WO2024098471A1 - 水温控制方法、设备及存储介质 - Google Patents

水温控制方法、设备及存储介质 Download PDF

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Publication number
WO2024098471A1
WO2024098471A1 PCT/CN2022/134413 CN2022134413W WO2024098471A1 WO 2024098471 A1 WO2024098471 A1 WO 2024098471A1 CN 2022134413 W CN2022134413 W CN 2022134413W WO 2024098471 A1 WO2024098471 A1 WO 2024098471A1
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Prior art keywords
temperature
water temperature
target
water
difference
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/CN2022/134413
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English (en)
French (fr)
Inventor
李金波
徐振坤
黄剑云
钟名亮
黄招彬
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 Air Conditioning Equipment Co Ltd
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GD Midea Air Conditioning Equipment Co Ltd
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Priority to EP22964938.9A priority Critical patent/EP4617579A4/en
Publication of WO2024098471A1 publication Critical patent/WO2024098471A1/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
    • F24F11/62—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
    • F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
    • F24D17/00—Domestic hot-water supply systems
    • F24D17/02—Domestic hot-water supply 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
    • F24F11/46—Improving electric energy efficiency or saving
    • 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
    • F24F11/50—Control or safety arrangements characterised by user interfaces or communication
    • F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
    • 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
    • F24F11/89—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B13/00—Compression machines, plants or systems, with reversible cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00—Fluid-circulation arrangements
    • F25B41/40—Fluid line arrangements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • F25B49/022—Compressor control arrangements
    • 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
    • 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
    • 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
    • F24F2140/20—Heat-exchange fluid temperature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2313/00—Compression machines, plants or systems with reversible cycle not otherwise provided for
    • F25B2313/003—Indoor unit with water as a heat sink or heat source
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/025—Compressor control by controlling speed
    • F25B2600/0253—Compressor control by controlling speed with variable speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2600/00—Control issues
    • F25B2600/13—Pump speed control
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2116—Temperatures of a condenser
    • F25B2700/21161—Temperatures of a condenser of the fluid heated by the condenser

Definitions

  • the present application relates to the technical field of air conditioners, and in particular to a water temperature control method, device and storage medium.
  • the set water temperature of the heat pump hot and cold water unit is fixed, or the set water temperature can only be simply adjusted according to the ambient temperature.
  • the heat pump hot and cold water unit is used to cool or heat multiple rooms at the same time, if the room temperature changes, the set temperature cannot be adjusted in time, resulting in the operating water temperature of the hot and cold water unit not matching the actual load, and the room temperature control is not stable and precise enough.
  • the main purpose of the present application is to provide a water temperature control method, device and storage medium, aiming to solve the technical problem in the prior art that the water temperature of the heat pump unit cannot be precisely and accurately controlled.
  • the present application provides a water temperature control method, which is applied to an environmental conditioning system, wherein the environmental conditioning system comprises the heat pump unit, a water supply flow path, a return flow path, and at least one heat exchange component, wherein the heat pump unit and each heat exchange component are connected via the water supply flow path and the return flow path;
  • the water temperature control method comprises:
  • the target temperature difference parameter represents a temperature difference state between an ambient temperature of the indoor environment and a set temperature
  • the operation of the heat pump unit is controlled based on the target water temperature.
  • the target temperature difference parameter includes the temperature difference between the ambient temperature and the set temperature and/or the change information of the difference between the ambient temperature and the set temperature
  • the step of determining the target water temperature according to the target temperature difference parameter includes:
  • the target water temperature is determined according to the temperature difference and/or the difference change information.
  • the step of determining the target water temperature according to the temperature difference and/or the difference change information includes:
  • the target water temperature is determined according to the first target temperature and the water temperature correction value.
  • the method further includes:
  • the target water temperature is determined according to the current water temperature of the heat exchange component, the first target temperature, the water temperature correction value and the second target temperature of the previous water supply of the heat pump unit;
  • the first target temperature is maintained as the target water temperature.
  • the step of determining the target water temperature according to the current water temperature of the heat exchange component, the first target temperature, the water temperature correction value, and the second target temperature of the water supplied by the heat pump unit last time comprises:
  • the target water temperature is determined according to the temperature minimum value and the water temperature correction value.
  • the step of obtaining the temperature difference and the difference change information includes:
  • the ambient temperature and set temperature of the target area are obtained;
  • the previous temperature difference is obtained, and difference change information is determined according to the temperature difference and the previous temperature difference.
  • controlling the operation of the heat pump unit based on the target water temperature includes:
  • the operation of the heat pump unit is regulated and controlled based on the corrected target water temperature.
  • the method further includes:
  • the process returns to the step of obtaining the target temperature difference parameter of the target area to be adjusted by the heat exchange component.
  • determining the target duration according to the current temperature difference between the ambient temperature of the target area and the set temperature, the change information of the difference between the ambient temperature and the set temperature, and/or the number of times the target water temperature is adjusted includes:
  • the target duration is determined according to the difference change information and a preset change coefficient.
  • the present application also proposes a water temperature control device, which includes: a memory, a processor, and a water temperature control program stored in the memory and executable on the processor, and the water temperature control program is configured to implement the steps of the water temperature control method described above.
  • the present application also proposes a storage medium, on which a water temperature control program is stored.
  • a water temperature control program is executed by a processor, the steps of the water temperature control method described above are implemented.
  • the present application discloses a water temperature control method, which is applied to an environmental regulation system, wherein the environmental regulation system comprises the heat pump unit, a water supply flow path, a return water flow path and at least one heat exchange component, wherein the heat pump unit and each heat exchange component are connected via the water supply flow path and the return water flow path; the water temperature control method comprises: obtaining a target temperature difference parameter of a target area regulated by the heat exchange component, wherein the target temperature difference parameter represents the temperature difference state between the ambient temperature of the indoor environment and the set temperature; determining a target water temperature of the water supply flow path according to the target temperature difference parameter; and controlling the operation of the heat pump unit based on the target water temperature.
  • the present application uses the target temperature difference parameter of the target area where the heat pump unit and each heat exchange component are located in the environmental regulation system, and controls the operation of the heat pump unit based on the target water temperature.
  • the target temperature difference parameter is used to determine the target water temperature of the water supply water circuit, and then the operation of the heat pump unit is controlled according to the target water temperature, wherein the target temperature difference parameter is used to characterize the temperature difference state between the ambient temperature of the indoor environment and the set temperature, and the operating state of the heat pump unit is controlled by the temperature parameters in the actual environment, thereby avoiding the technical problem in the prior art that the water temperature of the heat pump unit cannot be precisely and accurately controlled, and at the same time, the stability and accuracy of temperature control in each area are improved, and energy consumption is lower.
  • FIG1 is a schematic diagram of the structure of a water temperature control device in a hardware operating environment according to an embodiment of the present application
  • FIG2 is a schematic flow chart of a first embodiment of a water temperature control method of the present application.
  • FIG3 is a structural block diagram of a heat pump unit according to an embodiment of a water temperature control method of the present application
  • FIG4 is a structural block diagram of a water temperature control system according to an embodiment of a water temperature control method of the present application.
  • FIG5 is a control logic diagram of an embodiment of a water temperature control method of the present application.
  • FIG6 is a flow chart of a second embodiment of the water temperature control method of the present application.
  • FIG. 1 is a schematic diagram of the structure of a water temperature control device in a hardware operating environment involved in an embodiment of the present application.
  • the water temperature control device may include: a processor 1001, such as a central processing unit (CPU), a communication bus 1002, a user interface 1003, a network interface 1004, and a memory 1005.
  • the communication bus 1002 is used to realize the connection and communication between these components.
  • the user interface 1003 may include a display screen (Display), an input unit such as a keyboard (Keyboard), and the user interface 1003 may optionally include a standard wired interface and a wireless interface.
  • the network interface 1004 may optionally include a standard wired interface and a wireless interface (such as a wireless fidelity (Wireless-Fidelity, Wi-Fi) interface).
  • the memory 1005 may be a high-speed random access memory (Random Access Memory, RAM) or a stable non-volatile memory (Non-Volatile Memory, NVM), such as a disk storage.
  • RAM Random Access Memory
  • NVM Non-Volatile Memory
  • the memory 1005 may optionally be a storage device independent of the aforementioned processor 1001.
  • FIG. 1 does not constitute a limitation on the water temperature control device, and may include more or fewer components than shown, or a combination of certain components, or a different arrangement of components.
  • the memory 1005 as a storage medium may include an operating system, a network communication module, a user interface module, and a water temperature control program.
  • the network interface 1004 is mainly used for data communication with the network server;
  • the user interface 1003 is mainly used for data interaction with the user;
  • the processor 1001 and the memory 1005 in the water temperature control device of the present application can be set in the water temperature control device, and the water temperature control device calls the water temperature control program stored in the memory 1005 through the processor 1001, and executes the water temperature control method provided in the embodiment of the present application.
  • FIG. 2 is a flow chart of a first embodiment of a water temperature control method of the present application.
  • the water temperature control method comprises the following steps:
  • Step S10 obtaining a target temperature difference parameter of a target area adjusted by the heat exchange component, wherein the target temperature difference parameter represents a temperature difference state between an ambient temperature of the indoor environment and a set temperature.
  • the executor of the method of the present application may be a device with data acquisition or data processing functions, such as: a control device of a heat pump unit, or other devices that can achieve the same or similar functions, such as: an external control computer or computer, etc.
  • a control device of a heat pump unit or other devices that can achieve the same or similar functions, such as: an external control computer or computer, etc.
  • the present application does not impose specific restrictions on this.
  • the control device of a heat pump unit will be used as an example for explanation.
  • the heat pump unit is a heat pump hot and cold water unit.
  • the heat pump unit includes: a compressor 1, a water-side heat exchanger 2, a four-way reversing valve 3, a throttling component 4, and a heat source side heat exchanger 5, wherein the compressor 1 is used to control the refrigerant temperature inside the heat pump unit pipeline, control the temperature of each heat exchanger, and then exchange heat with the outside to achieve heating or cooling; the water-side heat exchanger 2 is used to exchange heat with the water in the external water tank to control the external water temperature; the four-way reversing valve 3 is used to adjust the flow direction of the refrigerant in the heat pump unit.
  • the valve position of the four-way reversing valve 3 is different from the connecting port; the throttling component 4 is used to control the flow speed of the refrigerant in the heat pump unit to control the speed of heat exchange with the external.
  • the throttling component 4 The larger the opening, the faster the heat exchange, and the smaller the opening, the slower the heat exchange. It is also used to release the pressure of the refrigerant to facilitate the form conversion of the refrigerant.
  • the heat source side heat exchanger 5 can be used as an evaporator or condenser in different modes, and this application does not impose specific restrictions on this.
  • Figure 3 is a structural block diagram of the heat pump unit proposed in the present application, wherein the output end of the compressor 1 is connected to the first connecting port D of the four-way reversing valve 3, the second connecting port C of the four-way reversing valve 3 is connected to the first end of the water side heat exchanger 2, the third connecting port S of the four-way reversing valve 3 is connected to the second end of the compressor 1, the fourth connecting port E of the four-way reversing valve 3 is connected to the first end of the heat source side heat exchanger 5, the second connecting port of the water side heat exchanger 2 is connected to the second end of the throttling component 4, and the second end of the heat source side heat exchanger 5 is connected to the first end of the throttling component 4.
  • the compressor 1 runs to compress the refrigerant to obtain high-temperature and high-pressure refrigerant, and the high-temperature and high-pressure refrigerant is transmitted to the water-side heat exchanger through the four-way reversing valve 3 under the action of pressure.
  • the water-side heat exchanger 2 acts as a condenser. After heat exchange with the water in the water-side heat exchanger 2, the inlet water temperature is lower than the outlet water temperature, thereby increasing the temperature of the external water body.
  • the refrigerant flows through the throttling component 4 in a high-pressure and medium-temperature state, and then passes through the throttling component 4.
  • Component 4 obtains low-pressure and medium-temperature refrigerant that flows through the heat source side heat exchanger 5.
  • the heat source side heat exchanger 5 acts as an evaporator to obtain low-temperature and low-pressure refrigerant, and finally flows back to the compressor 1 through the four-way reversing valve 3 to complete the heating process.
  • the first connecting port D and the second connecting port C of the four-way reversing valve 3 are connected to realize the transportation of the refrigerant to the water side heat exchanger 2 for condensation, and the third connecting port S and the fourth connecting port E of the four-way reversing valve 3 are connected to recover the refrigerant to the compressor 1 to facilitate the next refrigerant compression.
  • the compressor 1 When the heat pump unit is operated in the cooling mode, referring to the dotted refrigerant flow direction in Figure 3, the compressor 1 operates by compressing the internal refrigerant into a high-temperature and high-pressure refrigerant, and transporting it to the heat source side heat exchanger 5 through the four-way reversing valve 3. At this time, the heat source side heat exchanger 5 acts as a condenser to condense the refrigerant to obtain a medium-temperature and high-pressure refrigerant, and then reduces the pressure through the throttling component 4 to obtain a low-pressure and medium-temperature refrigerant. The refrigerant then flows through the water side heat exchanger 2 for heat exchange.
  • the water-heat heat exchanger 2 acts as an evaporator to absorb the heat of the water body, thereby realizing water body refrigeration.
  • the four-way reversing valve 3 flows back to the compressor 1 to complete the refrigeration process.
  • the first connecting port D of the four-way reversing valve 3 is connected to the fourth connecting port E to realize the transportation of the refrigerant to the heat source side heat exchanger 5 for condensation, and the second connecting port C of the four-way reversing valve 3 is connected to the third connecting port S to recover the refrigerant to the compressor 1 for the next refrigerant compression.
  • the heat pump unit will continue to run the cooling operation so that the water temperature of the water-side heat exchanger drops to a certain temperature.
  • the heat pump unit will shut down to avoid further lowering the temperature and deviating from the user's usage needs.
  • the water in the water-side heat exchanger area flows through the pipes through each room to exchange heat with the outside world, and then flows back to the water tank, which will cause the water temperature at the water-side heat exchanger to rise.
  • the heat pump unit will restart.
  • the heat pump unit is arranged in an environmental conditioning system, which includes a heat pump unit, a water supply flow path, a return flow path and at least one heat exchange component.
  • the heat pump unit and each heat exchange component are connected through the water supply flow path and the return flow path, and the heat exchange component corresponds to the installation area, that is, the heat exchange components installed in the same area can be regarded as the same heat exchange component.
  • the heat pump unit includes: various types of heat pump hot and cold water units, such as air source heat pump units, air-cooled heat pump units, ground source heat pump units, etc., and the present application does not make specific restrictions on this.
  • each room connected to the heat pump hot and cold water units is taken as an example for explanation.
  • the heat exchange components in each room can be floor heating coils, radiation panels, air discs or heat sinks and other equipment, or other equipment that can realize heat exchange with the heat pump hot and cold water units. This application does not make specific restrictions on this.
  • the heat pump unit controls the temperature of the water on the outlet side through the water-side heat exchanger, and outputs the water on the outlet side to each room through the water supply flow path for heat exchange, and then flows back to the heat pump unit through the return flow path connected to each room to facilitate the next heat exchange.
  • the heat exchange component is installed corresponding to a target area, and multiple heat exchange components can also be installed in the same target area.
  • the target area can be an area where water temperature control is required. Different choices can be made depending on the area connected to the heat pump unit. Take multiple rooms connected to the heat pump unit as an example for explanation. Refer to Figure 4, which is a structural block diagram of the water temperature control system of the present application.
  • the target temperature difference parameter represents the temperature difference state between the ambient temperature and the set temperature of the indoor environment, wherein the temperature difference state includes: temperature difference and/or difference change information, the temperature difference refers to the difference between the room air temperature and the user-set temperature in the room, the difference change information refers to the change value between the temperature difference and the temperature difference at the previous temperature correction, and the change value can be the difference.
  • the setting of the outlet water temperature of the water-side heat exchanger in the heat pump unit can be determined according to the user-set temperature of each room and the operating mode of the heat pump unit.
  • the maximum value of the outlet water temperature of the water-side heat exchanger in the heat pump unit can be the maximum value of the set temperatures of each room; and when the heat pump unit is operating in cooling mode, the minimum value of the outlet water temperature of the water-side heat exchanger in the heat pump unit can be the minimum value of the set temperatures of each room.
  • the steps for obtaining the temperature difference and difference change information of the target area can be specifically as follows: at a preset time period, obtain the ambient temperature and the set temperature of the target area, calculate the temperature difference based on the ambient temperature and the set temperature, obtain the previous temperature difference, and determine the difference change information based on the temperature difference and the previous temperature difference.
  • the preset time period can be determined based on the previous temperature difference. If it is the first water temperature adjustment, the preset time period can be 120s. This application does not make specific restrictions on this.
  • the preset time period can be determined according to a temperature difference-period association table.
  • the temperature difference-period association table can refer to Table 1.
  • E_TA refers to the difference between the room air temperature and the set temperature
  • x, y, S1, S2, S3 are determined according to experimental values
  • Step S20 determining the target water temperature of the water supply flow path according to the target temperature difference parameter.
  • the target temperature difference parameter includes the temperature difference between the ambient temperature and the set temperature and the difference change information between the ambient temperature and the set temperature. That is, when the target water temperature of the water supply path is determined according to the target temperature difference parameter, the target water temperature can be determined according to the temperature difference and/or the difference change information.
  • the step of determining the target water temperature according to the temperature difference and/or the difference change information includes:
  • the target water temperature is determined according to the first target temperature and the water temperature correction value.
  • the first target temperature refers to the corresponding total water supply total target temperature in the operating mode of the heat pump unit.
  • the first target temperature in the heating mode can be the maximum value among the target temperatures set for each room, which serves as the first target temperature in the heating mode of the heat pump unit.
  • the first target temperature in the cooling mode can be the minimum value among the target temperatures set for each room, which serves as the first target temperature in the heating mode of the heat pump unit.
  • the water temperature correction value is used as a reference to correct the water temperature for controlling the water temperature of the heat pump unit according to the temperature difference between the ambient temperature of the indoor environment and the set temperature.
  • the present application can respectively determine the target intervals of the temperature difference and the difference change information, and then query the accurate water temperature correction value through the target intervals corresponding to the temperature difference and the difference change information.
  • the target interval refers to a numerical interval determined by a correlation table corresponding to the water temperature correction value and the temperature difference/difference change information, and the water temperature correction value corresponding to the target interval is obtained by querying the correlation table.
  • association table is shown in Table 2:
  • ⁇ TWsb_n is the target water temperature adjustment amount
  • ⁇ E_TAh_n is the actual air temperature change value of room n
  • E_TA_n is the difference between the actual air temperature of room n and the set temperature.
  • the set temperature of each target area is determined according to the water temperature correction value, and different target water temperature setting strategies are used according to the size of the water temperature correction value. For example, when the water temperature correction value is greater than 0, it means that the target water temperature of the room needs to be increased. At this time, the water temperature correction value can be added to the total water supply target water temperature of the heat pump unit, and the result of the addition can be used as the set water temperature of the room to achieve the purpose of increasing the set water temperature of the target room.
  • the step of determining the water temperature correction value according to the temperature difference and/or the difference change information further includes:
  • the target water temperature is determined according to the current water temperature of the heat exchange component, the first target temperature, the water temperature correction value and the second target temperature of the water supplied by the heat pump unit last time;
  • the first target temperature is maintained as the target water temperature.
  • the second target temperature of the water supplied by the heat pump unit last time refers to the target water supply temperature obtained when the water temperature of the heat pump unit was controlled last time.
  • the water temperature adjustment strategy for the target area can be determined based on the size relationship between the water temperature correction value and the preset water temperature correction threshold, wherein the preset water temperature correction threshold can be 0 to determine whether the water temperature needs to be increased or decreased according to the water temperature correction value.
  • the water temperature correction value when the water temperature correction value is greater than 0, it indicates that the target water temperature of the room needs to be increased. At this time, the water temperature correction value can be added to the total water supply target water temperature of the heat pump unit, and the result of the addition is used as the set water temperature of the room; when the water temperature correction value is equal to 0, it indicates that the water temperature of the room is just right and does not need to be increased or decreased. The set water temperature of the room can be maintained to keep the current state unchanged.
  • the water temperature correction value when the water temperature correction value is less than 0, it means that the target water temperature of the room needs to be lowered.
  • the actual water temperature of the target room, the current set temperature and the set water temperature obtained by the last water temperature control can also be referred to when lowering the water temperature, and a comprehensive comparison can be made to select a water temperature adjustment scheme with less impact.
  • the target water temperature TWsb ⁇ TWsb+min(TWsr, TWso, TWsb(n-1)), wherein TWsr is the actual water temperature, TWso is the current target water temperature, and TWsb(n-1) is the target water temperature obtained by the last control algorithm.
  • the water temperature correction value is equal to 0, it means that the temperature of the target area is in the optimal state at this time, and the user experience can be guaranteed by maintaining the total water supply target water temperature as the target water temperature.
  • Step S30 controlling the operation of the heat pump unit based on the target water temperature.
  • the target water temperature is adjusted to the target water temperature according to the target water temperature adjustment speed ⁇ TWS preset by the control module.
  • the total water supply temperature under the current operating mode may also change.
  • the operating frequency of the compressor in the heat pump unit can be adjusted to adjust the water temperature of the water outlet of the water temperature heat exchanger, so as to achieve the purpose of adjusting the total water supply temperature.
  • T1_Rn is the air temperature of room n
  • T1s_Rn is the set temperature of room n
  • TWsb is the target water temperature
  • TWsb(n-1) is the water temperature obtained by the previous control algorithm
  • TWso is the current target water temperature
  • TWsr is the current actual water temperature
  • E_TA_n is the difference between the actual air temperature of room n and the set temperature
  • ⁇ E_TAh_n is the change value of the actual air temperature of room n
  • ⁇ E_TA_n is the change value of the difference between the actual air temperature of room n and the set temperature
  • TWsb_n is the target water temperature of room n
  • TWM is the adjustment period
  • ⁇ TWsb is the target water temperature adjustment amount
  • ⁇ TWS is the target water temperature adjustment speed.
  • controlling the operation of the heat pump unit based on the target water temperature includes:
  • the operation of the heat pump unit is regulated and controlled based on the corrected target water temperature.
  • the theoretical target water temperature range refers to the water temperature value range of the compressor in this operating mode.
  • the water temperature cannot be higher than 100 degrees Celsius or lower than 0 degrees Celsius.
  • the heat pump unit has different theoretical operating frequency ranges under different operating modes.
  • the water temperature will not be pushed close to the extreme water temperature.
  • different theoretical water temperature ranges can be set according to different operating modes of the heat pump unit.
  • the adjusted target water temperature can be adjusted according to the interval relationship between the adjusted target water temperature and the theoretical target water temperature range in cooling mode.
  • the theoretical target water temperature range in cooling mode is TWminC-TWmaxC. If the adjusted target water temperature is less than TWminC, the adjusted target water temperature is corrected to TWminC; if the adjusted target water temperature is greater than TWmaxC, the adjusted target water temperature is corrected to TWmaxC.
  • the adjusted target water temperature can be adjusted according to the interval relationship between the adjusted target water temperature and the theoretical target water temperature range in the heating mode.
  • the theoretical target water temperature range in the heating mode is TWminH-TWmaxH. If the adjusted target water temperature is less than TWminH, the adjusted target water temperature is corrected to TWminH; if the adjusted target water temperature is greater than TWmaxH, the adjusted target water temperature is corrected to TWmaxH.
  • the present application uses the target temperature difference parameters of the target areas where the heat pump unit and each heat exchange component are located in the environmental regulation system, and determines the target water temperature of the water supply waterway according to the target temperature difference parameters, and then controls the operation of the heat pump unit according to the target water temperature, wherein the target temperature difference parameters are used to characterize the temperature difference state between the ambient temperature and the set temperature of the indoor environment, and controls the operating state of the heat pump unit according to the temperature parameters in the actual environment, thereby avoiding the technical problem in the prior art that the water temperature of the heat pump unit cannot be precisely and accurately controlled, and at the same time improves the stability and accuracy of temperature control in each area, and consumes less energy.
  • FIG. 6 is a flow chart of a second embodiment of a water temperature control method of the present application.
  • the water temperature control method further includes:
  • Step S50 determining the target duration according to the current temperature difference between the ambient temperature and the set temperature of the target area, the change information of the difference between the ambient temperature and the set temperature, and/or the number of times the target water temperature is adjusted.
  • the heat pump unit heats or cools each room
  • the temperature in the room will not always be maintained at a stable state due to the operating power, operating time and monitoring interval of the heat pump unit. For example, if the temperature is high at this time, the heat pump system adjusts the water temperature to lower the temperature of the room. After a period of time, the temperature of the room may drop to a state that does not meet the user's needs, and the water temperature needs to be readjusted. Therefore, as long as the water temperature is effectively adjusted every time, the number of water temperature adjustments can be updated, and the target duration refers to the time interval for obtaining the temperature difference between the ambient temperature of the indoor environment and the set temperature.
  • the preset number of adjustments is used to determine whether it is necessary to shorten the time interval for adjacent acquisitions of temperature information.
  • the preset number of adjustments can be set by the user, for example: 4 or 5, etc., and this application does not impose specific restrictions on this.
  • the water temperature adjustment range is not large, it means that the temperature in the room is normally dissipated, and the heat pump unit is operating normally.
  • the preset time period can be maintained without adjusting the preset time period.
  • the water temperature is adjusted each time more than the set temperature difference threshold, it means that the temperature dissipation process in the room is abnormal, and the temperature acquisition cycle needs to be shortened to facilitate more precise control of the indoor temperature and improve user experience.
  • the preset time period may be determined according to a temperature difference-period association table.
  • the temperature difference-period association table may refer to Table 3.
  • E_TA refers to the difference between the room air temperature and the set temperature
  • x, y, S1, S2, S3 are determined according to experimental values
  • Step S60 after a target time interval, return to the step of obtaining a target temperature difference parameter of the target area to be adjusted by the heat exchange component.
  • the temperature difference between the ambient temperature of the indoor environment and the set temperature is obtained for the first time, and effective water temperature control of the heat pump unit is performed for 120 seconds. Then, the temperature difference between the ambient temperature of the indoor environment and the set temperature is obtained for the second time, and effective water temperature control of the heat pump unit is performed. After 90 seconds, the temperature difference between the ambient temperature of the indoor environment and the set temperature is obtained for the third time, and effective water temperature control of the heat pump unit is performed.
  • the target duration is determined according to the difference change information and the preset change coefficient, that is, when
  • This application determines whether the adjustment cycle needs to be shortened based on the number of temperature adjustments and the temperature difference after adjustment, so as to provide more precise temperature control and improve the user experience.
  • an embodiment of the present application further proposes a storage medium, on which a water temperature control program is stored.
  • a water temperature control program is executed by a processor, the steps of the water temperature control method described above are implemented.
  • the storage medium adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought by the technical solutions of the above embodiments, which will not be described one by one here.
  • the computer software product is stored in a storage medium (such as a read-only memory (ROM)/RAM, a magnetic disk, or an optical disk), and includes a number of instructions for a terminal device (which can be a mobile phone, a computer, a server, or a network device, etc.) to execute the methods described in each embodiment of the present application.
  • a storage medium such as a read-only memory (ROM)/RAM, a magnetic disk, or an optical disk
  • a terminal device which can be a mobile phone, a computer, a server, or a network device, etc.

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Abstract

本申请涉及空调器技术领域，尤其涉及一种水温控制方法、设备及存储介质。所述水温控制方法包括：获取所述换热部件调节的目标区域的目标温差参数，所述目标温差参数表征所述室内环境的环境温度与设定温度之间的温差状态；根据所述目标温差参数确定所述供水流路的目标水温；基于所述目标水温控制所述热泵机组运行。

Description

水温控制方法、设备及存储介质
相关申请
本申请要求于2022年11月8日申请的、申请号为202211394067.9的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及空调器技术领域，尤其涉及一种水温控制方法、设备及存储介质。
背景技术
传统技术中，热泵冷热水机组的设定水温是固定的，或者只能简单地根据环境温度调整设定水温的取值，在通过热泵冷热水机组同时给多个房间进行制冷或者供暖时，若是房间温度发生变化，无法及时调整设定温度，导致冷热水机组运行水温与实际负荷不匹配，且使得房间温度控制不够稳定和精细。
上述内容仅用于辅助理解本申请的技术方案，并不代表承认上述内容是现有技术。
发明内容
本申请的主要目的在于提供一种水温控制方法、设备及存储介质，旨在解决现有技术中无法精细准确控制热泵机组的水温的技术问题。
为实现上述目的，本申请提供了一种水温控制方法，所述水温控制方法应用于环境调节系统，所述环境调节系统包含所述热泵机组、供水流路、回水流路以及至少一个换热部件，所述热泵机组与各换热部件之间通过所述供水流路与所述回水流路连接；所述水温控制方法包括：
获取所述换热部件调节的目标区域的目标温差参数，所述目标温差参数表征所述室内环境的环境温度与设定温度之间的温差状态；
根据所述目标温差参数确定所述供水流路的目标水温；
基于所述目标水温控制所述热泵机组运行。
在一实施例中，所述目标温差参数包括所述环境温度与设定温度的温度差值和/或所述环境温度与设定温度的差值变化信息，所述根据所述目标温差参数确定所述目标水温的步骤包括：
根据所述温度差值和/或所述差值变化信息确定所述目标水温。
在一实施例中，所述根据所述温度差值和/或所述差值变化信息确定所述目标水温的步骤包括：
获取所述热泵机组供水当前的第一目标温度；
根据所述温度差值和/或所述差值变化信息确定水温修正值；
根据所述第一目标温度与所述水温修正值确定所述目标水温。
在一实施例中，所述根据所述温度差值和/或所述差值变化信息确定水温修正值的步骤之后，还包括：
在所述水温修正值小于所述预设水温修正阈值时，根据所述换热部件的当前水温、所述第一目标温度、所述水温修正值以及前次所述热泵机组供水的第二目标温度确定所述目标水温；
在所述水温修正值等于所述预设水温修正阈值时，维持所述第一目标温度为所述目标水温。
在一实施例中，所述根据所述换热部件的当前水温、所述第一目标温度、所述水温修正值以及前次所述热泵机组供水的第二目标温度确定所述目标水温的步骤包括：
确定所述当前水温、所述第一目标温度以及所述第二目标温度中的温度极小值；
根据所述温度极小值与所述水温修正值确定所述目标水温。
在一实施例中，获取所述温度差值与差值变化信息的步骤，包括：
间隔预设时间周期，获取目标区域的环境温度与设定温度；
根据所述环境温度与所述设定温度计算获得温度差值；
获取前次温度差值，并根据所述温度差值与所述前次温度差值确定差值变化信息。
在一实施例中，所述基于所述目标水温控制所述热泵机组运行，包括：
确定所述热泵机组当前运行模式下的理论目标水温区间；
根据所述理论目标水温区间修正所述目标水温；
基于修正后的目标水温调节控制所述热泵机组运行。
在一实施例中，所述基于所述目标水温控制所述热泵机组运行的步骤之后，还包括：
根据所述目标区域的环境温度与设定温度的当前温差值、所述环境温度与设定温度的差值变化信息和/或所述目标水温的调节次数确定目标时长；
间隔目标时长，返回执行所述获取所述换热部件调节的目标区域的目标温差参数的步骤。
在一实施例中，所述根据所述目标区域的环境温度与设定温度的当前温差值、所述环境温度与设定温度的差值变化信息和/或所述目标水温的调节次数确定目标时长包括：
当所述调节次数小于或等于预设调节次数时，根据所述当前温差值确定所述目标时长；
当所述调节次数大于所述预设调节次数时，根据所述差值变化信息与预设变化系数确定所述目标时长。
此外，为实现上述目的，本申请还提出一种水温控制设备，所述水温控制设备包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的水温控制程序，所述水温控制程序配置为实现如上文所述的水温控制方法的步骤。
此外，为实现上述目的，本申请还提出一种存储介质，所述存储介质上存储有水温控制程序，所述水温控制程序被处理器执行时实现如上文所述的水温控制方法的步骤。
本申请公开了一种水温控制方法，所述水温控制方法应用于环境调节系统，所述环境调节系统包含所述热泵机组、供水流路、回水流路以及至少一个换热部件，所述热泵机组与各换热部件之间通过所述供水流路与所述回水流路连接；所述水温控制方法包括：获取所述换热部件调节的目标区域的目标温差参数，所述目标温差参数表征所述室内环境的环境温度与设定温度之间的温差状态；根据所述目标温差参数确定所述供水流路的目标水温；基于所述目标水温控制所述热泵机组运行，与现有技术相比，本申请通过环境调节系统中热泵机组与各换热部件所在的目标区域的目标温差参数，并根据目 标温差参数确定供水水路的目标水温，进而根据目标水温控制热泵机组的运行，其中，目标温差参数用于表征所述室内环境的环境温度与设定温度之间的温差状态，以实际环境中的温度参数对热泵机组的运行状态进行控制，避免了现有技术中无法精细准确控制热泵机组的水温的技术问题，同时还提高了各区域温度控制的稳定性与精确度，耗能更低。
附图说明
图1是本申请实施例方案涉及的硬件运行环境的水温控制设备的结构示意图；
图2为本申请水温控制方法第一实施例的流程示意图；
图3为本申请水温控制方法一实施例的热泵机组结构框图；
图4为本申请水温控制方法一实施例的水温控制系统结构框图；
图5为本申请水温控制方法一实施例的控制逻辑示意图；
图6为本申请水温控制方法第二实施例的流程示意图。
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
应当理解，此处所描述的具体实施例仅用以解释本申请，并不用于限定本申请。
参照图1，图1为本申请实施例方案涉及的硬件运行环境的水温控制设备结构示意图。
如图1所示，该水温控制设备可以包括：处理器1001，例如中央处理器(Central Processing Unit，CPU)，通信总线1002、用户接口1003，网络接口1004，存储器1005。其中，通信总线1002用于实现这些组件之间的连接通信。用户接口1003可以包括显示屏(Display)、输入单元比如键盘(Keyboard)，可选用户接口1003还可以包括标准的有线接口、无线接口。网络接口1004可选的可以包括标准的有线接口、无线接口(如无线保真(Wireless-Fidelity，Wi-Fi)接口)。存储器1005可以是高速的随机存取存储 器(Random Access Memory，RAM)，也可以是稳定的非易失性存储器(Non-Volatile Memory，NVM)，例如磁盘存储器。存储器1005可选的还可以是独立于前述处理器1001的存储装置。
本领域技术人员可以理解，图1中示出的结构并不构成对水温控制设备的限定，可以包括比图示更多或更少的部件，或者组合某些部件，或者不同的部件布置。
如图1所示，作为一种存储介质的存储器1005中可以包括操作系统、网络通信模块、用户接口模块以及水温控制程序。
在图1所示的水温控制设备中，网络接口1004主要用于与网络服务器进行数据通信；用户接口1003主要用于与用户进行数据交互；本申请水温控制设备中的处理器1001、存储器1005可以设置在水温控制设备中，所述水温控制设备通过处理器1001调用存储器1005中存储的水温控制程序，并执行本申请实施例提供的水温控制方法。
本申请实施例提供了一种水温控制方法，参照图2，图2为本申请一种水温控制方法第一实施例的流程示意图。
所述水温控制方法包括以下步骤：
步骤S10：获取所述换热部件调节的目标区域的目标温差参数，所述目标温差参数表征所述室内环境的环境温度与设定温度之间的温差状态。
需要说明的是，本申请方法的执行主体可以是具有数据采集或者数据处理功能的设备，例如：热泵机组的控制设备，还可以是其他可以实现相同或者相似功能的设备，例如：外接的控制计算机或者电脑等，本申请对此不做具体限制，在本申请中，将会以热泵机组的控制设备为例进行说明。
热泵机组为热泵冷热水机组，在本申请中，以热泵机组进行说明，所述热泵机组包括：压缩机1、水侧换热器2、四通换向阀3、节流部件4、热源侧换热器5，其中，所述压缩机1用于控制热泵机组管道内部的冷媒温度，控制各换热器的温度，进而与外界进行热量交换，实现升温或者降温；所述水侧换热器2用于与外界水箱中的水体进行热量交换，以便于控制外界水温；所述四通换向阀3用于调整热泵机组中冷媒的流向，根据热泵机组的运行模式的不同，四通换向阀3的阀门位置与连通口不同；所述节流部件4用于控制热泵机组冷媒流动速度，以便于控制与外接热量交换的速度，节流部件4 的开度越大，热量交换越快，开度越小，热量交换越慢，还用于释放冷媒的压力，以便于冷媒的形态转换；所述热源侧换热器5用于在不同的模式中可以作为蒸发器或者冷凝器，本申请对此不作具体限制。
在一实施例中，参考图3，图3为本申请提出的热泵机组的结构框图，其中，压缩机1的输出端与四通换向阀3的第一连通口D连接，所述四通换向阀3的第二连通口C与所述水侧换热器2第一端连接，所述四通换向阀3的第三连通口S与所述压缩机1的第二端连接，所述四通换向阀3的第四连通口E与所述热源侧换热器5的第一端连接，所述水侧换热器2的第二连通口与所述节流部件4的第二端连接，所述热源侧换热器5的第二端与所述节流部件4的第一端连接。
在所述热泵机组以制热模式运行时，参考图3中实线冷媒流向，压缩机1运行将冷媒进行压缩，以获得高温高压的冷媒，高温高压的冷媒受到压力作用通过四通换向阀3传输至水侧换热器，此时水侧换热器2作为冷凝器，在与水侧换热器中2的水体进行热量交换后使得进水温度小于出水温度，从而提高外界水体温度，冷媒在经过水侧换热器2后以高压中温的状态流经节流部件4，再通过节流部件4获得低压中温的冷媒流经热源侧换热器5，此时热源侧换热器5作为蒸发器，获得低温低压的冷媒，并最后通过四通换向阀3流回压缩机1，完成制热过程，其中，在制热过程中，四通换向阀3的第一连通口D与第二连通口C导通，以实现将冷媒运输至水侧换热器2进行冷凝，四通换向阀3的第三连通口S与第四连通口E导通，用于将冷媒回收至压缩机1，便于下一次进行冷媒压缩。
在所述热泵机组以制冷模式运行时，参考图3中虚线冷媒流向，压缩机1运行通过将内部的冷媒压缩为高温高压的冷媒，通过四通换向阀3运输至热源侧换热器5，此时，热源侧换热器5作为冷凝器，使得冷媒凝结，获得中温高压的冷媒，再通过节流部件4降压，获得低压中温的冷媒，冷媒再流经水侧换热器2进行热量交换，此时水热换热器2作为蒸发器吸收水体的热量，进而实现水体制冷，最后四通换向阀3流回压缩机1，完成制冷过程，其中，在制冷过程中，四通换向阀3的第一连通口D与第四连通口E导通，以实现将冷媒运输至热源侧换热器5进行冷凝，四通换向阀3的第二连通口C与第三连通口S导通，用于将冷媒回收至压缩机1，便于下一次进行冷媒压缩。
可以理解的是，在传统技术中，以制冷模式为例，热泵机组会持续运行制冷，使得水侧换热器的水温降低到某一温度，当水侧换热器内的水温降低到用户设置的温度后，热泵机组将会停机，避免继续降低温度，偏离用户的使用需求，此时，水侧换热器区域的水体通过管道流经各个房间与外界发生热交换，再流回水箱时，会导致水侧换热器处的水温上升，热泵机组在检测到水侧换热器处的水温升高后，会重新启动。
值得说明的是，热泵机组设置于环境调节系统，该环境调节系统包含有热泵机组、供水流路、回水流路以及至少一个换热部件，所述热泵机组与各换热部件之间通过所述供水流路与所述回水流路连接，且换热部件与安装的区域对应，即同一区域内安装的换热部件可视为同一换热部件，所述热泵机组包括：各种类型的热泵冷热水机组，例如空气源热泵机组、风冷热泵机组、地源热泵机组等，本申请对此不做具体限制。
其中，以热泵冷热水机组连通的房间为例进行说明，各房间内的换热部件可以是地暖盘管、辐射板、风盘或者散热片等设备，还可以是其他可以实现与热泵冷热水机组进行热交换的设备，本申请对此不做具体限制。
在具体实施中，热泵机组通过水侧换热器控制出水侧水体的温度，并通过供水流路将出水侧水体输出至各个房间进行热量交换，在通过与各房间连接的回水流路流回热泵机组，以便于下次进行热量交换。
应当理解的是，换热部件对应安装与一目标区域，也可以在同一目标区域中安装有多个换热部件，目标区域可以是需要进行水温控制的区域，根据热泵机组连通的区域不同，可以进行不同的选择，以与热泵机组连通的多个房间为例进行说明，参考图4，图4为本申请水温控制系统的结构框图。
可以理解的是，目标温差参数表征所述室内环境的环境温度与设定温度之间的温差状态，其中温差状态包括：温度差值和/或差值变化信息，温度差值是指房间空气温度与房间中用户设定温度之间的差值，差值变化信息是指温度差值与前一次温度修正时的温度差值之间的变化值，变化值可以为差值。
此外，若是热泵机组同时供应冷热水至多个房间，以控制多个房间的温度，由于供水流路管道与回水流路管道中的水体温度都是一样的，为了适应不同房间设定温度的需求，针对热泵机组中水侧换热器的出水温度的设置可以是根据各房间的用户设定温度与热泵机组的运行模式确定，其中，在热泵 机组以制热模式运行时，热泵机组中水侧换热器的出水温度的最大值可以取各房间设定温度中的最大值；而在热泵机组以制冷模式运行时，热泵机组中水侧换热器的出水温度的最小值可以取各房间设定温度中的最小值。
进一步地，为了获取目标区域的温度差值与差值变化信息，获取目标区域的温度差值与差值变化信息的步骤，具体可为：间隔预设时间周期，获取目标区域的环境温度与设定温度，根据所述环境温度与所述设定温度计算获得温度差值，获取前次温度差值，并根据所述温度差值与所述前次温度差值确定差值变化信息。
其中，若是存在多次的水温调整，预设时间周期可以根据前一次的温度差值确定，若是第一次水温调整，则预设时间周期可以是120s，本申请对此不做具体限制。
此外，预设时间周期的确定可以根据温度差值-周期关联表确定，温度差值-周期关联表可以参考表1。
表1
E_TA E_TA＜x x≤E_TA＜y E_TA≥y
TWM(秒) S1 S2 S3
其中，E_TA是指房间空气温度与设定温度之间的差值，x、y、S1、S2、S3根据实验取值，可选x＝1，y＝3，S1＝120，S2＝90，S3＝60，制冷和制热可分别取不同值，本申请对此不做具体限制。
步骤S20：根据所述目标温差参数确定所述供水流路的目标水温。
需要说明的是，目标温差参数包括所述环境温度与设定温度的温度差值和所述环境温度与设定温度的差值变化信息，即根据目标温差参数确定供水流路的目标水温时，可以是根据温度差值和/或差值变化信息确定所述目标水温。
进一步地，为了在确定供水流路的目标水温时，为了实现精准的水温控制，所述根据所述温度差值和/或所述差值变化信息确定所述目标水温的步骤包括：
获取所述热泵机组供水当前的第一目标温度；
根据所述温度差值和/或所述差值变化信息确定水温修正值；
根据所述第一目标温度与所述水温修正值确定所述目标水温。
应当理解的是，第一目标温度是指热泵机组运行模式下的对应的总供水 总目标温度，例如：在同时对多个房间内的换热部件进行热水供应时，针对制热模式下的第一目标温度可以是各个房间设定的目标温度之间的最大值，作为热泵机组制热模式下的第一目标温度；同时，在同时对多个房间内的换热部件进行冷水供应时，针对制冷模式下的第一目标温度可以是各个房间设定的目标温度之间的最小值，作为热泵机组制热模式下的第一目标温度。
水温修正值用于根据室内环境的环境温度与设定温度之间的温差状态对热泵机组进行水温控制的参考修正水温，为了更精准的对热泵机组运行水温进行控制，本申请可以通过分别确定温度差值与差值变化信息所处的目标区间，再通过温度差值与差值变化信息各自对应的目标区间查询到准确的水温修正值。
目标区间是指通过水温修正值与温度差值/差值变化信息对应的关联表确定的数值区间，在通过所述关联表查询得到目标区间对应的水温修正值。
在一实施例中，关联表如表2所示：
Figure PCTCN2022134413-appb-000001
其中，ΔTWsb_n为目标水温调节量，△E_TAh_n为房间n实际空气温度变化值，E_TA_n为房间n实际空气温度与设定温度差值。
值得说明的是，根据水温修正值确定各目标区域的设定温度，根据水温修正值的大小具有不同的目标水温设定策略，例如：在水温修正值大于0时，表示需要提高房间的目标水温，此时可以将水温修正值与热泵机组的总供水目标水温相加，并将相加后的结果作为该房间设定水温，以实现提高目标房间的设定水温的目的。
进一步地，所述根据所述温度差值和/或所述差值变化信息确定水温修正值的步骤之后，还包括：
在所述水温修正值大于预设水温修正阈值时，执行所述根据所述第一目标温度与所述水温修正值确定所述目标水温的步骤；
在所述水温修正值小于所述预设水温修正阈值时，根据所述换热部件的当前水温、所述第一目标温度、所述水温修正值以及前次所述热泵机组供水的第二目标温度确定所述目标水温；
在所述水温修正值等于所述预设水温修正阈值时，维持所述第一目标温度为所述目标水温。
可以理解的是，前次所述热泵机组供水的第二目标温度是指上一次对热泵机组进行水温控制时，得到的目标供水水温。
在一实施例中，通过将水温修正值与预设水温修正阈值进行对比，根据水温修正值与预设水温修正阈值的大小关系，可以确定对于目标区域的水温调节策略，其中，预设水温修正阈值可以取0，以判断是需要根据水温修正值提高水温，亦或者时降低水温。
在一实施例中，在水温修正值大于0时，表示需要提高房间的目标水温，此时可以将水温修正值与热泵机组的总供水目标水温相加，并将相加后的结果作为该房间设定水温；在水温修正值等于0时，表示此时房间的水温正合适，不需要进行升高或者降低，可以维持房间的设定水温，以保持当前状态不变。
此外，在水温修正值小于0时，表示需要降低房间的目标水温，为了降低水温时，不会影响用户的正常使用，在降低水温时，还可以参考目标房间的实际水温、当前设定温度以及上一次水温控制得到的设定水温，进行综合比较，以选取一个影响较小的水温调节方案，例如：当水温修正值ΔTWsb<0时，目标水温TWsb＝ΔTWsb+min(TWsr,TWso,TWsb(n-1))，其中，TWsr为实际水温，TWso为当前目标水温，TWsb(n-1)为上一次控制算法得出的目标水温，通过选取当前水温、当前目标水温以及前次目标水温中的水温极小值，并结合水温修正值实现目标水温的设定，使得调节水温时对用户的影响较小。
最后，在水温修正值等与0时，表示此时目标区域的温度处于最佳状态，可以通过维持总供水目标水温为所述目标水温，保证用户的使用体验。
步骤S30：基于所述目标水温控制所述热泵机组运行。
可以理解的是，在确定好各房间的目标水温之后，按控制模块预设的目标水温调整速度ξTWS调至目标水温，其中，在当前运行模式下的总供水水温也可能发生变化，此时可以通过调节热泵机组中压缩机的运行频率，以实 现调节水温换热器出水测的水温，达到调节总供水水温的目的。
在一实施例中，参考图5，图5为本申请的控制逻辑框图，其中，T1_Rn为房间n空气温度，T1s_Rn为房间n设定温度，TWsb为目标水温，TWsb(n-1)为上一次控制算法得出的水温TWso为当前目标水温，TWsr为当前实际水温，E_TA_n为房间n实际空气温度与设定温度差值，△E_TAh_n为房间n实际空气温度变化值ΔE_TA_n为房间n实际空气温度与设定温度差值变化值，TWsb_n为房间n目标水温，TWM为调节周期，ΔTWsb为目标水温调节量，ξTWS为目标水温调整速度。
进一步地，所述基于所述目标水温控制所述热泵机组运行，包括：
确定所述热泵机组当前运行模式下的理论目标水温区间；
根据所述理论目标水温区间修正所述目标水温；
基于修正后的目标水温调节控制所述热泵机组运行。
需要说明的是，理论目标水温区间是指压缩机在该运行模式下的水温取值区间，例如：水温不可能高于100摄氏度，也不会低于0摄氏度，热泵机组在不同的运行模式下存在不同的理论运行频率区间。
在实际实施中，不会将水温逼近水温极值，一般根据热泵机组不同的运行模式，可以设定不同的理论水温区间。
在一实施例中，若是热泵机组以制冷模式运行，调节后的目标水温如果不在制冷模式下的理论目标水温区间内，可以根据调节后的目标水温与制冷模式下的理论目标水温区间的区间关系，对调节后的目标水温进行调整，例如：制冷模式下的理论目标水温区间为TWminC-TWmaxC，若是调节后的目标水温小于TWminC，则将调节后的目标水温修正为TWminC；若是调节后的目标水温大于TWmaxC，则将调节后的目标水温修正为TWmaxC。
同理，在一实施例中，若是热泵机组以制热模式运行，调节后的目标水温如果不在制热模式下的理论目标水温区间内，可以根据调节后的目标水温与制热模式下的理论目标水温区间的区间关系，对调节后的目标水温进行调整，例如：制热模式下的理论目标水温区间为TWminH-TWmaxH，若是调节后的目标水温小于TWminH，则将调节后的目标水温修正为TWminH；若是调节后的目标水温大于TWmaxH，则将调节后的目标水温修正为TWmaxH。
本申请通过环境调节系统中热泵机组与各换热部件所在的目标区域的目 标温差参数，并根据目标温差参数确定供水水路的目标水温，进而根据目标水温控制热泵机组的运行，其中，目标温差参数用于表征所述室内环境的环境温度与设定温度之间的温差状态，以实际环境中的温度参数对热泵机组的运行状态进行控制，避免了现有技术中无法精细准确控制热泵机组的水温的技术问题，同时还提高了各区域温度控制的稳定性与精确度，耗能更低。
参考图6，图6为本申请一种水温控制方法第二实施例的流程示意图。
基于上述第一实施例，所述水温控制方法还包括：
步骤S50：根据所述目标区域的环境温度与设定温度的当前温差值、所述环境温度与设定温度的差值变化信息和/或所述目标水温的调节次数确定目标时长。
需要说明的是，热泵机组再给各房间供暖或者降温时，由于热泵机组运行功率、运行时长以及监测间隔的原因，房间内的温度不会一直维持在一个稳定的状态，例如：若是此时温度较高，热泵系统调节水温，以降低房间的温度，经过一段时间后，房间的温度可能会降低至不满足用户需求的状态，又需要重新进行水温调整，因此，只要是每一次有效调整水温的过程都可以更新水温调节次数，而目标时长是指获取室内环境的环境温度与设定温度之间的温差状态的是时间间隔。
可以理解的是，若是热泵机组多次调整热泵机组的供水温度，表示此时温差变化较大，需要缩短监测室内温差的时间间隔，提高监测频率，预设调节次数用于确定是否需要缩短相邻获取温度信息的时间间隔，预设调节次数可以为由用户自行设置，例如：4或者5等，本申请对此不做具体限制。
应当说明的是，调整目标水温时，若是水温调节的幅度不大，说明房间内的温度属于正常逸散，热泵机组运行正常，可以不调整预设时间周期，维持在当前预设时间周期即可，但是若是每次调整水温的幅度大于设定的温度差值阈值时，说明房间内的温度逸散过程不正常，需要缩短温度获取周期，以便于对室内温度进行更精细的控制，提高用户体验。
在一实施例中，预设时间周期的确定可以根据温度差值-周期关联表确定，温度差值-周期关联表可以参考表3。
表3
E_TA E_TA＜x x≤E_TA＜y E_TA≥y
TWM(秒) S1 S2 S3
其中，E_TA是指房间空气温度与设定温度之间的差值，x、y、S1、S2、S3根据实验取值，可选x＝1，y＝3，S1＝120，S2＝90，S3＝60，制冷和制热可分别取不同值，本申请对此不做具体限制。
步骤S60：间隔目标时长，返回执行所述获取所述换热部件调节的目标区域的目标温差参数的步骤。
在一实施例中，第一次获取室内环境的环境温度与设定温度之间的温差状态，并进行有效的热泵机组水温控制120s之后，第二次获取室内环境的环境温度与设定温度之间的温差状态，并进行有效的热泵机组水温控制，90s之后，第三次获取室内环境的环境温度与设定温度之间的温差状态，并进行有效的热泵机组水温控制，直至第4个TWM周期开始，根据差值变化信息与预设变化系数确定所述目标时长，即当∣△E_TW∣≥1时，TWM按系数d减小，d的取值范围为0～1，例如：0.5，△E_TW是指差值变化信息，即所述环境温度与设定温度的当前温度差值与前次温度修正时的温度差值的变化值，变化值可以为差值，本申请对此不做具体限制。
本申请通过温度调节次数与调节后的温度差值确定是否需要缩短调整周期，以提供更精细的温度控制，提高用户使用体验。
此外，本申请实施例还提出一种存储介质，所述存储介质上存储有水温控制程序，所述水温控制程序被处理器执行时实现如上文所述的水温控制方法的步骤。
由于本存储介质采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。
应当理解的是，以上仅为举例说明，对本申请的技术方案并不构成任何限定，在具体应用中，本领域的技术人员可以根据需要进行设置，本申请对此不做限制。
需要说明的是，以上所描述的工作流程仅仅是示意性的，并不对本申请的保护范围构成限定，在实际应用中，本领域的技术人员可以根据实际的需 要选择其中的部分或者全部来实现本申请方案的目的，此处不做限制。
另外，未在本申请中详尽描述的技术细节，可参见本申请任意实施例所提供的水温控制方法，此处不再赘述。
此外，需要说明的是，在本文中，术语“包括”、“包含”或者其任何其他变体意在涵盖非排他性的包含，从而使得包括一系列要素的过程、方法、物品或者系统不仅包括那些要素，而且还包括没有明确列出的其他要素，或者是还包括为这种过程、方法、物品或者系统所固有的要素。在没有更多限制的情况下，由语句“包括一个……”限定的要素，并不排除在包括该要素的过程、方法、物品或者系统中还存在另外的相同要素。
上述本申请实施例序号仅仅为了描述，不代表实施例的优劣。
通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到上述实施例方法可借助软件加必需的通用硬件平台的方式来实现，当然也可以通过硬件，但很多情况下前者是更佳的实施方式。基于这样的理解，本申请的技术方案本质上或者说对现有技术做出贡献的部分可以以软件产品的形式体现出来，该计算机软件产品存储在一个存储介质(如只读存储器(Read Only Memory，ROM)/RAM、磁碟、光盘)中，包括若干指令用以使得一台终端设备(可以是手机，计算机，服务器，或者网络设备等)执行本申请各个实施例所述的方法。
以上仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是利用本申请说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本申请的专利保护范围内。

Claims (11)

  1. 一种水温控制方法，其中，所述水温控制方法应用于环境调节系统，所述环境调节系统包含热泵机组、供水流路、回水流路以及至少一个换热部件，所述热泵机组与各换热部件之间通过所述供水流路与所述回水流路连接；所述水温控制方法包括：
    获取所述换热部件调节的目标区域的目标温差参数，所述目标温差参数表征所述室内环境的环境温度与设定温度之间的温差状态；
    根据所述目标温差参数确定所述供水流路的目标水温；
    基于所述目标水温控制所述热泵机组运行。
  2. 如权利要求1所述的水温控制方法，其中，所述目标温差参数包括所述环境温度与设定温度的温度差值和/或所述环境温度与设定温度的差值变化信息，所述根据所述目标温差参数确定所述目标水温的步骤包括：
    根据所述温度差值和/或所述差值变化信息确定所述目标水温。
  3. 如权利要求2所述的水温控制方法，其中，所述根据所述温度差值和/或所述差值变化信息确定所述目标水温的步骤包括：
    获取所述热泵机组供水当前的第一目标温度；
    根据所述温度差值和/或所述差值变化信息确定水温修正值；
    根据所述第一目标温度与所述水温修正值确定所述目标水温。
  4. 如权利要求3所述的水温控制方法，其中，所述根据所述温度差值和/或所述差值变化信息确定水温修正值的步骤之后，还包括：
    在所述水温修正值大于预设水温修正阈值时，执行所述根据所述第一目标温度与所述水温修正值确定所述目标水温的步骤；
    在所述水温修正值小于所述预设水温修正阈值时，根据所述换热部件的当前水温、所述第一目标温度、所述水温修正值以及前次所述热泵机组供水的第二目标温度确定所述目标水温；
    在所述水温修正值等于所述预设水温修正阈值时，维持所述第一目标温 度为所述目标水温。
  5. 如权利要求4所述的水温控制方法，其中，所述根据所述换热部件的当前水温、所述第一目标温度、所述水温修正值以及前次所述热泵机组供水的第二目标温度确定所述目标水温的步骤包括：
    确定所述当前水温、所述第一目标温度以及所述第二目标温度中的温度极小值；
    根据所述温度极小值与所述水温修正值确定所述目标水温。
  6. 如权利要求2所述的水温控制方法，其中，获取所述温度差值与差值变化信息的步骤，包括：
    间隔预设时间周期，获取目标区域的环境温度与设定温度；
    根据所述环境温度与所述设定温度计算获得温度差值；
    获取前次温度差值，并根据所述温度差值与所述前次温度差值确定差值变化信息。
  7. 如权利要求1所述的水温控制方法，其中，所述基于所述目标水温控制所述热泵机组运行，包括：
    确定所述热泵机组当前运行模式下的理论目标水温区间；
    根据所述理论目标水温区间修正所述目标水温；
    基于修正后的目标水温调节控制所述热泵机组运行。
  8. 如权利要求1-7中任一项所述的水温控制方法，其中，所述基于所述目标水温控制所述热泵机组运行的步骤之后，还包括：
    根据所述目标区域的环境温度与设定温度的当前温差值、所述环境温度与设定温度的差值变化信息和/或所述目标水温的调节次数确定目标时长；
    间隔目标时长，返回执行所述获取所述换热部件调节的目标区域的目标温差参数的步骤。
  9. 如权利要求8所述的水温控制方法，其中，所述根据所述目标区域的 环境温度与设定温度的当前温差值、所述环境温度与设定温度的差值变化信息和/或所述目标水温的调节次数确定目标时长包括：
    当所述调节次数小于或等于预设调节次数时，根据所述当前温差值确定所述目标时长；
    当所述调节次数大于所述预设调节次数时，根据所述差值变化信息与预设变化系数确定所述目标时长。
  10. 一种水温控制设备，其中，所述水温控制设备包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的水温控制程序，所述水温控制程序配置为实现如权利要求1至9中任一项所述的水温控制方法。
  11. 一种存储介质，其中，所述存储介质上存储有水温控制程序，所述水温控制程序被处理器执行时实现如权利要求1至9任一项所述的水温控制方法。
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