CN102135341A - Capacity-adjustable heat pump air-conditioning system with refrigerant release and enthalpy-adding loops - Google Patents
Capacity-adjustable heat pump air-conditioning system with refrigerant release and enthalpy-adding loops Download PDFInfo
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- CN102135341A CN102135341A CN2010101007283A CN201010100728A CN102135341A CN 102135341 A CN102135341 A CN 102135341A CN 2010101007283 A CN2010101007283 A CN 2010101007283A CN 201010100728 A CN201010100728 A CN 201010100728A CN 102135341 A CN102135341 A CN 102135341A
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Abstract
The invention relates to a capacity-adjustable heat pump air-conditioning system with a refrigerant release loop and an enthalpy-adding loop. The air-conditioning system comprises the refrigerant release loop and the injection enthalpy-adding loop simultaneously. A compressor is provided with an intermediate pressure interface. A suction port and an exhaust port of the compressor are connected with a four-way reversing valve; and the intermediate pressure interface of the compressor is connected with the suction port of the compressor and a gaseous outlet of a flash tank respectively via two circuits connected in parallel. The release loop connected with the suction port of the compressor is provided with an electromagnetic valve and a check valve facing the suction port of the compressor; and the enthalpy-adding loop connected with the gaseous outlet of the flash tank is provided with an electromagnetic valve and a check valve facing the intermediate pressure interface of the compressor. By the on and off of the electromagnetic valves, the capacity adjustment of the refrigerant release and injection enthalpy adding at different environmental temperatures can be realized; the low-temperature heating and high-temperature refrigerating effect is improved; and the capacity of high-temperature heating and low-temperature refrigerating can be adjusted. Compared with the prior art, the invention has the advantages of simple structure, good performance and the like.
Description
Technical field
The present invention relates to a kind of heat pump air conditioner, especially relate to a kind of adjustable heat pump type air conditioning system of capacity that releases and increase the enthalpy loop with cold-producing medium.
Background technology
When the variation of ambient temperature scope was big, existing air-conditioning system heating capacity under low temperature environment sharply descended, and can not satisfy the demand that heats, and heating capacity is more than needed under hot environment, and power consumption is bigger; When freezing under hot environment, the refrigerating capacity demand is bigger, and existing air-conditioning system can not satisfy the requirement of fast-refrigerating, refrigerating capacity abundance when under low temperature environment, freezing, and the continuous start-stop of air-conditioning system consumes more energy.Existing air-conditioning system can't realize the capacity regulating under the different demands of varying environment temperature.
Summary of the invention
Purpose of the present invention is exactly to provide a kind of band cold-producing medium simple in structure, that performance is good to release and the adjustable heat pump type air conditioning system of capacity that increases the enthalpy loop for the defective that overcomes above-mentioned prior art existence.
Purpose of the present invention can be achieved through the following technical solutions: a kind of adjustable heat pump type air conditioning system of capacity that releases and increase the enthalpy loop with cold-producing medium, it is characterized in that, this system comprises compressor 1, cross valve 2, outdoor heat exchanger 3, check valve a4, capillary a5, capillary b6, capillary c7, magnetic valve a8, check valve b9, flash vessel 10, check valve c11, capillary d12, capillary e13, check valve d14, indoor heat exchanger 15, check valve e16, magnetic valve b17, magnetic valve c18, check valve f19, the jet 1-1 of described compressor 1 is connected the air entry 1-2 of compressor 1 successively with check valve f19 by magnetic valve c18, the exhaust outlet 1-3 of described compressor 1 is connected cross valve 2 respectively with air entry 1-2, described cross valve 2 is junction chamber external heat exchanger 3 and indoor heat exchanger 15 respectively, described outdoor heat exchanger 3 is connected flash vessel 10 by check valve a4 with capillary a5 successively, after described capillary b6 and the branch road parallel connection that capillary c7 and magnetic valve a8 connect, be connected in parallel on check valve a4 and capillary a5 two ends by check valve b9, described flash vessel 10 gaseous states outlet is connected the jet 1-1 of compressor 1 successively with magnetic valve b17 by check valve e16, the liquid state outlet of described flash vessel 10 is connected indoor heat exchanger 15 by check valve c11 with capillary d12, after described capillary e13 and the check valve d14 series connection, be connected in parallel on check valve c11 and capillary d12 two ends.
Compared with prior art, the present invention is by the switching of magnetic valve, can be implemented in to realize under the varying environment temperature that cold-producing medium releases and sprays the capacity regulating that increases enthalpy, improves low-temperature heating high temperature refrigeration, and can regulate high temperature and heat the cryogenic refrigeration capacity.Compared with prior art, the present invention has advantages such as simple in structure, that performance is good.
Description of drawings
Fig. 1 releases and the structural representation that increases the adjustable heat pump type air conditioning system of capacity in enthalpy loop for band cold-producing medium of the present invention.
Among the figure: compressor-1, cross valve-2, outdoor heat exchanger-3, check valve a-4, capillary a-5, capillary b-6, capillary c-7, magnetic valve a-8, check valve b-9, flash vessel-10, check valve c-11, capillary d-12, capillary e-13, check valve d-14, indoor heat exchanger-15, check valve e-16, magnetic valve b-17, magnetic valve c-18, check valve f-19.
The specific embodiment
The present invention is described in detail below in conjunction with the drawings and specific embodiments.
Embodiment 1
As shown in Figure 1, a kind of adjustable heat pump type air conditioning system of capacity that releases and increase the enthalpy loop with cold-producing medium, this system comprises compressor 1, cross valve 2, outdoor heat exchanger 3, check valve a4, capillary a5, capillary b6, capillary c7, magnetic valve a8, check valve b9, flash vessel 10, check valve c11, capillary d12, capillary e13, check valve d14, indoor heat exchanger 15, check valve e16, magnetic valve b17, magnetic valve c18, check valve f19, the jet 1-1 of described compressor 1 is connected the air entry 1-2 of compressor 1 successively with check valve f19 by magnetic valve c18, the exhaust outlet 1-3 of described compressor 1 is connected cross valve 2 respectively with air entry 1-2, described cross valve 2 is junction chamber external heat exchanger 3 and indoor heat exchanger 15 respectively, described outdoor heat exchanger 3 is connected flash vessel 10 by check valve a4 with capillary a5 successively, after described capillary b6 and the branch road parallel connection that capillary c7 and magnetic valve a8 connect, be connected in parallel on check valve a4 and capillary a5 two ends by check valve b9, described flash vessel 10 gaseous states outlet is connected the jet 1-1 of compressor 1 successively with magnetic valve b17 by check valve e16, the liquid state outlet of described flash vessel 10 is connected indoor heat exchanger 15 by check valve c11 with capillary d12, after described capillary e13 and the check valve d14 series connection, be connected in parallel on check valve c11 and capillary d12 two ends.
Above-mentioned band cold-producing medium releases and comprises simultaneously with the adjustable heat pump type air conditioning system of capacity that increases the enthalpy loop that cold-producing medium releases the loop and injection increases the enthalpy loop.Compressor is the compressor with intermediate pressure interface.The air entry of compressor, exhaust outlet link to each other with four-way change-over valve, and outlet links to each other the intermediate pressure interface of compressor with the flash vessel gaseous state with the compressor air suction mouth respectively by two-way in parallel.Be provided with magnetic valve in the pipeline that the compressor air suction mouth links to each other and towards the check valve of compressor air suction mouth, and be provided with magnetic valve in the pipeline that the outlet of flash vessel gaseous state links to each other and towards the check valve of compressor intermediate pressure interface.Indoor heat exchanger links to each other with four-way change-over valve with outdoor heat exchanger one end, the refrigerating capillary loop of the other end by parallel connection with heat capillary tube loop and link to each other with flash vessel.In capillary tube loop, be provided with the check valve and the magnetic valve of different directions.
Release and be provided with magnetic valve and check valve in the loop,, realize releasing the control in loop, release loop flow of refrigerant direction by check valve control by the switching of magnetic valve.
Increase and be provided with magnetic valve and check valve in the enthalpy loop,, realize increasing the control in enthalpy loop, increase enthalpy loop flow of refrigerant direction by check valve control by the switching of magnetic valve.
In the parallel capillary tube loop, be provided with check valve, realize the switching of cooling and warming capillary tube loop.
Be provided with the two-way parallel capillary tube in the capillary tube loop near heating of outdoor heat exchanger behind flash vessel, wherein string has magnetic valve in one the tunnel, by the switching of magnetic valve, realizes that normal temperature and ultralow temperature heat the control of capillary tube loop.
By closing of different magnetic valves, can be achieved as follows several mode of operations:
A. refrigeration mode: under Normal Environmental Temperature; magnetic valve b17, magnetic valve c18 close, and the cold-producing medium circulation is---four-way change-over valve 2---outdoor heat exchanger 3---check valve a4---capillary a5---flash vessel 10---check valve c11---capillary d12---indoor heat exchanger 15---four-way change-over valve 2---the compressor air suction mouth 1-2 from exhaust outlet of compressor 1-3.
B. heating mode: under Normal Environmental Temperature; magnetic valve b17, magnetic valve c18 close; magnetic valve a8 opens, and the cold-producing medium circulation is---four-way change-over valve 2---indoor heat exchanger 15---check valve d14---capillary e13---flash vessel 10---check valve b9---capillary b6, capillary c7 and magnetic valve a8---outdoor heat exchanger 3---four-way change-over valve 2---the compressor air suction mouth 1-2 from exhaust outlet of compressor 1-3.
C. refrigeration is released pattern: under low ambient temperature, magnetic valve b17 closes, magnetic valve c18 opens, and the cold-producing medium circulation is---four-way change-over valve 2---outdoor heat exchanger 3---check valve a4---capillary a5---flash vessel 10---check valve c11---capillary d12---indoor heat exchanger 15---four-way change-over valve 2---the compressor air suction mouth 1-2 from exhaust outlet of compressor 1-3.The compresser cylinder inner refrigerant is by intermediate pressure interface 1-1---magnetic valve c18---check valve f19---compressor air suction mouth 1-2 simultaneously.Realize releasing of part cold-producing medium.
D. heat and release pattern: under high ambient temperature, magnetic valve b17 closes, magnetic valve a8, magnetic valve c18 open, and cold-producing medium circulation is for from exhaust outlet of compressor 1-3---four-way change-over valve 2---indoor heat exchanger 15 check valve d14---capillary e13---flash vessel 10---check valve b9---capillary b6,7 and magnetic valve a8---outdoor heat exchanger 3---four-way change-over valve 2---compressor air suction mouth 1-2.The compresser cylinder inner refrigerant is by intermediate pressure interface 1-1 simultaneously, and---magnetic valve c18---check valve f19---compressor air suction mouth 1-2 realizes releasing of part cold-producing medium.
E. refrigeration increases the enthalpy pattern: under high ambient temperature, magnetic valve b17 opens, magnetic valve c18 closes, and the cold-producing medium circulation is---four-way change-over valve 2---outdoor heat exchanger 3---check valve a4 capillary a5---flash vessel 10---check valve c11---capillary d12---indoor heat exchanger 15---four-way change-over valve 2---the compressor air suction mouth 1-2 from exhaust outlet of compressor 1-3.---check valve e16---magnetic valve b17---compressor intermediate pressure interface 1-1 realizes that the part injection of refrigerant increases enthalpy to gas refrigerant in the flash vessel 10 simultaneously.
F. heat and increase the enthalpy pattern: under low ambient temperature, magnetic valve b17 opens, magnetic valve a8, magnetic valve c18 close, and the cold-producing medium circulation is---four-way change-over valve 2---indoor heat exchanger 15---check valve d14---capillary e13---flash vessel 10---check valve b9---capillary b6---outdoor heat exchanger 3---four-way change-over valve 2---the compressor air suction mouth 1-2 from exhaust outlet of compressor 1-3.---check valve e16---magnetic valve b17---compressor intermediate pressure interface 1-1 realizes that the part injection of refrigerant increases enthalpy to gas refrigerant in the flash vessel 10 simultaneously.
Release under the pattern, the part cold-producing medium releases the compressor air suction mouth by compressor intermediate pressure interface in the compresser cylinder, has reduced circulating mass of refrigerant in the air-conditioning system, reaches the purpose that reduces capacity.
Increase under the enthalpy pattern, refrigerant gas enters the compressor compresses chamber by the intermediate pressure interface in the flash vessel, enters heat exchanger after the compression, has improved circulating mass of refrigerant in compressor and the heat exchanger, reduce the mass dryness fraction behind the capillary-compensated simultaneously, reached the purpose of increase capacity.
Advantage of the invention process is: under refrigerating state, when if outdoor environment temperature is low, release the part cold-producing medium by magnetic valve 18 from compressor intermediate pressure interface 1-1, reduce energy consumption, when if outdoor environment temperature is higher, spray from 10 pairs of compressor intermediate pressures of flash vessel interface 1-1 by magnetic valve 17 and to increase enthalpy, improve refrigeration; Under the state of heating, when if outdoor environment temperature is higher, release the part cold-producing medium by magnetic valve 18 from compressor intermediate pressure interface 1-1, reduce energy consumption, when if outdoor environment temperature is low, spray from 10 pairs of compressor intermediate pressures of flash vessel interface 1-1 by magnetic valve 17 and to increase enthalpy, improve heating effect.
Claims (1)
1. one kind releases with cold-producing medium and increases the adjustable heat pump type air conditioning system of capacity in enthalpy loop, it is characterized in that, this system comprises compressor (1), cross valve (2), outdoor heat exchanger (3), check valve a (4), capillary a (5), capillary b (6), capillary c (7), magnetic valve a (8), check valve b (9), flash vessel (10), check valve c (11), capillary d (12), capillary e (13), check valve d (14), indoor heat exchanger (15), check valve e (16), magnetic valve b (17), magnetic valve c (18), check valve f (19), the jet (1-1) of described compressor (1) is connected the air entry (1-2) of compressor (1) successively with check valve f (19) by magnetic valve c (18), the exhaust outlet (1-3) of described compressor (1) is connected cross valve (2) respectively with air entry (1-2), described cross valve (2) is junction chamber external heat exchanger (3) and indoor heat exchanger (15) respectively, described outdoor heat exchanger (3) is connected flash vessel (10) by check valve a (4) with capillary a (5) successively, after described capillary b (6) and the branch road parallel connection that capillary c (7) and magnetic valve a (8) connect, be connected in parallel on check valve a (4) and capillary a (5) two ends by check valve b (9), the outlet of described flash vessel (10) gaseous state is connected the jet (1-1) of compressor (1) successively with magnetic valve b (17) by check valve e (16), the liquid state outlet of described flash vessel (10) is connected indoor heat exchanger (15) by check valve c (11) with capillary d (12), after described capillary e (13) and check valve d (14) series connection, be connected in parallel on check valve c (11) and capillary d (12) two ends.
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| CN2010101007283A CN102135341A (en) | 2010-01-25 | 2010-01-25 | Capacity-adjustable heat pump air-conditioning system with refrigerant release and enthalpy-adding loops |
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| CN2010101007283A CN102135341A (en) | 2010-01-25 | 2010-01-25 | Capacity-adjustable heat pump air-conditioning system with refrigerant release and enthalpy-adding loops |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445017A (en) * | 2011-09-16 | 2012-05-09 | 西安君生实业有限公司 | Air-water cooling and water-cooling hot water air conditioner main unit |
| CN103673424A (en) * | 2012-09-17 | 2014-03-26 | 珠海格力电器股份有限公司 | Refrigerating system and air conditioning system with same |
| CN103968460A (en) * | 2014-05-16 | 2014-08-06 | 珠海格力电器股份有限公司 | Air conditioning system |
| WO2014177059A1 (en) * | 2013-05-03 | 2014-11-06 | 珠海格力电器股份有限公司 | Dual-stage enthalpy-increasing air-conditioning system |
| CN105698307A (en) * | 2014-11-28 | 2016-06-22 | 青岛海尔空调器有限总公司 | Switchable-operation air-supplying enthalpy-increasing air-conditioning system and switching method |
| CN106016834A (en) * | 2016-07-12 | 2016-10-12 | 广州瑞姆节能设备有限公司 | Small-size user air source low-temperature heat pump |
| CN106352612A (en) * | 2016-09-19 | 2017-01-25 | 广州春光新能源科技发展有限公司 | Solar-air-energy refrigerating/heating air conditioning unit applicable to ultralow temperature |
| CN106595142A (en) * | 2017-02-06 | 2017-04-26 | 刘勇 | Expansion device and CO2 heat pump provided with enhanced vapor injection circuit and used in arctic weather |
| CN106766293A (en) * | 2016-12-02 | 2017-05-31 | 珠海格力电器股份有限公司 | Air-supplementing enthalpy-increasing air conditioning system capable of preventing refrigerant from flowing back and control method thereof |
| CN107975959A (en) * | 2017-11-08 | 2018-05-01 | 宁波奥克斯电气股份有限公司 | A kind of multi-online air-conditioning system and control method |
| CN109386983A (en) * | 2018-10-22 | 2019-02-26 | 广东美的暖通设备有限公司 | Two pipes system air injection enthalpy-increasing outdoor unit and multi-line system |
| CN111442583A (en) * | 2020-03-31 | 2020-07-24 | 科希曼电器有限公司 | Parallel pipeline defrosting control method of air source heat pump system |
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2010
- 2010-01-25 CN CN2010101007283A patent/CN102135341A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102445017A (en) * | 2011-09-16 | 2012-05-09 | 西安君生实业有限公司 | Air-water cooling and water-cooling hot water air conditioner main unit |
| CN103673424A (en) * | 2012-09-17 | 2014-03-26 | 珠海格力电器股份有限公司 | Refrigerating system and air conditioning system with same |
| US9803894B2 (en) | 2013-05-03 | 2017-10-31 | Gree Electric Appliances, Inc. Of Zhuhai | Dual-stage enthalpy-increasing air-conditioning system |
| WO2014177059A1 (en) * | 2013-05-03 | 2014-11-06 | 珠海格力电器股份有限公司 | Dual-stage enthalpy-increasing air-conditioning system |
| CN103968460A (en) * | 2014-05-16 | 2014-08-06 | 珠海格力电器股份有限公司 | Air conditioning system |
| CN105698307A (en) * | 2014-11-28 | 2016-06-22 | 青岛海尔空调器有限总公司 | Switchable-operation air-supplying enthalpy-increasing air-conditioning system and switching method |
| CN105698307B (en) * | 2014-11-28 | 2018-08-31 | 青岛海尔空调器有限总公司 | The changeable operation air-conditioning system with enthalpy increased through vapor injection of one kind and switching method |
| CN106016834A (en) * | 2016-07-12 | 2016-10-12 | 广州瑞姆节能设备有限公司 | Small-size user air source low-temperature heat pump |
| CN106352612A (en) * | 2016-09-19 | 2017-01-25 | 广州春光新能源科技发展有限公司 | Solar-air-energy refrigerating/heating air conditioning unit applicable to ultralow temperature |
| CN106766293A (en) * | 2016-12-02 | 2017-05-31 | 珠海格力电器股份有限公司 | Air-supplementing enthalpy-increasing air conditioning system capable of preventing refrigerant from flowing back and control method thereof |
| CN106595142A (en) * | 2017-02-06 | 2017-04-26 | 刘勇 | Expansion device and CO2 heat pump provided with enhanced vapor injection circuit and used in arctic weather |
| CN106595142B (en) * | 2017-02-06 | 2022-07-15 | 刘勇 | Carbon dioxide heat pump with enhanced vapor injection loop for extremely cold weather |
| CN107975959A (en) * | 2017-11-08 | 2018-05-01 | 宁波奥克斯电气股份有限公司 | A kind of multi-online air-conditioning system and control method |
| CN107975959B (en) * | 2017-11-08 | 2023-09-22 | 宁波奥克斯电气股份有限公司 | Multi-split air conditioning system and control method |
| CN109386983A (en) * | 2018-10-22 | 2019-02-26 | 广东美的暖通设备有限公司 | Two pipes system air injection enthalpy-increasing outdoor unit and multi-line system |
| WO2020082739A1 (en) * | 2018-10-22 | 2020-04-30 | 合肥美的暖通设备有限公司 | Two-pipe system gas-injection enthalpy-increasing outdoor unit and multi-split system |
| CN109386983B (en) * | 2018-10-22 | 2020-07-28 | 广东美的暖通设备有限公司 | Two-pipe jet enthalpy-increasing outdoor unit and multi-split system |
| CN111442583A (en) * | 2020-03-31 | 2020-07-24 | 科希曼电器有限公司 | Parallel pipeline defrosting control method of air source heat pump system |
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Application publication date: 20110727 |