WO2020156101A1 - 一种制冷剂分配调节装置、空调系统和空调系统控制方法 - Google Patents

一种制冷剂分配调节装置、空调系统和空调系统控制方法 Download PDF

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Publication number
WO2020156101A1
WO2020156101A1 PCT/CN2020/071416 CN2020071416W WO2020156101A1 WO 2020156101 A1 WO2020156101 A1 WO 2020156101A1 CN 2020071416 W CN2020071416 W CN 2020071416W WO 2020156101 A1 WO2020156101 A1 WO 2020156101A1
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WIPO (PCT)
Prior art keywords
flow channel
conditioning system
interface
air
supply device
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.)
Ceased
Application number
PCT/CN2020/071416
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English (en)
French (fr)
Inventor
吴志刚
王嘉贝
范波
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Hitachi Johnson Controls Air Conditioning Inc
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Hitachi Johnson Controls Air Conditioning Inc
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Publication of WO2020156101A1 publication Critical patent/WO2020156101A1/zh
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    • 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
    • F25B9/00Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • F25B9/006Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant the refrigerant containing more than one component
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/20Disposition of valves, e.g. of on-off valves or flow control valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/65Electronic processing for selecting an operating mode
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/70Control systems characterised by their outputs; Constructional details thereof
    • 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
    • F25B40/00Subcoolers, desuperheaters or superheaters
    • F25B40/02Subcoolers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • 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
    • F25B49/00Arrangement or mounting of control or safety devices
    • F25B49/02Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F25B9/00Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • 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
    • F25B2600/00Control issues
    • F25B2600/25Control of valves
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00Control issues
    • F25B2600/25Control of valves
    • F25B2600/2519On-off valves

Definitions

  • the present disclosure relates to the field of air conditioning technology, and in particular to a refrigerant distribution adjustment device, an air conditioning system, and an air conditioning system control method.
  • the amount of refrigerant in the air-conditioning system directly affects the performance of the air-conditioning system, and the air-conditioning system requires different amounts of refrigerant under different working conditions.
  • the amount of refrigerant required by the air conditioning system is less than that required under standard refrigeration conditions.
  • the amount of refrigerant in the existing air-conditioning system is generally a constant value. Excess refrigerant will limit the capacity of the unit under high temperature cooling conditions, and reducing the amount of refrigerant alone will affect the energy efficiency of the unit under standard cooling conditions. It can be seen that the existing air conditioning system has a technical problem that the amount of refrigerant cannot be adjusted according to the working conditions.
  • the embodiments of the present disclosure provide a refrigerant distribution adjustment device, an air conditioning system, and an air conditioning system control method, so as to solve the technical problem of the existing air conditioning system that the amount of refrigerant cannot be adjusted according to operating conditions.
  • embodiments of the present disclosure provide a refrigerant distribution adjustment device, which is applied to an air conditioning system, and the device includes:
  • the refrigerant distribution unit includes a first flow channel and a second flow channel, the volume of the first flow channel is greater than the volume of the second flow channel;
  • the flow channel switching unit is connected to the first flow channel and the second flow channel respectively, and the flow channel switching unit is also used to connect to the first medium supply device and the second flow channel of the air conditioning system respectively.
  • the flow channel switching unit can be switched between a first state and a second state
  • the first flow path is used to communicate with the first medium providing device and the indoor heat exchange unit
  • the second flow path is used to communicate with the second medium providing device and the indoor heat exchange unit.
  • the compressor unit is connected;
  • the first flow path is used to communicate with the second medium supply device and the compressor unit, and the second flow path is connected to the first medium supply device and the indoor heat exchange unit Connected
  • the first medium is a liquid phase refrigerant
  • the second medium is a gas-liquid two-phase refrigerant
  • the first flow channel is provided with a first interface and a second interface
  • the second flow channel is provided with a third interface and a fourth interface
  • the flow channel switching unit is respectively connected to the first interface, the second interface, the third interface and the fourth interface;
  • the first interface is used to communicate with the first medium providing device
  • the second interface is used to communicate with the indoor heat exchange unit
  • the third interface is used to communicate with the indoor heat exchange unit.
  • the second medium providing device is in communication
  • the fourth interface is used to communicate with the compressor unit;
  • the first interface is used to communicate with the second medium supply device
  • the second interface is used to communicate with the compressor unit
  • the third interface is used to communicate with the The first medium providing device is in communication
  • the fourth interface is used to communicate with the indoor heat exchange unit.
  • the flow channel switching unit includes a first flow channel switching mechanism and a second flow channel switching mechanism
  • the first flow channel switching mechanism is respectively connected to the first interface and the third interface, and the first flow channel switching mechanism is also used to respectively connect to the first medium supply device and the second medium supply device ;
  • the second flow path switching mechanism is respectively connected to the second interface and the fourth interface, and the second flow path switching mechanism is also used to respectively connect to the indoor heat exchange unit and the compressor unit.
  • the first flow passage switching mechanism is a first four-way valve
  • the second flow passage switching mechanism is a second four-way valve
  • the first flow path switching mechanism includes a first solenoid valve, a second solenoid valve, a first check valve, a second check valve, and a three-way valve.
  • the second flow path switching mechanism is a third four-way valve; A solenoid valve and the second solenoid valve are respectively used to connect to the first medium supply device, and the first check valve and the second check valve are respectively used to connect to the second medium supply device.
  • the first solenoid valve is connected to the first check valve and the third interface through the three-way valve, and the second solenoid valve is connected to the second check valve and the first Interface connection.
  • the flow channel switching unit is an eight-way valve integrating two four-way valves.
  • the first flow channel is in contact with the second flow channel, so that the medium in the first flow channel exchanges heat with the medium in the second flow channel.
  • the first flow channel is nested with the second flow channel.
  • the first flow channel and the second flow channel are sleeved coaxially.
  • the first flow channel does not contact the second flow channel.
  • embodiments of the present disclosure provide an air conditioning system, including: a first medium supply device, a second medium supply device, a compressor unit, an indoor heat exchange unit, and the refrigerant according to any one of the first aspect Distribution adjustment device;
  • the flow channel switching unit is respectively connected with the first medium supply device, the second medium supply device, the indoor heat exchange unit and the compressor unit;
  • the first flow passage is in communication with the first medium supply device and the indoor heat exchange unit, and the second flow passage is in communication with the second medium supply device and the compressor unit;
  • the first flow passage is in communication with the second medium supply device and the compressor unit, and the second flow passage is in communication with the first medium supply device and the indoor heat exchange unit.
  • the first medium supply device is connected to the second medium supply device, the first medium supply device is a condenser of the air conditioning system, and the second medium supply device is the air conditioner The throttle of the system.
  • the first flow channel is in contact with the second flow channel
  • the refrigerant distribution unit of the refrigerant distribution adjustment device is a subcooler of the air conditioning system.
  • an embodiment of the present disclosure provides an air-conditioning system control method, which is applied to the air-conditioning system according to any one of the second aspects, and the method includes:
  • the state of the flow channel switching unit of the air conditioning system is controlled.
  • controlling the state of the flow channel switching unit of the air conditioning system according to the working conditions of the air conditioning system includes:
  • the ambient temperature corresponding to the first cooling condition is greater than a temperature threshold, and the ambient temperature corresponding to the second cooling condition is less than or equal to the temperature threshold.
  • the method further includes:
  • the flow channel switching unit of the air-conditioning system is controlled to switch from the second state to the first state.
  • embodiments of the present disclosure provide another air-conditioning system, the air-conditioning system is the air-conditioning system according to any one of the second aspects, the air-conditioning system includes an execution module, and the execution module is used for:
  • the state of the flow channel switching unit of the air conditioning system is controlled.
  • the execution module is specifically configured to:
  • the ambient temperature corresponding to the first cooling condition is greater than a temperature threshold, and the ambient temperature corresponding to the second cooling condition is less than or equal to the temperature threshold.
  • the execution module is also used to:
  • the flow channel switching unit of the air-conditioning system is controlled to switch from the second state to the first state.
  • an embodiment of the present disclosure provides another air-conditioning system, the air-conditioning system is the air-conditioning system according to any one of the second aspects, and the air-conditioning system includes: a memory, a processor, and storage in the memory A computer program that can be run on the processor, and when the computer program is executed by the processor, the steps in the air conditioning system control method of any one of the third aspect are implemented.
  • embodiments of the present disclosure provide a computer-readable storage medium having a computer program stored on the computer-readable storage medium, and when the computer program is executed by a processor, the computer program implements any one of the third aspect The steps of the air conditioning system control method.
  • the difference in the volume of the two flow channels can be used to adjust the amount of refrigerant, so that when the air conditioning system is working under different working conditions, Control the state of the flow channel switching unit to realize the switching of the refrigerant flow channel, thereby realizing the adjustment of the refrigerant amount.
  • the embodiment of the present disclosure effectively solves the contradiction between the different required refrigerant amount and the inability to adjust the refrigerant amount under different working conditions of the existing air-conditioning system, and improves the working performance of the air-conditioning system.
  • 1 to 2 are schematic diagrams of the refrigerant distribution unit provided by the embodiments of the disclosure in the second state and the first state, respectively;
  • 3 to 4 are schematic diagrams of a refrigerant distribution adjusting device provided by an embodiment of the disclosure in a second state and a first state;
  • FIGS. 5 to 6 are schematic diagrams of another refrigerant distribution adjusting device provided by an embodiment of the disclosure in a second state and a first state;
  • FIG. 12 is a structural diagram of an air conditioning system provided by an embodiment of the disclosure.
  • FIG. 13 is a structural diagram of another air conditioning system provided by an embodiment of the disclosure.
  • embodiments of the present disclosure provide a refrigerant distribution adjustment device, which is applied to an air conditioning system, and the refrigerant distribution adjustment device includes:
  • the refrigerant distribution unit 1 includes a first flow channel 11 and a second flow channel 12, and the volume of the first flow channel 11 is greater than the volume of the second flow channel 12;
  • the flow channel switching unit 2 is connected to the first flow channel 11 and the second flow channel 12 respectively, and the flow channel switching unit 2 is also used to connect to the first medium supply device 3 and the second medium supply device of the air conditioning system respectively. 4.
  • the indoor heat exchange unit 5 and the compressor unit 6 are connected;
  • the flow channel switching unit 2 can switch between the first state and the second state
  • the first flow passage 11 is used to communicate with the first medium supply device 3 and the indoor heat exchange unit 5
  • the second flow passage 12 is used to communicate with the second medium supply device 4 and the compressor unit 6 respectively;
  • the first flow passage 11 is used to communicate with the second medium supply device 4 and the compressor unit 6 respectively, and the second flow passage 12 is used to communicate with the first medium supply device 3 and the indoor heat exchange unit 5 respectively;
  • the first medium is a liquid phase refrigerant
  • the second medium is a gas-liquid two-phase refrigerant
  • liquid-phase refrigerants are refrigerants with higher density and higher pressure
  • gas-liquid two-phase refrigerants are refrigerants with lower density and lower pressure
  • the aforementioned first medium providing device 3 is a device for providing a first medium
  • the aforementioned second medium providing device 4 is a device for providing a second medium.
  • the condenser in the air-conditioning system can output high-density and high-pressure liquid refrigerant. After the liquid refrigerant in the condenser is throttled by the throttle, it can form a low-density and low-pressure gas-liquid two-phase refrigerant. Therefore, the condenser in the air conditioning system can be used as the first medium supply device 3, and the throttle in the air conditioning system can be used as the second medium supply device 4, but is not limited to this.
  • the volumes of the first flow passage 11 and the second flow passage 12 can be flexibly set in combination with various working parameters and performance parameters of the air conditioning system under different working conditions.
  • volume of the flow channel in this application refers to the actual volume of the refrigerant passing through the flow channel.
  • the first flow channel 11 is provided with a first interface 111 and a second interface 112, and the second flow channel 12 is provided with a third interface 121 and a fourth interface 122;
  • the flow channel switching unit 2 is connected to the first interface 111, the second interface 112, the third interface 121, and the fourth interface 122 respectively;
  • the first interface 111 is used to communicate with the first medium providing device 3
  • the second interface 112 is used to communicate with the indoor heat exchange unit 5
  • the third interface 121 is used to communicate with the second medium providing device 4.
  • the fourth interface 122 is used to communicate with the compressor unit 6;
  • the first interface 111 is used to communicate with the second medium supply device 4
  • the second interface 112 is used to communicate with the compressor unit 6
  • the third interface 121 is used to communicate with the first medium supply device 3.
  • the four ports 122 are used to communicate with the indoor heat exchange unit 5.
  • the first interface 111 of the first flow channel 11 can be understood as a refrigerant inlet
  • the second interface 112 of the first flow channel 11 can be understood as a refrigerant outlet
  • the third interface 121 of the second flow channel 12 can be understood as a refrigerant inlet
  • the fourth interface 122 of the second flow channel 12 can be understood as a refrigerant outlet.
  • the amount of refrigerant in the air-conditioning system directly affects the performance of the air-conditioning system, and the air-conditioning system requires different amounts of refrigerant under different working conditions.
  • the air conditioning system requires more refrigerant to achieve higher energy efficiency ratios under standard refrigeration conditions.
  • the first medium can flow through the second flow channel 12. Since the volume of the second flow channel 12 is less than or equal to the volume of the first flow channel 11, less first medium can be stored in the second flow channel. Within 12, more of the first medium enters the air conditioning system to run.
  • the air conditioning system needs less refrigerant to make the air conditioner achieve higher capacity in the cooling conditions with high ambient temperature.
  • the first medium can be allowed to flow through the first flow channel 11. Since the volume of the first flow channel 11 is greater than the volume of the second flow channel 12, more first medium can be stored in the first flow channel 11, and Make less of the first medium enter the air conditioning system to run.
  • the flow channel switching unit 2 realizes the switching of the flow channels of the two refrigerant media under the above two working conditions, that is, the flow channel switching unit 2 realizes the switching of the flow directions of the two refrigerant media.
  • the flow channel switching unit 2 In order to realize the circulation of the first medium and the second medium, the flow channel switching unit 2 needs to be connected to the first interface 111, the second interface 112, the third interface 121, and the fourth interface 122 through pipelines, and the flow channel switching unit 2 It also needs to be connected to the first medium supply device 3, the second medium supply device 4, the indoor heat exchange unit 5 and the compressor unit 6 respectively through pipelines.
  • the solid line pipeline is used to indicate the flow direction of the first medium
  • the dotted line pipeline is used to indicate the flow direction of the second medium.
  • Figure 1, Figure 3 and Figure 5 all correspond to the flow of the two refrigerant media when the flow channel switching unit 2 is in the second state.
  • Figures 2, 4 and 6 all correspond to the flow channel switching unit 2 being in the second state. In one state, the circulation of two refrigerant media.
  • the state of the corresponding flow channel switching unit 2 under the standard refrigeration working condition is the second state
  • the state of the corresponding flow channel switching unit 2 under the refrigeration working condition with a high external environment temperature is the first state.
  • the difference in the volume of the two flow channels can be used to adjust the amount of refrigerant, so that when the air conditioning system is working under different working conditions, Control the state of the flow channel switching unit to realize the switching of the refrigerant flow channel, thereby realizing the adjustment of the refrigerant amount.
  • the embodiment of the present disclosure effectively solves the contradiction between the different required refrigerant amount and the inability to adjust the refrigerant amount under different working conditions of the existing air-conditioning system, and improves the working performance of the air-conditioning system.
  • the flow channel switching unit 2 includes a first flow channel switching mechanism 21 and a second flow channel switching mechanism 22;
  • the first flow channel switching mechanism 21 is connected to the first interface 111 and the third interface 121 respectively, and the first flow channel switching mechanism 21 is also used to connect to the first medium supply device 3 and the second medium supply device 4 respectively;
  • the second flow channel switching mechanism 22 is connected to the second interface 112 and the fourth interface 122 respectively, and the second flow channel switching mechanism 22 is also used to connect to the indoor heat exchange unit 5 and the compressor unit 6 respectively.
  • the first flow path switching mechanism 21 is provided before the refrigerant inlet of the refrigerant distribution unit 1, which can be understood as a pre-switching mechanism;
  • the second flow path switching mechanism 22 is provided after the refrigerant outlet of the refrigerant distribution unit 1, and may be It is understood as a rear switching mechanism.
  • the first flow path switching mechanism 21 may be a first four-way valve 211
  • the second flow path switching mechanism 22 may be a second four-way valve 221.
  • Each of the first four-way valve 211 and the second four-way valve 211 has four ports.
  • the port 2111 of the first four-way valve 211 can be connected to the first medium supply device 3 through a pipeline, and the port two 2112 of the first four-way valve 211 can be connected to the second medium supply device 4 through a pipeline.
  • the port three 2113 of the valve 211 may be connected to the first port 111 through a pipeline, and the port two 2114 of the first four-way valve 211 may be connected to the third port 121 through a pipeline.
  • the first port 2211 of the second four-way valve 221 can be connected to the second port 112 through a pipeline, and the second port 2212 of the second four-way valve 221 can be connected to the fourth port 122 through a pipeline.
  • the third port 2213 of the 221 can be connected to the indoor heat exchange unit 5 through a pipeline, and the third port 2214 of the second four-way valve 221 can be connected to the compressor unit 6 through a pipeline.
  • the port two 2112 of the first four-way valve 211 is connected to the port 2112 of the first four-way valve 211.
  • Four 2114 is connected; and through the control of the second four-way valve 221 interface 2211 and the second four-way valve 221 interface three 2213, the second four-way valve 221 interface two 2212 and the second four-way valve 221 interface four If 2214 is connected, the current channel switching unit 2 can be in the first state.
  • the port 2111 of the first four-way valve 211 and the first four-way valve 211 Four 2114 is connected; and through the control of the second four-way valve 221 interface two 2212 and the second four-way valve 221 interface three 2213 communication, the second four-way valve 221 interface 2211 and the second four-way valve 221 interface four If 2214 is connected, the current channel switching unit 2 can be in the second state.
  • the first flow path switching mechanism 21 includes a first solenoid valve 212, a second solenoid valve 213, a first check valve 214, a second check valve 215, and three Through valve 216, and the second flow path switching mechanism 22 is a third four-way valve 222;
  • the first solenoid valve 212 and the second solenoid valve 213 are respectively used to connect to the first medium supply device 3, the first check valve 214 and the second check valve 215 are respectively used to connect to the second medium supply device 4, the first The solenoid valve 212 is connected to the first check valve 214 and the third interface 121 through the three-way valve 216, and the second solenoid valve 213 is connected to the second check valve 215 and the first interface 111, respectively.
  • connection between the components of the first flow path switching mechanism 21 described above can be achieved through pipelines.
  • the third four-way valve 222 has four ports.
  • the first port 2221 of the third four-way valve 222 can be connected to the second port 112 through a pipeline, and the second port 2222 of the third four-way valve 222 can be connected to the fourth port through a pipeline.
  • the interface 122 is connected, the interface three 2223 of the third four-way valve 222 can be connected to the indoor heat exchange unit 5 through a pipeline, and the interface four 2224 of the third four-way valve 222 can be connected to the compressor unit 6 through a pipeline.
  • the second solenoid valve 213 is opened, and the third four-way valve 222 is controlled to connect with the third port 2221 of the third four-way valve 222.
  • the second interface 2222 of the four-way valve 222 is connected to the interface 292224 of the third four-way valve 222, so that the current flow channel switching unit 2 can be in the first state.
  • the second solenoid valve 213 is closed, and by controlling the third four-way valve 222, the second port 2222 communicates with the third port 2223 of the third four-way valve 222.
  • the first port 2221 of the four-way valve 222 is connected to the port 29 2224 of the third four-way valve 222, so that the current flow channel switching unit 2 can be in the second state.
  • the control principle of the second flow path switching mechanism 22, that is, the third four-way valve 222, is not described in detail because it is easy to understand.
  • the control principle of the first flow path switching mechanism 21 will be described in detail below.
  • the first medium provided by the first medium providing device 3 is a high-density and high-pressure liquid refrigerant
  • the second medium provided by the second medium providing device 4 is a low-density and low-pressure gas-liquid two-phase refrigerant.
  • the flow of the refrigerant medium is as follows: the first medium flows through the second solenoid valve 213 to the first interface 111, and the second medium passes through in turn The first check valve 214 and the three-way valve 216 flow to the third port 121.
  • the first medium can flow from the second solenoid valve 213 to the second check valve 215. Since the flow direction of the second check valve 215 is opposite to the flow direction of the first medium, the first medium cannot pass through the second check valve. 215.
  • the second medium flows to the second check valve 215, since the pressure of the first medium is greater than the pressure of the second medium, the pressure difference between the first medium and the second medium prevents the second medium from passing through the second check valve 215. . Therefore, the first medium can only flow to the first port 111 through the second solenoid valve 213, and the second medium can only flow to the third port 121 through the first check valve 214 and the three-way valve 216.
  • the flow direction of the refrigerant medium is as follows: the first medium flows through the first solenoid valve 212 and the three-way valve 216 to the third port 121 in sequence , The second medium flows to the first port 111 through the second check valve 215.
  • the first medium can flow from the three-way valve 216 to the first check valve 214. Since the flow direction of the first check valve 214 is opposite to the flow direction of the first medium, the first medium cannot pass through the first check valve 214 .
  • the second medium flows to the first check valve 214, since the pressure of the first medium is greater than the pressure of the second medium, the pressure difference between the first medium and the second medium prevents the second medium from passing through the first check valve 214. Therefore, the first medium can only flow to the third port 121 through the first solenoid valve 212 and the three-way valve 216, and the second medium can only flow to the first port 111 through the second check valve 215.
  • the flow path switching unit 2 may also be an eight-way valve integrating two four-way valves, and its control method and control principle are basically the same as the implementation of using two independent four-way valves. Please refer to the aforementioned related descriptions. It is easy to understand and easy to implement, which is not described in detail in the embodiments of the present disclosure.
  • flow channel switching unit 2 is only a typical example.
  • other flow channel switching units capable of switching refrigerant flow channels are also applicable to the embodiments of the present disclosure.
  • the refrigerant distribution unit 1 can be arranged in multiple ways, which will be described in detail below.
  • the first flow channel 11 and the second flow channel 12 may be independently arranged, or in other words, the first flow channel 11 and the second flow channel 12 may not be in contact with each other, and the medium in the first flow channel 11 and the second flow channel 11
  • the medium in the channel 12 does not exchange heat; the first flow channel 11 and the second flow channel 12 can also be arranged in contact, and the medium in the first flow channel 11 and the medium in the second flow channel 12 can exchange heat through the contact portion.
  • the refrigerant distribution unit 1 actually serves as a heat exchanger of the first medium and the second medium.
  • first flow channel 11 may be in direct contact with the second flow channel 12, for example, the tube wall of the first flow channel 11 is close to the tube wall of the second flow channel 12, or the first flow channel 11 and the second flow channel 12 have a common The wall of the tube.
  • the first flow channel 11 may also be in indirect contact with the second flow channel 12, for example, a heat conducting member is provided between the first flow channel 11 and the second flow channel 12.
  • the refrigerant distribution unit 1 of the embodiment of the present disclosure can be used as a subcooler in the air conditioning system.
  • the air conditioning system to be equipped with the refrigerant distribution adjustment device can omit the installation of the subcooler, so that the air conditioning system applying the refrigerant distribution adjustment device requires as few additional parts as possible, which can further reduce the required cost. It also makes the structure of the entire air conditioning system simpler.
  • the first flow channel 11 and the second flow channel 12 are nested.
  • first flow passage 11 may be sleeved outside the second flow passage 12 (see FIGS. 1 to 6 ), or the second flow passage 12 may be sleeved outside the first flow passage 11.
  • the contact area between the first flow channel 11 and the second flow channel 12 can be increased, thereby improving the heat exchange efficiency between the first medium and the second medium.
  • the first flow passage 11 and the second flow passage 12 may be sleeved coaxially, or sleeved on different shafts.
  • the heat exchange between the first medium and the second medium is more even.
  • the embodiment of the present disclosure also provides an air conditioning system.
  • the air conditioning system includes: a first medium supply device 3, a second medium supply device 4, a compressor unit 5, an indoor heat exchange unit 6 and any refrigerant distribution in the above-mentioned invention embodiments Adjusting device
  • the flow channel switching unit 2 is respectively connected with the first medium supply device 3, the second medium supply device 4, the indoor heat exchange unit 5 and the compressor unit 6;
  • the first flow passage 11 communicates with the first medium supply device 3 and the indoor heat exchange unit 5, and the second flow passage 12 communicates with the second medium supply device 4 and the compressor unit 6 respectively;
  • the first flow passage 11 communicates with the second medium supply device 4 and the compressor unit 6 respectively, and the second flow passage 12 communicates with the first medium supply device 3 and the indoor heat exchange unit 5 respectively.
  • the first flow channel 11 is provided with a first interface 111 and a second interface 112, and the second flow channel 12 is provided with a third interface 121 and a fourth interface 122;
  • the flow channel switching unit 2 is connected to the first interface 111, the second interface 112, the third interface 121, and the fourth interface 122 respectively;
  • the first interface 111 is in communication with the first medium supply device 3
  • the second interface 112 is in communication with the indoor heat exchange unit 5
  • the third interface 121 is in communication with the second medium supply device 4
  • the fourth interface 122 is in communication with the compressor
  • the machine unit 6 is connected;
  • the first interface 111 communicates with the second medium supply device 4, the second interface 112 communicates with the compressor unit 6, the third interface 121 communicates with the first medium supply device 3, and the fourth interface 122 communicates with the indoor heat
  • the exchange unit 5 is connected.
  • the compressor unit 6 may include a compressor and a gas-liquid separator, and the second interface 112 may be connected to the gas-liquid separator in the compressor unit 6. In this way, the second medium can pass through the gas-liquid separator for gas-liquid separation, and then be transported to the compressor.
  • the first medium supply device 3 is connected to the second medium supply device 4, the first medium supply device 3 is a condenser of the air conditioning system, and the second medium supply device 4 is a throttle of the air conditioning system.
  • the first flow channel 11 is in contact with the second flow channel 12;
  • the refrigerant distribution unit 1 of the refrigerant distribution adjustment device is a subcooler of an air conditioning system.
  • the embodiments of the present disclosure also provide a method for controlling an air conditioning system, which applies any of the air conditioning systems provided in the above-mentioned embodiments of the invention.
  • the air conditioning system control method includes:
  • Step 201 Control the state of the flow channel switching unit of the air conditioning system according to the working conditions of the air conditioning system.
  • the air conditioning system control method of the embodiments of the present disclosure provides a method for adjusting the amount of refrigerant of the air conditioning system according to the working conditions of the air conditioning system.
  • the state of the flow channel switching unit of the air conditioning system is controlled according to the operating conditions of the air conditioning system, so as to realize the adjustment of the amount of refrigerant in the air conditioning system.
  • the above-mentioned control method is suitable for any two working conditions with different refrigerant demand.
  • the above-mentioned control method can be used to adjust the amount of refrigerant under two different cooling conditions, and it can also be used for two different heating conditions.
  • the adjustment of the amount of refrigerant under the condition can also be used for the adjustment of the amount of refrigerant between the cooling mode and the heating mode.
  • the air conditioning system control method includes:
  • Step 201a When the air-conditioning system is working in the first refrigeration working condition, control the flow channel switching unit of the air-conditioning system to be in the first state;
  • Step 201b When the air-conditioning system is working in the second refrigeration working condition, control the flow channel switching unit of the air-conditioning system to be in the second state;
  • the ambient temperature corresponding to the first cooling condition is greater than a temperature threshold, and the ambient temperature corresponding to the second cooling condition is less than or equal to the temperature threshold.
  • the first cooling condition can be understood as a cooling condition with a higher ambient temperature
  • the second cooling condition can be understood as a standard cooling condition
  • the above temperature threshold may be 48°C.
  • the method further includes:
  • Step 202a When the cooling mode of the air conditioning system is switched from the first cooling mode to the second cooling mode, control the flow channel switching unit of the air conditioning system to switch from the first state to the second cooling mode Two states.
  • the method further includes:
  • Step 202b When the cooling mode of the air conditioning system is switched from the second cooling mode to the first cooling mode, control the flow channel switching unit of the air conditioning system to switch from the second state to the first cooling mode One state.
  • the embodiments of the present disclosure also provide an air-conditioning system, which is any air-conditioning system provided in the above-mentioned embodiments of the invention.
  • the air conditioning system 300 includes an execution module 301, and the execution module 301 is used to:
  • the state of the flow channel switching unit of the air conditioning system is controlled.
  • the execution module 301 is specifically used to:
  • the ambient temperature corresponding to the first cooling condition is greater than a temperature threshold, and the ambient temperature corresponding to the second cooling condition is less than or equal to the temperature threshold.
  • the execution module 301 is also used to:
  • the flow channel switching unit of the air-conditioning system is controlled to switch from the second state to the first state.
  • the above-mentioned air-conditioning system 300 in the embodiment of the present disclosure may be the air-conditioning system of any implementation in the method embodiment, and any implementation of the air-conditioning system in the method embodiment can be used by the above-mentioned air-conditioning system 300 in the embodiment of the present disclosure. This is achieved and achieves the same beneficial effects. To avoid repetition, details are not repeated here.
  • the air conditioning system 500 further includes: a processor 501, a memory 502, and a bus interface.
  • the bus architecture may include any number of interconnected buses and bridges. Specifically, one or more processors represented by the processor 501 and various circuits of the memory represented by the memory 502 are linked together.
  • the bus architecture can also link various other circuits such as peripherals, voltage regulators, power management circuits, etc., which are all known in the art, and therefore, no further description will be given herein.
  • the processor 501 is responsible for managing the bus architecture and general processing, and the memory 502 can store data used by the processor 501 when performing operations.
  • the processor 501 is used for:
  • the state of the flow channel switching unit of the air conditioning system is controlled.
  • the processor 501 is configured to: when executing the step of controlling the state of the flow channel switching unit of the air conditioning system according to the working conditions of the air conditioning system:
  • the ambient temperature corresponding to the first cooling condition is greater than a temperature threshold, and the ambient temperature corresponding to the second cooling condition is less than or equal to the temperature threshold.
  • the processor 501 is further configured to:
  • the flow channel switching unit of the air-conditioning system is controlled to switch from the second state to the first state.
  • the above-mentioned air-conditioning system 500 in the embodiment of the present disclosure may be an air-conditioning system of any embodiment in the method embodiment, and any implementation of the air-conditioning system in the method embodiment may be used by the above-mentioned air-conditioning system 500 in the embodiment of the present disclosure. This is achieved and achieves the same beneficial effects. To avoid repetition, details are not repeated here.
  • the embodiments of the present disclosure also provide a computer-readable storage medium, and a computer program is stored on the computer-readable storage medium.
  • a computer program is stored on the computer-readable storage medium.
  • the computer program is executed by a processor, each process of the above-mentioned data offload transmission method corresponding to MN or SN is realized. , And can achieve the same technical effect, in order to avoid repetition, I will not repeat them here.
  • the computer-readable storage medium such as read-only memory (Read-Only Memory, ROM for short), random access memory (Random Access Memory, RAM for short), magnetic disk or optical disk, etc.

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Abstract

一种制冷剂分配调节装置、空调系统和空调系统控制方法,其中,制冷剂分配调节装置包括:制冷剂分配单元(1),包括第一流道(11)和第二流道(12),第一流道(11)的容积大于第二流道(12)的容积;流道切换单元(2),流道切换单元(2)可在第一状态与第二状态之间切换;在第一状态下,第一流道(11)与第一介质提供装置(3)和室内热交换单元(5)连通,第二流道(12)与第二介质提供装置(4)和压缩机单元(6)连通;在第二状态下,第一流道(11)与第二介质提供装置(4)和压缩机单元(6)连通,第二流道(12)与第一介质提供装置(3)和室内热交换单元(5)连通。通过设置两个容积不同的流道以及流道切换单元(2),可以利用两个流道容积的差别实现制冷剂量的调节,从而在空调系统工作于不同工况下时,可以通过控制流道切换单元(2)的状态,实现制冷剂流道的切换,从而实现制冷剂量的调节。

Description

一种制冷剂分配调节装置、空调系统和空调系统控制方法
相关申请的交叉引用
本申请主张在2019年1月31日在中国提交的中国专利申请号No.201910100576.8的优先权,其全部内容通过引用包含于此。
技术领域
本公开涉及空调技术领域,尤其涉及一种制冷剂分配调节装置、空调系统和空调系统控制方法。
背景技术
空调系统中制冷剂量的多少直接影响空调的性能,空调系统在不同的工况下需要不同量的制冷剂。例如,在高温制冷工况下,由于需要维持恒定的压缩机排气压力,空调系统所需要的制冷剂量少于在标准制冷工况下所需的制冷剂量。现有空调系统中制冷剂量一般为恒定值,过量的制冷剂会限制高温制冷工况下机组的能力,而单一地减少制冷剂量又会影响机组在标准制冷工况下的能效表现。可见,现有空调系统存在制冷剂量无法随工况进行调节的技术问题。
发明内容
本公开实施例提供一种制冷剂分配调节装置、空调系统和空调系统控制方法,以解决现有空调系统存在制冷剂量无法随工况进行调节的技术问题。
为了解决上述问题,本公开是这样实现的:
第一方面,本公开实施例提供了一种制冷剂分配调节装置,应用于空调系统,所述装置包括:
制冷剂分配单元,包括第一流道和第二流道,所述第一流道的容积大于所述第二流道的容积;
流道切换单元,所述流道切换单元分别与所述第一流道和所述第二流道连接,所述流道切换单元还用于分别与所述空调系统的第一介质提供装置、 第二介质提供装置、室内热交换单元和压缩机单元连接;
所述流道切换单元可在第一状态与第二状态之间切换;
在所述第一状态下,所述第一流道用于与所述第一介质提供装置和所述室内热交换单元连通,所述第二流道用于与所述第二介质提供装置和所述压缩机单元连通;
在第二状态下,所述第一流道用于与所述第二介质提供装置和所述压缩机单元连通,所述第二流道与所述第一介质提供装置和所述室内热交换单元连通;
其中,所述第一介质为液相制冷剂,所述第二介质为气液两相制冷剂。
在一些实施例中,所述第一流道设置有第一接口和第二接口,所述第二流道设置有第三接口和第四接口;
所述流道切换单元分别与所述第一接口、所述第二接口、所述第三接口和所述第四接口连接;
在所述第一状态下,所述第一接口用于与所述第一介质提供装置连通,所述第二接口用于与所述室内热交换单元连通,所述第三接口用于与所述第二介质提供装置连通,所述第四接口用于与所述压缩机单元连通;
在所述第二状态下,所述第一接口用于与所述第二介质提供装置连通,所述第二接口用于与所述压缩机单元连通,所述第三接口用于与所述第一介质提供装置连通,所述第四接口用于与所述室内热交换单元连通。
在一些实施例中,所述流道切换单元包括第一流道切换机构和第二流道切换机构;
所述第一流道切换机构分别与所述第一接口和所述第三接口连接,所述第一流道切换机构还用于分别与所述第一介质提供装置和所述第二介质提供装置连接;
所述第二流道切换机构分别与所述第二接口和所述第四接口连接,所述第二流道切换机构还用于分别与所述室内热交换单元和所述压缩机单元连接。
在一些实施例中,所述第一流道切换机构为第一四通阀,所述第二流道切换机构为第二四通阀;
或者,
第一流道切换机构包括第一电磁阀、第二电磁阀、第一逆止阀、第二逆止阀和三通阀,所述第二流道切换机构为第三四通阀;所述第一电磁阀和所述第二电磁阀分别用于与所述第一介质提供装置连接,所述第一逆止阀和所述第二逆止阀分别用于与所述第二介质提供装置连接,所述第一电磁阀通过所述三通阀分别与所述第一逆止阀和所述第三接口连接,所述第二电磁阀分别与所述第二逆止阀和所述第一接口连接。
在一些实施例中,所述流道切换单元为集成两个四通阀的八通阀。
在一些实施例中,所述第一流道与所述第二流道相接触,以使所述第一流道内的介质与所述第二流道内的介质进行热交换。
在一些实施例中,所述第一流道与所述第二流道相套设。
在一些实施例中,所述第一流道与所述第二流道同轴套设。
在一些实施例中,所述第一流道与所述第二流道不相接触。
第二方面,本公开实施例提供了一种空调系统,包括:第一介质提供装置、第二介质提供装置、压缩机单元、室内热交换单元和第一方面中任一项所述的制冷剂分配调节装置;
流道切换单元分别与所述第一介质提供装置、所述第二介质提供装置、所述室内热交换单元和所述压缩机单元连接;
在第一状态下,第一流道与所述第一介质提供装置和所述室内热交换单元连通,第二流道与所述第二介质提供装置和所述压缩机单元连通;
在第二状态下,所述第一流道与所述第二介质提供装置和所述压缩机单元连通,所述第二流道与所述第一介质提供装置和所述室内热交换单元连通。
在一些实施例中,所述第一介质提供装置与所述第二介质提供装置连接,所述第一介质提供装置为所述空调系统的冷凝器,所述第二介质提供装置为所述空调系统的节流器。
在一些实施例中,所述第一流道与所述第二流道相接触;
所述制冷剂分配调节装置的制冷剂分配单元为所述空调系统的过冷器。
第三方面,本公开实施例提供了一种空调系统控制方法,应用于第二方面中任一项所述的空调系统,所述方法包括:
根据空调系统的工况,控制所述空调系统的流道切换单元的状态。
在一些实施例中,所述根据空调系统的工况,控制所述空调系统的流道切换单元的状态,包括:
当所述空调系统工作于第一制冷工况时,控制所述空调系统的流道切换单元处于第一状态;
当所述空调系统工作于第二制冷工况时,控制所述空调系统的流道切换单元处于第二状态;
其中,所述第一制冷工况对应的环境温度大于温度阈值,所述第二制冷工况对应的环境温度小于或等于所述温度阈值。
在一些实施例中,所述方法还包括:
当所述空调系统的制冷工况由所述第一制冷工况切换至第二制冷工况时,控制所述空调系统的流道切换单元从所述第一状态切换至所述第二状态;
和/或,
当所述空调系统的制冷工况由所述第二制冷工况切换至第一制冷工况时,控制所述空调系统的流道切换单元从所述第二状态切换至所述第一状态。
第四方面,本公开实施例提供了另一种空调系统,所述空调系统为第二方面中任一项所述的空调系统,所述空调系统包括执行模块,所述执行模块用于:
根据空调系统的工况,控制所述空调系统的流道切换单元的状态。
在一些实施例中,所述执行模块具体用于:
当所述空调系统工作于第一制冷工况时,控制所述空调系统的流道切换单元处于第一状态;
当所述空调系统工作于第二制冷工况时,控制所述空调系统的流道切换单元处于第二状态;
其中,所述第一制冷工况对应的环境温度大于温度阈值,所述第二制冷工况对应的环境温度小于或等于所述温度阈值。
在一些实施例中,所述执行模块还用于:
当所述空调系统的制冷工况由所述第一制冷工况切换至第二制冷工况时,控制所述空调系统的流道切换单元从所述第一状态切换至所述第二状态;
和/或,
当所述空调系统的制冷工况由所述第二制冷工况切换至第一制冷工况时,控制所述空调系统的流道切换单元从所述第二状态切换至所述第一状态。
第五方面,本公开实施例提供了另一种空调系统,所述空调系统为第二方面中任一项所述的空调系统,所述空调系统包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现第三方面中任一项所述的空调系统控制方法中的步骤。
第六方面,本公开实施例提供了一种计算机可读存储介质,所述计算机可读存储介质上存储有计算机程序,所述计算机程序被处理器执行时实现第三方面中任一项所述的空调系统控制方法的步骤。
本公开实施例中,通过设置两个容积不同的流道以及流道切换单元,可以利用两个流道容积的差别实现制冷剂量的调节,从而在空调系统工作于不同工况下时,可以通过控制流道切换单元的状态,实现制冷剂流道的切换,从而实现制冷剂量的调节。本公开实施例有效解决了现有空调系统存在的不同工况下所需制冷剂量不同与制冷剂量无法调节的矛盾,提高了空调系统的工作性能。
附图说明
图1至图2分别为本公开实施例提供的制冷剂分配单元在第二状态、第一状态时的示意图;
图3至图4分别为本公开实施例提供的一种制冷剂分配调节装置在第二状态、第一状态时的示意图;
图5至图6分别为本公开实施例提供的另一种制冷剂分配调节装置在第二状态、第一状态时的示意图;
图7至图11为本公开实施例提供的空调系统控制方法的流程图;
图12为本公开实施例提供的一种空调系统的结构图;
图13为本公开实施例提供的另一种空调系统的结构图。
具体实施方式
下面将结合本公开实施例中的附图,对本公开实施例中的技术方案进行 清楚、完整地描述,显然,所描述的实施例是本公开一部分实施例,而不是全部的实施例。基于本公开中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获取的所有其他实施例,都属于本公开保护的范围。
如图1至图6所示,本公开实施例提供一种制冷剂分配调节装置,应用于空调系统,该制冷剂分配调节装置包括:
制冷剂分配单元1,包括第一流道11和第二流道12,第一流道11的容积大于第二流道12的容积;
流道切换单元2,流道切换单元2分别与第一流道11和第二流道12连接,流道切换单元2还用于分别与空调系统的第一介质提供装置3、第二介质提供装置4、室内热交换单元5和压缩机单元6连接;
流道切换单元2可在第一状态与第二状态之间切换;
在第一状态下,第一流道11用于分别与第一介质提供装置3和室内热交换单元5连通,第二流道12用于分别与第二介质提供装置4和压缩机单元6连通;
在第二状态下,第一流道11用于分别与第二介质提供装置4和压缩机单元6连通,第二流道12用于分别与第一介质提供装置3和室内热交换单元5连通;
其中,第一介质为液相制冷剂,第二介质为气液两相制冷剂。
对于液相制冷剂和气液两相制冷剂来说,液相制冷剂为密度较高、压力较高的制冷剂,气液两相制冷剂为密度较低、压力较低的制冷剂。
上述第一介质提供装置3即为提供第一介质的装置,上述第二介质提供装置4即为提供第二介质的装置。对于空调系统而言,空调系统中的冷凝器可输出高密度高压的液态制冷剂,冷凝器中的液态制冷剂经节流器节流后,可形成低密度低压的气液两相制冷剂。因此,空调系统中的冷凝器可以作为第一介质提供装置3,空调系统中的节流器可以作为第二介质提供装置4,但不限于此。
上述制冷剂分配单元1中,第一流道11与第二流道12的容积可以结合空调系统在不同工况下的各项工作参数和性能参数进行灵活地设置。
需要说明的是,本申请中关于流道的容积,均是指制冷剂通过流道的实 际容积。
在一些实施例中,第一流道11设置有第一接口111和第二接口112,第二流道12设置有第三接口121和第四接口122;
流道切换单元2分别与第一接口111、第二接口112、第三接口121和第四接口122连接;
在第一状态下,第一接口111用于与第一介质提供装置3连通,第二接口112用于与室内热交换单元5连通,第三接口121用于与第二介质提供装置4连通,第四接口122用于与压缩机单元6连通;
在第二状态下,第一接口111用于与第二介质提供装置4连通,第二接口112用于与压缩机单元6连通,第三接口121用于与第一介质提供装置3连通,第四接口122用于与室内热交换单元5连通。
上述第一流道11的第一接口111可以理解为制冷剂入口,第一流道11的第二接口112可以理解为制冷剂出口;上述第二流道12的第三接口121可以理解为制冷剂入口,第二流道12的第四接口122可以理解为制冷剂出口。
空调系统中制冷剂量的多少直接影响空调的性能,空调系统在不同的工况下需要不同量的制冷剂。以下以两种不同的制冷工况为例进行具体说明。
在常规的制冷条件下,即标准制冷工况下,例如,外界环境的温度未超过48℃时,空调系统需要较多的制冷剂,以使空调在标准制冷工况下实现更高的能效比。这时,可以使第一介质流经第二流道12,由于第二流道12的容积小于或等于第一流道11的容积,这样,能够使更少的第一介质储存于第二流道12内,而使更多的第一介质进入空调系统中运行。
而在外界环境温度较高的制冷工况下,例如,外界环境的温度超过48℃时,空调系统需要较少的制冷剂,以使空调在高环境温度的制冷工况下达到更高的能力。这时,可以使第一介质流经第一流道11,由于第一流道11的容积大于第二流道12的容积,这样,能够使更多的第一介质储存于第一流道11内,而使更少的第一介质进入空调系统中运行。
本公开实施例中,通过流道切换单元2实现上述两种工况下,两种制冷剂介质的流道的切换,即通过流道切换单元2实现两种制冷剂介质的流通方向的切换。
为了实现第一介质和第二介质的流通,该流道切换单元2需要通过管路分别与第一接口111、第二接口112、第三接口121和第四接口122连接,流道切换单元2还需要通过管路分别与第一介质提供装置3、第二介质提供装置4、室内热交换单元5和压缩机单元6连接。为了便于区分两种介质的流向,图1至图6中,采用实线管路表示第一介质的流向,采用虚线管路表示第二介质的流向。其中,图1、图3和图5均对应于流道切换单元2处于第二状态时,两种制冷剂介质的流通方式,图2、图4和图6均对应流道切换单元2处于第一状态时,两种制冷剂介质的流通方式。
本公开实施例中,在标准制冷工况下对应的流道切换单元2状态为第二状态,在外界环境温度较高的制冷工况下对应的流道切换单元2状态为第一状态。
本公开实施例中,通过设置两个容积不同的流道以及流道切换单元,可以利用两个流道容积的差别实现制冷剂量的调节,从而在空调系统工作于不同工况下时,可以通过控制流道切换单元的状态,实现制冷剂流道的切换,从而实现制冷剂量的调节。本公开实施例有效解决了现有空调系统存在的不同工况下所需制冷剂量不同与制冷剂量无法调节的矛盾,提高了空调系统的工作性能。
本公开实施例中,对于如何设置流道切换单元2,以实现制冷剂流道的切换,以下以多个实施方式为例进行详细地说明。
如图3至图5所示,流道切换单元2包括第一流道切换机构21和第二流道切换机构22;
第一流道切换机构21分别与第一接口111和第三接口121连接,第一流道切换机构21还用于分别与第一介质提供装置3和第二介质提供装置4连接;
第二流道切换机构22分别与第二接口112和第四接口122连接,第二流道切换机构22还用于分别与室内热交换单元5和压缩机单元6连接。
其中,第一流道切换机构21设置于制冷剂分配单元1的制冷剂入口之前,可以理解为前置切换机构;第二流道切换机构22设置于制冷剂分配单元1的制冷剂出口之后,可以理解为后置切换机构。
作为一种实施方式,如图3至图4所示,第一流道切换机构21可以为第 一四通阀211,第二流道切换机构22可以为第二四通阀221。
第一四通阀211和第二四通阀211均具有四个接口。
第一四通阀211的接口一2111可通过管路与第一介质提供装置3连接,第一四通阀211的接口二2112可通过管路与第二介质提供装置4连接,第一四通阀211的接口三2113可通过管路与第一接口111连接,第一四通阀211的接口四2114可通过管路与第三接口121连接。
相应的,第二四通阀221的接口一2211可通过管路与第二接口112连接,第二四通阀221的接口二2212可通过管路与第四接口122连接,第二四通阀221的接口三2213可通过管路与室内热交换单元5连接,第二四通阀221的接口四2214可通过管路与压缩机单元6连接。
如图4所示,通过控制第一四通阀211的接口一2111与第一四通阀211的接口三2113连通,第一四通阀211的接口二2112与第一四通阀211的接口四2114连通;并通过控制第二四通阀221的接口一2211与第二四通阀221的接口三2213连通,第二四通阀221的接口二2212与第二四通阀221的接口四2214连通,则可以使当前流道切换单元2处于第一状态。
如图3所示,通过控制第一四通阀211的接口二2112与第一四通阀211的接口三2113连通,第一四通阀211的接口一2111与第一四通阀211的接口四2114连通;并通过控制第二四通阀221的接口二2212与第二四通阀221的接口三2213连通,第二四通阀221的接口一2211与第二四通阀221的接口四2214连通,则可以使当前流道切换单元2处于第二状态。
图3至图4所示的实施方式中,仅通过对两个四通阀接口连通状态的切换,灵活地实现了制冷剂流道的切换,其结构简单、可操作性较强。
作为另一种实施方式,如图5至图6所示,第一流道切换机构21包括第一电磁阀212、第二电磁阀213、第一逆止阀214、第二逆止阀215和三通阀216,第二流道切换机构22为第三四通阀222;
第一电磁阀212和第二电磁阀213分别用于与第一介质提供装置3连接,第一逆止阀214和第二逆止阀215分别用于与第二介质提供装置4连接,第一电磁阀212通过三通阀216分别与第一逆止阀214和第三接口121连接,第二电磁阀213分别与第二逆止阀215和第一接口111连接。
上述第一流道切换机构21的各部件之间的连接均可通过管路实现。
第三四通阀222均具有四个接口,第三四通阀222的接口一2221可通过管路与第二接口112连接,第三四通阀222的接口二2222可通过管路与第四接口122连接,第三四通阀222的接口三2223可通过管路与室内热交换单元5连接,第三四通阀222的接口四2224可通过管路与压缩机单元6连接。
如图6所示,通过控制第一电磁阀212关闭,第二电磁阀213开启,并通过控制第三四通阀222的接口一2221与第三四通阀222的接口三2223连通,第三四通阀222的接口二2222与第三四通阀222的接口四2224连通,则可以使当前流道切换单元2处于第一状态。
如图5所示,通过控制第一电磁阀212开启,第二电磁阀213关闭,并通过控制第三四通阀222的接口二2222与第三四通阀222的接口三2223连通,第三四通阀222的接口一2221与第三四通阀222的接口四2224连通,则可以使当前流道切换单元2处于第二状态。
对于第二流道切换机构22,即第三四通阀222的控制原理,由于容易理解,对此不作具体描述。对于第一流道切换机构21的控制原理,以下进行具体说明。
通过前述说明可知,第一介质提供装置3提供的第一介质为高密度高压的液态制冷剂,第二介质提供装置4提供的第二介质为低密度低压的气液两相制冷剂。
如图6所示,在第一电磁阀212关闭,第二电磁阀213开启时,制冷剂介质的流向为:第一介质通过第二电磁阀213流至第一接口111,第二介质依次通过第一逆止阀214和三通阀216流至第三接口121。
第一介质可从第二电磁阀213流至第二逆止阀215,由于第二逆止阀215的流通方向与第一介质的流通方向相反,因此,第一介质无法通过第二逆止阀215。第二介质在流至第二逆止阀215时,由于第一介质的压力大于第二介质的压力,第一介质与第二介质的压力差使得第二介质也无法通过第二逆止阀215。从而,第一介质只能通过第二电磁阀213流至第一接口111,第二介质只能通过第一逆止阀214和三通阀216流至第三接口121。
如图5所示,在第一电磁阀212开启,第二电磁阀213关闭时,制冷剂 介质的流向为:第一介质依次通过第一电磁阀212和三通阀216流至第三接口121,第二介质通过第二逆止阀215流至第一接口111。
第一介质可从三通阀216流至第一逆止阀214,由于第一逆止阀214的流通方向与第一介质的流通方向相反,因此,第一介质无法通过第一逆止阀214。第二介质流至第一逆止阀214时,由于第一介质的压力大于第二介质的压力,第一介质与第二介质的压力差使得第二介质也无法通过第一逆止阀214。从而,第一介质只能通过第一电磁阀212和三通阀216流至第三接口121,第二介质只能通过第二逆止阀215流至第一接口111。
图5至图6所示的实施方式中,通过利用两种介质的压差,仅通过对两个电磁阀开闭状态的切换,以及一个四通阀接口连通状态的切换,便灵活地实现了制冷剂流道的切换,其结构简单、可操作性较强。图5和图6所示的实施方式,第一流道切换机构21的控制更加简单,第一流道切换机构21所占用的安装空间也更小,第一流道切换机构21所需的成本也更低。
此外,流道切换单元2还可以为集成两个四通阀的八通阀,其控制方法和控制原理与采用两个独立的四通阀的实施方式基本相同,可参见前述的相关说明,由于容易理解且容易实施,本公开实施例对此不作具体描述。
以上的流道切换单元2的具体实施方式仅为典型示例,除此之外,其他能够实现制冷剂流道切换的流道切换单元也均适用于本公开实施例。
本公开实施例中,制冷剂分配单元1的设置方式可以有多种,以下进行详细地说明。
本公开实施例中,第一流道11与第二流道12可以分别独立设置,或者说,第一流道11与第二流道12可以不相接触,第一流道11内的介质与第二流道12内的介质不进行热交换;第一流道11与第二流道12也可以相接触设置,第一流道11内的介质与第二流道12内的介质可通过接触部位进行热交换。对于后者,制冷剂分配单元1实际作为一种第一介质与第二介质的热交换器。
其中,第一流道11可以与第二流道12直接接触,例如,第一流道11的管壁与第二流道12的管壁相靠,或者第一流道11与第二流道12具有共同的管壁。第一流道11也可以与第二流道12间接接触,例如,在第一流道11与 第二流道12之间设置热传导部件。
考虑到空调系统中原本设置的过冷器为制冷剂与制冷剂热交换器,因此,可以将本公开实施例的制冷剂分配单元1作为空调系统中的过冷器。这样,待设置上述制冷剂分配调节装置的空调系统可以省去过冷器的设置,使得应用该制冷剂分配调节装置的空调系统所需要增加的零部件尽可能少,能够进一步降低所需要的成本,还使整个空调系统的结构更加简单。
在一些实施例中,第一流道11与第二流道12相套设。
其中,可以将第一流道11套设于第二流道12外(参见图1至图6),也可以将第二流道12套设于第一流道11外。
通过上述设置,可以增大第一流道11与第二流道12之间的接触面积,从而提高第一介质与第二介质之间的热交换效率。
第一流道11与第二流道12可以同轴套设,也可以不同轴套设。对于同轴套设的方式,第一介质与第二介质之间的热交换更加均匀。
以上为本公开实施例提供的制冷剂分配调节装置的实施举例说明。
本公开实施例还提供一种空调系统。如图3至图6所示,空调系统包括:第一介质提供装置3、第二介质提供装置4、压缩机单元5、室内热交换单元6和上述发明实施例中的任一种制冷剂分配调节装置;
流道切换单元2分别与第一介质提供装置3、第二介质提供装置4、室内热交换单元5和压缩机单元6连接;
在第一状态下,第一流道11分别与第一介质提供装置3和室内热交换单元5连通,第二流道12分别与第二介质提供装置4和压缩机单元6连通;
在第二状态下,第一流道11分别与第二介质提供装置4和压缩机单元6连通,第二流道12分别与第一介质提供装置3和室内热交换单元5连通。
在一些实施例中,第一流道11设置有第一接口111和第二接口112,第二流道12设置有第三接口121和第四接口122;
流道切换单元2分别与第一接口111、第二接口112、第三接口121和第四接口122连接;
在第一状态下,第一接口111与第一介质提供装置3连通,第二接口112与室内热交换单元5连通,第三接口121与第二介质提供装置4连通,第四 接口122与压缩机单元6连通;
在第二状态下,第一接口111与第二介质提供装置4连通,第二接口112与压缩机单元6连通,第三接口121与第一介质提供装置3连通,第四接口122与室内热交换单元5连通。
其中,压缩机单元6可以包括压缩机和气液分离器,第二接口112可以与压缩机单元6中的气液分离器连接。这样,第二介质可以先经过气液分离器进行气液分离,再输送至压缩机中。
在一些实施例中,第一介质提供装置3与第二介质提供装置4连接,第一介质提供装置3为空调系统的冷凝器,第二介质提供装置4为空调系统的节流器。
在一些实施例中,第一流道11与第二流道12相接触;
制冷剂分配调节装置的制冷剂分配单元1为空调系统的过冷器。
本公开实施例的具体实施方式可以参见上述发明实施例中关于制冷剂分配调节装置的相关说明,并能够达到相同的有益效果,为避免重复,对此不作赘述。
本公开实施例还提供一种空调系统控制方法,应用上述发明实施例提供的任一种空调系统。如图7所示,空调系统控制方法包括:
步骤201:根据空调系统的工况,控制所述空调系统的流道切换单元的状态。
根据前述可知,空调系统中制冷剂量的多少直接影响空调的性能,空调系统在不同的工况下需要不同量的制冷剂。鉴于此,本公开实施例的空调系统控制方法提供一种根据空调系统的工况,调节空调系统的制冷剂量的方法。
具体的,在该步骤中,根据空调系统的工况,控制空调系统的流道切换单元的状态,以实现对空调系统中制冷剂量的调节。
其中,上述控制方法适用于制冷剂需求量不同的任何两种工况,上述控制方法既可用于两种不同的制冷工况下的制冷剂量的调节,也可用于两种不同的制热工况下的制冷剂量的调节,还可用于制冷工况与制热工况之间的制冷剂量的调节。
以下以上述控制方法用于两种不同的制冷工况为例,进行具体说明。
如图8所示,空调系统控制方法包括:
步骤201a:当空调系统工作于第一制冷工况时,控制所述空调系统的流道切换单元处于第一状态;
步骤201b:当空调系统工作于第二制冷工况时,控制所述空调系统的流道切换单元处于第二状态;
其中,所述第一制冷工况对应的环境温度大于温度阈值,所述第二制冷工况对应的环境温度小于或等于所述温度阈值。
本公开实施例中,第一制冷工况可以理解为环境温度较高的制冷工况,第二制冷工况可以理解为标准制冷工况,上述温度阈值可以是48℃。
在一些实施例中,如图9所示,在步骤201a之后,所述方法还包括:
步骤202a:当所述空调系统的制冷工况由所述第一制冷工况切换至第二制冷工况时,控制所述空调系统的流道切换单元从所述第一状态切换至所述第二状态。
在一些实施例中,如图10至图11所示,在步骤201b之后,所述方法还包括:
步骤202b:当所述空调系统的制冷工况由所述第二制冷工况切换至第一制冷工况时,控制所述空调系统的流道切换单元从所述第二状态切换至所述第一状态。
本公开实施例还提供一种空调系统,该空调系统为上述发明实施例提供的任一种空调系统。如图12所示,空调系统300包括执行模块301,执行模块301用于:
根据空调系统的工况,控制所述空调系统的流道切换单元的状态。
在一些实施例中,执行模块301具体用于:
当所述空调系统工作于第一制冷工况时,控制所述空调系统的流道切换单元处于第一状态;
当所述空调系统工作于第二制冷工况时,控制所述空调系统的流道切换单元处于第二状态;
其中,所述第一制冷工况对应的环境温度大于温度阈值,所述第二制冷工况对应的环境温度小于或等于所述温度阈值。
在一些实施例中,执行模块301还用于:
当所述空调系统的制冷工况由所述第一制冷工况切换至第二制冷工况时,控制所述空调系统的流道切换单元从所述第一状态切换至所述第二状态;
和/或,
当所述空调系统的制冷工况由所述第二制冷工况切换至第一制冷工况时,控制所述空调系统的流道切换单元从所述第二状态切换至所述第一状态。
需要说明的是,本公开实施例中上述空调系统300可以是方法实施例中任意实施方式的空调系统,方法实施例中空调系统的任意实施方式都可以被本公开实施例中的上述空调系统300所实现,并达到相同的有益效果,为避免重复,此处不再赘述。
本公开实施例还提供另一种空调系统,该空调系统为上述发明实施例提供的任一种空调系统。如图13所示,空调系统500还包括:处理器501、存储器502和总线接口。其中,总线架构可以包括任意数量的互联的总线和桥,具体由处理器501代表的一个或多个处理器和存储器502代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器和功率管理电路等之类的各种其他电路链接在一起,这些都是本领域所公知的,因此,本文不再对其进行进一步描述。处理器501负责管理总线架构和通常的处理,存储器502可以存储处理器501在执行操作时所使用的数据。
其中,处理器501用于:
根据空调系统的工况,控制所述空调系统的流道切换单元的状态。
在一些实施例中,处理器501在执行所述根据空调系统的工况,控制所述空调系统的流道切换单元的状态的步骤时,用于:
当所述空调系统工作于第一制冷工况时,控制所述空调系统的流道切换单元处于第一状态;
当所述空调系统工作于第二制冷工况时,控制所述空调系统的流道切换单元处于第二状态;
其中,所述第一制冷工况对应的环境温度大于温度阈值,所述第二制冷工况对应的环境温度小于或等于所述温度阈值。
在一些实施例中,处理器501还用于:
当所述空调系统的制冷工况由所述第一制冷工况切换至第二制冷工况时,控制所述空调系统的流道切换单元从所述第一状态切换至所述第二状态;
和/或,
当所述空调系统的制冷工况由所述第二制冷工况切换至第一制冷工况时,控制所述空调系统的流道切换单元从所述第二状态切换至所述第一状态。
需要说明的是,本公开实施例中上述空调系统500可以是方法实施例中任意实施方式的空调系统,方法实施例中空调系统的任意实施方式都可以被本公开实施例中的上述空调系统500所实现,并达到相同的有益效果,为避免重复,此处不再赘述。
本公开实施例还提供一种计算机可读存储介质,计算机可读存储介质上存储有计算机程序,该计算机程序被处理器执行时实现上述对应于MN或者SN的数据分流传输方法实施例的各个过程,且能达到相同的技术效果,为避免重复,这里不再赘述。其中,所述的计算机可读存储介质,如只读存储器(Read-Only Memory,简称ROM)、随机存取存储器(Random Access Memory,简称RAM)、磁碟或者光盘等。
以上所述,仅为本公开的具体实施方式,但本公开的保护范围并不局限于此,任何熟悉本技术领域的技术人员在本公开揭露的技术范围内,可轻易想到变化或替换,都应涵盖在本公开的保护范围之内。因此,本公开的保护范围应以权利要求的保护范围为准。

Claims (15)

  1. 一种制冷剂分配调节装置,应用于空调系统,所述装置包括:
    制冷剂分配单元,包括第一流道和第二流道,所述第一流道的容积大于所述第二流道的容积;
    流道切换单元,所述流道切换单元分别与所述第一流道和所述第二流道连接,所述流道切换单元还用于分别与所述空调系统的第一介质提供装置、第二介质提供装置、室内热交换单元和压缩机单元连接;
    所述流道切换单元可在第一状态与第二状态之间切换;
    在所述第一状态下,所述第一流道用于分别与所述第一介质提供装置和所述室内热交换单元连通,所述第二流道用于分别与所述第二介质提供装置和所述压缩机单元连通;
    在第二状态下,所述第一流道用于分别与所述第二介质提供装置和所述压缩机单元连通,所述第二流道用于分别与所述第一介质提供装置和所述室内热交换单元连通;
    其中,所述第一介质为液相制冷剂,所述第二介质为气液两相制冷剂。
  2. 根据权利要求1所述的调节装置,其中,所述第一流道设置有第一接口和第二接口,所述第二流道设置有第三接口和第四接口;
    所述流道切换单元分别与所述第一接口、所述第二接口、所述第三接口和所述第四接口连接;
    在所述第一状态下,所述第一接口用于与所述第一介质提供装置连通,所述第二接口用于与所述室内热交换单元连通,所述第三接口用于与所述第二介质提供装置连通,所述第四接口用于与所述压缩机单元连通;
    在所述第二状态下,所述第一接口用于与所述第二介质提供装置连通,所述第二接口用于与所述压缩机单元连通,所述第三接口用于与所述第一介质提供装置连通,所述第四接口用于与所述室内热交换单元连通。
  3. 根据权利要求2所述的调节装置,其中,所述流道切换单元包括第一流道切换机构和第二流道切换机构;
    所述第一流道切换机构分别与所述第一接口和所述第三接口连接,所述 第一流道切换机构还用于分别与所述第一介质提供装置和所述第二介质提供装置连接;
    所述第二流道切换机构分别与所述第二接口和所述第四接口连接,所述第二流道切换机构还用于分别与所述室内热交换单元和所述压缩机单元连接。
  4. 根据权利要求3所述的调节装置,其中,所述第一流道切换机构为第一四通阀,所述第二流道切换机构为第二四通阀;
    或者,
    第一流道切换机构包括第一电磁阀、第二电磁阀、第一逆止阀、第二逆止阀和三通阀,所述第二流道切换机构为第三四通阀;所述第一电磁阀和所述第二电磁阀分别用于与所述第一介质提供装置连接,所述第一逆止阀和所述第二逆止阀分别用于与所述第二介质提供装置连接,所述第一电磁阀通过所述三通阀分别与所述第一逆止阀和所述第三接口连接,所述第二电磁阀分别与所述第二逆止阀和所述第一接口连接。
  5. 根据权利要求1或2所述的调节装置,其中,所述流道切换单元为集成两个四通阀的八通阀。
  6. 根据权利要求1至4中任一项所述的调节装置,其中,所述第一流道与所述第二流道相接触,以使所述第一流道内的介质与所述第二流道内的介质进行热交换。
  7. 根据权利要求1至4中任一项所述的调节装置,其中,所述第一流道与所述第二流道不相接触。
  8. 一种空调系统,包括:第一介质提供装置、第二介质提供装置、压缩机单元、室内热交换单元和权利要求1至7中任一项所述的制冷剂分配调节装置;
    流道切换单元分别与所述第一介质提供装置、所述第二介质提供装置、所述室内热交换单元和所述压缩机单元连接;
    在第一状态下,第一流道分别与所述第一介质提供装置和所述室内热交换单元连通,第二流道分别与所述第二介质提供装置和所述压缩机单元连通;
    在第二状态下,所述第一流道分别与所述第二介质提供装置和所述压缩机单元连通,所述第二流道分别与所述第一介质提供装置和所述室内热交换 单元连通。
  9. 根据权利要求8所述的空调系统,其中,所述第一介质提供装置与所述第二介质提供装置连接,所述第一介质提供装置为所述空调系统的冷凝器,所述第二介质提供装置为所述空调系统的节流器。
  10. 根据权利要求9所述的空调系统,其中,所述第一流道与所述第二流道相接触;
    所述制冷剂分配调节装置的制冷剂分配单元为所述空调系统的过冷器。
  11. 一种空调系统控制方法,应用于权利要求8至10中任一项所述的空调系统,所述方法包括:
    根据空调系统的工况,控制所述空调系统的流道切换单元的状态。
  12. 根据权利要求11所述的方法,其中,所述根据空调系统的工况,控制所述空调系统的流道切换单元的状态,包括:
    当所述空调系统工作于第一制冷工况时,控制所述空调系统的流道切换单元处于第一状态;
    当所述空调系统工作于第二制冷工况时,控制所述空调系统的流道切换单元处于第二状态;
    其中,所述第一制冷工况对应的环境温度大于温度阈值,所述第二制冷工况对应的环境温度小于或等于所述温度阈值。
  13. 根据权利要求12所述的方法,其中,所述方法还包括:
    当所述空调系统的制冷工况由所述第一制冷工况切换至第二制冷工况时,控制所述空调系统的流道切换单元从所述第一状态切换至所述第二状态;
    和/或,
    当所述空调系统的制冷工况由所述第二制冷工况切换至第一制冷工况时,控制所述空调系统的流道切换单元从所述第二状态切换至所述第一状态。
  14. 一种空调系统,所述空调系统为权利要求8至10中任一项所述的空调系统,所述空调系统包括:存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序,所述计算机程序被所述处理器执行时实现如权利要求11至13中任一项所述的空调系统控制方法中的步骤。
  15. 一种计算机可读存储介质,其中,所述计算机可读存储介质上存储 有计算机程序,所述计算机程序被处理器执行时实现如权利要求11至13中任一项所述的空调系统控制方法的步骤。
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Families Citing this family (1)

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Publication number Priority date Publication date Assignee Title
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Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1821664A (zh) * 2005-02-17 2006-08-23 Lg电子株式会社 多路空调及其控制方法
WO2009087733A1 (ja) * 2008-01-07 2009-07-16 Mitsubishi Electric Corporation 冷凍サイクル装置および四方弁
JP2009228972A (ja) * 2008-03-21 2009-10-08 Daikin Ind Ltd 冷凍装置
CN102102920A (zh) * 2009-12-22 2011-06-22 三星电子株式会社 热泵设备及其室外单元
CN103256748A (zh) * 2011-12-12 2013-08-21 三星电子株式会社 空气调节器
CN106225295A (zh) * 2016-08-31 2016-12-14 广东美芝制冷设备有限公司 制冷系统
CN106288489A (zh) * 2016-07-29 2017-01-04 广东美的制冷设备有限公司 冷暖型空调器及控制方法
CN106546030A (zh) * 2016-11-30 2017-03-29 广东美芝制冷设备有限公司 制冷系统
CN107677009A (zh) * 2017-11-20 2018-02-09 广东美的制冷设备有限公司 空调器系统、运行控制方法和计算机可读存储介质
CN108870803A (zh) * 2017-05-12 2018-11-23 开利公司 热泵系统及其控制方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2863245B2 (ja) * 1990-03-07 1999-03-03 松下冷機株式会社 多室冷暖房装置
PT672875E (pt) * 1994-03-15 2000-11-30 Mitsubishi Electric Corp Sistema de ar condicionado, acumulador para o mesmo e processo para a fabricacaodo acumulador
ES2176850T3 (es) * 1994-07-21 2002-12-01 Mitsubishi Electric Corp Acondicionador de aire utilizando un refrigerante no azeotropico e integrando un aparato detector de informacion de control.
CN1128316C (zh) * 1999-07-05 2003-11-19 清华同方股份有限公司 一种蓄冷蓄热型热泵空调机
JP4410980B2 (ja) * 2002-09-19 2010-02-10 三菱電機株式会社 冷凍空調装置
KR100618212B1 (ko) * 2003-10-16 2006-09-01 엘지전자 주식회사 에어컨의 냉매 온도 제어 시스템 및 그 제어방법
CN1952495A (zh) * 2005-10-17 2007-04-25 乐金电子(天津)电器有限公司 空调器室外机
CN109140845B (zh) * 2018-08-23 2020-10-02 特灵空调系统(中国)有限公司 储液器和具有其的热泵系统

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1821664A (zh) * 2005-02-17 2006-08-23 Lg电子株式会社 多路空调及其控制方法
WO2009087733A1 (ja) * 2008-01-07 2009-07-16 Mitsubishi Electric Corporation 冷凍サイクル装置および四方弁
JP2009228972A (ja) * 2008-03-21 2009-10-08 Daikin Ind Ltd 冷凍装置
CN102102920A (zh) * 2009-12-22 2011-06-22 三星电子株式会社 热泵设备及其室外单元
CN103256748A (zh) * 2011-12-12 2013-08-21 三星电子株式会社 空气调节器
CN106288489A (zh) * 2016-07-29 2017-01-04 广东美的制冷设备有限公司 冷暖型空调器及控制方法
CN106225295A (zh) * 2016-08-31 2016-12-14 广东美芝制冷设备有限公司 制冷系统
CN106546030A (zh) * 2016-11-30 2017-03-29 广东美芝制冷设备有限公司 制冷系统
CN108870803A (zh) * 2017-05-12 2018-11-23 开利公司 热泵系统及其控制方法
CN107677009A (zh) * 2017-11-20 2018-02-09 广东美的制冷设备有限公司 空调器系统、运行控制方法和计算机可读存储介质

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