CN205102288U - Enhanced vapor injection air conditioning system - Google Patents

Enhanced vapor injection air conditioning system Download PDF

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Publication number
CN205102288U
CN205102288U CN201520844824.7U CN201520844824U CN205102288U CN 205102288 U CN205102288 U CN 205102288U CN 201520844824 U CN201520844824 U CN 201520844824U CN 205102288 U CN205102288 U CN 205102288U
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CN
China
Prior art keywords
conditioning
injection enthalpy
span
expansion valve
air
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Withdrawn - After Issue
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CN201520844824.7U
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Chinese (zh)
Inventor
李宏伟
许永锋
张光鹏
梁伯启
蒋运鹏
卜其辉
董世龙
吴晓鸿
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Guangdong Midea HVAC Equipment Co Ltd
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Guangdong Midea HVAC Equipment Co Ltd
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Priority to CN201520844824.7U priority Critical patent/CN205102288U/en
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Publication of CN205102288U publication Critical patent/CN205102288U/en
Priority claimed from MX2017015002A external-priority patent/MX2017015002A/en
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Abstract

The utility model discloses an enhanced vapor injection air conditioning system, include: the jet compressor, the switching -over subassembly, an outdoor heat exchanger, the 2nd outdoor heat exchanger, supplementary electronic expansion valve subassembly, the jet compressor has the gas vent, return -air mouth and jet, the switching -over subassembly has first valve port to fourth valve port, the 2nd outdoor heat exchanger includes the first heat transfer flow path and the second heat transfer flow path of mutual heat transfer, it has main electronic expansion valve subassembly to establish ties between the first end of first heat transfer flow path and an outdoor heat exchanger's the second end, the first end of supplementary electronic expansion valve subassembly links to each other with the entry of second heat transfer flow path, the second end of supplementary electronic expansion valve subassembly is connected to the second end of first heat transfer flow path or assists the second end of electronic expansion valve subassembly to be connected to between main electronic expansion valve subassembly and the first heat transfer flow path, wherein the value range who compares DB of the bore total of bore total and the supplementary electronic expansion valve subassembly of main electronic expansion valve subassembly is 1 <= DB <= 7.

Description

Air injection enthalpy-increasing air-conditioning system
Technical field
The utility model relates to steam compression type refrigeration field of air conditioning, especially relates to a kind of air injection enthalpy-increasing air-conditioning system.
Background technology
Point out in correlation technique, air-conditioning system uses more and more extensive, and is more and more generally applicable to the places such as various office, house, and the requirement of people to air conditioning comfortableness is also more and more higher, especially more and more payes attention to low outdoor temperature and heats brought comfortableness.But, although along with the continuous progress of air-conditioning technical, major part air-conditioning is when low-temperature heating or water heating, still inevitably there will be the situation that heating effect declines to a great extent along with the reduction of outdoor temperature, thus cause that indoor temperature is on the low side or leaving water temperature is on the low side, and then reduce the comfortableness that air-conditioning uses.
Utility model content
The utility model is intended to solve one of technical problem in correlation technique at least to a certain extent.For this reason, the utility model proposes a kind of air injection enthalpy-increasing air-conditioning system, it is good that described air injection enthalpy-increasing air-conditioning system has heating effect, the advantage that system energy efficiency is high.
The utility model also proposes another kind of air injection enthalpy-increasing air-conditioning system, and it is good that described air injection enthalpy-increasing air-conditioning system has heating effect, the advantage that system energy efficiency is high.
According to the air injection enthalpy-increasing air-conditioning system of the utility model first aspect embodiment, comprising: jet compressor, described jet compressor has exhaust outlet, gas returning port and jet; Commutation assembly, described commutation assembly has the first valve port to the 4th valve port, described first valve port is communicated with one of them in the 3rd valve port with the second valve port, described 4th valve port and described second valve port are communicated with another in described 3rd valve port, described first valve port is connected with described exhaust outlet, and described 4th valve port is connected with described gas returning port; First outdoor heat exchanger, the first end of described first outdoor heat exchanger is connected with described second valve port; Second outdoor heat exchanger, described second outdoor heat exchanger comprises the first heat exchange stream and the second heat exchange stream of mutual heat exchange, main electronic expansion valve module is in series with between the first end of described first heat exchange stream and the second end of described first outdoor heat exchanger, second end of described first heat exchange stream is connected with indoor set system, and the outlet of described second heat exchange stream is connected with described jet; Auxiliary electron expansion valve component, the first end of described auxiliary electron expansion valve component is connected with the entrance of described second heat exchange stream, and the second end of the second end or described auxiliary electron expansion valve component that the second end of described auxiliary electron expansion valve component is connected to described first heat exchange stream is connected between described main electronic expansion valve module and described first heat exchange stream; The bore summation of wherein said main electronic expansion valve module is 1≤DB≤7 with the span of the ratio DB of the bore summation of described auxiliary electron expansion valve component.
According to the air injection enthalpy-increasing air-conditioning system of the utility model embodiment, by the ratio DB of the bore summation of the bore summation with auxiliary electron expansion valve component that rationally arrange main electronic expansion valve module, can significantly promote heating effect and system energy efficiency, make the flow matches of system more reasonable, can also avoid causing a large amount of cold-producing medium of system for crossing cold and spraying simultaneously, avoid because emitted dose is excessive and cause system to have liquid hammer risk, thus not only can improve the comfortableness of user's use, but also the reliability of system works can be improved.
According to embodiments more of the present utility model, when the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system is for being less than 3.6 kilowatt hours, the span of described DB is 1≤DB≤1.5; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 3.6 kilowatts to 5 kilowatt hours, the span of described DB is 1≤DB≤2; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 5 kilowatts to 12 kilowatt hours, the span of described DB is 1.5≤DB≤2; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 12 kilowatts to 16 kilowatt hours, the span of described DB is 1.5≤DB≤2.2; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 16 kilowatts to 20 kilowatt hours, the span of described DB is 1.5≤DB≤2.5; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 20 kilowatts to 25 kilowatt hours, the span of described DB is 1.5≤DB≤3; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 25 kilowatts to 33.5 kilowatt hours, the span of described DB is 1.5≤DB≤3.5; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 33.5 kilowatts to 45 kilowatt hours, the span of described DB is 1.5≤DB≤4; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 45 kilowatts to 67.5 kilowatt hours, the span of described DB is 2≤DB≤4; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 67.5 kilowatts to 78 kilowatt hours, the span of described DB is 2.2≤DB≤4; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 78 kilowatts to 90 kilowatt hours, the span of described DB is 2.2≤DB≤4.5.
According to embodiments more of the present utility model, the sectional area summation of described main electronic expansion valve module is 1≤SL≤16 with the span of the ratio SL of the sectional area summation of described auxiliary electron expansion valve component.
In embodiments more of the present utility model, when the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system is for being less than 3.6 kilowatt hours, the span of described SL is 1≤SL≤1.5; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 3.6 kilowatts to 5 kilowatt hours, the span of described SL is 1≤SL≤2; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 5 kilowatts to 12 kilowatt hours, the span of described SL is 1≤SL≤2.5; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 12 kilowatts to 16 kilowatt hours, the span of described SL is 1≤SL≤3; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 16 kilowatts to 20 kilowatt hours, the span of described SL is 1≤SL≤4; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 20 kilowatts to 25 kilowatt hours, the span of described SL is 1≤SL≤5; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 25 kilowatts to 33.5 kilowatt hours, the span of described SL is 1.5≤SL≤6; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 33.5 kilowatts to 45 kilowatt hours, the span of described SL is 2≤SL≤8; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 45 kilowatts to 67.5 kilowatt hours, the span of described SL is 3≤SL≤15; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 67.5 kilowatts to 78 kilowatt hours, the span of described SL is 3.5≤SL≤16; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 78 kilowatts to 90 kilowatt hours, the span of described SL is 4≤SL≤16.
According to embodiments more of the present utility model, described main electronic expansion valve module is a main electric expansion valve or multiple main electric expansion valve be connected in parallel.
According to embodiments more of the present utility model, air injection enthalpy-increasing air-conditioning system also comprises gas-liquid separator, and the entrance of described gas-liquid separator is connected with described 4th valve port, and the gas vent of described gas-liquid separator is connected with described gas returning port.
According to embodiments more of the present utility model, the outlet of described second heat exchange stream is connected with described gas returning port, is in series with block valve between the outlet of described second heat exchange stream and described jet and/or between the outlet of described second heat exchange stream and described gas returning port.
According to the air injection enthalpy-increasing air-conditioning system of the utility model second aspect embodiment, comprising: jet compressor, described jet compressor has exhaust outlet, gas returning port and jet; Commutation assembly, described commutation assembly has the first valve port to the 4th valve port, described first valve port is communicated with one of them in the 3rd valve port with the second valve port, described 4th valve port and described second valve port are communicated with another in described 3rd valve port, described first valve port is connected with described exhaust outlet, and described 4th valve port is connected with described gas returning port; First outdoor heat exchanger, the first end of described first outdoor heat exchanger is connected with described second valve port; Second outdoor heat exchanger, described second outdoor heat exchanger comprises the first heat exchange stream and the second heat exchange stream of mutual heat exchange, to connect between the first end of described first heat exchange stream and the second end of described first outdoor heat exchanger main electronic expansion valve module, second end of described first heat exchange stream is connected with indoor set system, and the outlet of described second heat exchange stream is connected with described jet; Auxiliary electron expansion valve component, the first end of described auxiliary electron expansion valve component is connected with the entrance of described second heat exchange stream, and the second end of the second end or described auxiliary electron expansion valve component that the second end of described auxiliary electron expansion valve component is connected to described first heat exchange stream is connected between described main electronic expansion valve module and described first heat exchange stream; The sectional area summation of wherein said main electronic expansion valve module is 1≤SL≤16 with the span of the ratio SL of the sectional area summation of described auxiliary electron expansion valve component.
According to the air injection enthalpy-increasing air-conditioning system of the utility model embodiment, by the ratio SL of the sectional area summation of the sectional area summation with auxiliary electron expansion valve component that rationally arrange electronic expansion valve module, can significantly promote heating effect and system energy efficiency, make the flow matches of system more reasonable, can also avoid causing a large amount of cold-producing medium of system for crossing cold and spraying simultaneously, avoid because emitted dose is excessive and cause system to have liquid hammer risk, thus not only can improve the comfortableness of user's use, but also the reliability of system works can be improved.
According to embodiments more of the present utility model, when the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system is for being less than 3.6 kilowatt hours, the span of described SL is 1≤SL≤1.5; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 3.6 kilowatts to 5 kilowatt hours, the span of described SL is 1≤SL≤2; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 5 kilowatts to 12 kilowatt hours, the span of described SL is 1≤SL≤2.5; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 12 kilowatts to 16 kilowatt hours, the span of described SL is 1≤SL≤3; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 16 kilowatts to 20 kilowatt hours, the span of described SL is 1≤SL≤4; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 20 kilowatts to 25 kilowatt hours, the span of described SL is 1≤SL≤5; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 25 kilowatts to 33.5 kilowatt hours, the span of described SL is 1.5≤SL≤6; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 33.5 kilowatts to 45 kilowatt hours, the span of described SL is 2≤SL≤8; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 45 kilowatts to 67.5 kilowatt hours, the span of described SL is 3≤SL≤15; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 67.5 kilowatts to 78 kilowatt hours, the span of described SL is 3.5≤SL≤16; When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 78 kilowatts to 90 kilowatt hours, the span of described SL is 4≤SL≤16.
In embodiments more of the present utility model, described main electronic expansion valve module is a main electric expansion valve or is multiplely connected in parallel main electric expansion valve.
In embodiments more of the present utility model, air injection enthalpy-increasing air-conditioning system also comprises gas-liquid separator, and the entrance of described gas-liquid separator is connected with described 4th valve port, and the gas vent of described gas-liquid separator is connected with described gas returning port.
In embodiments more of the present utility model, the outlet of described second heat exchange stream is connected with described gas returning port, is in series with block valve between the outlet of described second heat exchange stream and described jet and/or between the outlet of described second heat exchange stream and described gas returning port.
Accompanying drawing explanation
Fig. 1 is the structural representation of the air injection enthalpy-increasing air-conditioning system according to the utility model embodiment.
Reference numeral:
Air injection enthalpy-increasing air-conditioning system 100,
Jet compressor 1,
Jet 11, gas returning port 12, exhaust outlet 13,
Commutation assembly 2,
First valve port 21, second valve port the 22, three valve port the 23, four valve port 24,
First outdoor heat exchanger 3,
Second end 32 of first end 31, first outdoor heat exchanger of the first outdoor heat exchanger,
Second outdoor heat exchanger 4,
Second end 412 of first end 411, the first heat exchange stream of the first heat exchange stream 41, first heat exchange stream,
The outlet 422 of entrance 421, the second heat exchange stream of the second heat exchange stream 42, second heat exchange stream,
Main electric expansion valve 5,
The first end 51 of main electric expansion valve, the second end 52 of main electric expansion valve,
Auxiliary electron expansion valve 6,
The first end 61 of auxiliary electron expansion valve, the second end 62 of auxiliary electron expansion valve,
Gas-liquid separator 7.
Detailed description of the invention
Be described below in detail embodiment of the present utility model, the example of described embodiment is shown in the drawings.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
Describe the air injection enthalpy-increasing air-conditioning system 100 according to the utility model first aspect embodiment in detail below with reference to Fig. 1, air injection enthalpy-increasing air-conditioning system 100 is made up of off-premises station and indoor set, and wherein indoor set can be one or more.
As shown in Figure 1, according to the air injection enthalpy-increasing air-conditioning system 100 of the utility model embodiment, comprising: jet compressor 1, commutation assembly 2, first outdoor heat exchanger 3, second outdoor heat exchanger 4 and auxiliary electron expansion valve component.
Specifically, jet compressor 1 has exhaust outlet 13, gas returning port 12 and jet 11, commutation assembly 2 has the first valve port 21 to the 4th valve port 24, first valve port 21 is communicated with one of them in the 3rd valve port 23 with the second valve port 22,4th valve port 24 and the second valve port 22 are communicated with another in the 3rd valve port 23, first valve port 21 is connected with exhaust outlet 13, and the 4th valve port 24 is connected with gas returning port 12.Preferably, commutation assembly 2 can be cross valve, it is appreciated of course that commutation assembly 2 can also be other structures, as long as can realize commutating.
When air injection enthalpy-increasing air-conditioning system 100 is freezed, the first valve port 21 is communicated with the second valve port 22, and the 3rd valve port 23 is communicated with the 4th valve port 24.When air injection enthalpy-increasing air-conditioning system 100 heats, the first valve port 21 is communicated with the 3rd valve port 23, and the second valve port 22 is communicated with the 4th valve port 24.
The first end 31 of the first outdoor heat exchanger is connected with the second valve port 22, second outdoor heat exchanger 4 comprises the first heat exchange stream 41 and the second heat exchange stream 42 of mutual heat exchange, main electronic expansion valve module is in series with between the first end 411 of the first heat exchange stream and the second end 32 of the first outdoor heat exchanger, second end 412 of the first heat exchange stream is connected with indoor set system, the outlet 422 of the second heat exchange stream is connected with jet 11, thus can when low-temperature heating, by the refrigerant injection after the evaporation of the outlet 422 of the second heat exchange stream in the jet 11 of jet compressor 1, thus increase system hypothermia heating capacity.
The first end (first end 61 of the auxiliary electron expansion valve such as shown in Fig. 1) of auxiliary electron expansion valve component is connected with the entrance 421 of the second heat exchange stream, and the second end of the second end 412 or auxiliary electron expansion valve component that second end (the second end 62 of the auxiliary electron expansion valve such as shown in Fig. 1) of auxiliary electron expansion valve component is connected to the first heat exchange stream is connected between main electronic expansion valve module and the first heat exchange stream 41.
When the second end of auxiliary electron expansion valve component is connected to the second end 412 of the first heat exchange stream, when air injection enthalpy-increasing air-conditioning system 100 is freezed, cold-producing medium after main electronic expansion valve module reducing pressure by regulating flow enters into the first heat exchange stream 41, to discharge and cold-producing medium after auxiliary electron expansion valve component reducing pressure by regulating flow enters in the second heat exchange stream 42 from the first heat exchange stream 41, therefore there is the temperature difference between the first heat exchange stream 41 and the second heat exchange stream 42, between the first heat exchange stream 41 and the second heat exchange stream 42, carry out heat exchange.
When the second end of auxiliary electron expansion valve component is connected to the second end 412 of the first heat exchange stream, when air injection enthalpy-increasing air-conditioning system 100 heats, a part for the cold-producing medium of machine outflow enters into the second heat exchange stream 42 after auxiliary electron expansion valve component reducing pressure by regulating flow indoor, another part cold-producing medium that machine flows out indoor directly enters into the first heat exchange stream 41, therefore there is the temperature difference between the first heat exchange stream 41 and the second heat exchange stream 42, between the first heat exchange stream 41 and the second heat exchange stream 42, carry out heat exchange.The cold-producing medium of discharging from the first heat exchange stream 41 is drained into the first outdoor heat exchanger 3 after main electronic expansion valve module reducing pressure by regulating flow.
When the second end of auxiliary electron expansion valve component is connected between main electronic expansion valve module and the first heat exchange stream 41, when air injection enthalpy-increasing air-conditioning system 100 is freezed, part of refrigerant after main electronic expansion valve module reducing pressure by regulating flow enters into the first heat exchange stream 41, another part cold-producing medium after main electronic expansion valve module reducing pressure by regulating flow enters in the second heat exchange stream 42 again after auxiliary electron expansion valve component reducing pressure by regulating flow, therefore there is the temperature difference between the first heat exchange stream 41 and the second heat exchange stream 42, heat exchange is carried out between first heat exchange stream 41 and the second heat exchange stream 42.
When the second end of auxiliary electron expansion valve component is connected between main electronic expansion valve module and the first heat exchange stream 41, when air injection enthalpy-increasing air-conditioning system 100 heats, the cold-producing medium that machine flows out indoor enters into the first heat exchange stream 41, the part of refrigerant of discharging from the first heat exchange stream 41 enters in the second heat exchange stream 42 after auxiliary electron expansion valve component reducing pressure by regulating flow, therefore there is the temperature difference between the first heat exchange stream 41 and the second heat exchange stream 42, between the first heat exchange stream 41 and the second heat exchange stream 42, carry out heat exchange.Another part cold-producing medium of discharging from the first heat exchange stream 41 is drained into the first outdoor heat exchanger 3 after main electronic expansion valve module reducing pressure by regulating flow.
It can thus be appreciated that by arranging auxiliary electron expansion valve component, make to there is the temperature difference to carry out heat exchange between the first heat exchange stream 41 and the second heat exchange stream 42.
Wherein the bore summation of main electronic expansion valve module is 1≤DB≤7 with the span of the ratio DB of the bore summation of auxiliary electron expansion valve component.It should be noted that, bore refers to the radius of the spool of electric expansion valve, and when main electronic expansion valve module comprises multiple main electric expansion valve, the bore summation of main electronic expansion valve module refers to the bore sum of multiple main electric expansion valve 5.When auxiliary electron expansion valve component comprises multiple auxiliary electron expansion valve, the bore summation of auxiliary electron expansion valve component refers to the bore sum of multiple auxiliary electron expansion valve 6.Can, by rationally arranging the ratio DB of the bore summation of main electronic expansion valve module and the bore summation of auxiliary electron expansion valve component, make the assignment of traffic of system reasonable thus.
According to the air injection enthalpy-increasing air-conditioning system 100 of the utility model embodiment, by the ratio DB of the bore summation of the bore summation with auxiliary electron expansion valve component that rationally arrange main electronic expansion valve module, can significantly promote heating effect and system energy efficiency, make the flow matches of system more reasonable, can also avoid causing a large amount of cold-producing medium of system for crossing cold and spraying simultaneously, avoid because emitted dose is excessive and cause system to have liquid hammer risk, thus not only can improve the comfortableness of user's use, but also the reliability of system works can be improved.
In embodiments more of the present utility model, when the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 is for being less than 3.6 kilowatt hours, the span of DB is 1≤DB≤1.5; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 3.6 kilowatts to 5 kilowatt hours, the span of DB is 1≤DB≤2; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 5 kilowatts to 12 kilowatt hours, the span of DB is 1.5≤DB≤2; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 12 kilowatts to 16 kilowatt hours, the span of DB is 1.5≤DB≤2.2; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 16 kilowatts to 20 kilowatt hours, the span of DB is 1.5≤DB≤2.5; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 20 kilowatts to 25 kilowatt hours, the span of DB is 1.5≤DB≤3; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 25 kilowatts to 33.5 kilowatt hours, the span of DB is 1.5≤DB≤3.5; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 33.5 kilowatts to 45 kilowatt hours, the span of DB is 1.5≤DB≤4; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 45 kilowatts to 67.5 kilowatt hours, the span of DB is 2≤DB≤4; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 67.5 kilowatts to 78 kilowatt hours, the span of DB is 2.2≤DB≤4; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 78 kilowatts to 90 kilowatt hours, the span of DB is 2.2≤DB≤4.5.
The DB value that air injection enthalpy-increasing air-conditioning system 100 is corresponding suitable when the refrigerating capacity of special value scope can be ensured thus, can be used for cold and sprayed by a large amount of cold-producing medium of anti-locking system, avoid because system refrigerant internal circulating load is on the low side and cause heating effect to be deteriorated, system energy efficiency step-down, or emitted dose is excessive and cause system to have liquid hammer risk, thus improve heating effect and the system energy efficiency of system.
In embodiments more of the present utility model, the sectional area summation of main electronic expansion valve module is 1≤SL≤16 with the span of the ratio SL of the sectional area summation of auxiliary electron expansion valve component.Can realize significantly promoting further by the ratio SL of the mouth sectional area summation of the sectional area summation and auxiliary electron expansion valve component that rationally arrange main electronic expansion valve module the object of heating effect and system energy efficiency thus.It should be noted that, sectional area refers to the sectional area of the spool of electric expansion valve, and when main electronic expansion valve module comprises multiple main electric expansion valve, the mouth sectional area summation of main electronic expansion valve module refers to the sectional area sum of multiple main electric expansion valve 5.When auxiliary electron expansion valve component comprises multiple auxiliary electron expansion valve, the sectional area summation of auxiliary electron expansion valve component refers to the sectional area sum of multiple auxiliary electron expansion valve 6.
Particularly, when the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 is for being less than 3.6 kilowatt hours, the span of SL is 1≤SL≤1.5; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 3.6 kilowatts to 5 kilowatt hours, the span of SL is 1≤SL≤2; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 5 kilowatts to 12 kilowatt hours, the span of SL is 1≤SL≤2.5; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 12 kilowatts to 16 kilowatt hours, the span of SL is 1≤SL≤3; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 16 kilowatts to 20 kilowatt hours, the span of SL is 1≤SL≤4; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 20 kilowatts to 25 kilowatt hours, the span of SL is 1≤SL≤5; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 25 kilowatts to 33.5 kilowatt hours, the span of SL is 1.5≤SL≤6; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 33.5 kilowatts to 45 kilowatt hours, the span of SL is 2≤SL≤8; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 45 kilowatts to 67.5 kilowatt hours, the span of SL is 3≤SL≤15; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 67.5 kilowatts to 78 kilowatt hours, the span of SL is 3.5≤SL≤16; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 78 kilowatts to 90 kilowatt hours, the span of SL is 4≤SL≤16.
The SL value that air injection enthalpy-increasing air-conditioning system 100 is corresponding suitable when the refrigerating capacity of special value scope can be ensured thus, can be used for cold and sprayed by a large amount of cold-producing medium of further anti-locking system, avoid because system refrigerant internal circulating load is on the low side and cause heating effect to be deteriorated, system energy efficiency step-down, or emitted dose is excessive and cause system to have liquid hammer risk, thus the heating effect of further raising system and system energy efficiency.
In embodiments more of the present utility model, main electronic expansion valve module is a main electric expansion valve 5 or multiple main electric expansion valve 5 be connected in parallel.Such as, as shown in Figure 1, main electronic expansion valve module is a main electric expansion valve 5, thus can so that the control of whole air-conditioning system, as long as regulate its bore or sectional area just can realize the adjustment of the flow of main electronic expansion valve module.When main electronic expansion valve module is the main electric expansion valve 5 of multiple parallel connection, the diversity of the adjustment of main electronic expansion valve module can be increased, such as, can be regulated one of them, two or more main electric expansion valve 5 to be to realize the adjustment of main electronic expansion valve module flow, one or more in the main electric expansion valve 5 of simultaneously multiple parallel connection can close, all the other can open and use, when use in main electric expansion valve 5 block time, can open be in closed condition all the other main electric expansion valves 5 to realize the normal operation of system.
In embodiments more of the present utility model, the outlet 422 of the second heat exchange stream is connected with gas returning port 12, is in series with block valve (scheming not shown) between the outlet 422 of the second heat exchange stream and jet 11 and/or between the outlet 422 of the second heat exchange stream and gas returning port 12.In other words, second heat exchange stream 42 is connected with gas returning port 12 with jet 11, and block valve can be located between the second heat exchange stream 42 and jet 11, also can be located between the second heat exchange stream 42 and gas returning port 12, can also be located between the second heat exchange stream 42 and jet 11 and between the second heat exchange stream 42 and gas returning port 12 simultaneously.It should be noted that, the effect of block valve is the medium connected or block in pipeline, can control the break-make of the cold-producing medium between the second heat exchange stream 42 and jet 11 and/or between the second heat exchange stream 42 and gas returning port 12 thus according to demand.Such as, when only making the outlet 422 of the second heat exchange stream be communicated with gas returning port 12, can play a part to be cold.
Alternatively, with reference to Fig. 1, air injection enthalpy-increasing air-conditioning system 100 also comprises gas-liquid separator 7, and the entrance of gas-liquid separator 7 is connected with the 4th valve port 24, and the gas vent of gas-liquid separator 7 is connected with gas returning port 12.Wherein gas-liquid separator 7 can play gas liquid separating function, thus ensure that to only have the cold-producing medium of gaseous state can be back in jet compressor 1, avoids jet compressor 1 to produce liquid hit phenomenon further.
Describe the air injection enthalpy-increasing air-conditioning system 100 according to the utility model second aspect embodiment below with reference to Fig. 1, air injection enthalpy-increasing air-conditioning system 100 is made up of off-premises station and indoor set, and wherein indoor set can be one or more.
As shown in Figure 1, according to the air injection enthalpy-increasing air-conditioning system 100 of the utility model embodiment, comprise jet compressor 1, commutation assembly 2, first outdoor heat exchanger 3, second outdoor heat exchanger 4, auxiliary electron expansion valve component.
Particularly, jet compressor 1 has exhaust outlet 13, gas returning port 12 and jet 11, commutation assembly 2 has the first valve port 21 to the 4th valve port 24, first valve port 21 is communicated with one of them in the 3rd valve port 23 with the second valve port 22,4th valve port 24 and the second valve port 22 are communicated with another in the 3rd valve port 23, first valve port 21 is connected with exhaust outlet 13, and the 4th valve port 24 is connected with gas returning port 12.Preferably, commutation assembly 2 can be cross valve, it is appreciated of course that commutation assembly 2 can also be other structures, as long as can realize commutating.
When air injection enthalpy-increasing air-conditioning system 100 is freezed, the first valve port 21 is communicated with the second valve port 22, and the 3rd valve port 23 is communicated with the 4th valve port 24.When air injection enthalpy-increasing air-conditioning system 100 heats, the first valve port 21 is communicated with the 3rd valve port 23, and the second valve port 22 is communicated with the 4th valve port 24.
The first end 31 of the first outdoor heat exchanger is connected with the second valve port 22, second outdoor heat exchanger 4 comprises the first heat exchange stream 41 and the second heat exchange stream 42 of mutual heat exchange, main electronic expansion valve module is in series with between the first end 411 of the first heat exchange stream and the second end 32 of the first outdoor heat exchanger, second end 412 of the first heat exchange stream is connected with indoor set system, the outlet 422 of the second heat exchange stream is connected with jet 11, thus can when low-temperature heating, by the refrigerant injection after the evaporation of the outlet 422 of the second heat exchange stream in the jet 11 of jet compressor 1, thus increase system hypothermia heating capacity.
The first end (first end 61 of the auxiliary electron expansion valve such as shown in Fig. 1) of auxiliary electron expansion valve component is connected with the entrance 421 of the second heat exchange stream, and the second end of the second end 412 or auxiliary electron expansion valve component that second end (the second end 62 of the auxiliary electron expansion valve such as shown in Fig. 1) of auxiliary electron expansion valve component is connected to the first heat exchange stream is connected between main electronic expansion valve module and the first heat exchange stream 41.
When the second end of auxiliary electron expansion valve component is connected to the second end 412 of the first heat exchange stream, when air injection enthalpy-increasing air-conditioning system 100 is freezed, cold-producing medium after main electronic expansion valve module reducing pressure by regulating flow enters into the first heat exchange stream 41, to discharge and cold-producing medium after auxiliary electron expansion valve component reducing pressure by regulating flow enters in the second heat exchange stream 42 from the first heat exchange stream 41, therefore there is the temperature difference between the first heat exchange stream 41 and the second heat exchange stream 42, between the first heat exchange stream 41 and the second heat exchange stream 42, carry out heat exchange.
When the second end of auxiliary electron expansion valve component is connected to the second end 412 of the first heat exchange stream, when air injection enthalpy-increasing air-conditioning system 100 heats, a part for the cold-producing medium of machine outflow enters into the second heat exchange stream 42 after auxiliary electron expansion valve component reducing pressure by regulating flow indoor, another part cold-producing medium that machine flows out indoor directly enters into the first heat exchange stream 41, therefore there is the temperature difference between the first heat exchange stream 41 and the second heat exchange stream 42, between the first heat exchange stream 41 and the second heat exchange stream 42, carry out heat exchange.The cold-producing medium of discharging from the first heat exchange stream 41 is drained into the first outdoor heat exchanger 3 after main electronic expansion valve module reducing pressure by regulating flow.
When the second end of auxiliary electron expansion valve component is connected between main electronic expansion valve module and the first heat exchange stream 41, when air injection enthalpy-increasing air-conditioning system 100 is freezed, part of refrigerant after main electronic expansion valve module reducing pressure by regulating flow enters into the first heat exchange stream 41, another part cold-producing medium after main electronic expansion valve module reducing pressure by regulating flow enters in the second heat exchange stream 42 again after auxiliary electron expansion valve component reducing pressure by regulating flow, therefore there is the temperature difference between the first heat exchange stream 41 and the second heat exchange stream 42, heat exchange is carried out between first heat exchange stream 41 and the second heat exchange stream 42.
When the second end of auxiliary electron expansion valve component is connected between main electronic expansion valve module and the first heat exchange stream 41, when air injection enthalpy-increasing air-conditioning system 100 heats, the cold-producing medium that machine flows out indoor enters into the first heat exchange stream 41, the part of refrigerant of discharging from the first heat exchange stream 41 enters in the second heat exchange stream 42 after auxiliary electron expansion valve component reducing pressure by regulating flow, therefore there is the temperature difference between the first heat exchange stream 41 and the second heat exchange stream 42, between the first heat exchange stream 41 and the second heat exchange stream 42, carry out heat exchange.Another part cold-producing medium of discharging from the first heat exchange stream 41 is drained into the first outdoor heat exchanger 3 after main electronic expansion valve module reducing pressure by regulating flow.
It can thus be appreciated that by arranging auxiliary electron expansion valve component, make to there is the temperature difference to carry out heat exchange between the first heat exchange stream 41 and the second heat exchange stream 42.
Wherein the sectional area summation of main electronic expansion valve module is 1≤SL≤16 with the span of the ratio SL of the sectional area summation of auxiliary electron expansion valve component.It should be noted that, sectional area refers to the sectional area of the spool of electric expansion valve, and when main electronic expansion valve module comprises multiple main electric expansion valve, the sectional area summation of main electronic expansion valve module refers to the sectional area sum of multiple main electric expansion valve 5.When auxiliary electron expansion valve component comprises multiple auxiliary electron expansion valve, the sectional area summation of auxiliary electron expansion valve component refers to the sectional area sum of multiple auxiliary electron expansion valve 6.By rationally arranging the ratio SL of the sectional area summation of main electronic expansion valve module and the sectional area summation of auxiliary electron expansion valve component, the assignment of traffic of system can be made reasonable, thus reaches the effect significantly promoting heating effect and system energy efficiency thus.
According to the air injection enthalpy-increasing air-conditioning system 100 of the utility model embodiment, by the ratio SL of the sectional area summation of the sectional area summation with auxiliary electron expansion valve component that rationally arrange electronic expansion valve module, can significantly promote heating effect and system energy efficiency, make the flow matches of system more reasonable, can also avoid causing a large amount of cold-producing medium of system for crossing cold and spraying simultaneously, avoid because emitted dose is excessive and cause system to have liquid hammer risk, thus not only can improve the comfortableness of user's use, but also the reliability of system works can be improved.
In embodiments more of the present utility model, when the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 is for being less than 3.6 kilowatt hours, the span of SL is 1≤SL≤1.5; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 3.6 kilowatts to 5 kilowatt hours, the span of SL is 1≤SL≤2; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 5 kilowatts to 12 kilowatt hours, the span of SL is 1≤SL≤2.5; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 12 kilowatts to 16 kilowatt hours, the span of SL is 1≤SL≤3; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 16 kilowatts to 20 kilowatt hours, the span of SL is 1≤SL≤4; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 20 kilowatts to 25 kilowatt hours, the span of SL is 1≤SL≤5; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 25 kilowatts to 33.5 kilowatt hours, the span of SL is 1.5≤SL≤6; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 33.5 kilowatts to 45 kilowatt hours, the span of SL is 2≤SL≤8; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 45 kilowatts to 67.5 kilowatt hours, the span of SL is 3≤SL≤15; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 67.5 kilowatts to 78 kilowatt hours, the span of SL is 3.5≤SL≤16; When the specified refrigerating capacity of air injection enthalpy-increasing air-conditioning system 100 be 78 kilowatts to 90 kilowatt hours, the span of SL is 4≤SL≤16.
The SL value that air injection enthalpy-increasing air-conditioning system 100 is corresponding suitable when the refrigerating capacity of special value scope can be ensured thus, can be used for cold and sprayed by a large amount of cold-producing medium of anti-locking system, avoid because system refrigerant internal circulating load is on the low side and cause heating effect to be deteriorated, system energy efficiency step-down, or emitted dose is excessive and cause system to have liquid hammer risk, thus improve heating effect and the system energy efficiency of system.
In embodiments more of the present utility model, main electronic expansion valve module is a main electric expansion valve 5 or is multiplely connected in parallel main electric expansion valve 5.Such as, in the example of fig. 1, main electronic expansion valve module is a main electric expansion valve 5, thus can so that the control of whole air-conditioning system, as long as regulate its bore or sectional area just can realize the adjustment of the flow of main electronic expansion valve module.When main electronic expansion valve module is the main electric expansion valve 5 of multiple parallel connection, the diversity of the adjustment of main electronic expansion valve module can be increased.Such as, can be regulated one of them, two or morely realize main electronic expansion valve module flow, one or more in the main electric expansion valve 5 of simultaneously multiple parallel connection can close, all the other can open and use, when use in main electric expansion valve 5 block time, can open be in closed condition all the other main electric expansion valves 5 to realize the normal operation of system.
Alternatively, in embodiments more of the present utility model, the outlet 422 of the second heat exchange stream is connected with gas returning port 12, is in series with block valve between the outlet 422 of the second heat exchange stream and jet 11 and/or between the outlet 422 of the second heat exchange stream and gas returning port 12.That is, second heat exchange stream 42 is connected with gas returning port 12 with jet 11, and block valve can be located between the second heat exchange stream 42 and jet 11, also can be located between the second heat exchange stream 42 and gas returning port 12, can also be located between the second heat exchange stream 42 and jet 11 and between the second heat exchange stream 42 and gas returning port 12 simultaneously.It should be noted that, the effect of block valve is the medium connected or block in pipeline, can control the break-make of the cold-producing medium between the second heat exchange stream 42 and jet 11 and/or between the second heat exchange stream 42 and gas returning port 12 thus according to demand.Such as, when only making the outlet 422 of the second heat exchange stream be communicated with gas returning port 12, can play a part to be cold.
In embodiments more of the present utility model, with reference to Fig. 1, air injection enthalpy-increasing air-conditioning system 100 also comprises gas-liquid separator 7, and the entrance of gas-liquid separator 7 is connected with the 4th valve port 24, and the gas vent of gas-liquid separator 7 is connected with gas returning port 12.Wherein gas-liquid separator 7 can play gas liquid separating function, thus ensure that to only have the cold-producing medium of gaseous state can be back in jet compressor 1, avoids jet compressor 1 to produce liquid hit phenomenon further.
Briefly describe the air injection enthalpy-increasing air-conditioning system 100 according to the utility model specific embodiment below with reference to Fig. 1, following description is exemplary, is intended to for explaining the utility model, and can not be interpreted as restriction of the present utility model.
As shown in Figure 1, according to the air injection enthalpy-increasing air-conditioning system 100 of the utility model embodiment, comprising: jet compressor 1, commutation assembly 2, first outdoor heat exchanger 3, second outdoor heat exchanger 4, main electric expansion valve, 5, auxiliary electron expansion valve 6 and gas-liquid separator 7.
Particularly, jet compressor 1 has exhaust outlet 13, gas returning port 12 and jet 11, commutation assembly 2 has the first valve port 21, second valve port 22, the 3rd valve port 23 and the 4th valve port 24, first valve port 21 is communicated with in the 3rd valve port 23 with the second valve port 22, and the 4th valve port 24 and the second valve port 22 are communicated with another in the 3rd valve port 23.Second outdoor heat exchanger 4 has the first heat exchange stream 41 and the second heat exchange stream 42, second heat exchange stream 42 has entrance 421 and outlet 422.
In air injection enthalpy-increasing air-conditioning system 100, the first end 31 of the first outdoor heat exchanger is connected with the second valve port 22, second end 32 of the first outdoor heat exchanger is connected with the first end 51 of main electric expansion valve, second end 52 of main electric expansion valve is connected with the first end 411 of the first heat exchange stream, and the second end 412 of the first heat exchange stream is connected with indoor set.The outlet 422 of the second heat exchange stream is connected with the jet 11 of jet compressor 1, and the entrance 421 of the second heat exchange stream is connected with the first end 61 of auxiliary electron expansion valve, and the second end 62 of auxiliary electron expansion valve is connected with the second end 412 of the first heat exchange stream.First valve port 21 is connected with exhaust outlet 13, and the 4th valve port 24 is connected with gas returning port 12, and is provided with gas-liquid separator 7 in the 4th valve port 24 with the stream of gas returning port 12.
In air injection enthalpy-increasing air-conditioning system 100 is run, the flow of cold-producing medium in regulating system stream can be carried out by the bore or sectional area regulating main electric expansion valve 5 and auxiliary electron expansion valve 6, thus improve heating effect and the system energy efficiency of system, and then improve the comfortableness of user.
In description of the present utility model, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ", " thickness ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", " outward ", " clockwise ", " counterclockwise ", " axis ", " radial direction ", orientation or the position relationship of the instruction such as " circumference " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as restriction of the present utility model.
In addition, term " first ", " second " only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, be limited with " first ", the feature of " second " can express or impliedly comprise at least one this feature.In description of the present utility model, the implication of " multiple " is at least two, such as two, three etc., unless otherwise expressly limited specifically.
In the utility model, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or integral; Can be mechanical connection, also can be electrical connection or each other can communication; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals or the interaction relationship of two elements, unless otherwise clear and definite restriction.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the utility model can be understood as the case may be.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature " on " or D score can be that the first and second features directly contact, or the first and second features are by intermediary mediate contact.And, fisrt feature second feature " on ", " top " and " above " but fisrt feature directly over second feature or oblique upper, or only represent that fisrt feature level height is higher than second feature.Fisrt feature second feature " under ", " below " and " below " can be fisrt feature immediately below second feature or tiltedly below, or only represent that fisrt feature level height is less than second feature.
In the description of this description, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means to describe in conjunction with this embodiment or example are contained at least one embodiment of the present utility model or example.In this manual, to the schematic representation of above-mentioned term not must for be identical embodiment or example.And the specific features of description, structure, material or feature can combine in one or more embodiment in office or example in an appropriate manner.In addition, when not conflicting, the feature of the different embodiment described in this description or example and different embodiment or example can carry out combining and combining by those skilled in the art.
Although illustrate and described embodiment of the present utility model above, be understandable that, above-described embodiment is exemplary, can not be interpreted as restriction of the present utility model, those of ordinary skill in the art can change above-described embodiment, revises, replace and modification in scope of the present utility model.

Claims (12)

1. an air injection enthalpy-increasing air-conditioning system, is characterized in that, comprising:
Jet compressor, described jet compressor has exhaust outlet, gas returning port and jet;
Commutation assembly, described commutation assembly has the first valve port to the 4th valve port, described first valve port is communicated with one of them in the 3rd valve port with the second valve port, described 4th valve port and described second valve port are communicated with another in described 3rd valve port, described first valve port is connected with described exhaust outlet, and described 4th valve port is connected with described gas returning port; First outdoor heat exchanger, the first end of described first outdoor heat exchanger is connected with described second valve port;
Second outdoor heat exchanger, described second outdoor heat exchanger comprises the first heat exchange stream and the second heat exchange stream of mutual heat exchange, main electronic expansion valve module is in series with between the first end of described first heat exchange stream and the second end of described first outdoor heat exchanger, second end of described first heat exchange stream is connected with indoor set system, and the outlet of described second heat exchange stream is connected with described jet;
Auxiliary electron expansion valve component, the first end of described auxiliary electron expansion valve component is connected with the entrance of described second heat exchange stream, and the second end of the second end or described auxiliary electron expansion valve component that the second end of described auxiliary electron expansion valve component is connected to described first heat exchange stream is connected between described main electronic expansion valve module and described first heat exchange stream;
The bore summation of wherein said main electronic expansion valve module is 1≤DB≤7 with the span of the ratio DB of the bore summation of described auxiliary electron expansion valve component.
2. air injection enthalpy-increasing air-conditioning system according to claim 1, is characterized in that,
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system is for being less than 3.6 kilowatt hours, the span of described DB is 1≤DB≤1.5;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 3.6 kilowatts to 5 kilowatt hours, the span of described DB is 1≤DB≤2;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 5 kilowatts to 12 kilowatt hours, the span of described DB is 1.5≤DB≤2;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 12 kilowatts to 16 kilowatt hours, the span of described DB is 1.5≤DB≤2.2;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 16 kilowatts to 20 kilowatt hours, the span of described DB is 1.5≤DB≤2.5;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 20 kilowatts to 25 kilowatt hours, the span of described DB is 1.5≤DB≤3;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 25 kilowatts to 33.5 kilowatt hours, the span of described DB is 1.5≤DB≤3.5;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 33.5 kilowatts to 45 kilowatt hours, the span of described DB is 1.5≤DB≤4;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 45 kilowatts to 67.5 kilowatt hours, the span of described DB is 2≤DB≤4;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 67.5 kilowatts to 78 kilowatt hours, the span of described DB is 2.2≤DB≤4;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 78 kilowatts to 90 kilowatt hours, the span of described DB is 2.2≤DB≤4.5.
3. air injection enthalpy-increasing air-conditioning system according to claim 1, is characterized in that, the sectional area summation of described main electronic expansion valve module is 1≤SL≤16 with the span of the ratio SL of the sectional area summation of described auxiliary electron expansion valve component.
4. air injection enthalpy-increasing air-conditioning system according to claim 3, is characterized in that, when the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system is for being less than 3.6 kilowatt hours, the span of described SL is 1≤SL≤1.5;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 3.6 kilowatts to 5 kilowatt hours, the span of described SL is 1≤SL≤2;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 5 kilowatts to 12 kilowatt hours, the span of described SL is 1≤SL≤2.5;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 12 kilowatts to 16 kilowatt hours, the span of described SL is 1≤SL≤3;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 16 kilowatts to 20 kilowatt hours, the span of described SL is 1≤SL≤4;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 20 kilowatts to 25 kilowatt hours, the span of described SL is 1≤SL≤5;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 25 kilowatts to 33.5 kilowatt hours, the span of described SL is 1.5≤SL≤6;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 33.5 kilowatts to 45 kilowatt hours, the span of described SL is 2≤SL≤8;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 45 kilowatts to 67.5 kilowatt hours, the span of described SL is 3≤SL≤15;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 67.5 kilowatts to 78 kilowatt hours, the span of described SL is 3.5≤SL≤16;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 78 kilowatts to 90 kilowatt hours, the span of described SL is 4≤SL≤16.
5. air injection enthalpy-increasing air-conditioning system according to claim 1, is characterized in that, described main electronic expansion valve module is a main electric expansion valve or multiple main electric expansion valve be connected in parallel.
6. air injection enthalpy-increasing air-conditioning system according to claim 1, is characterized in that, also comprise gas-liquid separator, and the entrance of described gas-liquid separator is connected with described 4th valve port, and the gas vent of described gas-liquid separator is connected with described gas returning port.
7. air injection enthalpy-increasing air-conditioning system according to claim 1, it is characterized in that, the outlet of described second heat exchange stream is connected with described gas returning port, is in series with block valve between the outlet of described second heat exchange stream and described jet and/or between the outlet of described second heat exchange stream and described gas returning port.
8. an air injection enthalpy-increasing air-conditioning system, is characterized in that, comprising:
Jet compressor, described jet compressor has exhaust outlet, gas returning port and jet;
Commutation assembly, described commutation assembly has the first valve port to the 4th valve port, described first valve port is communicated with one of them in the 3rd valve port with the second valve port, described 4th valve port and described second valve port are communicated with another in described 3rd valve port, described first valve port is connected with described exhaust outlet, and described 4th valve port is connected with described gas returning port;
First outdoor heat exchanger, the first end of described first outdoor heat exchanger is connected with described second valve port;
Second outdoor heat exchanger, described second outdoor heat exchanger comprises the first heat exchange stream and the second heat exchange stream of mutual heat exchange, to connect between the first end of described first heat exchange stream and the second end of described first outdoor heat exchanger main electronic expansion valve module, second end of described first heat exchange stream is connected with indoor set system, and the outlet of described second heat exchange stream is connected with described jet;
Auxiliary electron expansion valve component, the first end of described auxiliary electron expansion valve component is connected with the entrance of described second heat exchange stream, and the second end of the second end or described auxiliary electron expansion valve component that the second end of described auxiliary electron expansion valve component is connected to described first heat exchange stream is connected between described main electronic expansion valve module and described first heat exchange stream;
The sectional area summation of wherein said main electronic expansion valve module is 1≤SL≤16 with the span of the ratio SL of the sectional area summation of described auxiliary electron expansion valve component.
9. air injection enthalpy-increasing air-conditioning system according to claim 8, is characterized in that, when the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system is for being less than 3.6 kilowatt hours, the span of described SL is 1≤SL≤1.5;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 3.6 kilowatts to 5 kilowatt hours, the span of described SL is 1≤SL≤2;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 5 kilowatts to 12 kilowatt hours, the span of described SL is 1≤SL≤2.5;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 12 kilowatts to 16 kilowatt hours, the span of described SL is 1≤SL≤3;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 16 kilowatts to 20 kilowatt hours, the span of described SL is 1≤SL≤4;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 20 kilowatts to 25 kilowatt hours, the span of described SL is 1≤SL≤5;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 25 kilowatts to 33.5 kilowatt hours, the span of described SL is 1.5≤SL≤6;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 33.5 kilowatts to 45 kilowatt hours, the span of described SL is 2≤SL≤8;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 45 kilowatts to 67.5 kilowatt hours, the span of described SL is 3≤SL≤15;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 67.5 kilowatts to 78 kilowatt hours, the span of described SL is 3.5≤SL≤16;
When the specified refrigerating capacity of described air injection enthalpy-increasing air-conditioning system be 78 kilowatts to 90 kilowatt hours, the span of described SL is 4≤SL≤16.
10. air injection enthalpy-increasing air-conditioning system according to claim 8, is characterized in that, described main electronic expansion valve module is a main electric expansion valve or is multiplely connected in parallel main electric expansion valve.
11. air injection enthalpy-increasing air-conditioning systems according to claim 8, is characterized in that, also comprise gas-liquid separator, and the entrance of described gas-liquid separator is connected with described 4th valve port, and the gas vent of described gas-liquid separator is connected with described gas returning port.
12. air injection enthalpy-increasing air-conditioning systems according to claim 8, it is characterized in that, the outlet of described second heat exchange stream is connected with described gas returning port, is in series with block valve between the outlet of described second heat exchange stream and described jet and/or between the outlet of described second heat exchange stream and described gas returning port.
CN201520844824.7U 2015-10-27 2015-10-27 Enhanced vapor injection air conditioning system Withdrawn - After Issue CN205102288U (en)

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CN201520844824.7U CN205102288U (en) 2015-10-27 2015-10-27 Enhanced vapor injection air conditioning system
MX2017015002A MX2017015002A (en) 2015-10-27 2016-07-04 Enhanced vapor injection air conditioning system.
JP2018513715A JP2018516355A (en) 2015-10-27 2016-07-04 Steam injection increased enthalpy air conditioning system
EP16826276.4A EP3187789A4 (en) 2015-10-27 2016-07-04 Enhanced vapor injection air conditioning system
PCT/CN2016/088434 WO2017071289A1 (en) 2015-10-27 2016-07-04 Enhanced vapor injection air conditioning system
US15/502,018 US10260780B2 (en) 2015-10-27 2016-07-04 Enhanced vapor injection air conditioning system
BR112017002132A BR112017002132A2 (en) 2015-10-27 2016-07-04 improved steam injection air conditioning system

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105240957A (en) * 2015-10-27 2016-01-13 广东美的暖通设备有限公司 Enhanced vapor injection air conditioner system
WO2017071289A1 (en) * 2015-10-27 2017-05-04 广东美的暖通设备有限公司 Enhanced vapor injection air conditioning system
CN107084501A (en) * 2017-05-19 2017-08-22 广东志高暖通设备股份有限公司 A kind of control method of air injection enthalpy-increasing air-conditioning system
CN107192156A (en) * 2017-05-18 2017-09-22 广东美的暖通设备有限公司 Air conditioner, the defrosting control method of air conditioner and system
CN107883487A (en) * 2017-10-17 2018-04-06 芜湖美智空调设备有限公司 Heat pump type air conditioning system, heat pump air conditioner and its control method and storage medium

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105240957A (en) * 2015-10-27 2016-01-13 广东美的暖通设备有限公司 Enhanced vapor injection air conditioner system
WO2017071289A1 (en) * 2015-10-27 2017-05-04 广东美的暖通设备有限公司 Enhanced vapor injection air conditioning system
CN105240957B (en) * 2015-10-27 2018-10-16 广东美的暖通设备有限公司 Air injection enthalpy-increasing air-conditioning system
US10260780B2 (en) 2015-10-27 2019-04-16 Gd Midea Heating & Ventilating Equipment Co., Ltd. Enhanced vapor injection air conditioning system
CN107192156B (en) * 2017-05-18 2021-03-02 广东美的暖通设备有限公司 Air conditioner and defrosting control method and system of air conditioner
CN107192156A (en) * 2017-05-18 2017-09-22 广东美的暖通设备有限公司 Air conditioner, the defrosting control method of air conditioner and system
CN107084501B (en) * 2017-05-19 2019-07-09 广东志高暖通设备股份有限公司 A kind of control method of air injection enthalpy-increasing air-conditioning system
CN107084501A (en) * 2017-05-19 2017-08-22 广东志高暖通设备股份有限公司 A kind of control method of air injection enthalpy-increasing air-conditioning system
CN107883487A (en) * 2017-10-17 2018-04-06 芜湖美智空调设备有限公司 Heat pump type air conditioning system, heat pump air conditioner and its control method and storage medium

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