WO2024109191A1 - Dew removal control method and apparatus, radiant air-conditioning system, and storage medium - Google Patents

Dew removal control method and apparatus, radiant air-conditioning system, and storage medium Download PDF

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Publication number
WO2024109191A1
WO2024109191A1 PCT/CN2023/113576 CN2023113576W WO2024109191A1 WO 2024109191 A1 WO2024109191 A1 WO 2024109191A1 CN 2023113576 W CN2023113576 W CN 2023113576W WO 2024109191 A1 WO2024109191 A1 WO 2024109191A1
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WO
WIPO (PCT)
Prior art keywords
temperature
heat exchange
exchange component
terminal heat
pump system
Prior art date
Application number
PCT/CN2023/113576
Other languages
French (fr)
Chinese (zh)
Inventor
钟名亮
徐振坤
黄剑云
李金波
黄招彬
高卓贤
Original Assignee
广东美的制冷设备有限公司
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Application filed by 广东美的制冷设备有限公司 filed Critical 广东美的制冷设备有限公司
Publication of WO2024109191A1 publication Critical patent/WO2024109191A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0083—Indoor units, e.g. fan coil units with dehumidification means
    • 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
    • F24F11/41—Defrosting; Preventing freezing
    • F24F11/43—Defrosting; Preventing freezing of indoor units
    • 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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • 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
    • F24F2110/00—Control inputs relating to air properties
    • F24F2110/50—Air quality properties
    • F24F2110/64—Airborne particle content
    • 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
    • F24F2110/50—Air quality properties
    • F24F2110/65—Concentration of specific substances or contaminants
    • 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

Definitions

  • the present application relates to the technical field of air conditioners, and in particular to a dew removal control method, device, radiation air conditioning system and storage medium.
  • some air conditioners are equipped with hot and cold water units and terminal heat exchange components.
  • the hot and cold water units transport water carrying cold or hot water to the terminal heat exchange components, and the terminal heat exchange components use the energy in the water to adjust the indoor environment.
  • the target water outlet temperature of the hot and cold water units is generally set higher, and the set value is fixed to prevent condensation from occurring on the surface of the terminal heat exchange component.
  • this method may result in poor cooling effect and fail to reduce the room ambient temperature to the user set value. It can be seen that the current anti-condensation control has the problem of affecting indoor comfort.
  • the main purpose of the present application is to provide a dew removal control method, device, radiant air conditioning system and storage medium, aiming to reduce the risk of condensation while improving indoor comfort.
  • the present application provides a dew removal control method, which is applied to a radiant air conditioning system, wherein the radiant air conditioning system includes a heat pump system, a terminal heat exchange component, and a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component, and the dew removal control method includes:
  • the heat pump system is controlled to switch to a heating mode.
  • the temperature parameter characterizing the surface temperature of the terminal heat exchange component includes the refrigerant temperature of the radiation air conditioning system and/or the radiation surface temperature of the terminal heat exchange component.
  • the step of determining whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the temperature parameter and the dew point temperature includes:
  • the step of determining whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the first temperature difference and/or the second temperature difference includes:
  • first temperature difference When the first temperature difference is less than or equal to a first preset value, or when the first temperature difference is less than or equal to the first preset value and lasts for a first preset time, it is determined that there is a risk of condensation on the radiation surface of the terminal heat exchange component; and/or, when the second temperature difference is less than or equal to a second preset value, or when the second temperature difference is less than or equal to the second preset value and lasts for a second preset time, it is determined that there is a risk of condensation on the radiation surface of the terminal heat exchange component.
  • the method when there is a risk of condensation on the radiation surface of the terminal heat exchange component, after the step of controlling the heat pump system to switch to the heating mode, the method further includes:
  • the preset condition includes at least one of the following:
  • the target temperature difference value is greater than a third preset value, or the target temperature difference value is greater than the third preset value and lasts for a third preset time, and the target temperature difference value is the temperature difference between the current temperature parameter characterizing the surface temperature of the terminal heat exchange component and the current dew point temperature of the space where the terminal heat exchange component is located;
  • the accumulated operation time of the heating mode is greater than or equal to a fourth preset time
  • the temperature difference between the ambient temperature of the space where the terminal heat exchange component is located and the set temperature is greater than or equal to a fourth preset value.
  • the current temperature parameter characterizing the surface temperature of the terminal heat exchange component includes the refrigerant temperature of the radiant air conditioning system and/or the radiant surface temperature of the terminal heat exchange component.
  • the first target temperature is defined as the target temperature of the refrigerant of the heat pump system in the cooling mode
  • the step of controlling the heat pump system to switch to the heating mode includes:
  • the first target temperature is defined as the target temperature of the refrigerant of the heat pump system in the cooling mode.
  • the step of controlling the heat pump system to switch to the cooling mode includes:
  • the heat pump system is controlled to switch to the cooling mode, and the heat pump system is controlled to operate according to the first target temperature.
  • the radiation air conditioning system includes a plurality of terminal heat exchange components and a manifold, the manifold includes a plurality of water diversion valves, each of the terminal heat exchange components is connected to a corresponding water diversion valve, and the water diversion valve is used to open or close the coolant inflow channel of the corresponding terminal heat exchange component;
  • the method further includes:
  • the target water diversion valve connected to the target terminal heat exchange component is opened, and other water diversion valves except the target water diversion valve are closed.
  • the step further includes:
  • the method further includes:
  • the operation of multiple water diversion valves is controlled according to the target state of the water diversion valves.
  • the present application also proposes a dew removal control device, which is applied to a radiant air conditioning system, wherein the radiant air conditioning system includes a heat pump system, a terminal heat exchange component, and a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component, and the dew removal control device includes:
  • an acquisition module used for acquiring, when the heat pump system is in a cooling mode, a temperature parameter characterizing a surface temperature of the terminal heat exchange component and a dew point temperature of a space where the terminal heat exchange component is located;
  • a determination module configured to determine whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the temperature parameter and the dew point temperature;
  • the control module is used to control the heat pump system to switch to a heating mode when there is a risk of condensation on the radiation surface of the terminal heat exchange component.
  • the present application also proposes a radiant air conditioning system, the radiant air conditioning system comprising:
  • the control device includes a memory, a processor, and a dew removal control program stored in the memory and executable on the processor, wherein the dew removal control program is configured to implement the dew removal control method as described above.
  • the present application also proposes a storage medium, on which a dew removal control program is stored, and when the dew removal control program is executed by a processor, the dew removal control method as described above is implemented.
  • the heat pump system when the heat pump system is in cooling mode, whether there is a condensation risk is determined based on the temperature parameters characterizing the surface temperature of the terminal heat exchange component and the dew point temperature of the space where the terminal heat exchange component is located.
  • the heat pump system switches to heating mode to increase the radiation surface temperature and dry the condensation water on the radiation surface to avoid condensation accumulation that causes the radiation surface to become moldy or even the surface decorative layer to fall off, thereby greatly improving the reliability of the radiation air conditioning water system and improving the user experience.
  • FIG1 is a schematic diagram of the hardware structure involved in the operation of an embodiment of the radiation air conditioning system of the present application
  • FIG2 is a schematic diagram of a heat pump system of the dew removal control method of the present application.
  • FIG3 is a flow chart of an embodiment of a dew removal control method of the present application.
  • FIG4 is a schematic diagram of a radiant air conditioning water system of the dew removal control method of the present application.
  • FIG5 is a schematic diagram of a radiant air conditioning water system of the dew removal control method of the present application.
  • FIG6 is a flow chart of an embodiment of a dew removal control method of the present application.
  • FIG7 is a schematic diagram of a dew removal control process of the dew removal control method of the present application.
  • FIG8 is a flow chart of an embodiment of a dew removal control method of the present application.
  • FIG. 9 is a structural block diagram of an embodiment of a dew removal control device of the present application.
  • the embodiment of the present application provides a radiant air conditioning system, which is specifically used to adjust the temperature of an indoor environment.
  • the radiant air conditioning system includes a heat pump system b, a terminal heat exchange component c, a refrigerant circulation system connected to the heat pump system b and the terminal heat exchange component c, and a control device a, wherein the heat pump system b and the terminal heat exchange component c are both connected to the control device a.
  • the terminal heat exchange component c is used to adjust the environmental parameters (such as ambient temperature and/or ambient humidity, etc.) of the indoor space through the energy output by the heat pump system b.
  • the heat pump system b is used to provide energy (such as cooling or heating) for the heat exchange between the terminal heat exchange component c and the indoor space.
  • the terminal heat exchange component c is disposed in the refrigerant circulation system, the heat pump system b is used to adjust the refrigerant temperature of the refrigerant circulation system, and the terminal heat exchange component c is used to adjust the indoor temperature.
  • the refrigerant temperature of the radiant air conditioning system can be the outlet water temperature of the heat pump system b, or the inlet water temperature of the terminal heat exchange component c.
  • the terminal heat exchange component c can also be a system that uses other media to transmit energy, such as ethanol solution.
  • control device a can also be connected to the environment detection module d, and the environment detection module d may include an indoor temperature sensor and an outdoor temperature sensor.
  • the indoor temperature sensor can detect the ambient temperature of the indoor space regulated by the radiation air-conditioning system; the outdoor temperature sensor can detect the ambient temperature of the outdoor space where the radiation air-conditioning system is located.
  • the control device a may also be connected to a temperature detection module e, which may be provided in the coolant circulation system to detect the coolant temperature.
  • the temperature detection module e may be provided at one side of the heat exchange channel outlet to detect the coolant temperature flowing out of the heat exchange channel; the temperature detection module e may also be provided at one side of the heat exchange channel inlet to detect the coolant temperature flowing into the heat exchange channel; the temperature detection module e may also be provided at the inlet or outlet of the terminal heat exchange component c to detect the coolant temperature flowing into or out of the terminal heat exchange component c.
  • a control device a of a radiant air conditioning system includes: a processor 1001 (e.g., a CPU), a memory 1002, a timer 1003, etc.
  • the components in the control device a are connected via a communication bus.
  • the memory 1002 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory.
  • the memory 1002 may also be a storage device independent of the aforementioned processor 1001 .
  • FIG. 1 does not constitute a limitation on the device, and may include more or fewer components than shown, or a combination of certain components, or a different arrangement of components.
  • the memory 1002 as a storage medium may include a dew removal control program.
  • the processor 1001 may be used to call the dew removal control program stored in the memory 1002 and execute the relevant steps of the dew removal control method in the following embodiments.
  • the heat pump system b includes a refrigerant circulation loop and a heat exchange channel
  • the refrigerant circulation loop includes a compressor 1, a water-side heat exchanger 2, a four-way reversing valve 3, a throttling component 4, a heat source-side heat exchanger 5, etc.
  • the water-side heat exchanger 2 is heat-exchange connected to the heat exchange channel.
  • the heat pump system b can have two operating modes: a cooling mode and a heating mode.
  • the water-side heat exchanger 2 When the heat pump system b operates in the cooling mode, the water-side heat exchanger 2 is in an evaporating state to absorb heat, and when the heat pump system b operates in the heating mode, the water-side heat exchanger 2 is in a condensing state to release heat.
  • the refrigerant circulation system includes a medium circulation loop and a terminal heat exchange component c arranged in the medium circulation loop.
  • the terminal heat exchange component c may include a fan coil, a floor heating coil, a radiation panel, an air disk or a heat sink, etc.
  • the cold or heat of the refrigerant (such as water, ethylene glycol, etc.) in the medium circulation loop can be released to the indoor space where it is located at the terminal heat exchange component c.
  • the heat exchange type of the terminal heat exchange component c in different indoor spaces may be the same or different. Based on this, the cold or heat carried by the refrigerant (such as water, ethylene glycol, etc.) in the medium circulation loop can be used to adjust the ambient temperature of more than one indoor space.
  • the medium circulation loop has an inlet and an outlet.
  • the inlet of the medium circulation loop is communicated with the outlet of the heat exchange channel, and the outlet of the medium circulation loop is communicated with the inlet of the heat exchange channel.
  • the refrigerant in the heat exchange channel of the heat pump system b can absorb the cold or heat released by the water-side heat exchanger 2 to form a refrigerant carrying cold or heat.
  • the refrigerant carrying cold or heat flowing out of the heat exchange channel can enter the medium circulation loop and flow to the terminal heat exchange component c to release the cold or heat to the air in the indoor space to adjust the ambient temperature of the indoor space.
  • the refrigerant after releasing the cold or heat can re-enter the heat exchange channel to exchange heat with the water-side heat exchanger 2.
  • the refrigerant after heat exchange can re-enter the medium circulation loop to exchange heat, and so on, so as to achieve the regulation of the indoor space temperature by the radiation air conditioning system.
  • 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 water-side heat exchanger 2 When the heat pump system b is in cooling operation, the water-side heat exchanger 2 is in an evaporating state.
  • the medium in the heat exchange channel absorbs the cold output by the water-side heat exchanger 2 and its temperature drops to form a refrigerant carrying cold.
  • the refrigerant carrying cold enters the medium circulation loop and flows to the terminal heat exchange component c, releasing cold to the indoor space, and the ambient temperature of the indoor space drops.
  • 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.
  • 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 cooling.
  • 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 water-side heat exchanger 2 When the heat pump system b is in heating operation, the water-side heat exchanger 2 is in a condensing state.
  • the medium in the heat exchange channel absorbs the heat output by the water-side heat exchanger 2 and its temperature rises to form a refrigerant carrying heat.
  • the refrigerant carrying heat enters the medium circulation loop and flows to the terminal heat exchange component c, releasing heat to the indoor space, and the ambient temperature of the indoor space rises.
  • the compressor 1 runs to compress the refrigerant to obtain high-temperature and high-pressure refrigerant.
  • 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. After passing through the water-side heat exchanger 2, the refrigerant flows through the throttling component 4 in a high-pressure medium-temperature state, and then obtains a low-pressure medium-temperature refrigerant through the throttling component 4.
  • the refrigerant flows through the heat source side heat exchanger 5, at this time, 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, so as to facilitate the next refrigerant compression.
  • FIG. 3 is a flow chart of an embodiment of the dew removal control method of the present application.
  • the dew removal control method is applied to a radiant air conditioning system, the radiant air conditioning system comprising a heat pump system, a terminal heat exchange component, and a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component, and the dew removal control method comprises the following steps:
  • Step S10 when the heat pump system is in cooling mode, obtaining a temperature parameter characterizing the surface temperature of the terminal heat exchange component and a dew point temperature of a space where the terminal heat exchange component is located.
  • the radiation air-conditioning system of the present application includes one or more terminal heat exchange components.
  • the present application takes the radiation air-conditioning system as a radiation air-conditioning water system as an example for explanation, referring to Figure 4, Figure 4 is the first schematic diagram of the radiation air-conditioning water system of the dew removal control method of the present application.
  • the radiation air-conditioning water system mainly includes two parts: a heat pump system and a terminal heat exchange component, and also includes a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component.
  • the terminal heat exchange component is arranged in the room, including radiation plates, capillary networks and other radiation heat exchange forms.
  • the heat pump system produces cold water or hot water and transports it to the terminal heat exchange component in the room through the refrigerant circulation system for cooling or heating the room.
  • FIG. 5 is a schematic diagram of a radiation air conditioning water system of the dew removal control method of the present application;
  • the radiation air conditioning water system mainly includes a heat pump system, a terminal heat exchange component and a manifold, and also includes a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component.
  • the heat pump system produces cold water or hot water and transports it to the manifold through the refrigerant circulation system.
  • the manifold switching valve controls the cold water or hot water to flow to the terminal heat exchange component corresponding to the open valve, which is used to cool or heat the room.
  • the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the radiation surface temperature, and a radiation surface temperature sensor is provided in the room.
  • the control device can receive the radiation surface temperature in the room through the radiation surface temperature sensor, wherein, if multiple radiation surface temperature sensors are provided in the same room, the temperature data collected by the multiple radiation surface temperature sensors are obtained.
  • the surface temperature of the terminal heat exchange component is related to the temperature of the medium flowing into the terminal heat exchange component.
  • the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the refrigerant temperature of the radiation air conditioning system, and the refrigerant temperature can be the outlet water temperature of the heat pump system, and can also be the inlet water temperature of the terminal heat exchange component.
  • a temperature sensor is provided at the water supply port of the heat pump system, and the temperature signal collected by the temperature sensor is obtained, and the temperature signal is analyzed to obtain the refrigerant temperature; in another implementation, a temperature sensor is provided at the water inlet of the terminal heat exchange component, and the temperature signal collected by the temperature sensor is analyzed to obtain the refrigerant temperature.
  • the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the refrigerant temperature and the radiation surface temperature of the radiation air conditioning system.
  • the first connecting port D and the fourth connecting port E of the four-way reversing valve 3 in the heat pump system are connected, and the second connecting port C and the third connecting port S are connected, and the heat pump system produces a refrigerant carrying cold, which enters the medium circulation loop and flows to the terminal heat exchange component.
  • the space where the terminal heat exchange component is located refers to the room or indoor area where the terminal heat exchange component is deployed.
  • a dew point temperature sensor is provided in the room where the terminal heat exchange component is located, and the dew point temperature in the room is obtained by the dew point temperature sensor. If multiple dew point temperature sensors are provided in the same room, multiple dew point temperatures collected by multiple dew point temperature sensors are obtained.
  • Step S20 Determine whether the radiation surface of the terminal heat exchange component is There is a risk of condensation.
  • the temperature difference between the temperature parameter and the dew point temperature is determined, and the temperature difference is compared with the preset parameter value. If the temperature difference between the temperature parameter characterizing the surface temperature of the terminal heat exchange component and the dew point temperature is less than or equal to the preset parameter value, it means that the difference between the surface temperature of the terminal heat exchange component and the dew point temperature is small, and there is a risk of condensation on the radiation surface of the terminal heat exchange component; on the contrary, if the temperature difference between the temperature parameter characterizing the surface temperature of the terminal heat exchange component and the dew point temperature is greater than the preset parameter value, it means that the difference between the surface temperature of the terminal heat exchange component and the dew point temperature is large, and there is no risk of condensation on the radiation surface of the terminal heat exchange component.
  • the temperature difference between the temperature parameter of the surface temperature of the terminal heat exchange component and the dew point temperature is continuously less than or equal to a preset parameter value over a period of time. If so, it is determined that there is a condensation risk on the radiation surface of the terminal heat exchange component.
  • D represents the temperature difference
  • TW represents the refrigerant temperature of the radiation air conditioning system
  • Tdew_Rn represents the dew point temperature
  • the dew removal control mode is entered. If the current temperature difference D> the preset value Ds1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode. Further, if the temperature difference D detected within the preset time TIMS1 is all ⁇ the preset value Ds1, it is determined that there is a condensation risk, and the dew removal control mode is entered. If the temperature difference D within TIMS1 is not ⁇ the preset value Ds1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode.
  • Step S30 When there is a risk of condensation on the radiation surface of the terminal heat exchange component, control the heat pump system to switch to a heating mode.
  • the method also includes: obtaining a preset temperature value corresponding to the dew removal operation mode; and controlling the target water temperature of the heat pump system to be adjusted to the preset temperature value.
  • the dew removal control mode is entered, the preset temperature value TWSs corresponding to the dew removal control mode is obtained, the heat pump system is controlled to switch to the heating mode, and the target water temperature is adjusted to the preset temperature value TWSs.
  • the preset value Ds1, the preset time TIMS1, and the preset water temperature value TWSs are all parameter values set by the developer in the control device according to the specific model combined with the experimental test results and calculation results.
  • the first connecting port D of the four-way reversing valve 3 in the heat pump system is connected to the fourth connecting port E, and the second connecting port C is connected to the third connecting port S.
  • the first connecting port D of the four-way reversing valve 3 is switched to be connected to the second connecting port C, and the third connecting port S is switched to be connected to the fourth connecting port E.
  • the heat pump system is controlled to switch to the heating mode, and the opening of the throttling component 4 is controlled according to the preset water temperature value TWSs.
  • a target room with condensation risk among multiple rooms managed by the heat pump system is determined, the heating mode is switched to the heating mode, and the heat-carrying refrigerant produced by the heat pump system is transported to the target room through the manifold to perform a decondensation operation.
  • the heat pump system when the heat pump system is in cooling mode, whether there is a condensation risk is determined based on the temperature parameters characterizing the surface temperature of the terminal heat exchange component and the dew point temperature of the space where the terminal heat exchange component is located.
  • the heat pump system switches to heating mode to increase the radiation surface temperature and dry the condensation water on the radiation surface to avoid condensation accumulation that causes the radiation surface to become moldy or even the surface decorative layer to fall off, thereby greatly improving the reliability of the radiation air conditioning water system and improving the user experience.
  • step S20 includes: determining a first temperature difference between the coolant temperature and the dew point temperature, and/or determining a second temperature difference between the radiation surface temperature and the dew point temperature;
  • the step of determining whether there is a condensation risk on the terminal heat exchange component according to the first temperature difference and/or the second temperature difference includes:
  • the first temperature difference is less than or equal to a first preset value, or when the first temperature difference is less than or equal to the first preset value and lasts for a first preset time, it is determined that there is a condensation risk on the radiation surface of the terminal heat exchange component; and/or,
  • the second temperature difference is less than or equal to a second preset value, or when the second temperature difference is less than or equal to the second preset value and lasts for a second preset time, it is determined that there is a condensation risk on the terminal heat exchange component.
  • D represents the first temperature difference
  • TW represents the refrigerant temperature of the radiation air-conditioning system
  • Tdew_Rn represents the dew point temperature
  • a dew point temperature sensor is provided in the room, and the dew point temperature in the room is obtained by the dew point temperature sensor.
  • the first temperature difference is calculated based on the obtained refrigerant temperature and dew point temperature of the radiation air conditioning system.
  • multiple dew point temperature sensors are installed in the same room, multiple dew point temperatures collected by the multiple dew point temperature sensors are obtained, and multiple temperature differences are calculated based on the refrigerant temperature of the radiation air-conditioning system and the multiple dew point temperatures, and the minimum value is selected as the first temperature difference.
  • the dew removal control mode is entered; if the current first temperature difference D>the first preset value Ds1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode.
  • the dew removal control mode is entered; if the first temperature difference D within TIMS1 is not ⁇ the first preset value Ds1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode.
  • the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the radiation surface temperature
  • S represents the second temperature difference
  • Tsur_Rn represents the radiation surface temperature
  • Tdew_Rn represents the dew point temperature
  • a radiation surface temperature sensor and a dew point temperature sensor are provided in the room, the radiation surface temperature in the room is obtained by the radiation surface temperature sensor, the dew point temperature in the room is obtained by the dew point temperature sensor, and the second temperature difference is calculated based on the obtained radiation surface temperature and dew point temperature.
  • multiple radiation surface temperature sensors and one dew point temperature sensor are installed in the same room, multiple radiation surface temperatures collected by the multiple radiation surface temperature sensors are obtained, the temperature differences between the multiple radiation surface temperatures and the dew point temperature are calculated, and the minimum value is selected from the multiple temperature differences as the second temperature difference.
  • multiple radiation surface temperature sensors and multiple dew point temperature sensors are installed in the same room, multiple radiation surface temperatures collected by the multiple radiation surface temperature sensors are obtained, multiple dew point temperatures collected by the multiple dew point temperature sensors are obtained, the temperature difference between any radiation surface temperature and any dew point temperature is calculated, and the minimum value is selected from the multiple temperature differences as the second temperature difference.
  • the dew removal control mode is entered. If the current second temperature difference S> the second preset value Ss1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode. In one embodiment, if the second temperature difference S detected within the second preset time length TIMS2 is all ⁇ the second preset value Ss1, it is determined that there is a condensation risk, and the dew removal control mode is entered. If the second temperature difference S within TIMS2 is not ⁇ the second preset value Ss1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode.
  • D represents the first temperature difference
  • TW represents the refrigerant temperature of the radiation air-conditioning system
  • Tdew_Rn represents the dew point temperature
  • S represents the second temperature difference
  • Tsur_Rn represents the radiation surface temperature
  • Tdew_Rn represents the dew point temperature
  • the dew removal control mode is entered. If the current D>the first preset value Ds1 and S>the second preset value Ss1, it is determined that there is no condensation risk and the heat pump system continues to be controlled with the parameters corresponding to the cooling mode. In one embodiment, if the D detected within the first preset time length TIMS1 is ⁇ the first preset value Ds1 or the S detected within the second preset time length TIMS2 is ⁇ the second preset value Ds2, it is determined that there is a condensation risk and the dew removal control mode is entered.
  • the D within TIMS1 is not ⁇ the first preset value Ds1 and the S detected within TIMS2 is not ⁇ the second preset value Ds2, it is determined that there is no condensation risk and the heat pump system continues to be controlled with the parameters corresponding to the cooling mode.
  • the method of judging whether there is a condensation risk on the radiation surface only based on the radiation surface temperature and the dew point temperature, and performing system protection shutdown and risk warning when facing a scene with high room humidity, the system may be shut down for a long time due to the judgment of condensation risk, resulting in the user being unable to use the air conditioner normally.
  • the temperature sensor detection is offset, even if the condensation protection shutdown occurs, condensation water may still be generated due to the low temperature of the radiation surface. Long-term accumulation may cause the radiation surface to mold or even the decorative layer to fall off, affecting the appearance.
  • the redundant condensation risk determination method is proposed in this application.
  • the condensation risk is judged based on the temperature difference between the refrigerant temperature and the dew point temperature of the radiation air conditioning system, and/or the temperature difference between the radiation surface temperature and the dew point temperature, thereby avoiding the misjudgment of the condensation risk. Even if the radiation surface temperature sensor is offset, the condensation risk can be determined based on the refrigerant temperature and the dew point temperature, thereby increasing the reliability of the system.
  • the heat pump system switches to the heating mode, increases the radiation surface temperature, and dries the condensation water on the radiation surface, thereby avoiding the accumulation of condensation and causing the radiation surface to mold or even the surface decorative layer to fall off, making the dew removal control more accurate and effective.
  • FIG. 6 is a flow chart of an embodiment of a dew removal control method of the present application.
  • step S30 the method further includes:
  • Step S40 When the operation of the heat pump system reaches a preset condition, controlling the heat pump system to switch to the cooling mode;
  • the preset condition includes at least one of the following:
  • the target temperature difference value is greater than a third preset value, or the target temperature difference value is greater than the third preset value and lasts for a third preset time, and the target temperature difference value is the temperature difference between the current temperature parameter characterizing the surface temperature of the terminal heat exchange component and the current dew point temperature of the space where the terminal heat exchange component is located;
  • the accumulated operation time of the heating mode is greater than or equal to a fourth preset time
  • the temperature difference between the ambient temperature of the space where the terminal heat exchange component is located and the set temperature is greater than or equal to a fourth preset value.
  • the current temperature parameter characterizing the surface temperature of the terminal heat exchange component includes a refrigerant temperature of the radiation air conditioning system and/or a radiation surface temperature of the terminal heat exchange component.
  • M1 represents the target temperature difference
  • TW represents the refrigerant temperature of the radiation air-conditioning system
  • Tdew_Rn represents the dew point temperature
  • the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode. In one embodiment, if it is detected that the target temperature difference M1 is continuously greater than the third preset value DS2 within the third preset time length TIMS3, the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode.
  • M2 represents the target temperature difference
  • Tsur_Rn represents the radiation surface temperature
  • Tdew_Rn represents the dew point temperature
  • the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode. In one embodiment, if it is detected that the target temperature difference M2 is continuously greater than the third preset value Ss2 within the third preset time length TIMS4, the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode.
  • M1 and M2 represent the target temperature difference
  • TW represents the refrigerant temperature of the radiation air-conditioning system
  • Tdew_Rn represents the dew point temperature
  • Tsur_Rn represents the radiation surface temperature
  • the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode. In one embodiment, if it is detected that the target temperature difference M1 is continuously greater than the third preset value DS2 within the third preset time length TIMS3 and the target temperature difference M2 is continuously greater than the third preset value Ss2 within the third preset time length TIMS4, the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode.
  • FIG. 7 is a schematic diagram of the dew removal control process of the dew removal control method of the present application;
  • the heat pump system is a hot and cold water unit, the hot and cold water unit is in cooling mode and turned on, the unit water supply temperature TW, the room dew point temperature Tdew_Rn, the room ambient temperature T1_Rn (room air temperature), and the room set temperature T1S_Rn are obtained, and it is determined whether the room radiation surface temperature Tsur_Rn is received. If so, the temperature difference D between the water supply temperature and the dew point temperature and the temperature difference S between the radiation surface temperature and the dew point temperature are calculated, and whether there is a condensation risk based on D and S.
  • the radiation air conditioning water system exits the dew removal operation mode, controls the hot and cold water unit to switch to the cooling mode, and controls the target water temperature of the hot and cold water unit according to the cooling target value before the dew removal operation.
  • the temperature difference D between the water supply temperature and the dew point temperature is calculated, and whether there is a condensation risk is determined based on D. Further, if it is detected that the target temperature difference M1 between the water supply temperature and the dew point temperature within the preset time TIMS3 is continuously greater than the preset value DS3, the radiation air conditioning water system exits the dew removal operation mode, controls the hot and cold water units to switch to the cooling mode, and controls the target water temperature of the hot and cold water units according to the cooling target value before the dew removal operation.
  • the step S10 further includes: when the hot and cold water unit is in the cooling mode, the room environment temperature T1_Rn and the room setting temperature T1S_Rn are also obtained.
  • the method further includes: if it is detected that the temperature difference between the room environment temperature and the room setting temperature is greater than or equal to the fourth preset value Rs, the radiation air conditioning water system exits the dew removal operation mode, controls the hot and cold water unit to switch to the cooling mode, and controls the target water temperature of the hot and cold water unit according to the cooling target value before the dew removal operation.
  • the method further includes: if the cumulative operation time TIM of the heating mode of the cold and hot water unit is greater than or equal to the fourth preset time TIMS5, the radiation air conditioning water system exits the dew removal operation mode, controls the cold and hot water unit to switch to the cooling mode, and controls the target water temperature of the cold and hot water unit according to the cooling target value before the dew removal operation.
  • the cumulative operation time of the heating mode of the cold and hot water unit is equal to the cumulative operation time of the dew removal operation mode of the radiation air conditioning system.
  • the first preset time length TIMS1, the first preset value Ds1, the second preset time length TIMS2, the second preset value Ss1, the third preset time length TIMS3 (TIMS4), the third preset value DS3 (Ss2), the fourth preset value Rs, and the fourth preset time length TIMS5 are all set by the developer in the control device according to the specific model combined with the experimental test results and the calculation results. Parameter value.
  • the first target temperature is defined as the target temperature of the refrigerant of the heat pump system in the cooling mode
  • the step of controlling the heat pump system to switch to the heating mode includes:
  • the first target temperature is defined as the target temperature of the refrigerant of the heat pump system in the cooling mode.
  • the step of controlling the heat pump system to switch to the cooling mode includes:
  • the heat pump system is controlled to switch to the cooling mode, and the heat pump system is controlled to operate according to the first target temperature.
  • the radiation air conditioning system determines the first target temperature corresponding to the refrigerant according to the ambient setting temperature.
  • the ambient setting temperature can be the target temperature of the indoor demand set by the user through the remote control, control panel, etc.; the ambient setting temperature can be the mode temperature corresponding to the operation mode set by the user; the ambient setting temperature can be the temperature calculated based on the current environmental information.
  • a preset temperature value TWSs corresponding to the dew removal control mode of the radiation air conditioning system is set in advance, that is, the second target temperature is TWSs.
  • the heat pump system When it is determined that there is a condensation risk in the terminal heat exchange component, the heat pump system is controlled to switch to the heating mode, and the heat pump system is controlled to operate according to the preset temperature value TWSs.
  • the heat pump system is controlled to switch to the cooling mode, and the heat pump system is controlled to operate according to the first target temperature, that is, the target refrigerant temperature of the heat pump system is controlled according to the cooling target value before the dew removal operation of the radiation air conditioning system.
  • the heat pump system when the operation of the heat pump system reaches any preset condition, the heat pump system is controlled to switch to cooling mode, thereby avoiding the heat pump system being in heating mode for a long time and causing large fluctuations in indoor ambient temperature, making dew removal control more accurate and effective, reducing the risk of condensation while improving indoor comfort.
  • FIG. 8 is a flow chart of an embodiment of a dew removal control method of the present application.
  • the radiation air conditioning system in the dew removal control method of the present application includes a plurality of terminal heat exchange components and a manifold, the manifold includes a plurality of water diversion valves, each of the terminal heat exchange components is connected to a corresponding water diversion valve, and the water diversion valve is used to open or close the coolant inflow channel of the corresponding terminal heat exchange component;
  • step S30 the method further includes:
  • Step S301 determining a target terminal heat exchange component having a condensation risk among the plurality of terminal heat exchange components.
  • the control device determines whether each terminal heat exchange component has a condensation risk according to the temperature parameters corresponding to the terminal heat exchange components in each room, and determines the target terminal heat exchange component with condensation risk according to the analysis results.
  • the heat pump system is connected to four terminal heat exchange components numbered 1, 2, 3, and 4, which are respectively deployed in room 1, room 2, room 3, and room 4.
  • the target terminal heat exchange components are determined to be 2 and 4.
  • Step S302 opening the target water diversion valve connected to the target terminal heat exchange component, and closing other water diversion valves except the target water diversion valve.
  • the manifold includes a plurality of water distribution valves, and each terminal heat exchange component is connected to a corresponding water distribution valve, and the refrigerant carrying cold or heat produced by the heat pump system is distributed through the manifold.
  • the target water distribution valve connected to the target terminal heat exchange component is determined from the plurality of water distribution valves, and only the water distribution valve corresponding to the terminal heat exchange component with the risk of condensation is opened, and the others are kept closed, so that the produced refrigerant carrying heat is delivered to the target terminal heat exchange component in a targeted manner through the manifold, so as to perform surface dew removal treatment on the target terminal heat exchange component.
  • step S302 the method further includes: detecting whether the condensation risk of each of the target terminal heat exchange components has been eliminated, and returning to execute step S301 until the condensation risk of all the terminal heat exchange components has been eliminated.
  • the radiation air conditioning system performs a step of detecting whether the condensation risk has been eliminated for each of the target terminal heat exchange components at regular intervals.
  • the radiant air conditioning system detects that any unremoved condensation air exists in all target terminal heat exchange components.
  • the process returns to step S301, re-determines one or more terminal heat exchange components with condensation risk, opens the water diversion valve connected to the terminal heat exchange component with condensation risk, and closes the target water diversion valve connected to the target terminal heat exchange component when the radiation air-conditioning system detects that the condensation risk of all target terminal heat exchange components has been eliminated.
  • multiple target water diversion valves when there is a condensation risk in the space where multiple target terminal heat exchange components are located, multiple target water diversion valves are in an open state, and when it is detected that the condensation risk in the space where the current terminal heat exchange component is located is eliminated, the corresponding current water diversion valve is closed, wherein the current terminal heat exchange component is any one or more terminal heat exchange components among the multiple target terminal heat exchange components.
  • the method of detecting whether the condensation risk of the target terminal heat exchange component has been eliminated includes at least one of the following:
  • the temperature difference between the current temperature parameter representing the surface temperature of the target terminal heat exchange component and the current dew point temperature of the space where the target terminal heat exchange component is located is greater than a third preset value, or the temperature difference between the current temperature parameter representing the surface temperature of the target terminal heat exchange component and the current dew point temperature of the space where the target terminal heat exchange component is located is greater than the third preset value and lasts for a third preset time.
  • the current temperature parameter representing the surface temperature of the target terminal heat exchange component includes the refrigerant temperature of the radiant air conditioning system and/or the radiant surface temperature of the target terminal heat exchange component.
  • the method further includes: when the heat pump system switches to a cooling mode, determining a target state of a water diversion valve corresponding to the cooling mode; and controlling the operation of a plurality of water diversion valves according to the target state of the water diversion valve.
  • the dew removal control operation mode if it is detected that all terminal heat exchange components have eliminated the risk of condensation, the dew removal control operation mode is exited, the heat pump system is controlled to switch to the cooling mode, and the operation of multiple water diverter valves is controlled according to the target state of the water diverter valve corresponding to the cooling mode.
  • the target state of the water diverter valve corresponding to the cooling mode corresponds to the switch state of the multiple water diverter valves before the dew removal operation.
  • the first connecting port D and the second connecting port C of the four-way reversing valve 3 of the heat pump system are connected, and the third connecting port S and the fourth connecting port E are connected.
  • the first connecting port D and the fourth connecting port E of the four-way reversing valve 3 are controlled to be connected, and the second connecting port C and the third connecting port S are controlled to be connected, so as to control the heat pump system to switch to the cooling mode.
  • the present application determines whether there is a condensation risk on the radiation surfaces of multiple terminal heat exchange components, and when it is determined that there is a condensation risk, the heat pump system switches to heating mode, and the prepared heat-carrying refrigerant is transported to the target terminal heat exchange component with condensation risk through the water diversion valve of the manifold, thereby achieving precise control of dew removal, increasing the radiation surface temperature, and drying the condensation water on the radiation surface, thereby avoiding condensation accumulation that causes mold on the radiation surface and even shedding of the surface decorative layer, greatly improving the reliability of the radiation air conditioning water system and improving the user experience.
  • an embodiment of the present application further proposes a storage medium, on which a dew removal control program is stored.
  • the dew removal control program is executed by a processor, the dew removal control method as described above is 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.
  • FIG. 9 is a structural block diagram of an embodiment of a dew removal control device of the present application.
  • the dew removal control device proposed in the embodiment of the present application is applied to a radiant air conditioning system, wherein the radiant air conditioning system includes a heat pump system, a terminal heat exchange component, and a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component.
  • the dew removal control device includes:
  • the acquisition module 10 is used to acquire the temperature parameter representing the surface temperature of the terminal heat exchange component and the dew point temperature of the space where the terminal heat exchange component is located when the heat pump system is in a cooling mode.
  • the radiation air conditioning system of the present application includes one or more terminal heat exchange components.
  • the present application takes the radiation air conditioning system as a radiation air conditioning water system as an example for explanation, referring to FIG. 4, FIG. 4 is a diagram of the present application except The first schematic diagram of the radiation air conditioning water system of the exposure control method, the radiation air conditioning water system mainly includes two parts: a heat pump system and a terminal heat exchange component, and also includes a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component.
  • the terminal heat exchange component is arranged in the room, including radiation plates, capillary networks and other radiation heat exchange forms.
  • the heat pump system produces cold water or hot water and transports it to the terminal heat exchange component in the room through the refrigerant circulation system for cooling or heating the room.
  • FIG. 5 is a schematic diagram of a radiation air conditioning water system of the dew removal control method of the present application;
  • the radiation air conditioning water system mainly includes a heat pump system, a terminal heat exchange component and a manifold, and also includes a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component.
  • the heat pump system produces cold water or hot water and transports it to the manifold through the refrigerant circulation system.
  • the manifold switching valve controls the cold water or hot water to flow to the terminal heat exchange component corresponding to the open valve, which is used to cool or heat the room.
  • the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the radiation surface temperature
  • a radiation surface temperature sensor is provided in the room.
  • the control device can receive the radiation surface temperature in the room through the radiation surface temperature sensor, wherein, if multiple radiation surface temperature sensors are provided in the same room, the temperature data collected by the multiple radiation surface temperature sensors are obtained.
  • the surface temperature of the terminal heat exchange component is related to the temperature of the medium flowing into the terminal heat exchange component.
  • the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the refrigerant temperature of the radiation air conditioning system, and the refrigerant temperature of the radiation air conditioning system can be the outlet water temperature of the heat pump system, and can also be the inlet water temperature of the terminal heat exchange component.
  • a temperature sensor is provided at the water supply port of the heat pump system, and the temperature signal collected by the temperature sensor is obtained, and the temperature signal is analyzed to obtain the refrigerant temperature; in another implementation, a temperature sensor is provided at the water inlet of the terminal heat exchange component, and the temperature signal collected by the temperature sensor is analyzed to obtain the refrigerant temperature.
  • the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the refrigerant temperature and the radiation surface temperature of the radiation air conditioning system.
  • the first connecting port D and the fourth connecting port E of the four-way reversing valve 3 in the heat pump system are connected, and the second connecting port C and the third connecting port S are connected, and the heat pump system produces a refrigerant carrying cold, which enters the medium circulation loop and flows to the terminal heat exchange component.
  • the space where the terminal heat exchange component is located refers to the room or indoor area where the terminal heat exchange component is deployed.
  • a dew point temperature sensor is provided in the room where the terminal heat exchange component is located, and the dew point temperature in the room is obtained by the dew point temperature sensor. If multiple dew point temperature sensors are provided in the same room, multiple dew point temperatures collected by multiple dew point temperature sensors are obtained.
  • the determination module 20 is used to determine whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the temperature parameter and the dew point temperature.
  • the temperature difference between the temperature parameter and the dew point temperature is determined, and the temperature difference is compared with the preset parameter value. If the temperature difference between the temperature parameter characterizing the surface temperature of the terminal heat exchange component and the dew point temperature is less than or equal to the preset parameter value, it means that the difference between the surface temperature of the terminal heat exchange component and the dew point temperature is small, and there is a risk of condensation on the radiation surface of the terminal heat exchange component; on the contrary, if the temperature difference between the temperature parameter characterizing the surface temperature of the terminal heat exchange component and the dew point temperature is greater than the preset parameter value, it means that the difference between the surface temperature of the terminal heat exchange component and the dew point temperature is large, and there is no risk of condensation on the radiation surface of the terminal heat exchange component.
  • the temperature difference between the temperature parameter of the surface temperature of the terminal heat exchange component and the dew point temperature is continuously less than or equal to a preset parameter value over a period of time. If so, it is determined that there is a condensation risk on the radiation surface of the terminal heat exchange component.
  • D represents the temperature difference
  • TW represents the refrigerant temperature of the radiation air conditioning system
  • Tdew_Rn represents the dew point temperature
  • the current temperature difference D is less than or equal to the preset value Ds1, it is determined that there is a condensation risk and the dew removal control mode is entered; if the current temperature difference D is greater than the preset value Ds1, it is determined that there is no condensation risk and the heat pump system continues to operate with the parameters corresponding to the cooling mode. If the preset value Ds1 is less than or equal to the preset value Ds1, it is determined that there is a condensation risk and the dew removal control mode is entered. If the temperature difference D in TIMS1 is not less than or equal to the preset value Ds1, it is determined that there is no condensation risk and the heat pump system continues to be controlled with the parameters corresponding to the cooling mode.
  • the control module 30 is used to control the heat pump system to switch to a heating mode when there is a risk of condensation on the radiation surface of the terminal heat exchange component.
  • the preset temperature value corresponding to the dew removal operation mode is obtained; the target water temperature of the heat pump system is controlled to be adjusted to the preset temperature value.
  • the dew removal control mode is entered, the preset temperature value TWSs corresponding to the dew removal control mode is obtained, the heat pump system is controlled to switch to the heating mode, and the target water temperature is adjusted to the preset temperature value TWSs.
  • the preset value Ds1, the preset time TIMS1 and the preset water temperature value TWSs are all parameter values set by the developers in the control device according to the specific model combined with the experimental test results and calculation results.
  • the first communication port D of the four-way reversing valve 3 in the heat pump system is connected to the fourth communication port E, and the second communication port C is connected to the third communication port S.
  • the first communication port D of the four-way reversing valve 3 is switched to be connected to the second communication port C, and the third communication port S is switched to be connected to the fourth communication port E.
  • the heat pump system is controlled to switch to the heating mode, and the opening of the throttling component 4 is controlled according to the preset water temperature value TWSs.
  • a target room with condensation risk among multiple rooms managed by the heat pump system is determined, the mode is switched to heating mode, and the heat-carrying refrigerant produced by the heat pump system is transported to the target room through a manifold to perform a decondensation operation.
  • the heat pump system when the heat pump system is in cooling mode, whether there is a condensation risk is determined based on the temperature parameters characterizing the surface temperature of the terminal heat exchange component and the dew point temperature of the space where the terminal heat exchange component is located.
  • the heat pump system switches to heating mode to increase the radiation surface temperature and dry the condensation water on the radiation surface to avoid condensation accumulation that causes the radiation surface to become moldy or even the surface decorative layer to fall off, thereby greatly improving the reliability of the radiation air conditioning water system and improving the user experience.
  • the technical solution of the present application can be embodied in the form of a software product.
  • 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 the various embodiments 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

A dew removal control method and apparatus, a radiant air-conditioning system, and a storage medium. The method is applied to a radiant air-conditioning system. The radiant air-conditioning system comprises a heat pump system (b), a tail-end heat exchange component (c), and a refrigerant circulation system, which is connected to the heat pump system (b) and the tail-end heat exchange component (c). The method comprises: when a heat pump system (b) is in a refrigeration mode, acquiring a temperature parameter representing the surface temperature of a tail-end heat exchange component (c), and the dew point temperature of a space where the tail-end heat exchange component (c) is located; according to the temperature parameter and the dew point temperature, determining whether there is a condensation risk on a radiant surface of the tail-end heat exchange component (c); and if so, controlling the heat pump system (b) to switch to a heating mode.

Description

除露控制方法、装置、辐射空调***及存储介质Dew removal control method, device, radiation air conditioning system and storage medium
相关申请Related Applications
本申请要求于2022年11月22号申请的、申请号为202211467972.2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。This application claims priority to Chinese patent application No. 202211467972.2 filed on November 22, 2022, the entire contents of which are incorporated by reference into this application.
技术领域Technical Field
本申请涉及空调器技术领域，尤其涉及一种除露控制方法、装置、辐射空调***及存储介质。The present application relates to the technical field of air conditioners, and in particular to a dew removal control method, device, radiation air conditioning system and storage medium.
背景技术Background technique
除了常规的空调器以外，有的空调器会设置冷热水机组和末端换热部件，通过冷热水机组向末端换热部件输送携带冷量或热量的水，末端换热部件利用水中的能量调节室内环境。In addition to conventional air conditioners, some air conditioners are equipped with hot and cold water units and terminal heat exchange components. The hot and cold water units transport water carrying cold or hot water to the terminal heat exchange components, and the terminal heat exchange components use the energy in the water to adjust the indoor environment.
其中，该空调器制冷时，室内环境湿度大时末端换热部件表面容易凝露，目前一般将冷热水机组的目标出水温度设定较高，且设定值固定不变，以防末端换热部件表面出现凝露问题，但是这种方式可能导致制冷效果较差，无法将房间环境温度降至用户设定值，由此可见目前的防凝露控制存在影响室内舒适性的问题。Among them, when the air conditioner is cooling, condensation is easy to occur on the surface of the terminal heat exchange component when the indoor humidity is high. At present, the target water outlet temperature of the hot and cold water units is generally set higher, and the set value is fixed to prevent condensation from occurring on the surface of the terminal heat exchange component. However, this method may result in poor cooling effect and fail to reduce the room ambient temperature to the user set value. It can be seen that the current anti-condensation control has the problem of affecting indoor comfort.
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。The above contents are only used to assist in understanding the technical solution of the present application and do not constitute an admission that the above contents are prior art.
发明内容Summary of the invention
本申请的主要目的在于提供一种除露控制方法、装置、辐射空调***及存储介质，旨在降低凝露风险同时提高室内舒适性。The main purpose of the present application is to provide a dew removal control method, device, radiant air conditioning system and storage medium, aiming to reduce the risk of condensation while improving indoor comfort.
为实现上述目的，本申请提供了一种除露控制方法，所述除露控制方法应用于辐射空调***，所述辐射空调***包括热泵***、末端换热部件以及与所述热泵***和所述末端换热部件连接的载冷剂循环***，所述除露控制方法包括：To achieve the above-mentioned purpose, the present application provides a dew removal control method, which is applied to a radiant air conditioning system, wherein the radiant air conditioning system includes a heat pump system, a terminal heat exchange component, and a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component, and the dew removal control method includes:
在所述热泵***处于制冷模式时，获取表征所述末端换热部件的表面温度的温度参数和所述末端换热部件所处空间的露点温度；When the heat pump system is in a cooling mode, obtaining a temperature parameter characterizing a surface temperature of the terminal heat exchange component and a dew point temperature of a space where the terminal heat exchange component is located;
根据所述温度参数和所述露点温度确定所述末端换热部件的辐射表面是否存在凝露风险；Determining whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the temperature parameter and the dew point temperature;
在所述末端换热部件的辐射表面存在凝露风险时，控制所述热泵***切换至制热模式。When there is a risk of condensation on the radiation surface of the terminal heat exchange component, the heat pump system is controlled to switch to a heating mode.
在一实施例中，所述表征所述末端换热部件的表面温度的温度参数包括所述辐射空调***的载冷剂温度和/或所述末端换热部件的辐射表面温度。In one embodiment, the temperature parameter characterizing the surface temperature of the terminal heat exchange component includes the refrigerant temperature of the radiation air conditioning system and/or the radiation surface temperature of the terminal heat exchange component.
在一实施例中，所述根据所述温度参数和所述露点温度确定所述末端换热部件的辐射表面是否存在凝露风险的步骤包括：In one embodiment, the step of determining whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the temperature parameter and the dew point temperature includes:
确定所述载冷剂温度与所述露点温度之间的第一温度差值，且/或，确定所述辐射表面温度与所述露点温度之间的第二温度差值；Determining a first temperature difference between the coolant temperature and the dew point temperature, and/or determining a second temperature difference between the radiation surface temperature and the dew point temperature;
根据第一温度差值和/或所述第二温度差值确定所述末端换热部件的辐射表面是否存在凝露风险。It is determined whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the first temperature difference and/or the second temperature difference.
在一实施例中，所述根据第一温度差值和/或所述第二温度差值确定所述末端换热部件的辐射表面是否存在凝露风险的步骤包括：In one embodiment, the step of determining whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the first temperature difference and/or the second temperature difference includes:
当所述第一温度差值小于或等于第一预设值时，或，当所述第一温度差值小于或等于第一预设值且持续第一预设时长时，确定所述末端换热部件的辐射表面存在凝露风险；和/或，当所述第二温度差值小于或等于第二预设值时，或，当所述第二温度差值小于或等于第二预设值且持续第二预设时长时，确定所述末端换热部件的辐射表面存在凝露风险。When the first temperature difference is less than or equal to a first preset value, or when the first temperature difference is less than or equal to the first preset value and lasts for a first preset time, it is determined that there is a risk of condensation on the radiation surface of the terminal heat exchange component; and/or, when the second temperature difference is less than or equal to a second preset value, or when the second temperature difference is less than or equal to the second preset value and lasts for a second preset time, it is determined that there is a risk of condensation on the radiation surface of the terminal heat exchange component.
在一实施例中，所述在所述末端换热部件的辐射表面存在凝露风险时，控制所述热泵***切换至制热模式的步骤之后，还包括： In one embodiment, when there is a risk of condensation on the radiation surface of the terminal heat exchange component, after the step of controlling the heat pump system to switch to the heating mode, the method further includes:
当所述热泵***运行达到预设条件时，控制所述热泵***切换至所述制冷模式；When the operation of the heat pump system reaches a preset condition, controlling the heat pump system to switch to the cooling mode;
其中，所述预设条件包括下列至少一个：The preset condition includes at least one of the following:
目标温差值大于第三预设值，或，目标温差值大于第三预设值且持续第三预设时长，所述目标温差值为表征所述末端换热部件的表面温度的当前温度参数与所述末端换热部件所处空间的当前露点温度之间的温度差值；The target temperature difference value is greater than a third preset value, or the target temperature difference value is greater than the third preset value and lasts for a third preset time, and the target temperature difference value is the temperature difference between the current temperature parameter characterizing the surface temperature of the terminal heat exchange component and the current dew point temperature of the space where the terminal heat exchange component is located;
所述制热模式运行的累积时长大于或等于第四预设时长；The accumulated operation time of the heating mode is greater than or equal to a fourth preset time;
所述末端换热部件所处空间的环境温度与设定温度之间的温度差值大于或等于第四预设值。The temperature difference between the ambient temperature of the space where the terminal heat exchange component is located and the set temperature is greater than or equal to a fourth preset value.
在一实施例中，所述表征所述末端换热部件的表面温度的当前温度参数包括所述辐射空调***的载冷剂温度和/或所述末端换热部件的辐射表面温度。In one embodiment, the current temperature parameter characterizing the surface temperature of the terminal heat exchange component includes the refrigerant temperature of the radiant air conditioning system and/or the radiant surface temperature of the terminal heat exchange component.
在一实施例中，定义第一目标温度为所述热泵***在所述制冷模式下的载冷剂目标温度，所述控制所述热泵***切换至制热模式的步骤包括：In one embodiment, the first target temperature is defined as the target temperature of the refrigerant of the heat pump system in the cooling mode, and the step of controlling the heat pump system to switch to the heating mode includes:
控制所述热泵***切换至所述制热模式，并根据第二目标温度控制所述热泵***运行，所述第一目标温度小于所述第二目标温度；且/或，Controlling the heat pump system to switch to the heating mode, and controlling the heat pump system to operate according to a second target temperature, wherein the first target temperature is lower than the second target temperature; and/or,
定义第一目标温度为所述热泵***在所述制冷模式下的载冷剂目标温度，所述控制所述热泵***切换至所述制冷模式的步骤包括：The first target temperature is defined as the target temperature of the refrigerant of the heat pump system in the cooling mode. The step of controlling the heat pump system to switch to the cooling mode includes:
控制所述热泵***切换至所述制冷模式，并根据所述第一目标温度控制所述热泵***运行。The heat pump system is controlled to switch to the cooling mode, and the heat pump system is controlled to operate according to the first target temperature.
在一实施例中，所述辐射空调***包括多个末端换热部件和分集水器，所述分集水器包括多个分水阀，各个所述末端换热部件均与对应的分水阀连接，所述分水阀用于打开或关闭对应的末端换热部件的载冷剂流入通道；In one embodiment, the radiation air conditioning system includes a plurality of terminal heat exchange components and a manifold, the manifold includes a plurality of water diversion valves, each of the terminal heat exchange components is connected to a corresponding water diversion valve, and the water diversion valve is used to open or close the coolant inflow channel of the corresponding terminal heat exchange component;
所述控制所述热泵***切换至制热模式的步骤之后，所述方法还包括：After the step of controlling the heat pump system to switch to the heating mode, the method further includes:
确定所述多个末端换热部件中存在凝露风险的目标末端换热部件；Determining a target terminal heat exchange component having a condensation risk among the plurality of terminal heat exchange components;
开启所述目标末端换热部件连接的目标分水阀，并关闭除所述目标分水阀外的其他分水阀。The target water diversion valve connected to the target terminal heat exchange component is opened, and other water diversion valves except the target water diversion valve are closed.
在一实施例中，所述开启所述目标末端换热部件连接的目标分水阀，并关闭除所述目标分水阀外的其他分水阀的步骤之后，还包括：In one embodiment, after the step of opening the target water diversion valve connected to the target terminal heat exchange component and closing other water diversion valves except the target water diversion valve, the step further includes:
检测每个所述目标末端换热部件是否已消除凝露风险，并返回执行所述确定所述多个末端换热部件中存在凝露风险的目标末端换热部件的步骤，直至所有所述末端换热部件均已消除凝露风险。Detect whether each of the target terminal heat exchange components has eliminated the condensation risk, and return to execute the step of determining the target terminal heat exchange component with condensation risk among the multiple terminal heat exchange components until the condensation risk of all the terminal heat exchange components has been eliminated.
在一实施例中，所述开启所述目标末端换热部件连接的目标分水阀，并关闭除所述目标分水阀外的其他分水阀的步骤之后，所述方法还包括：In one embodiment, after the step of opening the target water diversion valve connected to the target terminal heat exchange component and closing other water diversion valves except the target water diversion valve, the method further includes:
当所述热泵***切换至制冷模式时，确定所述制冷模式对应的分水阀目标状态；When the heat pump system switches to a cooling mode, determining a target state of a water diversion valve corresponding to the cooling mode;
根据所述分水阀目标状态控制多个分水阀运行。The operation of multiple water diversion valves is controlled according to the target state of the water diversion valves.
此外，为实现上述目的，本申请还提出一种除露控制装置，所述除露控制装置应用于辐射空调***，所述辐射空调***包括热泵***、末端换热部件以及与所述热泵***和所述末端换热部件连接的载冷剂循环***，所述除露控制装置包括：In addition, to achieve the above purpose, the present application also proposes a dew removal control device, which is applied to a radiant air conditioning system, wherein the radiant air conditioning system includes a heat pump system, a terminal heat exchange component, and a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component, and the dew removal control device includes:
获取模块，用于在所述热泵***处于制冷模式时，获取表征所述末端换热部件的表面温度的温度参数和所述末端换热部件所处空间的露点温度；an acquisition module, used for acquiring, when the heat pump system is in a cooling mode, a temperature parameter characterizing a surface temperature of the terminal heat exchange component and a dew point temperature of a space where the terminal heat exchange component is located;
确定模块，用于根据所述温度参数和所述露点温度确定所述末端换热部件的辐射表面是否存在凝露风险；a determination module, configured to determine whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the temperature parameter and the dew point temperature;
控制模块，用于在所述末端换热部件的辐射表面存在凝露风险时，控制所述热泵***切换至制热模式。The control module is used to control the heat pump system to switch to a heating mode when there is a risk of condensation on the radiation surface of the terminal heat exchange component.
此外，为实现上述目的，本申请还提出一种辐射空调***，所述辐射空调***包括：In addition, to achieve the above objectives, the present application also proposes a radiant air conditioning system, the radiant air conditioning system comprising:
热泵***、末端换热部件、与所述热泵***和所述末端换热部件连接的载冷剂循环系 统以及控制装置；A heat pump system, a terminal heat exchange component, and a coolant circulation system connected to the heat pump system and the terminal heat exchange component. systems and control devices;
所述控制装置包括存储器、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除露控制程序，所述除露控制程序配置为实现如上文所述的除露控制方法。The control device includes a memory, a processor, and a dew removal control program stored in the memory and executable on the processor, wherein the dew removal control program is configured to implement the dew removal control method as described above.
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除露控制程序，所述除露控制程序被处理器执行时实现如上文所述的除露控制方法。In addition, to achieve the above-mentioned purpose, the present application also proposes a storage medium, on which a dew removal control program is stored, and when the dew removal control program is executed by a processor, the dew removal control method as described above is implemented.
本申请中通过在热泵***处于制冷模式下，根据获取到的表征末端换热部件的表面温度的温度参数和末端换热部件所处空间的露点温度确定是否存在凝露风险，在判定存在凝露风险时热泵***切换为制热模式，升高辐射表面温度，烘干辐射表面的凝露水，避免凝露累积导致辐射表面发霉甚至表面装饰层脱落，大大提高辐射空调水***可靠性且改善用户使用体验。In the present application, when the heat pump system is in cooling mode, whether there is a condensation risk is determined based on the temperature parameters characterizing the surface temperature of the terminal heat exchange component and the dew point temperature of the space where the terminal heat exchange component is located. When it is determined that there is a condensation risk, the heat pump system switches to heating mode to increase the radiation surface temperature and dry the condensation water on the radiation surface to avoid condensation accumulation that causes the radiation surface to become moldy or even the surface decorative layer to fall off, thereby greatly improving the reliability of the radiation air conditioning water system and improving the user experience.
附图说明BRIEF DESCRIPTION OF THE DRAWINGS
图1为本申请辐射空调***一实施例运行涉及的硬件结构示意图；FIG1 is a schematic diagram of the hardware structure involved in the operation of an embodiment of the radiation air conditioning system of the present application;
图2为本申请除露控制方法的热泵***示意图；FIG2 is a schematic diagram of a heat pump system of the dew removal control method of the present application;
图3为本申请除露控制方法一实施例的流程示意图；FIG3 is a flow chart of an embodiment of a dew removal control method of the present application;
图4为本申请除露控制方法的辐射空调水***示意图；FIG4 is a schematic diagram of a radiant air conditioning water system of the dew removal control method of the present application;
图5为本申请除露控制方法的辐射空调水***示意图；FIG5 is a schematic diagram of a radiant air conditioning water system of the dew removal control method of the present application;
图6为本申请除露控制方法一实施例的流程示意图；FIG6 is a flow chart of an embodiment of a dew removal control method of the present application;
图7为本申请除露控制方法的除露控制流程示意图；FIG7 is a schematic diagram of a dew removal control process of the dew removal control method of the present application;
图8为本申请除露控制方法一实施例的流程示意图；FIG8 is a flow chart of an embodiment of a dew removal control method of the present application;
图9为本申请除露控制装置一实施例的结构框图。FIG. 9 is a structural block diagram of an embodiment of a dew removal control device of the present application.
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。The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings.
具体实施方式Detailed ways
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。It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.
本申请实施例提出一种辐射空调***，具体用于调节室内环境的温度。The embodiment of the present application provides a radiant air conditioning system, which is specifically used to adjust the temperature of an indoor environment.
在一实施例中，参照图1和图2，辐射空调***包括热泵***b、末端换热部件c、与热泵***b和末端换热部件c连接的载冷剂循环***以及控制装置a，热泵***b和末端换热部件c均与控制装置a连接。所述末端换热部件c用于通过所述热泵***b输出的能量调节室内空间的环境参数(如环境温度和/或环境湿度等)。所述热泵***b用于为末端换热部件c与室内空间的换热提供能量(如冷量或热量)。In one embodiment, referring to FIG. 1 and FIG. 2 , the radiant air conditioning system includes a heat pump system b, a terminal heat exchange component c, a refrigerant circulation system connected to the heat pump system b and the terminal heat exchange component c, and a control device a, wherein the heat pump system b and the terminal heat exchange component c are both connected to the control device a. The terminal heat exchange component c is used to adjust the environmental parameters (such as ambient temperature and/or ambient humidity, etc.) of the indoor space through the energy output by the heat pump system b. The heat pump system b is used to provide energy (such as cooling or heating) for the heat exchange between the terminal heat exchange component c and the indoor space.
在一实施例中，末端换热部件c设置于载冷剂循环***中，所述热泵***b用于调节载冷剂循环***的载冷剂温度，所述末端换热部件c用于调节室内温度。在一实施例中，辐射空调***的载冷剂温度可以为热泵***b的出水温度，也可以为末端换热部件c的进水温度。在其他实施例中，末端换热部件c也可为使用其他介质传输能量的***，例如乙醇溶液等。In one embodiment, the terminal heat exchange component c is disposed in the refrigerant circulation system, the heat pump system b is used to adjust the refrigerant temperature of the refrigerant circulation system, and the terminal heat exchange component c is used to adjust the indoor temperature. In one embodiment, the refrigerant temperature of the radiant air conditioning system can be the outlet water temperature of the heat pump system b, or the inlet water temperature of the terminal heat exchange component c. In other embodiments, the terminal heat exchange component c can also be a system that uses other media to transmit energy, such as ethanol solution.
在一实施例中，参照图1，控制装置a还可与环境检测模块d连接，环境检测模块d可包括室内温度传感器和室外温度传感器，室内温度传感器可检测辐射空调***调节的室内空间的环境温度；室外温度传感器可检测辐射空调***所在的室外空间的环境温度。In one embodiment, referring to Figure 1, the control device a can also be connected to the environment detection module d, and the environment detection module d may include an indoor temperature sensor and an outdoor temperature sensor. The indoor temperature sensor can detect the ambient temperature of the indoor space regulated by the radiation air-conditioning system; the outdoor temperature sensor can detect the ambient temperature of the outdoor space where the radiation air-conditioning system is located.
在一实施例中，参照图1，控制装置a还可与温度检测模块e连接，温度检测模块e可设于载冷剂循环***，用于检测载冷剂温度。具体的，温度检测模块e可设于换热通道出口的一侧，用于检测换热通道流出的载冷剂温度；温度检测模块e也可设于换热通道入口的一侧，用于检测换热通道流入的载冷剂温度；温度检测模块e也可设于末端换热部件c的入口或出口，用于检测流入或流出末端换热部件c的载冷剂温度。In one embodiment, referring to FIG. 1 , the control device a may also be connected to a temperature detection module e, which may be provided in the coolant circulation system to detect the coolant temperature. Specifically, the temperature detection module e may be provided at one side of the heat exchange channel outlet to detect the coolant temperature flowing out of the heat exchange channel; the temperature detection module e may also be provided at one side of the heat exchange channel inlet to detect the coolant temperature flowing into the heat exchange channel; the temperature detection module e may also be provided at the inlet or outlet of the terminal heat exchange component c to detect the coolant temperature flowing into or out of the terminal heat exchange component c.
在一实施例中，参照图1，辐射空调***的控制装置a包括：处理器1001(例如CPU)，存储器1002，计时器1003等。控制装置a中的各部件通过通信总线连接。存储器1002可以是高速RAM存储器，也可以是稳定的存储器(non-volatilememory)，例如磁盘存储器。 存储器1002还可以是独立于前述处理器1001的存储装置。In one embodiment, referring to FIG1 , a control device a of a radiant air conditioning system includes: a processor 1001 (e.g., a CPU), a memory 1002, a timer 1003, etc. The components in the control device a are connected via a communication bus. The memory 1002 may be a high-speed RAM memory or a stable memory (non-volatile memory), such as a disk memory. The memory 1002 may also be a storage device independent of the aforementioned processor 1001 .
本领域技术人员可以理解，图1中示出的装置结构并不构成对装置的限定，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。Those skilled in the art will appreciate that the device structure shown in FIG. 1 does not constitute a limitation on the device, and may include more or fewer components than shown, or a combination of certain components, or a different arrangement of components.
如图1所示，作为一种存储介质的存储器1002中可以包括除露控制程序。在图1所示的装置中，处理器1001可以用于调用存储器1002中存储的除露控制程序，并执行以下实施例中除露控制方法的相关步骤操作。As shown in Fig. 1, the memory 1002 as a storage medium may include a dew removal control program. In the device shown in Fig. 1, the processor 1001 may be used to call the dew removal control program stored in the memory 1002 and execute the relevant steps of the dew removal control method in the following embodiments.
参照图2，在一实施例中，热泵***b包括冷媒循环回路和换热通道，冷媒循环回路包括压缩机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等，水侧换热器2与换热通道换热连接。热泵***b可为具有制冷模式和制热模式两种运行模式，热泵***b运行制冷模式时水侧换热器2处于蒸发状态吸热，热泵***b运行制热模式时水侧换热器2处于冷凝状态放热。Referring to Fig. 2, in one embodiment, the heat pump system b includes a refrigerant circulation loop and a heat exchange channel, the refrigerant circulation loop includes a compressor 1, a water-side heat exchanger 2, a four-way reversing valve 3, a throttling component 4, a heat source-side heat exchanger 5, etc., and the water-side heat exchanger 2 is heat-exchange connected to the heat exchange channel. The heat pump system b can have two operating modes: a cooling mode and a heating mode. When the heat pump system b operates in the cooling mode, the water-side heat exchanger 2 is in an evaporating state to absorb heat, and when the heat pump system b operates in the heating mode, the water-side heat exchanger 2 is in a condensing state to release heat.
载冷剂循环***包括介质循环回路和设于介质循环回路的末端换热部件c。末端换热部件c可包括风机盘管、地暖盘管、辐射板、风盘或者散热片等。介质循环回路中载冷剂(例如水、乙二醇等)的冷量或热量可在末端换热部件c释放到其所在的室内空间。其中，末端换热部件c可有一个或多于一个，多于一个末端换热部件c可分布设于不同的室内空间。不同的室内空间的末端换热部件c的换热类型可相同或不同。基于此，介质循环回路中载冷剂(例如水、乙二醇等)携带的冷量或热量可用于调节多于一个室内空间的环境温度。The refrigerant circulation system includes a medium circulation loop and a terminal heat exchange component c arranged in the medium circulation loop. The terminal heat exchange component c may include a fan coil, a floor heating coil, a radiation panel, an air disk or a heat sink, etc. The cold or heat of the refrigerant (such as water, ethylene glycol, etc.) in the medium circulation loop can be released to the indoor space where it is located at the terminal heat exchange component c. Among them, there may be one or more than one terminal heat exchange component c, and more than one terminal heat exchange component c may be distributed in different indoor spaces. The heat exchange type of the terminal heat exchange component c in different indoor spaces may be the same or different. Based on this, the cold or heat carried by the refrigerant (such as water, ethylene glycol, etc.) in the medium circulation loop can be used to adjust the ambient temperature of more than one indoor space.
介质循环回路具有进口和出口，介质循环回路的进口与换热通道的出口连通，介质循环回路的出口与换热通道的进口连通。The medium circulation loop has an inlet and an outlet. The inlet of the medium circulation loop is communicated with the outlet of the heat exchange channel, and the outlet of the medium circulation loop is communicated with the inlet of the heat exchange channel.
热泵***b运行过程中，热泵***b的换热通道中的载冷剂可吸收水侧换热器2释放的冷量或热量形成携带有冷量或热量的载冷剂，换热通道流出的携带有冷量或热量的载冷剂可进入介质循环回路中，并流动至末端换热部件c中将冷量或热量释放到室内空间的空气中，以调节室内空间的环境温度。释放冷量或热量后的载冷剂可重新进入到换热通道中与水侧换热器2进行换热，换热后的载冷剂可重新进入介质循环回路中换热，如此循环，从而实现辐射空调***对室内空间温度的调节。During the operation of the heat pump system b, the refrigerant in the heat exchange channel of the heat pump system b can absorb the cold or heat released by the water-side heat exchanger 2 to form a refrigerant carrying cold or heat. The refrigerant carrying cold or heat flowing out of the heat exchange channel can enter the medium circulation loop and flow to the terminal heat exchange component c to release the cold or heat to the air in the indoor space to adjust the ambient temperature of the indoor space. The refrigerant after releasing the cold or heat can re-enter the heat exchange channel to exchange heat with the water-side heat exchanger 2. The refrigerant after heat exchange can re-enter the medium circulation loop to exchange heat, and so on, so as to achieve the regulation of the indoor space temperature by the radiation air conditioning system.
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。Among them, 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.
热泵***b制冷运行时，水侧换热器2处于蒸发状态，换热通道中的介质吸收水侧换热器2输出的冷量后温度降低形成携带冷量的载冷剂，携带冷量的载冷剂进入到介质循坏回路中并流动至末端换热部件c，释放冷量到室内空间，室内空间的环境温度降低。参考图2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。When the heat pump system b is in cooling operation, the water-side heat exchanger 2 is in an evaporating state. The medium in the heat exchange channel absorbs the cold output by the water-side heat exchanger 2 and its temperature drops to form a refrigerant carrying cold. The refrigerant carrying cold enters the medium circulation loop and flows to the terminal heat exchange component c, releasing cold to the indoor space, and the ambient temperature of the indoor space drops. Referring to the dotted refrigerant flow direction in Figure 2, 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. At this time, the water-heat heat exchanger 2 acts as an evaporator to absorb the heat of the water body, thereby realizing water body cooling. Finally, the four-way reversing valve 3 flows back to the compressor 1 to complete the refrigeration process. During 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.
热泵***b制热运行时，水侧换热器2处于冷凝状态，换热通道中的介质吸收水侧换热器2输出的热量后温度升高形成携带热量的载冷剂，携带热量的载冷剂进入到介质循环回路中并流动至末端换热部件c，释放热量到室内空间，室内空间的环境温度升高。参考 图2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。When the heat pump system b is in heating operation, the water-side heat exchanger 2 is in a condensing state. The medium in the heat exchange channel absorbs the heat output by the water-side heat exchanger 2 and its temperature rises to form a refrigerant carrying heat. The refrigerant carrying heat enters the medium circulation loop and flows to the terminal heat exchange component c, releasing heat to the indoor space, and the ambient temperature of the indoor space rises. In the solid line refrigerant flow direction in Figure 2, the compressor 1 runs to compress the refrigerant to obtain high-temperature and high-pressure refrigerant. 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. At this time, 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. After passing through the water-side heat exchanger 2, the refrigerant flows through the throttling component 4 in a high-pressure medium-temperature state, and then obtains a low-pressure medium-temperature refrigerant through the throttling component 4. The refrigerant flows through the heat source side heat exchanger 5, at this time, 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. In 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, so as to facilitate the next refrigerant compression.
本申请实施例提供了一种除露控制方法，参照图3，图3为本申请除露控制方法一实施例的流程示意图。An embodiment of the present application provides a dew removal control method. Referring to FIG. 3 , FIG. 3 is a flow chart of an embodiment of the dew removal control method of the present application.
在一实施例中，所述除露控制方法应用于辐射空调***，所述辐射空调***包括热泵***、末端换热部件以及与所述热泵***和所述末端换热部件连接的载冷剂循环***，所述除露控制方法包括以下步骤：In one embodiment, the dew removal control method is applied to a radiant air conditioning system, the radiant air conditioning system comprising a heat pump system, a terminal heat exchange component, and a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component, and the dew removal control method comprises the following steps:
步骤S10：在所述热泵***处于制冷模式时，获取表征所述末端换热部件的表面温度的温度参数和所述末端换热部件所处空间的露点温度。Step S10: when the heat pump system is in cooling mode, obtaining a temperature parameter characterizing the surface temperature of the terminal heat exchange component and a dew point temperature of a space where the terminal heat exchange component is located.
可以理解的是，本申请的辐射空调***中包含一个或多个末端换热部件，在一实施例中，本申请以辐射空调***为辐射空调水***为例进行说明，参照图4，图4为本申请除露控制方法的辐射空调水***第一示意图，辐射空调水***主要包括热泵***和末端换热部件两部分，还包括与热泵***和末端换热部件连接的载冷剂循环***，末端换热部件设置于房间，包括辐射板、毛细管网等辐射换热形式，热泵***制取冷水或热水通过载冷剂循环***输送至房间内末端换热部件，用于房间降温或升温。It can be understood that the radiation air-conditioning system of the present application includes one or more terminal heat exchange components. In one embodiment, the present application takes the radiation air-conditioning system as a radiation air-conditioning water system as an example for explanation, referring to Figure 4, Figure 4 is the first schematic diagram of the radiation air-conditioning water system of the dew removal control method of the present application. The radiation air-conditioning water system mainly includes two parts: a heat pump system and a terminal heat exchange component, and also includes a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component. The terminal heat exchange component is arranged in the room, including radiation plates, capillary networks and other radiation heat exchange forms. The heat pump system produces cold water or hot water and transports it to the terminal heat exchange component in the room through the refrigerant circulation system for cooling or heating the room.
在一实施例中，参照图5，图5为本申请除露控制方法的辐射空调水***示意图；辐射空调水***主要包括热泵***、末端换热部件和分集水器，还包括与热泵***和末端换热部件连接的载冷剂循环***，热泵***制取冷水或热水通过载冷剂循环***输送至分集水器，由分集水器切换阀门控制冷水或热水流向开启阀门对应的末端换热部件，用于房间降温或升温。In one embodiment, referring to FIG. 5 , FIG. 5 is a schematic diagram of a radiation air conditioning water system of the dew removal control method of the present application; the radiation air conditioning water system mainly includes a heat pump system, a terminal heat exchange component and a manifold, and also includes a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component. The heat pump system produces cold water or hot water and transports it to the manifold through the refrigerant circulation system. The manifold switching valve controls the cold water or hot water to flow to the terminal heat exchange component corresponding to the open valve, which is used to cool or heat the room.
需要说明的是，在一实施例中，表征末端换热部件的表面温度的温度参数为辐射表面温度，房间内设置有辐射表面温度传感器，控制装置通过辐射表面温度传感器可以接收房间内的辐射表面温度，其中，若同一房间内设置有多个辐射表面温度传感器，获取多个辐射表面温度传感器采集的温度数据。另一方面，末端换热部件的表面温度与流入末端换热部件的介质温度有关。在一实施例中，表征末端换热部件的表面温度的温度参数为辐射空调***的载冷剂温度，载冷剂温度可以为热泵***的出水温度，还可以为末端换热部件的进水温度，在具体实现中，在热泵***的供水口设有温度传感器，获取该温度传感器采集的温度信号，分析该温度信号以获取载冷剂温度；在另一种实现方式中，末端换热部件的进水口设有温度传感器，分析该温度传感器采集的温度信号以获取载冷剂温度。在一实施例中，表征末端换热部件的表面温度的温度参数为辐射空调***的载冷剂温度和辐射表面温度。It should be noted that, in one embodiment, the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the radiation surface temperature, and a radiation surface temperature sensor is provided in the room. The control device can receive the radiation surface temperature in the room through the radiation surface temperature sensor, wherein, if multiple radiation surface temperature sensors are provided in the same room, the temperature data collected by the multiple radiation surface temperature sensors are obtained. On the other hand, the surface temperature of the terminal heat exchange component is related to the temperature of the medium flowing into the terminal heat exchange component. In one embodiment, the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the refrigerant temperature of the radiation air conditioning system, and the refrigerant temperature can be the outlet water temperature of the heat pump system, and can also be the inlet water temperature of the terminal heat exchange component. In a specific implementation, a temperature sensor is provided at the water supply port of the heat pump system, and the temperature signal collected by the temperature sensor is obtained, and the temperature signal is analyzed to obtain the refrigerant temperature; in another implementation, a temperature sensor is provided at the water inlet of the terminal heat exchange component, and the temperature signal collected by the temperature sensor is analyzed to obtain the refrigerant temperature. In one embodiment, the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the refrigerant temperature and the radiation surface temperature of the radiation air conditioning system.
应当理解的是，参照图2，制冷模式下，热泵***内四通换向阀3的第一连通口D与第四连通口E导通、第二连通口C与第三连通口S导通，热泵***制取携带冷量的载冷剂进入到介质循坏回路中并流动至末端换热部件。末端换热部件所处空间是指末端换热部件所部署的房间或室内区域。具体地，末端换热部件所处的房间内设置有露点温度传感器，通过露点温度传感器获取房间内的露点温度，其中，若同一房间内设置有多个露点温度传感器，则获取多个露点温度传感器采集的多个露点温度。It should be understood that, referring to FIG. 2 , in the cooling mode, the first connecting port D and the fourth connecting port E of the four-way reversing valve 3 in the heat pump system are connected, and the second connecting port C and the third connecting port S are connected, and the heat pump system produces a refrigerant carrying cold, which enters the medium circulation loop and flows to the terminal heat exchange component. The space where the terminal heat exchange component is located refers to the room or indoor area where the terminal heat exchange component is deployed. Specifically, a dew point temperature sensor is provided in the room where the terminal heat exchange component is located, and the dew point temperature in the room is obtained by the dew point temperature sensor. If multiple dew point temperature sensors are provided in the same room, multiple dew point temperatures collected by multiple dew point temperature sensors are obtained.
步骤S20：根据所述温度参数和所述露点温度确定所述末端换热部件的辐射表面是否 存在凝露风险。Step S20: Determine whether the radiation surface of the terminal heat exchange component is There is a risk of condensation.
需要说明的是，确定温度参数与露点温度之间的温度差值，将该温度差值与预先设定的参数值进行比较，若表征末端换热部件的表面温度的温度参数与露点温度之间的温度差值小于或等于预先设定的参数值，表征末端换热部件的表面温度与露点温度之间的差距较小，末端换热部件的辐射表面存在凝露风险；相反，若表征末端换热部件的表面温度的温度参数与露点温度之间的温度差值大于预先设定的参数值，表征末端换热部件的表面温度与露点温度之间的差距较大，末端换热部件的辐射表面不存在凝露风险。It should be noted that the temperature difference between the temperature parameter and the dew point temperature is determined, and the temperature difference is compared with the preset parameter value. If the temperature difference between the temperature parameter characterizing the surface temperature of the terminal heat exchange component and the dew point temperature is less than or equal to the preset parameter value, it means that the difference between the surface temperature of the terminal heat exchange component and the dew point temperature is small, and there is a risk of condensation on the radiation surface of the terminal heat exchange component; on the contrary, if the temperature difference between the temperature parameter characterizing the surface temperature of the terminal heat exchange component and the dew point temperature is greater than the preset parameter value, it means that the difference between the surface temperature of the terminal heat exchange component and the dew point temperature is large, and there is no risk of condensation on the radiation surface of the terminal heat exchange component.
进一步地，为了避免偶然因素导致的凝露风险误检测，确定一段时间内征末端换热部件的表面温度的温度参数与露点温度之间的温度差值是否持续小于或等于预先设定的参数值，若是，则确定末端换热部件的辐射表面存在凝露风险。Furthermore, in order to avoid false detection of condensation risk due to accidental factors, it is determined whether the temperature difference between the temperature parameter of the surface temperature of the terminal heat exchange component and the dew point temperature is continuously less than or equal to a preset parameter value over a period of time. If so, it is determined that there is a condensation risk on the radiation surface of the terminal heat exchange component.
以表征末端换热部件的表面温度的温度参数为辐射空调***的载冷剂温度为例，通过以下公式计算温度差值：
D＝TW-Tdew_Rn；Taking the temperature parameter representing the surface temperature of the terminal heat exchange component as the refrigerant temperature of the radiation air conditioning system as an example, the temperature difference is calculated by the following formula:
D = TW - Tdew_Rn;
其中，D表示温度差值；TW表示辐射空调***的载冷剂温度；Tdew_Rn表示露点温度。Wherein, D represents the temperature difference; TW represents the refrigerant temperature of the radiation air conditioning system; Tdew_Rn represents the dew point temperature.
在一实施例中，若当前的温度差值D≤预设值Ds1，则确定存在凝露风险，进入除露控制模式，若当前的温度差值D＞预设值Ds1，则确定不存在凝露风险，继续以制冷模式对应的参数控制热泵***运行。进一步地，在预设时长TIMS1内检测的温度差值D均≤预设值Ds1，则确定存在凝露风险，进入除露控制模式，若TIMS1内温度差值D均≤预设值Ds1不成立，则确定不存在凝露风险，继续以制冷模式对应的参数控制热泵***运行。In one embodiment, if the current temperature difference D ≤ the preset value Ds1, it is determined that there is a condensation risk, and the dew removal control mode is entered. If the current temperature difference D> the preset value Ds1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode. Further, if the temperature difference D detected within the preset time TIMS1 is all ≤ the preset value Ds1, it is determined that there is a condensation risk, and the dew removal control mode is entered. If the temperature difference D within TIMS1 is not ≤ the preset value Ds1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode.
步骤S30：在所述末端换热部件的辐射表面存在凝露风险时，控制所述热泵***切换至制热模式。Step S30: When there is a risk of condensation on the radiation surface of the terminal heat exchange component, control the heat pump system to switch to a heating mode.
应当理解的是，所述方法还包括：获取除露运行模式对应的预设温度值；控制所述热泵***的目标水温调整为所述预设温度值。在末端换热部件所处空间存在凝露风险时，进入除露控制模式，获取除露控制模式对应的预设温度值TWSs，控制热泵***切换为制热模式，且目标水温调整为预设温度值TWSs。其中，预设值Ds1、预设时长TIMS1以及预设水温值TWSs均为开发人员根据具体的机型结合实验测试结果和计算结果在控制装置内设定的参数值。It should be understood that the method also includes: obtaining a preset temperature value corresponding to the dew removal operation mode; and controlling the target water temperature of the heat pump system to be adjusted to the preset temperature value. When there is a risk of condensation in the space where the terminal heat exchange component is located, the dew removal control mode is entered, the preset temperature value TWSs corresponding to the dew removal control mode is obtained, the heat pump system is controlled to switch to the heating mode, and the target water temperature is adjusted to the preset temperature value TWSs. Among them, the preset value Ds1, the preset time TIMS1, and the preset water temperature value TWSs are all parameter values set by the developer in the control device according to the specific model combined with the experimental test results and calculation results.
在具体实现中，参照图2，制冷模式下热泵***内四通换向阀3的第一连通口D与第四连通口E导通、第二连通口C与第三连通口S导通，在确定末端换热部件所处空间存在凝露风险时，切换四通换向阀3的第一连通口D与第二连通口C导通、第三连通口S与第四连通口E导通。从而控制热泵***切换至制热模式，并根据预设水温值TWSs控制节流部件4的开度。In a specific implementation, referring to FIG. 2 , in the cooling mode, the first connecting port D of the four-way reversing valve 3 in the heat pump system is connected to the fourth connecting port E, and the second connecting port C is connected to the third connecting port S. When it is determined that there is a condensation risk in the space where the terminal heat exchange component is located, the first connecting port D of the four-way reversing valve 3 is switched to be connected to the second connecting port C, and the third connecting port S is switched to be connected to the fourth connecting port E. Thus, the heat pump system is controlled to switch to the heating mode, and the opening of the throttling component 4 is controlled according to the preset water temperature value TWSs.
在一实施例中，参照图5，确定热泵***管理的多个房间中存在凝露风险的目标房间，切换至制热模式，通过分集水器将热泵***制取的携带热量的载冷剂输送至目标房间，进行除露操作。In one embodiment, referring to FIG. 5 , a target room with condensation risk among multiple rooms managed by the heat pump system is determined, the heating mode is switched to the heating mode, and the heat-carrying refrigerant produced by the heat pump system is transported to the target room through the manifold to perform a decondensation operation.
本申请中通过在热泵***处于制冷模式下，根据获取到的表征末端换热部件的表面温度的温度参数和末端换热部件所处空间的露点温度确定是否存在凝露风险，在判定存在凝露风险时热泵***切换为制热模式，升高辐射表面温度，烘干辐射表面的凝露水，避免凝露累积导致辐射表面发霉甚至表面装饰层脱落，大大提高辐射空调水***可靠性且改善用户使用体验。In the present application, when the heat pump system is in cooling mode, whether there is a condensation risk is determined based on the temperature parameters characterizing the surface temperature of the terminal heat exchange component and the dew point temperature of the space where the terminal heat exchange component is located. When it is determined that there is a condensation risk, the heat pump system switches to heating mode to increase the radiation surface temperature and dry the condensation water on the radiation surface to avoid condensation accumulation that causes the radiation surface to become moldy or even the surface decorative layer to fall off, thereby greatly improving the reliability of the radiation air conditioning water system and improving the user experience.
进一步地，所述步骤S20，包括：确定所述载冷剂温度与所述露点温度之间的第一温度差值，且/或，确定所述辐射表面温度与所述露点温度之间的第二温度差值；Further, the step S20 includes: determining a first temperature difference between the coolant temperature and the dew point temperature, and/or determining a second temperature difference between the radiation surface temperature and the dew point temperature;
根据第一温度差值和/或所述第二温度差值确定所述末端换热部件的辐射表面是否存在凝露风险。 It is determined whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the first temperature difference and/or the second temperature difference.
进一步地，所述根据第一温度差值和/或所述第二温度差值确定所述末端换热部件是否存在凝露风险的步骤包括：Further, the step of determining whether there is a condensation risk on the terminal heat exchange component according to the first temperature difference and/or the second temperature difference includes:
当所述第一温度差值小于或等于第一预设值时，或，当所述第一温度差值小于或等于第一预设值且持续第一预设时长时，确定所述末端换热部件的辐射表面存在凝露风险；和/或，When the first temperature difference is less than or equal to a first preset value, or when the first temperature difference is less than or equal to the first preset value and lasts for a first preset time, it is determined that there is a condensation risk on the radiation surface of the terminal heat exchange component; and/or,
当所述第二温度差值小于或等于第二预设值时，或，当所述第二温度差值小于或等于第二预设值且持续第二预设时长时，确定所述末端换热部件存在凝露风险。When the second temperature difference is less than or equal to a second preset value, or when the second temperature difference is less than or equal to the second preset value and lasts for a second preset time, it is determined that there is a condensation risk on the terminal heat exchange component.
在一实现方式中，表征末端换热部件的表面温度的温度参数为辐射空调***的载冷剂温度，通过以下公式确定第一温度差值：
D＝TW-Tdew_Rn；In one implementation, the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the refrigerant temperature of the radiant air conditioning system, and the first temperature difference is determined by the following formula:
D = TW - Tdew_Rn;
其中，D表示第一温度差值；TW表示辐射空调***的载冷剂温度；Tdew_Rn表示露点温度。Wherein, D represents the first temperature difference; TW represents the refrigerant temperature of the radiation air-conditioning system; and Tdew_Rn represents the dew point temperature.
在一实施例中，房间内设置有露点温度传感器，通过露点温度传感器获取房间内的露点温度，基于获取到的辐射空调***的载冷剂温度和露点温度计算第一温度差值。In one embodiment, a dew point temperature sensor is provided in the room, and the dew point temperature in the room is obtained by the dew point temperature sensor. The first temperature difference is calculated based on the obtained refrigerant temperature and dew point temperature of the radiation air conditioning system.
在一实施例中，若同一房间内设置有多个露点温度传感器，则获取多个露点温度传感器采集的多个露点温度，分别根据辐射空调***的载冷剂温度和多个露点温度计算得到多个温度差值，从中选取最小值作为第一温度差值。In one embodiment, if multiple dew point temperature sensors are installed in the same room, multiple dew point temperatures collected by the multiple dew point temperature sensors are obtained, and multiple temperature differences are calculated based on the refrigerant temperature of the radiation air-conditioning system and the multiple dew point temperatures, and the minimum value is selected as the first temperature difference.
在一实施例中，若当前的第一温度差值D≤第一预设值Ds1，则确定存在凝露风险，进入除露控制模式，若当前的第一温度差值D＞第一预设值Ds1，则确定不存在凝露风险，继续以制冷模式对应的参数控制热泵***运行。在一实施例中，在第一预设时长TIMS1内检测的第一温度差值D均≤第一预设值Ds1，则确定存在凝露风险，进入除露控制模式，若TIMS1内第一温度差值D均≤第一预设值Ds1不成立，则确定不存在凝露风险，继续以制冷模式对应的参数控制热泵***运行。In one embodiment, if the current first temperature difference D≤the first preset value Ds1, it is determined that there is a condensation risk, and the dew removal control mode is entered; if the current first temperature difference D＞the first preset value Ds1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode. In one embodiment, if the first temperature difference D detected within the first preset time length TIMS1 is all ≤the first preset value Ds1, it is determined that there is a condensation risk, and the dew removal control mode is entered; if the first temperature difference D within TIMS1 is not ≤the first preset value Ds1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode.
在一实现方式中，表征末端换热部件的表面温度的温度参数为辐射表面温度，通过以下公式确定第二温度差值：
S＝Tsur_Rn-Tdew_Rn；In one implementation, the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the radiation surface temperature, and the second temperature difference is determined by the following formula:
S = Tsur_Rn - Tdew_Rn;
其中，S表示第二温度差值；Tsur_Rn表示辐射表面温度；Tdew_Rn表示露点温度。Wherein, S represents the second temperature difference; Tsur_Rn represents the radiation surface temperature; and Tdew_Rn represents the dew point temperature.
在一实施例中，房间内设置有辐射表面温度传感器和露点温度传感器，通过辐射表面温度传感器获取房间内的辐射表面温度，通过露点温度传感器获取房间内的露点温度，基于获取到的辐射表面温度和露点温度计算第二温度差值。In one embodiment, a radiation surface temperature sensor and a dew point temperature sensor are provided in the room, the radiation surface temperature in the room is obtained by the radiation surface temperature sensor, the dew point temperature in the room is obtained by the dew point temperature sensor, and the second temperature difference is calculated based on the obtained radiation surface temperature and dew point temperature.
在一实施例中，若同一房间内设置有多个辐射表面温度传感器和一个露点温度传感器，获取多个辐射表面温度传感器采集的多个辐射表面温度，计算多个辐射表面温度分别与露点温度之间的温度差值，从多个温度差值中选取最小值作为第二温度差值。In one embodiment, if multiple radiation surface temperature sensors and one dew point temperature sensor are installed in the same room, multiple radiation surface temperatures collected by the multiple radiation surface temperature sensors are obtained, the temperature differences between the multiple radiation surface temperatures and the dew point temperature are calculated, and the minimum value is selected from the multiple temperature differences as the second temperature difference.
在一实施例中，若同一房间内设置有多个辐射表面温度传感器和多个露点温度传感器，获取多个辐射表面温度传感器采集的多个辐射表面温度，获取多个露点温度传感器采集的多个露点温度，计算任一辐射表面温度与任一露点温度之间的温度差值，从多个温度差值中选取最小值作为第二温度差值。In one embodiment, if multiple radiation surface temperature sensors and multiple dew point temperature sensors are installed in the same room, multiple radiation surface temperatures collected by the multiple radiation surface temperature sensors are obtained, multiple dew point temperatures collected by the multiple dew point temperature sensors are obtained, the temperature difference between any radiation surface temperature and any dew point temperature is calculated, and the minimum value is selected from the multiple temperature differences as the second temperature difference.
在一实施例中，若当前的第二温度差值S≤第二预设值Ss1，则确定存在凝露风险，进入除露控制模式，若当前的第二温度差值S＞第二预设值Ss1，则确定不存在凝露风险，继续以制冷模式对应的参数控制热泵***运行。在一实施例中，在第二预设时长TIMS2内检测的第二温度差值S均≤第二预设值Ss1，则确定存在凝露风险，进入除露控制模式，若TIMS2内第二温度差值S均≤第二预设值Ss1不成立，则确定不存在凝露风险，继续以制冷模式对应的参数控制热泵***运行。In one embodiment, if the current second temperature difference S ≤ the second preset value Ss1, it is determined that there is a condensation risk, and the dew removal control mode is entered. If the current second temperature difference S> the second preset value Ss1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode. In one embodiment, if the second temperature difference S detected within the second preset time length TIMS2 is all ≤ the second preset value Ss1, it is determined that there is a condensation risk, and the dew removal control mode is entered. If the second temperature difference S within TIMS2 is not ≤ the second preset value Ss1, it is determined that there is no condensation risk, and the heat pump system continues to be controlled by the parameters corresponding to the cooling mode.
在一实现方式中，表征末端换热部件的表面温度的温度参数为辐射空调***的载冷剂温度和辐射表面温度，通过以下公式确定第一温度差值和第二温度差值：
D＝TW-Tdew_Rn；
S＝Tsur_Rn-Tdew_Rn；In one implementation, the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the refrigerant temperature and the radiation surface temperature of the radiation air conditioning system, and the first temperature difference and the second temperature difference are determined by the following formula:
D = TW - Tdew_Rn;
S = Tsur_Rn - Tdew_Rn;
其中，D表示第一温度差值；TW表示辐射空调***的载冷剂温度；Tdew_Rn表示露点温度；S表示第二温度差值；Tsur_Rn表示辐射表面温度；Tdew_Rn表示露点温度。Wherein, D represents the first temperature difference; TW represents the refrigerant temperature of the radiation air-conditioning system; Tdew_Rn represents the dew point temperature; S represents the second temperature difference; Tsur_Rn represents the radiation surface temperature; Tdew_Rn represents the dew point temperature.
在一实施例中，若当前的D≤第一预设值Ds1或者S≤第二预设值Ss1，则确定存在凝露风险，进入除露控制模式，若当前的D＞第一预设值Ds1且S＞第二预设值Ss1，则确定不存在凝露风险，继续以制冷模式对应的参数控制热泵***运行。在一实施例中，在第一预设时长TIMS1内检测的D均≤第一预设值Ds1或在第二预设时长TIMS2内检测的S均≤第二预设值Ds2，则确定存在凝露风险，进入除露控制模式，若TIMS1内D均≤第一预设值Ds1不成立且TIMS2内检测的S均≤第二预设值Ds2不成立，则确定不存在凝露风险，继续以制冷模式对应的参数控制热泵***运行。In one embodiment, if the current D≤the first preset value Ds1 or S≤the second preset value Ss1, it is determined that there is a condensation risk and the dew removal control mode is entered. If the current D＞the first preset value Ds1 and S＞the second preset value Ss1, it is determined that there is no condensation risk and the heat pump system continues to be controlled with the parameters corresponding to the cooling mode. In one embodiment, if the D detected within the first preset time length TIMS1 is ≤the first preset value Ds1 or the S detected within the second preset time length TIMS2 is ≤the second preset value Ds2, it is determined that there is a condensation risk and the dew removal control mode is entered. If the D within TIMS1 is not ≤the first preset value Ds1 and the S detected within TIMS2 is not ≤the second preset value Ds2, it is determined that there is no condensation risk and the heat pump system continues to be controlled with the parameters corresponding to the cooling mode.
应当理解的是，仅根据辐射表面温度与露点温度判断辐射表面是否存在凝露风险，进行***保护停机和风险警示的方式在面对房间湿度较大的场景时，可能出现***长时间因判断凝露风险而保护停机，导致用户无法正常使用空调，而且如果温度传感器检测存在偏移，即便出现凝露保护停机，因辐射表面温度较低，仍可能产生凝露水，长时间累积可能导致辐射表面发霉甚至装饰层脱落，影响美观。而本申请中提出冗余的凝露风险确定方式，根据辐射空调***的载冷剂温度与露点温度之间的温度差值，和/或，辐射表面温度与露点温度之间温度差值判断是否存在凝露风险，避免了凝露风险误判断，即便是辐射表面温度传感器存在偏移，可以根据载冷剂温度和露点温度确定是否存在凝露风险，增加了***的可靠性。在判定存在凝露风险时热泵***切换为制热模式，升高辐射表面温度，烘干辐射表面的凝露水，避免凝露累积导致辐射表面发霉甚至表面装饰层脱落，使得除露控制更加准确和有效。It should be understood that the method of judging whether there is a condensation risk on the radiation surface only based on the radiation surface temperature and the dew point temperature, and performing system protection shutdown and risk warning, when facing a scene with high room humidity, the system may be shut down for a long time due to the judgment of condensation risk, resulting in the user being unable to use the air conditioner normally. Moreover, if the temperature sensor detection is offset, even if the condensation protection shutdown occurs, condensation water may still be generated due to the low temperature of the radiation surface. Long-term accumulation may cause the radiation surface to mold or even the decorative layer to fall off, affecting the appearance. However, the redundant condensation risk determination method is proposed in this application. The condensation risk is judged based on the temperature difference between the refrigerant temperature and the dew point temperature of the radiation air conditioning system, and/or the temperature difference between the radiation surface temperature and the dew point temperature, thereby avoiding the misjudgment of the condensation risk. Even if the radiation surface temperature sensor is offset, the condensation risk can be determined based on the refrigerant temperature and the dew point temperature, thereby increasing the reliability of the system. When it is determined that there is a condensation risk, the heat pump system switches to the heating mode, increases the radiation surface temperature, and dries the condensation water on the radiation surface, thereby avoiding the accumulation of condensation and causing the radiation surface to mold or even the surface decorative layer to fall off, making the dew removal control more accurate and effective.
参考图6，图6为本申请除露控制方法一实施例的流程示意图。Refer to FIG. 6 , which is a flow chart of an embodiment of a dew removal control method of the present application.
进一步地，所述步骤S30之后，所述方法还包括：Furthermore, after step S30, the method further includes:
步骤S40：当所述热泵***运行达到预设条件时，控制所述热泵***切换至所述制冷模式；Step S40: When the operation of the heat pump system reaches a preset condition, controlling the heat pump system to switch to the cooling mode;
其中，所述预设条件包括下列至少一个：The preset condition includes at least one of the following:
目标温差值大于第三预设值，或，目标温差值大于第三预设值且持续第三预设时长，所述目标温差值为表征所述末端换热部件的表面温度的当前温度参数与所述末端换热部件所处空间的当前露点温度之间的温度差值；The target temperature difference value is greater than a third preset value, or the target temperature difference value is greater than the third preset value and lasts for a third preset time, and the target temperature difference value is the temperature difference between the current temperature parameter characterizing the surface temperature of the terminal heat exchange component and the current dew point temperature of the space where the terminal heat exchange component is located;
所述制热模式运行的累积时长大于或等于第四预设时长；The accumulated operation time of the heating mode is greater than or equal to a fourth preset time;
所述末端换热部件所处空间的环境温度与设定温度之间的温度差值大于或等于第四预设值。The temperature difference between the ambient temperature of the space where the terminal heat exchange component is located and the set temperature is greater than or equal to a fourth preset value.
进一步地，所述表征所述末端换热部件的表面温度的当前温度参数包括所述辐射空调***的载冷剂温度和/或所述末端换热部件的辐射表面温度。Further, the current temperature parameter characterizing the surface temperature of the terminal heat exchange component includes a refrigerant temperature of the radiation air conditioning system and/or a radiation surface temperature of the terminal heat exchange component.
在一种实现方式中，表征末端换热部件的表面温度的当前温度参数包括辐射空调***的载冷剂温度，通过以下公式确定目标温度差值：
M1＝TW-Tdew_Rn；In one implementation, the current temperature parameter characterizing the surface temperature of the terminal heat exchange component includes the refrigerant temperature of the radiant air conditioning system, and the target temperature difference is determined by the following formula:
M1 = TW - Tdew_Rn;
其中，M1表示目标温度差值；TW表示辐射空调***的载冷剂温度；Tdew_Rn表示露点温度。Wherein, M1 represents the target temperature difference; TW represents the refrigerant temperature of the radiation air-conditioning system; and Tdew_Rn represents the dew point temperature.
在一实施例中，若目标温度差值M1大于第三预设值Ds2，则辐射空调***退出除露运行模式，控制热泵***切换为制冷模式。在一实施例中，检测到第三预设时长TIMS3内目标温度差值M1持续大于第三预设值DS2，则辐射空调***退出除露运行模式，控制热泵***切换为制冷模式。In one embodiment, if the target temperature difference M1 is greater than the third preset value Ds2, the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode. In one embodiment, if it is detected that the target temperature difference M1 is continuously greater than the third preset value DS2 within the third preset time length TIMS3, the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode.
在一种实现方式中，表征末端换热部件的表面温度的当前温度参数包括末端换热部件 的辐射表面温度，通过以下公式确定目标温度差值：
M2＝Tsur_Rn-Tdew_Rn；In one implementation, the current temperature parameter characterizing the surface temperature of the terminal heat exchange component includes The target temperature difference is determined by the following formula:
M2 = Tsur_Rn - Tdew_Rn;
其中，M2表示目标温度差值；Tsur_Rn表示辐射表面温度；Tdew_Rn表示露点温度。Wherein, M2 represents the target temperature difference; Tsur_Rn represents the radiation surface temperature; and Tdew_Rn represents the dew point temperature.
在一实施例中，若目标温度差值M2大于第三预设值Ss2，则辐射空调***退出除露运行模式，控制热泵***切换为制冷模式。在一实施例中，检测到第三预设时长TIMS4内目标温度差值M2持续大于第三预设值Ss2，则辐射空调***退出除露运行模式，控制热泵***切换为制冷模式。In one embodiment, if the target temperature difference M2 is greater than the third preset value Ss2, the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode. In one embodiment, if it is detected that the target temperature difference M2 is continuously greater than the third preset value Ss2 within the third preset time length TIMS4, the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode.
在一种实现方式中，表征末端换热部件的表面温度的当前温度参数包括辐射空调***的载冷剂温度和末端换热部件的辐射表面温度，通过以下公式确定目标温度差值：
M1＝TW-Tdew_Rn；
M2＝Tsur_Rn-Tdew_Rn；In one implementation, the current temperature parameter characterizing the surface temperature of the terminal heat exchange component includes the refrigerant temperature of the radiant air conditioning system and the radiant surface temperature of the terminal heat exchange component, and the target temperature difference is determined by the following formula:
M1 = TW - Tdew_Rn;
M2 = Tsur_Rn - Tdew_Rn;
其中，M1、M2表示目标温度差值；TW表示辐射空调***的载冷剂温度；Tdew_Rn表示露点温度；Tsur_Rn表示辐射表面温度。Among them, M1 and M2 represent the target temperature difference; TW represents the refrigerant temperature of the radiation air-conditioning system; Tdew_Rn represents the dew point temperature; and Tsur_Rn represents the radiation surface temperature.
在一实施例中，若目标温度差值M1大于第三预设值Ds2且目标温度差值M2大于第三预设值Ss2，则辐射空调***退出除露运行模式，控制热泵***切换为制冷模式。在一实施例中，检测到第三预设时长TIMS3内目标温度差值M1持续大于第三预设值DS2且检测到第三预设时长TIMS4内目标温度差值M2持续大于第三预设值Ss2，则辐射空调***退出除露运行模式，控制热泵***切换为制冷模式。In one embodiment, if the target temperature difference M1 is greater than the third preset value Ds2 and the target temperature difference M2 is greater than the third preset value Ss2, the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode. In one embodiment, if it is detected that the target temperature difference M1 is continuously greater than the third preset value DS2 within the third preset time length TIMS3 and the target temperature difference M2 is continuously greater than the third preset value Ss2 within the third preset time length TIMS4, the radiation air conditioning system exits the dew removal operation mode and controls the heat pump system to switch to the cooling mode.
应当理解的是，参照图7，图7为本申请除露控制方法的除露控制流程示意图；热泵***为冷热水机组，冷热水机组处于制冷模式且开机，获取机组供水温度TW、房间露点温度Tdew_Rn、房间环境温度T1_Rn(房间空气温度)、房间设定温度T1S_Rn，判断是否接收到房间辐射表面温度Tsur_Rn，若是，则计算供水温度与露点温度之间的温度差值D、辐射表面温度与露点温度之间的温度差值S，并基于D和S判断是否存在凝露风险。进一步地，若检测到预设时长TIMS3内供水温度与露点温度之间的目标温度差值M1持续大于预设值DS3且预设时长TIMS4内辐射表面温度与露点温度之间的目标温度差值M2持续大于预设值Ss2，则辐射空调水***退出除露运行模式，控制冷热水机组切换为制冷模式，并根据除露运行前的制冷目标值控制冷热水机组目标水温。It should be understood that, with reference to FIG. 7, FIG. 7 is a schematic diagram of the dew removal control process of the dew removal control method of the present application; the heat pump system is a hot and cold water unit, the hot and cold water unit is in cooling mode and turned on, the unit water supply temperature TW, the room dew point temperature Tdew_Rn, the room ambient temperature T1_Rn (room air temperature), and the room set temperature T1S_Rn are obtained, and it is determined whether the room radiation surface temperature Tsur_Rn is received. If so, the temperature difference D between the water supply temperature and the dew point temperature and the temperature difference S between the radiation surface temperature and the dew point temperature are calculated, and whether there is a condensation risk based on D and S. Further, if it is detected that the target temperature difference M1 between the water supply temperature and the dew point temperature within the preset time TIMS3 is continuously greater than the preset value DS3 and the target temperature difference M2 between the radiation surface temperature and the dew point temperature within the preset time TIMS4 is continuously greater than the preset value Ss2, then the radiation air conditioning water system exits the dew removal operation mode, controls the hot and cold water unit to switch to the cooling mode, and controls the target water temperature of the hot and cold water unit according to the cooling target value before the dew removal operation.
需要说明的是，参照图7，若未接收到房间辐射表面温度Tsur_Rn，则计算供水温度与露点温度之间的温度差值D，并基于D判断是否存在凝露风险。进一步地，若检测到预设时长TIMS3内供水温度与露点温度之间的目标温度差值M1持续大于预设值DS3，则辐射空调水***退出除露运行模式，控制冷热水机组切换为制冷模式，并根据除露运行前的制冷目标值控制冷热水机组目标水温。It should be noted that, referring to FIG7 , if the room radiation surface temperature Tsur_Rn is not received, the temperature difference D between the water supply temperature and the dew point temperature is calculated, and whether there is a condensation risk is determined based on D. Further, if it is detected that the target temperature difference M1 between the water supply temperature and the dew point temperature within the preset time TIMS3 is continuously greater than the preset value DS3, the radiation air conditioning water system exits the dew removal operation mode, controls the hot and cold water units to switch to the cooling mode, and controls the target water temperature of the hot and cold water units according to the cooling target value before the dew removal operation.
在一实施例中，参照图7，所述步骤S10，还包括：在冷热水机组处于制冷模式时，还获取房间环境温度T1_Rn和房间设定温度T1S_Rn。在所述步骤S30之后，所述方法还包括：若检测到房间环境温度与房间设定温度之间的温度差值大于或等于第四预设值Rs，则辐射空调水***退出除露运行模式，控制冷热水机组切换为制冷模式，并根据除露运行前的制冷目标值控制冷热水机组目标水温。In one embodiment, referring to FIG. 7 , the step S10 further includes: when the hot and cold water unit is in the cooling mode, the room environment temperature T1_Rn and the room setting temperature T1S_Rn are also obtained. After the step S30, the method further includes: if it is detected that the temperature difference between the room environment temperature and the room setting temperature is greater than or equal to the fourth preset value Rs, the radiation air conditioning water system exits the dew removal operation mode, controls the hot and cold water unit to switch to the cooling mode, and controls the target water temperature of the hot and cold water unit according to the cooling target value before the dew removal operation.
在一实施例中，参照图7，在所述步骤S30之后，所述方法还包括：若冷热水机组制热模式运行累积时长TIM≥第四预设时长TIMS5，则辐射空调水***退出除露运行模式，控制冷热水机组切换为制冷模式，并根据除露运行前的制冷目标值控制冷热水机组目标水温。在一实施例中，冷热水机组制热模式运行累积时长等同于辐射空调***的除露运行模式累积时长。In one embodiment, referring to FIG. 7 , after step S30, the method further includes: if the cumulative operation time TIM of the heating mode of the cold and hot water unit is greater than or equal to the fourth preset time TIMS5, the radiation air conditioning water system exits the dew removal operation mode, controls the cold and hot water unit to switch to the cooling mode, and controls the target water temperature of the cold and hot water unit according to the cooling target value before the dew removal operation. In one embodiment, the cumulative operation time of the heating mode of the cold and hot water unit is equal to the cumulative operation time of the dew removal operation mode of the radiation air conditioning system.
其中，第一预设时长TIMS1、第一预设值Ds1、第二预设时长TIMS2、第二预设值Ss1、第三预设时长TIMS3(TIMS4)、第三预设值DS3(Ss2)、第四预设值Rs、第四预设时长TIMS5均为开发人员根据具体的机型结合实验测试结果和计算结果在控制装置内设定 的参数值。Among them, the first preset time length TIMS1, the first preset value Ds1, the second preset time length TIMS2, the second preset value Ss1, the third preset time length TIMS3 (TIMS4), the third preset value DS3 (Ss2), the fourth preset value Rs, and the fourth preset time length TIMS5 are all set by the developer in the control device according to the specific model combined with the experimental test results and the calculation results. Parameter value.
进一步地，定义第一目标温度为所述热泵***在所述制冷模式下的载冷剂目标温度，所述控制所述热泵***切换至制热模式的步骤包括：Further, the first target temperature is defined as the target temperature of the refrigerant of the heat pump system in the cooling mode, and the step of controlling the heat pump system to switch to the heating mode includes:
控制所述热泵***切换至所述制热模式，并根据第二目标温度控制所述热泵***运行，所述第一目标温度小于所述第二目标温度；且/或，Controlling the heat pump system to switch to the heating mode, and controlling the heat pump system to operate according to a second target temperature, wherein the first target temperature is lower than the second target temperature; and/or,
定义第一目标温度为所述热泵***在所述制冷模式下的载冷剂目标温度，所述控制所述热泵***切换至所述制冷模式的步骤包括：The first target temperature is defined as the target temperature of the refrigerant of the heat pump system in the cooling mode. The step of controlling the heat pump system to switch to the cooling mode includes:
控制所述热泵***切换至所述制冷模式，并根据所述第一目标温度控制所述热泵***运行。The heat pump system is controlled to switch to the cooling mode, and the heat pump system is controlled to operate according to the first target temperature.
应当理解的是，在制冷模式下，辐射空调***根据环境设定温度确定载冷剂对应的第一目标温度。在一实施例中，环境设定温度可以为用户通过遥控器、控制面板等设置的室内需求的目标温度；环境设定温度可以为用户设定的运行模式所对应的模式温度；环境设定温度可以为基于当前环境信息计算得到的温度。提前设置有辐射空调***除露控制模式对应的预设温度值TWSs，即第二目标温度为TWSs，在确定末端换热部件存在凝露风险时，控制热泵***切换至所述制热模式，并根据预设温度值TWSs控制热泵***运行，在确定全部消除末端换热部件均已消除凝露风险时，控制热泵***切换至制冷模式，并根据第一目标温度控制热泵***运行，即根据辐射空调***除露运行前的制冷目标值控制热泵***目标载冷剂温度。It should be understood that in the cooling mode, the radiation air conditioning system determines the first target temperature corresponding to the refrigerant according to the ambient setting temperature. In one embodiment, the ambient setting temperature can be the target temperature of the indoor demand set by the user through the remote control, control panel, etc.; the ambient setting temperature can be the mode temperature corresponding to the operation mode set by the user; the ambient setting temperature can be the temperature calculated based on the current environmental information. A preset temperature value TWSs corresponding to the dew removal control mode of the radiation air conditioning system is set in advance, that is, the second target temperature is TWSs. When it is determined that there is a condensation risk in the terminal heat exchange component, the heat pump system is controlled to switch to the heating mode, and the heat pump system is controlled to operate according to the preset temperature value TWSs. When it is determined that all the terminal heat exchange components have eliminated the condensation risk, the heat pump system is controlled to switch to the cooling mode, and the heat pump system is controlled to operate according to the first target temperature, that is, the target refrigerant temperature of the heat pump system is controlled according to the cooling target value before the dew removal operation of the radiation air conditioning system.
本申请中在热泵***运行达到任一预设条件时，控制热泵***切换至制冷模式，避免了热泵***长时间处于制热模式造成室内环境温度波动大，使得除露控制更加准确和有效，降低凝露风险同时提高室内舒适性。In the present application, when the operation of the heat pump system reaches any preset condition, the heat pump system is controlled to switch to cooling mode, thereby avoiding the heat pump system being in heating mode for a long time and causing large fluctuations in indoor ambient temperature, making dew removal control more accurate and effective, reducing the risk of condensation while improving indoor comfort.
参考图8，图8为本申请除露控制方法一实施例的流程示意图。Refer to FIG. 8 , which is a flow chart of an embodiment of a dew removal control method of the present application.
基于上述第一实施例，本申请除露控制方法中所述辐射空调***包括多个末端换热部件和分集水器，所述分集水器包括多个分水阀，各个所述末端换热部件均与对应的分水阀连接，所述分水阀用于打开或关闭对应的末端换热部件的载冷剂流入通道；Based on the above first embodiment, the radiation air conditioning system in the dew removal control method of the present application includes a plurality of terminal heat exchange components and a manifold, the manifold includes a plurality of water diversion valves, each of the terminal heat exchange components is connected to a corresponding water diversion valve, and the water diversion valve is used to open or close the coolant inflow channel of the corresponding terminal heat exchange component;
所述步骤S30之后，所述方法还包括：After step S30, the method further includes:
步骤S301：确定所述多个末端换热部件中存在凝露风险的目标末端换热部件。Step S301: determining a target terminal heat exchange component having a condensation risk among the plurality of terminal heat exchange components.
可以理解的是，控制装置根据各个房间内末端换热部件对应的温度参数分别确定各个末端换热部件是否存在凝露风险，根据分析结果确定存在凝露风险的目标末端换热部件。例如，热泵***连接有编号分别为1、2、3、4的四个末端换热部件，分别部署在房间1、房间2、房间3和房间4，在控制装置确定根据各个房间末端换热部件对应的温度参数确定末端换热部件2和末端换热部件4存在凝露风险时，确定目标末端换热部件为2和4。It can be understood that the control device determines whether each terminal heat exchange component has a condensation risk according to the temperature parameters corresponding to the terminal heat exchange components in each room, and determines the target terminal heat exchange component with condensation risk according to the analysis results. For example, the heat pump system is connected to four terminal heat exchange components numbered 1, 2, 3, and 4, which are respectively deployed in room 1, room 2, room 3, and room 4. When the control device determines that terminal heat exchange components 2 and terminal heat exchange components 4 have a condensation risk according to the temperature parameters corresponding to the terminal heat exchange components in each room, the target terminal heat exchange components are determined to be 2 and 4.
步骤S302：开启所述目标末端换热部件连接的目标分水阀，并关闭除所述目标分水阀外的其他分水阀。Step S302: opening the target water diversion valve connected to the target terminal heat exchange component, and closing other water diversion valves except the target water diversion valve.
需要说明的是，参照图5，分集水器包括多个分水阀，各个末端换热部件均与对应的分水阀连接，通过分集水器对热泵***制取的携带冷量或热量的载冷剂进行分配。本申请中从多个分水阀中确定与目标末端换热部件连接的目标分水阀，仅将存在凝露风险的末端换热部件所对应的分水阀打开，其他保持关闭，从而通过分集水器有针对性地向目标末端换热部件输送制取的携带热量的载冷剂，从而对目标末端换热部件进行表面除露处理。It should be noted that, referring to FIG. 5 , the manifold includes a plurality of water distribution valves, and each terminal heat exchange component is connected to a corresponding water distribution valve, and the refrigerant carrying cold or heat produced by the heat pump system is distributed through the manifold. In the present application, the target water distribution valve connected to the target terminal heat exchange component is determined from the plurality of water distribution valves, and only the water distribution valve corresponding to the terminal heat exchange component with the risk of condensation is opened, and the others are kept closed, so that the produced refrigerant carrying heat is delivered to the target terminal heat exchange component in a targeted manner through the manifold, so as to perform surface dew removal treatment on the target terminal heat exchange component.
进一步地，所述步骤S302之后，所述方法还包括：检测每个所述目标末端换热部件是否已消除凝露风险，并返回执行所述步骤S301，直至所有所述末端换热部件均已消除凝露风险。Furthermore, after step S302, the method further includes: detecting whether the condensation risk of each of the target terminal heat exchange components has been eliminated, and returning to execute step S301 until the condensation risk of all the terminal heat exchange components has been eliminated.
需要说明的是，在一实施例中，辐射空调***每隔一段时间执行一次检测每个所述目标末端换热部件是否已消除凝露风险的步骤。It should be noted that, in one embodiment, the radiation air conditioning system performs a step of detecting whether the condensation risk has been eliminated for each of the target terminal heat exchange components at regular intervals.
在具体实现中，辐射空调***检测到全部目标末端换热部件中存在任一未消除凝露风 险的末端换热部件时，返回执行步骤S301，重新确定存在凝露风险的一个或多个末端换热部件，开启存在凝露风险的末端换热部件连接的分水阀，辐射空调***检测到全部目标末端换热部件均已消除凝露风险时，关闭目标末端换热部件连接的目标分水阀。In the specific implementation, the radiant air conditioning system detects that any unremoved condensation air exists in all target terminal heat exchange components. When the terminal heat exchange component with condensation risk is determined, the process returns to step S301, re-determines one or more terminal heat exchange components with condensation risk, opens the water diversion valve connected to the terminal heat exchange component with condensation risk, and closes the target water diversion valve connected to the target terminal heat exchange component when the radiation air-conditioning system detects that the condensation risk of all target terminal heat exchange components has been eliminated.
在另一种实现方式中，当多个目标末端换热部件所处空间存在凝露风险时，多个目标分水阀处于开启状态，在检测到当前末端换热部件所处空间消除凝露风险时，关闭对应的当前分水阀，其中，当前末端换热部件为多个目标末端换热部件中的任意一个或多个末端换热部件。In another implementation, when there is a condensation risk in the space where multiple target terminal heat exchange components are located, multiple target water diversion valves are in an open state, and when it is detected that the condensation risk in the space where the current terminal heat exchange component is located is eliminated, the corresponding current water diversion valve is closed, wherein the current terminal heat exchange component is any one or more terminal heat exchange components among the multiple target terminal heat exchange components.
具体地，检测目标末端换热部件是否已消除凝露风险的方式包括以下至少一个：Specifically, the method of detecting whether the condensation risk of the target terminal heat exchange component has been eliminated includes at least one of the following:
1、表征目标末端换热部件的表面温度的当前温度参数与目标末端换热部件所处空间的当前露点温度之间的温度差值大于第三预设值，或，表征目标末端换热部件的表面温度的当前温度参数与目标末端换热部件所处空间的当前露点温度之间的温度差值大于第三预设值且持续第三预设时长。具体地，表征目标末端换热部件的表面温度的当前温度参数包括辐射空调***的载冷剂温度和/或目标末端换热部件的辐射表面温度。1. The temperature difference between the current temperature parameter representing the surface temperature of the target terminal heat exchange component and the current dew point temperature of the space where the target terminal heat exchange component is located is greater than a third preset value, or the temperature difference between the current temperature parameter representing the surface temperature of the target terminal heat exchange component and the current dew point temperature of the space where the target terminal heat exchange component is located is greater than the third preset value and lasts for a third preset time. Specifically, the current temperature parameter representing the surface temperature of the target terminal heat exchange component includes the refrigerant temperature of the radiant air conditioning system and/or the radiant surface temperature of the target terminal heat exchange component.
2、制热模式运行的累积时长大于或等于第四预设时长，则确定所有末端换热部件均已消除凝露风险。2. If the cumulative operation time of the heating mode is greater than or equal to the fourth preset time, it is determined that the condensation risk of all terminal heat exchange components has been eliminated.
3、目标末端换热部件所处空间的环境温度与设定温度之间的温度差值大于或等于第四预设值，则确定目标末端换热部件已消除凝露风险。3. If the temperature difference between the ambient temperature of the space where the target terminal heat exchange component is located and the set temperature is greater than or equal to a fourth preset value, it is determined that the target terminal heat exchange component has eliminated the condensation risk.
进一步地，所述步骤S302之后，所述方法还包括：当所述热泵***切换至制冷模式时，确定所述制冷模式对应的分水阀目标状态；根据所述分水阀目标状态控制多个分水阀运行。Furthermore, after step S302, the method further includes: when the heat pump system switches to a cooling mode, determining a target state of a water diversion valve corresponding to the cooling mode; and controlling the operation of a plurality of water diversion valves according to the target state of the water diversion valve.
在具体实现中，若检测到所有末端换热部件均已消除凝露风险，则退出除露控制运行模式，控制热泵***切换至制冷模式，并根据制冷模式对应的分水阀目标状态控制多个分水阀运行。在一实施例中，制冷模式对应的分水阀目标状态对应于除露运行前多个分水阀的开关状态。In a specific implementation, if it is detected that all terminal heat exchange components have eliminated the risk of condensation, the dew removal control operation mode is exited, the heat pump system is controlled to switch to the cooling mode, and the operation of multiple water diverter valves is controlled according to the target state of the water diverter valve corresponding to the cooling mode. In one embodiment, the target state of the water diverter valve corresponding to the cooling mode corresponds to the switch state of the multiple water diverter valves before the dew removal operation.
在具体实现中，参照图2，除露控制运行模式下热泵***四通换向阀3的第一连通口D与第二连通口C导通、第三连通口S与第四连通口E导通，在所有末端换热部件均已消除凝露风险后，控制四通换向阀3的第一连通口D与第四连通口E导通、第二连通口C与第三连通口S导通，从而控制热泵***切换至制冷模式。In a specific implementation, referring to FIG. 2 , in the dew removal control operation mode, the first connecting port D and the second connecting port C of the four-way reversing valve 3 of the heat pump system are connected, and the third connecting port S and the fourth connecting port E are connected. After the condensation risk of all terminal heat exchange components has been eliminated, the first connecting port D and the fourth connecting port E of the four-way reversing valve 3 are controlled to be connected, and the second connecting port C and the third connecting port S are controlled to be connected, so as to control the heat pump system to switch to the cooling mode.
本申请确定多个末端换热部件的辐射表面是否存在凝露风险，并在确定存在凝露风险时热泵***切换为制热模式，将制取的携带热量的载冷剂通过分集水器的分水阀输送至存在凝露风险的目标末端换热部件，实现了除露精准控制，升高辐射表面温度，烘干辐射表面的凝露水，避免凝露累积导致辐射表面发霉甚至表面装饰层脱落，大大提高辐射空调水***可靠性且改善用户使用体验。The present application determines whether there is a condensation risk on the radiation surfaces of multiple terminal heat exchange components, and when it is determined that there is a condensation risk, the heat pump system switches to heating mode, and the prepared heat-carrying refrigerant is transported to the target terminal heat exchange component with condensation risk through the water diversion valve of the manifold, thereby achieving precise control of dew removal, increasing the radiation surface temperature, and drying the condensation water on the radiation surface, thereby avoiding condensation accumulation that causes mold on the radiation surface and even shedding of the surface decorative layer, greatly improving the reliability of the radiation air conditioning water system and improving the user experience.
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除露控制程序，所述除露控制程序被处理器执行时实现如上文所述的除露控制方法。In addition, an embodiment of the present application further proposes a storage medium, on which a dew removal control program is stored. When the dew removal control program is executed by a processor, the dew removal control method as described above is implemented.
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。Since 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.
参照图9，图9为本申请除露控制装置一实施例的结构框图。Refer to FIG. 9 , which is a structural block diagram of an embodiment of a dew removal control device of the present application.
如图9所示，本申请实施例提出的除露控制装置应用于辐射空调***，所述辐射空调***包括热泵***、末端换热部件以及与所述热泵***和所述末端换热部件连接的载冷剂循环***，所述除露控制装置包括：As shown in FIG9 , the dew removal control device proposed in the embodiment of the present application is applied to a radiant air conditioning system, wherein the radiant air conditioning system includes a heat pump system, a terminal heat exchange component, and a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component. The dew removal control device includes:
获取模块10，用于在所述热泵***处于制冷模式时，获取表征所述末端换热部件的表面温度的温度参数和所述末端换热部件所处空间的露点温度。The acquisition module 10 is used to acquire the temperature parameter representing the surface temperature of the terminal heat exchange component and the dew point temperature of the space where the terminal heat exchange component is located when the heat pump system is in a cooling mode.
可以理解的是，本申请的辐射空调***中包含一个或多个末端换热部件，在一实施例中，本申请以辐射空调***为辐射空调水***为例进行说明，参照图4，图4为本申请除 露控制方法的辐射空调水***第一示意图，辐射空调水***主要包括热泵***和末端换热部件两部分，还包括与热泵***和末端换热部件连接的载冷剂循环***，末端换热部件设置于房间，包括辐射板、毛细管网等辐射换热形式，热泵***制取冷水或热水通过载冷剂循环***输送至房间内末端换热部件，用于房间降温或升温。It can be understood that the radiation air conditioning system of the present application includes one or more terminal heat exchange components. In one embodiment, the present application takes the radiation air conditioning system as a radiation air conditioning water system as an example for explanation, referring to FIG. 4, FIG. 4 is a diagram of the present application except The first schematic diagram of the radiation air conditioning water system of the exposure control method, the radiation air conditioning water system mainly includes two parts: a heat pump system and a terminal heat exchange component, and also includes a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component. The terminal heat exchange component is arranged in the room, including radiation plates, capillary networks and other radiation heat exchange forms. The heat pump system produces cold water or hot water and transports it to the terminal heat exchange component in the room through the refrigerant circulation system for cooling or heating the room.
在一实施例中，参照图5，图5为本申请除露控制方法的辐射空调水***示意图；辐射空调水***主要包括热泵***、末端换热部件和分集水器，还包括与热泵***和末端换热部件连接的载冷剂循环***，热泵***制取冷水或热水通过载冷剂循环***输送至分集水器，由分集水器切换阀门控制冷水或热水流向开启阀门对应的末端换热部件，用于房间降温或升温。In one embodiment, referring to FIG. 5 , FIG. 5 is a schematic diagram of a radiation air conditioning water system of the dew removal control method of the present application; the radiation air conditioning water system mainly includes a heat pump system, a terminal heat exchange component and a manifold, and also includes a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component. The heat pump system produces cold water or hot water and transports it to the manifold through the refrigerant circulation system. The manifold switching valve controls the cold water or hot water to flow to the terminal heat exchange component corresponding to the open valve, which is used to cool or heat the room.
需要说明的是，在一实施例中，表征末端换热部件的表面温度的温度参数为辐射表面温度，房间内设置有辐射表面温度传感器，控制装置通过辐射表面温度传感器可以接收房间内的辐射表面温度，其中，若同一房间内设置有多个辐射表面温度传感器，获取多个辐射表面温度传感器采集的温度数据。另一方面，末端换热部件的表面温度与流入末端换热部件的介质温度有关。在一实施例中，表征末端换热部件的表面温度的温度参数为辐射空调***的载冷剂温度，辐射空调***的载冷剂温度可以为热泵***的出水温度，还可以为末端换热部件的进水温度，在具体实现中，在热泵***的供水口设有温度传感器，获取该温度传感器采集的温度信号，分析该温度信号以获取载冷剂温度；在另一种实现方式中，末端换热部件的进水口设有温度传感器，分析该温度传感器采集的温度信号以获取载冷剂温度。在一实施例中，表征末端换热部件的表面温度的温度参数为辐射空调***的载冷剂温度和辐射表面温度。It should be noted that, in one embodiment, the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the radiation surface temperature, and a radiation surface temperature sensor is provided in the room. The control device can receive the radiation surface temperature in the room through the radiation surface temperature sensor, wherein, if multiple radiation surface temperature sensors are provided in the same room, the temperature data collected by the multiple radiation surface temperature sensors are obtained. On the other hand, the surface temperature of the terminal heat exchange component is related to the temperature of the medium flowing into the terminal heat exchange component. In one embodiment, the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the refrigerant temperature of the radiation air conditioning system, and the refrigerant temperature of the radiation air conditioning system can be the outlet water temperature of the heat pump system, and can also be the inlet water temperature of the terminal heat exchange component. In a specific implementation, a temperature sensor is provided at the water supply port of the heat pump system, and the temperature signal collected by the temperature sensor is obtained, and the temperature signal is analyzed to obtain the refrigerant temperature; in another implementation, a temperature sensor is provided at the water inlet of the terminal heat exchange component, and the temperature signal collected by the temperature sensor is analyzed to obtain the refrigerant temperature. In one embodiment, the temperature parameter characterizing the surface temperature of the terminal heat exchange component is the refrigerant temperature and the radiation surface temperature of the radiation air conditioning system.
应当理解的是，参照图2，制冷模式下，热泵***内四通换向阀3的第一连通口D与第四连通口E导通、第二连通口C与第三连通口S导通，热泵***制取携带冷量的载冷剂进入到介质循坏回路中并流动至末端换热部件。末端换热部件所处空间是指末端换热部件所部署的房间或室内区域。具体地，末端换热部件所处的房间内设置有露点温度传感器，通过露点温度传感器获取房间内的露点温度，其中，若同一房间内设置有多个露点温度传感器，则获取多个露点温度传感器采集的多个露点温度。It should be understood that, with reference to FIG. 2 , in the cooling mode, the first connecting port D and the fourth connecting port E of the four-way reversing valve 3 in the heat pump system are connected, and the second connecting port C and the third connecting port S are connected, and the heat pump system produces a refrigerant carrying cold, which enters the medium circulation loop and flows to the terminal heat exchange component. The space where the terminal heat exchange component is located refers to the room or indoor area where the terminal heat exchange component is deployed. Specifically, a dew point temperature sensor is provided in the room where the terminal heat exchange component is located, and the dew point temperature in the room is obtained by the dew point temperature sensor. If multiple dew point temperature sensors are provided in the same room, multiple dew point temperatures collected by multiple dew point temperature sensors are obtained.
确定模块20，用于根据所述温度参数和所述露点温度确定所述末端换热部件的辐射表面是否存在凝露风险。The determination module 20 is used to determine whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the temperature parameter and the dew point temperature.
需要说明的是，确定温度参数与露点温度之间的温度差值，将该温度差值与预先设定的参数值进行比较，若表征末端换热部件的表面温度的温度参数与露点温度之间的温度差值小于或等于预先设定的参数值，表征末端换热部件的表面温度与露点温度之间的差距较小，末端换热部件的辐射表面存在凝露风险；相反，若表征末端换热部件的表面温度的温度参数与露点温度之间的温度差值大于预先设定的参数值，表征末端换热部件的表面温度与露点温度之间的差距较大，末端换热部件的辐射表面不存在凝露风险。It should be noted that the temperature difference between the temperature parameter and the dew point temperature is determined, and the temperature difference is compared with the preset parameter value. If the temperature difference between the temperature parameter characterizing the surface temperature of the terminal heat exchange component and the dew point temperature is less than or equal to the preset parameter value, it means that the difference between the surface temperature of the terminal heat exchange component and the dew point temperature is small, and there is a risk of condensation on the radiation surface of the terminal heat exchange component; on the contrary, if the temperature difference between the temperature parameter characterizing the surface temperature of the terminal heat exchange component and the dew point temperature is greater than the preset parameter value, it means that the difference between the surface temperature of the terminal heat exchange component and the dew point temperature is large, and there is no risk of condensation on the radiation surface of the terminal heat exchange component.
进一步地，为了避免偶然因素导致的凝露风险误检测，确定一段时间内征末端换热部件的表面温度的温度参数与露点温度之间的温度差值是否持续小于或等于预先设定的参数值，若是，则确定末端换热部件的辐射表面存在凝露风险。Furthermore, in order to avoid false detection of condensation risk due to accidental factors, it is determined whether the temperature difference between the temperature parameter of the surface temperature of the terminal heat exchange component and the dew point temperature is continuously less than or equal to a preset parameter value over a period of time. If so, it is determined that there is a condensation risk on the radiation surface of the terminal heat exchange component.
以表征末端换热部件的表面温度的温度参数为辐射空调***的载冷剂温度为例，通过以下公式计算温度差值：
D＝TW-Tdew_Rn；Taking the temperature parameter representing the surface temperature of the terminal heat exchange component as the refrigerant temperature of the radiation air conditioning system as an example, the temperature difference is calculated by the following formula:
D = TW - Tdew_Rn;
其中，D表示温度差值；TW表示辐射空调***的载冷剂温度；Tdew_Rn表示露点温度。Wherein, D represents the temperature difference; TW represents the refrigerant temperature of the radiation air conditioning system; Tdew_Rn represents the dew point temperature.
在一实施例中，若当前的温度差值D≤预设值Ds1，则确定存在凝露风险，进入除露控制模式，若当前的温度差值D＞预设值Ds1，则确定不存在凝露风险，继续以制冷模式对应的参数控制热泵***运行。进一步地，在预设时长TIMS1内检测的温度差值D均≤ 预设值Ds1，则确定存在凝露风险，进入除露控制模式，若TIMS1内温度差值D均≤预设值Ds1不成立，则确定不存在凝露风险，继续以制冷模式对应的参数控制热泵***运行。In one embodiment, if the current temperature difference D is less than or equal to the preset value Ds1, it is determined that there is a condensation risk and the dew removal control mode is entered; if the current temperature difference D is greater than the preset value Ds1, it is determined that there is no condensation risk and the heat pump system continues to operate with the parameters corresponding to the cooling mode. If the preset value Ds1 is less than or equal to the preset value Ds1, it is determined that there is a condensation risk and the dew removal control mode is entered. If the temperature difference D in TIMS1 is not less than or equal to the preset value Ds1, it is determined that there is no condensation risk and the heat pump system continues to be controlled with the parameters corresponding to the cooling mode.
控制模块30，用于在所述末端换热部件的辐射表面存在凝露风险时，控制所述热泵***切换至制热模式。The control module 30 is used to control the heat pump system to switch to a heating mode when there is a risk of condensation on the radiation surface of the terminal heat exchange component.
应当理解的是，获取除露运行模式对应的预设温度值；控制所述热泵***的目标水温调整为所述预设温度值。在末端换热部件所处空间存在凝露风险时，进入除露控制模式，获取除露控制模式对应的预设温度值TWSs，控制热泵***切换为制热模式，且目标水温调整为预设温度值TWSs。其中，预设值Ds1、预设时长TIMS1以及预设水温值TWSs均为开发人员根据具体的机型结合实验测试结果和计算结果在控制装置内设定的参数值。It should be understood that the preset temperature value corresponding to the dew removal operation mode is obtained; the target water temperature of the heat pump system is controlled to be adjusted to the preset temperature value. When there is a risk of condensation in the space where the terminal heat exchange component is located, the dew removal control mode is entered, the preset temperature value TWSs corresponding to the dew removal control mode is obtained, the heat pump system is controlled to switch to the heating mode, and the target water temperature is adjusted to the preset temperature value TWSs. Among them, the preset value Ds1, the preset time TIMS1 and the preset water temperature value TWSs are all parameter values set by the developers in the control device according to the specific model combined with the experimental test results and calculation results.
在具体实现中，参照图2，制冷模式下热泵***内四通换向阀3的第一连通口D与第四连通口E导通、第二连通口C与第三连通口S导通，在确定末端换热部件所处空间存在凝露风险时，切换四通换向阀3的第一连通口D与第二连通口C导通、第三连通口S与第四连通口E导通。从而控制热泵***切换至制热模式，并根据预设水温值TWSs控制节流部件4的开度。In a specific implementation, referring to FIG. 2 , in the cooling mode, the first communication port D of the four-way reversing valve 3 in the heat pump system is connected to the fourth communication port E, and the second communication port C is connected to the third communication port S. When it is determined that there is a condensation risk in the space where the terminal heat exchange component is located, the first communication port D of the four-way reversing valve 3 is switched to be connected to the second communication port C, and the third communication port S is switched to be connected to the fourth communication port E. Thus, the heat pump system is controlled to switch to the heating mode, and the opening of the throttling component 4 is controlled according to the preset water temperature value TWSs.
在一实施例中，参照图5，确定热泵***管理的多个房间中存在凝露风险的目标房间，切换至制热模式，通过分集水器将热泵***制取的携带热量的载冷剂输送至目标房间，进行除露操作。In one embodiment, referring to FIG. 5 , a target room with condensation risk among multiple rooms managed by the heat pump system is determined, the mode is switched to heating mode, and the heat-carrying refrigerant produced by the heat pump system is transported to the target room through a manifold to perform a decondensation operation.
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。It should be understood that the above is only an example and does not constitute any limitation on the technical solution of the present application. In specific applications, technicians in this field can make settings as needed, and the present application does not impose any restrictions on this.
本申请中通过在热泵***处于制冷模式下，根据获取到的表征末端换热部件的表面温度的温度参数和末端换热部件所处空间的露点温度确定是否存在凝露风险，在判定存在凝露风险时热泵***切换为制热模式，升高辐射表面温度，烘干辐射表面的凝露水，避免凝露累积导致辐射表面发霉甚至表面装饰层脱落，大大提高辐射空调水***可靠性且改善用户使用体验。In the present application, when the heat pump system is in cooling mode, whether there is a condensation risk is determined based on the temperature parameters characterizing the surface temperature of the terminal heat exchange component and the dew point temperature of the space where the terminal heat exchange component is located. When it is determined that there is a condensation risk, the heat pump system switches to heating mode to increase the radiation surface temperature and dry the condensation water on the radiation surface to avoid condensation accumulation that causes the radiation surface to become moldy or even the surface decorative layer to fall off, thereby greatly improving the reliability of the radiation air conditioning water system and improving the user experience.
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。It should be noted that the workflow described above is merely illustrative and does not limit the scope of protection of the present application. In practical applications, technicians in this field can select part or all of it according to actual needs to achieve the purpose of the present application scheme, and no limitation is made here.
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除露控制方法，此处不再赘述。In addition, for technical details that are not described in detail in this application, please refer to the dew removal control method provided in any embodiment of this application, and will not be repeated here.
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***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***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***中还存在另外的相同要素。In addition, it should be noted that, in this article, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or system including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or system. In the absence of further restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or system including the element.
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。The serial numbers of the above-mentioned embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.
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。Through the description of the above implementation methods, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be implemented by means of software plus a necessary general hardware platform, and of course by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art, can be embodied in the form of a software product. 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 the various embodiments of the present application.
以上仅为本申请的实施例，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。 The above are merely embodiments of the present application and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims (13)

  1. 一种除露控制方法，其中，所述除露控制方法应用于辐射空调***，所述辐射空调***包括热泵***、末端换热部件以及与所述热泵***和所述末端换热部件连接的载冷剂循环***，所述除露控制方法包括：A dew removal control method, wherein the dew removal control method is applied to a radiant air conditioning system, the radiant air conditioning system comprising a heat pump system, a terminal heat exchange component, and a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component, the dew removal control method comprising:
    在所述热泵***处于制冷模式时，获取表征所述末端换热部件的表面温度的温度参数和所述末端换热部件所处空间的露点温度；When the heat pump system is in a cooling mode, obtaining a temperature parameter characterizing a surface temperature of the terminal heat exchange component and a dew point temperature of a space where the terminal heat exchange component is located;
    根据所述温度参数和所述露点温度确定所述末端换热部件的辐射表面是否存在凝露风险；Determining whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the temperature parameter and the dew point temperature;
    在所述末端换热部件的辐射表面存在凝露风险时，控制所述热泵***切换至制热模式。When there is a risk of condensation on the radiation surface of the terminal heat exchange component, the heat pump system is controlled to switch to a heating mode.
  2. 如权利要求1所述的除露控制方法，其中，所述表征所述末端换热部件的表面温度的温度参数包括所述辐射空调***的载冷剂温度和/或所述末端换热部件的辐射表面温度。The dew removal control method according to claim 1, wherein the temperature parameter characterizing the surface temperature of the terminal heat exchange component includes the refrigerant temperature of the radiation air-conditioning system and/or the radiation surface temperature of the terminal heat exchange component.
  3. 如权利要求2所述的除露控制方法，其中，所述根据所述温度参数和所述露点温度确定所述末端换热部件的辐射表面是否存在凝露风险的步骤包括：The dew removal control method according to claim 2, wherein the step of determining whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the temperature parameter and the dew point temperature comprises:
    确定所述载冷剂温度与所述露点温度之间的第一温度差值，且/或，确定所述辐射表面温度与所述露点温度之间的第二温度差值；Determining a first temperature difference between the coolant temperature and the dew point temperature, and/or determining a second temperature difference between the radiation surface temperature and the dew point temperature;
    根据第一温度差值和/或所述第二温度差值确定所述末端换热部件的辐射表面是否存在凝露风险。It is determined whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the first temperature difference and/or the second temperature difference.
  4. 如权利要求3所述的除露控制方法，其中，所述根据第一温度差值和/或所述第二温度差值确定所述末端换热部件的辐射表面是否存在凝露风险的步骤包括：The dew removal control method according to claim 3, wherein the step of determining whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the first temperature difference and/or the second temperature difference comprises:
    当所述第一温度差值小于或等于第一预设值时，或，当所述第一温度差值小于或等于第一预设值且持续第一预设时长时，确定所述末端换热部件的辐射表面存在凝露风险；和/或，When the first temperature difference is less than or equal to a first preset value, or when the first temperature difference is less than or equal to the first preset value and lasts for a first preset time, it is determined that there is a condensation risk on the radiation surface of the terminal heat exchange component; and/or,
    当所述第二温度差值小于或等于第二预设值时，或，当所述第二温度差值小于或等于第二预设值且持续第二预设时长时，确定所述末端换热部件的辐射表面存在凝露风险。When the second temperature difference is less than or equal to a second preset value, or when the second temperature difference is less than or equal to the second preset value and lasts for a second preset time, it is determined that there is a condensation risk on the radiation surface of the terminal heat exchange component.
  5. 如权利要求1所述的除露控制方法，其中，所述在所述末端换热部件的辐射表面存在凝露风险时，控制所述热泵***切换至制热模式的步骤之后，还包括：The dew removal control method according to claim 1, wherein, after the step of controlling the heat pump system to switch to the heating mode when there is a risk of condensation on the radiation surface of the terminal heat exchange component, the method further comprises:
    当所述热泵***运行达到预设条件时，控制所述热泵***切换至所述制冷模式；When the operation of the heat pump system reaches a preset condition, controlling the heat pump system to switch to the cooling mode;
    其中，所述预设条件包括下列至少一个：The preset condition includes at least one of the following:
    目标温差值大于第三预设值，或，目标温差值大于第三预设值且持续第三预设时长，所述目标温差值为表征所述末端换热部件的表面温度的当前温度参数与所述末端换热部件所处空间的当前露点温度之间的温度差值；The target temperature difference value is greater than a third preset value, or the target temperature difference value is greater than the third preset value and lasts for a third preset time, and the target temperature difference value is the temperature difference between the current temperature parameter characterizing the surface temperature of the terminal heat exchange component and the current dew point temperature of the space where the terminal heat exchange component is located;
    所述制热模式运行的累积时长大于或等于第四预设时长；The accumulated operation time of the heating mode is greater than or equal to a fourth preset time;
    所述末端换热部件所处空间的环境温度与设定温度之间的温度差值大于或等于第四预设值。The temperature difference between the ambient temperature of the space where the terminal heat exchange component is located and the set temperature is greater than or equal to a fourth preset value.
  6. 如权利要求5所述的除露控制方法，其中，所述表征所述末端换热部件的表面温度的当前温度参数包括所述辐射空调***的载冷剂温度和/或所述末端换热部件的辐射表面温度。The dehumidification control method as described in claim 5, wherein the current temperature parameter characterizing the surface temperature of the terminal heat exchange component includes the refrigerant temperature of the radiant air-conditioning system and/or the radiant surface temperature of the terminal heat exchange component.
  7. 如权利要求5所述的除露控制方法，其中，定义第一目标温度为所述热泵***在所述制冷模式下的载冷剂目标温度，所述控制所述热泵***切换至制热模式的步骤包括：The dehumidification control method according to claim 5, wherein the first target temperature is defined as the target temperature of the refrigerant of the heat pump system in the cooling mode, and the step of controlling the heat pump system to switch to the heating mode comprises:
    控制所述热泵***切换至所述制热模式，并根据第二目标温度控制所述热泵***运行，所述第一目标温度小于所述第二目标温度；且/或，Controlling the heat pump system to switch to the heating mode, and controlling the heat pump system to operate according to a second target temperature, wherein the first target temperature is lower than the second target temperature; and/or,
    定义第一目标温度为所述热泵***在所述制冷模式下的载冷剂目标温度，所述控制所述热泵***切换至所述制冷模式的步骤包括：The first target temperature is defined as the target temperature of the refrigerant of the heat pump system in the cooling mode. The step of controlling the heat pump system to switch to the cooling mode includes:
    控制所述热泵***切换至所述制冷模式，并根据所述第一目标温度控制所述热泵*** 运行。Control the heat pump system to switch to the cooling mode, and control the heat pump system according to the first target temperature run.
  8. 如权利要求1-7中任一项所述的除露控制方法，其中，所述辐射空调***包括多个末端换热部件和分集水器，所述分集水器包括多个分水阀，各个所述末端换热部件均与对应的分水阀连接，所述分水阀用于打开或关闭对应的末端换热部件的载冷剂流入通道；The dew removal control method according to any one of claims 1 to 7, wherein the radiation air conditioning system comprises a plurality of terminal heat exchange components and a manifold, the manifold comprises a plurality of water diversion valves, each of the terminal heat exchange components is connected to a corresponding water diversion valve, and the water diversion valve is used to open or close the coolant inflow channel of the corresponding terminal heat exchange component;
    所述控制所述热泵***切换至制热模式的步骤之后，所述方法还包括：After the step of controlling the heat pump system to switch to the heating mode, the method further includes:
    确定所述多个末端换热部件中存在凝露风险的目标末端换热部件；Determining a target terminal heat exchange component having a condensation risk among the plurality of terminal heat exchange components;
    开启所述目标末端换热部件连接的目标分水阀，并关闭除所述目标分水阀外的其他分水阀。The target water diversion valve connected to the target terminal heat exchange component is opened, and other water diversion valves except the target water diversion valve are closed.
  9. 如权利要求8所述的除露控制方法，其中，所述开启所述目标末端换热部件连接的目标分水阀，并关闭除所述目标分水阀外的其他分水阀的步骤之后，还包括：The dew removal control method according to claim 8, wherein after the step of opening the target water diversion valve connected to the target terminal heat exchange component and closing other water diversion valves except the target water diversion valve, it further comprises:
    检测每个所述目标末端换热部件是否已消除凝露风险，并返回执行所述确定所述多个末端换热部件中存在凝露风险的目标末端换热部件的步骤，直至所有所述末端换热部件均已消除凝露风险。Detect whether each of the target terminal heat exchange components has eliminated the condensation risk, and return to execute the step of determining the target terminal heat exchange component with condensation risk among the multiple terminal heat exchange components until all the terminal heat exchange components have eliminated the condensation risk.
  10. 如权利要求8所述的除露控制方法，其中，所述开启所述目标末端换热部件连接的目标分水阀，并关闭除所述目标分水阀外的其他分水阀的步骤之后，所述方法还包括：The dew removal control method according to claim 8, wherein after the step of opening the target water diversion valve connected to the target terminal heat exchange component and closing other water diversion valves except the target water diversion valve, the method further comprises:
    当所述热泵***切换至制冷模式时，确定所述制冷模式对应的分水阀目标状态；When the heat pump system switches to a cooling mode, determining a target state of a water diversion valve corresponding to the cooling mode;
    根据所述分水阀目标状态控制多个分水阀运行。The operation of multiple water diversion valves is controlled according to the target state of the water diversion valves.
  11. 一种除露控制装置，其中，所述除露控制装置应用于辐射空调***，所述辐射空调***包括热泵***、末端换热部件以及与所述热泵***和所述末端换热部件连接的载冷剂循环***，所述除露控制装置包括：A dew removal control device, wherein the dew removal control device is applied to a radiation air conditioning system, the radiation air conditioning system includes a heat pump system, a terminal heat exchange component, and a refrigerant circulation system connected to the heat pump system and the terminal heat exchange component, and the dew removal control device includes:
    获取模块，用于在所述热泵***处于制冷模式时，获取表征所述末端换热部件的表面温度的温度参数和所述末端换热部件所处空间的露点温度；an acquisition module, used for acquiring, when the heat pump system is in a cooling mode, a temperature parameter characterizing a surface temperature of the terminal heat exchange component and a dew point temperature of a space where the terminal heat exchange component is located;
    确定模块，用于根据所述温度参数和所述露点温度确定所述末端换热部件的辐射表面是否存在凝露风险；a determination module, configured to determine whether there is a condensation risk on the radiation surface of the terminal heat exchange component according to the temperature parameter and the dew point temperature;
    控制模块，用于在所述末端换热部件的辐射表面存在凝露风险时，控制所述热泵***切换至制热模式。The control module is used to control the heat pump system to switch to a heating mode when there is a risk of condensation on the radiation surface of the terminal heat exchange component.
  12. 一种辐射空调***，其中，所述辐射空调***包括：A radiant air conditioning system, wherein the radiant air conditioning system comprises:
    热泵***、末端换热部件、与所述热泵***和所述末端换热部件连接的载冷剂循环***以及控制装置；A heat pump system, a terminal heat exchange component, a coolant circulation system connected to the heat pump system and the terminal heat exchange component, and a control device;
    所述控制装置包括存储器、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除露控制程序，所述除露控制程序配置为实现如权利要求1至10中任一项所述的除露控制方法。The control device includes a memory, a processor, and a dew removal control program stored in the memory and executable on the processor, wherein the dew removal control program is configured to implement the dew removal control method according to any one of claims 1 to 10.
  13. 一种存储介质，其中，所述存储介质上存储有除露控制程序，所述除露控制程序被处理器执行时实现如权利要求1至10中任一项所述的除露控制方法。 A storage medium, wherein a dew removal control program is stored on the storage medium, and when the dew removal control program is executed by a processor, the dew removal control method according to any one of claims 1 to 10 is implemented.
PCT/CN2023/113576 2022-11-22 2023-08-17 Dew removal control method and apparatus, radiant air-conditioning system, and storage medium WO2024109191A1 (en)

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