WO2012000323A1 - 一种同时制冷和制热的一拖多空调 - Google Patents

一种同时制冷和制热的一拖多空调 Download PDF

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Publication number
WO2012000323A1
WO2012000323A1 PCT/CN2011/071673 CN2011071673W WO2012000323A1 WO 2012000323 A1 WO2012000323 A1 WO 2012000323A1 CN 2011071673 W CN2011071673 W CN 2011071673W WO 2012000323 A1 WO2012000323 A1 WO 2012000323A1
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WO
WIPO (PCT)
Prior art keywords
valve
indoor heat
way valve
heat exchanger
heating
Prior art date
Application number
PCT/CN2011/071673
Other languages
English (en)
French (fr)
Inventor
金听祥
李改莲
郑祖义
Original Assignee
广东志高空调有限公司
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 广东志高空调有限公司 filed Critical 广东志高空调有限公司
Priority to EP11800068.6A priority Critical patent/EP2589889A4/en
Priority to US13/807,429 priority patent/US20130213077A1/en
Publication of WO2012000323A1 publication Critical patent/WO2012000323A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B30/00—Heat pumps
    • F25B30/02—Heat pumps of the compression type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/06—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units
    • F24F3/065—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the arrangements for the supply of heat-exchange fluid for the subsequent treatment of primary air in the room units with a plurality of evaporators or condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/54—Heating and cooling, simultaneously or alternatively
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/023—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units
    • F25B2313/0231—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units with simultaneous cooling and heating

Definitions

  • the invention relates to the field of air conditioning equipment, and in particular to a one-to-many air-conditioning of simultaneous cooling and heating.
  • Air conditioners that is, air conditioners, air conditioners are used for space areas.
  • the compressor compresses the gaseous refrigerant into a high temperature and high pressure liquid refrigerant, and then sends it to the condenser (outdoor unit) to become a normal temperature and high pressure liquid refrigerant, so the outdoor unit blows out the hot air;
  • the condenser outdoor unit
  • the outdoor unit blows out the hot air
  • there is heat there is a component called a four-way valve, so that the flow direction of the refrigerant in the condenser and the evaporator is opposite to that in the case of cooling, so when the heating is performed, the outdoor air is blown by the cold air, and the indoor unit is blown by the hot air.
  • One-to-many air conditioner refers to an air conditioner in which a plurality of indoor units share an outdoor unit.
  • the traditional one-to-many air conditioner can only supply cooling or heating separately at the same time.
  • air conditioning and refrigeration are required in winter, so it is necessary to develop cooling and heating in different office areas.
  • One more air conditioner. SUMMARY OF THE INVENTION
  • the technical problem to be solved by the present invention is to provide a one-to-many air conditioner that simultaneously cools and heats, and can realize single cooling, separate heating, cooling, heating, cooling, and heating. At the same time, take into account five modes.
  • the present invention provides a simultaneous cooling and heating
  • the adjustment includes a compressor, an oil and gas separator, a four-way valve, an outdoor heat exchanger, at least two indoor heat exchange mechanisms, a gas-liquid separator, wherein: the oil separator is connected to the compressor with a return pipe
  • the indoor heat exchange mechanism includes an indoor heat exchanger and a first electronic expansion valve, wherein the indoor heat exchanger and the first electronic expansion valve are connected in series; and the indoor heat exchange mechanism is connected in parallel to form an indoor heat exchange system;
  • the compressor, the oil and gas separator, the four-way valve, the indoor heat exchange system, the outdoor heat exchanger, the four-way valve, and the gas-liquid separator are sequentially connected to form a heating circuit along a refrigerant flow direction, and the four-way valve and the
  • the connecting pipes between the indoor heat exchangers are respectively provided with a first control valve; the compressor, the oil separator, the four-way valve, the outdoor heat exchanger, the indoor heat exchange system, and the gas-liquid separat
  • the first control valve, the second control valve, and the third control valve are all solenoid valves.
  • the compressor is an inverter compressor.
  • the present invention provides a single-to-multiple air conditioner for simultaneous cooling and heating, which can realize five modes of single cooling, separate heating, cooling, heating, cooling and heating. .
  • FIG. 1 is a schematic structural view of a one-to-many air conditioner that simultaneously cools and heats in a preferred embodiment of the present invention.
  • the invention provides a one-to-many air conditioner for simultaneous cooling and heating, comprising an inverter compressor, an oil separator, a four-way valve, an outdoor heat exchanger, four indoor heat exchange mechanisms, a gas-liquid separator, wherein: the oil separator The oil return line is connected with the inverter compressor; the indoor heat exchange mechanism includes an indoor heat exchanger and a first electronic expansion valve, the indoor heat exchanger and the first electronic expansion valve are connected in series; and the indoor heat exchange mechanism is connected in parallel to form an indoor heat exchange system Inverter compressor, oil separator, four-way valve, indoor heat exchange system, outdoor heat exchanger, four-way valve, gas-liquid separator are sequentially connected along the refrigerant flow direction to form a heating circuit, four-way valve and indoor heat exchange
  • the connecting pipe between the devices is respectively provided with a first electromagnetic valve;
  • the heat circuit, the connecting pipe between the gas-liquid separator and the indoor heat exchanger are respectively provided with a second electromagnetic valve;
  • the connecting pipe of the four-way valve and the indoor heat exchange system is provided with the first a parallel line is provided between the outdoor heat exchanger and the indoor heat exchange system, and the parallel line is a parallel connection between the second electronic expansion valve and the second one-way valve;
  • the series pipeline is provided with a third solenoid valve and a third one-way valve, one end of the series pipeline is connected with the pipeline between the four-way valve and the outdoor heat exchanger, and the other end of the series pipeline is connected with the first one-way The line between the valve and the indoor heat exchange system. Please refer to FIG. 1.
  • FIG. 1 Please refer to FIG. 1.
  • FIG. 1 is a schematic structural view of a multi-air conditioner for simultaneous cooling and heating in a preferred embodiment of the present invention.
  • four indoor heat exchange mechanisms are taken as an example for description.
  • the one-to-many air conditioner for simultaneous cooling and heating provided by the invention can realize five modes of single cooling, separate heating, cooling, heating, cooling and heating, and the specific working principle and process are as follows: : Separate cooling mode: When cooling separately, the third solenoid valve 5, the first solenoid valve 10, the first solenoid valve 14, the first solenoid valve 18 and the first solenoid valve 24 are closed, the second solenoid valve 11, the second solenoid valve 15.
  • the second solenoid valve 19 and the second solenoid valve 25 are opened, the inverter compressor 1 compresses the refrigerant, and the high temperature and high pressure refrigerant gas enters the oil separator 2, and the refrigerant gas enters through the four-way switching valve 3 To the outdoor heat exchanger 7, through the second check valve 9 and the first electronic expansion valve 13, the first electronic expansion valve 17, the first electronic expansion valve 20 and the first electronic expansion valve 23, after the throttle is reduced, the low pressure
  • the refrigerant liquid enters the indoor heat exchanger 12, the indoor heat exchanger 16, the indoor heat exchanger 21 and the indoor heat exchanger 22, respectively, and after passing through the heat absorption, passes through the second electromagnetic valve 11, the second electromagnetic valve 15, and the second a solenoid valve 19 and a second solenoid valve 25, Into the gas-liquid separator 26, back to the inverter compressor 1.
  • Main mode of cooling When cooling is dominant, the number of indoor heat exchangers operating in cooling mode is greater than the number of indoor heat exchangers operating in heating mode.
  • the second solenoid valve 11 (if the second solenoid valve 11, the second solenoid valve 15, the second solenoid valve 19, and the second solenoid valve 25 are closed, the second solenoid valve 10, the second solenoid valve 14, and the second The corresponding one of the solenoid valve 18 and the second solenoid valve 24 should be opened, the second solenoid valve 14, the second solenoid valve 18 and the second solenoid valve 24 are closed, the third solenoid valve 5, the first solenoid valve 10, the first The second solenoid valve 15, the second solenoid valve 19 and the second solenoid valve 25 are opened, the inverter compressor 1 compresses the refrigerant, and the high temperature and high pressure refrigerant gas enters the oil separator 2, and passes through the four-way reversing valve 3, Part of the high temperature and high pressure refrigerant gas passes through the third electromagnetic valve 5, the
  • the electronic first expansion valve 13 merges with another portion of the high temperature and high pressure refrigerant gas cooled by the outdoor heat exchanger 7, and then passes through the electronic first expansion valve 17, the first expansion valve 20, and the first expansion valve 23. , after the throttle is reduced, the low pressure refrigerant liquid The body enters the indoor heat exchanger 16, the indoor heat exchanger 21, and the indoor heat exchanger 22 respectively, and after evaporating and absorbing heat, enters the gas and liquid through the second electromagnetic valve 15, the second electromagnetic valve 19, and the second electromagnetic valve 25. The separator 26 is returned to the inverter compressor 1.
  • the first solenoid valve 10 When heating alone, the first solenoid valve 10, the first solenoid valve 14, the first solenoid valve 18 and the first solenoid valve 24 are opened, the third solenoid valve 5, the second solenoid valve 11, the second electromagnetic The valve 15, the second solenoid valve 19 and the second solenoid valve 25 are closed, the inverter compressor 1 compresses the refrigerant, and the high temperature and high pressure refrigerant gas enters the oil separator 2, through the four-way switching valve 3 and the first single To the valve 4, the high temperature and high pressure refrigerant gas passes through the first electromagnetic valve 10, the first electromagnetic valve 14, the first electromagnetic valve 18 and the first electromagnetic valve 24, respectively enters the indoor heat exchanger 12, the indoor heat exchanger 16, and the indoor The heat exchanger 21 and the indoor heat exchanger 22 radiate heat to the room to achieve heating.
  • the cooled refrigerant liquid passes through the first electronic expansion valve 13, the first electronic expansion valve 17, the first electronic expansion valve 20, the first electronic expansion valve 23, and the second electronic expansion valve 8, and is throttled and depressurized.
  • the refrigerant liquid enters the outdoor heat exchanger 7, and evaporates and absorbs heat, passes through the four-way switching valve 3 and the gas-liquid separator 26, and returns to the inverter compressor 1.
  • Main mode of heating When heating is dominant, the number of indoor heat exchangers operating in heating mode is greater than the number of indoor heat exchangers operating in cooling mode.
  • the second solenoid valve 11 (if one of the second solenoid valve 11, the second solenoid valve 15, the second solenoid valve 19, and the second solenoid valve 25 is opened, the first solenoid valve 10, the first solenoid valve 14, the first The solenoid valve 18, the corresponding one of the first solenoid valves 24 should be closed, the first solenoid valve 14, the first solenoid valve 18 and the first solenoid valve 24 are opened, the third solenoid valve 5, the first solenoid valve 10, the first The second solenoid valve 15, the second solenoid valve 19 and the second solenoid valve 25 are closed, the inverter compressor 1 compresses the refrigerant, and the high temperature and high pressure refrigerant gas enters the oil separator 2, through the four-way reversing valve 3 and a check valve 4, the high temperature and high pressure refrigerant gas passes through the second electromagnetic valve 14, the second electromagnetic valve 18, and the second electromagnetic valve 24, respectively, into the indoor heat exchanger 16, the indoor heat exchanger 21, the indoor heat exchanger 22, Dissipate
  • the cooled refrigerant liquid passes through the first electronic expansion valve 17, the first electronic expansion valve 20, and the first electronic expansion valve 23, and a portion of the refrigerant liquid enters the indoor heat exchanger 12, evaporates and absorbs heat, and passes through the second
  • the solenoid valve 11 enters the gas-liquid separator 26 and returns to the inverter compressor 1.
  • the other portion of the refrigerant liquid passes through the second electronic expansion valve 8, enters the outdoor heat exchanger 7, and evaporates and absorbs heat, passes through the four-way switching valve 3 and the gas-liquid separator 26, and returns to the inverter compressor 1. Cooling and heating at the same time mode: When both cooling and heating are considered, the number of indoor heat exchangers operating in heating mode is equal to the number of indoor heat exchangers operating in cooling mode.
  • the second electromagnetic valve 11 and the second electromagnetic valve 15 (if two of the second electromagnetic valve 11, the second electromagnetic valve 15, the second electromagnetic valve 19, and the second electromagnetic valve 25 are opened, the first electromagnetic valve 10, the first A solenoid valve 14, a first solenoid valve 18, a corresponding one of the first solenoid valves 24 should be closed, a first solenoid valve 18 and a first solenoid valve 24 are opened, a third solenoid valve 5, and a first solenoid valve 10
  • the first solenoid valve 14, the second solenoid valve 19 and the second solenoid valve 25 are closed, the inverter compressor 1 compresses the refrigerant, and the high temperature and high pressure refrigerant gas enters the oil separator 2, and passes through the four-way switching valve 3
  • the check valve 4 the high temperature and high pressure refrigerant gas passes through the second electromagnetic valve 18 and the second electromagnetic valve 24, respectively enters the indoor heat exchanger 21 and the indoor heat exchanger 22, and dissipates heat to the room to achieve the purpose of heating.
  • the cooled refrigerant liquid passes through the first electronic expansion valve 20 and the first electronic expansion valve 23, and enters the indoor heat exchanger 12 and the indoor heat exchanger 16, respectively, and evaporates and absorbs heat, passes through the second electromagnetic valve 11, and The two solenoid valves 15 enter the gas-liquid separator 26 and return to the inverter compressor 1.
  • the present invention provides a single-to-multiple air conditioner for simultaneous cooling and heating, which can realize five modes of single cooling, separate heating, cooling, heating, cooling and heating. .
  • the above is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can also make several improvements and retouchings without departing from the principles of the present invention. It should be considered as the scope of protection of the present invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Compression-Type Refrigeration Machines With Reversible Cycles (AREA)

Description

一种同时制冷和制热的一拖多空调 本申请要求于 2010 年 6 月 29 日提交中国专利局、 申请号为 201010214957.8、 发明名称为"一种同时制冷和制热的一拖多空调"的中国 专利申请的优先权， 其全部内容通过引用结合在本申请中。 技术领域
本发明涉及空调设备领域， 具体是指一种同时制冷和制热的一拖多空 调。
背景技术 空调即空气调节器 (air conditioner), 挂式空调是一种用于给空间区域
(一般为密闭）提供处理空气的机组。 它的功能是对该房间（或封闭空间、 区域） 内空气的温度、 湿度、 洁净度和空气流速等参数进行调节， 以满足 人体舒适或工艺过程的要求。其工作原理为： 压缩机将气态的制冷剂压缩 为高温高压的液态制冷剂， 然后送到冷凝器（室外机）散热后成为常温高 压的液态制冷剂， 所以室外机吹出来的是热风； 制热的时候有一个叫四通 阀的部件， 使制冷剂在冷凝器与蒸发器的流动方向与制冷时相反， 所以制 热的时候室外吹的是冷风， 室内机吹的是热风。 一拖多空调是指多个室内机公用一个室外机的空调。 目前， 传统的一 拖多空调在同一时间只能单独供冷或供热， 但是， 在有些特殊的办公或者 旅馆， 冬季也需要空调制冷， 因此需要开发在不同办公区域能同时制冷和 制热的一拖多空调。 发明内容 针对上述缺陷， 本发明解决的技术问题在于， 提供一种同时制冷和制 热的一拖多空调， 可以实现单独制冷、 单独制热、 制冷为主、 制热为主、 制冷和制热同时兼顾等五种模式。 为了解决以上的技术问题， 本发明提供的同时制冷和制热的一拖多空 调， 包括压缩机、 油气分离器、 四通阀、 室外换热器、 至少二台以上的室 内换热机构、 气液分离器， 其中： 所述油气分离器与所述压缩机连接有回油管路； 所述室内换热机构包括室内换热器和第一电子膨胀阀， 所述室内换热 器和第一电子膨胀阀串联； 所述室内换热机构之间并联组成室内换热***； 所述压缩机、 油气分离器、 四通阀、 室内换热***、 室外换热器、 四 通阀、 气液分离器沿制冷剂流通方向顺序连接组成制热回路， 所述四通阀 与所述室内换热器之间的连接管路分别设置有第一控制阀； 所述压缩机、 油气分离器、 四通阀、 室外换热器、 室内换热***、 气 液分离器沿制冷剂流通方向顺序连接组成制热回路， 所述气液分离器与所 述室内换热器之间的连接管路分别设置有第二控制阀； 所述四通阀与所述室内换热***的连接管路设置有第一单向阀； 所述室外换热器与所述室内换热***之间的管路设置有并联管路， 所 述并联管路为第二电子膨胀阀与第二单向阀之间的并联； 除此之外， 还包括串联管路， 所述串联管路设置有第三控制阀和第三 单向阀， 所述串联管路一端与所述四通阀与所述室外换热器之间的管路连 接， 所述串联管路另一端与所述第一单向阀与所述室内换热***之间的管 路。 优选地， 所述第一控制阀、 第二控制阀、 第三控制阀均为电磁阀。 优选地， 所述压缩机为变频压缩机。 与现有技术相比， 本发明提供的同时制冷和制热的一拖多空调， 可以 实现单独制冷、 单独制热、 制冷为主、 制热为主、 制冷和制热同时兼顾等 五种模式。 附图说明 图 1为本发明一优选实施例中同时制冷和制热的一拖多空调的结构示 意图。
具体实施方式 为了本领域的技术人员能够更好地理解本发明所提供的技术方案， 下 面结合具体实施例进行阐述。 本发明提供的同时制冷和制热的一拖多空调， 包括变频压缩机、 油气 分离器、 四通阀、 室外换热器、 四台室内换热机构、 气液分离器， 其中： 油气分离器与变频压缩机连接有回油管路； 室内换热机构包括室内换热器和第一电子膨胀阀， 室内换热器和第一 电子膨胀阀串联； 室内换热机构之间并联组成室内换热***； 变频压缩机、 油气分离器、 四通阀、 室内换热***、 室外换热器、 四 通阀、 气液分离器沿制冷剂流通方向顺序连接组成制热回路， 四通阀与室 内换热器之间的连接管路分别设置有第一电磁阀； 变频压缩机、 油气分离器、 四通阀、 室外换热器、 室内换热***、 气 液分离器沿制冷剂流通方向顺序连接组成制热回路， 气液分离器与室内换 热器之间的连接管路分别设置有第二电磁阀； 四通阀与室内换热***的连接管路设置有第一单向阀； 室外换热器与室内换热***之间的管路设置有并联管路， 并联管路为 第二电子膨胀阀与第二单向阀之间的并联； 除此之外， 还包括串联管路， 串联管路设置有第三电磁阀和第三单向 阀， 串联管路一端与四通阀与室外换热器之间的管路连接， 串联管路另一 端与第一单向阀与室内换热***之间的管路。 请参见图 1 , 该图为本发明一优选实施例中同时制冷和制热的一拖多 空调的结构示意图。 本实施例以四台室内换热机构为例作说明。 本发明提供的同时制冷和制热的一拖多空调可以实现单独制冷、 单独 制热、 制冷为主、 制热为主、 制冷和制热同时兼顾等五种模式， 具体工作 运行原理及过程如下： 单独制冷模式： 单独制冷时， 第三电磁阀 5、 第一电磁阀 10、 第一电 磁阀 14、 第一电磁阀 18和第一电磁阀 24关闭， 第二电磁阀 11、 第二电磁 阀 15、第二电磁阀 19和第二电磁阀 25打开，变频压缩机 1将制冷剂压缩， 高温高压的制冷剂气体进入到油气分离器 2中， 通过四通换向阀 3 , 制冷 剂气体进入到室外换热器 7, 通过第二单向阀 9和第一电子膨胀阀 13、 第 一电子膨胀阀 17、第一电子膨胀阀 20和第一电子膨胀阀 23 ,节流降压后， 低压制冷剂液体分别进入到室内换热器 12、 室内换热器 16、 室内换热器 21和室内换热器 22, 蒸发吸热后， 通过第二电磁阀 11、 第二电磁阀 15、 第二电磁阀 19和第二电磁阀 25 , 进入到气液分离器 26, 回到变频压缩机 1。 制冷为主模式： 制冷为主时， 以制冷模式运行的室内换热器数量多于 以制热模式运行的室内换热器数量。 第二电磁阀 11 (若第二电磁阀 11、 第 二电磁阀 15、 第二电磁阀 19、 第二电磁阀 25中某个关闭， 则第二电磁阀 10、第二电磁阀 14、第二电磁阀 18、第二电磁阀 24中对应的某个应打开）、 第二电磁阀 14、 第二电磁阀 18和第二电磁阀 24关闭， 第三电磁阀 5、 第 一电磁阀 10、 第二电磁阀 15、 第二电磁阀 19和第二电磁阀 25打开， 变频 压缩机 1将制冷剂压缩， 高温高压的制冷剂气体进入到油气分离器 2中， 通过四通换向阀 3 ,—部分高温高压制冷剂气体通过第三电磁阀 5、第三单 向阀 6和第一电磁阀 10, 通过室内换热器 12向室内散热， 达到制热目的， 降温后的制冷剂液体通过全开的电子第一膨胀阀 13 , 与另一部分高温高压 制冷剂气体经过室外换热器 7降温后的制冷剂液体汇合后， 通过电子第一 膨胀阀 17、 第一膨胀阀 20、 第一膨胀阀 23 , 节流降压后， 低压制冷剂液 体分别进入到室内换热器 16、 室内换热器 21、 室内换热器 22, 蒸发吸热 后， 通过第二电磁阀 15、 第二电磁阀 19、 第二电磁阀 25 , 进入到气液分 离器 26, 回到变频压缩机 1。 单独制热模式： 单独制热时， 第一电磁阀 10、 第一电磁阀 14、 第一电 磁阀 18和第一电磁阀 24打开， 第三电磁阀 5、 第二电磁阀 11、 第二电磁 阀 15、第二电磁阀 19和第二电磁阀 25关闭，变频压缩机 1将制冷剂压缩， 高温高压的制冷剂气体进入到油气分离器 2中， 通过四通换向阀 3和第一 单向阀 4, 高温高压制冷剂气体通过第一电磁阀 10、 第一电磁阀 14、 第一 电磁阀 18和第一电磁阀 24, 分别进入室内换热器 12、 室内换热器 16、 室 内换热器 21和室内换热器 22, 向室内散热， 达到制热目的。 降温后的制 冷剂液体， 通过第一电子膨胀阀 13、 第一电子膨胀阀 17、 第一电子膨胀阀 20、 第一电子膨胀阀 23和第二电子膨胀阀 8, 节流降压后， 低压制冷剂液 体进入到室外换热器 7, 蒸发吸热后，通过四通换向阀 3和气液分离器 26, 回到变频压缩机 1。 制热为主模式： 制热为主时， 以制热模式运行的室内换热器数量多于 以制冷模式运行的室内换热器数量。 第二电磁阀 11 (若第二电磁阀 11、 第 二电磁阀 15、 第二电磁阀 19、 第二电磁阀 25中某个打开， 则第一电磁阀 10、第一电磁阀 14、第一电磁阀 18、第一电磁阀 24中对应的某个应关闭）、 第一电磁阀 14、 第一电磁阀 18和第一电磁阀 24打开， 第三电磁阀 5、 第 一电磁阀 10、 第二电磁阀 15、 第二电磁阀 19和第二电磁阀 25关闭， 变频 压缩机 1将制冷剂压缩， 高温高压的制冷剂气体进入到油气分离器 2中， 通过四通换向阀 3和第一单向阀 4, 高温高压制冷剂气体通过第二电磁阀 14、 第二电磁阀 18、 第二电磁阀 24, 分别进入室内换热器 16、 室内换热 器 21、 室内换热器 22,向室内散热，达到制热目的。降温后的制冷剂液体， 通过第一电子膨胀阀 17、 第一电子膨胀阀 20、 第一电子膨胀阀 23 , —部 分制冷剂液体进入到室内换热器 12, 蒸发吸热后， 通过第二电磁阀 11 , 进 入到气液分离器 26, 回到变频压缩机 1。 另一部分多于的制冷剂液体通过 第二电子膨胀阀 8, 进入到室外换热器 7, 蒸发吸热后， 通过四通换向阀 3 和气液分离器 26, 回到变频压缩机 1。 制冷和制热同时兼顾模式： 制冷和制热同时兼顾时， 以制热模式运行 的室内换热器数量等于以制冷模式运行的室内换热器数量。 第二电磁阀 11 和第二电磁阀 15 (若第二电磁阀 11、 第二电磁阀 15、 第二电磁阀 19、 第 二电磁阀 25中某两个打开， 则第一电磁阀 10、 第一电磁阀 14、 第一电磁 阀 18、 第一电磁阀 24中对应的某两个应关闭）、 第一电磁阀 18和第一电 磁阀 24打开， 第三电磁阀 5、 第一电磁阀 10、 第一电磁阀 14、 第二电磁 阀 19和第二电磁阀 25关闭， 变频压缩机 1将制冷剂压缩， 高温高压的制 冷剂气体进入到油气分离器 2中， 通过四通换向阀 3和单向阀 4, 高温高 压制冷剂气体通过第二电磁阀 18、 第二电磁阀 2 4, 分别进入室内换热器 21、 室内换热器 22, 向室内散热， 达到制热目的。 降温后的制冷剂液体， 通过第一电子膨胀阀 20、 第一电子膨胀阀 23 , 分别进入到室内换热器 12、 室内换热器 16, 蒸发吸热后， 通过第二电磁阀 11、 第二电磁阀 15 , 进入 到气液分离器 26, 回到变频压缩机 1。 与现有技术相比， 本发明提供的同时制冷和制热的一拖多空调， 可以 实现单独制冷、 单独制热、 制冷为主、 制热为主、 制冷和制热同时兼顾等 五种模式。 当然， 以上仅是本发明的优选实施方式， 应当指出， 对于本技术领域 的普通技术人员来说， 在不脱离本发明原理的前提下， 还可以做出若干改 进和润饰， 这些改进和润饰也应视为本发明的保护范围。

Claims

权 利 要 求
1、 一种同时制冷和制热的一拖多空调， 其特征在于， 包括压缩机、 油 气分离器、 四通阀、 室外换热器、 至少二台以上的室内换热机构、 气液分 离器， 其中：
所述油气分离器与所述压缩机连接有回油管路；
所述室内换热机构包括室内换热器和第一电子膨胀阀， 所述室内换热 器和第一电子膨胀阀串联；
所述室内换热机构之间并联组成室内换热***；
所述压缩机、 油气分离器、 四通阀、 室内换热***、 室外换热器、 四 通阀、 气液分离器沿制冷剂流通方向顺序连接组成制热回路， 所述四通阀 与所述室内换热器之间的连接管路分别设置有第一控制阀；
所述压缩机、 油气分离器、 四通阀、 室外换热器、 室内换热***、 气 液分离器沿制冷剂流通方向顺序连接组成制热回路， 所述气液分离器与所 述室内换热器之间的连接管路分别设置有第二控制阀；
所述四通阀与所述室内换热***的连接管路设置有第一单向阀； 所述室外换热器与所述室内换热***之间的管路设置有并联管路， 所 述并联管路为第二电子膨胀阀与第二单向阀之间的并联；
除此之外， 还包括串联管路， 所述串联管路设置有第三控制阀和第三 单向阀， 所述串联管路一端与所述四通阀与所述室外换热器之间的管路连 接， 所述串联管路另一端与所述第一单向阀与所述室内换热***之间的管 路。
2、根据权利要求 1所述的同时制冷和制热的一拖多空调，其特征在于， 所述第一控制阀、 第二控制阀、 第三控制阀均为电磁阀。
3、根据权利要求 1所述的同时制冷和制热的一拖多空调，其特征在于, 所述压缩机为变频压缩机。
PCT/CN2011/071673 2010-06-29 2011-03-10 一种同时制冷和制热的一拖多空调 WO2012000323A1 (zh)

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