CN104613665A - Heat pump air conditioner system - Google Patents

Heat pump air conditioner system Download PDF

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Publication number
CN104613665A
CN104613665A CN201510055553.1A CN201510055553A CN104613665A CN 104613665 A CN104613665 A CN 104613665A CN 201510055553 A CN201510055553 A CN 201510055553A CN 104613665 A CN104613665 A CN 104613665A
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CN
China
Prior art keywords
economizer
gas
compressor
cold
producing medium
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.)
Pending
Application number
CN201510055553.1A
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Chinese (zh)
Inventor
杨智峰
焦华超
冯涛
熊建国
余凯
曹世皇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201510055553.1A priority Critical patent/CN104613665A/en
Publication of CN104613665A publication Critical patent/CN104613665A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B29/00Combined heating and refrigeration systems, e.g. operating alternately or simultaneously
    • F25B29/003Combined heating and refrigeration systems, e.g. operating alternately or simultaneously of the compression type system
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/31Expansion valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • F25B41/37Capillary tubes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2400/00General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/04Refrigeration circuit bypassing means
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2400/00General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/19Pumping down refrigerant from one part of the cycle to another part of the cycle, e.g. when the cycle is changed from cooling to heating, or before a defrost cycle is started
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT-PUMP SYSTEMS
    • F25B2500/00Problems to be solved
    • F25B2500/09Improving heat transfers

Abstract

The invention discloses a heat pump air conditioner system. The heat pump air conditioner system comprises a compressor, an indoor heat exchanger, a first throttling device, an economizer, a second throttling device, an outdoor heat exchanger, a gas-liquid separator and an enhanced vapor injection refrigerating/heating circulating loop partially or totally composed in a third throttling device. The heat pump air conditioner system further comprises a first solenoid valve and a second solenoid valve. A connector of an auxiliary loop of the economizer and a vapor injection opening of the compressor is further communicated with an inlet of the gas-liquid separator through a pipe. The first solenoid valve is arranged on a connection pipe between the auxiliary loop of the economizer and an inlet of the gas-liquid separator. The second solenoid valve is arranged on a connection pipe between the auxiliary loop of the economizer and the vapor injection opening of the compressor. By means of the heat pump air conditioner system, the heat exchange temperature difference between the gas side and the liquid side of the economizer is increased, and higher heat exchange efficiency is achieved; the condensate depression of the system is improved in the refrigerating operating process, and capacity attenuation of unit long piping in the mounting process is reduced.

Description

Heat pump type air conditioning system
Technical field
The present invention relates to field of air conditioning, particularly relate to a kind of heat pump type air conditioning system.
Background technology
Under the main advantage of air injection enthalpy-increasing technology is worst cold case, heating performance is high, and it applies comparatively extensive in low-temperature heat pump water heater, in low temperature heat pump air conditioning system, also have application.Only heat circulation when being applied to the former, there is when being applied to the latter refrigeration and heat circulation.When air injection enthalpy-increasing technology is applied in heat pump type air conditioning system, especially when large sized unit Super long tube system is applied, because during refrigerating operaton, system degree of supercooling is less, easily cause refrigerant shwoot in off-premises station to indoor set pipe arrangement serious, thus cause the obvious decay of complete machine capability.
Therefore, improving the degree of supercooling of heat pump type air conditioning system when refrigerating operaton is this area technical problem urgently to be resolved hurrily.
Summary of the invention
Based on this, be necessary the defect for prior art and deficiency, provide a kind of heat pump type air conditioning system based on air injection enthalpy-increasing technology, it has higher heat exchange efficiency and system degree of supercooling, reduces ability decay when unit Super long tube is installed.
For realizing the heat pump type air conditioning system that the object of the invention provides, comprise compressor, indoor heat exchanger, first throttle device, economizer, the second throttling arrangement, outdoor heat exchanger and the gas-liquid separator of connecting successively, the air entry of described compressor connects the outlet of described gas-liquid separator by pipeline; Wherein, the major loop of described economizer by placed in series between described first throttle device and described second throttling arrangement, the subsidiary loop of described economizer by placed in series between described first throttle device and the gas supplementing opening of described compressor; Connecting pipe between the subsidiary loop of described economizer and described first throttle device is provided with the 3rd throttling arrangement, also comprises the first magnetic valve and the second magnetic valve;
The interface that the subsidiary loop of described economizer is connected with the gas supplementing opening of described compressor is also communicated with by the entrance of pipeline with described gas-liquid separator;
Described first magnetic valve is arranged in the connecting pipe between the subsidiary loop of described economizer and the entrance of described gas-liquid separator;
Described second magnetic valve is arranged in the connecting pipe between the subsidiary loop of described economizer and the gas supplementing opening of described compressor.
Wherein in an embodiment, heat pump type air conditioning system of the present invention, also comprises cross valve;
The first interface of described cross valve connects the exhaust outlet of described compressor by pipeline, second interface connects described indoor heat exchanger by pipeline, 3rd interface connects the entrance of described gas-liquid separator by pipeline, the 4th interface connects described outdoor heat exchanger by pipeline.
Wherein in an embodiment, heat pump type air conditioning system of the present invention, had SAPMAC method pattern;
When described heat pump type air conditioning system is in described SAPMAC method pattern excessively, described first magnetic valve is opened, described second magnetic valve cut-off;
Cold-producing medium is successively by the major loop of described compressor, cross valve, outdoor heat exchanger, the second throttling arrangement, economizer, the cold-producing medium flowed out from the outlet of the major loop of described economizer is divided into two-way, first via cold-producing medium by described first throttle device, indoor heat exchanger, cross valve, enters described gas-liquid separator successively; Second road cold-producing medium by described 3rd throttling arrangement, the subsidiary loop of economizer, the first magnetic valve, arrives described gas-liquid separator, converges with described first via cold-producing medium successively; Cold-producing medium after converging enters the air entry of described compressor from the outlet of described gas-liquid separator.
Wherein in an embodiment, heat pump type air conditioning system of the present invention, has tonifying Qi increasing enthalpy and heats circulation pattern;
When described heat pump type air conditioning system be in described tonifying Qi increase enthalpy heat circulation pattern time, described first magnetic valve cut-off, described second magnetic valve is opened;
Cold-producing medium is successively by described compressor, cross valve, indoor heat exchanger, first throttle device; Cold-producing medium after the throttling of described first throttle device is divided into two-way, and first via cold-producing medium by major loop, the second throttling arrangement, outdoor heat exchanger, cross valve, the gas-liquid separator of described economizer, enters the air entry of described compressor successively; Second road cold-producing medium by described 3rd throttling arrangement, the subsidiary loop of economizer, the second magnetic valve, enters the gas supplementing opening of described compressor successively.
Wherein in an embodiment, heat pump type air conditioning system of the present invention, has tonifying Qi and increases enthalpy kind of refrigeration cycle pattern;
When described heat pump type air conditioning system is in described tonifying Qi increasing enthalpy kind of refrigeration cycle pattern, described first magnetic valve cut-off, described second magnetic valve is opened;
Cold-producing medium is successively by the major loop of described compressor, cross valve, outdoor heat exchanger, the second throttling arrangement, economizer, the cold-producing medium flowed out from the outlet of the major loop of described economizer is divided into two-way, first via cold-producing medium by described first throttle device, indoor heat exchanger, cross valve, gas-liquid separator, enters the air entry of described compressor successively; Second road cold-producing medium by described 3rd throttling arrangement, the subsidiary loop of economizer, the second magnetic valve, enters the gas supplementing opening of described compressor successively.
Wherein in an embodiment, described first throttle device and described second throttling arrangement are capillary or electric expansion valve.
Wherein in an embodiment, described 3rd throttling arrangement is electric expansion valve.
Beneficial effect of the present invention: heat pump type air conditioning system of the present invention, the interface (i.e. the gas side outlet of economizer) be connected with the gas supplementing opening of compressor by the subsidiary loop of economizer is communicated with the entrance of gas-liquid separator by pipeline, make on the basis that tonifying Qi increases enthalpy system, add a loop, improve the heat transfer temperature difference of economizer gas-liquid both sides, thus there is higher heat exchange efficiency; Improve system degree of supercooling, decrease ability decay when unit Super long tube is installed.
Accompanying drawing explanation
In order to make the object of heat pump type air conditioning system of the present invention, technical scheme and advantage clearly understand, below in conjunction with concrete drawings and the specific embodiments, heat pump type air conditioning system of the present invention is further elaborated.
Fig. 1 is the structural representation of an embodiment of heat pump type air conditioning system of the present invention.
Detailed description of the invention
Heat pump type air conditioning system provided by the invention is described in detail below in conjunction with embodiment.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can combine mutually.
See Fig. 1, heat pump type air conditioning system provided by the invention, comprise the compressor 1 of connecting successively (wherein, compressor 1 has air entry 11, gas supplementing opening 12 and exhaust outlet 13), cross valve 2 (realizing the automatic switchover between multiple operational mode) indoor heat exchanger 3, first throttle device 4, economizer 5, second throttling arrangement 6, outdoor heat exchanger 7 and gas-liquid separator 8, the air entry 11 of compressor 1 connects the outlet of gas-liquid separator 8 by pipeline.
Wherein, the first interface 21 of cross valve 2 connects the exhaust outlet 13 of compressor by pipeline, second interface 22 connects the entrance of indoor heat exchanger the 3, three interface 23 by pipeline connection gas-liquid separator 8 by pipeline, and the 4th interface 24 is by pipeline junction chamber external heat exchanger 7.
The major loop of economizer 5 by placed in series between first throttle device 4 and the second throttling arrangement 6, the subsidiary loop of economizer 5 between first throttle device 4 and the gas supplementing opening 12 of compressor 1, the connecting pipe between the subsidiary loop of economizer 5 and first throttle device 4 is provided with the 3rd throttling arrangement 9 by placed in series.
First throttle device 4, second throttling arrangement 6 and the 3rd throttling arrangement 9 all mainly play reducing pressure by regulating flow, can be capillary or electric expansion valve etc.Wherein, the 3rd throttling arrangement 9 is preferably electric expansion valve, stable performance, energy-conservation, is convenient to Automated condtrol.
Said structure achieves complete tonifying Qi increasing enthalpy and heats/refrigeration cycle.On this basis, heat pump type air conditioning system provided by the invention also comprises a mistake SAPMAC method loop.Be specially, also comprise the first magnetic valve 10 and the second magnetic valve 11.The interface (i.e. the gas side outlet of economizer 5) that the subsidiary loop of economizer 5 is connected with the gas supplementing opening 12 of compressor 1 is also communicated with by the entrance of pipeline with gas-liquid separator 8.First magnetic valve 10 is arranged in the connecting pipe between the subsidiary loop of economizer 5 and the entrance of gas-liquid separator 8, and the second magnetic valve 11 is arranged in the connecting pipe between the subsidiary loop of economizer 5 and the gas supplementing opening 12 of compressor 1.
Gas supplementing opening 12 place of compressor 1 is the middle pressure position in system, and the porch of gas-liquid separator 8 is locations of low pressure of system.When using SAPMAC method loop, by by economizer 5 gas side (subsidiary loop) throttling to lower pressure, corresponding lower saturation temperature, gas side temperature is lower, and the temperature difference of relative liquid side (major loop) is larger, and heat exchanging is favourable.
So, the interface (i.e. the gas side outlet of economizer 5) that the subsidiary loop of economizer 5 is connected with the gas supplementing opening 12 of compressor 1 by heat pump type air conditioning system of the present invention is communicated with by the entrance of pipeline with gas-liquid separator 8, thus be increased to gas Fen mono-tunnel, the degree of supercooling of system can be improved greatly.Cold-producing medium through the 3rd throttling arrangement 9 reducing pressure by regulating flow and in economizer 5 after heat exchange, is divided into two-way to control.Design the break-make that the first magnetic valve 10 and the second magnetic valve 11 control this two-way respectively, control to realize different systemic circulation by the break-make of the first magnetic valve 10 and the second magnetic valve 11 under different operating conditions, obtain different effects.Specific as follows:
See Fig. 1, filled arrows represents refrigerant flow direction during kind of refrigeration cycle (comprising SAPMAC method), and hollow arrow represents that the refrigerant heating circulation time flows to.
Circulation one: heat pump type air conditioning system provided by the invention, had SAPMAC method pattern.When it was in SAPMAC method pattern, the first magnetic valve 10 was opened, and the second magnetic valve 11 ends.
Cyclic process: compressor 1, by after the gas of gas refrigerant boil down to HTHP that sucked by air entry 11, is discharged through exhaust outlet 13; The gas refrigerant that exhaust outlet 13 is discharged arrives outdoor heat exchanger 7 after cross valve 2, is condensed into the liquid of HTHP; And then after the second throttling arrangement 6 throttling, enter the major loop of economizer 5, the cold-producing medium flowed out from the outlet of the major loop of economizer 5 is divided into two-way, first via cold-producing medium arrives indoor heat exchanger 3 after first throttle device 4 throttling, in indoor heat exchanger 3 after evaporation endothermic, arrive the entrance of gas-liquid separator 8 through four-way change-over valve 2; Second road cold-producing medium enters the subsidiary loop of economizer 5 after the 3rd throttling arrangement 9 reducing pressure by regulating flow, with cold-producing medium heat exchange in economizer 5 of major loop, cold-producing medium in subsidiary loop after heat exchange arrives the entrance of gas-liquid separator 8 by the first magnetic valve 10, enter the air entry 11 of compressor from the outlet of gas-liquid separator 8 together with first via cold-producing medium, complete primary system circulation.
Above-mentioned SAPMAC method of crossing can obtain larger system degree of supercooling, reduce cold-producing medium outdoor machine to the shwoot in indoor set cyclic process, thus reduce the decay reducing unit refrigerating capacity.
Circulation two: heat pump type air conditioning system provided by the invention, has tonifying Qi increasing enthalpy and heats circulation pattern.When its be in tonifying Qi increase enthalpy heat circulation pattern time, first magnetic valve cut-off the 10, second magnetic valve open 11.
Cyclic process: compressor 1, by after the gas refrigerant boil down to high temperature and high pressure gas that sucked by air entry 11 and gas supplementing opening 12, is discharged through compressor 1 exhaust outlet 13; The gas refrigerant that exhaust outlet 13 is discharged arrives indoor heat exchanger 3 after cross valve 2, and the liquid refrigerant being condensed into HTHP enters first throttle device 4; Cold-producing medium after first throttle device 4 throttling is divided into two-way, and the liquid refrigerant of first via HTHP directly enters the major loop of economizer 5; Second road cold-producing medium enters the subsidiary loop of economizer 5 after the 3rd throttling arrangement 9 reducing pressure by regulating flow; Cold-producing medium in subsidiary loop and major loop is after heat exchange, and the saturated or overheated gas cold-producing medium of the middle pressure of subsidiary loop enters the gas supplementing opening 12 of compressor 1 by the second magnetic valve 11, thus enters the compression chamber of compressor 1; By the second throttling arrangement 6 after cold-producing medium in major loop is cold by the further mistake of the cold-producing medium in subsidiary loop, become the liquid refrigerant of low-temp low-pressure, the gas refrigerant of low-temp low-pressure is evaporated to afterwards in outdoor heat exchanger 7, then reach the air entry 11 of compressor 1 through gas-liquid separator 8, complete primary system circulation.
Above-mentioned cycling through utilizes tonifying Qi to increase enthalpy technology, significantly can provide compressor air suction amount during heating operation under worst cold case, increase system refrigerant internal circulating load, improve heating capacity and the efficiency of unit.
Circulation three: heat pump type air conditioning system provided by the invention, has tonifying Qi and increases enthalpy kind of refrigeration cycle pattern.When it is in tonifying Qi increasing enthalpy kind of refrigeration cycle pattern, first magnetic valve cut-off the 10, second magnetic valve opens 11.
Compressor 1, by after the gas of gas refrigerant boil down to HTHP that sucked by air entry 11, is discharged through exhaust outlet 13; The gas refrigerant that exhaust outlet 13 is discharged arrives outdoor heat exchanger 7 after cross valve 2, is condensed into the liquid of HTHP; And then after the second throttling arrangement 6 throttling, enter the major loop of economizer 5, the cold-producing medium flowed out from the outlet of the major loop of economizer 5 is divided into two-way, first via cold-producing medium arrives indoor heat exchanger 3 after first throttle device 4 throttling, in indoor heat exchanger 3 after evaporation endothermic, arrive gas-liquid separator 8 through four-way change-over valve 2, and then enter the air entry 11 of compressor; Second road cold-producing medium enters the subsidiary loop of economizer 5 after the 3rd throttling arrangement 9 reducing pressure by regulating flow, with cold-producing medium heat exchange in economizer 5 of major loop, cold-producing medium in subsidiary loop after heat exchange arrives the gas supplementing opening 12 of compressor 1 by the second magnetic valve 11, completes primary system circulation.
Above-mentioned cycling through utilizes tonifying Qi to increase enthalpy technology, improves the circulating mass of refrigerant under compressor same frequency, significantly can improve refrigerating efficiency, improve unit refrigeration efficiency.
Heat pump type air conditioning system in the present invention, by the appropriate design of economizer and application, makes heating operation under worst cold case, is increased the skill upgrading heating capacity of enthalpy by tonifying Qi.By increasing in enthalpy system in tonifying Qi, increasing a loop, being namely communicated with the gas side outlet of economizer and the entrance of gas-liquid separator, improve the heat transfer temperature difference of economizer gas-liquid both sides, thus there is higher heat exchange efficiency.It, when freeze (excessively cold) runs, improves system degree of supercooling, decreases ability decay when unit Super long tube is installed.
Above embodiment only have expressed several embodiment of the present invention, and it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that for the person of ordinary skill of the art, without departing from the inventive concept of the premise, can also make some distortion and improvement, these all belong to protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be as the criterion with claims.

Claims (7)

1. a heat pump type air conditioning system, comprise compressor (1), indoor heat exchanger (3), first throttle device (4), economizer (5), the second throttling arrangement (6), outdoor heat exchanger (7) and the gas-liquid separator (8) of connecting successively, the air entry (11) of described compressor (1) connects the outlet of described gas-liquid separator (8) by pipeline; Wherein, the major loop of described economizer (5) by placed in series between described first throttle device (4) and described second throttling arrangement (6), the subsidiary loop of described economizer (5) by placed in series between described first throttle device (4) and the gas supplementing opening (12) of described compressor (1); Connecting pipe between the subsidiary loop of described economizer (5) and described first throttle device (4) is provided with the 3rd throttling arrangement (9), it is characterized in that, also comprise the first magnetic valve (10) and the second magnetic valve (11);
The interface that the subsidiary loop of described economizer (5) is connected with the gas supplementing opening (12) of described compressor (1) is also communicated with by the entrance of pipeline with described gas-liquid separator (8);
Described first magnetic valve (10) is arranged in the connecting pipe between the subsidiary loop of described economizer (5) and the entrance of described gas-liquid separator (8);
Described second magnetic valve (11) is arranged in the connecting pipe between the subsidiary loop of described economizer (5) and the gas supplementing opening (12) of described compressor (1).
2. heat pump type air conditioning system according to claim 1, is characterized in that, also comprises cross valve (2);
The first interface (21) of described cross valve (2) connects the exhaust outlet (13) of described compressor (1) by pipeline, second interface (22) connects described indoor heat exchanger (3) by pipeline, 3rd interface (23) connects the entrance of described gas-liquid separator (8) by pipeline, the 4th interface (24) connects described outdoor heat exchanger (7) by pipeline.
3. heat pump type air conditioning system according to claim 2, is characterized in that, has SAPMAC method pattern;
When described heat pump type air conditioning system is in described SAPMAC method pattern excessively, described first magnetic valve (10) is opened, described second magnetic valve (11) cut-off;
Cold-producing medium is successively by the major loop of described compressor (1), cross valve (2), outdoor heat exchanger (7), the second throttling arrangement (6), economizer (5), the cold-producing medium flowed out from the outlet of the major loop of described economizer (5) is divided into two-way, first via cold-producing medium by described first throttle device (4), indoor heat exchanger (3), cross valve (2), enters described gas-liquid separator (8) successively; Second road cold-producing medium by described 3rd throttling arrangement (9), the subsidiary loop of economizer (5), the first magnetic valve (10), arrives described gas-liquid separator (8), converges with described first via cold-producing medium successively; Cold-producing medium after converging enters the air entry (11) of described compressor (1) from the outlet of described gas-liquid separator (8).
4. heat pump type air conditioning system according to claim 2, is characterized in that, has tonifying Qi increasing enthalpy and heats circulation pattern;
When described heat pump type air conditioning system be in described tonifying Qi increase enthalpy heat circulation pattern time, the cut-off of described first magnetic valve (10), described second magnetic valve (11) is opened;
Cold-producing medium is successively by described compressor (1), cross valve (2), indoor heat exchanger (3), first throttle device (4); Cold-producing medium after the throttling of described first throttle device (4) is divided into two-way, first via cold-producing medium by major loop, the second throttling arrangement (6), outdoor heat exchanger (7), cross valve (2), the gas-liquid separator (8) of described economizer (5), enters the air entry (11) of described compressor (1) successively; Second road cold-producing medium by described 3rd throttling arrangement (9), the subsidiary loop of economizer (5), the second magnetic valve (11), enters the gas supplementing opening (12) of described compressor (1) successively.
5. heat pump type air conditioning system according to claim 2, is characterized in that, has tonifying Qi and increases enthalpy kind of refrigeration cycle pattern;
When described heat pump type air conditioning system is in described tonifying Qi increasing enthalpy kind of refrigeration cycle pattern, described first magnetic valve (10) cut-off, described second magnetic valve (11) is opened;
Cold-producing medium is successively by the major loop of described compressor (1), cross valve (2), outdoor heat exchanger (7), the second throttling arrangement (6), economizer (5), the cold-producing medium flowed out from the outlet of the major loop of described economizer (5) is divided into two-way, first via cold-producing medium by described first throttle device (4), indoor heat exchanger (3), cross valve (2), gas-liquid separator (8), enters the air entry (11) of described compressor (1) successively; Second road cold-producing medium by described 3rd throttling arrangement (9), the subsidiary loop of economizer (5), the second magnetic valve (11), enters the gas supplementing opening (12) of described compressor (1) successively.
6. the heat pump type air conditioning system according to any one of claim 1 to 5, is characterized in that, described first throttle device (4) and described second throttling arrangement (6) are capillary or electric expansion valve.
7. the heat pump type air conditioning system according to any one of claim 1 to 5, is characterized in that, described 3rd throttling arrangement (9) is electric expansion valve.
CN201510055553.1A 2015-02-02 2015-02-02 Heat pump air conditioner system Pending CN104613665A (en)

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CN105004090A (en) * 2015-07-09 2015-10-28 广东美的暖通设备有限公司 Multi-split air-conditioning system and supercooling and enhanced vapor injection method thereof
CN105485767A (en) * 2015-12-22 2016-04-13 珠海格力电器股份有限公司 Multi-split air-conditioning system and control method
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CN106765742A (en) * 2016-11-21 2017-05-31 珠海格力电器股份有限公司 Air-conditioner set with full-liquid type case tube heat exchanger
CN107144036A (en) * 2017-05-19 2017-09-08 青岛海信日立空调系统有限公司 Refrigerant-cycle systems, air conditioner and the air-conditioner control method of Gas-supplying enthalpy-increasing
CN107683393A (en) * 2015-06-18 2018-02-09 大金工业株式会社 Air-conditioning device
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CN111121342A (en) * 2019-12-31 2020-05-08 青岛海信日立空调系统有限公司 Heat pump system

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