WO2020133926A1 - 低温制冷风阀的控制方法及装置 - Google Patents

低温制冷风阀的控制方法及装置 Download PDF

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Publication number
WO2020133926A1
WO2020133926A1 PCT/CN2019/090144 CN2019090144W WO2020133926A1 WO 2020133926 A1 WO2020133926 A1 WO 2020133926A1 CN 2019090144 W CN2019090144 W CN 2019090144W WO 2020133926 A1 WO2020133926 A1 WO 2020133926A1
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WO
WIPO (PCT)
Prior art keywords
range
preset
opening
energy demand
air valve
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/CN2019/090144
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English (en)
French (fr)
Inventor
杨国忠
梁鑫
王命仁
谭志军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GD Midea Heating and Ventilating Equipment Co Ltd
Hefei Midea Heating and Ventilating Equipment Co Ltd
Original Assignee
GD Midea Heating and Ventilating Equipment Co Ltd
Hefei Midea Heating and Ventilating Equipment Co Ltd
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Publication date
Application filed by GD Midea Heating and Ventilating Equipment Co Ltd, Hefei Midea Heating and Ventilating Equipment Co Ltd filed Critical GD Midea Heating and Ventilating Equipment Co Ltd
Priority to CA3125225A priority Critical patent/CA3125225A1/en
Publication of WO2020133926A1 publication Critical patent/WO2020133926A1/zh
Priority to US17/361,190 priority patent/US12038192B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B19/00—Program-control systems
    • G05B19/02—Program-control systems electric
    • G05B19/04—Program control other than numerical control, i.e. in sequence controllers or logic controllers
    • G05B19/042—Program control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63—Electronic processing
    • F24F11/64—Electronic processing using pre-stored data
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/10—Temperature
    • F24F2110/12—Temperature of the outside air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2140/00—Control inputs relating to system states
    • F24F2140/10—Pressure
    • F24F2140/12—Heat-exchange fluid pressure
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
    • G05B2219/00—Program-control systems
    • G05B2219/20—Pc systems
    • G05B2219/26—Pc applications
    • G05B2219/2614—HVAC, heating, ventillation, climate control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the invention relates to the technical field of air conditioning, in particular to a low-temperature refrigeration air valve control method and a low-temperature refrigeration air valve control device.
  • related technologies include optimizing the control strategy of multi-line air conditioners, such as reducing the speed of outdoor unit fans, shutting down some heat exchangers, switching some external heat exchangers from condenser to evaporator by design, and controlling throttling components in the system And other ways.
  • the problem with the related art is that in an ultra-low temperature environment (for example, below -15°C), the convection heat exchange between the heat exchanger and the air still cannot match the requirements of the cooling load and cannot meet the cooling demand.
  • the present invention aims to solve one of the technical problems in the related art at least to a certain extent. Therefore, the first object of the present invention is to propose a control method of a low-temperature refrigeration air valve, which can refine the opening range of the low-temperature refrigeration air valve and determine the opening of the low-temperature refrigeration air valve, which is beneficial to multi-line at ultra-low temperature At the same time, the cooling operation in the environment increases the reliability of low-temperature cooling operation and expands the cooling operation range.
  • the second object of the present invention is to propose a control device for a low-temperature refrigeration air valve.
  • a method for controlling a low-temperature refrigeration air valve proposed in an embodiment of the first aspect of the present invention includes: acquiring the actual system pressure, ambient temperature, and system energy demand; based on the actual system pressure, the ambient temperature, and all The described system can determine the opening of the low-temperature refrigeration air valve.
  • the actual system pressure, the ambient temperature, and the system energy demand are obtained, and the opening degree of the low-temperature refrigeration air valve is determined according to the actual system pressure, the ambient temperature, and the system energy demand. Therefore, according to the high pressure of the system, the ambient temperature, and the system's ability to control the low-temperature refrigeration air valve, the opening range of the low-temperature refrigeration air valve can be refined, and the opening of the low-temperature refrigeration air valve can be determined, which is beneficial to multi-line at ultra-low temperature At the same time, the cooling operation in the environment increases the reliability of low-temperature cooling operation and expands the cooling operation range.
  • control method of the low-temperature refrigeration air valve according to the above embodiment of the present invention may also have the following additional technical features:
  • the actual pressure of the system is the compressor discharge pressure or the condenser condensation pressure.
  • the determining the opening degree of the low-temperature refrigeration air valve according to the actual pressure of the system, the ambient temperature and the energy requirements of the system specifically includes: if the actual pressure of the system is greater than the maximum preset pressure Value, it is determined that the opening of the cryogenic refrigeration air valve is fully open; if the actual pressure of the system is less than or equal to the maximum preset pressure value and greater than the second preset pressure value, the cryogenic refrigeration air is determined
  • the valve opening range is the first preset range; if the actual pressure of the system is less than or equal to the second preset pressure value and greater than the third preset pressure value, the opening of the low-temperature refrigeration air valve is determined
  • the range is a second preset range, wherein the second preset range is less than the first preset range; if the actual pressure of the system is less than the minimum preset pressure value, the opening of the low-temperature refrigeration air valve is determined Is fully closed.
  • the control method further includes: if the opening range of the low-temperature refrigeration air valve is the first preset range, and the ambient temperature is greater than the maximum preset temperature value, further determining The opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range; if the opening range of the low-temperature refrigeration air valve is the first preset range, and the ambient temperature is less than or equal to If the maximum preset temperature value is greater than the second preset temperature value, it is further determined that the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the first preset range; if the The opening range of the low-temperature refrigeration air valve is the first preset range, and the ambient temperature is less than or equal to the second preset temperature value and greater than the third preset temperature value, then the low-temperature refrigeration is further determined The opening range of the damper is reduced by a second preset percentage relative to the first preset range, where the first preset percentage is less than the second preset percentage;
  • the low-temperature refrigeration air valve is further determined The opening range is the maximum value of the second preset range; if the opening range of the low-temperature refrigeration air valve is the second preset range, and the ambient temperature is less than or equal to the maximum preset temperature value , And greater than the second preset temperature value, it is further determined that the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the second preset range; if the opening of the low-temperature refrigeration air valve is The range is the second preset range, and the ambient temperature is less than or equal to the second preset temperature value and greater than the third preset temperature value, then it is further determined that the opening range of the low-temperature refrigeration air valve is Decrease a second preset percentage relative to the second preset range, wherein the first preset percentage is less than the second preset percentage; if
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range, and the energy demand range of the system energy demand is the minimum energy demand range
  • determine The opening of the cryogenic refrigeration air valve is the first preset opening; if the opening range of the cryogenic refrigeration air valve is the maximum value of the first preset range, and the energy demand range of the system is In the first energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is a second preset opening, wherein the first preset opening is smaller than the second preset opening; if the low-temperature refrigeration The opening range of the damper is the maximum value of the first preset range, and the energy demand range of the system energy demand is the second energy demand range, then it is determined that the opening degree of the low-temperature refrigeration damper is the third preset Set an opening degree, wherein the second preset opening degree is smaller than the third preset opening degree, the first energy demand range is smaller than the second energy demand range; if the opening of the
  • the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the first preset range, and the energy demand range of the system is the minimum If the range of energy demand is determined, it is determined that the opening of the low-temperature refrigeration air valve is the fifth preset opening; if the opening of the low-temperature refrigeration air valve is reduced by the first preset percentage relative to the first preset range , And the energy demand range of the system energy demand is the first energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the sixth preset opening, wherein the fifth preset opening is less than Sixth preset opening; if the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the first preset range, and the energy demand range of the system is the second The range of energy demand, then the opening of the low-temperature refrigeration air valve is determined to be the seventh preset opening, wherein the sixth preset opening is less than the seventh preset opening; if
  • the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the first preset range, and the energy demand range of the system is the minimum If the range of energy demand is determined, it is determined that the opening degree of the cryogenic refrigeration air valve is the ninth preset opening degree; if the opening range of the cryogenic refrigeration air valve is a second preset percentage lower than the first preset range , And the energy demand range of the system energy demand is the first energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the tenth preset opening, wherein the ninth preset opening is less than The tenth preset opening degree; if the opening range of the low-temperature refrigeration air valve is a second preset percentage lower than the first preset range, and the energy demand range of the system is the In the second energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the eleventh preset opening, where the tenth preset opening is smaller than the eleventh preset
  • the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range and the energy demand range of the system energy demand is the minimum energy demand range, then Determining that the opening degree of the low-temperature refrigeration air valve is the thirteenth preset opening degree; if the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range, and the energy requirements of the system If the demand range is the first energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the fourteenth preset opening, wherein the thirteenth preset opening is smaller than the fourteenth opening ; If the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range, and the energy demand range of the system energy demand is the second energy demand range, determine the low-temperature refrigeration air The opening degree of the valve is the fifteenth preset opening degree, wherein the fourteenth preset opening degree is smaller than the fifteenth preset opening degree; if the opening range of the low-temperature refrigeration
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range, and the energy demand range of the system energy demand is the minimum energy demand range, then determine the The opening of the low-temperature refrigeration air valve is the seventeenth preset opening; if the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range, and the energy demand of the system is in the energy demand range Is the first required range, it is determined that the opening of the low-temperature refrigeration air valve is the eighteenth preset opening, where the seventeenth preset opening is smaller than the eighteenth preset opening; if The opening range of the cryogenic refrigeration air valve is the maximum value of the second preset range, and the energy demand range of the system energy demand is the second energy demand range, then the opening degree of the cryogenic refrigeration air valve is determined Is a nineteenth preset opening degree, wherein the nineteenth preset opening degree is smaller than the eighteenth preset opening degree; if the opening range of the low-
  • the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the second preset range, and the energy demand range of the system is the minimum If the range of energy demand is determined, it is determined that the opening of the low-temperature refrigeration air valve is the twenty-first preset opening; if the opening range of the low-temperature refrigeration air valve is lower than the second preset range by a first Set a percentage, and the energy demand range of the system energy demand is the first energy demand range, then determine the opening degree of the low-temperature refrigeration air valve as the 22nd preset opening degree, wherein, the 20th A preset opening degree is less than the twenty-second preset opening degree; if the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the second preset range, and the system needs to be located If the energy demand range is the second energy demand range, the opening of the low-temperature refrigeration air valve is determined to be the twenty-third preset opening, wherein the twenty
  • the opening range of the low-temperature refrigeration air valve is reduced by a second predetermined percentage relative to the second predetermined range, and the energy demand range of the system is the minimum If the range of energy demand is determined, it is determined that the opening of the low-temperature refrigeration air valve is the twenty-fifth preset opening; if the opening range of the low-temperature refrigeration air valve is the second Set a percentage, and the energy demand range of the system energy demand is the first energy demand range, then determine the opening degree of the low-temperature refrigeration air valve to be the twenty-sixth preset opening degree, wherein, the twentieth Five preset openings are less than the twenty-sixth preset opening; if the opening range of the low-temperature refrigeration air valve is a second preset percentage lower than the second preset range, and the system can If the energy demand range of the demand is the second energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the 27th preset opening, wherein the 26th preset opening is
  • the opening range of the low-temperature refrigeration air valve is the minimum value of the second preset range, and the energy demand range of the system energy demand is the minimum energy demand range, then It is determined that the opening degree of the low-temperature refrigeration air valve is the twenty-ninth preset opening degree; if the opening range of the low-temperature refrigeration air valve is the minimum value of the second preset range, and the system needs to be located If the energy demand range is the first energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the thirtieth preset opening, wherein the twenty-ninth preset opening is less than the thirtieth Opening degree; if the opening range of the low-temperature refrigeration air valve is the minimum value of the second preset range, and the energy demand range of the system energy demand is the second energy demand range, then determine the low temperature
  • the opening degree of the cooling air valve is the thirty-first preset opening degree, wherein the thirtieth preset opening degree is smaller than the thirty-first prese
  • a control device for a low-temperature refrigeration air valve includes: an acquisition module for acquiring actual system pressure, ambient temperature and system energy demand; a determination module for The actual pressure of the system, the ambient temperature and the system energy need to determine the opening of the low-temperature refrigeration air valve.
  • the actual pressure, the ambient temperature and the system energy demand of the system are obtained through the acquisition module, and the actual pressure, the ambient temperature and the system energy of the system are determined through the determination module Need to determine the opening of the low-temperature refrigeration air valve, which can be coupled to the low-temperature refrigeration air valve according to the high pressure of the system, the ambient temperature and the system needs, refine the opening range of the low-temperature refrigeration air valve, and determine the opening of the low-temperature refrigeration air valve It is conducive to multi-line cooling operation in ultra-low temperature environment, at the same time, increasing the reliability of low-temperature cooling operation and expanding the range of cooling operation.
  • control device of the low-temperature refrigeration air valve according to the above embodiment of the present invention may also have the following additional technical features:
  • the actual pressure of the system is the compressor discharge pressure or the condenser condensation pressure.
  • the determination module is further configured to: if the actual pressure of the system is greater than the maximum preset pressure value, determine that the opening of the low-temperature refrigeration air valve is fully open; if the actual pressure of the system Less than or equal to the maximum preset pressure value and greater than the second preset pressure value, it is determined that the opening range of the low-temperature refrigeration air valve is the first preset range; if the actual pressure of the system is less than or equal to the The second preset pressure value is greater than the third preset pressure value, then it is determined that the opening range of the low-temperature refrigeration air valve is the second preset range, wherein the second preset range is smaller than the first preset Setting range; if the actual pressure of the system is less than the minimum preset pressure value, it is determined that the opening of the low-temperature refrigeration air valve is fully closed.
  • the determination module is further configured to: if the opening range of the low-temperature refrigeration air valve is the first preset range, and the ambient temperature is greater than the maximum preset temperature value, further Determining that the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range; if the opening range of the low-temperature refrigeration air valve is the first preset range, and the ambient temperature is less than or Equal to the maximum preset temperature value and greater than the second preset temperature value, it is further determined that the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the first preset range; if The opening range of the low-temperature refrigeration air valve is the first preset range, and the ambient temperature is less than or equal to the second preset temperature value and greater than the third preset temperature value, then the low temperature is further determined
  • the opening range of the cooling air valve is a second predetermined percentage lower than the first predetermined range, where the first predetermined percentage is less than the second predetermined percentage;
  • the determination module is further configured to: if the opening range of the low-temperature refrigeration air valve is the second preset range, and the ambient temperature is greater than the maximum preset temperature value, further Determining that the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range; if the opening range of the low-temperature refrigeration air valve is the second preset range, and the ambient temperature is less than or Equal to the maximum preset temperature value and greater than the second preset temperature value, it is further determined that the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the second preset range; if The opening range of the low-temperature refrigeration air valve is the second preset range, and the ambient temperature is less than or equal to the second preset temperature value and greater than the third preset temperature value, then the low temperature is further determined
  • the opening range of the cooling air valve is a second predetermined percentage lower than the second predetermined range, wherein the first predetermined percentage is less than the second predetermined percentage;
  • the determination module is further configured to: if the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range, and the energy demand range of the system is: The minimum energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the first preset opening; if the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range, and the If the energy demand range of the system is the first energy demand range, the opening of the low-temperature refrigeration air valve is determined to be the second preset opening, wherein the first preset opening is smaller than the second preset Opening; if the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range, and the energy demand range of the system energy demand is the second energy demand range, then determine the low-temperature refrigeration air
  • the opening degree of the valve is a third preset opening degree, wherein the second preset opening degree is smaller than the third preset opening degree, and the first energy demand range is smaller than the second energy
  • the determination module is further configured to: if the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the first preset range, and the system can require Where the energy demand range is the minimum energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the fifth preset opening; if the opening range of the low-temperature refrigeration air valve is relative to the first If the range is reduced by a first preset percentage and the energy demand range of the system is the first energy demand range, then the opening of the low-temperature refrigeration air valve is determined to be the sixth preset opening, where The fifth preset opening is less than the sixth preset opening; if the opening range of the low-temperature refrigeration air valve is a first preset percentage lower than the first preset range, and the system can If the energy demand range is the second energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the seventh preset opening, wherein the sixth preset opening is smaller than the seventh preset opening ; If
  • the determination module is further configured to: if the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the first preset range, and the system can require Where the energy demand range is the minimum energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the ninth preset opening; if the opening range of the low-temperature refrigeration air valve is relative to the first If the range is reduced by a second preset percentage and the energy demand range of the system is the first energy demand range, then the opening of the low-temperature refrigeration air valve is determined to be the tenth preset opening, where The ninth preset opening is less than the tenth preset opening; if the opening range of the low-temperature refrigeration air valve is a second preset percentage lower than the first preset range, and the system can If the energy demand range of the demand is the second energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the eleventh preset opening, wherein the tenth preset opening is
  • the determination module is further configured to: if the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range, and the energy demand range of the system is: The minimum energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the thirteenth preset opening; if the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range, And the energy demand range of the system energy demand is the first energy demand range, then it is determined that the opening degree of the low-temperature refrigeration air valve is the fourteenth preset opening degree, wherein the thirteenth preset opening degree Less than the fourteenth opening degree; if the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range, and the energy demand range of the system energy demand is the second energy demand range , It is determined that the opening of the cryogenic refrigeration air valve is the fifteenth preset opening, wherein the fourteenth preset opening is less than the fifteenth preset opening; if the cryogenic refrigeration
  • the determination module is further configured to: if the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range, and the energy demand range of the system is: The minimum energy demand range, it is determined that the opening degree of the cryogenic refrigeration air valve is the seventeenth preset opening degree; if the opening range of the cryogenic refrigeration air valve is the maximum value of the second preset range, and the If the energy demand range of the system energy demand is the first energy demand range, it is determined that the opening degree of the low-temperature refrigeration air valve is the eighteenth preset opening degree, wherein the seventeenth preset opening degree is less than the first 18.
  • the preset opening degree if the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range, and the energy demand range of the system energy demand is the second energy demand range, then determine the The opening of the cryogenic refrigeration air valve is a nineteenth preset opening, wherein the nineteenth preset opening is smaller than the eighteenth preset opening; if the opening range of the cryogenic refrigeration air valve is Is the maximum value of the second preset range, and the energy demand range of the system energy demand is the maximum energy demand range, then the opening degree of the low-temperature refrigeration air valve is determined to be the twentieth preset opening degree, where, The nineteenth preset opening degree is smaller than the twentieth preset opening degree.
  • the determination module is further configured to: if the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the second preset range, and the system can require Where the energy demand range is the minimum energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the twenty-first preset opening; if the opening range of the low-temperature refrigeration air valve is relative to the first Two preset ranges reduce the first preset percentage, and the energy demand range of the system is the first energy demand range, then the opening of the low-temperature refrigeration air valve is determined to be the twenty-second preset opening Where the twenty-first preset opening degree is less than the twenty-second preset opening degree; if the opening range of the low-temperature refrigeration air valve is a first preset percentage lower than the second preset range , And the energy demand range of the system energy demand is the second energy demand range, then it is determined that the opening degree of the low-temperature refrigeration air valve is the twenty-third preset opening degree, wherein
  • the determination module is further configured to: if the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the second preset range, and the system can require Where the energy demand range is the minimum energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the twenty-fifth preset opening; if the opening range of the low-temperature refrigeration air valve is relative to the first Two preset ranges are reduced by a second preset percentage, and the energy demand range of the system is the first energy demand range, then the opening of the low-temperature refrigeration air valve is determined to be the twenty-sixth preset opening , Wherein, the twenty-fifth preset opening degree is smaller than the twenty-sixth preset opening degree; if the opening range of the low-temperature refrigeration air valve is to reduce the second pre-setting relative to the second preset range Set a percentage, and the energy demand range of the system energy demand is the second energy demand range, then determine the opening degree of the low-temperatur
  • the determining module is further configured to: if the opening range of the low-temperature refrigeration air valve is the minimum value of the second preset range, and the energy demand range of the system is: The minimum energy demand range, it is determined that the opening of the low-temperature refrigeration air valve is the twenty-ninth preset opening; if the opening range of the low-temperature refrigeration air valve is the minimum value of the second preset range , And the energy demand range where the system energy demand is located is the first energy demand range, it is determined that the opening degree of the low-temperature refrigeration air valve is the thirtieth preset opening degree, wherein the twenty-ninth preset The opening degree is less than the thirtieth opening degree; if the opening range of the low-temperature refrigeration air valve is the minimum value of the second preset range, and the energy demand range of the system energy demand is the second energy If the range is required, it is determined that the opening of the low-temperature refrigeration air valve is the thirty-first preset opening, wherein the thi
  • FIG. 1 is a schematic flowchart of a control method of a low-temperature refrigeration air valve according to an embodiment of the present invention
  • FIG. 2 is a schematic flowchart of a control method for determining an opening range of a low-temperature refrigeration air valve according to an actual system pressure according to an embodiment of the present invention
  • FIG. 3 is a schematic flowchart of a control method for further determining the opening range of a low-temperature refrigeration air valve according to an ambient temperature according to an embodiment of the present invention
  • FIG. 4 is a schematic flowchart of a control method for further determining the opening range of the low-temperature refrigeration air valve according to the ambient temperature according to another embodiment of the present invention
  • FIG. 5 is a schematic flowchart of a control method for determining the opening degree of a low-temperature refrigeration air valve according to the system's energy needs according to the first specific embodiment of the present invention
  • FIG. 6 is a schematic flowchart of a control method for determining the opening degree of a low-temperature refrigeration air valve according to the system's energy needs according to the first specific embodiment of the present invention
  • FIG. 7 is a schematic flowchart of a control method for determining the opening degree of a low-temperature refrigeration air valve according to the system's energy needs according to a second specific embodiment of the present invention
  • FIG. 8 is a schematic flowchart of a control method for determining the opening degree of a low-temperature refrigeration air valve according to the system's energy needs according to a third specific embodiment of the present invention.
  • FIG. 9 is a schematic flowchart of a control method for determining the opening degree of a low-temperature refrigeration air valve according to the system's energy needs according to a fourth specific embodiment of the present invention.
  • FIG. 10 is a flowchart of a control method for determining the opening degree of a low-temperature refrigeration air valve according to the system's energy needs according to a fifth specific embodiment of the present invention
  • FIG. 11 is a schematic flowchart of a control method for determining the opening degree of a low-temperature refrigeration air valve according to the system's energy needs according to a sixth specific embodiment of the present invention.
  • FIG. 12 is a schematic flowchart of a control method for determining the opening degree of a low-temperature refrigeration air valve according to the system's energy needs according to a seventh specific embodiment of the present invention
  • FIG. 13 is a block schematic diagram of a control device for a low-temperature refrigeration air valve according to an embodiment of the present invention.
  • FIG. 1 is a schematic flowchart of a control method of a low-temperature refrigeration air valve according to an embodiment of the present invention.
  • control method of the low-temperature refrigeration air valve includes:
  • the actual system pressure Ps may be the compressor discharge pressure or the condenser condensation pressure.
  • the actual pressure Ps of the system can be obtained by installing a pressure sensor at any position between the compressor outlet of the refrigeration system and the heat exchanger of the external unit.
  • a temperature sensor may be provided on the outdoor unit to obtain the current ambient temperature Ts.
  • the system energy demand X of the refrigeration system can be obtained according to the set temperature set by the user.
  • S102 Determine the opening of the low-temperature refrigeration air valve according to the actual pressure of the system, the ambient temperature, and the system energy requirements.
  • determining the opening K of the low-temperature refrigeration air valve according to the actual system pressure Ps, the ambient temperature Ts, and the system energy demand X specifically includes:
  • the opening range of the low-temperature refrigeration air valve is the first preset Set the range, wherein the preset range can be set in advance, for example, the first preset range can be set to 80% to 100%.
  • the opening range of the low-temperature refrigeration air valve is the second preset range
  • the second preset range can be set to be 60% to 80%.
  • the preset range may be multiple preset ranges, and the refrigeration system may select the corresponding preset range according to the pressure range where the actual pressure of the system is located, and further determine the opening range of the low-temperature refrigeration air valve.
  • control method further includes:
  • the opening range of the low-temperature refrigeration air valve is the first preset range, for example, 80% to 100%, and the ambient temperature Ts is greater than the maximum preset temperature value Tmax, that is, Ts>Tmax, the low-temperature refrigeration air is further determined
  • the opening range of the valve is the maximum value of the first preset range. For example, it can be determined that the opening range of the low-temperature refrigeration air valve is 100%.
  • the opening range of the low-temperature refrigeration air valve is the first preset range, and the ambient temperature is less than or equal to the maximum preset temperature value and greater than the second preset temperature value, then further determine the opening range of the low-temperature refrigeration air valve To reduce the first preset percentage relative to the first preset range.
  • the opening range of the low-temperature refrigeration air valve is the first preset range, for example 80% to 100%, and the ambient temperature Ts is less than or equal to the maximum preset temperature value Tmax and greater than the second preset temperature value T2 , That is, when T2 ⁇ Ts ⁇ Tmax, it is further determined that the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the first preset range, where the first preset percentage can be set in advance, for example, The first preset percentage is set to 0% to 5%, that is, the opening range of the low-temperature refrigeration air valve is determined to be 95% to 100%.
  • the opening range of the low-temperature refrigeration air valve is the first preset range, and the ambient temperature is less than or equal to the second preset temperature value and greater than the third preset temperature value, further determine the opening degree of the low-temperature refrigeration air valve
  • the range is a second preset percentage lower than the first preset range, where the first preset percentage is less than the second preset percentage.
  • the opening range of the low-temperature refrigeration air valve is the first preset range, for example, 80% to 100%, and the ambient temperature Ts is less than or equal to the second preset temperature value T2 and greater than the third preset temperature value T3, that is, when T3 ⁇ Ts ⁇ T2, it is further determined that the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the first preset range, where the second preset percentage can be set in advance, for example, The second preset percentage can be set to 5%-10%, that is, the opening range of the low-temperature refrigeration air valve is determined to be 90%-95%.
  • the opening range of the low-temperature refrigeration air valve is the first preset range, for example, 80% to 100%, and the ambient temperature Ts is less than the minimum preset temperature value Tmin, that is, Ts ⁇ Tmin, the low-temperature refrigeration air is further determined
  • the opening range of the valve is the minimum value of the first preset range. For example, it can be determined that the opening range of the low-temperature refrigeration air valve is 80%.
  • control method further includes:
  • the opening range of the low-temperature refrigeration air valve is the second preset range and the ambient temperature is greater than the maximum preset temperature value, it is further determined that the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range.
  • the opening range of the low-temperature refrigeration air valve is the second preset range, for example, 60% to 80%, and the ambient temperature Ts is greater than the maximum preset temperature value Tmax, that is, Ts>Tmax, the low-temperature refrigeration air is further determined
  • the opening range of the valve is the maximum value of the second preset range. For example, it can be determined that the opening range of the low-temperature refrigeration air valve is 80%.
  • the opening range of the low-temperature refrigeration air valve is the second preset range, and the ambient temperature is less than or equal to the maximum preset temperature value and greater than the second preset temperature value, then further determine the opening range of the low-temperature refrigeration air valve To reduce the first preset percentage relative to the second preset range.
  • the opening range of the low-temperature refrigeration air valve is the second preset range, for example, 60% to 80%, and the ambient temperature Ts is less than or equal to the maximum preset temperature value Tmax and greater than the second preset temperature value T2 , That is, when T2 ⁇ Ts ⁇ Tmax, it is further determined that the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the second preset range, for example, the opening range of the low-temperature refrigeration air valve may be determined to be 75% ⁇ 80%.
  • the opening range of the low-temperature refrigeration damper is the second preset range, and the ambient temperature is less than or equal to the second preset temperature value and greater than the third preset temperature value, further determine the opening degree of the low-temperature refrigeration damper
  • the range is a second preset percentage lower than the second preset range, where the first preset percentage is less than the second preset percentage.
  • the opening range of the low-temperature refrigeration air valve is the second preset range, for example, 60% to 80%, and the ambient temperature Ts is less than or equal to the second preset temperature value T2 and greater than the third preset temperature value T3, that is, when T3 ⁇ Ts ⁇ T2, it is further determined that the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the second preset range, for example, it can be determined that the opening range of the low-temperature refrigeration air valve is 70% ⁇ 75%.
  • the opening range of the low-temperature refrigeration air valve is the second preset range, for example, 60% to 80%, and the ambient temperature Ts is less than the minimum preset temperature value Tmin, that is, Ts ⁇ Tmin, the low-temperature refrigeration air is further determined
  • the opening range of the valve is the minimum value of the second preset range. For example, it can be determined that the opening range of the low-temperature refrigeration air valve is 60%.
  • control method further includes:
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range, and the energy demand range of the system energy demand is the minimum energy demand range, then determine the opening of the low-temperature refrigeration air valve as the first preset opening degree.
  • the opening range of the cryogenic refrigeration air valve is the maximum value of the first preset range
  • the energy demand range where the system energy demand X is located is the minimum energy demand range Xmin
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range, and the energy demand range of the system energy demand is the first energy demand range, then determine the opening of the low-temperature refrigeration air valve as the second preset The opening degree, wherein the first preset opening degree is smaller than the second preset opening degree.
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range
  • the energy demand range where the system energy demand X is located is the first energy demand range X1, that is, Xmin ⁇ X ⁇ X1
  • the low temperature is determined
  • the opening K of the cooling air valve is the second preset opening K2, where K1 ⁇ K2.
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range, and the energy demand range of the system energy demand is the second energy demand range, it is determined that the opening degree of the low-temperature refrigeration air valve is the third preset The opening degree, wherein the second preset opening degree is smaller than the third preset opening degree, and the first energy demand range is smaller than the second energy demand range.
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range
  • the energy demand range where the system energy demand X is located is the second energy demand range X2, that is, X1 ⁇ X ⁇ X2
  • the low temperature is determined
  • the opening K of the cooling air valve is the third preset opening K3, where K2 ⁇ K3.
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range, and the energy demand range of the system energy demand is the maximum energy demand range, then determine the opening of the low-temperature refrigeration air valve as the fourth preset opening Degree, wherein the third preset opening degree is smaller than the fourth preset opening degree.
  • the opening range of the cryogenic refrigeration air valve is the maximum value of the first preset range
  • the energy demand range where the system energy demand X is located is the maximum energy demand range Xmax
  • the opening degree K of the cryogenic refrigeration air valve is the first Four preset openings K4, where K3 ⁇ K4.
  • control method further includes:
  • the opening degree of the cryogenic refrigeration air valve is determined as Fifth preset opening.
  • the opening degree K is the fifth preset opening degree K5.
  • the opening range of the cryogenic refrigeration air valve is reduced by a first preset percentage relative to the first preset range, and the energy demand range of the system energy demand is the first energy demand range, then determine the opening degree of the cryogenic refrigeration air valve It is the sixth preset opening degree, wherein the fifth preset opening degree is smaller than the sixth preset opening degree.
  • the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the first preset range
  • the energy demand range of the system energy demand X is the first energy demand range X1, that is, Xmin ⁇ X ⁇ At X1
  • the opening degree K of the low-temperature refrigeration air valve is the sixth preset opening degree K6, where K5 ⁇ K6.
  • the opening degree of the cryogenic refrigeration air valve is determined It is the seventh preset opening degree, wherein the sixth preset opening degree is smaller than the seventh preset opening degree.
  • the opening range of the low-temperature refrigeration air valve is reduced by a first predetermined percentage relative to the first predetermined range, and the energy demand range of the system energy demand X is the second energy demand range X2, that is, X1 ⁇ X ⁇ At X2, it is determined that the opening degree K of the low-temperature refrigeration air valve is the seventh preset opening degree K7, where K6 ⁇ K7.
  • the opening degree of the cryogenic refrigeration air valve is determined as The eighth preset opening degree, wherein the seventh preset opening degree is smaller than the eighth preset opening degree.
  • the opening degree K is the eighth preset opening degree K8, where K7 ⁇ K8.
  • control method further includes:
  • the opening degree of the low-temperature refrigeration air valve is determined as The ninth preset opening.
  • the opening degree K is the ninth preset opening degree K9.
  • the opening range of the cryogenic refrigeration air valve is a second preset percentage lower than the first preset range, and the energy demand range of the system energy demand is the first energy demand range, then determine the opening degree of the cryogenic refrigeration air valve Is the tenth preset opening degree, wherein the ninth preset opening degree is smaller than the tenth preset opening degree.
  • the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the first preset range
  • the energy demand range of the system energy demand X is the first energy demand range X1, that is, Xmin ⁇ X ⁇ At X1
  • the opening degree K of the low-temperature refrigeration air valve is the tenth preset opening degree K10, where K9 ⁇ K10.
  • the opening range of the low-temperature refrigeration air valve is lower than the first preset range by a second predetermined percentage, and the energy demand range of the system energy demand is the second energy demand range, then determine the opening degree of the cryogenic refrigeration air valve Is the eleventh preset opening degree, wherein the tenth preset opening degree is smaller than the eleventh preset opening degree.
  • the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the first preset range, and the energy demand range of the system energy demand X is the second energy demand range X2, that is, X1 ⁇ X ⁇ At X2, it is determined that the opening degree K of the low-temperature refrigeration air valve is the eleventh preset opening degree K11, where K10 ⁇ K11.
  • the opening degree of the low-temperature refrigeration air valve is determined as The twelfth preset opening degree, the eleventh preset opening degree is smaller than the twelfth preset opening degree.
  • the opening range of the low-temperature refrigeration air valve is the opening range of the low-temperature refrigeration air valve is a second predetermined percentage lower than the first predetermined range
  • the energy demand range of the system energy demand X is the maximum energy demand In the range Xmax
  • the opening degree K of the low-temperature refrigeration air valve is the twelfth preset opening degree K12, where K11 ⁇ K12.
  • control method further includes:
  • the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range, and the energy demand range of the system energy demand is the minimum energy demand range, determine the opening of the low-temperature refrigeration air valve as the thirteenth preset Opening degree.
  • the opening range of the cryogenic refrigeration air valve is the minimum value of the first preset range
  • the energy demand range where the system energy demand X is located is the minimum energy demand range Xmin
  • the opening degree K of the cryogenic refrigeration air valve is the first Thirteen preset opening degrees K13.
  • the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range, and the energy demand range of the system energy demand is the first energy demand range, then determine the opening of the low-temperature refrigeration air valve as the fourteenth pre Set the opening, where the thirteenth preset opening is less than the fourteenth opening.
  • the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range
  • the energy demand range where the system energy demand X is located is the first energy demand range X1, that is, Xmin ⁇ X ⁇ X1
  • the low temperature is determined
  • the opening K of the cooling air valve is the fourteenth preset opening K14, where K13 ⁇ K14.
  • the opening of the low-temperature refrigeration air valve is determined to be the fifteenth pre Set the opening degree, where the fourteenth preset opening degree is smaller than the fifteenth preset opening degree.
  • the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range
  • the energy demand range where the system energy demand X is located is the second energy demand range X2, that is, X1 ⁇ X ⁇ X2
  • the low temperature is determined
  • the opening K of the cooling air valve is the fifteenth preset opening K15, where K14 ⁇ K15.
  • the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range, and the energy demand range of the system energy demand is the maximum energy demand range, then determine the opening of the low-temperature refrigeration air valve as the sixteenth preset The opening degree, wherein the fifteenth preset opening degree is smaller than the sixteenth preset opening degree.
  • the opening range of the cryogenic refrigeration air valve is the minimum value of the first preset range, and the energy demand range where the system energy demand X is located is the maximum energy demand range Xmax, it is determined that the opening degree K of the cryogenic refrigeration air valve is the first Sixteen preset opening degrees K16, where K15 ⁇ K16.
  • control method further includes:
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range, and the energy demand range of the system energy demand is the minimum energy demand range, then determine the opening of the low-temperature refrigeration air valve as the seventeenth preset Opening degree.
  • the opening range of the cryogenic refrigeration air valve is the maximum value of the second preset range
  • the energy demand range where the system energy demand X is located is the minimum energy demand range Xmin
  • the opening degree K of the cryogenic refrigeration air valve is the first Seventeen preset opening degrees K17.
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range, and the energy demand range of the system energy demand is the first energy demand range, then determine the opening of the low-temperature refrigeration air valve as the eighteenth pre Set the opening, where the seventeenth preset opening is less than the eighteenth preset opening.
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range
  • the energy demand range where the system energy demand X is located is the first energy demand range X1, that is, Xmin ⁇ X ⁇ X1
  • the low temperature is determined
  • the opening K of the cooling air valve is the eighteenth preset opening K18, where K17 ⁇ K18.
  • the opening degree of the low-temperature refrigeration air valve is determined to be the 19th Set the opening degree, wherein the nineteenth preset opening degree is smaller than the eighteenth preset opening degree.
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range
  • the energy demand range where the system energy demand X is located is the second energy demand range X2, that is, X1 ⁇ X ⁇ X2
  • the low temperature is determined
  • the opening K of the cooling air valve is the nineteenth preset opening K19, where K18 ⁇ K19.
  • the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range, and the energy demand range of the system energy demand is the maximum energy demand range, then determine the opening of the low-temperature refrigeration air valve as the twentieth preset The opening degree, wherein the nineteenth preset opening degree is smaller than the twentieth preset opening degree.
  • the opening range of the cryogenic refrigeration air valve is the maximum value of the second preset range
  • the energy demand range where the system energy demand X is located is the maximum energy demand range Xmax
  • the opening degree K of the cryogenic refrigeration air valve is the first Twenty preset opening degrees K20, where K19 ⁇ K20.
  • control method includes:
  • the opening degree of the cryogenic refrigeration air valve is determined as The twenty-first preset opening.
  • the opening degree K is the twenty-first preset opening degree K21.
  • the opening range of the cryogenic refrigeration air valve is reduced by a first preset percentage relative to the second preset range, and the energy demand range of the system energy demand is the first energy demand range, then determine the opening degree of the cryogenic refrigeration air valve Is a twenty-second preset opening degree, wherein the twenty-first preset opening degree is smaller than the twenty-second preset opening degree.
  • the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the second preset range
  • the energy demand range of the system energy demand X is the first energy demand range X1, that is, Xmin ⁇ X ⁇ At X1
  • the opening degree K of the low-temperature refrigeration air valve is the twenty-second preset opening degree K22, where K21 ⁇ K22.
  • the opening degree of the cryogenic refrigeration air valve is determined The twenty-third preset opening degree, wherein the twenty-first preset opening degree is smaller than the twenty-third preset opening degree.
  • the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the second preset range, and the energy demand range of the system energy demand X is the second energy demand range X2, that is, X1 ⁇ X ⁇ At X2, it is determined that the opening degree K of the low-temperature refrigeration air valve is the twenty-third preset opening degree K23, where K22 ⁇ K23.
  • the opening degree of the cryogenic refrigeration air valve is determined as The twenty-fourth preset opening degree, wherein the twenty-third preset opening degree is smaller than the twenty-fourth preset opening degree.
  • the opening degree K is the twenty-fourth preset opening degree K24, where K23 ⁇ K24.
  • control method further includes:
  • the opening degree of the low-temperature refrigeration air valve is determined as The twenty-fifth preset opening.
  • the opening degree K is the twenty-fifth preset opening degree K25.
  • the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the second preset range
  • the energy demand range of the system energy demand X is the first energy demand range X1, that is, Xmin ⁇ X ⁇ At X1
  • the opening degree K of the low-temperature refrigeration air valve is the twenty-sixth preset opening degree K26, where K25 ⁇ K26.
  • the opening degree of the cryogenic refrigeration air valve is determined Is a twenty-seventh preset opening degree, wherein the twenty-sixth preset opening degree is smaller than the twenty-seventh preset opening degree.
  • the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the second preset range, and the energy demand range of the system energy demand X is the second energy demand range X2, that is, X1 ⁇ X ⁇ At X2, it is determined that the opening degree K of the low-temperature refrigeration air valve is the 27th preset opening degree K27, where K26 ⁇ K27.
  • the opening range of the low-temperature refrigeration damper is lower than the second preset range by a second preset percentage, and the energy demand range of the system energy demand is the maximum energy demand, then determine the opening of the low-temperature refrigeration damper as The twenty-eighth preset opening degree is less than the twenty-eighth preset opening degree.
  • the opening degree K is the twenty-eighth preset opening degree K28, where K27 ⁇ K28.
  • control method further includes:
  • the opening range of the low-temperature refrigeration air valve is the minimum value of the second preset range, and the energy demand range of the system energy demand is the minimum energy demand range, then determine the opening of the low-temperature refrigeration air valve to be the twenty-ninth Set the opening.
  • the opening range of the cryogenic refrigeration air valve is the minimum value of the second preset range
  • the energy demand range where the system energy demand X is located is the minimum energy demand range Xmin
  • the opening degree K of the cryogenic refrigeration air valve is the first Twenty-nine preset opening degree K29.
  • the opening range of the cryogenic refrigeration air valve is the minimum value of the second preset range, and the energy demand range of the system energy demand is the first energy demand range, then determine the opening degree of the cryogenic refrigeration air valve to be the thirtieth pre Set the opening degree, wherein the twenty-ninth preset opening degree is less than the thirtieth opening degree.
  • the opening range of the low-temperature refrigeration air valve is the minimum value of the second preset range
  • the energy demand range where the system energy demand X is located is the first energy demand range X1, that is, Xmin ⁇ X ⁇ X1
  • the low temperature is determined
  • the opening K of the cooling air valve is the thirtieth preset opening K30, where K29 ⁇ K30.
  • the opening degree of the cryogenic refrigeration air valve is determined to be thirty-first The preset opening degree, wherein the thirtieth preset opening degree is smaller than the thirty-first preset opening degree.
  • the opening degree K of the cooling air valve is the thirty-first preset opening degree K31, where K30 ⁇ K31.
  • the opening degree of the low-temperature refrigeration air valve is determined to be the 32nd Set the opening degree, wherein the thirty-first preset opening degree is smaller than the thirty-second preset opening degree.
  • the opening range of the cryogenic refrigeration air valve is the minimum value of the second preset range, and the energy demand range where the system energy demand X is located is the maximum energy demand range Xmax, it is determined that the opening degree K of the cryogenic refrigeration air valve is the first Thirty-two preset opening degrees K32, where K31 ⁇ K32.
  • the refrigeration system first determines the opening range of the low-temperature refrigeration air valve according to the actual system pressure Ps as the first preset range, and then further according to the ambient temperature Ts It is determined that the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the first preset range, and the opening K of the low-temperature refrigeration air valve is determined as the seventh preset opening K7 according to the system energy demand X.
  • the opening range of the low-temperature refrigeration air valve may also be determined according to the ambient temperature Ts or the system energy demand X, and the low-temperature refrigeration air may be further determined according to the system pressure Ps or the system energy demand X
  • the valve opening range determines the opening K of the low-temperature refrigeration air valve based on the system pressure Ps or the ambient temperature Ts.
  • the actual system pressure, the ambient temperature and the system energy demand are obtained, and the opening of the low-temperature refrigeration air valve is determined according to the actual system pressure, the ambient temperature and the system energy demand . Therefore, according to the high pressure of the system, the ambient temperature, and the system's ability to control the low-temperature refrigeration air valve, the opening range of the low-temperature refrigeration air valve can be refined, and the opening of the low-temperature refrigeration air valve can be determined, which is beneficial to multi-line at ultra-low temperature At the same time, the cooling operation in the environment increases the reliability of low-temperature cooling operation and expands the cooling operation range.
  • FIG. 13 is a block schematic diagram of a control device for a low-temperature refrigeration air valve according to an embodiment of the present invention.
  • control device 100 of the low-temperature refrigeration air valve includes: an acquisition module 1 and a determination module 2.
  • the obtaining module 1 is used to obtain the actual system pressure, ambient temperature and system energy demand; the determining module 2 is used to determine the opening of the low-temperature refrigeration air valve according to the actual system pressure, ambient temperature and system energy demand.
  • the system's ability to control the low-temperature refrigeration air valve refine the opening range of the low-temperature refrigeration air valve, and determine the opening of the low-temperature refrigeration air valve, which is conducive to multi-line in ultra-low temperature environment Under the cooling operation, at the same time, increase the reliability of low-temperature cooling operation, and expand the scope of cooling operation.
  • the actual pressure of the system may be the compressor discharge pressure or the condenser condensation pressure.
  • the determining module 2 is further used to: if the actual pressure of the system is greater than the maximum preset pressure value, determine the opening degree of the cryogenic refrigeration air valve to be fully open; if the actual pressure of the system is less than or equal to the maximum If the preset pressure value is greater than the second preset pressure value, the opening range of the low-temperature refrigeration air valve is determined to be the first preset range; if the actual system pressure is less than or equal to the second preset pressure value and greater than the third preset pressure value Set the pressure value to determine the opening range of the low-temperature refrigeration air valve as the second preset range, where the second preset range is less than the first preset range; if the actual system pressure is less than the minimum preset pressure value, the low-temperature refrigeration is determined The opening of the damper is fully closed.
  • the determination module 2 is further configured to: if the opening range of the low-temperature refrigeration air valve is the first preset range, and the ambient temperature is greater than the maximum preset temperature value, further determine the low-temperature refrigeration air The opening range of the valve is the maximum value of the first preset range; if the opening range of the low-temperature refrigeration air valve is the first preset range, and the ambient temperature is less than or equal to the maximum preset temperature value and greater than the second preset temperature Value, it is further determined that the opening range of the cryogenic refrigeration air valve is reduced by a first preset percentage relative to the first preset range; if the opening range of the cryogenic refrigeration air valve is the first preset range and the ambient temperature is less than or equal to The second preset temperature value is greater than the third preset temperature value, then it is further determined that the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the first preset range, where the first preset percentage is less than The second preset percentage;
  • the determination module 2 is further configured to: if the opening range of the low-temperature refrigeration air valve is the second preset range, and the ambient temperature is greater than the maximum preset temperature value, further determine the low-temperature refrigeration air The opening range of the valve is the maximum value of the second preset range; if the opening range of the low-temperature refrigeration air valve is the second preset range, and the ambient temperature is less than or equal to the maximum preset temperature value and greater than the second preset temperature Value, it is further determined that the opening range of the cryogenic refrigeration air valve is reduced by a first preset percentage relative to the second preset range; if the opening range of the cryogenic refrigeration air valve is the second preset range and the ambient temperature is less than or equal to The second preset temperature value is greater than the third preset temperature value, and it is further determined that the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the second preset range, where the first preset percentage is less than The second preset percentage;
  • the determining module 2 is further used for: if the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range, and the energy demand range where the system energy demand is the minimum energy demand range , It is determined that the opening of the low-temperature refrigeration air valve is the first preset opening; if the opening range of the low-temperature refrigeration air valve is the maximum value of the first preset range, and the energy demand of the system is the first energy demand Range, it is determined that the opening of the low-temperature refrigeration air valve is the second preset opening, where the first preset opening is less than the second preset opening; if the opening range of the low-temperature refrigeration air valve is the first preset range Maximum value, and the energy demand range of the system energy demand is the second energy demand range, then the opening of the low-temperature refrigeration air valve is determined to be the third preset opening, where the second preset opening is less than the third preset opening Degree, the first energy demand range is less than the second energy demand range;
  • the determining module 2 is further used to: if the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the first preset range, and the system needs the energy demand range Is the minimum energy demand range, then determine the opening of the cryogenic refrigeration air valve as the fifth preset opening; if the opening range of the cryogenic refrigeration air valve is reduced by the first preset percentage relative to the first preset range, and the system is capable of If the energy demand range is the first energy demand range, the opening of the low-temperature refrigeration air valve is determined to be the sixth preset opening, where the fifth preset opening is less than the sixth preset opening; if the low-temperature refrigeration air valve The opening range of is a first preset percentage lower than the first preset range, and the energy demand range of the system is the second energy demand range, then the opening of the low-temperature refrigeration air valve is determined as the seventh preset opening , Where the sixth preset opening is less than the seventh preset opening; if the opening range of
  • the determination module 2 is further used to: if the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the first preset range, and the system needs the energy demand range Is the minimum energy demand range, then determine the opening of the low-temperature refrigeration air valve as the ninth preset opening; if the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the first preset range, and the system can If the energy demand range of the demand is the first energy demand range, the opening of the cryogenic refrigeration air valve is determined to be the tenth preset opening, where the ninth preset opening is less than the tenth preset opening; if the cryogenic refrigeration air valve The opening range of is lower than the first preset range by a second preset percentage, and the energy demand of the system is the second energy demand, then the opening of the low-temperature refrigeration air valve is determined to be the eleventh preset opening Degrees, where the tenth preset opening is less than the eleventh
  • the determining module 2 is further used: if the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range, and the energy demand range where the system energy demand is the minimum energy demand range , The opening of the low-temperature refrigeration air valve is determined to be the thirteenth preset opening; if the opening range of the low-temperature refrigeration air valve is the minimum value of the first preset range, and the energy demand of the system is the first energy If the range is required, the opening of the low-temperature refrigeration air valve is determined to be the fourteenth preset opening, where the thirteenth predetermined opening is less than the fourteenth opening; if the opening range of the low-temperature refrigeration air valve is the first preset Set the minimum value of the range, and the energy demand range of the system energy demand is the second energy demand range, then determine the opening of the low-temperature refrigeration air valve as the fifteenth preset opening, where the fourteenth preset opening is less than the Fifteen preset openings; if the opening range of the
  • the determining module 2 is further used: if the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range, and the energy demand range of the system energy demand is the minimum energy demand range , The opening of the low-temperature refrigeration air valve is determined to be the seventeenth preset opening; if the opening range of the low-temperature refrigeration air valve is the maximum value of the second preset range, and the energy demand of the system is the first energy If the range is required, the opening of the cryogenic refrigeration air valve is determined to be the eighteenth preset opening, where the seventeenth preset opening is less than the eighteenth preset opening; if the opening range of the cryogenic refrigeration air valve is The maximum value of the two preset ranges, and the energy demand range of the system energy demand is the second energy demand range, then the opening of the low-temperature refrigeration air valve is determined to be the nineteenth preset opening, where the nineteenth preset opening Less than the eighteenth preset opening degree; if the opening range
  • the determining module 2 is further used to: if the opening range of the low-temperature refrigeration air valve is reduced by a first preset percentage relative to the second preset range, and the system needs the energy demand range Is the minimum energy demand range, then determine the opening of the cryogenic refrigeration air valve to be the twenty-first preset opening; if the opening range of the cryogenic refrigeration air valve is reduced by the first preset percentage relative to the second preset range, and If the energy demand range of the system is the first energy demand range, the opening of the low-temperature refrigeration air valve is determined to be the twenty-second preset opening, where the twenty-first preset opening is less than the twenty-second preset Opening; if the opening range of the low-temperature refrigeration damper is reduced by a first preset percentage relative to the second preset range, and the energy demand of the system is the second energy demand, then determine the opening of the low-temperature refrigeration damper The degree is the twenty-third preset opening degree, where the twenty-first preset opening degree is less
  • the determining module 2 is further used for: if the opening range of the low-temperature refrigeration air valve is reduced by a second preset percentage relative to the second preset range, and the system needs the energy demand range Is the minimum energy demand range, then determine the opening of the low-temperature refrigeration air valve to be the twenty-fifth preset opening; if the opening range of the low-temperature refrigeration air valve is reduced by the second preset percentage relative to the second preset range, and If the energy demand range of the system is the first energy demand range, then the opening of the low-temperature refrigeration air valve is determined to be the twenty-sixth preset opening, where the twenty-fifth preset opening is less than the twenty-sixth preset Opening; if the opening range of the low-temperature refrigeration damper is reduced by a second preset percentage relative to the second preset range, and the energy demand of the system is the second energy demand, then determine the opening of the low-temperature refrigeration damper The degree is the twenty-seventh prese
  • the determining module 2 is further used: if the opening range of the low-temperature refrigeration air valve is the minimum value of the second preset range, and the energy demand range where the system energy demand is the minimum energy demand range , The opening of the low-temperature refrigeration air valve is determined to be the twenty-ninth preset opening; if the opening range of the low-temperature refrigeration air valve is the minimum of the second preset range, and the energy demand of the system is the first The range of energy demand, then determine the opening of the low-temperature refrigeration air valve as the thirtieth preset opening, where the twenty-ninth preset opening is less than the thirtieth opening; if the opening range of the low-temperature refrigeration air valve is as The minimum value of the two preset ranges, and the energy demand range of the system energy demand is the second energy demand range, then the opening of the low-temperature refrigeration air valve is determined to be the thirty-first preset opening, of which, the thirtieth preset opening The degree is less than
  • the control device of the low-temperature refrigeration air valve provided in the embodiment of the present invention corresponds to the aforementioned low-temperature refrigeration air valve control method in one-to-one correspondence, and details are not repeated here.
  • the actual pressure, the ambient temperature and the system energy demand of the system are obtained through the acquisition module, and the actual pressure, the ambient temperature and The system can determine the opening of the low-temperature refrigeration air valve, and can control the low-temperature refrigeration air valve according to the high pressure of the system, the ambient temperature and the system energy requirements, refine the opening range of the low-temperature refrigeration air valve, and determine the low-temperature refrigeration air valve
  • the opening degree is conducive to multi-line refrigeration operation in ultra-low temperature environment, at the same time, increase the reliability of low temperature refrigeration operation and expand the scope of refrigeration operation.
  • a "computer-readable medium” may be any device that can contain, store, communicate, propagate, or transmit a program for use by or in connection with an instruction execution system, apparatus, or device.
  • computer-readable media include the following: electrical connections (electronic devices) with one or more wires, portable computer cartridges (magnetic devices), random access memory (RAM), Read only memory (ROM), erasable and editable read only memory (EPROM or flash memory), fiber optic devices, and portable compact disk read only memory (CDROM).
  • the computer-readable medium may even be paper or other suitable medium on which the program can be printed, because, for example, by optically scanning the paper or other medium, followed by editing, interpretation, or other appropriate if necessary Process to obtain the program electronically and then store it in computer memory.
  • each part of the present invention may be implemented by hardware, software, firmware, or a combination thereof.
  • multiple steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system.
  • a logic gate circuit for implementing a logic function on a data signal
  • PGA programmable gate arrays
  • FPGA field programmable gate arrays
  • first and second are used for description purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.
  • the features defined as “first” and “second” may include at least one of the features explicitly or implicitly.
  • the meaning of “plurality” is at least two, such as two, three, etc., unless specifically defined otherwise.
  • connection In the present invention, unless otherwise clearly specified and defined, the terms “installation”, “connection”, “connection”, “fixation” and other terms should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection , Or integrated; may be mechanical connection or electrical connection; may be directly connected, or may be indirectly connected through an intermediary, may be the connection between two elements or the interaction between two elements, unless otherwise specified Limit. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.
  • the first feature is "on” or “below” the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly through an intermediary contact.
  • the first feature is “above”, “above” and “above” the second feature may be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature.
  • the first feature is “below”, “below”, and “below” the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is less horizontal than the second feature.

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Abstract

一种低温制冷风阀的控制方法及装置，方法包括：获取系统实际压力、环境温度和系统能需；根据系统实际压力、环境温度和系统能需确定低温制冷风阀的开度。通过该控制方法，根据系统高压、环境温度以及系统能需对低温制冷风阀进行耦合控制，能够细化低温制冷风阀的开度范围，并确定低温制冷风阀的开度，有利于多联机在超低温环境下的制冷运行，同时，增加低温制冷运行的可靠性，并拓展制冷运行范围。

Description

低温制冷风阀的控制方法及装置 技术领域
本发明涉及空调技术领域，尤其涉及一种低温制冷风阀的控制方法和一种低温制冷风阀的控制装置。
背景技术
随着市场需求的不断增加，外界环境温度较低时的制冷能力越来越受到用户的关注。然而，在外界低温环境中，室外机冷凝器的冷凝温度与环境温度温差太大，冷凝散热量太大，容易造成系统高压低低压低，换热器积液，压缩机启动困难等一系列的问题。
目前，相关技术包括优化多联机空调的控制策略，例如减小室外机风机的转速，关闭部分换热器，通过设计将部分外换热器从冷凝器切换为蒸发器，控制系统中节流部件的开度等方式。
但相关技术的问题在于，在超低温环境(例如-15℃以下)下，换热器与空气的对流换热依然无法匹配制冷负荷的要求，无法满足制冷需求。
发明内容
本发明旨在至少在一定程度上解决相关技术中的技术问题之一。为此，本发明的第一个目的在于提出一种低温制冷风阀的控制方法，能够细化低温制冷风阀的开度范围，并确定低温制冷风阀的开度，有利于多联机在超低温环境下的制冷运行，同时，增加低温制冷运行的可靠性，并拓展制冷运行范围。
本发明的第二个目的在于提出一种低温制冷风阀的控制装置。
为达到上述目的，本发明第一方面实施例提出的一种低温制冷风阀的控制方法包括：获取系统实际压力、环境温度和系统能需；根据所述系统实际压力、所述环境温度和所述系统能需确定低温制冷风阀的开度。
根据本发明实施例提出的低温制冷风阀的控制方法，获取系统实际压力、环境温度和系统能需，并根据系统实际压力、环境温度和系统能需确定低温制冷风阀的开度。由此，根据系统高压，环境温度以及系统能需对低温制冷风阀进行耦合控制，能够细化低温制冷风阀的开度范围，并确定低温制冷风阀的开度，有利于多联机在超低温环境下的制冷运行，同时，增加低温制冷运行的可靠性，并拓展制冷运行范围。
另外，根据本发明上述实施例的低温制冷风阀的控制方法还可以具有如下附加的技术特征：
根据本发明的一个实施例，所述系统实际压力为压缩机排气压力或冷凝器冷凝压力。
根据本发明的一个实施例，所述根据所述系统实际压力、所述环境温度和所述系统能需，确定低温制冷风阀的开度具体包括：如果所述系统实际压力大于最大预设压力值，则确定所述低温制冷风阀的开度为全开；如果所述系统实际压力小于或等于所述最大预设压力值，且大于第二预设压力值，则确定所述低温制冷风阀的开度范围为第一预设范围；如果所述系统实际压力小于或等于所述第二预设压力值，且大于第三预设压力值，则确定所述低温制冷风阀的开度范围为第二预设范围，其中，所述第二预设范围小于所述第一预设范围；如果所述系统实际压力小于最小预设压力值，则确定所述低温制冷风阀的开度为全闭。
根据本发明的一个实施例，所述控制方法还包括：如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度大于最大预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第一预设范围的最大值；如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于或等于所述最大预设温度值，并大于第二预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比；如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于或等于所述第二预设温度值，并大于第三预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，其中，所述第一预设百分比小于所述第二预设百分比；如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于最低预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第一预设范围的最小值。
根据本发明的一个实施例，如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度大于最大预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第二预设范围的最大值；如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于或等于所述最大预设温度值，并大于第二预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比；如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于或等于所述第二预设温度值，并大于第三预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，其中，所述第一预设百分比小于所述第二预设百分比；如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于最小预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第二预设范围的最小值。
根据本发明的一个实施例，如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为最小能需范围，则确定所述低温制冷风阀的开度 为第一预设开度；如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为第一能需范围，则确定所述低温制冷风阀的开度为第二预设开度，其中，所述第一预设开度小于所述第二预设开度；如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为第二能需范围，则确定所述低温制冷风阀的开度为第三预设开度，其中，所述第二预设开度小于所述第三预设开度，所述第一能需范围小于所述第二能需范围；如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为最大能需范围，则确定所述低温制冷风阀的开度为第四预设开度，其中，所述第三预设开度小于所述第四预设开度。
根据本发明的一个实施例，如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第五预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第六预设开度，其中，所述第五预设开度小于第六预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第七预设开度，其中，所述第六预设开度小于所述第七预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第八预设开度，其中，所述第七预设开度小于所述第八预设开度。
根据本发明的一个实施例，如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第九预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第十预设开度，其中，所述第九预设开度小于所述第十预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第十一预设开度，其中，所述第十预设开度小于所述第十一预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第十二预设开度，所述第十一预设开度小于所述第十二预设开度。
根据本发明的一个实施例，如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的 开度为第十三预设开度；如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第十四预设开度，其中，所述第十三预设开度小于所述第十四开度；如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第十五预设开度，其中，所述第十四预设开度小于第十五预设开度；如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第十六预设开度，其中，所述第十五预设开度小于第十六预设开度。
根据本发明的一个实施例，如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为最小能需范围，则确定所述低温制冷风阀的开度为第十七预设开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为第一能需范围，则确定所述低温制冷风阀的开度为第十八预设开度，其中，所述第十七预设开度小于所述第十八预设开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为第二能需范围，则确定所述低温制冷风阀的开度为第十九预设开度，其中，所述第十九预设开度小于所述第十八预设开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为最大能需范围，则确定所述低温制冷风阀的开度为第二十预设开度，其中，所述第十九预设开度小于所述第二十预设开度。
根据本发明的一个实施例，如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十一预设开度；如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第二十二预设开度，其中，所述第二十一预设开度小于第二十二预设开度；如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第二十三预设开度，其中，所述第二十一预设开度小于所述第二十三预设开度；如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第二十四预设开度，其中，所述第二十三预设开度小于所述第二十四预设开度。
根据本发明的一个实施例，如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十五预设开度；如果所述低温制冷风阀的开度范围为相对于 所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第二十六预设开度，其中，所述第二十五预设开度小于所述第二十六预设开度；如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第二十七预设开度，其中，所述第二十六预设开度小于所述第二十七预设开度；如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第二十八预设开度，所述第二十七预设开度小于所述第二十八预设开度。
根据本发明的一个实施例，如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十九预设开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第三十预设开度，其中，所述第二十九预设开度小于所述第三十开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第三十一预设开度，其中，所述第三十预设开度小于第三十一预设开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第三十二预设开度，其中，所述第三十一预设开度小于第三十二预设开度。
为达到上述目的，本发明第二方面实施例提出的一种低温制冷风阀的控制装置包括：获取模块，用于获取系统实际压力、环境温度和系统能需；确定模块，用于根据所述系统实际压力、所述环境温度和所述系统能需确定低温制冷风阀的开度。
根据本发明实施例提出的低温制冷风阀的控制装置，通过获取模块获取系统实际压力、环境温度和系统能需，并通过确定模块根据所述系统实际压力、所述环境温度和所述系统能需确定低温制冷风阀的开度，能够根据系统高压，环境温度以及系统能需对低温制冷风阀进行耦合控制，细化低温制冷风阀的开度范围，并确定低温制冷风阀的开度，有利于多联机在超低温环境下的制冷运行，同时，增加低温制冷运行的可靠性，并拓展制冷运行范围。
另外，根据本发明上述实施例的低温制冷风阀的控制装置还可以具有如下附加的技术特征：
根据本发明的一个实施例，所述系统实际压力为压缩机排气压力或冷凝器冷凝压力。
根据本发明的一个实施例，所述确定模块还用于：如果所述系统实际压力大于最大预设压力值，则确定所述低温制冷风阀的开度为全开；如果所述系统实际压力小于或等于所 述最大预设压力值，且大于第二预设压力值，则确定所述低温制冷风阀的开度范围为第一预设范围；如果所述系统实际压力小于或等于所述第二预设压力值，且大于第三预设压力值，则确定所述低温制冷风阀的开度范围为第二预设范围，其中，所述第二预设范围小于所述第一预设范围；如果所述系统实际压力小于最小预设压力值，则确定所述低温制冷风阀的开度为全闭。
根据本发明的一个实施例，所述确定模块还用于：如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度大于最大预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第一预设范围的最大值；如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于或等于所述最大预设温度值，并大于第二预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比；如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于或等于所述第二预设温度值，并大于第三预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，其中，所述第一预设百分比小于所述第二预设百分比；如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于最低预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第一预设范围的最小值。
根据本发明的一个实施例，所述确定模块还用于：如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度大于最大预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第二预设范围的最大值；如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于或等于所述最大预设温度值，并大于第二预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比；如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于或等于所述第二预设温度值，并大于第三预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，其中，所述第一预设百分比小于所述第二预设百分比；如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于最小预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第二预设范围的最小值。
根据本发明的一个实施例，所述确定模块还用于：如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为最小能需范围，则确定所述低温制冷风阀的开度为第一预设开度；如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为第一能需范围，则确定所述低温制冷风阀的开度为第二预设开度，其中，所述第一预设开度小于所述第二预设开度；如果所述低 温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为第二能需范围，则确定所述低温制冷风阀的开度为第三预设开度，其中，所述第二预设开度小于所述第三预设开度，所述第一能需范围小于所述第二能需范围；如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为最大能需范围，则确定所述低温制冷风阀的开度为第四预设开度，其中，所述第三预设开度小于所述第四预设开度。
根据本发明的一个实施例，所述确定模块还用于：如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第五预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第六预设开度，其中，所述第五预设开度小于第六预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第七预设开度，其中，所述第六预设开度小于所述第七预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第八预设开度，其中，所述第七预设开度小于所述第八预设开度。
根据本发明的一个实施例，所述确定模块还用于：如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第九预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第十预设开度，其中，所述第九预设开度小于所述第十预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第十一预设开度，其中，所述第十预设开度小于所述第十一预设开度；如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第十二预设开度，所述第十一预设开度小于所述第十二预设开度。
根据本发明的一个实施例，所述确定模块还用于：如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第十三预设开度；如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述第一能需范围，则确定所述 低温制冷风阀的开度为第十四预设开度，其中，所述第十三预设开度小于所述第十四开度；如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第十五预设开度，其中，所述第十四预设开度小于第十五预设开度；如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第十六预设开度，其中，所述第十五预设开度小于第十六预设开度。
根据本发明的一个实施例，所述确定模块还用于：如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为最小能需范围，则确定所述低温制冷风阀的开度为第十七预设开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为第一能需范围，则确定所述低温制冷风阀的开度为第十八预设开度，其中，所述第十七预设开度小于所述第十八预设开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为第二能需范围，则确定所述低温制冷风阀的开度为第十九预设开度，其中，所述第十九预设开度小于所述第十八预设开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为最大能需范围，则确定所述低温制冷风阀的开度为第二十预设开度，其中，所述第十九预设开度小于所述第二十预设开度。
根据本发明的一个实施例，所述确定模块还用于：如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十一预设开度；如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第二十二预设开度，其中，所述第二十一预设开度小于第二十二预设开度；如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第二十三预设开度，其中，所述第二十一预设开度小于所述第二十三预设开度；如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第二十四预设开度，其中，所述第二十三预设开度小于所述第二十四预设开度。
根据本发明的一个实施例，所述确定模块还用于：如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十五预设开度；如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需 范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第二十六预设开度，其中，所述第二十五预设开度小于所述第二十六预设开度；如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第二十七预设开度，其中，所述第二十六预设开度小于所述第二十七预设开度；如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第二十八预设开度，所述第二十七预设开度小于所述第二十八预设开度。
根据本发明的一个实施例，所述确定模块还用于：如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十九预设开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第三十预设开度，其中，所述第二十九预设开度小于所述第三十开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第三十一预设开度，其中，所述第三十预设开度小于第三十一预设开度；如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度。
本发明附加的方面和优点将在下面的描述中部分给出，部分将从下面的描述中变得明显，或通过本发明的实践了解到。
附图说明
图1为根据本发明实施例的低温制冷风阀的控制方法的流程示意图；
图2为根据本发明一个实施例的根据系统实际压力确定低温制冷风阀的开度范围的控制方法的流程示意图；
图3为根据本发明一个实施例的根据环境温度进一步确定低温制冷风阀的开度范围的控制方法的流程示意图；
图4为根据本发明另一个实施例的根据环境温度进一步确定低温制冷风阀的开度范围的控制方法的流程示意图；
图5为根据本发明第一个具体实施例的根据系统能需确定低温制冷风阀的开度的控制方法的流程示意图；
图6为根据本发明第一个具体实施例的根据系统能需确定低温制冷风阀的开度的控制 方法的流程示意图；
图7为根据本发明第二个具体实施例的根据系统能需确定低温制冷风阀的开度的控制方法的流程示意图；
图8为根据本发明第三个具体实施例的根据系统能需确定低温制冷风阀的开度的控制方法的流程示意图；
图9为根据本发明第四个具体实施例的根据系统能需确定低温制冷风阀的开度的控制方法的流程示意图；
图10为根据本发明第五个具体实施例的根据系统能需确定低温制冷风阀的开度的控制方法的流程示意图；
图11为根据本发明第六个具体实施例的根据系统能需确定低温制冷风阀的开度的控制方法的流程示意图；
图12为根据本发明第七个具体实施例的根据系统能需确定低温制冷风阀的开度的控制方法的流程示意图；
图13为根据本发明实施例的低温制冷风阀的控制装置的方框示意图。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限制。
下面参考附图描述本发明实施例的低温制冷风阀的控制方法及装置。
图1为根据本发明实施例的低温制冷风阀的控制方法的流程示意图。
如图1所示，低温制冷风阀的控制方法包括：
S101，获取系统实际压力、环境温度和系统能需。
具体地，根据本发明的一个实施例，系统实际压力Ps可为压缩机排气压力或冷凝器冷凝压力。也就是说，可通过在制冷系统的压缩机出口至外机换热器之间的任意位置设置压力传感器，以获取系统实际压力Ps。
进一步地，在制冷系统中，可通过在室外机上设置温度传感器，以获取当前环境温度Ts。以及，可根据用户设定的设定温度，获取制冷系统的系统能需X。
S102，根据系统实际压力、环境温度和系统能需确定低温制冷风阀的开度。
具体地，如图2所示，根据本发明的一个实施例，根据系统实际压力Ps、环境温度Ts和系统能需X，确定低温制冷风阀的开度K具体包括：
S201，如果系统实际压力大于最大预设压力值，则确定低温制冷风阀的开度为全开。
也就是说，当系统实际压力Ps大于最大预设压力值Pmax，即Ps＞Pmax时，确定低温制冷风阀的开度K为完全打开。
S202，如果系统实际压力小于或等于最大预设压力值，且大于第二预设压力值，则确定低温制冷风阀的开度范围为第一预设范围。
也就是说，当系统实际压力Ps小于或等于最大预设压力值Pmax，且大于第二预设压力值P2，即P2＜Ps≤Pmax时，确定低温制冷风阀的开度范围为第一预设范围，其中，预设范围可通过事先设定，例如可设定第一预设范围为80％～100％。
S203，如果系统实际压力小于或等于第二预设压力值，且大于第三预设压力值，则确定低温制冷风阀的开度范围为第二预设范围，其中，第二预设范围小于第一预设范围。
也就是说，当系统实际压力Ps小于或等于第二预设压力值P2，且大于第三预设压力值P3，即P3＜Ps≤P2时，确定低温制冷风阀的开度范围为第二预设范围，例如可设定第二预设范围为60％～80％。
需要说明的是，预设范围可以为多个预设范围，制冷系统可根据系统实际压力所在的压力范围，选择对应的预设范围，进而，确定低温制冷风阀的开度范围。
S204，如果系统实际压力小于最小预设压力值，则确定低温制冷风阀的开度为全闭。
也就是说，当系统实际压力Ps小于最小预设压力值Pmin，即Ps＜Pmin时，确定低温制冷风阀的开度K为完全关闭。
进一步地，如图3所示，根据本发明的一个实施例，控制方法还包括：
S301，如果低温制冷风阀的开度范围为第一预设范围，且环境温度大于最大预设温度值，则进一步确定低温制冷风阀的开度范围为第一预设范围的最大值。
也就是说，当低温制冷风阀的开度范围为第一预设范围，例如80％～100％，且环境温度Ts大于最大预设温度值Tmax，即Ts＞Tmax时，进一步确定低温制冷风阀的开度范围为第一预设范围的最大值，例如，可确定低温制冷风阀的开度范围为100％。
S302，如果低温制冷风阀的开度范围为第一预设范围，且环境温度小于或等于最大预设温度值，并大于第二预设温度值，则进一步确定低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比。
也就是说，当低温制冷风阀的开度范围为第一预设范围，例如80％～100％，且环境温度Ts小于或等于最大预设温度值Tmax，并大于第二预设温度值T2，即T2＜Ts≤Tmax时，进一步确定低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，其中，第一预设百分比可通过事先设定，例如，可设定第一预设百分比为0％～5％，即确定低温制冷风阀的开度范围为95％～100％。
S303，如果低温制冷风阀的开度范围为第一预设范围，且环境温度小于或等于第二预 设温度值，并大于第三预设温度值，则进一步确定低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，其中，第一预设百分比小于第二预设百分比。
也就是说，当低温制冷风阀的开度范围为第一预设范围，例如80％～100％，且环境温度Ts小于或等于第二预设温度值T2，并大于第三预设温度值T3，即T3＜Ts≤T2时，进一步确定低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，其中，第二预设百分比可通过事先设定，例如，可设定第二预设百分比为5％～10％，即确定低温制冷风阀的开度范围为90％～95％。
S304，如果低温制冷风阀的开度范围为第一预设范围，且环境温度小于最低预设温度值，则进一步确定低温制冷风阀的开度范围为第一预设范围的最小值。
也就是说，当低温制冷风阀的开度范围为第一预设范围，例如80％～100％，且环境温度Ts小于最小预设温度值Tmin，即Ts＜Tmin时，进一步确定低温制冷风阀的开度范围为第一预设范围的最小值，例如，可确定低温制冷风阀的开度范围为80％。
进一步地，如图4所示，根据本发明的一个实施例，控制方法还包括：
S401，如果低温制冷风阀的开度范围为第二预设范围，且环境温度大于最大预设温度值，则进一步确定低温制冷风阀的开度范围为第二预设范围的最大值。
也就是说，当低温制冷风阀的开度范围为第二预设范围，例如60％～80％，且环境温度Ts大于最大预设温度值Tmax，即Ts＞Tmax时，进一步确定低温制冷风阀的开度范围为第二预设范围的最大值，例如，可确定低温制冷风阀的开度范围为80％。
S402，如果低温制冷风阀的开度范围为第二预设范围，且环境温度小于或等于最大预设温度值，并大于第二预设温度值，则进一步确定低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比。
也就是说，当低温制冷风阀的开度范围为第二预设范围，例如60％～80％，且环境温度Ts小于或等于最大预设温度值Tmax，并大于第二预设温度值T2，即T2＜Ts≤Tmax时，进一步确定低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，例如，可确定低温制冷风阀的开度范围为75％～80％。
S403，如果低温制冷风阀的开度范围为第二预设范围，且环境温度小于或等于第二预设温度值，并大于第三预设温度值，则进一步确定低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，其中，第一预设百分比小于第二预设百分比。
也就是说，当低温制冷风阀的开度范围为第二预设范围，例如60％～80％，且环境温度Ts小于或等于第二预设温度值T2，并大于第三预设温度值T3，即T3＜Ts≤T2时，进一步确定低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，例如，可确定低温制冷风阀的开度范围为70％～75％。
S404，如果低温制冷风阀的开度范围为第二预设范围，且环境温度小于最小预设温度值，则进一步确定低温制冷风阀的开度范围为第二预设范围的最小值。
也就是说，当低温制冷风阀的开度范围为第二预设范围，例如60％～80％，且环境温度Ts小于最小预设温度值Tmin，即Ts＜Tmin时，进一步确定低温制冷风阀的开度范围为第二预设范围的最小值，例如，可确定低温制冷风阀的开度范围为60％。
进一步地，如图5所示，根据本发明的一个实施例，控制方法还包括：
S10，如果低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第一预设开度。
也就是说，当低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需X所在能需范围为最小能需范围Xmin，确定低温制冷风阀的开度K为第一预设开度K1。
S11，如果低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第二预设开度，其中，第一预设开度小于第二预设开度。
也就是说，当低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需X所在能需范围为第一能需范围X1，即Xmin＜X≤X1时，确定低温制冷风阀的开度K为第二预设开度K2，其中，K1＜K2。
S12，如果低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第三预设开度，其中，第二预设开度小于第三预设开度，第一能需范围小于第二能需范围。
也就是说，当低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需X所在能需范围为第二能需范围X2，即X1＜X≤X2时，确定低温制冷风阀的开度K为第三预设开度K3，其中，K2＜K3。
S13，如果低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第四预设开度，其中，第三预设开度小于第四预设开度。
也就是说，当低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需X所在能需范围为最大能需范围Xmax，确定低温制冷风阀的开度K为第四预设开度K4，其中，K3＜K4。
进一步地，如图6所示，根据本发明的一个实施例，控制方法还包括：
S20，如果低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第五预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比， 且系统能需X所在能需范围为最小能需范围Xmin，确定低温制冷风阀的开度K为第五预设开度K5。
S21，如果低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第六预设开度，其中，第五预设开度小于第六预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，且系统能需X所在能需范围为第一能需范围X1，即Xmin＜X≤X1时，确定低温制冷风阀的开度K为第六预设开度K6，其中，K5＜K6。
S22，如果低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第七预设开度，其中，第六预设开度小于第七预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，且系统能需X所在能需范围为第二能需范围X2，即X1＜X≤X2时，确定低温制冷风阀的开度K为第七预设开度K7，其中，K6＜K7。
S23，如果低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第八预设开度，其中，第七预设开度小于第八预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，且系统能需X所在能需范围为最大能需范围Xmax，确定低温制冷风阀的开度K为第八预设开度K8，其中，K7＜K8。
进一步地，如图7所示，根据本发明的一个实施例，控制方法还包括：
S30，如果低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第九预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需X所在能需范围为最小能需范围Xmin，确定低温制冷风阀的开度K为第九预设开度K9。
S31，如果低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第十预设开度，其中，第九预设开度小于第十预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需X所在能需范围为第一能需范围X1，即Xmin＜X≤X1时，确定低温制冷风阀的开度K为第十预设开度K10，其中，K9＜K10。
S32，如果低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第十一预设开度，其中，第十预设开度小于第十一预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需X所在能需范围为第二能需范围X2，即X1＜X≤X2时，确定低温制冷风阀的开度K为第十一预设开度K11，其中，K10＜K11。
S33，如果低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第十二预设开度，第十一预设开度小于第十二预设开度。
也就是说，当低温制冷风阀的开度范围为低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需X所在能需范围为最大能需范围Xmax，确定低温制冷风阀的开度K为第十二预设开度K12，其中，K11＜K12。
进一步地，如图8所示，根据本发明的一个实施例，控制方法还包括：
S40，如果低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第十三预设开度。
也就是说，当低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需X所在能需范围为最小能需范围Xmin，确定低温制冷风阀的开度K为第十三预设开度K13。
S41，如果低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第十四预设开度，其中，第十三预设开度小于第十四开度。
也就是说，当低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需X所在能需范围为第一能需范围X1，即Xmin＜X≤X1时，确定低温制冷风阀的开度K为第十四预设开度K14，其中，K13＜K14。
S42，如果低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第十五预设开度，其中，第十四预设开度小于第十五预设开度。
也就是说，当低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需X所在能需范围为第二能需范围X2，即X1＜X≤X2时，确定低温制冷风阀的开度K为第十五预设开度K15，其中，K14＜K15。
S43，如果低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第十六预设开度，其中，第十五预设开度小于第十六预设开度。
也就是说，当低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需X所在能需范围为最大能需范围Xmax，确定低温制冷风阀的开度K为第十六预设开度K16，其中，K15＜K16。
进一步地，如图9所示，根据本发明的一个实施例，控制方法还包括：
S50，如果低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第十七预设开度。
也就是说，当低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需X所在能需范围为最小能需范围Xmin，确定低温制冷风阀的开度K为第十七预设开度K17。
S51，如果低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第十八预设开度，其中，第十七预设开度小于第十八预设开度。
也就是说，当低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需X所在能需范围为第一能需范围X1，即Xmin＜X≤X1时，确定低温制冷风阀的开度K为第十八预设开度K18，其中，K17＜K18。
S52，如果低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第十九预设开度，其中，第十九预设开度小于第十八预设开度。
也就是说，当低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需X所在能需范围为第二能需范围X2，即X1＜X≤X2时，确定低温制冷风阀的开度K为第十九预设开度K19，其中，K18＜K19。
S53，如果低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第二十预设开度，其中，第十九预设开度小于第二十预设开度。
也就是说，当低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需X所在能需范围为最大能需范围Xmax，确定低温制冷风阀的开度K为第二十预设开度K20，其中，K19＜K20。
进一步地，如图10所示，根据本发明的一个实施例，控制方法包括：
S60，如果低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第二十一预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需X所在能需范围为最小能需范围Xmin，确定低温制冷风阀的开度K为第二十一预设开度K21。
S61，如果低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第二十二预设开度，其中，第二十一预设开度小于第二十二预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需X所在能需范围为第一能需范围X1，即Xmin＜X≤X1时，确定低温制冷风阀的开度K为第二十二预设开度K22，其中，K21＜K22。
S62，如果低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第二十三预设开度，其中，第二十一预设开度小于第二十三预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需X所在能需范围为第二能需范围X2，即X1＜X≤X2时，确定低温制冷风阀的开度K为第二十三预设开度K23，其中，K22＜K23。
S63，如果低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第二十四预设开度，其中，第二十三预设开度小于第二十四预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需X所在能需范围为最大能需范围Xmax，确定低温制冷风阀的开度K为第二十四预设开度K24，其中，K23＜K24。
进一步地，如图11所示，根据本发明的一个实施例，控制方法还包括：
S70，如果低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第二十五预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需X所在能需范围为最小能需范围Xmin，确定低温制冷风阀的开度K为第二十五预设开度K25。
S71，如果低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第二十六预设开度，其中，第二十五预设开度小于第二十六预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需X所在能需范围为第一能需范围X1，即Xmin＜X≤X1时，确定低温制冷风阀的开度K为第二十六预设开度K26，其中，K25＜K26。
S72，如果低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第二十七预设开度， 其中，第二十六预设开度小于第二十七预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需X所在能需范围为第二能需范围X2，即X1＜X≤X2时，确定低温制冷风阀的开度K为第二十七预设开度K27，其中，K26＜K27。
S73，如果低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第二十八预设开度，第二十七预设开度小于第二十八预设开度。
也就是说，当低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需X所在能需范围为最大能需范围Xmax，确定低温制冷风阀的开度K为第二十八预设开度K28，其中，K27＜K28。
进一步地，如图12所示，根据本发明的一个实施例，控制方法还包括：
S80，如果低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第二十九预设开度。
也就是说，当低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需X所在能需范围为最小能需范围Xmin，确定低温制冷风阀的开度K为第二十九预设开度K29。
S81，如果低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第三十预设开度，其中，第二十九预设开度小于第三十开度。
也就是说，当低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需X所在能需范围为第一能需范围X1，即Xmin＜X≤X1时，确定低温制冷风阀的开度K为第三十预设开度K30，其中，K29＜K30。
S82，如果低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第三十一预设开度，其中，第三十预设开度小于第三十一预设开度。
也就是说，当低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需X所在能需范围为第二能需范围X2，即X1＜X≤X2时，确定低温制冷风阀的开度K为第三十一预设开度K31，其中，K30＜K31。
S83，如果低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第三十二预设开度，其中，第三十一预设开度小于第三十二预设开度。
也就是说，当低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需X所在能需范围为最大能需范围Xmax，确定低温制冷风阀的开度K为第三十二预设开度K32， 其中，K31＜K32。
举例而言，假设系统实际压力Ps小于或等于最大预设压力值Pmax，且大于第二预设压力值P2，环境温度Ts小于或等于最大预设温度值Tmax，并大于第二预设温度值T2，且系统能需X所在能需范围为第二能需范围X2，则制冷系统先根据系统实际压力Ps确定低温制冷风阀的开度范围为第一预设范围，进而根据环境温度Ts进一步确定低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，并根据系统能需X确定低温制冷风阀的开度K为第七预设开度K7。
可以理解的是，在本发明的一些实施例中，也可根据环境温度Ts或系统能需X确定低温制冷风阀的开度范围，并根据系统压力Ps或系统能需X进一步确定低温制冷风阀的开度范围，进而，根据系统压力Ps或环境温度Ts确定低温制冷风阀的开度K。
综上，根据本发明实施例提出的低温制冷风阀的控制方法，获取系统实际压力、环境温度和系统能需，并根据系统实际压力、环境温度和系统能需确定低温制冷风阀的开度。由此，根据系统高压，环境温度以及系统能需对低温制冷风阀进行耦合控制，能够细化低温制冷风阀的开度范围，并确定低温制冷风阀的开度，有利于多联机在超低温环境下的制冷运行，同时，增加低温制冷运行的可靠性，并拓展制冷运行范围。
图13为根据本发明实施例的低温制冷风阀的控制装置的方框示意图。
如图13所示，低温制冷风阀的控制装置100包括：获取模块1和确定模块2。
其中，获取模块1用于获取系统实际压力、环境温度和系统能需；确定模块2用于根据系统实际压力、环境温度和系统能需确定低温制冷风阀的开度。
由此，根据系统高压，环境温度以及系统能需对低温制冷风阀进行耦合控制，细化低温制冷风阀的开度范围，并确定低温制冷风阀的开度，有利于多联机在超低温环境下的制冷运行，同时，增加低温制冷运行的可靠性，并拓展制冷运行范围。
进一步地，根据本发明的一个实施例，系统实际压力可为压缩机排气压力或冷凝器冷凝压力。
进一步地，根据本发明的一个实施例，确定模块2还用于：如果系统实际压力大于最大预设压力值，则确定低温制冷风阀的开度为全开；如果系统实际压力小于或等于最大预设压力值，且大于第二预设压力值，则确定低温制冷风阀的开度范围为第一预设范围；如果系统实际压力小于或等于第二预设压力值，且大于第三预设压力值，则确定低温制冷风阀的开度范围为第二预设范围，其中，第二预设范围小于第一预设范围；如果系统实际压力小于最小预设压力值，则确定低温制冷风阀的开度为全闭。
进一步地，根据本发明的一个实施例，确定模块2还用于：如果低温制冷风阀的开度范围为第一预设范围，且环境温度大于最大预设温度值，则进一步确定低温制冷风阀的开 度范围为第一预设范围的最大值；如果低温制冷风阀的开度范围为第一预设范围，且环境温度小于或等于最大预设温度值，并大于第二预设温度值，则进一步确定低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比；如果低温制冷风阀的开度范围为第一预设范围，且环境温度小于或等于第二预设温度值，并大于第三预设温度值，则进一步确定低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，其中，第一预设百分比小于第二预设百分比；如果低温制冷风阀的开度范围为第一预设范围，且环境温度小于最低预设温度值，则进一步确定低温制冷风阀的开度范围为第一预设范围的最小值。
进一步地，根据本发明的一个实施例，确定模块2还用于：如果低温制冷风阀的开度范围为第二预设范围，且环境温度大于最大预设温度值，则进一步确定低温制冷风阀的开度范围为第二预设范围的最大值；如果低温制冷风阀的开度范围为第二预设范围，且环境温度小于或等于最大预设温度值，并大于第二预设温度值，则进一步确定低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比；如果低温制冷风阀的开度范围为第二预设范围，且环境温度小于或等于第二预设温度值，并大于第三预设温度值，则进一步确定低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，其中，第一预设百分比小于第二预设百分比；如果低温制冷风阀的开度范围为第二预设范围，且环境温度小于最小预设温度值，则进一步确定低温制冷风阀的开度范围为第二预设范围的最小值。
进一步地，根据本发明的一个实施例，确定模块2还用于：如果低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第一预设开度；如果低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第二预设开度，其中，第一预设开度小于第二预设开度；如果低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第三预设开度，其中，第二预设开度小于第三预设开度，第一能需范围小于第二能需范围；如果低温制冷风阀的开度范围为第一预设范围的最大值，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第四预设开度，其中，第三预设开度小于第四预设开度。
进一步地，根据本发明的一个实施例，确定模块2还用于：如果低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第五预设开度；如果低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第六预设开度，其中，第五预设开度小于第六预设开度；如果低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，且系统能需所在能需范围 为第二能需范围，则确定低温制冷风阀的开度为第七预设开度，其中，第六预设开度小于第七预设开度；如果低温制冷风阀的开度范围为相对于第一预设范围降低第一预设百分比，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第八预设开度，其中，第七预设开度小于第八预设开度。
进一步地，根据本发明的一个实施例，确定模块2还用于：如果低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第九预设开度；如果低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第十预设开度，其中，第九预设开度小于第十预设开度；如果低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第十一预设开度，其中，第十预设开度小于第十一预设开度；如果低温制冷风阀的开度范围为相对于第一预设范围降低第二预设百分比，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第十二预设开度，第十一预设开度小于第十二预设开度。
进一步地，根据本发明的一个实施例，确定模块2还用于：如果低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第十三预设开度；如果低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第十四预设开度，其中，第十三预设开度小于第十四开度；如果低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第十五预设开度，其中，第十四预设开度小于第十五预设开度；如果低温制冷风阀的开度范围为第一预设范围的最小值，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第十六预设开度，其中，第十五预设开度小于第十六预设开度。
进一步地，根据本发明的一个实施例，确定模块2还用于：如果低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第十七预设开度；如果低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第十八预设开度，其中，第十七预设开度小于第十八预设开度；如果低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第十九预设开度，其中，第十九预设开度小于第十八预设开度；如果低温制冷风阀的开度范围为第二预设范围的最大值，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第二十预设开度，其中，第十九预设开度小于第二十预设开度。
进一步地，根据本发明的一个实施例，确定模块2还用于：如果低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第二十一预设开度；如果低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第二十二预设开度，其中，第二十一预设开度小于第二十二预设开度；如果低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第二十三预设开度，其中，第二十一预设开度小于第二十三预设开度；如果低温制冷风阀的开度范围为相对于第二预设范围降低第一预设百分比，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第二十四预设开度，其中，第二十三预设开度小于第二十四预设开度。
进一步地，根据本发明的一个实施例，确定模块2还用于：如果低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第二十五预设开度；如果低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第二十六预设开度，其中，第二十五预设开度小于第二十六预设开度；如果低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第二十七预设开度，其中，第二十六预设开度小于第二十七预设开度；如果低温制冷风阀的开度范围为相对于第二预设范围降低第二预设百分比，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第二十八预设开度，第二十七预设开度小于第二十八预设开度。
进一步地，根据本发明的一个实施例，确定模块2还用于：如果低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需所在能需范围为最小能需范围，则确定低温制冷风阀的开度为第二十九预设开度；如果低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需所在能需范围为第一能需范围，则确定低温制冷风阀的开度为第三十预设开度，其中，第二十九预设开度小于第三十开度；如果低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需所在能需范围为第二能需范围，则确定低温制冷风阀的开度为第三十一预设开度，其中，第三十预设开度小于第三十一预设开度；如果低温制冷风阀的开度范围为第二预设范围的最小值，且系统能需所在能需范围为最大能需范围，则确定低温制冷风阀的开度为第三十二预设开度，其中，第三十一预设开度小于第三十二预设开度。
本发明实施例提出的低温制冷风阀的控制装置与前述低温制冷风阀的控制方法一一对应，在此不再赘述。
综上，根据本发明实施例提出的低温制冷风阀的控制装置，通过获取模块获取系统实际压力、环境温度和系统能需，并通过确定模块根据所述系统实际压力、所述环境温度和所述系统能需确定低温制冷风阀的开度，能够根据系统高压，环境温度以及系统能需对低温制冷风阀进行耦合控制，细化低温制冷风阀的开度范围，并确定低温制冷风阀的开度，有利于多联机在超低温环境下的制冷运行，同时，增加低温制冷运行的可靠性，并拓展制冷运行范围。
需要说明的是，在流程图中表示或在此以其他方式描述的逻辑和/或步骤，例如，可以被认为是用于实现逻辑功能的可执行指令的定序列表，可以具体实现在任何计算机可读介质中，以供指令执行系统、装置或设备(如基于计算机的系统、包括处理器的系统或其他可以从指令执行系统、装置或设备取指令并执行指令的系统)使用，或结合这些指令执行系统、装置或设备而使用。就本说明书而言，"计算机可读介质"可以是任何可以包含、存储、通信、传播或传输程序以供指令执行系统、装置或设备或结合这些指令执行系统、装置或设备而使用的装置。计算机可读介质的更具体的示例(非穷尽性列表)包括以下：具有一个或多个布线的电连接部(电子装置)，便携式计算机盘盒(磁装置)，随机存取存储器(RAM)，只读存储器(ROM)，可擦除可编辑只读存储器(EPROM或闪速存储器)，光纤装置，以及便携式光盘只读存储器(CDROM)。另外，计算机可读介质甚至可以是可在其上打印所述程序的纸或其他合适的介质，因为可以例如通过对纸或其他介质进行光学扫描，接着进行编辑、解译或必要时以其他合适方式进行处理来以电子方式获得所述程序，然后将其存储在计算机存储器中。
应当理解，本发明的各部分可以用硬件、软件、固件或它们的组合来实现。在上述实施方式中，多个步骤或方法可以用存储在存储器中且由合适的指令执行系统执行的软件或固件来实现。例如，如果用硬件来实现，和在另一实施方式中一样，可用本领域公知的下列技术中的任一项或他们的组合来实现：具有用于对数据信号实现逻辑功能的逻辑门电路的离散逻辑电路，具有合适的组合逻辑门电路的专用集成电路，可编程门阵列(PGA)，现场可编程门阵列(FPGA)等。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明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示例。而且，描述的具体特征、结构、材料或者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。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、 “外”、“顺时针”、“逆时针”、“轴向”、“径向”、“周向”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发明和简化描述，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发明的限制。
此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。在本发明的描述中，“多个”的含义是至少两个，例如两个，三个等，除非另有明确具体的限定。
在本发明中，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”、“固定”等术语应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。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发明中的具体含义。
在本发明中，除非另有明确的规定和限定，第一特征在第二特征“上”或“下”可以是第一和第二特征直接接触，或第一和第二特征通过中间媒介间接接触。而且，第一特征在第二特征“之上”、“上方”和“上面”可是第一特征在第二特征正上方或斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”可以是第一特征在第二特征正下方或斜下方，或仅仅表示第一特征水平高度小于第二特征。
在本说明书的描述中，参考术语“一个实施例”、“一些实施例”、“示例”、“具体示例”、或“一些示例”等的描述意指结合该实施例或示例描述的具体特征、结构、材料或者特点包含于本发明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必须针对的是相同的实施例或示例。而且，描述的具体特征、结构、材料或者特点可以在任一个或多个实施例或示例中以合适的方式结合。此外，在不相互矛盾的情况下，本领域的技术人员可以将本说明书中描述的不同实施例或示例以及不同实施例或示例的特征进行结合和组合。
尽管上面已经示出和描述了本发明的实施例，可以理解的是，上述实施例是示例性的，不能理解为对本发明的限制，本领域的普通技术人员在本发明的范围内可以对上述实施例进行变化、修改、替换和变型。

Claims (26)

  1. 一种低温制冷风阀的控制方法，其特征在于，包括：
    获取系统实际压力、环境温度和系统能需；
    根据所述系统实际压力、所述环境温度和所述系统能需确定低温制冷风阀的开度。
  2. 如权利要求1所述的控制方法，其特征在于，所述系统实际压力为压缩机排气压力或冷凝器冷凝压力。
  3. 如权利要求1所述的控制方法，其特征在于，所述根据所述系统实际压力、所述环境温度和所述系统能需，确定低温制冷风阀的开度具体包括：
    如果所述系统实际压力大于最大预设压力值，则确定所述低温制冷风阀的开度为全开；
    如果所述系统实际压力小于或等于所述最大预设压力值，且大于第二预设压力值，则确定所述低温制冷风阀的开度范围为第一预设范围；
    如果所述系统实际压力小于或等于所述第二预设压力值，且大于第三预设压力值，则确定所述低温制冷风阀的开度范围为第二预设范围，其中，所述第二预设范围小于所述第一预设范围；
    如果所述系统实际压力小于最小预设压力值，则确定所述低温制冷风阀的开度为全闭。
  4. 如权利要求3所述的控制方法，其特征在于，还包括：
    如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度大于最大预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第一预设范围的最大值；
    如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于或等于所述最大预设温度值，并大于第二预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比；
    如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于或等于所述第二预设温度值，并大于第三预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，其中，所述第一预设百分比小于所述第二预设百分比；
    如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于最低预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第一预设范围的最小值。
  5. 如权利要求3所述的控制方法，其特征在于，其中，
    如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度大于最大预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第二预设范围的最大值；
    如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于或等于所述最大预设温度值，并大于第二预设温度值，则进一步确定所述低温制冷风阀的开度范 围为相对于所述第二预设范围降低第一预设百分比；
    如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于或等于所述第二预设温度值，并大于第三预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，其中，所述第一预设百分比小于所述第二预设百分比；
    如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于最小预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第二预设范围的最小值。
  6. 如权利要求4所述的控制方法，其特征在于，其中，
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为最小能需范围，则确定所述低温制冷风阀的开度为第一预设开度；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为第一能需范围，则确定所述低温制冷风阀的开度为第二预设开度，其中，所述第一预设开度小于所述第二预设开度；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为第二能需范围，则确定所述低温制冷风阀的开度为第三预设开度，其中，所述第二预设开度小于所述第三预设开度，所述第一能需范围小于所述第二能需范围；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为最大能需范围，则确定所述低温制冷风阀的开度为第四预设开度，其中，所述第三预设开度小于所述第四预设开度。
  7. 如权利要求4所述的控制方法，其特征在于，其中，
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第五预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第六预设开度，其中，所述第五预设开度小于第六预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第七预设开度，其中，所述第六预设开度小于所述第七预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第八预设开度，其中，所述第七预设开度小于所述第八预设开度。
  8. 如权利要求4所述的控制方法，其特征在于，其中，
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第九预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第十预设开度，其中，所述第九预设开度小于所述第十预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第十一预设开度，其中，所述第十预设开度小于所述第十一预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第十二预设开度，所述第十一预设开度小于所述第十二预设开度。
  9. 如权利要求4所述的控制方法，其特征在于，其中，
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第十三预设开度；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第十四预设开度，其中，所述第十三预设开度小于所述第十四开度；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第十五预设开度，其中，所述第十四预设开度小于第十五预设开度；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第十六预设开度，其中，所述第十五预设开度小于第十六预设开度。
  10. 如权利要求5所述的控制方法，其特征在于，其中，
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为最小能需范围，则确定所述低温制冷风阀的开度为第十七预设开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为第一能需范围，则确定所述低温制冷风阀的开度为第十八预设开度，其中，所述第十七预设开度小于所述第十八预设开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所 在能需范围为第二能需范围，则确定所述低温制冷风阀的开度为第十九预设开度，其中，所述第十九预设开度小于所述第十八预设开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为最大能需范围，则确定所述低温制冷风阀的开度为第二十预设开度，其中，所述第十九预设开度小于所述第二十预设开度。
  11. 如权利要求5所述的控制方法，其特征在于，其中，
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十一预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第二十二预设开度，其中，所述第二十一预设开度小于第二十二预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第二十三预设开度，其中，所述第二十一预设开度小于所述第二十三预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第二十四预设开度，其中，所述第二十三预设开度小于所述第二十四预设开度。
  12. 如权利要求5所述的控制方法，其特征在于，其中，
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十五预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第二十六预设开度，其中，所述第二十五预设开度小于所述第二十六预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第二十七预设开度，其中，所述第二十六预设开度小于所述第二十七预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第二十八预设开度，所述第二十七预设开度小于所述第二十八预设开度。
  13. 如权利要求5所述的控制方法，其特征在于，其中，
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十九预设开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第三十预设开度，其中，所述第二十九预设开度小于所述第三十开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第三十一预设开度，其中，所述第三十预设开度小于第三十一预设开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第三十二预设开度，其中，所述第三十一预设开度小于第三十二预设开度。
  14. 一种低温制冷风阀的控制装置，其特征在于，包括：
    获取模块，用于获取系统实际压力、环境温度和系统能需；
    确定模块，用于根据所述系统实际压力、所述环境温度和所述系统能需确定低温制冷风阀的开度。
  15. 如权利要求14所述的控制装置，其特征在于，所述系统实际压力为压缩机排气压力或冷凝器冷凝压力。
  16. 如权利要求14所述的控制装置，其特征在于，所述确定模块还用于：
    如果所述系统实际压力大于最大预设压力值，则确定所述低温制冷风阀的开度为全开；
    如果所述系统实际压力小于或等于所述最大预设压力值，且大于第二预设压力值，则确定所述低温制冷风阀的开度范围为第一预设范围；
    如果所述系统实际压力小于或等于所述第二预设压力值，且大于第三预设压力值，则确定所述低温制冷风阀的开度范围为第二预设范围，其中，所述第二预设范围小于所述第一预设范围；
    如果所述系统实际压力小于最小预设压力值，则确定所述低温制冷风阀的开度为全闭。
  17. 如权利要求16所述的控制装置，其特征在于，所述确定模块还用于：
    如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度大于最大预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第一预设范围的最大值；
    如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于或等于所述最大预设温度值，并大于第二预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比；
    如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于或等于 所述第二预设温度值，并大于第三预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，其中，所述第一预设百分比小于所述第二预设百分比；
    如果所述低温制冷风阀的开度范围为所述第一预设范围，且所述环境温度小于最低预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第一预设范围的最小值。
  18. 如权利要求16所述的控制装置，其特征在于，所述确定模块还用于：
    如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度大于最大预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第二预设范围的最大值；
    如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于或等于所述最大预设温度值，并大于第二预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比；
    如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于或等于所述第二预设温度值，并大于第三预设温度值，则进一步确定所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，其中，所述第一预设百分比小于所述第二预设百分比；
    如果所述低温制冷风阀的开度范围为所述第二预设范围，且所述环境温度小于最小预设温度值，则进一步确定所述低温制冷风阀的开度范围为所述第二预设范围的最小值。
  19. 如权利要求17所述的控制装置，其特征在于，所述确定模块还用于：
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为最小能需范围，则确定所述低温制冷风阀的开度为第一预设开度；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为第一能需范围，则确定所述低温制冷风阀的开度为第二预设开度，其中，所述第一预设开度小于所述第二预设开度；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为第二能需范围，则确定所述低温制冷风阀的开度为第三预设开度，其中，所述第二预设开度小于所述第三预设开度，所述第一能需范围小于所述第二能需范围；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最大值，且所述系统能需所在能需范围为最大能需范围，则确定所述低温制冷风阀的开度为第四预设开度，其中，所述第三预设开度小于所述第四预设开度。
  20. 如权利要求17所述的控制装置，其特征在于，所述确定模块还用于：
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第 五预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第六预设开度，其中，所述第五预设开度小于第六预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第七预设开度，其中，所述第六预设开度小于所述第七预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第八预设开度，其中，所述第七预设开度小于所述第八预设开度。
  21. 如权利要求17所述的控制装置，其特征在于，所述确定模块还用于：
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第九预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第十预设开度，其中，所述第九预设开度小于所述第十预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第十一预设开度，其中，所述第十预设开度小于所述第十一预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第一预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第十二预设开度，所述第十一预设开度小于所述第十二预设开度。
  22. 如权利要求17所述的控制装置，其特征在于，所述确定模块还用于：
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第十三预设开度；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第十四预设开度，其中，所述第十三预设开度小于所述第十四开度；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第十五预设开度，其中，所述第十四预设开度小于第十五预设开度；
    如果所述低温制冷风阀的开度范围为所述第一预设范围的最小值，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第十六预设开度，其中，所述第十五预设开度小于第十六预设开度。
  23. 如权利要求18所述的控制装置，其特征在于，所述确定模块还用于：
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为最小能需范围，则确定所述低温制冷风阀的开度为第十七预设开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为第一能需范围，则确定所述低温制冷风阀的开度为第十八预设开度，其中，所述第十七预设开度小于所述第十八预设开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为第二能需范围，则确定所述低温制冷风阀的开度为第十九预设开度，其中，所述第十九预设开度小于所述第十八预设开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最大值，且所述系统能需所在能需范围为最大能需范围，则确定所述低温制冷风阀的开度为第二十预设开度，其中，所述第十九预设开度小于所述第二十预设开度。
  24. 如权利要求18所述的控制装置，其特征在于，所述确定模块还用于：
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十一预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第二十二预设开度，其中，所述第二十一预设开度小于第二十二预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第二十三预设开度，其中，所述第二十一预设开度小于所述第二十三预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第一预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第二十四预设开度，其中，所述第二十三预设开度小于所述第二十四预设开度。
  25. 如权利要求18所述的控制装置，其特征在于，所述确定模块还用于：
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十五预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第二十六预设开度，其中，所述第二十五预设开度小于所述第二十六预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第二十七预设开度，其中，所述第二十六预设开度小于所述第二十七预设开度；
    如果所述低温制冷风阀的开度范围为相对于所述第二预设范围降低第二预设百分比，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第二十八预设开度，所述第二十七预设开度小于所述第二十八预设开度。
  26. 如权利要求18所述的控制装置，其特征在于，所述确定模块还用于：
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述最小能需范围，则确定所述低温制冷风阀的开度为第二十九预设开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述第一能需范围，则确定所述低温制冷风阀的开度为第三十预设开度，其中，所述第二十九预设开度小于所述第三十开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述第二能需范围，则确定所述低温制冷风阀的开度为第三十一预设开度，其中，所述第三十预设开度小于第三十一预设开度；
    如果所述低温制冷风阀的开度范围为所述第二预设范围的最小值，且所述系统能需所在能需范围为所述最大能需范围，则确定所述低温制冷风阀的开度为第三十二预设开度，其中，所述第三十一预设开度小于第三十二预设开度。
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12038192B2 (en) 2018-12-29 2024-07-16 Hefei Midea Heating & Ventilating Equipment Co., Ltd. Control methods and devices for a low-temperature cooling air valve

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109708273B (zh) * 2018-12-29 2021-10-08 广东美的暖通设备有限公司 低温制冷风阀的控制方法及其装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003536041A (ja) * 2000-06-07 2003-12-02 サムスン エレクトロニクス カンパニー リミテッド 空気調和機の制御システム及びその制御方法
CN101915450A (zh) * 2010-08-16 2010-12-15 清华大学 一种多联机室内机风侧旁通容量控制方法及其装置
CN104633815A (zh) * 2015-02-02 2015-05-20 北京雅驿欣科技有限公司 机房用空调系统及其控制方法
CN105352109A (zh) * 2015-09-29 2016-02-24 西安建筑科技大学 基于气候补偿的变风量空调末端温度控制系统及方法
CN106052020A (zh) * 2016-05-30 2016-10-26 华为技术有限公司 一种空调系统的压缩机控制方法，装置及空调系统
CN107152822A (zh) * 2017-06-23 2017-09-12 广东美的暖通设备有限公司 室外机的控制方法、空调器、及存储介质
CN109708274A (zh) * 2018-12-29 2019-05-03 广东美的暖通设备有限公司 低温制冷风阀的控制方法及装置

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4975024A (en) * 1989-05-15 1990-12-04 Elliott Turbomachinery Co., Inc. Compressor control system to improve turndown and reduce incidents of surging
CN100480601C (zh) * 2006-05-22 2009-04-22 袁君 智能变频蒸发式冷凝器
CN203240832U (zh) * 2013-03-18 2013-10-16 浙江盾安机电科技有限公司 一种风冷冷凝制冷机组
JP2014190554A (ja) * 2013-03-26 2014-10-06 Fujitsu General Ltd 空気調和機
CN203615637U (zh) * 2013-12-06 2014-05-28 南京恒标斯瑞冷冻机械制造有限公司 全天候风冷冷水机组
US10571175B2 (en) * 2014-01-22 2020-02-25 Desert Aire Corp. Heat pump temperature control
EP3191772B1 (en) * 2014-04-09 2025-05-28 Maurizio Tropea Apparatus for air-conditioning of environments in the marine field
JP6548890B2 (ja) * 2014-10-31 2019-07-24 三菱重工サーマルシステムズ株式会社 冷凍サイクルの制御装置、冷凍サイクル、及び冷凍サイクルの制御方法
CN205783936U (zh) * 2015-12-31 2016-12-07 广州番禺速能冷暖设备有限公司 一种超低环境温度风冷冷水机组
CN205403281U (zh) * 2016-03-10 2016-07-27 青岛大学 一种室外冷凝器冷却风量的控制装置
CN107328074B (zh) * 2016-04-29 2023-10-31 广东美的制冷设备有限公司 空调外壳、窗机空调及其制冷运行方法
CN107806675B (zh) * 2016-09-06 2023-08-25 深圳开山昊昱节能科技有限公司 一种四季型风冷式除湿系统及其控制方法
CN106524330A (zh) * 2016-12-06 2017-03-22 珠海格力电器股份有限公司 空调室外机、空调机组及其制冷控制方法和制热控制方法
US10598418B2 (en) * 2017-02-06 2020-03-24 Ut-Battelle, Llc Method and device for controlling heat pump
CN108131803A (zh) * 2017-12-18 2018-06-08 广东美的暖通设备有限公司 多联机空调的控制方法
CN108344086B (zh) * 2017-12-27 2023-08-25 南通航运职业技术学院 一种基于蒸发式冷凝器的制冷系统及其控制方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003536041A (ja) * 2000-06-07 2003-12-02 サムスン エレクトロニクス カンパニー リミテッド 空気調和機の制御システム及びその制御方法
CN101915450A (zh) * 2010-08-16 2010-12-15 清华大学 一种多联机室内机风侧旁通容量控制方法及其装置
CN104633815A (zh) * 2015-02-02 2015-05-20 北京雅驿欣科技有限公司 机房用空调系统及其控制方法
CN105352109A (zh) * 2015-09-29 2016-02-24 西安建筑科技大学 基于气候补偿的变风量空调末端温度控制系统及方法
CN106052020A (zh) * 2016-05-30 2016-10-26 华为技术有限公司 一种空调系统的压缩机控制方法，装置及空调系统
CN107152822A (zh) * 2017-06-23 2017-09-12 广东美的暖通设备有限公司 室外机的控制方法、空调器、及存储介质
CN109708274A (zh) * 2018-12-29 2019-05-03 广东美的暖通设备有限公司 低温制冷风阀的控制方法及装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US12038192B2 (en) 2018-12-29 2024-07-16 Hefei Midea Heating & Ventilating Equipment Co., Ltd. Control methods and devices for a low-temperature cooling air valve

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