WO2020082739A1 - 两管制喷气增焓室外机及多联机系统 - Google Patents

两管制喷气增焓室外机及多联机系统 Download PDF

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Publication number
WO2020082739A1
WO2020082739A1 PCT/CN2019/089858 CN2019089858W WO2020082739A1 WO 2020082739 A1 WO2020082739 A1 WO 2020082739A1 CN 2019089858 W CN2019089858 W CN 2019089858W WO 2020082739 A1 WO2020082739 A1 WO 2020082739A1
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WIPO (PCT)
Prior art keywords
outdoor unit
heat exchanger
enthalpy
way valve
interface
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PCT/CN2019/089858
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English (en)
French (fr)
Inventor
颜利波
杨国忠
王命仁
Original Assignee
合肥美的暖通设备有限公司
广东美的暖通设备有限公司
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Application filed by 合肥美的暖通设备有限公司, 广东美的暖通设备有限公司 filed Critical 合肥美的暖通设备有限公司
Priority to CA3065395A priority Critical patent/CA3065395A1/en
Priority to US16/619,599 priority patent/US20200173696A1/en
Publication of WO2020082739A1 publication Critical patent/WO2020082739A1/zh

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    • 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
    • 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
    • F25B40/00—Subcoolers, desuperheaters or superheaters
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/385—Dispositions with two or more expansion means arranged in parallel on a refrigerant line leading to the same evaporator
    • 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
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/30—Expansion means; Dispositions thereof
    • F25B41/39—Dispositions with two or more expansion means arranged in series, i.e. multi-stage expansion, on a refrigerant line leading to the same evaporator
    • 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
    • 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
    • F25B2313/0233—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple indoor units in parallel arrangements
    • 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
    • F25B2313/025—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units
    • F25B2313/0253—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements
    • F25B2313/02533—Compression machines, plants or systems with reversible cycle not otherwise provided for using multiple outdoor units in parallel arrangements during heating
    • 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
    • F25B2313/027—Compression machines, plants or systems with reversible cycle not otherwise provided for characterised by the reversing means
    • 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
    • F25B2400/00—General 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
    • F25B2400/13—Economisers
    • 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
    • F25B2400/00—General 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
    • F25B2400/23—Separators

Definitions

  • the present application relates to the field of refrigeration technology, and more specifically, to a two-control jet enthalpy-enhanced outdoor unit and a two-control jet enthalpy-enhanced multi-connection system.
  • This application aims to solve at least one of the technical problems in the prior art.
  • One aspect of the present application provides a two-control jet enthalpy-enhancing outdoor unit.
  • One aspect of the present application provides a two-control jet enthalpy multi-online system.
  • the present application provides a two-control jet enthalpy-enhancing outdoor unit.
  • the two-control jet enthalpy-enhancing outdoor unit includes: an outdoor heat exchanger, a first interface, and a second interface; Return air port and injection port; reversing component, the first end of the reversing component is connected to the exhaust port, and the second end of the reversing component is connected to the return air port; flash evaporator, including refrigerant inlet, air outlet and liquid outlet , The air outlet is connected to the injection port, and the liquid outlet is connected to the first interface and the inlet of the outdoor heat exchanger; the throttling component, one end of the throttling component is connected to the refrigerant inlet, and the other end is connected to the second interface ;
  • the first pipeline one end of which is connected to the outlet of the outdoor heat exchanger, and the other end is located between the throttle assembly and the second interface.
  • the two-control jet enthalpy-increasing enthalpy outdoor unit includes an outdoor heat exchanger, a first interface, a second interface, a jet enthalpy-increasing compressor, a reversing component, a flash evaporator, a throttling component and a first pipeline
  • the first end is connected to the exhaust port
  • the second end of the reversing component is connected to the air return port
  • the air outlet of the flash evaporator is connected to the injection port
  • the liquid outlet of the flash evaporator is respectively connected to the first interface and outdoor heat exchange
  • the inlet of the evaporator is connected
  • the refrigerant inlet of the flash evaporator is connected to one end of the throttling component
  • the other end of the throttling component is connected to the second interface
  • one end of the first pipeline is connected to the outlet of the outdoor heat exchanger.
  • the other end of a pipeline is located between the throttling component and the second interface.
  • the gaseous refrigerant flowing out of the jet-enhanced enthalpy heat exchanger enters the compressor directly from the middle injection port of the compressor.
  • supplemental air and enthalpy compression at the same time increase the flash evaporator and throttling components, significantly increase the amount of refrigerant circulation during low temperature heating operation, and achieve the expansion of the low temperature heating operating range in the two-control jet air enthalpy increasing outdoor unit, which significantly improves the heating capacity , And reach Elevated temperatures purpose of reducing the cooling capacity of the exhaust gas superheat.
  • the first pipeline is added, so that in the four modes of cooling, heating, main cooling and main heating, the effect of jet enthalpy increase can be achieved.
  • a flash evaporator is a container that can contain refrigerant. It usually has three ports: a refrigerant inlet for the refrigerant gas-liquid mixture, a refrigerant outlet, and a refrigerant outlet. Its working principle is: the gas-liquid mixture of refrigerant from the upstream throttling element flows into the refrigerant inlet of the flash evaporator. Due to the sudden expansion of the volume, a large amount of refrigerant flashes out of the liquid refrigerant and becomes a lower temperature refrigeration The refrigerant gas flows out from the gas outlet, and the liquid refrigerant without flashing flows out of the flash evaporator from the liquid outlet. Therefore, no gas droplets are entrained at the gas outlet of the flash evaporator, and no gas is mixed at the liquid outlet.
  • the air outlet of the flash evaporator is connected to the injection port, when the enthalpy of air injection is increased, the refrigerant discharged from the air outlet can be guaranteed to be gaseous refrigerant, which effectively prevents the problem of liquid blow of the enthalpy-increased compressor, and ensures the The service life of the enthalpy compressor.
  • the two-control jet enthalpy outdoor unit has a two-control structure.
  • the two-control jet enthalpy-enhanced outdoor unit provided in this application is applied to the two-control jet enthalpy-enhanced multi-connected system, and the multi-connected system is a heat recovery multi-connected.
  • the meaning of heat recovery is to recover the heat discharged from the cooling room for heating Room heating, specifically, the system absorbs heat from the cooling room through the indoor unit heat exchanger, and then releases all or part of the heat to the heating room for heating by the indoor unit heat exchanger, the system is insufficient or the remaining heat Then it is taken from the environment through the outdoor unit heat exchanger.
  • heat recovery multi-line has a significant energy saving effect.
  • cooling main cooling
  • main heating There are 4 operation modes for heat recovery multi-line: cooling, main cooling, main heating and heating.
  • cooling / heating mode When all running indoor units are in cooling / heating mode, the outdoor unit operates in cooling / heating mode; when the running indoor unit has both cooling and heating and the cooling load is greater than the heating load, the outdoor unit will Operate in the main cooling mode; when the operating indoor unit has both cooling and heating and the cooling load is less than the heating load, the outdoor unit will operate in the main heating mode. If the flow required to operate the cooling indoor unit and the heating indoor unit is exactly equal, the system operates in full heat recovery mode.
  • the two-control enthalpy-enhanced outdoor unit provided by the above technical solution of the present application also has the following additional technical features:
  • the third end of the reversing component is reversibly connected to the inlet of the outdoor heat exchanger or the outlet of the outdoor heat exchanger, and the fourth end of the reversing component is reversibly connected to the first Two interfaces or the first interface.
  • the third end of the reversing component is switchably connected to the inlet of the outdoor heat exchanger or the outlet of the outdoor heat exchanger, and the fourth end of the reversing component is switchably connected to the second interface or the first Interface
  • the third end of the reversing component is connected to the inlet of the outdoor heat exchanger, and the fourth end of the reversing component is connected to the second interface
  • the multi-online system with controlled air injection enthalpy is heating and main heating mode
  • the third end of the reversing component is connected to the outlet of the outdoor heat exchanger
  • the fourth end of the reversing component is connected to the first interface to achieve the refrigerant Different directions.
  • the two-control air-jet enthalpy-enhancing outdoor unit includes: a first solenoid valve disposed between the air outlet and the injection port, and the conduction direction of the first solenoid valve is from the air outlet to the injection port direction.
  • the two-control jet enthalpy-increasing outdoor unit includes a first solenoid valve, and the first solenoid valve is energized, turned on and off, and when the first solenoid valve is turned on and off, the conduction direction of the first solenoid valve is From the air outlet to the direction of the injection port, that is, only the refrigerant is allowed to pass from the air outlet to the direction of the injection port to avoid the phenomenon of refrigerant backflow.
  • the two-control air-jet enthalpy-enhancing outdoor unit includes: a first one-way valve disposed on the first pipeline, and the conduction direction of the first one-way valve is the outlet of the outdoor heat exchanger To the direction of throttling component.
  • the outlet of the outdoor heat exchanger and the throttle assembly are connected, and a first check valve is provided on the first pipeline, and the outlet of the outdoor heat exchanger and the throttle assembly
  • the first one-way valve is added to prevent cross-flow between the outlet of the outdoor heat exchanger and the throttle assembly during heating, and only in the cooling and main cooling modes, the refrigerant flowing out of the outlet of the outdoor heat exchanger passes through the first
  • the check valve flows into the throttle assembly, and in the heating and main heating modes, the first check valve closes, so that the refrigerant flowing out of the outlet of the outdoor heat exchanger cannot pass through the first pipeline.
  • the two-control jet air-enhanced outdoor unit includes: a second one-way valve, the second one-way valve connects the first port to the liquid outlet, and the conduction direction of the second one-way valve It is the direction from the liquid outlet to the first port; the third one-way valve, the third one-way valve connects the second port to the throttling assembly, and the conduction direction of the third one-way valve is from the second port to the throttling The orientation of the component.
  • the two-control jet enthalpy-increasing outdoor unit includes a second one-way valve.
  • the conduction direction of the second one-way valve is from the liquid outlet to the first port.
  • One end of the second one-way valve is located at the outlet Between the liquid port and the inlet of the outdoor heat exchanger, the other end of the second check valve is connected to the first interface.
  • the second one-way valve opens, so that the refrigerant flowing out of the liquid outlet of the flash evaporator flows to the first interface through the second one-way valve.
  • the second check valve is closed, and the refrigerant flowing out of the liquid outlet of the flash evaporator cannot pass through the second check valve, and can only pass through the outdoor heat exchanger inlet.
  • the two-control air-jet enthalpy-increasing outdoor unit includes a third one-way valve, and the conduction direction of the third one-way valve is the direction from the second interface to the throttle assembly.
  • the third check valve opens, and the refrigerant flowing out of the second port flows through the third check valve in the direction of the throttle assembly.
  • the third check valve is closed, and the refrigerant flowing out of the first pipe can only flow to the throttle assembly.
  • the two-control jet air-enhanced outdoor unit includes: a fourth one-way valve, the fourth one-way valve connects the second port to the fourth end of the reversing assembly, and the fourth one-way valve
  • the conduction direction is from the second port to the fourth end of the reversing assembly; the fifth check valve, the fifth check valve connects the first port to the fourth end of the reversing assembly, the fifth check valve
  • the conduction direction is the direction from the fourth end of the commutation component to the first interface.
  • the two-control jet enthalpy-increasing outdoor unit includes a fourth one-way valve and a fifth one-way valve.
  • the fourth one-way valve connects the second port to the fourth end of the reversing assembly, and the fourth one-way valve
  • the conduction direction of the valve is from the second port to the fourth end of the reversing assembly.
  • the fifth check valve connects the first port to the fourth end of the reversing assembly.
  • the conducting direction of the fifth check valve is In the direction from the fourth end of the reversing component to the first interface, in the cooling and main cooling modes, the fourth check valve is turned on and the fifth check valve is closed. In the heating and main heating mode, the first Five check valves are on and the fourth check valve is closed.
  • the two-control air-jet enthalpy-enhancing outdoor unit includes: a sixth check valve, the sixth check valve connects the third end of the reversing component to the inlet of the outdoor heat exchanger, the sixth The conduction direction of the one-way valve is the direction from the third end of the reversing component to the outdoor heat exchanger; the seventh one-way valve, the seventh one-way valve connects the third end of the reversing component to the outlet of the outdoor heat exchanger Connected, the conduction direction of the seventh check valve is the direction from the outlet of the outdoor heat exchanger to the third end of the reversing assembly.
  • the two-control jet enthalpy-increasing outdoor unit includes: a sixth check valve and a seventh check valve.
  • the sixth check valve and the fifth check valve are both connected to the third end of the reversing assembly.
  • the other ends of the six check valve and the seventh check valve are respectively connected to the inlet of the outdoor heat exchanger and the outlet of the outdoor heat exchanger.
  • the sixth check valve is turned on and the seventh The one-way valve is closed, and in the heating and main heating modes, the seventh one-way valve conducts and the sixth one-way valve closes.
  • the throttle assembly includes at least one throttle device and at least one eighth one-way valve connected in series, and the conduction direction of the eighth one-way valve is from the second interface to the refrigerant inlet direction.
  • the throttling assembly includes at least one throttling device and at least one eighth one-way valve connected in series.
  • the conduction direction of the eighth one-way valve is the direction from the subcooler to the inlet of the outdoor heat exchanger.
  • One eighth check valve can be connected in series for one throttle device, or multiple eighth check valves can be connected in series for one throttle device, and one eighth check valve can be connected in series for multiple throttle devices to ensure the effect of throttling and pressure reduction And, after multi-level buck, better buck effect can be achieved.
  • the two-control jet enthalpy-enhancing outdoor unit includes: a second pipeline connecting the exhaust port to the first interface; a second solenoid valve disposed on the second pipeline, the second electromagnetic The conduction direction of the valve is the direction from the exhaust port to the first port.
  • the two-control jet enthalpy-increasing outdoor unit includes a second pipeline and a second solenoid valve provided on the second pipeline.
  • the second solenoid valve is closed and the refrigerant discharged from the exhaust port All enter the entrance of the outdoor heat exchanger through the third end of the reversing component; in the main cooling mode, the second solenoid valve opens, and the refrigerant part discharged from the exhaust port enters the outdoor heat exchanger through the third end of the reversing component , The other part enters the first interface from the second solenoid valve to ensure that the two-control air-jet enthalpy multi-online system can realize two modes of cooling and main cooling.
  • the two-control air-jet enthalpy-enhancing outdoor unit includes: a ninth check valve, which connects the inlet of the outdoor heat exchanger to the liquid outlet, and the ninth check valve The conduction direction is the direction from the liquid outlet to the inlet of the outdoor heat exchanger.
  • the two-control air-jet enthalpy-enhancing outdoor unit includes a ninth one-way valve, and the conduction direction of the ninth one-way valve is the direction from the liquid outlet to the inlet of the outdoor heat exchanger.
  • the ninth check valve In the cooling and main cooling modes, the ninth check valve is closed, and the refrigerant flowing from the liquid outlet of the flash evaporator cannot enter the outdoor heat exchanger through the ninth check valve, and can only pass through the second check valve.
  • the pipeline enters the first port.
  • the ninth check valve is opened, and the refrigerant flowing out of the liquid outlet of the flash evaporator enters the inlet of the outdoor heat exchanger through the ninth check valve.
  • a two-control jet enthalpy multi-online system includes the two-control jet enthalpy outdoor unit as described in any one of the above technical solutions.
  • the enthalpy multi-online system has all the beneficial effects of the two-control jet enthalpy-enhancing outdoor unit as in any of the above technical solutions.
  • FIG. 1 shows a structural schematic diagram of a two-control jet enthalpy multi-online system provided by an embodiment of the present application
  • FIG. 2 shows another structural schematic diagram of a two-control jet enthalpy multi-online system provided by an embodiment of the present application
  • FIG. 3 shows a schematic structural diagram of a two-control jet enthalpy multi-online system in cooling mode provided by an embodiment of the present application
  • FIG. 4 shows a schematic structural view of a two-control air-jet enthalpy multi-online system in an heating mode provided by an embodiment of the present application
  • FIG. 5 shows a schematic structural diagram of a two-control jet multi-enthalpy multi-online system provided in an embodiment of the present application in the main cooling mode;
  • FIG. 6 shows a schematic structural view of a two-control air-jet enthalpy multi-online system provided in an embodiment of the present application in a main heating mode
  • FIG. 7 shows a pressure enthalpy diagram of a two-control air injection enthalpy multi-online system provided by an embodiment of the present application.
  • the two-control jet enthalpy-enhanced outdoor unit and the two-control jet enthalpy-enhanced multi-connection system provided according to an embodiment of the present application are described below with reference to FIGS. 1 to 7.
  • a two-control jet enthalpy-enhancing outdoor unit includes: an outdoor heat exchanger 10, a first interface 12 and a second interface 14;
  • the enthalpy compressor 16 includes an exhaust port 162, a return air port 164, and an injection port 166;
  • the reversing assembly 18 includes a first end to a fourth end. The first end of the reversing assembly 18 is connected to the exhaust port 162. The second end of the assembly 18 is connected to the return air port 164;
  • the flash evaporator 20 includes a refrigerant inlet 202, an air outlet 204, and a liquid outlet 206.
  • the air outlet 204 is connected to the injection port 166, and the liquid outlet 206 is connected to the first
  • the interface 12 is connected to the inlet of the outdoor heat exchanger 10; the throttling component 22, one end of the throttling component 22 is connected to the refrigerant inlet 202, and the other end is connected to the second interface 14; The outlet of the outdoor heat exchanger 10 is connected, and the other end is located between the throttle assembly 22 and the second interface 14.
  • the two-control jet-enhanced outdoor unit includes an outdoor heat exchanger 10, a first interface 12, a second interface 14, a jet-enhanced compressor 16, a reversing component 18, a flasher 20, a throttling component 22 and a second A pipeline 24, the first end of the reversing assembly 18 is connected to the exhaust port 162, the second end of the reversing assembly 18 is connected to the air return port 164, and the air outlet 204 of the flash evaporator 20 is connected to the injection port 166, The liquid outlet 206 of the flash evaporator 20 is connected to the first interface 12 and the inlet of the outdoor heat exchanger 10 respectively.
  • the refrigerant inlet 202 of the flash evaporator 20 is connected to one end of the throttle assembly 22 and the other end of the throttle assembly 22 is connected to
  • the second interface 14 is connected, one end of the first pipeline 24 is connected to the outlet of the outdoor heat exchanger 10, and the other end of the first pipeline 24 is located between the throttle assembly 22 and the second interface 14, which is used by this application Jet-enhanced enthalpy compressor 16, the gaseous refrigerant flowing out of the jet-enhanced enthalpy heat exchanger enters the compressor directly from the intermediate injection port 166 of the compressor to perform supplemental gas and enthalpy-enhancement compression, and at the same time, the flash evaporator 20 and the throttle assembly 22 are added.
  • the first pipeline 24 is added so that the effect of increasing the enthalpy of air injection can be achieved in the four modes of cooling, heating, main cooling and main heating.
  • the flash evaporator 20 is a container that can contain refrigerant, and it usually has three interfaces: a refrigerant inlet 202 for entering a refrigerant gas-liquid mixture, a refrigerant outlet 204, and a refrigerant outlet 206.
  • Its working principle is: the gas-liquid mixture of refrigerant from the upstream throttling element flows into the refrigerant inlet 202 of the flash evaporator 20. Due to the sudden expansion of the volume, a large amount of refrigerant flashes out of the liquid refrigerant and becomes lower in temperature The refrigerant gas flows out from the air outlet 204, and the liquid refrigerant without flashing flows out of the flash evaporator 20 from the liquid outlet 206. Therefore, no liquid droplets are entrained at the gas outlet 204 of the flash evaporator 20, and no gas is mixed at the liquid outlet 206.
  • the outlet 204 of the flash evaporator 20 is connected to the injection port 166, when the enthalpy of air injection is increased, it can be ensured that the refrigerant discharged from the outlet 204 is all gaseous refrigerant, which effectively prevents the liquid blow of the enthalpy-increased compressor 16 , To ensure the service life of the jet enthalpy-increasing compressor 16.
  • the two-control jet enthalpy-enhancing outdoor unit has a two-control structure.
  • the two-control heat recovery multi-on-line system provided in this application has a simple structure, saves copper pipe materials, and reduces installation costs.
  • the two-control jet enthalpy-enhanced outdoor unit provided in this application is applied to the two-control jet enthalpy-enhanced multi-connected system, and the multi-connected system is a heat recovery multi-connected.
  • the meaning of heat recovery is to recover the heat discharged from the cooling room for heating Room heating, specifically, the system absorbs heat from the cooling room through the indoor unit heat exchanger, and then releases all or part of the heat to the heating room for heating by the indoor unit heat exchanger, the system is insufficient or the remaining heat Then it is taken from the environment through the outdoor unit heat exchanger.
  • heat recovery multi-line has a significant energy saving effect.
  • cooling main cooling
  • main heating There are 4 operation modes for heat recovery multi-line: cooling, main cooling, main heating and heating.
  • cooling / heating mode When all running indoor units are in cooling / heating mode, the outdoor unit operates in cooling / heating mode; when the running indoor unit has both cooling and heating and the cooling load is greater than the heating load, the outdoor unit will Operate in the main cooling mode; when the operating indoor unit has both cooling and heating and the cooling load is less than the heating load, the outdoor unit will operate in the main heating mode. If the flow required to operate the cooling indoor unit and the heating indoor unit is exactly equal, the system operates in full heat recovery mode.
  • the third end of the reversing assembly 18 is switchably connected to the inlet of the outdoor heat exchanger 10 or the outlet of the outdoor heat exchanger 10, and the fourth end of the reversing assembly 18 It is switchably connected to the second interface 14 or the first interface 12.
  • the third end of the commutation assembly 18 is switchably connected to the inlet of the outdoor heat exchanger 10 or the outlet of the outdoor heat exchanger 10, and the fourth end of the commutation assembly 18 is switchably connected to the second The interface 14 or the first interface 12, when the two-control jet multi-entry enthalpy multi-online system is in cooling and main cooling modes, the third end of the reversing module 18 is connected to the inlet of the outdoor heat exchanger 10, and the fourth of the reversing module 18
  • the second end 14 is connected to the second interface; when the two-control air-enhanced multi-line system is heating and main heating mode, the third end of the reversing module 18 is connected to the outlet of the outdoor heat exchanger 10, the reversing module 18
  • the fourth end is connected to the first interface 12 to achieve different flow directions of the refrigerant.
  • the two-control air-jet enthalpy-enhancing outdoor unit includes: a first solenoid valve 26 disposed between the air outlet 204 and the injection port 166, and the conducting direction of the first solenoid valve 26 is From the air outlet 204 to the injection port 166 direction.
  • the two-control jet enthalpy-increasing outdoor unit includes a first solenoid valve 26, the first solenoid valve 26 is turned on and off, and when the first solenoid valve 26 is turned on and off, the The conduction direction is from the air outlet 204 to the injection port 166, that is, only the refrigerant is allowed to conduct from the air outlet 204 to the injection port 166, to avoid the phenomenon of refrigerant backflow.
  • the two-control air-jet enthalpy-enhancing outdoor unit includes: a first one-way valve 28 disposed on the first pipeline 24, and the conduction direction of the first one-way valve 28 is due to The outlet of the outdoor heat exchanger 10 is in the direction of the throttle assembly 22.
  • the outlet of the outdoor heat exchanger 10 and the throttle assembly 22 are connected, and a first check valve 28 is provided on the first pipeline 24, the outdoor heat exchanger
  • a first one-way valve 28 is added between the outlet 10 and the throttle assembly 22 to prevent crosstalk between the outlet of the outdoor heat exchanger 10 and the throttle assembly 22 during heating. It is only allowed in the cooling and main cooling modes.
  • the refrigerant flowing out of the outlet of the heat exchanger 10 flows into the throttle assembly 22 through the first check valve 28, and in the heating and main heating modes, the first check valve 28 is closed, so that the outdoor heat exchanger 10 The refrigerant flowing out of the outlet cannot pass through the first pipe 24.
  • the two-control air-jet enthalpy-enhancing outdoor unit includes: a second one-way valve 30, the second one-way valve 30 connects the first port 12 to the liquid outlet 206, and the second one
  • the conduction direction of the check valve 30 is the direction from the liquid outlet 206 to the first port 12
  • the third check valve 32, the third check valve 32 connects the second port 14 to the throttle assembly 22, the third check
  • the conduction direction of the valve 32 is the direction from the second port 14 to the throttle assembly 22.
  • the two-control air-jet enthalpy-enhancing outdoor unit includes a second one-way valve 30.
  • the conduction direction of the second one-way valve 30 is the direction from the liquid outlet 206 to the first port 12, and the second one-way valve One end of 30 is located between the liquid outlet 206 and the inlet of the outdoor heat exchanger 10, and the other end of the second check valve 30 is connected to the first interface 12.
  • the second one-way valve 30 is opened, so that the refrigerant flowing out of the liquid outlet 206 of the flash evaporator 20 flows to the first port 12 through the second one-way valve 30.
  • the second check valve 30 is closed, and the refrigerant flowing out of the liquid outlet 206 of the flash evaporator 20 cannot pass through the second check valve 30, and can only pass through the outdoor heat exchanger 10 inlet.
  • the two-control air-jet enthalpy-increasing outdoor unit includes a third check valve 32, and the conduction direction of the third check valve 32 is the direction from the second port 14 to the throttle assembly 22.
  • the third check valve 32 In the heating and main heating modes, the third check valve 32 is opened, and the refrigerant flowing out of the second port 14 flows toward the throttle assembly 22 through the third check valve 32.
  • the third check valve 32 In the cooling and main cooling modes, the third check valve 32 is closed, and the refrigerant flowing out of the first pipe 24 can only flow to the throttle assembly 22.
  • the two-control air-jet enthalpy-increasing outdoor unit includes: a fourth check valve 34 that connects the second port 14 to the fourth end of the reversing assembly 18 ,
  • the conduction direction of the fourth one-way valve 34 is the direction from the second port 14 to the fourth end of the reversing assembly 18;
  • the fifth one-way valve 36, the fifth one-way valve 36 connects the first port 12 and the reversing assembly
  • the fourth end of 18 is connected, and the conduction direction of the fifth check valve 36 is the direction from the fourth end of the reversing assembly 18 to the first interface 12.
  • the two-control jet enthalpy-increasing outdoor unit includes a fourth one-way valve 34 and a fifth one-way valve 36.
  • the fourth one-way valve 34 connects the second port 14 to the fourth end of the reversing assembly 18,
  • the conduction direction of the fourth check valve 34 is from the second port 14 to the fourth end of the reversing assembly 18,
  • the fifth check valve 36 connects the first port 12 to the fourth end of the reversing assembly 18,
  • the conduction direction of the fifth check valve 36 is the direction from the fourth end of the reversing assembly 18 to the first port 12.
  • the fourth check valve 34 conducts and the fifth check valve The valve 36 is closed, and in the heating and main heating modes, the fifth check valve 36 is turned on and the fourth check valve 34 is closed.
  • the two-control air-jet enthalpy-increasing outdoor unit includes: a sixth one-way valve 38, the sixth one-way valve 38 connects the third end of the reversing assembly 18 with the outdoor heat exchanger 10
  • the inlet of the 6th check valve 38 is connected to the direction from the third end of the switch assembly 18 to the outdoor heat exchanger 10; the seventh check valve 40, the seventh check valve 40 will switch the switch assembly
  • the third end of 18 is connected to the outlet of the outdoor heat exchanger 10, and the conduction direction of the seventh check valve 40 is the direction from the outlet of the outdoor heat exchanger 10 to the third end of the reversing module 18.
  • the two-control jet enthalpy-increasing outdoor unit includes: a sixth check valve 38 and a seventh check valve 40, the sixth check valve 38 and the fifth check valve 36 are both The three ends are connected, and the other ends of the sixth check valve 38 and the seventh check valve 40 are connected to the inlet of the outdoor heat exchanger 10 and the outlet of the outdoor heat exchanger 10 respectively.
  • the first The six one-way valve 38 is on and the seventh one-way valve 40 is closed.
  • the seventh one-way valve 40 is on and the sixth one-way valve 38 is closed.
  • the throttle assembly 22 includes at least one throttle device 222 and at least one eighth one-way valve 224 connected in series.
  • the conduction direction of the eighth one-way valve 224 is determined by the The direction of the second interface 14 to the refrigerant inlet 202.
  • the throttling assembly 22 includes at least one throttling device 222 and at least one eighth one-way valve 224 connected in series.
  • the conduction direction of the eighth one-way valve 224 is from the subcooler to the outdoor heat exchanger 10
  • the direction of the inlet can be one eighth check valve 224 in series for one throttle device 222, or multiple eighth check valves 224 in series for one throttle device 222, and one eighth check valve in series for multiple throttle devices 222 Valve 224 to ensure the effect of throttling and depressurization, and can achieve better depressurization effect after multi-stage depressurization.
  • the two-control jet enthalpy-increasing outdoor unit includes: a second pipeline connecting the exhaust port 162 to the first interface 12; and a second solenoid valve 42 provided on the second tube On the way, the conducting direction of the second solenoid valve 42 is the direction from the exhaust port 162 to the first port 12.
  • the two-control jet enthalpy-increasing outdoor unit includes a second pipeline and a second solenoid valve 42 provided on the second pipeline.
  • the second solenoid valve 42 is closed, and the exhaust port 162 All the discharged refrigerant enters the inlet of the outdoor heat exchanger 10 through the third end of the reversing assembly 18; in the main cooling mode, the second solenoid valve 42 is opened, and the part of the refrigerant discharged from the exhaust port 162 passes through the reversing assembly 18
  • the third end enters the inlet of the outdoor heat exchanger 10, and the other part enters the first interface 12 from the second solenoid valve 42 to ensure that the two-control air-jet enthalpy multi-online system can realize both cooling and main cooling modes.
  • the two-control air-jet enthalpy-enhancing outdoor unit includes: a ninth one-way valve 44 that connects the inlet of the outdoor heat exchanger 10 to the liquid outlet 206,
  • the conduction direction of the ninth check valve 44 is the direction from the liquid outlet 206 to the inlet of the outdoor heat exchanger 10.
  • the two-control air-jet enthalpy-enhancing outdoor unit includes a ninth one-way valve 44.
  • the conduction direction of the ninth one-way valve 44 is the direction from the liquid outlet 206 to the inlet of the outdoor heat exchanger 10.
  • the ninth check valve 44 is closed, and the refrigerant flowing out of the liquid outlet 206 of the flash evaporator 20 cannot enter the outdoor heat exchanger 10 through the ninth check valve 44 and can only pass through the The pipeline where the two check valves 30 are located enters the first interface 12.
  • the ninth check valve 44 is opened, and the refrigerant flowing out of the liquid outlet 206 of the flash evaporator 20 enters the outdoor heat exchanger 10 through the ninth check valve 44.
  • a two-control jet enthalpy multi-entry system includes the two-control jet enthalpy-enhanced outdoor unit according to any of the foregoing embodiments.
  • the enthalpy multi-connection system has all the beneficial effects of the two-control air-jet enthalpy-enhancing outdoor unit of any of the above embodiments.
  • the two-control air-jet enthalpy multi-online system includes a refrigerant flow switching device 48.
  • the refrigerant flow switching device 48 includes a gas-liquid separator 50 for gas-liquid two-phase refrigerant splitting, and a plate heat exchanger is used to obtain liquid refrigerant supercooling. , Multiple sets of solenoid valves are used to switch the refrigerant flow.
  • the high-temperature and high-pressure gas refrigerant exits the jet enthalpy-increasing compressor 16 through the reversing assembly 18 and the sixth check valve 38, is condensed by the outdoor heat exchanger 10, and is condensed into a high-pressure liquid refrigerant.
  • the throttling and depressurizing two-phase refrigerant enters the flash evaporator 20
  • the gaseous refrigerant enters the injection port 166 of the jet enthalpy compressor 16 through the first solenoid valve 26, and the other part of the liquid refrigerant passes through the second one-way valve 30 Reaching the first port 12 (output pipe), the refrigerant flows into the inlet of the gas-liquid separator 50 of the switching device 48.
  • a high-temperature and high-pressure gas refrigerant comes out of the jet enthalpy-increasing compressor 16 and passes through the second solenoid valve 42 and the reversing assembly 18 and the fifth check valve 36 to the high-pressure valve. Then it flows from the high-pressure valve through the first port 12 (outer machine output pipe) to the refrigerant flow to the inlet of the switching device 48, enters the gas-liquid separator 50, from the gas-liquid separator 50 gas side outlet through the heating solenoid valve from the gas pipe into Controlled air injection enthalpy-increasing indoor unit 46.
  • the two-control air injection enthalpy-increasing indoor unit 46 After the two-control air injection enthalpy-increasing indoor unit 46 is condensed into a high-pressure liquid refrigerant, it flows through the electronic expansion valve of the internal unit and becomes a high-pressure two-phase refrigerant, which flows through the section of the refrigerant flowing to the switching device 48.
  • the flow element (the opening is kept fully open and the resistance is reduced as much as possible) returns to the second interface 14 (outer machine input pipe) through the low-pressure valve to enter the two-control jet enthalpy outdoor unit, after passing through the third one-way valve 32 and then through the main machine
  • the throttling module 22 enters the inlet of the flash evaporator 20, and the refrigerant flows out of the liquid outlet 206.
  • the gaseous refrigerant flows out of the gas-side outlet through the heating solenoid valve, enters the air pipe of the heated two-control jet air-enhanced indoor unit 46, and condenses to the heated two-control jet air-enhanced indoor unit 46, and passes through the two-control air jet-enhanced indoor unit.
  • the throttling element of the engine 46 returns to the inlet of the second subcooler 54 of the refrigerant distribution device, it is mixed with the liquid refrigerant from the liquid side outlet of the gas-liquid separator 50 after being supercooled by the first subcooler 52.
  • the second supercooler 54 After being further supercooled by the second supercooler 54, it enters the refrigerated two-control jet enthalpy indoor unit 46, and after the cooling of the refrigerated two-control jet enthalpy indoor unit 46, the throttle element is depressurized in the refrigerated two-control jet enthalpy indoor unit.
  • the engine 46 evaporates and absorbs heat, becomes a low-pressure gaseous refrigerant, and then returns to the second interface 14 of the two-control air-enhanced enthalpy outdoor unit through the cooling solenoid valve. After returning to the low-pressure tank ACC through the fourth one-way valve 34 and the reversing assembly 18, it then returns to the air return port 164 of the jet enthalpy compressor 16.
  • a high-temperature and high-pressure gas refrigerant comes out of the jet enthalpy-increasing compressor 16, passes through the second solenoid valve 42 and the reversing assembly 18 and the fifth check valve 36 to the high-pressure valve, respectively Then, it flows from the high-pressure valve through the first port 12 to the inlet of the refrigerant to the switching device 48, and enters the gas-liquid separator 50.
  • the high-pressure gas refrigerant enters the heated two-control enthalpy-increasing enthalpy indoor unit 46 from the gas pipe through the gas solenoid outlet of the gas-liquid separator 50 through the heating solenoid valve.
  • the two-control jet multi-online system with increased enthalpy increases the enthalpy difference (h AJ > h A-J ' ), and can achieve the same capacity with a smaller amount of refrigerant circulation. 16
  • the frequency can be lower and work done less, thereby improving energy efficiency.
  • the two-control air injection enthalpy multi-entry system reduces the superheat of exhaust gas (SH ⁇ SH '), when high temperature cooling, the enthalpy of injection can increase the refrigerant circulation and improve the cooling capacity.
  • connection can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium.

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Abstract

一种两管制喷气增焓室外机及多联机系统，包括：室外换热器(10)；压缩机(16)，包括排气口(162)、回气口(164)和喷射口(166)；换向组件(18)的第一端与排气口(162)相接，第二端与回气口(164)相接；闪蒸器(20)，包括冷媒入口(202)、出气口(204)及出液口(206)，出气口(204)与喷射口(166)相接，出液口(206)分别与第一接口(12)及室外换热器(10)的入口相接；节流组件(22)的一端与冷媒入口(202)相接，另一端与第二接口(14)相接；第一管路(24)。

Description

两管制喷气增焓室外机及多联机系统
本申请基于申请号为201811227632.6，申请日为2018年10月22日的中国专利申请提出，并要求该中国专利申请的优先权，该中国专利申请的全部内容在此引入本申请作为参考。
技术领域
本申请涉及制冷技术领域，更具体而言，涉及一种两管制喷气增焓室外机及一种两管制喷气增焓多联机系统。
背景技术
常规的喷气增焓低温强热技术目前还只应用于热泵和三管制热回收系统中，两管制系统由于其外机侧回气管只有低压，很难在压缩机喷气口实现喷焓。这样两管制系统多联机系统在低温环境下，会由于环境温度低，导致低压侧压力低，回气密度小，冷媒循环量小，进而出现制热能力不足的问题，同时会出现两管制系统高温环境下，排气过热度高，制冷能力不足的问题。
发明内容
本申请旨在至少解决现有技术中存在的技术问题之一。
本申请的一个方面提供了一种两管制喷气增焓室外机。
本申请的一个方面提供了一种两管制喷气增焓多联机系统。
鉴于上述，本申请提供的一种两管制喷气增焓室外机，两管制喷气增焓室外机包括：室外换热器、第一接口及第二接口；喷气增焓压缩机，包括排气口、回气口和喷射口；换向组件，换向组件的第一端与排气口相接，换向组件的第二端与回气口相接；闪蒸器，包括冷媒入口、出气口及出液口，出气口与喷射口相接，出液口分别与第一接口及室外换热器的入口相接；节流组件，节流组件的一端与冷媒入口相接，另一端与第二接口相接；第一管路，其一端与室外换热器的出口相接，另一端位于节流组件与第二接口之间。
本申请提供的两管制喷气增焓室外机包括室外换热器、第一接口、第二接口、喷气增焓压缩机、换向组件、闪蒸器、节流组件及第一管路，换向组件的第一端与排气口相接，换向组件的第二端与回气口相接，闪蒸器的出气口与喷射口相接，闪蒸器的出液口分别与第一接口及室外换热器的入口相接，闪蒸器的冷媒入口与节流组件的一端相接，节流组件的另一端与第二接口相接，第一管路的一端与室外换热器的出口相接，第一管路的另一端位于节流组件与第二接口之间，本申请通过使用喷气增焓压缩机，从喷气增焓换热器流出的气态制冷剂直接从压缩机的中间喷射口进入压缩机以进行补气增焓压缩，同时增加闪蒸器及节流组件，显著增加低温制热运行时冷媒循环量，在两管制喷气增焓室外机中达到扩展低温制热运行范围，显著提高制热能力，以及达到提升高温制冷 能力降低排气过热度的目的。
此外增加第一管路，使得在制冷、制热、主制冷和主制热四种模式下，均可实现喷气增焓的效果。
闪蒸器是一个可以容纳制冷剂的容器，其通常有三个接口：用于制冷剂气液混合物进入的冷媒入口、制冷剂出气口和制冷剂出液口。其工作原理是：从上游节流元件来的制冷剂的气液混合物从闪蒸器的冷媒入口流入，由于体积突然扩大，大量制冷剂从液态制冷剂中闪发出来，变成温度较低的制冷剂气体，从出气口流出，而没有闪发的液态制冷剂则从出液口流出闪蒸器。以使得闪蒸器的出气口处不夹带任何液滴，出液口处不混有任何气体。
由于闪蒸器的出气口与喷射口相接，因此在喷气增焓时，可以保证出气口排出的冷媒均为气态冷媒，有效地防止了喷气增焓压缩机出现液击的问题，保证了喷气增焓压缩机的使用寿命。
两管制喷气增焓室外机为两管制结构，外机与内机间有两根连接管，即第一接口及第二接口用于与室内机相连接，与相关技术中的三管制多联机系统相比，本申请提供的两管制热回收多联机系统结构简单，节约了铜管材料，降低了安装成本。
此外，本申请提供的两管制喷气增焓室外机应用于两管制喷气增焓多联机系统，并且该多联机系统为热回收多联机，热回收的含义就是回收制冷房间排出的热量用于制热房间制热，具体来说，系统通过室内机换热器从制冷房间吸收热量，然后通过室内机换热器将该热量全部或部分释给制热房间用于制热，系统不足或剩余的热量再通过室外机换热器从环境吸取。而对于普通热泵多联机，制热室内机所需热量全部来自于室外机换热器吸热和耗电。因此，相比普通热泵，热回收多联机具有明显的节能效果。
热回收多联机存在4种运行模式：制冷、主制冷、主制热和制热。当所有运行的室内机都处于制冷/制热模式时，室外机在制冷/制热模式下运行；当运行的室内机既有制冷又有制热且制冷负荷大于制热负荷时，室外机将在主制冷模式下运行；当运行的室内机既有制冷又有制热且制冷负荷小于制热负荷时，室外机将在主制热模式下运行。如果运行制冷室内机和制热室内机的所需的流量刚好相等，则系统以全热回收模式运行。
另外，根据本申请上述技术方案提供的两管制喷气增焓室外机还具有如下附加技术特征：
在上述任一技术方案中，优选地，换向组件的第三端可转换地连接至室外换热器的入口或室外换热器的出口，换向组件的第四端可转换地连接至第二接口或第一接口。
在该技术方案中，换向组件的第三端可转换地连接至室外换热器的入口或室外换热器的出口，换向组件的第四端可转换地连接至第二接口或第一接口，在两管制喷气增焓多联机系统为制冷和主制冷模式时，换向组件的第三端与室外换热器的入口相连，换向组件的第四端与第二接口相连；在两管制喷气增焓多联机系统为制热和主制热模式时，换向组件的第三端与室外换热器的出口相连，换向组件的第四端与第一接口相连，以实现冷媒的不同流向。
在上述任一技术方案中，优选地，两管制喷气增焓室外机包括：第一电磁阀，设置在出气口与喷射口之间，第一电磁阀的导通方向为由出气口至喷射口方向。
在该技术方案中，两管制喷气增焓室外机包括第一电磁阀，第一电磁阀通电导通断电闭合，并且在第一电磁阀通电导通时，第一电磁阀的导通方向为由出气口至喷射口方向，即仅允许冷媒由出气口向喷射口的方向导通，避免出现冷媒回流的现象。
在上述任一技术方案中，优选地，两管制喷气增焓室外机包括：第一单向阀，设置在第一管路上，第一单向阀的导通方向为由室外换热器的出口至节流组件方向。
在该技术方案中，通过增加第一管路，室外换热器出口与节流组件之间连接起来，并在第一管路上设置第一单向阀，室外换热器出口与节流组件之间加第一单向阀，防止制热时室外换热器出口与节流组件之间发生串气，仅允许在制冷和主制冷模式时，由室外换热器的出口流出的冷媒通过第一单向阀流入至节流组件，而在制热和主制热模式时，第一单向阀关闭，使得由室外换热器的出口流出的冷媒无法通过第一管路。
在上述任一技术方案中，优选地，两管制喷气增焓室外机包括：第二单向阀，第二单向阀将第一接口与出液口相连，第二单向阀的导通方向为由出液口至第一接口的方向；第三单向阀，第三单向阀将第二接口与节流组件相连，第三单向阀的导通方向为由第二接口至节流组件的方向。
在该技术方案中，两管制喷气增焓室外机包括第二单向阀，第二单向阀的导通方向为由出液口至第一接口的方向，第二单向阀的一端位于出液口与室外换热器入口之间，第二单向阀的另一端与第一接口相连接。在制冷和主制冷模式时，第二单向阀开启，使得由闪蒸器的出液口流出的冷媒通过第二单向阀流向第一接口。而在制热和主制热模式时，第二单向阀关闭，由闪蒸器的出液口流出的冷媒无法通过第二单向阀，仅可通过室外换热器入口。
进一步地，两管制喷气增焓室外机包括第三单向阀，第三单向阀的导通方向为由第二接口至节流组件的方向。在制热和主制热模式时，第三单向阀开启，由第二接口流出的冷媒通过第三单向阀流向节流组件方向。在制冷和主制冷模式时，第三单向阀关闭，由第一管路流出的冷媒仅能流向节流组件。
在上述任一技术方案中，优选地，两管制喷气增焓室外机包括：第四单向阀，第四单向阀将第二接口与换向组件的第四端相连，第四单向阀的导通方向为由第二接口至换向组件的第四端的方向；第五单向阀，第五单向阀将第一接口与换向组件的第四端相连，第五单向阀的导通方向为由换向组件的第四端至第一接口的方向。
在该技术方案中，两管制喷气增焓室外机包括第四单向阀及第五单向阀，第四单向阀将第二接口与换向组件的第四端相连，并且第四单向阀的导通方向为由第二接口至换向组件的第四端的方向，第五单向阀将第一接口与换向组件的第四端相连，第五单向阀的导通方向为由换向组件的第四端至第一接口的方向，在进行制冷和主制冷模式时，第四单向阀导通、第五单向阀闭合，在进行制热和主制热模式时，第五单向阀导通、第四单向阀闭合。
在上述任一技术方案中，优选地，两管制喷气增焓室外机包括：第六单向阀，第六单向阀将换向组件的第三端与室外换热器的入口相连，第六单向阀的导通方向为由换向组件的第三端至室外换热器的方向；第七单向阀，第七单向阀将换向组件的第三端与室外换热器的出口相连，第七单向阀的导通方向为由室外换热器的出口至换向组件的第三端的方向。
在该技术方案中，两管制喷气增焓室外机包括：第六单向阀和第七单向阀，第六单向阀和第五单向阀均与换向组件的第三端相连，第六单向阀和第七单向阀的另一端则分别与室外换热器的入口及室外换热器的出口相连，在进行制冷和主制冷模式时，第六单向阀导通、第七单向阀闭合，在进行制热和主制热模式时，第七单向阀导通、第六单向阀闭合。
在上述任一技术方案中，优选地，节流组件包括相串联的至少一个节流装置与至少一个第八单向阀，第八单向阀的导通方向为由第二接口至冷媒入口的方向。
在该技术方案中，节流组件包括相串联的至少一个节流装置与至少一个第八单向阀，第八单向阀的导通方向为由过冷器至室外换热器入口的方向，可以为一个节流装置串联一个第八单向阀，或者为一个节流装置串联多个第八单向阀、多个节流装置串联一个第八单向阀，以保证节流降压的效果，并且在多级降压后可以实现更好的降压效果。
在上述任一技术方案中，优选地，两管制喷气增焓室外机包括：第二管路，将排气口与第一接口相连；第二电磁阀，设置在第二管路上，第二电磁阀的导通方向为由排气口至第一接口的方向。
在该技术方案中，两管制喷气增焓室外机包括第二管路及设在第二管路上的第二电磁阀，在进行制冷模式时，第二电磁阀闭合，由排气口排出的冷媒全都通过换向组件的第三端进入室外换热器的入口；在进行主制冷模式，第二电磁阀开启，由排气口排出的冷媒部分通过换向组件的第三端进入室外换热器的入口，另一部分由第二电磁阀进入第一接口，以保证两管制喷气增焓多联机系统可以实现制冷和主制冷两种模式。
在上述任一技术方案中，优选地，两管制喷气增焓室外机包括：第九单向阀，第九单向阀将室外换热器的入口与出液口相连，第九单向阀的导通方向为由出液口至室外换热器的入口的方向。
在该技术方案中，两管制喷气增焓室外机包括第九单向阀，第九单向阀的导通方向为由出液口至室外换热器的入口的方向。在制冷和主制冷模式时，第九单向阀关闭，由闪蒸器的出液口流出的冷媒无法通过第九单向阀进入到室外换热器的入口，只能通过第二单向阀所在管路进入到第一接口。在制热和主制热模式时，第九单向阀开启，由闪蒸器的出液口流出的冷媒通过第九单向阀进入到室外换热器的入口。
根据本申请的一个方面提供了一种两管制喷气增焓多联机系统，两管制喷气增焓多联机系统包括如上述任一技术方案的两管制喷气增焓室外机，因此，该两管制喷气增焓多联机系统具有如上述任一技术方案的两管制喷气增焓室外机的全部有益效果。
根据本申请的附加方面和优点将在下面的描述部分中给出，部分将从下面的描述中 变得明显，或通过本申请的实践了解到。
附图说明
本申请的上述和/或附加的方面和优点从结合下面附图对实施例的描述中将变得明显和容易理解，其中：
图1示出了本申请的一个实施例提供的两管制喷气增焓多联机系统的一个结构示意图；
图2示出了本申请的一个实施例提供的两管制喷气增焓多联机系统的又一结构示意图；
图3示出了本申请的一个实施例提供的两管制喷气增焓多联机系统在制冷模式时的结构示意图；
图4示出了本申请的一个实施例提供的两管制喷气增焓多联机系统在制热模式时的结构示意图；
图5示出了本申请的一个实施例提供的两管制喷气增焓多联机系统在主制冷模式时的结构示意图；
图6示出了本申请的一个实施例提供的两管制喷气增焓多联机系统在主制热模式时的结构示意图；
图7示出了本申请的一个实施例提供的两管制喷气增焓多联机系统的压焓图。
附图标记：
其中，图1至图6中附图标记与部件名称之间的对应关系为：
10室外换热器，12第一接口，14第二接口，16喷气增焓压缩机，162排气口，164回气口，166喷射口，18换向组件，20闪蒸器，202冷媒入口，204出气口，206出液口，22节流组件，222节流装置，224第八单向阀，24第一管路，26第一电磁阀，28第一单向阀，30第二单向阀，32第三单向阀，34第四单向阀，36第五单向阀，38第六单向阀，40第七单向阀，42第二电磁阀，44第九单向阀，46两管制喷气增焓室内机，48制冷剂流向切换装置，50气液分离器，52第一过冷器，54第二过冷器。
具体实施方式
为了能够更清楚地理解本申请的上述目的、特征和优点，下面结合附图和具体实施方式对本申请进行进一步的详细描述。需要说明的是，在不冲突的情况下，本申请的实施例及实施例中的特征可以相互组合。
在下面的描述中阐述了很多具体细节以便于充分理解本申请，但是，本申请还可以采用其他不同于在此描述的方式来实施，因此，本申请的保护范围并不受下面公开的具体实施例的限制。
下面参照图1至图7来描述根据本申请的一个实施例提供的两管制喷气增焓室外机及两管制喷气增焓多联机系统。
如图1至图6所示，本申请提供的一种两管制喷气增焓室外机，两管制喷气增焓室外机包括：室外换热器10、第一接口12及第二接口14；喷气增焓压缩机16，包括排气口162、回气口164和喷射口166；换向组件18，包括第一端至第四端，换向组件18的第一端与排气口162相接，换向组件18的第二端与回气口164相接；闪蒸器20，包括冷媒入口202、出气口204及出液口206，出气口204与喷射口166相接，出液口206分别与第一接口12及室外换热器10的入口相接；节流组件22，节流组件22的一端与冷媒入口202相接，另一端与第二接口14相接；第一管路24，其一端与室外换热器10的出口相接，另一端位于节流组件22与第二接口14之间。
本申请提供的两管制喷气增焓室外机包括室外换热器10、第一接口12、第二接口14、喷气增焓压缩机16、换向组件18、闪蒸器20、节流组件22及第一管路24，换向组件18的第一端与排气口162相接，换向组件18的第二端与回气口164相接，闪蒸器20的出气口204与喷射口166相接，闪蒸器20的出液口206分别与第一接口12及室外换热器10的入口相接，闪蒸器20的冷媒入口202与节流组件22的一端相接，节流组件22的另一端与第二接口14相接，第一管路24的一端与室外换热器10的出口相接，第一管路24的另一端位于节流组件22与第二接口14之间，本申请通过使用喷气增焓压缩机16，从喷气增焓换热器流出的气态制冷剂直接从压缩机的中间喷射口166进入压缩机以进行补气增焓压缩，同时增加闪蒸器20及节流组件22，显著增加低温制热运行时冷媒循环量，在两管制喷气增焓室外机中达到扩展低温制热运行范围，显著提高制热能力，以及达到提升高温制冷能力降低排气过热度的目的。
此外增加第一管路24，使得在制冷、制热、主制冷和主制热四种模式下，均可实现喷气增焓的效果。
闪蒸器20是一个可以容纳制冷剂的容器，其通常有三个接口：用于制冷剂气液混合物进入的冷媒入口202、制冷剂出气口204和制冷剂出液口206。其工作原理是：从上游节流元件来的制冷剂的气液混合物从闪蒸器20的冷媒入口202流入，由于体积突然扩大，大量制冷剂从液态制冷剂中闪发出来，变成温度较低的制冷剂气体，从出气口204流出，而没有闪发的液态制冷剂则从出液口206流出闪蒸器20。以使得闪蒸器20的出气口204处不夹带任何液滴，出液口206处不混有任何气体。
由于闪蒸器20的出气口204与喷射口166相接，因此在喷气增焓时，可以保证出气口204排出的冷媒均为气态冷媒，有效地防止了喷气增焓压缩机16出现液击的问题，保证了喷气增焓压缩机16的使用寿命。
两管制喷气增焓室外机为两管制结构，外机与内机间有两根连接管，即第一接口12及第二接口14用于与室内机相连接，与相关技术中的三管制多联机系统相比，本申请提供的两管制热回收多联机系统结构简单，节约了铜管材料，降低了安装成本。
此外，本申请提供的两管制喷气增焓室外机应用于两管制喷气增焓多联机系统，并且该多联机系统为热回收多联机，热回收的含义就是回收制冷房间排出的热量用于制热房间制热，具体来说，系统通过室内机换热器从制冷房间吸收热量，然后通过室内机换热器将该 热量全部或部分释给制热房间用于制热，系统不足或剩余的热量再通过室外机换热器从环境吸取。而对于普通热泵多联机，制热室内机所需热量全部来自于室外机换热器吸热和耗电。因此，相比普通热泵，热回收多联机具有明显的节能效果。
热回收多联机存在4种运行模式：制冷、主制冷、主制热和制热。当所有运行的室内机都处于制冷/制热模式时，室外机在制冷/制热模式下运行；当运行的室内机既有制冷又有制热且制冷负荷大于制热负荷时，室外机将在主制冷模式下运行；当运行的室内机既有制冷又有制热且制冷负荷小于制热负荷时，室外机将在主制热模式下运行。如果运行制冷室内机和制热室内机的所需的流量刚好相等，则系统以全热回收模式运行。
在本申请提供的一个实施例中，优选地，换向组件18的第三端可转换地连接至室外换热器10的入口或室外换热器10的出口，换向组件18的第四端可转换地连接至第二接口14或第一接口12。
在该实施例中，换向组件18的第三端可转换地连接至室外换热器10的入口或室外换热器10的出口，换向组件18的第四端可转换地连接至第二接口14或第一接口12，在两管制喷气增焓多联机系统为制冷和主制冷模式时，换向组件18的第三端与室外换热器10的入口相连，换向组件18的第四端与第二接口14相连；在两管制喷气增焓多联机系统为制热和主制热模式时，换向组件18的第三端与室外换热器10的出口相连，换向组件18的第四端与第一接口12相连，以实现冷媒的不同流向。
在本申请提供的一个实施例中，优选地，两管制喷气增焓室外机包括：第一电磁阀26，设置在出气口204与喷射口166之间，第一电磁阀26的导通方向为由出气口204至喷射口166方向。
在该实施例中，两管制喷气增焓室外机包括第一电磁阀26，第一电磁阀26通电导通断电闭合，并且在第一电磁阀26通电导通时，第一电磁阀26的导通方向为由出气口204至喷射口166方向，即仅允许冷媒由出气口204向喷射口166的方向导通，避免出现冷媒回流的现象。
在本申请提供的一个实施例中，优选地，两管制喷气增焓室外机包括：第一单向阀28，设置在第一管路24上，第一单向阀28的导通方向为由室外换热器10的出口至节流组件22方向。
在该实施例中，通过增加第一管路24，室外换热器10出口与节流组件22之间连接起来，并在第一管路24上设置第一单向阀28，室外换热器10出口与节流组件22之间加第一单向阀28，防止制热时室外换热器10出口与节流组件22之间发生串气，仅允许在制冷和主制冷模式时，由室外换热器10的出口流出的冷媒通过第一单向阀28流入至节流组件22，而在制热和主制热模式时，第一单向阀28关闭，使得由室外换热器10的出口流出的冷媒无法通过第一管路24。
在本申请提供的一个实施例中，优选地，两管制喷气增焓室外机包括：第二单向阀30，第二单向阀30将第一接口12与出液口206相连，第二单向阀30的导通方向为由出液口206至第一接口12的方向；第三单向阀32，第三单向阀32将第二接口14与节流组件22相连， 第三单向阀32的导通方向为由第二接口14至节流组件22的方向。
在该实施例中，两管制喷气增焓室外机包括第二单向阀30，第二单向阀30的导通方向为由出液口206至第一接口12的方向，第二单向阀30的一端位于出液口206与室外换热器10入口之间，第二单向阀30的另一端与第一接口12相连接。在制冷和主制冷模式时，第二单向阀30开启，使得由闪蒸器20的出液口206流出的冷媒通过第二单向阀30流向第一接口12。而在制热和主制热模式时，第二单向阀30关闭，由闪蒸器20的出液口206流出的冷媒无法通过第二单向阀30，仅可通过室外换热器10入口。
进一步地，两管制喷气增焓室外机包括第三单向阀32，第三单向阀32的导通方向为由第二接口14至节流组件22的方向。在制热和主制热模式时，第三单向阀32开启，由第二接口14流出的冷媒通过第三单向阀32流向节流组件22方向。在制冷和主制冷模式时，第三单向阀32关闭，由第一管路24流出的冷媒仅能流向节流组件22。
在本申请提供的一个实施例中，优选地，两管制喷气增焓室外机包括：第四单向阀34，第四单向阀34将第二接口14与换向组件18的第四端相连，第四单向阀34的导通方向为由第二接口14至换向组件18的第四端的方向；第五单向阀36，第五单向阀36将第一接口12与换向组件18的第四端相连，第五单向阀36的导通方向为由换向组件18的第四端至第一接口12的方向。
在该实施例中，两管制喷气增焓室外机包括第四单向阀34及第五单向阀36，第四单向阀34将第二接口14与换向组件18的第四端相连，并且第四单向阀34的导通方向为由第二接口14至换向组件18的第四端的方向，第五单向阀36将第一接口12与换向组件18的第四端相连，第五单向阀36的导通方向为由换向组件18的第四端至第一接口12的方向，在进行制冷和主制冷模式时，第四单向阀34导通、第五单向阀36闭合，在进行制热和主制热模式时，第五单向阀36导通、第四单向阀34闭合。
在本申请提供的一个实施例中，优选地，两管制喷气增焓室外机包括：第六单向阀38，第六单向阀38将换向组件18的第三端与室外换热器10的入口相连，第六单向阀38的导通方向为由换向组件18的第三端至室外换热器10的方向；第七单向阀40，第七单向阀40将换向组件18的第三端与室外换热器10的出口相连，第七单向阀40的导通方向为由室外换热器10的出口至换向组件18的第三端的方向。
在该实施例中，两管制喷气增焓室外机包括：第六单向阀38和第七单向阀40，第六单向阀38和第五单向阀36均与换向组件18的第三端相连，第六单向阀38和第七单向阀40的另一端则分别与室外换热器10的入口及室外换热器10的出口相连，在进行制冷和主制冷模式时，第六单向阀38导通、第七单向阀40闭合，在进行制热和主制热模式时，第七单向阀40导通、第六单向阀38闭合。
在本申请提供的一个实施例中，优选地，节流组件22包括相串联的至少一个节流装置222与至少一个第八单向阀224，第八单向阀224的导通方向为由第二接口14至冷媒入口202的方向。
在该实施例中，节流组件22包括相串联的至少一个节流装置222与至少一个第八单向 阀224，第八单向阀224的导通方向为由过冷器至室外换热器10入口的方向，可以为一个节流装置222串联一个第八单向阀224，或者为一个节流装置222串联多个第八单向阀224、多个节流装置222串联一个第八单向阀224，以保证节流降压的效果，并且在多级降压后可以实现更好的降压效果。
在本申请提供的一个实施例中，优选地，两管制喷气增焓室外机包括：第二管路，将排气口162与第一接口12相连；第二电磁阀42，设置在第二管路上，第二电磁阀42的导通方向为由排气口162至第一接口12的方向。
在该实施例中，两管制喷气增焓室外机包括第二管路及设在第二管路上的第二电磁阀42，在进行制冷模式时，第二电磁阀42闭合，由排气口162排出的冷媒全都通过换向组件18的第三端进入室外换热器10的入口；在进行主制冷模式，第二电磁阀42开启，由排气口162排出的冷媒部分通过换向组件18的第三端进入室外换热器10的入口，另一部分由第二电磁阀42进入第一接口12，以保证两管制喷气增焓多联机系统可以实现制冷和主制冷两种模式。
在本申请提供的一个实施例中，优选地，两管制喷气增焓室外机包括：第九单向阀44，第九单向阀44将室外换热器10的入口与出液口206相连，第九单向阀44的导通方向为由出液口206至室外换热器10的入口的方向。
在该实施例中，两管制喷气增焓室外机包括第九单向阀44，第九单向阀44的导通方向为由出液口206至室外换热器10的入口的方向。在制冷和主制冷模式时，第九单向阀44关闭，由闪蒸器20的出液口206流出的冷媒无法通过第九单向阀44进入到室外换热器10的入口，只能通过第二单向阀30所在管路进入到第一接口12。在制热和主制热模式时，第九单向阀44开启，由闪蒸器20的出液口206流出的冷媒通过第九单向阀44进入到室外换热器10的入口。
根据本申请的一个方面提供了一种两管制喷气增焓多联机系统，两管制喷气增焓多联机系统包括如上述任一实施例的两管制喷气增焓室外机，因此，该两管制喷气增焓多联机系统具有如上述任一实施例的两管制喷气增焓室外机的全部有益效果。
两管制喷气增焓多联机系统包括制冷剂流向切换装置48，制冷剂流向切换装置48包括气液分离器50用于气液两相制冷剂分流，板式换热器用于获得液态制冷剂过冷度，多组电磁阀用于切换制冷剂流向。
如图3所示，制冷时，高温高压的气态冷媒从喷气增焓压缩机16出来经过换向组件18和第六单向阀38先经过室外换热器10冷凝，冷凝成高压液态冷媒，一部分经过节流组件22，节流降压成两相冷媒进入闪蒸器20，气态冷媒经过第一电磁阀26进入喷气增焓压缩机16的喷射口166，另一部分液态冷媒经过第二单向阀30到达第一接口12(输出管)进入制冷剂流向切换装置48的气液分离器50入口。
如图4所示，制热时，高温高压的气体冷媒从喷气增焓压缩机16出来，经过分别经过第二电磁阀42和换向组件18及第五单向阀36两路到高压阀，再从高压阀通过第一接口12(外机输出管)流到制冷剂流向切换装置48入口，进入气液分离器50，从气液分离器50 气侧出口经过制热电磁阀从气管进入两管制喷气增焓室内机46，在两管制喷气增焓室内机46被冷凝成高压液态冷媒后，流过内机电子膨胀阀，变成高压两相冷媒，流过制冷剂流向切换装置48的节流元件(开度维持全开，尽量减少阻力)回到第二接口14(外机输入管)经过低压阀进入两管制喷气增焓室外机，经过第三单向阀32后先经过外机主节流组件22进入闪蒸器20入口，冷媒从出液口206，出来后，一部分液态冷媒进入室外换热器10吸热，然后经过换向组件18回到低压罐，随后进入喷气增焓压缩机16的回气口164；另外一部分气态冷媒从闪蒸器20的出气口204出来后进入经过第一电磁阀26进入喷气增焓压缩机16的压缩腔。
如图5所示，主制冷时，高温高压的气态冷媒从喷气增焓压缩机16出来一部分经过换向组件18和第六单向阀38先经过室外换热器10冷凝，冷凝成的高压液态冷媒，一部分经过节流组件22，节流降压成两相冷媒进入闪蒸器20，气态冷媒经过第一电磁阀26进入喷气增焓压缩机16的喷射口166，另一部分液态冷媒经过第二单向阀30到达第一接口12，与从喷气增焓压缩机16出来经过第二电磁阀42的另外一部分高温高压气态冷媒混合成高温高压两相冷媒进入制冷剂流向切换装置48的气液分离器50入口。气态冷媒从气侧出口出来流过制热电磁阀，进入制热的两管制喷气增焓室内机46的气管，到制热的两管制喷气增焓室内机46冷凝，经过两管制喷气增焓室内机46节流元件后回到冷媒分配装置的第二过冷器54入口，与从气液分离器50液侧出口出来的液态冷媒经过第一过冷器52过冷后的液态冷媒混合后，经第二过冷器54进一步过冷后，进入制冷的两管制喷气增焓室内机46，经过制冷的两管制喷气增焓室内机46节流元件降压后在制冷的两管制喷气增焓室内机46蒸发吸热，变成低压气态冷媒后经制冷电磁阀回到两管制喷气增焓室外机的第二接口14。经过第四单向阀34和换向组件18回到低压罐ACC，然后回到喷气增焓压缩机16的回气口164。
如图6所示，主制热时，高温高压的气体冷媒从喷气增焓压缩机16出来，经过分别经过第二电磁阀42和换向组件18及第五单向阀36两路到高压阀，再从高压阀通过第一接口12流到制冷剂流向切换装置48的入口，进入气液分离器50。高压气态冷媒从气液分离器50气侧出口经过制热电磁阀从气管进入制热的两管制喷气增焓室内机46，冷凝后的高压液冷媒经过两管制喷气增焓室内机46电子膨胀阀后流回冷媒分配装置第二过冷器54入口，从第二过冷器54出来后变成高压液态冷媒经过制冷单向阀进入制冷的两管制喷气增焓室内机46，通过电子膨胀阀节流后变成中压两相冷媒进入两管制喷气增焓室内机46蒸发吸热，变成中压气态冷媒后在低压管与从冷媒分配装置节流元件流过的中压两相态冷媒汇合，经过第二接口14回到两管制喷气增焓室外机。通过第三单向阀32再经过节流组件22节流降压，进入闪蒸器20入口，其中液态冷媒从出液口206流出，经第九单向阀44进入室外换热器10蒸发吸热，再流经换向组件18进入低压罐，然后回到喷气增焓压缩机16的回气口164。气态冷媒则从闪蒸器20的出气口204流出经过第一电磁阀26进入喷气增焓压缩机16的喷射口166。
如图7所示，制冷时，两管制喷气增焓多联机系统因为增加了焓差(h A-J＞h A-J’)，可以 用更小的冷媒循环量实现相同的能力，因此喷气增焓压缩机16频率可以更低，做功更少，从而提高能效。另外因为两管制喷气增焓多联机系统降低了排气过热度(SH＜SH’)，高温制冷时，喷焓可以增加冷媒循环量而提高制冷能力。
在本说明书的描述中，术语“上”、“下”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制；术语“连接”、“安装”、“固定”等均应做广义理解，例如，“连接”可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本说明书的描述中，术语“一个实施例”、“一些实施例”、“具体实施例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或特点包含于本申请的至少一个实施例或示例中。在本说明书中，对上述术语的示意性表述不一定指的是相同的实施例或实例。而且，描述的具体特征、结构、材料或特点可以在任何的一个或多个实施例或示例中以合适的方式结合。
以上仅为本申请的优选实施例而已，并不用于限制本申请，对于本领域的技术人员来说，本申请可以有各种更改和变化。凡在本申请的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本申请的保护范围之内。

Claims (11)

  1. 一种两管制喷气增焓室外机，其特征在于，所述两管制喷气增焓室外机包括：
    室外换热器、第一接口及第二接口；
    喷气增焓压缩机，包括排气口、回气口和喷射口；
    换向组件，所述换向组件的第一端与所述排气口相接，所述换向组件的第二端与所述回气口相接；
    闪蒸器，包括冷媒入口、出气口及出液口，所述出气口与所述喷射口相接，所述出液口分别与所述第一接口及所述室外换热器的入口相接；
    节流组件，所述节流组件的一端与所述冷媒入口相接，另一端与所述第二接口相接；
    第一管路，其一端与所述室外换热器的出口相接，另一端位于所述节流组件与所述第二接口之间。
  2. 根据权利要求1所述的两管制喷气增焓室外机，其特征在于，
    所述换向组件的第三端可转换地连接至所述室外换热器的入口或所述室外换热器的出口，所述换向组件的第四端可转换地连接至所述第二接口或所述第一接口。
  3. 根据权利要求1-2中任一项所述的两管制喷气增焓室外机，其特征在于，所述两管制喷气增焓室外机包括：
    第一电磁阀，设置在所述出气口与所述喷射口之间，所述第一电磁阀的导通方向为由所述出气口至所述喷射口方向。
  4. 根据权利要求1-3中任一项所述的两管制喷气增焓室外机，其特征在于，所述两管制喷气增焓室外机包括：
    第一单向阀，设置在所述第一管路上，所述第一单向阀的导通方向为由所述室外换热器的出口至所述节流组件方向。
  5. 根据权利要求1至4中任一项所述的两管制喷气增焓室外机，其特征在于，所述两管制喷气增焓室外机包括：
    第二单向阀，所述第二单向阀将所述第一接口与所述出液口相连，所述第二单向阀的导通方向为由所述出液口至所述第一接口的方向；
    第三单向阀，所述第三单向阀将所述第二接口与所述节流组件相连，所述第三单向阀的导通方向为由所述第二接口至所述节流组件的方向。
  6. 根据权利要求1至5中任一项所述的两管制喷气增焓室外机，其特征在于，所述两管制喷气增焓室外机包括：
    第四单向阀，所述第四单向阀将所述第二接口与所述换向组件的第四端相连，所述第四单向阀的导通方向为由所述第二接口至所述换向组件的第四端的方向；
    第五单向阀，所述第五单向阀将所述第一接口与所述换向组件的第四端相连，所述第五单向阀的导通方向为由所述换向组件的第四端至所述第一接口的方向。
  7. 根据权利要求1至6中任一项所述的两管制喷气增焓室外机，其特征在于，所述两管制喷气增焓室外机包括：
    第六单向阀，所述第六单向阀将所述换向组件的第三端与所述室外换热器的入口相连，所述第六单向阀的导通方向为由所述换向组件的第三端至所述室外换热器的方向；
    第七单向阀，所述第七单向阀将所述换向组件的第三端与所述室外换热器的出口相连，所述第七单向阀的导通方向为由所述室外换热器的出口至所述换向组件的第三端的方向。
  8. 根据权利要求1至7中任一项所述的两管制喷气增焓室外机，其特征在于，
    所述节流组件包括相串联的至少一个节流装置与至少一个第八单向阀，所述第八单向阀的导通方向为由所述第二接口至所述冷媒入口的方向。
  9. 根据权利要求1至8中任一项所述的两管制喷气增焓室外机，其特征在于，所述两管制喷气增焓室外机包括：
    第二管路，将所述排气口与所述第一接口相连；
    第二电磁阀，设置在所述第二管路上，所述第二电磁阀的导通方向为由所述排气口至所述第一接口的方向。
  10. 根据权利要求1至9中任一项所述的两管制喷气增焓室外机，其特征在于，所述两管制喷气增焓室外机包括：
    第九单向阀，所述第九单向阀将所述室外换热器的入口与所述出液口相连，所述第九单向阀的导通方向为由所述出液口至所述室外换热器的入口的方向。
  11. 一种两管制喷气增焓多联机系统，其特征在于，所述两管制喷气增焓多联机系统包括如权利要求1至10中任一项所述的两管制喷气增焓室外机。
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