CN105910319B - Air conditioning system - Google Patents
Air conditioning system Download PDFInfo
- Publication number
- CN105910319B CN105910319B CN201610369801.4A CN201610369801A CN105910319B CN 105910319 B CN105910319 B CN 105910319B CN 201610369801 A CN201610369801 A CN 201610369801A CN 105910319 B CN105910319 B CN 105910319B
- Authority
- CN
- China
- Prior art keywords
- injector
- conditioning system
- air
- indoor heat
- connecting pipeline
- 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.)
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Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 37
- 238000002347 injection Methods 0.000 claims abstract description 25
- 239000007924 injection Substances 0.000 claims abstract description 25
- 230000008676 import Effects 0.000 claims description 21
- 239000007788 liquid Substances 0.000 claims description 19
- 238000009792 diffusion process Methods 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 3
- 239000003507 refrigerant Substances 0.000 description 37
- 239000002826 coolant Substances 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 4
- 230000010354 integration Effects 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- 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
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
- F25B1/06—Compression machines, plants or systems with non-reversible cycle with compressor of jet type, e.g. using liquid under pressure
-
- 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
- F25B29/00—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
- F25B29/003—Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
-
- 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
-
- 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
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Jet Pumps And Other Pumps (AREA)
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The invention discloses an air conditioning system. The air conditioning system comprises a compressor (1), an indoor heat exchange device, an outdoor heat exchange device (2), a throttling device and an ejector (3), wherein the ejector (3) comprises an inlet, an injection inlet and an outlet, the inlet of the ejector (3) is connected to a pipeline between the outdoor heat exchange device (2) and the indoor heat exchange device, the outlet of the ejector (3) is connected to a suction end of the compressor (1), and the injection inlet of the ejector (3) is selectively connected to the outlet of the indoor heat exchange device or the outlet of the outdoor heat exchange device (2). According to the air conditioning system disclosed by the invention, the problems that the overall energy consumption of the air conditioner is increased and the comprehensive capacity coefficient is reduced in the prior art can be solved.
Description
Technical field
The present invention relates to air-conditioning technique field, in particular to a kind of air-conditioning system.
Background technology
In the case where outdoor environment is more severe, as temperature reaches subzero 30 DEG C, work pressure of the air-conditioner set to compressor
Than requiring very high, two compressors of generally use or a special Gas-supplying enthalpy-increasing compressor, and at the same time, compressor work
Consumption increase, thus the heating efficiency of integral air conditioner unit is very small, it is impossible to meet energy saving policy.Producer uses multistage substantially at present
The mode of compressor compresses meets the bad working environments demands such as heating, but this can undoubtedly increase the overall energy consumption of air-conditioning, reduce empty
The integration capability coefficient of tune.
The content of the invention
A kind of air-conditioning system is provided in the embodiment of the present invention, can solve the overall energy consumption increase of air-conditioning in the prior art,
The problem of integration capability coefficient reduces.
To achieve the above object, the embodiment of the present invention provides a kind of air-conditioning system, including compressor, indoor heat-exchanger rig,
Outdoor heat exchange device, throttling arrangement and injector, injector include import, injection entrance and exit, the import connection of injector
On pipeline between outdoor heat exchange device and indoor heat-exchanger rig, the outlet of injector is connected to the suction end of compressor, spray
The injection entrance of emitter is optionally connected to the outlet of indoor heat-exchanger rig or the outlet of outdoor heat exchange device.
Preferably, air-conditioning system includes four-way valve, the injection entrance of injector is connected to the gas returning port of four-way valve.
Preferably, injector includes the inlet communication of nozzle, suction chamber and diffusion chamber, nozzle and injector, injection enters
Mouth connects with suction chamber, and the outlet of injector connects with diffusion chamber.
Preferably, throttling arrangement includes the outdoor throttling being disposed in the interior between heat-exchanger rig and outdoor heat exchange device
Valve, air-conditioning system also include the first connecting pipeline and the second connecting pipeline, and the first connecting pipeline is connected to the of outdoor choke valve
Between one end and the import of injector, the second connecting pipeline be connected to outdoor choke valve the second end and injector import it
Between, the first connecting pipeline and the second connecting pipeline selectively connect.
Preferably, a control valve is respectively arranged with the first connecting pipeline and the second connecting pipeline.
Preferably, indoor heat-exchanger rig includes multiple indoor heat exchanging pipes being arranged in parallel, on each indoor heat exchanging pipe
It is respectively arranged with least one indoor heat exchanger.
Preferably, an interior connected with the indoor heat exchanger on the pipeline is provided with each indoor heat exchanging pipe
Choke valve.
Preferably, it is additionally provided with gas-liquid separator between the outlet of injector and the suction end of compressor.
Preferably, the exhaust end of compressor is provided with gs-oil separator.
Preferably, connected between the first connecting pipeline and the second connecting pipeline and injector by triple valve.
Apply the technical scheme of the present invention, air-conditioning system includes compressor, indoor heat-exchanger rig, outdoor heat exchange device, section
Flow device and injector, injector includes import, injection entrance and exit, the import of injector be connected to outdoor heat exchange device and
On pipeline between indoor heat-exchanger rig, the outlet of injector is connected to the suction end of compressor, and the injection entrance of injector can
Selectively it is connected to the outlet of indoor heat-exchanger rig or the outlet of outdoor heat exchange device.Spray is increased by the suction end in compressor
Emitter, the air-breathing end pressure of compressor can be lifted, meet different workload demands by adjusting compressor frequency, use is general
Logical compressor can improve air-conditioning system integration capability coefficient, save electric energy power consumption, the service behaviour of raising.
Brief description of the drawings
Fig. 1 is the structural representation of the air-conditioning system of the embodiment of the present invention；
Fig. 2 is that the air-conditioning system of the embodiment of the present invention is in the work structure diagram of refrigerating state；
Fig. 3 is that the air-conditioning system of the embodiment of the present invention is in the work structure diagram of heating state；
Fig. 4 is the structural representation of the injector of the air-conditioning system of the embodiment of the present invention.
Description of reference numerals：1st, compressor；2nd, outdoor heat exchange device；3rd, injector；4th, four-way valve；5th, outdoor choke valve；
6th, indoor heat exchanger；7th, indoor choke valve；8th, control valve；9th, gas-liquid separator；10th, nozzle；11st, suction chamber；12nd, diffusion chamber.
Embodiment
The present invention is described in further detail with specific embodiment below in conjunction with the accompanying drawings, but not as the limit to the present invention
It is fixed.
As shown in Figures 1 to 4, according to an embodiment of the invention, air-conditioning system includes compressor 1, indoor heat-exchanger rig, room
Outer heat-exchanger rig 2, throttling arrangement and injector 3, injector 3 include import, injection entrance and exit, and the import of injector 3 connects
It is connected on the pipeline between outdoor heat exchange device 2 and indoor heat-exchanger rig, the outlet of injector 3 is connected to the air-breathing of compressor 1
End, the injection entrance of injector 3 are optionally connected to the outlet of indoor heat-exchanger rig or the outlet of outdoor heat exchange device 2.
When air-conditioning system works, pipeline of the import between outdoor heat exchange device 2 and indoor heat-exchanger rig can be passed through
Upper introducing portion HTHP refrigerant, and the decompression speedup of the nozzle through injector 3, then will by the injection entrance of injector 3
Through refrigeration either heat after compressor 1 flowed into by the outlet of outdoor heat exchange device 2 or the outlet of indoor heat-exchanger rig
The refrigerant of suction end is incorporated into injector 3, and the refrigerant that the refrigerant and injection entrance of the import introducing of injector 3 introduce mixes it
The middle pressure refrigerant high compared with the refrigerant pressure that the injection entrance of injector 3 is introduced into is formed afterwards, so as to increase the gaseous state into compressor
The pressure of refrigerant, the air-breathing end pressure of compressor is lifted, different workload demands is met by adjusting compressor frequency, used
Common compressor can improve air-conditioning system integration capability coefficient, save electric energy power consumption, improve service behaviour.
In order to better ensure that the refrigerant for entering compressor air suction end is gaseous coolant, in the inlet connecting branch of injector 3
Throttling arrangement can also be set on road, so as to make to enter the refrigerant of the import of injector 3 can using throttling expansion as gaseous coolant after
The refrigerant introduced with injection entrance mixes, and avoids liquid refrigerants from entering compressor 1 and cause to damage to compressor.
Air-conditioning system includes four-way valve 4, and the injection entrance of injector 3 is connected to the gas returning port of four-way valve 4.Pass through four-way valve
4 can conveniently realize between the outlet of indoor heat-exchanger rig or the outlet of outdoor heat exchange device 2 and the injection entrance of injector 3
Connection status switching so that injection entrance can neatly be connected to corresponding according to the difference of air-conditioning system working condition
Exit, realize the reasonable employment of injector 3.
Injector 3 includes nozzle 10, suction chamber 11 and diffusion chamber 12, the inlet communication of nozzle 10 and injector 3, and injection enters
Mouth connects with suction chamber 11, and the outlet of injector 3 connects with diffusion chamber 12.Wherein nozzle 10 be from the entrance point of injector 3 to
The pyramidal structure that the port of export extends and section is successively decreased, can carry out decompression speedup, suction chamber 11 to the refrigerant entered from nozzle 10
Positioned at the port of export of nozzle 10, it is columnar structured, is engaged with nozzle 10, can be depressured what speedup be formed by nozzle 10
Negative pressure sucks refrigerant from injection entrance, and diffusion chamber 12 is connected with the port of export of suction chamber 11, and along gas flow direction interface
It is incremented by, diffusion action can be played to refrigerant so that the refrigerant for entering the suction end of compressor 1 is pressurized, and is improved and is entered
The pressure of gaseous coolant in compressor 1.
Throttling arrangement includes the outdoor choke valve 5 being disposed in the interior between heat-exchanger rig and outdoor heat exchange device 2, air-conditioning system
System also includes the first connecting pipeline and the second connecting pipeline, and the first connecting pipeline is connected to first end and the spray of outdoor choke valve 5
Between the import of emitter 3, the second connecting pipeline is connected between the second end of outdoor choke valve 5 and the import of injector 3, and first
Connecting pipeline and the second connecting pipeline selectively connect.
It can be connected between first connecting pipeline and the second connecting pipeline and the import of injector 3 by triple valve, so as to
Selection between first connecting pipeline and second the first connecting pipeline of connecting pipeline and the import of the second connecting pipeline and injector 3
Property connection.In the present embodiment, a control valve 8 is respectively arranged with the first connecting pipeline and the second connecting pipeline to be provided with
Control valve on the first connecting pipeline is 8a, and the control valve being arranged on the second connecting pipeline is 8b, by controlling control valve
8a and 8b state, easily the connected state of the first connecting pipeline and the second connecting pipeline can be controlled.
Indoor heat-exchanger rig includes multiple indoor heat exchanging pipes being arranged in parallel, and is respectively arranged with each indoor heat exchanging pipe
At least one indoor heat exchanger 6.Preferably, one and the indoor heat exchanger on the pipeline are provided with each indoor heat exchanging pipe
The indoor choke valve 7 of 6 series connection.In the present embodiment, an indoor heat exchanger 6 is respectively arranged with each indoor heat exchanging pipe.
Gas-liquid separator 9 is additionally provided between the outlet of injector 3 and the suction end of compressor 1.Gas-liquid separator can be with
Gas-liquid separation is carried out to the two-phase refrigerant that is mixed in diffusion chamber 12, so as to ensure to enter the suction end of compressor 1
For gaseous coolant, compressor 1 is effectively protected, and improve the service behaviour of compressor 1.
The exhaust end of compressor 1 is also provided with gs-oil separator.
Above-mentioned choke valve is, for example, electric expansion valve.
When air-conditioning system is in refrigeration mode, magnetic valve 8a is opened, and magnetic valve 8b is closed, and the outdoor aperture of choke valve 5 is
Standard-sized sheet.Such as accompanying drawing 2, System Working Principle is as follows：
High pressure gaseous refrigerant after the compression of compressor 1 enters in outdoor heat exchange device 2 through four-way valve 4, is condensed
For high temperature high pressure liquid P1, the liquid is divided into two-way afterwards：It is to flow into interior machine through outdoor choke valve 5 all the way, now outdoor throttling
The standard-sized sheet of valve 5, gas-liquid two-phase state refrigerants of the high temperature high pressure liquid P1 by the indoor throttling expansion of choke valve 7 for low-temp low-pressure, finally exists
Absorb heat and evaporate in indoor heat exchanger 6；The low-temp low-pressure refrigerant P2 flowed out by indoor heat exchanger 6 flows into injector 3 through four-way valve 4
In injection entrance suction chamber 11.
Another way is the import that high temperature high pressure liquid P1 enters injector 3 through control valve 8a；Spray of the P1 refrigerants through injector 3
Mouth 10 is depressured speedup, then flows into suction chamber 11, causes the parital vacuum of suction chamber 11；By siphonage, P2 refrigerants are by nozzle 10
It is depressured under the drive of two phase refrigerants of speedup and flows into diffusion chamber 12 together；Mixing refrigerant is pressurized in diffusion chamber 12, final outflow
The middle pressure two phase refrigerant P3 high compared with P2 refrigerant pressures.Two phase refrigerant P3 enter gas-liquid separator 9 and carry out gas-liquid separation, separation
The middle pressure gaseous coolant gone out is compressed by compressor 1.
When air-conditioning system is in heating mode, magnetic valve 8a is closed, and magnetic valve 8b is opened.As accompanying drawing 4, system work are former
Reason is as follows：
High pressure gaseous refrigerant after the compression of compressor 1 is got in heat exchanger 6 through four-way valve 4, is condensed into
High temperature high pressure liquid, the liquid enter after the indoor choke valve 7 corresponding to each indoor heat exchanger once throttles for P1 refrigerants
Outer machine system, is divided into two-way, is the gas-liquid two-phase state refrigerant that low-temp low-pressure is expanded to through the outdoor second throttle of choke valve 5 all the way,
Heat absorption is evaporated to low-temp low-pressure refrigerant P2 in outdoor heat exchange device 2 afterwards, and the injection entrance of injector 3 is flowed into through four-way valve 4
In suction chamber 11.
Another way is the import that P1 refrigerants enter injector 3 through magnetic valve 8b；Nozzle 10 of the P1 refrigerants through injector 3 is depressured
Speedup, then suction chamber 11 is flowed into, cause the parital vacuum of suction chamber 11；By siphonage, P2 refrigerants are being depressured increasing by nozzle 10
Diffusion chamber 12 is flowed into together under the drive of two phase refrigerants of speed；Mixing refrigerant is pressurized in diffusion chamber 12, and final outflow is cold compared with P2
The high phase refrigerant P3 of middle pressure two of matchmaker's pressure.Two phase refrigerant P3 enter gas-liquid separator 9 and carry out gas-liquid separation, in isolating
Pressure gaseous coolant is compressed by compressor 1.
Certainly, above is the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art
For, on the premise of its general principles are not departed from, some improvements and modifications can also be made, these improvements and modifications
It is considered as protection scope of the present invention.
Claims (8)
1. a kind of air-conditioning system, it is characterised in that including compressor (1), indoor heat-exchanger rig, outdoor heat exchange device (2), throttling
Device and injector (3), the injector (3) include import, injection entrance and exit, the import connection of the injector (3)
On pipeline between the outdoor heat exchange device (2) and the indoor heat-exchanger rig, the outlet of the injector (3) is connected to
The suction end of the compressor (1), the injection entrance of the injector (3) are optionally connected to the indoor heat-exchanger rig
Outlet or the outlet of the outdoor heat exchange device (2)；
The air-conditioning system includes four-way valve (4), and the injection entrance of the injector (3) is connected to returning for the four-way valve (4)
Gas port；
The throttling arrangement includes the outdoor throttling being arranged between the indoor heat-exchanger rig and the outdoor heat exchange device (2)
Valve (5), the air-conditioning system also include the first connecting pipeline and the second connecting pipeline, and first connecting pipeline is connected to described
Between the first end of outdoor choke valve (5) and the import of the injector (3), second connecting pipeline is connected to the outdoor
Between second end of choke valve (5) and the import of the injector (3), first connecting pipeline and second connecting pipeline
Selectively connect.
2. air-conditioning system according to claim 1, it is characterised in that the injector (3) includes nozzle (10), suction chamber
(11) and diffusion chamber (12), the nozzle (10) and the inlet communication of the injector (3), the injection entrance and the suction
Chamber (11) connects, and the outlet of the injector (3) connects with the diffusion chamber (12).
3. air-conditioning system according to claim 1, it is characterised in that first connecting pipeline and second communicating pipe
A control valve (8) is respectively arranged with road.
4. air-conditioning system according to claim 1, it is characterised in that the indoor heat-exchanger rig includes multiple be arranged in parallel
Indoor heat exchanging pipe, be respectively arranged with least one indoor heat exchanger (6) on each indoor heat exchanging pipe.
5. air-conditioning system according to claim 4, it is characterised in that be provided with one on each indoor heat exchanging pipe
The indoor choke valve (7) connected with the indoor heat exchanger (6) on the pipeline.
6. air-conditioning system according to any one of claim 1 to 5, it is characterised in that the outlet of the injector (3) with
Gas-liquid separator (9) is additionally provided between the suction end of the compressor (1).
7. air-conditioning system according to any one of claim 1 to 5, it is characterised in that the exhaust end of the compressor (1)
It is provided with gs-oil separator.
8. air-conditioning system according to claim 1, it is characterised in that first connecting pipeline and second communicating pipe
It is connected between road and the injector (3) by triple valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369801.4A CN105910319B (en) | 2016-05-27 | 2016-05-27 | Air conditioning system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610369801.4A CN105910319B (en) | 2016-05-27 | 2016-05-27 | Air conditioning system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105910319A CN105910319A (en) | 2016-08-31 |
| CN105910319B true CN105910319B (en) | 2018-03-20 |
Family
ID=56741689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610369801.4A Active CN105910319B (en) | 2016-05-27 | 2016-05-27 | Air conditioning system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105910319B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0526522A (en) * | 1991-07-23 | 1993-02-02 | Nippondenso Co Ltd | Freezing cycle |
| CN1432775A (en) * | 2002-01-15 | 2003-07-30 | 株式会社电装 | Air conditioner with injector circulation system |
| JP2010085022A (en) * | 2008-09-30 | 2010-04-15 | Daikin Ind Ltd | Refrigerating device |
| CN202938542U (en) * | 2012-11-16 | 2013-05-15 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN104089424A (en) * | 2014-07-04 | 2014-10-08 | 珠海格力电器股份有限公司 | Injection refrigeration cycle device |
| CN105492841A (en) * | 2013-08-29 | 2016-04-13 | 株式会社电装 | Ejector-type refrigeration cycle, and ejector |
| CN205783943U (en) * | 2016-05-27 | 2016-12-07 | 珠海格力电器股份有限公司 | Air conditioning system |
-
2016
- 2016-05-27 CN CN201610369801.4A patent/CN105910319B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0526522A (en) * | 1991-07-23 | 1993-02-02 | Nippondenso Co Ltd | Freezing cycle |
| CN1432775A (en) * | 2002-01-15 | 2003-07-30 | 株式会社电装 | Air conditioner with injector circulation system |
| JP2010085022A (en) * | 2008-09-30 | 2010-04-15 | Daikin Ind Ltd | Refrigerating device |
| CN202938542U (en) * | 2012-11-16 | 2013-05-15 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN105492841A (en) * | 2013-08-29 | 2016-04-13 | 株式会社电装 | Ejector-type refrigeration cycle, and ejector |
| CN104089424A (en) * | 2014-07-04 | 2014-10-08 | 珠海格力电器股份有限公司 | Injection refrigeration cycle device |
| CN205783943U (en) * | 2016-05-27 | 2016-12-07 | 珠海格力电器股份有限公司 | Air conditioning system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105910319A (en) | 2016-08-31 |
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