EP3792569A1 - Wärmepumpeneinheit - Google Patents

Wärmepumpeneinheit Download PDF

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Publication number
EP3792569A1
EP3792569A1 EP19799532.7A EP19799532A EP3792569A1 EP 3792569 A1 EP3792569 A1 EP 3792569A1 EP 19799532 A EP19799532 A EP 19799532A EP 3792569 A1 EP3792569 A1 EP 3792569A1
Authority
EP
European Patent Office
Prior art keywords
liquid
gas
pump unit
heat pump
housing
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
EP19799532.7A
Other languages
English (en)
French (fr)
Other versions
EP3792569A4 (de
Inventor
Lei Zhao
Hui Sun
Yu LENG
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.)
Haier Smart Home Co Ltd
Qingdao Haier Central Air Conditioner Co Ltd
Original Assignee
Haier Smart Home Co Ltd
Qingdao Haier Central Air Conditioner Co Ltd
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 Haier Smart Home Co Ltd, Qingdao Haier Central Air Conditioner Co Ltd filed Critical Haier Smart Home Co Ltd
Publication of EP3792569A1 publication Critical patent/EP3792569A1/de
Publication of EP3792569A4 publication Critical patent/EP3792569A4/de
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
    • F25B30/00Heat pumps
    • 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
    • F25B43/00Arrangements for separating or purifying gases or liquids; Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat
    • F25B43/006Accumulators
    • 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
    • F25B13/00Compression machines, plants or systems, with reversible cycle
    • 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
    • F25B2400/05Compression system with heat exchange between particular parts of the system
    • F25B2400/051Compression system with heat exchange between particular parts of the system between the accumulator and another part of the cycle
    • 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
    • F25B2400/05Compression system with heat exchange between particular parts of the system
    • F25B2400/053Compression system with heat exchange between particular parts of the system between the storage receiver and another part of the 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
    • F25B2500/00Problems to be solved
    • F25B2500/09Improving heat transfers

Definitions

  • the present disclosure belongs to the technical field of heat exchange, and specifically provides a heat pump unit.
  • the heat pump unit includes a circulation loop formed by a plurality of devices, and a heat exchange medium continuously travels in the circulation loop to achieve a heat exchange effect through heat exchange.
  • existing heat pump units are usually equipped with a liquid storage device and a gas-liquid separation device; wherein the liquid storage device is configured to store a high-temperature and high-pressure liquid heat exchange medium in the circulation loop that has not yet participated in the circulation, whereas the gas-liquid separation device is configured to separate a low-temperature and low-pressure gaseous heat exchange medium and deliver it to a compression device.
  • the liquid storage device and the gas-liquid separation device of all the existing heat pump units are arranged separately, and the independent arrangements of the liquid storage device and the gas-liquid separation device cannot make full use of the heat stored by the heat exchange medium in the liquid storage device and the cold stored by the heat exchange medium in the gas-liquid separation device. Further, if the supercooling degree of the liquid heat exchange medium in the liquid storage device is increased, and at the same time the superheating degree of the gaseous heat exchange medium in the gas-liquid separation device is increased, then the heat exchange efficiency of the unit will necessarily be improved effectively.
  • the present disclosure provides a heat pump unit which includes a liquid storage device and a gas-liquid separation device, the liquid storage device being at least partially accommodated in the gas-liquid separation device to enable heat exchange between the liquid storage device and the gas-liquid separation device.
  • the liquid storage device includes a liquid storage member, and a first housing arranged in the gas-liquid separation device, and the first housing has a first sealed cavity for storing a heat exchange medium, the liquid storage member being in communication with the first sealed cavity.
  • the liquid storage member includes a first liquid delivery pipe and a second liquid delivery pipe, and the heat exchange medium stored in the first sealed cavity can be delivered through the first liquid delivery pipe and the second liquid delivery pipe.
  • one of the first liquid delivery pipe and the second liquid delivery pipe is connected with an evaporation device of the heat pump unit, and the other of the first liquid delivery pipe and the second liquid delivery pipe is connected with a condensation device of the heat pump unit.
  • the gas-liquid separation device includes a gas-liquid separation member, and a second housing sleeved over the first housing, the second housing has a second sealed cavity, and the gas-liquid separation member is in communication with the second sealed cavity.
  • the gas-liquid separation member includes a gas-liquid mixed input pipe and a gas output pipe, and the gas-liquid mixed input pipe and the gas output pipe are in communication with the second sealed cavity respectively.
  • the gas-liquid mixed input pipe is connected with a four-way valve of the heat pump unit, and the gas output pipe is connected with a compression device of the heat pump unit.
  • the gas-liquid separation member further includes a liquid output pipe, and the liquid output pipe is connected with a bottom of the second housing.
  • the heat pump unit further includes a thermal insulation member, and the thermal insulation member is wrapped around an outside of the second housing.
  • the gas output pipe is a U-shaped pipe that penetrates into the second sealed cavity from a top of the second housing, and an open end of the U-shaped pipe is located near an inner top of the second housing; the gas-liquid mixed input pipe also penetrates into the second sealed cavity from the top of the second housing, and an open end of the gas-liquid mixed input pipe is also located near the inner top of the second housing.
  • the heat pump unit of the present disclosure includes a liquid storage device and a gas-liquid separation device, and the liquid storage device is at least partially accommodated in the gas-liquid separation device to enable heat exchange between the liquid storage device and the gas-liquid separation device; since the liquid storage device stores a high-temperature and high-pressure liquid heat exchange medium, and the gas-liquid separation device stores a low-temperature and low-pressure gaseous heat exchange medium, partially accommodating the liquid storage device in the gas-liquid separation device can facilitate the heat exchange of the heat exchange media, so that the heat exchange medium in the liquid storage device can obtain more cold to increase the supercooling degree of the liquid heat exchange medium, and the heat exchange medium in the gas-liquid separation device can obtain more heat to increase the superheating degree of the gaseous heat exchange medium, thereby effectively improving the heat exchange efficiency of the heat pump unit.
  • connection may be a fixed connection, or may also be a detachable connection, or an integral connection; it may be a direct connection, or an indirect connection implemented through an intermediate medium, or it may be an internal communication between two elements.
  • connection may be a fixed connection, or may also be a detachable connection, or an integral connection; it may be a direct connection, or an indirect connection implemented through an intermediate medium, or it may be an internal communication between two elements.
  • connection may be a fixed connection, or may also be a detachable connection, or an integral connection; it may be a direct connection, or an indirect connection implemented through an intermediate medium, or it may be an internal communication between two elements.
  • liquid storage device and the gas-liquid separation device of the existing heat pump units mentioned in the "BACKGROUND OF THE INVENTION" are all arranged separately, and the independent arrangements of the liquid storage device and the gas-liquid separation device cannot make full use of the heat stored by the heat exchange medium in the liquid storage device and the cold stored by the heat exchange medium in the gas-liquid separation device.
  • the present disclosure provides a heat pump unit, which includes a liquid storage device and a gas-liquid separation device, and the liquid storage device is at least partially accommodated in the gas-liquid separation device to enable heat exchange between the liquid storage device and the gas-liquid separation device; since the liquid storage device stores a high-temperature and high-pressure liquid heat exchange medium, and the gas-liquid separation device stores a low-temperature and low-pressure gaseous heat exchange medium, integrally arranging the two devices enables the heat exchange of the heat exchange media, so that the heat exchange medium in the liquid storage device can obtain more cold to increase the supercooling degree of the liquid heat exchange medium, and the heat exchange medium in the gas-liquid separation device can obtain more heat to increase the superheating degree of the gaseous heat exchange medium, thereby effectively improving the heat exchange efficiency of the heat pump unit.
  • FIG. 1 is a schematic view of an overall structure of a heat pump unit of the present disclosure
  • FIG. 2 is a schematic structural view of a liquid storage device and a gas-liquid separation device of the present disclosure.
  • the heat pump unit includes a liquid storage device 11 and a gas-liquid separation device 12.
  • the liquid storage device 11 is accommodated in the gas-liquid separation device 12 so that the liquid storage device 11 can exchange heat with the gas-liquid separator 12.
  • the liquid storage device 11 and the gas-liquid separation device 12 of all the existing heat pump units are arranged independently, and the two devices are respectively arranged at different positions of the heat pump unit; therefore, due to such independent arrangements, the heat exchange between the heat exchange medium in the liquid storage device 11 and the heat exchange medium in the gas-liquid separation device 12 can be realized only through a circulation system of the heat pump unit.
  • the present disclosure enables the heat exchange medium in the liquid storage device 11 and the heat exchange medium in the gas-liquid separation device 12 to exchange heat with each other, and then participate in the circulation of the heat pump unit.
  • the liquid storage device 11 in this preferred embodiment is completely accommodated in the gas-liquid separation device 12, it is obvious that those skilled in the art may also only partially accommodate the liquid storage device 11 in the gas-liquid separation device 12.
  • the liquid storage device 11 stores a high-temperature and high-pressure liquid heat exchange medium which has a low supercooling degree and is easy to evaporate during the delivery process to cause a decrease in the heat exchange capacity thereof
  • the gas-liquid separation device 12 stores a low-temperature and low-pressure gaseous heat exchange medium which has a low superheating degree and is easy to liquefy during the delivery process to cause liquid carryover of the compressor.
  • the liquid heat exchange medium stored in the liquid storage device 11 needs more cold to increase its own supercooling degree, while the gaseous heat exchange medium stored in the gas-liquid separation device 12 needs more heat to increase its own superheating degree.
  • the independent arrangements of the liquid storage device 11 and the gas-liquid separation device 12 in the existing heat pump units not only waste the excess heat in the liquid storage device 11 and the excess cold in the gas-liquid separation device 12, but also affect the heat exchange capacity of the heat pump unit.
  • the present disclosure enables the heat exchange media stored in the two devices to exchange heat so that the heat exchange medium in the liquid storage device 11 can obtain more cold through the gas-liquid separation device 12 to increase the supercooling degree of the liquid heat exchange medium, and the heat exchange medium in the gas-liquid separation device 12 can also obtain more heat through the liquid storage device 11 to increase the superheating degree of the gaseous heat exchange medium. Therefore, at the same time of effectively preventing the compressor from being subjected to the problem of liquid carryover, the present disclosure can also effectively improve the heat exchange efficiency of the heat pump unit.
  • the liquid storage device 11 includes a first housing 111 having a first sealed cavity 1110, as well as a first liquid delivery pipe 112 and a second liquid delivery pipe 113 that are in communication with the first sealed cavity 1110; wherein the first sealed cavity 1110 is configured to store the heat exchange medium, and the first housing 111 is arranged in the gas-liquid separation device 12 so that the heat exchange medium stored in the first sealed cavity 1110 can directly exchange heat with the heat exchange medium stored in the gas-liquid separation device 12 through the first housing 111. Further, the heat exchange medium stored in the first sealed cavity 1110 can be delivered through the first liquid delivery pipe 112 and the second liquid delivery pipe 113 so as to participate in the circulation of the heat pump unit.
  • the high-temperature and high-pressure liquid heat exchange medium is stored in the first sealed cavity 1110
  • the low-temperature and low-pressure gaseous heat exchange medium is stored in the gas-liquid separation device 12
  • the first housing 111 is arranged in the gas-liquid separation device 12, so that the high-temperature and high-pressure liquid heat exchange medium stored in the first sealed cavity 1110 can obtain cold from the low-temperature and low-pressure gaseous heat exchange medium stored in the gas-liquid separation device 12 through the first housing 111, thereby effectively increasing the supercooling degree of the liquid heat exchange medium stored in the liquid storage device 11, and further effectively ensuring the heat exchange efficiency of the heat exchange media.
  • the liquid storage device 11 described in this preferred embodiment consists of the first housing 111 and a liquid storage member, and the liquid storage member only includes the first liquid delivery pipe 112 and the second liquid delivery pipe 113, it is obvious that the liquid storage device 11 may also include other structures, or even only consist of other structures. Since there are already many types of liquid storage devices in the prior art, a detailed description will not be given herein. That is, it would be sufficient if the liquid storage device 11 is able to store the heat exchange medium and exchange heat with the gas-liquid separation device 12. At the same time, the present disclosure does not impose any restriction on the shape of the first sealed cavity 1110, as long as the first sealed cavity 1110 can store the heat exchange medium.
  • the gas-liquid separation device 12 includes a second housing 121 sleeved over the first housing 111.
  • a second sealed cavity 1210 is formed between the first housing 111 and the second housing 121, and the process of gas-liquid separation is performed in the second sealed cavity 1210.
  • the gas-liquid separation device 12 also includes a gas-liquid mixed input pipe 122 and a gas output pipe 123, wherein the gas-liquid mixed input pipe 122 and the gas output pipe 123 are respectively connected with the second sealed cavity 1210.
  • the gas-liquid mixed input pipe 122 penetrates into the second sealed cavity 1210 from a top of the second housing 121, and an open end of the gas-liquid mixed input pipe 122 is located near an inner top of the second housing 121, so as to effectively prevent the liquid heat exchange medium from immersing an outlet of the gas-liquid mixed input pipe 122 to affect the delivery of the gaseous heat exchange medium;
  • the gas output pipe 123 is a U-shaped pipe that penetrates into the second sealed cavity 1210 from the top of the second housing 121, and an open end of the U-shaped pipe is also located near the inner top of the second housing 121, so as to effectively avoid the escape of the liquid heat exchange medium while outputting the gaseous heat exchange medium.
  • the heat exchange medium in a gas-liquid mixed state is input into the second sealed cavity 1210 through the gas-liquid mixed input pipe 122, and a gas-liquid separation process is performed in the second sealed cavity 1210, so that the gaseous heat exchange medium can be output through the gas output pipe 123, thereby participating in the circulation of the heat pump unit.
  • the low-temperature and low-pressure gaseous heat exchange medium is stored in the second sealed cavity 1210
  • the high-temperature and high-pressure liquid heat exchange medium is stored in the first sealed cavity 1110
  • the second housing 121 is sleeved over the first housing 111 to form the second sealed cavity 1210, so that the low-temperature and low-pressure gaseous heat exchange medium stored in the second sealed cavity 1210 can obtain heat from the high-temperature and high-pressure liquid heat exchange medium stored in the liquid storage device 11 through the first housing 111, thereby effectively increasing the superheating degree of the gaseous heat exchange medium stored in the gas-liquid separation device 12, and further effectively ensuring the heat exchange efficiency of the heat exchange media at the same time of effectively preventing the compressor from being subjected to the problem of liquid carryover.
  • the gas-liquid separation device 12 further includes a liquid output pipe 124 connected with a bottom of the second housing 121 so that the liquid heat exchange medium collected at a bottom of the second sealed cavity 1210 can flow out through the liquid output pipe 124.
  • the liquid output pipe 124 in this preferred embodiment is arranged at the bottom of the second housing 121, it is obvious that the liquid output pipe 124 may also be arranged at the bottom of the side of the second housing 121 as long as the liquid heat exchange medium can be output through the liquid output pipe 124.
  • the gas-liquid separation device 12 in this preferred embodiment further includes the liquid output pipe 124, it is obvious that those skilled in the art may not provide the liquid output pipe 124; instead, the liquid heat exchange medium in the second sealed cavity 1210 evaporates into a gaseous heat exchange medium, which is then output through the gas output pipe 123.
  • the gas-liquid separation device 12 described in this preferred embodiment consists of the second housing 121 and a gas-liquid separation member, and the gas-liquid separation member only includes the gas-liquid mixed input pipe 122, the gas output pipe 123 and the liquid output pipe 124, it is obvious that the gas-liquid separation device 12 may also include other structures, or even only consist of other structures. Since there are already many types of gas-liquid separation devices in the prior art, a detailed description will not be given herein. That is, it would be sufficient if the gas-liquid separation device 12 can implement the gas-liquid separation process and exchange heat with the liquid storage device 11.
  • the second sealed cavity 1210 in this preferred embodiment is formed by the first housing 111 and the second housing 121 altogether, it is obvious that the second sealed cavity 1210 may also be independently formed by the second housing 121 alone, as long as the heat exchange medium stored in the first sealed cavity 1110 can exchange heat with the heat exchange medium stored in the second sealed cavity 1210.
  • the present disclosure does not impose any restriction on the shape of the second sealed cavity 1210, as long as the second sealed cavity 1210 can implement the gas-liquid separation process.
  • the heat pump unit further includes a thermal insulation member (not shown in the drawings), and the thermal insulation member is wrapped around an outside of the second housing 121 to minimize energy loss, so that the liquid storage device 11 and the gas-liquid separation device 12 can exchange heat sufficiently, thereby effectively improving the heat exchange efficiency of the heat pump unit.
  • a thermal insulation member (not shown in the drawings)
  • the thermal insulation member is wrapped around an outside of the second housing 121 to minimize energy loss, so that the liquid storage device 11 and the gas-liquid separation device 12 can exchange heat sufficiently, thereby effectively improving the heat exchange efficiency of the heat pump unit.
  • the thermal insulation member is made of a material with good thermal insulation performance, such as rock wool and glass wool.
  • the first liquid delivery pipe 112 of the liquid storage device 11 is connected with a dry evaporator 15, and the second liquid delivery pipe 113 of the liquid storage device 11 exchanges heat with a fin-type heat exchanger 16.
  • the gas-liquid mixed input pipe 122 of the gas-liquid separation device 12 is connected with a four-way valve 14, and the gas output pipe 123 of the gas-liquid separation device 12 is connected with a compressor 13.
  • the high-temperature and high-pressure gaseous heat exchange medium flowing out of the compressor 13 flows into the fin-type heat exchanger 16 through the four-way valve 14 to release heat and liquefy into a liquid heat exchange medium;
  • the high-temperature and high-pressure liquid heat exchange medium flows from the fin-type heat exchanger 16 into an electronic expansion valve, and then flows into the first sealed cavity 1110 through the second liquid delivery pipe 113;
  • part of the high-temperature and high-pressure liquid heat exchange medium flows into the dry evaporator 15 through the first liquid delivery pipe 112 to evaporate and absorb heat to achieve a cooling effect; at this time, part of the liquid heat exchange medium evaporates into a gaseous heat exchange medium;
  • the heat exchange medium in a gas-liquid mixed state flows into the four-way valve 14 and flows toward the gas-liquid mixed input pipe 122, and enters the second sealed cavity 1210 through the gas-liquid mixed input pipe 122 for gas-liquid separation; finally, the gaseous heat

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Power Engineering (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
EP19799532.7A 2018-05-10 2019-04-23 Wärmepumpeneinheit Pending EP3792569A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810441638.7A CN108534392A (zh) 2018-05-10 2018-05-10 热泵机组
PCT/CN2019/083795 WO2019214425A1 (zh) 2018-05-10 2019-04-23 热泵机组

Publications (2)

Publication Number Publication Date
EP3792569A1 true EP3792569A1 (de) 2021-03-17
EP3792569A4 EP3792569A4 (de) 2021-07-28

Family

ID=63476824

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19799532.7A Pending EP3792569A4 (de) 2018-05-10 2019-04-23 Wärmepumpeneinheit

Country Status (3)

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EP (1) EP3792569A4 (de)
CN (1) CN108534392A (de)
WO (1) WO2019214425A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108534392A (zh) * 2018-05-10 2018-09-14 青岛海尔中央空调有限公司 热泵机组
CN109869941B (zh) * 2018-12-17 2020-03-10 珠海格力电器股份有限公司 热泵系统、吸气过热度及气液分离器积液蒸发控制方法
CN115265234B (zh) * 2022-06-24 2023-05-16 广州五所环境仪器有限公司 环境测试设备及换热装置

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201100798Y (zh) * 2007-11-08 2008-08-13 无锡同方人工环境有限公司 双向过冷储液器
CN202562149U (zh) * 2012-04-12 2012-11-28 广州金抡电器有限公司 一种过冷过热型分离器
CN202853219U (zh) * 2012-09-27 2013-04-03 邵武市九亮工贸有限公司 一种立式工质气液分离器
GB2517993B (en) * 2013-09-09 2020-01-01 Jung Shen Liao Refrigerating machine having tube-cooled evaporator & air-cooled evaporator
CN203771831U (zh) * 2014-03-21 2014-08-13 广东美的暖通设备有限公司 空调室外机及其多功能储液装置
CN104374126A (zh) * 2014-11-27 2015-02-25 浙江新昌三瑞香雪冲业有限公司 一种新型气液分离器
CN204648772U (zh) * 2015-03-03 2015-09-16 湖南凯利制冷设备有限公司 一种制冷系统新型多用途换热装置
CN205980446U (zh) * 2016-08-11 2017-02-22 新昌县行峰制冷配件厂 一种具有贮液、节能、积液功能的热交换器
CN107270595B (zh) * 2017-06-01 2019-11-15 嵊州盈益机械有限公司 一种空调系统用分液器及其制造方法
CN208419268U (zh) * 2018-05-10 2019-01-22 青岛海尔中央空调有限公司 热泵机组
CN108534392A (zh) * 2018-05-10 2018-09-14 青岛海尔中央空调有限公司 热泵机组

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Publication number Publication date
CN108534392A (zh) 2018-09-14
EP3792569A4 (de) 2021-07-28
WO2019214425A1 (zh) 2019-11-14

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