid separator and an ejector. And a liquid outlet of the gas-liquid separator is connected with the outdoor heat exchanger through a fifth pipeline, the indoor heat exchanger is connected with a first inlet of the ejector through a sixth pipeline, the outdoor heat exchanger is connected with a second inlet of the ejector through a seventh pipeline, and an outlet of the ejector is connected with an input port of the gas-liquid separator through an eighth pipeline. Adopt the technical scheme of the utility model, when heating, the sprayer utilizes the inflation merit of refrigerant, promotes the end pressure of breathing in of compressor with the help of the sprayer, improves air conditioning system's under the low temperature operating mode heating capacity and energy efficiency ratio. The requirements of high load and high pressure ratio of the air conditioning system are met, and the heating capacity and the energy efficiency ratio of the air conditioning system in a low-temperature environment are improved.
Description
Technical field
The utility model 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 15 DEG C of heating capacities of outdoor environment are unattenuated.
But in the lower situation of outdoor environment temperature, the heating capacity and efficiency specific damping of air-conditioning system are big.To be promoted
The low-temperature heating capacity and Energy Efficiency Ratio of unit then need the compressor of bigger capacity, bigger high-low pressure ratio.And existing compression
Machine capacity and high-low pressure ratio are also limited, and which results in the heating performances of air-conditioning system to be difficult to further increase.
Utility model content
The utility model embodiment provides a kind of air-conditioning system, with solve in the prior art air-conditioning system in outdoor environment
Heating capacity and the excessive technical problem of Energy Efficiency Ratio attenuation in the case that temperature is too 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 and injector；
The suction end of compressor and the exhaust outlet of gas-liquid separator connect, and the exhaust end of compressor and the first of four-way valve connect
Mouth connection, the second interface of four-way valve are connect with outdoor heat exchanger by the first pipeline, and third interface and the interior of four-way valve are changed
Hot device is connected by the second pipeline, and the 4th interface of four-way valve and the input port of gas-liquid separator are connected by third pipeline, room
External heat exchanger is connect with indoor heat exchanger by the 4th pipeline；The leakage fluid dram and outdoor heat exchanger of gas-liquid separator pass through the 5th pipe
The first entrance of line connection, indoor heat exchanger and injector is connected by the 6th pipeline, and the second of outdoor heat exchanger and injector
Entrance is connected by the 7th pipeline, and the outlet of injector and the input port of gas-liquid separator are connected by the 8th pipeline.
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 and the exhaust outlet of gas-liquid separator connect, and the exhaust end of high pressure stage compressor and the first interface of four-way valve connect
It connects.
In one embodiment, air-conditioning system further includes flash evaporation, and flash evaporation is arranged on the 4th pipeline, flash evaporation
It is connected between exhaust outlet and low-pressure stage compressor and high pressure stage compressor by the 9th pipeline.
In one embodiment, the 6th pipeline flows through flash evaporation.
In one embodiment, compressor is Gas-supplying enthalpy-increasing compressor.
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, it is provided on the first pipeline on the first valve and/or the 4th pipeline and is provided with the second valve
It is provided on third valve and/or the 8th pipeline on door and/or the 5th pipeline and is provided with the 4th valve.
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 the above-described embodiments, in heating, injector uses the expansion work of refrigerant, is promoted and is pressed by injector
The air-breathing end pressure of contracting machine improves the heating capacity and Energy Efficiency Ratio of air-conditioning system under worst cold case.With meet air-conditioning system high load capacity,
The demand of high pressure ratio promotes the heating capacity and Energy Efficiency Ratio of air-conditioning system under low temperature environment.Meanwhile injector is not moving component,
Without power consumption, the electricity that common operating condition need to be only provided to the system can reach ability need under bad working environments, save electric energy,
Improve system reliability.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide a further understanding of the present invention, the utility model
Illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.In attached drawing
In:
Fig. 1 is the overall structure diagram of the embodiment of air-conditioning system according to the present utility model；
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
For the purpose of this utility model, technical solution and advantage is more clearly understood, below with reference to embodiment and attached
Figure, is described in further details the utility model.Here, the exemplary embodiment and its explanation of the utility model are for solving
The utility model is released, but is not intended to limit the scope of the present invention.
Fig. 1 shows the embodiment of the air-conditioning system of the utility model, the air-conditioning system include compressor 10, four-way valve,
Indoor heat exchanger 20, outdoor heat exchanger 30, gas-liquid separator 40 and injector 50.The suction end and gas-liquid separator of compressor 10
40 exhaust outlet connection, the exhaust end of compressor 10 and the first interface of four-way valve connect, the second interface of four-way valve and outdoor
Heat exchanger 30 is connect with indoor heat exchanger 20 by the second line b by the first pipeline a connection, the third interface of four-way valve, and four
4th interface of port valve is connect with the input port of gas-liquid separator 40 by third line c, outdoor heat exchanger 30 and indoor heat exchange
Device 20 passes through the 4th pipeline d connection.The leakage fluid dram of gas-liquid separator 40 is connect with outdoor heat exchanger 30 by the 5th pipeline e, room
Interior heat exchanger 20 is connect with the first entrance of injector 50 by the 6th pipeline f, and the second of outdoor heat exchanger 30 and injector 50
By the 7th pipeline g connection, the outlet of injector 50 is connect with the input port of gas-liquid separator 40 by the 8th pipeline h entrance.
As shown in Fig. 2, the intermediate low-pressure gas refrigerant come out from gas-liquid separator 40 is through compressor 10 in refrigerating operaton
Be high-pressure gaseous refrigerant after compression, after through four-way valve and the first pipeline a, condensing heat release by outdoor heat exchanger 30 is high-pressure liquid
Refrigerant.20 sweat cooling of indoor heat exchanger is flowed into through the 4th pipeline d again, four-way valve is passed through by the second line b later, using the
Three line cs flow into gas-liquid separator 40.
As shown in figure 3, the intermediate low-pressure gas refrigerant come out from gas-liquid separator 40 is through compressor pressure in heating operation
Be condensed to high-pressure gaseous refrigerant, after through four-way valve and the second line b enter the room heat exchanger 20 condense heat release be high-pressure liquid it is cold
Matchmaker, then enter through the 6th pipeline f the first entrance of injector 50.The intermediate low-pressure liquid refrigerant of 40 bottom of gas-liquid separator is through
Five pipeline e enter after outdoor heat exchanger 30 absorbs heat for low-pressure vapor phase refrigerant, enter the second entrance of injector 50 later.Into injection
The middle pressure liquid refrigerants of 50 first entrance of device is depressured speedup through the nozzle of injector 50, is ultralow pressure gas-liquid two-phase state refrigerant, then
Suction chamber is flowed into, suction chamber parital vacuum is caused.By siphonage, the low-pressure vapor phase refrigerant after the heat absorption of outdoor heat exchanger 30 exists
Suction chamber decompression mixed heat transfer is flowed under drive by two phase refrigerants of nozzle decompression speedup together, mixes refrigerant later through spraying
The gas-liquid two-phase state refrigerant of intermediate low pressure is sprayed after the diffusion chamber pressurization of emitter 50.The intermediate low-pressure gas-liquid two that injector 50 sprays
Phase refrigerant enters gas-liquid separator 40 through the 8th pipeline h and carries out gas-liquid separation, and the intermediate low-pressure gas refrigerant isolated enters
Compressor 10, the intermediate low-pressure liquid refrigerant isolated enter outdoor heat exchanger 30 through the 5th pipeline e and participate in circulation.
Using the technical solution of the utility model, in heating, injector 50 uses the expansion work of refrigerant, by
Injector 50 promotes the air-breathing end pressure of compressor 10, improves the heating capacity and Energy Efficiency Ratio of air-conditioning system under worst cold case.With full
The demand of sufficient air-conditioning system high load capacity, high pressure ratio promotes the heating capacity and Energy Efficiency Ratio of air-conditioning system under low temperature environment.Meanwhile it spraying
Emitter 50 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 under bad working environments
Ability need, save electric energy, improve system reliability.
As shown in Figure 1, as a preferred embodiment, compressor 10 wraps in the technical solution of the utility model
Include the low-pressure stage compressor and high pressure stage compressor of concatenation, the suction end of low-pressure stage compressor and the exhaust outlet of gas-liquid separator 40
Connection, the exhaust end of high pressure stage compressor and the first interface of four-way valve connect.When in use, it is come out from gas-liquid separator 40
Intermediate low-pressure gas refrigerant is medium pressure refrigerant gas after low-pressure stage compressor carries out first compression, then through high pressure stage compressor two
It can be high-pressure gaseous refrigerant after second compression, improve refrigerant compression efficiency.
More preferably, air-conditioning system further includes flash evaporation 80, and flash evaporation 80 is arranged on the 4th pipeline d, flash evaporation 80
Exhaust outlet and low-pressure stage compressor and high pressure stage compressor between by the 9th pipeline connect i.It is provided by flash evaporation 80 cold
Matchmaker is gasified rapidly and the space of gas-liquid separation.More preferably, the 6th pipeline f flows through flash evaporation 80.
In refrigeration, the intermediate low-pressure gas refrigerant come out from gas-liquid separator 40 is once pressed through low-pressure stage compressor
It is medium pressure refrigerant gas after contracting, connect the medium pressure refrigerant gas mixed heat transfer that i comes out with the 9th pipeline being connected from flash evaporation 80,
Gas coolant i.e. after first compression is cooled, the heat absorption of flash gas refrigerant.Mixed gaseous refrigerant is secondary through high pressure stage compressor
It is high-pressure gaseous refrigerant after compression, presses liquid refrigerants then to flow out outdoor heat exchanger 30 in flash evaporation 80 and enter the room heat exchanger 20
Liquid pipe.
In heating, the intermediate low-pressure gas refrigerant come out from gas-liquid separator 40 is once pressed through low-pressure stage compressor
It is medium pressure refrigerant gas after contracting, connect the medium pressure refrigerant gas mixed heat transfer that i comes out with the 9th pipeline being connected from flash evaporation 80,
Gas coolant i.e. after first compression is cooled, the heat absorption of flash gas refrigerant.Mixed gaseous refrigerant is secondary through high pressure stage compressor
After compression be high-pressure gaseous refrigerant, after through four-way valve enter the first indoor heat exchanger 21 and the second indoor heat exchanger 22 condensation put
Heat is high-pressure liquid refrigerant, then enters 30 system of outdoor heat exchanger after 20 second expansion valve of indoor heat exchanger, 72 reducing pressure by regulating flow,
Flow into flash evaporation 80, the gaseous coolant of shwoot and the middle pressure refrigerant mixed heat transfer after one stage of compression, the middle hydraulic fluid state of flash evaporation 80
Refrigerant then enters 50 first entrance of injector.
As other optional embodiments, in addition to the technical side using above-mentioned double-stage compressor cooperation flash evaporation 80
Case, it is also feasible that compressor 10, which is selected as Gas-supplying enthalpy-increasing compressor 10,.
As shown in Figure 1, as a preferred embodiment, in the technical solution of the utility model, indoor heat exchanger
20 is multiple, and multiple indoor heat exchangers 20 are arranged in parallel.The technical solution is adapted to multi-online air-conditioning system.Optionally, at this
In the technical solution of embodiment, 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, being provided with the first valve 61, the 4th pipeline on the first pipeline a
It is provided with the second valve 62 on d, third valve 63 is provided on the 5th pipeline e, is provided with the 4th valve 64 on the 8th pipeline h.
First valve 61, the second valve 62, third valve 63 and the 4th valve 64 are used to control the opening and closing of respective lines, to be suitable for being somebody's turn to do
The control of the heating mode and refrigeration mode of air-conditioning system.Preferably, the first valve 61, the second valve 62,63 and of third valve
4th valve 64 is solenoid valve.
More preferably, air-conditioning system further includes the first expansion valve 71 and the second expansion valve 72, the first expansion valve 71 and room
External heat exchanger 30 is connected, and the second expansion valve 72 is connected with indoor heat exchanger 20.First expansion valve 71 and the second expansion valve 72 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 71 and the second expansion valve 72 are electric expansion valve.It is directed to the first indoor heat exchanger 21 and the second indoor heat exchanger 22
Second expansion valve 72 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:
In refrigeration, the first valve 61, the second valve 62 are opened；Third valve 63, the 4th valve 64 are closed, and four-way valve is such as
Commutation shown in Fig. 2.
The intermediate low-pressure gas refrigerant come out from gas-liquid separator 40 is after low-pressure stage compressor progress first compression
Gas coolant is pressed, with the medium pressure refrigerant gas mixed heat transfer come out from flash evaporation 80, i.e. gas coolant after first compression is cold
But, flash gas refrigerant absorbs heat.Mixed gaseous refrigerant is high-pressure gaseous refrigerant after high pressure stage compressor second-compressed.After pass through
It is high-pressure liquid refrigerant that four-way valve and outdoor heat exchanger 30, which condense heat release, then through 71 reducing pressure by regulating flow of the first expansion valve and the second valve
Flash evaporation 80, the gaseous coolant of shwoot and the middle pressure refrigerant mixed heat transfer after first compression, the middle hydraulic fluid of flash evaporation are flowed into after 62
State refrigerant then flows out outdoor heat exchanger 30 and enters the room heat exchanger 20.Middle pressure liquid refrigerants is through 20 second expansion valve of indoor heat exchanger
72 reducing pressure by regulating flow are low-pressure gas-liquid two-phase refrigerant, are low after absorbing heat into the first indoor heat exchanger 21 and the second indoor heat exchanger 22
Press gas phase refrigerant, after through four-way valve enter gas-liquid separator 40.
In heating, third valve 63, the 4th valve 64 are opened, and the first valve 61, the second valve 62 are closed, and four-way valve is such as
Commutation shown in Fig. 3.
The intermediate low-pressure gas refrigerant come out from gas-liquid separator 40 is after low-pressure stage compressor progress first compression
Gas coolant is pressed, with the medium pressure refrigerant gas mixed heat transfer come out from flash evaporation 80, i.e. gas coolant after first compression is cold
But, flash gas refrigerant absorbs heat.Mixed gaseous refrigerant after high pressure stage compressor second-compressed be high-pressure gaseous refrigerant, after pass through
It is high-pressure liquid refrigerant that four-way valve, which enters the first indoor heat exchanger 21 and the condensation heat release of the second indoor heat exchanger 22, then is changed through interior
Hot device 20 is entered 30 system of outdoor heat exchanger, flows into flash evaporation 80 after second expansion valve, 72 reducing pressure by regulating flow, the gaseous state of shwoot is cold
Matchmaker then enters injector 50 first and enters with the middle pressure refrigerant mixed heat transfer after one stage of compression, the middle pressure liquid refrigerants of flash evaporation 80
Mouthful.
The intermediate low-pressure liquid refrigerant of 40 bottom of gas-liquid separator is expanded through third valve 63 and outdoor heat exchanger 30 first
71 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 enters the second entrance of injector 50 later.
Middle pressure liquid refrigerants into 50 first 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.
The two phase refrigerant of intermediate low-pressure gas-liquid that injector 50 sprays enters gas-liquid separator through the 4th valve 64 of solenoid valve
40 carry out gas-liquid separation, and the intermediate low-pressure gas refrigerant isolated enters low-pressure stage compressor, the intermediate low-pressure liquid isolated
Refrigerant enters the participation of 30 heat exchanger low-pressure side of outdoor heat exchanger through third valve 63 and 30 first expansion valve 71 of outdoor heat exchanger and follows
Ring.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, the utility model embodiment can have various modifications and variations.All spirit in the utility model
Within principle, any modification, equivalent replacement, improvement and so on be should be included within the scope of protection of this utility model.
Claims (9)
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) and injector (50)；
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 the connection of one pipeline (a), the four-way valve is connect with the indoor heat exchanger (20) by the second pipeline (b), institute
The 4th interface for stating four-way valve is connect with the input port of the gas-liquid separator (40) by third pipeline (c), and the outdoor is changed
Hot device (30) is connect with the indoor heat exchanger (20) by the 4th pipeline (d)；
The leakage fluid dram of the gas-liquid separator (40) is connect with the outdoor heat exchanger (30) by the 5th pipeline (e), the room
Interior heat exchanger (20) is connect with the first entrance of the injector (50) by the 6th pipeline (f), the outdoor heat exchanger (30)
It is connect with the second entrance of the injector (50) by the 7th pipeline (g), the outlet and the gas-liquid of the injector (50)
The input port of separator (40) is connected by the 8th pipeline (h).
2. air-conditioning system according to claim 1, which is characterized in that the compressor (10) includes the low-pressure stage pressure of concatenation
The suction end of contracting machine and high pressure stage compressor, the low-pressure stage compressor is connect with the exhaust outlet of the gas-liquid separator (40),
The exhaust end of the high pressure stage compressor is connect with the first interface of the four-way valve.
3. air-conditioning system according to claim 2, which is characterized in that the air-conditioning system further includes flash evaporation (80), institute
It states flash evaporation (80) to be arranged on the 4th pipeline (d), the exhaust outlet and the low-pressure stage compressor of the flash evaporation (80)
Pass through the 9th pipeline connection (i) between the high pressure stage compressor.
4. air-conditioning system according to claim 3, which is characterized in that the 6th pipeline (f) flows through the flash evaporation
(80)。
5. air-conditioning system according to claim 1, which is characterized in that the compressor (10) is Gas-supplying enthalpy-increasing compressor.
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 1, which is characterized in that be provided with the first valve on first pipeline (a)
(61) and/or on the 4th pipeline (d) it is provided on the second valve (62) and/or the 5th pipeline (e) and is provided with
The 4th valve (64) is provided on three valves (63) and/or the 8th pipeline (h).
9. air-conditioning system according to claim 1, which is characterized in that the air-conditioning system further includes the first expansion valve (71)
With the second expansion valve (72), first expansion valve (71) is connected with the outdoor heat exchanger (30), second expansion valve
(72) it is connected with the indoor heat exchanger (20).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821270814.7U CN208779748U (en) | 2018-08-07 | 2018-08-07 | air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821270814.7U CN208779748U (en) | 2018-08-07 | 2018-08-07 | air conditioning system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208779748U true CN208779748U (en) | 2019-04-23 |
Family
ID=66156141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821270814.7U Active CN208779748U (en) | 2018-08-07 | 2018-08-07 | air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208779748U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800393A (en) * | 2018-08-07 | 2018-11-13 | 珠海格力电器股份有限公司 | air conditioning system |
| CN114688637A (en) * | 2022-03-24 | 2022-07-01 | 广东开利暖通空调股份有限公司 | Air conditioning system and control method |
-
2018
- 2018-08-07 CN CN201821270814.7U patent/CN208779748U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108800393A (en) * | 2018-08-07 | 2018-11-13 | 珠海格力电器股份有限公司 | air conditioning system |
| CN108800393B (en) * | 2018-08-07 | 2024-05-07 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN114688637A (en) * | 2022-03-24 | 2022-07-01 | 广东开利暖通空调股份有限公司 | Air conditioning system and control method |
| CN114688637B (en) * | 2022-03-24 | 2023-09-22 | 广东开利暖通空调股份有限公司 | Air conditioning system and control method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107860151B (en) | Heat pump system and air conditioner with same | |
| CN107178833B (en) | Heat recovery external machine system and air conditioning system | |
| CN108800678B (en) | Air Conditioning System | |
| WO2016000656A1 (en) | Air conditioning system | |
| CN108800393A (en) | air conditioning system | |
| CN203203289U (en) | Air conditioner | |
| CN109269136B (en) | Air conditioning system | |
| CN207422716U (en) | Heat pump system and air conditioner with same | |
| CN201964557U (en) | Integral type heat pipe hybrid air-conditioner | |
| CN109386989A (en) | Two pipes system air injection enthalpy-increasing outdoor unit and multi-line system | |
| US11353249B2 (en) | Two-pipe enhanced-vapor-injection outdoor unit and multi-split system | |
| CN113203136B (en) | A double high-efficiency carbon dioxide air-conditioning heat pump system | |
| CN2879058Y (en) | New hot pump air conditioning system with air-filling circuit | |
| CN208779748U (en) | air conditioning system | |
| CN101776358B (en) | Varied concentration mixed working medium auto-cascade refrigerator | |
| CN106196675B (en) | Air conditioner | |
| CN103968477A (en) | Air conditioner | |
| CN103954065B (en) | Refrigerating device | |
| CN109307378A (en) | air conditioning system | |
| CN208779749U (en) | air conditioning system | |
| CN205678933U (en) | Refrigerant circulation system and air conditioner with same | |
| CN108007010B (en) | Heat pump system | |
| CN203083058U (en) | Air conditioner | |
| CN208779607U (en) | air conditioning system | |
| CN213119316U (en) | Air conditioning unit adopting throttle valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |