WO2023071331A1 - 空气源热泵机组系统的控制方法和空气源热泵机组系统 - Google Patents

空气源热泵机组系统的控制方法和空气源热泵机组系统 Download PDF

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Publication number
WO2023071331A1
WO2023071331A1 PCT/CN2022/108251 CN2022108251W WO2023071331A1 WO 2023071331 A1 WO2023071331 A1 WO 2023071331A1 CN 2022108251 W CN2022108251 W CN 2022108251W WO 2023071331 A1 WO2023071331 A1 WO 2023071331A1
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WIPO (PCT)
Prior art keywords
heat pump
pump unit
air source
source heat
temperature
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Ceased
Application number
PCT/CN2022/108251
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English (en)
French (fr)
Inventor
李宏波
黎小梅
张锐
冯金玲
叶长鲙
杜振雷
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.)
Gree Electric Appliances Inc of Zhuhai
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Gree Electric Appliances Inc of Zhuhai
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Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to EP22885232.3A priority Critical patent/EP4425065B1/en
Publication of WO2023071331A1 publication Critical patent/WO2023071331A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • F24F11/46—Improving electric energy efficiency or saving
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F24D19/1012—Arrangement or mounting of control or safety devices for water heating systems for central heating by regulating the speed of a pump
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D3/00—Hot-water central heating systems
    • F24D3/18—Hot-water central heating systems using heat pumps
    • 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
    • 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
    • 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
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/156—Reducing the quantity of energy consumed; Increasing efficiency
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/10—Control of fluid heaters characterised by the purpose of the control
    • F24H15/174—Supplying heated water with desired temperature or desired range of temperature
    • F24H15/175—Supplying heated water with desired temperature or desired range of temperature where the difference between the measured temperature and a set temperature is kept under a predetermined value
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/212—Temperature of the water
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/20—Control of fluid heaters characterised by control inputs
    • F24H15/254—Room temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/335—Control of pumps, e.g. on-off control
    • F24H15/34—Control of the speed of pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/375—Control of heat pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H4/00—Fluid heaters characterised by the use of heat pumps
    • F24H4/02—Water heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D19/00—Details
    • F24D19/10—Arrangement or mounting of control or safety devices
    • F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
    • F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D2200/00—Heat sources or energy sources
    • F24D2200/12—Heat pump
    • 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 present application relates to the technical field of heat pump unit equipment, in particular to a control method of an air source heat pump unit system and the air source heat pump unit system.
  • the air source heat pump unit system in the related art has the problems of high energy consumption in operation and poor room comfort.
  • the present application proposes a control method of the air source heat pump unit system and the air source heat pump unit system, which solve the problems of high energy consumption and poor room comfort of the air source heat pump unit system.
  • the control method of the air source heat pump unit system of the present application includes:
  • the water supply temperature of the air source heat pump unit system is controlled by monitoring the actual demand changes at the end.
  • control method includes:
  • the current temperature deviation value of the room is higher than a set temperature deviation threshold, wherein the current temperature deviation value of the room is the difference between the current temperature of the room and the target temperature of the room;
  • the temperature difference between supply and return water is the difference between the set supply water temperature and the set return water temperature, and the set supply water temperature is greater than the set return water temperature.
  • the set water supply temperature When the current temperature deviation value of the room is higher than the set temperature deviation threshold, the set water supply temperature will continue to be lowered, and the set return water temperature will be lowered simultaneously, while ensuring that the temperature difference between the supply and return water remains unchanged.
  • the actual water supply temperature and return water temperature of the air source heat pump unit system are reduced, and the temperature difference between the supply and return water of the air source heat pump unit system is kept unchanged, thus reducing the
  • the operating energy consumption of the air source heat pump unit system improves the operating efficiency of the system, reduces the energy waste of the system, and ensures the stable operation of the system, thereby improving the comfort of the room and bringing a better experience to users.
  • the opening of the end valve is adjusted, the speed of the water pump is adjusted synchronously, and the circulating water volume of the system is reduced.
  • the circulating water volume of the system is reduced, which reduces the operating energy consumption of the air source heat pump unit system, thereby improving the operating efficiency of the system and reducing the energy waste of the system.
  • it ensures the stable operation of the system, thereby improving the comfort of the room and bringing a better experience to users.
  • control method also includes:
  • the unit When the current temperature deviation value of the room is higher than the set temperature deviation threshold, the unit is turned off, and the water pump operates at low frequency to maintain the system water circulation.
  • the energy consumption of the air source heat pump unit system is reduced, thereby improving the operating efficiency of the system, reducing the energy waste of the system, and ensuring the stable operation of the system at the same time. Improve the comfort of the room and bring a better experience to the user.
  • control method also includes:
  • control method also includes:
  • This application provides an air source heat pump unit system, which is used to adjust the temperature of a room, including:
  • a water supply pipeline one end of which is connected to the output end of the heat pump unit
  • the terminal heat exchanger the input end of the terminal heat exchanger communicates with the other end of the water supply pipeline;
  • the return water pipeline one end communicates with the input end of the heat pump unit, and the other end communicates with the output end of the terminal heat exchanger;
  • Water pump The water pump is arranged on the water supply pipeline or the water return pipeline,
  • a controller is used to cooperate with the water pump and the terminal valve to control the air source heat pump system by using any one of the control methods of the above air source heat pump system.
  • the present application also provides a computer device, including a memory and a processor, the memory stores a computer program, and the processor implements the steps of any one of the control methods for the air source heat pump unit system described above when executing the computer program.
  • the present application also provides a non-volatile computer-readable storage medium, on which a computer program is stored.
  • a computer program is stored on which a computer program is stored.
  • control method of the air source heat pump unit system and the air source heat pump unit system provided by the present application have at least the following beneficial effects:
  • the actual water supply temperature of the air source heat pump unit system is reduced by adjusting the operating status of the air source heat pump unit system. This reduces the operating energy consumption of the air source heat pump unit system, thereby improving the operating efficiency of the system, reducing the energy waste of the system, and ensuring the stable operation of the system, thereby improving the comfort of the room and bringing better benefits to users. sense of experience.
  • Fig. 1 has shown the method flowchart of the control method of embodiment 1 of the present application
  • Fig. 2 has shown the method flowchart of the control method of embodiment 2 of the present application
  • Fig. 3 has shown the method flowchart of the control method of embodiment 3 of the present application.
  • Fig. 4 has shown the method flowchart of the control method of embodiment 4 of the present application.
  • Fig. 5 shows the method flowchart of the control method of the fifth embodiment of the present application
  • Fig. 6 has shown the method flowchart of the control method of embodiment 6 of the present application.
  • Fig. 7 shows a schematic structural diagram of the air source heat pump unit system according to Embodiment 7 of the present application.
  • Heat pump unit 20. Water supply pipeline; 30. Terminal heat exchanger; 40. Return water pipeline; 50. Water pump; 60. Terminal valve.
  • the terminal in this application refers to the room heated by the air source heat pump unit system, and the actual demand change of the terminal in this application includes the change of the current temperature of the above-mentioned room.
  • This application provides a control method for an air source heat pump unit system, including:
  • the water supply temperature of the air source heat pump unit system is controlled by monitoring the actual demand changes at the end.
  • the actual water supply temperature of the air source heat pump unit system is reduced by adjusting the operating state of the air source heat pump unit system according to the monitored changes in the actual demand at the end. This reduces the operating energy consumption of the air source heat pump unit system, thereby improving the operating efficiency of the system, reducing the energy waste of the system, and ensuring the stable operation of the system, thereby improving the comfort of the room and bringing better benefits to users. sense of experience.
  • the present application provides a control method for an air source heat pump unit system.
  • the air source heat pump unit system is used to adjust the temperature of a room.
  • the control method for the air source heat pump unit system includes the following steps:
  • Step 1 Set the target temperature of the room as T, and set the temperature deviation threshold as ⁇ T1;
  • Step 2 Set the water supply temperature of the air source heat pump unit system to T1, and the return water temperature to T2 (step 2 and step 1 are combined in Figure 1, and there is no sequence relationship between the two);
  • Step 3 Determine whether the current temperature deviation value of the room in the air source heat pump unit system is higher than the set temperature deviation threshold ⁇ T1; where the current temperature deviation value of the room refers to the difference between the current temperature of the room and the target temperature of the room.
  • the temperature difference between supply and return water of the air source heat pump unit system ⁇ T is the difference between the set water supply temperature T1 and the set return water temperature T2, and the set water supply temperature T1 of the air source heat pump unit system is greater than the set return water temperature of the air source heat pump unit system temperature T2.
  • the actual water supply temperature of the air source heat pump unit system can be reduced, and the temperature difference between the supply and return water of the air source heat pump unit system can be kept constant, thus reducing the temperature of the air source heat pump unit system.
  • the energy consumption of the operation improves the operating efficiency of the system, reduces the energy waste of the system, and ensures the stable operation of the system, thereby improving the comfort of the room and bringing a better experience to the user.
  • control method also includes the following steps:
  • Step 4 Determine whether the current temperature deviation value of the room of the air source heat pump unit system is higher than the set temperature deviation threshold ⁇ T1 of the air source heat pump unit system.
  • the actual water supply temperature and return water temperature of the air source heat pump unit system can be reduced, and the temperature difference between the supply and return water of the air source heat pump unit system can be kept unchanged, thus reducing the air temperature.
  • the operating energy consumption of the source heat pump unit system improves the operating efficiency of the system, reduces the energy waste of the system, and ensures the stable operation of the system, thereby improving the comfort of the room and bringing a better experience to users.
  • control method further includes the following steps:
  • Step 5 When it is determined that the set water supply temperature T1 of the air source heat pump unit system is lower than the set lower limit temperature, determine whether the current temperature deviation value of the room of the air source heat pump unit system is higher than the set temperature deviation threshold ⁇ T1 of the air source heat pump unit system.
  • the opening of the end valve is adjusted, and the speed of the water pump is synchronously interlocked to reduce the circulating water volume of the system.
  • the circulating water volume of the system is reduced, which reduces the operating energy consumption of the air source heat pump unit system, thereby improving the operating efficiency of the system and reducing the energy waste of the system.
  • the synchronous interlocking adjustment of the water pump speed in this application means that the water pump speed can be adjusted together only when the opening of the end valve starts to be adjusted.
  • control method further includes the following steps:
  • Step 6 Determine whether the speed of the water pump in the air source heat pump unit system reaches the lower limit, and whether the current temperature deviation value of the room in the air source heat pump unit system is higher than the set temperature deviation threshold ⁇ T1 of the air source heat pump unit system.
  • the unit When the current temperature deviation value of the air source heat pump unit system room is higher than the set temperature deviation threshold ⁇ T1 of the air source heat pump unit system (if it is), the unit is turned off (turn off the heat pump unit), and the water pump operates at low frequency to maintain the system water circulation.
  • the operating energy consumption of the air source heat pump unit system is reduced, thereby improving the operating efficiency of the system, reducing the energy waste of the system, and ensuring the stable operation of the system, thereby improving It improves the comfort of the room and brings users a better experience.
  • Embodiment 4 is the same as other steps in Embodiment 3, and will not be repeated here.
  • control method further includes the following steps:
  • Step 7 Determine whether the temperature difference ⁇ T between the supply and return water of the air source heat pump unit system becomes smaller
  • control method further includes the following steps:
  • Step 8 Determine whether the current temperature deviation value of the air source heat pump unit system room is lower than the air source heat pump unit system set temperature deviation threshold ⁇ T1;
  • the present application also provides an air source heat pump unit system
  • the air source heat pump unit system is used to adjust the temperature of the room
  • the air source heat pump unit system adopts the above control method, which includes a heat pump unit 10, a water supply pipe Road 20, terminal heat exchanger 30, return water pipeline 40, water pump 50 and terminal valve 60.
  • a heat pump unit 10 a water supply pipe Road 20, terminal heat exchanger 30, return water pipeline 40, water pump 50 and terminal valve 60.
  • one end of the water supply pipeline 20 communicates with the output end of the heat pump unit 10 ;
  • the input end of the terminal heat exchanger 30 communicates with the other end of the water supply pipeline 20 .
  • One end of the return water pipeline 40 communicates with the input end of the heat pump unit 10 , and the other end communicates with the output end of the terminal heat exchanger 30 .
  • the water pump 50 is arranged on the return water pipeline 40
  • the terminal valve 60 is arranged on the water supply pipeline 20 .
  • the water pump 50 and the terminal valve 60 can adjust the circulating water volume of the air source heat pump unit system. By adjusting the water supply temperature, return water temperature and circulating water volume of the air source heat pump unit system, the operating efficiency of the air source heat pump unit system can be improved.
  • the heat pump unit 10 and the water pump 50 in this application all adopt frequency conversion control. Predict the load change of the room by monitoring the temperature change of the room, adjust the water supply temperature of the system and the operation status of the delivery pump in time, that is, adjust the water temperature of the system according to the load change, improve the operating efficiency of the system, reduce the energy waste of the system, and ensure the stable operation of the system. Thereby improving the comfort of the room.
  • the conventional frequency conversion system controls the unit by setting the water supply temperature. When the room temperature reaches the set value, the unit will start and stop multiple times.
  • this application controls the water supply temperature of the unit by monitoring the actual demand changes at the end, and solves the problems existing in the application of conventional frequency conversion systems by adjusting the water supply temperature of the unit. For example, when the room load decreases, the water supply temperature of the unit is reduced. , to reduce the multiple start and stop phenomena of the unit due to room load changes, so as to improve system stability and comprehensive energy efficiency of the system. At the same time, when the load continues to decrease, it can further reduce the circulating water volume of the system, reduce the energy consumption of the transmission and distribution pump, and reduce the energy consumption of the transmission and distribution system.
  • the present application provides an air source heat pump system, which includes: frequency conversion air source heat pump unit, frequency conversion delivery water pump, terminal heat exchanger 30, circulation pipeline (including return water pipeline 40 and water supply pipeline 20), temperature sensor, electric Regulating valve (end valve 60), etc.
  • the frequency conversion air source heat pump unit absorbs the heat in the air, is driven by the unit to increase the heat, and provides hot water at a suitable temperature to the terminal heat exchanger 30 for room heating.
  • Unit capacity adjustment process set the heating temperature of the room (adjust the temperature of the room) to an appropriate target temperature value T.
  • the water supply temperature of the frequency conversion air source heat pump unit is set as T1
  • the return water temperature becomes T2 after the heat exchange in the room
  • the temperature difference between the supply and return water of the frequency conversion air source heat pump unit is ⁇ T(T1-T2). Circulation of water in the pipe network. Since the indoor heat load is related to many factors such as the outdoor environment, the habits of people using air conditioners, and changes in fresh air volume, when the outdoor environment temperature changes, the room heat load will also change accordingly.
  • the temperature of the return water in the pipe network rises. t1, at this time, by adjusting the operating state of the unit, reduce the actual water supply temperature of the unit, and keep the temperature difference ⁇ T between the supply and return water of the unit unchanged, so as to reduce the operating energy consumption of the unit. If the room temperature is still higher than the set temperature deviation threshold ⁇ T1 at this time, the water supply temperature of the unit can still be reduced. At this time, the adjustment method of the unit is to control the compressor speed by frequency conversion, and keep the temperature difference between supply and return water ⁇ T unchanged, so that The return water temperature of the unit decreases synchronously.
  • the frequency conversion air source heat pump is turned off at this time
  • the unit heats up, while the variable frequency delivery water pump continues to operate at the lowest allowable frequency to maintain the system water circulation.
  • the temperature difference ⁇ T of the system supply and return water is monitored to gradually decrease, and it is maintained for a certain time t4, and the frequency conversion delivery pump is turned off.
  • this control method can first reduce the temperature of hot water supply, improve the efficiency of the frequency conversion air source heat pump unit, reduce its frequent start and stop, reduce its use failure, protect the service life of the compressor, and at the same time reduce the risk of room temperature fluctuations. frequency, maintain the comfort of the end room, and reduce the waste of room heat. At the same time, the flow rate of the system is adjusted by the frequency conversion pump, which can reduce the energy consumption of the pump and improve the overall operating efficiency of the system.
  • the present application also provides a computer device, including a memory and a processor, where a computer program is stored in the memory, and when the processor executes the computer program, it executes the steps of the above-mentioned control method of the air source heat pump unit system.
  • a non-volatile computer-readable storage medium on which a computer program is stored, and the computer program is executed by a processor to execute the steps of the above-mentioned control method of the air source heat pump unit system.
  • Non-volatile memory may include read-only memory (Read-Only Memory, ROM), magnetic tape, floppy disk, flash memory or optical memory, etc.
  • Volatile memory can include random access memory (Random Access Memory, RAM) or external cache memory.
  • RAM Random Access Memory
  • SRAM Static Random Access Memory
  • DRAM Dynamic Random Access Memory

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Signal Processing (AREA)
  • Fuzzy Systems (AREA)
  • Mathematical Physics (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

一种空气源热泵机组系统的控制方法和空气源热泵机组系统，所述空气源热泵机组系统的控制方法通过监测到末端实际需求变化来控制所述空气源热泵机组系统的供水温度，从而降低了空气源热泵机组系统的运行能耗。

Description

空气源热泵机组系统的控制方法和空气源热泵机组系统
相关申请的交叉引用
本申请要求于2021年10月29日提交中国专利局，申请号为202111276386.5，申请名称为“空气源热泵机组系统的控制方法和空气源热泵机组系统”的中国专利申请的优先权,在此将其全文引入作为参考。
技术领域
本申请涉及热泵机组设备技术领域，特别地涉及一种空气源热泵机组系统的控制方法和空气源热泵机组系统。
背景技术
目前，建筑各项能耗分布中，供热能耗所占比例较大，这其中涉及到资源合理利用问题。要减少环境的污染，必须增加可再生能源的利用率，如空气能等。利用空气能实现加热和冷却的目的对室内环境进行改善，是一种清洁的能源利用形式。空气源热泵机组系统应用领域广泛。但实际工程项目中，机组选型一般是按照设计工况最大热负荷进行选型，此时机组能效较低。当室外温度工况变好，房间负荷降低，将会导致空气源热泵系统机组存在频繁结霜、误除霜、运行不稳定等现象，容易引起系统水温波动，导致系统运行能耗高，且房间舒适性差。
也就是说，相关技术中的空气源热泵机组系统存在运行能耗高，且房间舒适性差的问题。
发明内容
针对上述现有技术中的问题，本申请提出了一种空气源热泵机组系统的控制方法和空气源热泵机组系统，解决了空气源热泵机组系统运行能耗高，且房间舒适性差的问题。
本申请的空气源热泵机组系统的控制方法，包括：
通过监测到末端实际需求变化来控制空气源热泵机组系统的供水温度。
在一个实施例中，控制方法包括：
设定房间的目标温度，设定温度偏差阈值；
设定所述空气源热泵机组系统的供水温度和回水温度；
判断所述房间的当前温度偏差值是否高于设定温度偏差阈值，其中，所述房间的所述当前温度偏差值为所述房间的当前温度与所述房间的所述目标温度的差值；
当所述房间的所述当前温度偏差值高于所述设定温度偏差阈值时，则降低所述设定供水温度，同时确保供回水温差不变；
其中，所述供回水温差为所述设定供水温度与所述设定回水温度的之差，所述设定供水温度大于所述设定回水温度。
在一个实施方式中，还包括：
判断房间的当前温度偏差值是否高于设定温度偏差阈值；
当房间的当前温度偏差值高于设定温度偏差阈值时，则继续降低设定供水温度，同步降低设定回水温度，同时确保供回水温差不变。通过本实施方式，通过调节空气源热泵机组系统的运行状态，以降低空气源热泵机组系统实际的供水温度和回水温度，并保持空气源热泵机组系统的供回水温差不变，这样降低了空气源热泵机组系统的运行能耗，从而提高了系统的运行效率，降低了系统的能源浪费，同时保证系统稳定地运行，进而提高了房间的舒适性，为用户带来较好的体验感。
在一个实施方式中，当房间的当前温度偏差值不高于设定温度偏差阈值时，则返回至降低设定供水温度，同时确保供回水温差不变的步骤。
在一个实施方式中，还包括：
判定设定供水温度低于设定下限温度时，判定房间的当前温度偏差值是否高于设定温度偏差阈值；
当房间的当前温度偏差值高于设定温度偏差阈值时，则调节末端阀门开度，同步调节水泵转速，降低系统循环水量。通过本实施方式，通过调节空气源热泵机组系统的运行状态，以降低系统循环水量，这样降低了空气源热泵机组系统的运行能耗，从而提高了系统的运行效率，降低了系统的能源浪费，同时保证系统稳定地运行，进而提高了房间的舒适性，为用户带来较好的体验感。
在一个实施方式中，控制方法还包括：
判定水泵转速达到下限值，房间的当前温度偏差值是否高于设定温度偏差阈值；
当房间的当前温度偏差值高于设定温度偏差阈值时，则关闭机组，水泵低频运转，保持系统水循环。通过本实施方式，通过关闭机组，降低水泵的转速的方式降低了空气源热泵机组系统的运行能耗，从而提高了系统的运行效率，降低了系统的能源浪费，同时保证系统稳定地运行，进而提高了房间的舒适性，为用户带来较好的体验感。
在一个实施方式中，当房间的当前温度偏差值不高于设定温度偏差阈值时，则返回至调节末端阀门开度，同步调节水泵转速，降低系统循环水量的步骤。
在一个实施方式中，控制方法还包括：
判定所述供回水温差是否变小；
当所述供回水温差变小时，则关闭水泵。
在一个实施方式中，控制方法还包括：
判定房间的当前温度偏差值是否低于设定温度偏差阈值；
当房间的当前温度偏差值低于设定温度偏差阈值，则重新开启机组和水泵。
本申请提供了一种空气源热泵机组系统，空气源热泵机组系统用于调节房间的温度，包括：
热泵机组；
供水管路，一端与热泵机组的输出端连通；
末端换热器，末端换热器的输入端与供水管路的另一端连通；
回水管路，一端与热泵机组的输入端连通，另一端与末端换热器的输出端连通；
水泵所述水泵设置在所述供水管路或所述回水管路上，
末端阀门，所述末端阀门设置在所述供水管路上；和
控制器，配合使用所述水泵与所述末端阀门采用上述任一所述空气源热泵机组系统的控制方法控制所述空气源热泵机组系统。
本申请还提供一种计算机装置，包括存储器和处理器，所述存储器存储有计算机程序，所述处理器执行所述计算机程序时实现上述任一所述空气源热泵机组系统的控制方法的步骤。
本申请还提供一种非易失计算机可读存储介质，其上存储有计算机程序，所述计算机程序被处理器执行时，实现上述任意所述空气源热泵机组系统的控制方法的步骤。
上述技术特征可以各种适合的方式组合或由等效的技术特征来替代，只要能够达到本申请的目的。
本申请提供的一种空气源热泵机组系统的控制方法和空气源热泵机组系统，与现有技术相比，至少具备有以下有益效果：
(1)根据监测到末端实际需求变化，通过调节空气源热泵机组系统的运行状态，以降低空气源热泵机组系统实际的供水温度。这样降低了空气源热泵机组系统的运行能耗，从而提高了系统的运行效率，降低了系统的能源浪费，同时保证系统稳定地运行，进而提高了房间的舒适性，为用户带来较好的体验感。
(2)通过调节空气源热泵机组系统的运行状态，以降低空气源热泵机组系统实际的供水温度，并保持空气源热泵机组系统的供回水温差不变，这样降低了空气源热泵机组系统的运行能耗，从而提高了系统的运行效率，降低了系统的能源浪费，同时保证系统稳定地运行，进而提高了房间的舒适性，为用户带来较好的体验感。
(3)通过监测房间温度变化，预测房间的负荷变化，及时调节系统的供水温度、回水温度和系统的循环水量以提高系统的运行效率，降低系统能源浪费，保证系统的稳定运行，提高了房间的舒适性，为客户带来较好地体验感。
附图说明
在下文中将基于实施例并参考附图来对本申请进行更详细的描述。其中：
图1显示了本申请实施例一的控制方法的方法流程图；
图2显示了本申请实施例二的控制方法的方法流程图；
图3显示了本申请实施例三的控制方法的方法流程图；
图4显示了本申请实施例四的控制方法的方法流程图；
图5显示了本申请实施例五的控制方法的方法流程图；
图6显示了本申请实施例六的控制方法的方法流程图；
图7显示了本申请实施例七的空气源热泵机组系统的结构示意图。
在附图中，相同的部件使用相同的附图标记。附图并未按照实际的比例。
附图标记：
10、热泵机组；20、供水管路；30、末端换热器；40、回水管路；50、水泵；60、末端阀门。
具体实施方式
下面将结合附图对本申请作进一步说明。
需要说明的是，本申请中的末端是指用空气源热泵机组系统进行采暖的房间，本申请中末端实际需求变化包括上述房间当前温度的变化。
本申请提供了一种空气源热泵机组系统的控制方法，包括：
通过监测到末端实际需求变化来控制空气源热泵机组系统的供水温度。
上述步骤中，根据监测到末端实际需求变化，通过调节空气源热泵机组系统的运行状态，以降低空气源热泵机组系统实际的供水温度。这样降低了空气源热泵机组系统的运行能耗，从而提高了系统的运行效率，降低了系统的能源浪费，同时保证系统稳定地运行，进而提高了房间的舒适性，为用户带来较好的体验感。
实施例一
如图1所示，本申请提供了一种空气源热泵机组系统的控制方法，空气源热泵机组系统空气源热泵机组系统用于调节房间的温度，空气源热泵机组系统控制方法包括以下步骤：
步骤一：将房间的目标温度设定为T，温度偏差阈值设定为ΔT1；
步骤二：将空气源热泵机组系统的供水温度设定为T1，回水温度设定为T2(图1中将步骤二与步骤一合在一起，两者没有先后顺序关系)；
步骤三：判断空气源热泵机组系统房间的当前温度偏差值是否高于设定温度偏差阈值ΔT1；其中，房间的当前温度偏差值指的是房间的当前温度与房间的目标温度的差值。
当空气源热泵机组系统房间的当前温度偏差值高于空气源热泵机组系统设定温度偏差阈值ΔT1时(若是)，则降低设定供水温度T1，同时确保供回水温差ΔT不变。
当空气源热泵机组系统房间的当前温度偏差值不高于空气源热泵机组系统设定温度偏差阈值ΔT1时(若否)，则返回至将空气源热泵机组系统空气源热泵机组系统的供水温度设定为T1，回水温度设定为T2的步骤；
其中，空气源热泵机组系统的供回水温差ΔT为设定供水温度T1与设定回水温度T2的差值，空气源热泵机组系统设定供水温度T1大于空气源热泵机组系统设定回水温度T2。
根据上述步骤，通过调节空气源热泵机组系统的运行状态，以降低空气源热泵机组系统实际的供水温度，并保持空气源热泵机组系统的供回水温差不变，这样降低了空气源热泵机组系统的运行能耗，从而提高了系统的运行效率，降低了系统的能源浪费，同时保证系统稳定地运行，进而提高了房间的舒适性，为用户带来较好的体验感。
实施例二
实施例二与实施例一的不同之处在于：
具体地，如图2所示，在一个实施例中，控制方法还包括以下步骤：
步骤四：判断空气源热泵机组系统房间的当前温度偏差值是否高于空气源热泵机组系统设定温度偏差阈值ΔT1。
当空气源热泵机组系统房间的当前温度偏差值高于空气源热泵机组系统设定温度偏差阈值ΔT1时(若是)，则继续降低空气源热泵机组系统设定供水温度T1，同步降低空气源热泵机组系统设定回水温度T2，同时确保空气源热泵机组系统的供回水温差ΔT不变。
当空气源热泵机组系统房间的当前温度偏差值不高于空气源热泵机组系统设定温度偏差阈值ΔT1时(若否)，则返回至降低空气源热泵机组系统设定供水温度T1，同时确保空气源热泵机组系统的供回水温差ΔT不变的步骤。
根据上述步骤，通过调节空气源热泵机组系统的运行状态，以降低空气源热泵机组系统实际的供水温度和回水温度，并保持空气源热泵机组系统的供回水温差不变，这样降低了空气源热泵机组系统的运行能耗，从而提高了系统的运行效率，降低了系统的能源浪费，同时保证系统稳定地运行，进而提高了房间的舒适性，为用户带来较好的体验感。
实施例二与实施例一中的其他步骤相同，此处不再赘述。
实施三
实施例三与实施例二的不同之处在于：
具体地，如图3所示，在一个实施例中，控制方法还包括以下步骤：
步骤五：判定空气源热泵机组系统设定供水温度T1低于设定下限温度时，判定空气源热泵机组系统房间的当前温度偏差值是否高于空气源热泵机组系统设定温度偏差阈值ΔT1。
当空气源热泵机组系统房间的当前温度偏差值高于空气源热泵机组系统设定温度偏差阈值ΔT1时(若是)，则调节末端阀门开度，同步联锁调节水泵转速，以降低系统循环水量。
当空气源热泵机组系统房间的当前温度偏差值不高于空气源热泵机组系统设定温度偏差阈值ΔT1时(若否)，则返回至继续降低空气源热泵机组系统设定供水温度T1，同步降低空气源热泵机组系统设定回水温度T2，同时确保空气源热泵机组系统供回水温差ΔT不变的步骤。
根据上述步骤，通过调节空气源热泵机组系统的运行状态，以降低系统循环水量，这样降低了空气源热泵机组系统的运行能耗，从而提高了系统的运行效率，降低了系统的能源浪费，同时保证系统稳定地运行，进而提高了房间的舒适性，为用户带来较好的体验感。
需要说明的是，本申请中的同步联锁调节水泵转速是指只有当末端阀门开度开始调节时，水泵转速才能够一起调节。
实施例三与实施例二中的其他步骤相同，此处不再赘述。
实施四
实施例四与实施例三的不同之处在于：
具体地，如图4所示，在一个实施例中，控制方法还包括以下步骤：
步骤六：判定空气源热泵机组系统水泵转速达到下限值，空气源热泵机组系统房间的当前温度偏差值是否高于空气源热泵机组系统设定温度偏差阈值ΔT1。
当空气源热泵机组系统房间的当前温度偏差值高于空气源热泵机组系统设定温度偏差阈值ΔT1时(若是)，则关闭机组(关闭热泵机组)，水泵低频运转，保持系统水循环。
当空气源热泵机组系统房间的当前温度偏差值不高于空气源热泵机组系统设定温度偏差阈值ΔT1时(若否)，则返回至调节末端阀门开度，同步联锁调节水泵转速，以降低系统循环水量的步骤。
根据上述步骤，通过关闭机组，降低水泵的转速的方式降低了空气源热泵机组系统的运行能耗，从而提高了系统的运行效率，降低了系统的能源浪费，同时保证系统稳定地运 行，进而提高了房间的舒适性，为用户带来较好的体验感。
实施例四与实施例三中的其他步骤相同，此处不再赘述。
实施例五
具体地，如图5所示，在一个实施例中，控制方法还包括以下步骤：
步骤七：判定空气源热泵机组系统供回水温差ΔT是否变小；
当空气源热泵机组系统供回水温差ΔT变小时(若是)，则关闭空气源热泵机组系统水泵；
当空气源热泵机组系统供回水温差ΔT不变小时(若否)，则返回至关闭机组，空气源热泵机组系统水泵低频运转，保持系统水循环的步骤。
实施例五与实施例四中的其他步骤相同，此处不再赘述。
实施例六
实施例六与实施例五的不同之处在于：
具体地，如图6所示，在一个实施例中，控制方法还包括以下步骤：
步骤八：判定空气源热泵机组系统房间的当前温度偏差值是否低于空气源热泵机组系统设定温度偏差阈值ΔT1；
当空气源热泵机组系统房间的当前温度偏差值低于空气源热泵机组系统设定温度偏差阈值ΔT1(若是)，则重新开启空气源热泵机组系统机组和空气源热泵机组系统水泵；
当空气源热泵机组系统房间的当前温度偏差值不低于空气源热泵机组系统设定温度偏差阈值ΔT1(若否)，则返回关闭空气源热泵机组系统水泵的步骤。
实施例六与实施例五中的其他步骤相同，此处不再赘述。
实施例七
如图7所示，本申请还提供了一种空气源热泵机组系统，空气源热泵机组系统用于调节房间的温度，该空气源热泵机组系统采用上述控制方法，其包括热泵机组10、供水管路20、末端换热器30、回水管路40、水泵50和末端阀门60。其中，供水管路20的一端与热泵机组10的输出端连通；末端换热器30的输入端与供水管路20的另一端连通。回水管路40的一端与热泵机组10的输入端连通，另一端与末端换热器30的输出端连通。水泵50设置在回水管路40上，末端阀门60设置在供水管路20上。水泵50与末端阀门60配合使用能够调整空气源热泵机组系统的循环水量，通过调整空气源热泵机组系统的供水温度、回水温度以及循环水量，能够提高空气源热泵机组系统的运行效率。
上述设置中，通过监测房间温度变化，预测房间的负荷变化，及时调节系统的供水温度、回水温度和系统的循环水量以提高系统的运行效率，降低系统能源浪费，保证系统的稳定运行，提高了房间的舒适性，为客户带来较好地体验感。
需要说明的是，本申请中的热泵机组10和水泵50全部采用变频控制。通过监测房间温度变化预测房间的负荷变化，及时调节系统的供水温度和输送水泵的运行状态，即根据负荷变化调节系统水温，提高系统运行效率，降低了系统的能源浪费，保证系统稳定地运行，从而提高了房间的舒适性。
需要说明的是，空气源热泵机组系统冬季制热时，机组能力输出应与房间末端负荷变化匹配，避免造成浪费。常规变频系统通过定供水温度的方式来控制机组，当房间温度达到设定值后会出现机组多次启停现象。而本申请通过监测到末端实际需求变化来控制机组的供水温度，通过调节机组的供水温度来解决常规变频系统的应用中存在的问题，比如当房间负荷减低，则通过降低机组的供水温度的方法，减少机组因房间负荷变化而造成的多次启停现象，以提高系统稳定性和系统综合能效。同时当负荷继续降低时，还可再进一步减少系统的循环水量，降低输配水泵能耗，降低输配系统的能耗。
下面阐述一个本申请的一个更为具体的实施例：
本申请提供了一种空气源热泵系统，其包括：变频空气源热泵机组、变频输送水泵、末端换热器30、循环管路(包括回水管路40和供水管路20)、温度传感器、电动调节阀(末端阀门60)等。
冬季制热过程，变频空气源热泵机组吸收空气中的热量，通过机组驱动后进行热量提升，并提供适合温度的热水到末端换热器30用于房间采暖。
机组能力调节过程：将房间的采暖温度(调节房间的温度)设定为某个适宜的目标温度值T。此时设定变频空气源热泵机组的供水温度为T1，经过房间换热后其回水温度变为T2，变频空气源热泵机组供回水温差为ΔT(T1-T2)，利用输送水泵实现热水在管网中的循环。由于室内热负荷与室外环境、人员空调使用习惯、新风量变化等多种因素相关，当室外环境温度变化，房间热负荷也会随之发生变化。当监测到房间温度高于设定温度偏差阈值ΔT1，并维持一定时间t1，此时表现为管网回水温度升高，变频空气源热泵机组检测到机组回水温度升高并维持一定的时间t1，此时通过调节机组运行状态，降低机组的实际供水温度，并保持机组供回水温差ΔT不变，降低机组的运行能耗。如果此时房间温度仍高于设定温度偏差阈值ΔT1，仍可继续降低机组的供水温度，此时机组的调节方法为变频控制压缩机转速，保持供回水温差ΔT不变的前提下，使得机组的回水温度同步降低。当机组供水温度已经降低到设定下限温度时，监测到房间温度仍高于设定温度偏差阈值ΔT1，机 组的回水温度高于设定的下限值。此时通过调节房间末端换热器30的阀门开度(电动调节阀的开度)，减小末端换热热水流量，同步联锁调节变频输送水泵的转速，降低系统的循环水量，降低变频输送水泵的输配系统能耗。当变频输送水泵的转速降低到下限值，即水泵效率衰减较大时对应的转速值，并维持一定的时间t3，房间温度仍然高于设定温度偏差阈值ΔT1，此时关闭变频空气源热泵机组制热，而变频输送水泵继续保持最低允许频率运行维持系统水循环。当只开启变频输送水泵循环时，监测到系统供回水温差ΔT逐渐变小，并维持一定时间t4，关闭变频输送水泵。当变频空气源热泵机组的主机和变频输送水泵停止运行后，监测到房间温度低于设定温度偏差阈值ΔT1时，并维持一定时间t5，重新开启变频输送水泵和变频空气源热泵机组制热。同时，在系统调节过程中，如果房间温度下降，并降低至小于预先设定的房间温度偏差值的下限，那么停止机组降频控制，并且应适当增加机组的运行频率，提高房间的温度。如此循环控制，实现系统效率的提升。
需要说明的是，此控制方法可优先通过降低热水供水温度，提高变频空气源热泵机组的效率，减少其频繁启停，降低其使用故障，保护压缩机使用寿命，同时可降低房间温度波动的频率、维持末端房间的舒适性，减少房间热量的浪费。同时通过变频输送水泵调节系统流量，可降低水泵的输送能耗，提高系统的综合运行效率。
本申请中的空气源热泵系统及其控制方法具有以下优点：
1、提高系统的综合能效，减少运行费用；
2、提高机组运行效率，降低机组耗电量；
3、降低输送设备能耗，减少系统耗电量；
4、提高系统的负荷调节范围，降低无效的能源浪费。
在一个实施例中，本申请还提供了一种计算机装置，包括存储器和处理器，存储器中存储有计算机程序，该处理器执行计算机程序时执行上述空气源热泵机组系统的控制方法的步骤。
在一个实施例中，提供了一种非易失计算机可读存储介质，其上存储有计算机程序，计算机程序被处理器执行上述空气源热泵机组系统的控制方法的步骤。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分流程，是可以通过计算机程序来指令相关的硬件来完成，所述的计算机程序可存储于一非易失性计算机可读取存储介质中，该计算机程序在执行时，可包括如上述各方法的实施例的流程。其中，本申请所提供的各实施例中所使用的对存储器、存储、数据库或其它介质的任何引用，均可包括非易失性和易失性存储器中的至少一种。非易失性存储器可包括只读存储器(Read-Only Memory，ROM)、磁带、软盘、闪存或光存储器等。易失性存储器可包括随 机存取存储器(Random Access Memory，RAM)或外部高速缓冲存储器。作为说明而非局限，RAM可以是多种形式，比如静态随机存取存储器(Static Random Access Memory，SRAM)或动态随机存取存储器(Dynamic Random Access Memory，DRAM)等。
在本申请的描述中，需要理解的是，术语“上”、“下”、“底”、“顶”、“前”、“后”、“内”、“外”、“左”、“右”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。
虽然在本文中参照了特定的实施方式来描述本申请，但是应该理解的是，这些实施例仅仅是本申请的原理和应用的示例。因此应该理解的是，可以对示例性的实施例进行许多修改，并且可以设计出其他的布置，只要不偏离所附权利要求所限定的本申请的精神和范围。应该理解的是，可以通过不同于原始权利要求所描述的方式来结合不同的从属权利要求和本文中所述的特征。还可以理解的是，结合单独实施例所描述的特征可以使用在其他所述实施例中。

Claims (12)

  1. 一种空气源热泵机组系统的控制方法，其特征在于，包括：
    通过监测到末端实际需求变化来控制所述空气源热泵机组系统的供水温度。
  2. 根据权利要求1所述的空气源热泵机组系统的控制方法，其特征在于，包括：
    设定房间的目标温度(T)，设定温度偏差阈值(ΔT1)；
    设定所述空气源热泵机组系统的供水温度(T1)和回水温度(T2)；
    判断所述房间的当前温度偏差值是否高于设定温度偏差阈值(ΔT1)，其中，所述房间的所述当前温度偏差值为所述房间的当前温度与所述房间的所述目标温度(T)的差值；
    当所述房间的所述当前温度偏差值高于所述设定温度偏差阈值(ΔT1)时，则降低所述设定供水温度(T1)，同时确保供回水温差(ΔT)不变；
    其中，所述供回水温差(ΔT)为所述设定供水温度(T1)与所述设定回水温度(T2)的之差，所述设定供水温度(T1)大于所述设定回水温度(T2)。
  3. 根据权利要求2所述的空气源热泵机组系统的控制方法，其特征在于，还包括：
    判断所述房间的当前温度偏差值是否高于所述设定温度偏差阈值(ΔT1)；
    当所述房间的当前温度偏差值高于所述设定温度偏差阈值(ΔT1)时，则继续降低所述设定供水温度(T1)，同步降低所述设定回水温度(T2)，同时确保所述供回水温差(ΔT)不变。
  4. 根据权利要求3所述的空气源热泵机组系统的控制方法，其特征在于，
    当所述房间的当前温度偏差值不高于所述设定温度偏差阈值(ΔT1)时，则返回至降低所述设定供水温度(T1)，同时确保所述供回水温差(ΔT)不变的步骤。
  5. 根据权利要求3所述的空气源热泵机组系统的控制方法，其特征在于，还包括：
    判定所述设定供水温度(T1)低于设定下限温度时，判定所述房间的当前温度偏差值是否高于所述设定温度偏差阈值(ΔT1)；
    当所述房间的当前温度偏差值高于所述设定温度偏差阈值(ΔT1)时，则调节末端阀门开度，同步调节水泵转速，降低系统循环水量。
  6. 根据权利要求5所述的空气源热泵机组系统的控制方法，其特征在于，还包括：
    判定所述水泵转速达到下限值，所述房间的当前温度偏差值是否高于所述设定温度偏 差阈值(ΔT1)；
    当所述房间的当前温度偏差值高于所述设定温度偏差阈值(ΔT1)时，则关闭机组，所述水泵低频运转，保持系统水循环。
  7. 根据权利要求6所述的空气源热泵机组系统的控制方法，其特征在于，当所述房间的当前温度偏差值不高于所述设定温度偏差阈值(ΔT1)时，则返回至调节末端阀门开度，同步调节水泵转速，降低系统循环水量的步骤。
  8. 根据权利要求6所述的空气源热泵机组系统的控制方法，其特征在于，还包括：
    判定所述供回水温差(ΔT)是否变小；
    当所述供回水温差(ΔT)变小时，则关闭所述水泵。
  9. 根据权利要求8所述的空气源热泵机组系统的控制方法，其特征在于，还包括：
    判定所述房间的当前温度偏差值是否低于所述设定温度偏差阈值(ΔT1)；
    当所述房间的当前温度偏差值低于所述设定温度偏差阈值(ΔT1)，则重新开启所述机组和所述水泵。
  10. 一种空气源热泵机组系统，其特征在于，所述空气源热泵机组系统用于调节房间的温度，包括：
    热泵机组；
    供水管路，一端与所述热泵机组的输出端连通；
    末端换热器，所述末端换热器的输入端与所述供水管路的另一端连通；
    回水管路，一端与所述热泵机组的输入端连通，另一端与所述末端换热器的输出端连通；
    水泵所述水泵设置在所述供水管路或所述回水管路上，
    末端阀门，所述末端阀门设置在所述供水管路上；和
    控制器，配合使用所述水泵与所述末端阀门采用权利要求1至8中任一项所述的方法控制所述空气源热泵机组系统。
  11. 一种计算机装置，包括存储器和处理器，所述存储器存储有计算机程序，其特征在于，所述处理器执行所述计算机程序时实现权利要求1至8中任一项所述的方法的步骤。
  12. 一种非易失计算机可读存储介质，其上存储有计算机程序，其特征在于，所述计算机程序被处理器执行时，实现权利要求1至8中任一项所述的方法的步骤。
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