Control method for environment adjustment device, environment adjustment device, and storage medium

Abstract

The present application discloses a control method for an environment adjustment device, an environment adjustment device, and a storage medium. The environment adjustment device comprises a heat pump system and a secondary refrigerant circulating system in heat exchange connection with the heat pump system. The secondary refrigerant circulating system comprises an indoor terminal device. The method comprises: when the environment adjustment device is in a shutdown state or a standby state and a dampproof function is enabled, obtaining a first state parameter representing a condensation state of an indoor space; and when the first state parameter meets a condensation condition, controlling the heat pump system to operate for heating, and controlling the secondary refrigerant circulating system to operate so as to convey heat of the heat pump system to the indoor terminal device in the indoor space.

Description

Control method of environmental conditioning device, environmental conditioning device and storage medium

[0001] This application claims priority to Chinese patent application No. 202311558009.X filed on November 21, 2023, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of environmental conditioning equipment, and in particular to a control method for environmental conditioning equipment, an environmental conditioning equipment, and a storage medium. Background Art

[0003] In addition to heating or cooling the indoor environment, environmental conditioning equipment can also dehumidify the indoor environment.

[0004] At present, the dehumidification mode of the environmental conditioning equipment is activated by the user himself, which easily leads to untimely dehumidification of the indoor environment and causes moisture condensation indoors. Technical issues

[0005] The main purpose of this application is to provide a control method for an environmental conditioning device, an environmental conditioning device, and a storage medium, aiming to reduce the risk of indoor moisture condensation. Technical Solutions

[0006] To achieve the above objectives, the present application provides a control method for an environmental conditioning device, the environmental conditioning device comprising a heat pump system and a brine circulation system connected to the heat pump system for heat exchange, the brine circulation system comprising an indoor terminal device, and the control method for the environmental conditioning device comprising the following steps:

[0007] When the environment conditioning device is in an off state or a standby state and the moisture-proof function is turned on, obtaining a first state parameter indicating a condensation state of the indoor space;

[0008] When the first state parameter meets the condensation condition, the heat pump system is controlled to operate for heating, and the brine circulation system is controlled to operate to transport the heat of the heat pump system to the indoor terminal equipment in the indoor space.

[0009] In one embodiment, after controlling the heat pump system to operate in heating mode, the method further includes:

[0010] Acquiring a second state parameter representing a condensation state of the indoor space and / or a temperature state parameter of the surface of the indoor terminal device;

[0011] determining a target brine temperature of the brine circulation system according to the second state parameter and / or the temperature state parameter;

[0012] The heat pump system is controlled to operate in heating mode according to the target refrigerant temperature.

[0013] In one embodiment, the second state parameter includes the dew point temperature of the indoor space and the surface temperature of the indoor terminal device, and the temperature state parameter includes a surface temperature change value. The step of determining the target brine temperature of the brine circulation system based on the second state parameter and / or the temperature state parameter includes:

[0014] When the temperature difference between the surface temperature and the dew point temperature is less than or equal to a first preset temperature difference, and the surface temperature change value is less than or equal to a first preset value, increasing the target value of the current brine temperature of the brine circulation system to obtain the target brine temperature;

[0015] When the surface temperature change value is greater than a second preset value, lowering the target value of the current brine temperature of the brine circulation system to obtain the target brine temperature;

[0016] The second preset value is greater than or equal to the first preset value.

[0017] In one embodiment, after the step of determining the target brine temperature of the brine circulation system according to the second state parameter and / or the temperature state parameter, the method further includes:

[0018] When the target brine temperature is within a preset temperature range, controlling the heat pump system to operate in heating mode according to the target brine temperature;

[0019] When the target brine temperature is greater than the upper limit temperature of the preset temperature range, the heat pump system is controlled to operate in heating mode with the upper limit temperature as the target brine temperature;

[0020] When the target brine temperature is lower than the lower limit temperature of the preset temperature range, the heat pump system is controlled to operate in heating mode with the lower limit temperature being the target brine temperature.

[0021] In one embodiment, before the step of obtaining the second state parameter representing the condensation state of the indoor space and / or the temperature state parameter of the surface of the indoor terminal device, the step further includes:

[0022] When the heat pump system starts heating operation, the preset brine temperature is used as the target temperature of the brine in the brine circulation system to control the preset heating operation time of the heat pump system.

[0023] In one embodiment, after the step of controlling the brine circulation system to operate so as to transfer heat from the heat pump system to the indoor terminal equipment in the indoor space, the method further includes:

[0024] When the indoor space meets a preset condition, controlling the refrigerant circulation system to stop delivering heat from the heat pump system to the indoor terminal equipment in the indoor space;

[0025] The preset conditions include at least one of the following conditions:

[0026] The temperature difference between the surface temperature of the indoor terminal device and the dew point temperature of the indoor space is greater than a second preset temperature difference;

[0027] The temperature rise of the indoor space after the heat pump system operates in heating mode is greater than a target value.

[0028] In one embodiment, the target amplitude includes the amplitude of the temperature rise of the outdoor environment corresponding to the environmental conditioning device after the heat pump system is in heating operation.

[0029] In one embodiment, the brine circulation system includes at least two indoor terminal devices, different indoor terminal devices are located in different indoor spaces, and a first indoor space is defined as an indoor space in which a first state parameter satisfies a condensation condition. When the indoor space satisfies a preset condition, the step of controlling the brine circulation system to stop transferring heat from the heat pump system to the indoor terminal device in the indoor space includes:

[0030] When at least one of the first indoor spaces meets a preset condition, the brine circulation system is controlled to stop transporting heat from the heat pump system to the indoor terminal equipment in the first indoor space meeting the preset condition.

[0031] In one embodiment, after the step of controlling the brine circulation system to stop transferring heat from the heat pump system to the indoor terminal equipment in the first indoor space that meets the preset condition when at least one of the first indoor spaces meets the preset condition, the method further includes:

[0032] When all first indoor spaces meet the preset condition, the environmental conditioning device is controlled to shut down.

[0033] In one embodiment, the first state parameter includes the dew point temperature of the indoor space and the surface temperature of the indoor terminal device, and the condensation condition includes that the temperature difference between the surface temperature and the dew point temperature is less than a third preset temperature difference.

[0034] In one embodiment, the brine circulation system includes at least two indoor terminal devices, and different indoor terminal devices are provided in different indoor spaces. When the first state parameter satisfies the condensation condition, the steps of controlling the heat pump system to operate for heating, and controlling the brine circulation system to operate so as to transfer heat from the heat pump system to the indoor terminal devices in the indoor space include:

[0035] When a first state parameter of at least one indoor space meets a condensation condition, the heat pump system is controlled to operate for heating, the brine circulation system is controlled to operate to transfer heat from the heat pump system to an indoor terminal device in the first indoor space, and the brine circulation system is controlled to operate to stop transferring heat from the heat pump system to an indoor terminal device in the second indoor space;

[0036] The first indoor space is an indoor space whose first state parameter satisfies the condensation condition, and the second indoor space is an indoor space whose first state parameter does not satisfy the condensation condition.

[0037] In one embodiment, the brine circulation system further includes a fluid regulating module, the fluid regulating module including at least two fluid valves, the fluid valves being connected to the indoor terminal devices in a one-to-one correspondence, and the steps of controlling the brine circulation system to operate so as to transfer heat from the heat pump system to the indoor terminal devices in the first indoor space and controlling the brine circulation system to operate so as to stop transferring heat from the heat pump system to the indoor terminal devices in the second indoor space include:

[0038] The fluid valve corresponding to the first indoor space is controlled to be opened to allow the brine to flow into the corresponding indoor terminal device, and the fluid valve corresponding to the second indoor space is controlled to be closed to stop the brine from flowing into the corresponding indoor terminal device.

[0039] In addition, to achieve the above-mentioned purpose, the present application also proposes an environmental conditioning device, which includes a control device, a heat pump system, and a refrigerant circulation system connected to the heat pump system for heat exchange, wherein the refrigerant circulation system includes an indoor terminal device;

[0040] The heat pump system and the refrigerant circulation system are both connected to a control device, which includes: a memory, a processor, and a control program for the environmental conditioning equipment stored in the memory and runnable on the processor. When the control program for the environmental conditioning equipment is executed by the processor, the steps of the control method for the environmental conditioning equipment as described in any one of the above items are implemented.

[0041] In addition, in order to achieve the above-mentioned purpose, the present application also proposes a storage medium, on which a control program of an environmental conditioning device is stored. When the control program of the environmental conditioning device is executed by a processor, the steps of the control method of the environmental conditioning device as described in any of the above items are implemented. Beneficial effects

[0042] The present application proposes a control method for an environmental conditioning device. When the environmental conditioning device is in a shutdown state or a standby state and the moisture-proof function is turned on, the method determines that there is a risk of condensation indoors through a first state parameter. Without user operation, the environmental conditioning device can automatically start the moisture-proof operation by controlling the heating operation of the heat pump system and controlling the refrigerant circulation system to transport the heat of the heat pump system to the indoor terminal device of the indoor space. During this process, the heat released by the indoor terminal device can effectively increase the wall temperature of the installed indoor space, prevent condensation on the wall of the indoor space, and effectively and timely reduce the risk of indoor moisture condensation. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] FIG1 is a schematic diagram of the system structure of an embodiment of the environmental conditioning device of the present application;

[0044] FIG2 is a schematic diagram of the hardware structure involved in the operation of an embodiment of the environmental adjustment device of the present application;

[0045] FIG3 is a flow chart of an embodiment of a control method for an environmental conditioning device of the present application;

[0046] FIG4 is a flow chart of another embodiment of a control method for an environmental conditioning device according to the present invention;

[0047] FIG5 is a flow chart of another embodiment of a control method for an environmental conditioning device according to the present application;

[0048] FIG6 is a flow chart of another embodiment of a control method for an environmental conditioning device of the present application.

[0049] The realization of the objectives, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. Modes for Carrying Out the Invention

[0050] It should be understood that the specific embodiments described herein are only used to explain the present application and are not intended to limit the present application.

[0051] The embodiment of the present application provides an environment regulating device, which is specifically used to regulate the temperature of an indoor environment.

[0052] In the embodiment of the present application, referring to Figures 1 and 2 , the environmental conditioning device includes a heat pump system 2, a brine circulation system 3 connected to the heat pump system 2, and a control device 1. Both the heat pump system 2 and the brine circulation system 3 are connected to the control device 1. The brine circulation system 3 transfers the energy output by the heat pump system to the indoor space through the circulation of the brine, thereby regulating the temperature of the indoor space. The heat pump system 2 is used to provide energy (such as cooling or heating) for the heat exchange between the brine circulation system 3 and the indoor space.

[0053] In one embodiment, the brine circulation system 3 is a water system. The heat pump system 2 is used to regulate the water supply temperature of the brine circulation system 3. The brine circulation system 3 can use the indoor terminal device 31 to regulate the indoor temperature. In this embodiment of the present application, the water supply temperature of the brine circulation system 3 can be understood as the water outlet temperature of the heat pump system 2. In other embodiments, the brine circulation system 3 can also be a system that uses a brine to transmit energy, such as an ethanol solution.

[0054] In one embodiment, the heat pump system 2 is an air source heat pump system 2. In other embodiments, the heat pump system 2 may also be a water source heat pump system, a ground source heat pump system, or a dual source heat pump system.

[0055] The brine circulation system 3 includes a medium circulation loop, an indoor terminal device 31 located within the medium circulation loop, and a heat exchange module. The heat exchange module is connected to the heat pump system 2 for heat exchange. The medium circulation loop has an inlet and an outlet. The inlet of the medium circulation loop is connected to the outlet of the heat exchange module, and the outlet of the medium circulation loop is connected to the inlet of the heat exchange module. The cooling or heating of the brine in the medium circulation loop can be released to the indoor space at the indoor terminal device 31.

[0056] There can be one or more indoor terminal devices 31, and these multiple indoor terminal devices 31 can be distributed in different indoor spaces. The heat exchange types of the indoor terminal devices 31 in different indoor spaces can be the same or different. Based on this, the cooling or heating capacity carried by the medium in the medium circulation loop can be used to regulate the ambient temperature of more than one indoor space.

[0057] In one embodiment, the indoor terminal device 31 is a radiation terminal device, such as a radiant panel or capillary network. The radiation terminal device can be installed on a wall surface (including a wall and / or floor) of the indoor space. In other embodiments, the indoor terminal device 31 can also be a convection heat exchange device. For example, the indoor terminal device 31 can include a fan coil unit, a floor heating coil, a fan unit, or a heat sink.

[0058] In one embodiment, the heat pump system 2 includes a refrigerant circulation circuit, which includes a compressor, a first heat exchanger, a throttling device, and a second heat exchanger. The second heat exchanger is heat-exchangeably connected to a heat exchange module in the refrigerant circulation system 3. The second heat exchanger and the heat exchange module can be a shell-and-tube heat exchanger or a plate heat exchanger.

[0059] The heat pump system 2 can have two operating modes: cooling mode and heating mode. When the heat pump system 2 operates in cooling mode, the second heat exchanger is in an evaporating state and absorbs heat. When the heat pump system 2 operates in heating mode, the second heat exchanger is in a condensing state and releases heat.

[0060] During operation of heat pump system 2, the water in the heat exchange module absorbs the cooling or heat released by the second heat exchanger to form cold or hot water. The cooling or heat-carrying medium flowing out of the heat exchange module enters the medium circulation loop and flows to the indoor terminal device 31, releasing the cooling or heat into the indoor air to regulate the indoor ambient temperature. After releasing the cooling or heat, the medium re-enters the heat exchange module to exchange heat with the second heat exchanger. After this heat exchange, the medium re-enters the medium circulation loop for heat exchange, and this cycle repeats, enabling the environmental conditioning device to regulate the indoor temperature.

[0061] When the heat pump system 2 is in cooling operation, the second heat exchanger is in an evaporating state. The medium in the heat exchange module absorbs the cold output by the second heat exchanger and its temperature drops to form a medium carrying cold. The medium carrying cold enters the medium circulation loop and flows to the indoor terminal device 31, releasing cold to the indoor space, and the ambient temperature of the indoor space drops.

[0062] When the heat pump system 2 is in heating operation, the second heat exchanger is in a condensing state. The medium in the heat exchange module absorbs the heat output by the second heat exchanger and its temperature rises to form a heat-carrying medium. The heat-carrying medium enters the medium circulation loop and flows to the indoor terminal device 31, releasing heat to the indoor space, and the ambient temperature of the indoor space rises.

[0063] In one embodiment, the refrigerant circulation system 3 further includes a fluid regulating module 32, which is connected to the control device 1. The fluid regulating module 4 can be used to regulate the distribution, flow regulation and control of the supply and return liquid in the refrigerant circulation system 3. Specifically, the heat exchange module and the indoor terminal device 31 are both connected to the fluid regulating module 32. In one embodiment, the number of indoor terminal devices 31 is at least two, and at least two indoor terminal devices 31 and the heat exchange module are both connected to the fluid regulating module 32. The fluid regulating module 32 includes at least two fluid valves, and the fluid valves are connected to the indoor terminal devices 31 in a one-to-one correspondence. In one embodiment, the fluid regulating module 4 is a manifold. In other embodiments, the fluid regulating module 32 may also be a circulation pump.

[0064] In one embodiment, referring to Figure 2, the control device 1 can also be connected to the environment detection module 5. The environment detection module 5 may include an indoor temperature sensor and / or an outdoor temperature sensor. The indoor temperature sensor can detect the ambient temperature of the indoor space regulated by the environment conditioning device; the outdoor temperature sensor can detect the ambient temperature of the outdoor space where the environment conditioning device is located.

[0065] In one embodiment, referring to FIG. 2 , the control device 1 may further be connected to a temperature sensor 6 . The temperature sensor 6 is disposed on the surface of the indoor terminal device to detect the surface temperature of the indoor terminal device.

[0066] In the embodiment of the present application, referring to FIG2 , a control device 1 for an environmental conditioning device includes a processor 1001 (e.g., a CPU), a memory 1002, a timer 1003, and the like. The various components of the control device 1 are connected via a communication bus. The memory 1002 can be a high-speed RAM memory or a non-volatile memory such as a disk drive. The memory 1002 can also be a storage device independent of the processor 1001.

[0067] Those skilled in the art will understand that the device structure shown in FIG2 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.

[0068] As shown in Figure 2, memory 1002, a storage medium, may include a control program for an environmental conditioning device. In the apparatus shown in Figure 2, processor 1001 may be configured to invoke the control program for the environmental conditioning device stored in memory 1002 and execute the steps of the environmental conditioning device control method described in the following embodiments.

[0069] An embodiment of the present application also provides a control method for an environmental conditioning device, which is applied to the above-mentioned environmental conditioning device.

[0070] 3 , an embodiment of a control method for an environment conditioning device of the present application is provided. In one embodiment, the control method for the environment conditioning device includes:

[0071] Step S10: when the environment conditioning device is in a shutdown state or a standby state and the moisture-proof function is turned on, obtaining a first state parameter indicating a condensation state of the indoor space;

[0072] The moisture-proof function specifically reduces the risk of condensation in indoor spaces. In one embodiment, the moisture-proof function is activated in response to a user instruction. In other embodiments, the moisture-proof function may also be activated when monitored environmental parameters or dates meet set conditions.

[0073] The compressor stops when the environmental conditioning equipment is in the off state or standby state.

[0074] The first state parameter may include environmental parameters of the indoor space and / or state parameters of the indoor terminal device and / or detection data of the wall surface of the indoor space, etc.

[0075] The first state parameter may include at least one of the following: indoor temperature data, indoor humidity data, indoor enthalpy data, surface temperature data of indoor terminal equipment, refrigerant temperature data related to indoor terminal equipment, wall temperature of indoor space, etc.

[0076] Step S20: When the first state parameter satisfies the condensation condition, the heat pump system is controlled to operate for heating, and the refrigerant circulation system is controlled to operate to transfer the heat of the heat pump system to the indoor terminal equipment in the indoor space.

[0077] The condensation condition is specifically a condition that the first state parameter needs to meet when the wall surface of the indoor space has a condensation risk. The condensation condition may include a target parameter range that the first state parameter needs to reach or a target relationship between the first state parameter and a preset parameter.

[0078] When the first state parameter meets the condensation condition, the environmental conditioning device can start the moisture-proof mode. In the moisture-proof mode, the heat pump system operates for heating while the refrigerant circulation system operates to transfer the heat of the heat pump system to the indoor terminal equipment in the indoor space with condensation risk.

[0079] During operation of the brine circulation system, in one implementation, a fluid regulating module in the brine circulation system can be controlled to adjust the amount of brine flowing from the heat exchange module to the indoor terminal equipment. In another implementation, a convection regulating module (e.g., a fan) in the indoor terminal equipment of the brine circulation system can be controlled to adjust the amount of gas flowing through the indoor terminal equipment for heat exchange.

[0080] The operating parameters during the heating operation of the heat pump system and / or the operation of the refrigerant circulation system may be pre-set fixed parameters, or may be operating parameters determined according to the actual operating state of the environmental control device. In one embodiment, when the duration of the moisture-proof function being turned on is less than or equal to the preset duration, the preset refrigerant temperature is obtained as the initial target refrigerant temperature, and the heating operation of the heat pump system is controlled according to the initial target refrigerant temperature. In one embodiment, the target refrigerant temperature is generally the outlet liquid temperature of the heat exchange module in the refrigerant circulation system. In other embodiments, the target refrigerant temperature may also be the temperature at other locations in the refrigerant circulation system, such as the inlet liquid temperature of the heat exchange module or the inlet liquid temperature of the indoor terminal device.

[0081] When the heat pump system is operating for heating, the second heat exchanger in the heat pump system is in a condensing state. When the refrigerant circulation system is operating, the medium in the heat exchange module absorbs the heat output by the second heat exchanger and its temperature rises to form a heat-carrying medium. The heat-carrying medium enters the medium circulation loop and flows to the indoor terminal equipment. The heat released by the indoor terminal equipment can effectively increase the wall temperature of the indoor space.

[0082] An embodiment of the present application proposes a control method for an environmental conditioning device. When the environmental conditioning device is in a shutdown state or a standby state and the moisture-proof function is turned on, when it is determined through a first state parameter that there is a risk of condensation indoors, no user operation is required. By controlling the heating operation of the heat pump system and controlling the refrigerant circulation system to transport the heat of the heat pump system to the indoor terminal device of the indoor space, the environmental conditioning device can automatically start the moisture-proof operation. During this process, the heat released by the indoor terminal device can effectively increase the wall temperature of the installed indoor space, prevent condensation on the wall of the indoor space, and effectively and timely reduce the risk of indoor moisture condensation.

[0083] In one embodiment, the first state parameter includes the dew point temperature of the indoor space and the surface temperature of the indoor terminal device, and the condensation condition includes that the temperature difference between the surface temperature and the dew point temperature is less than a third preset temperature difference.

[0084] The dew point temperature can be calculated by detecting the indoor temperature and indoor humidity.

[0085] The surface temperature can be specifically detected by a temperature sensor provided on the surface of the indoor terminal device.

[0086] In one embodiment, the third preset temperature difference is greater than 0 and the deviation from 0 is less than a preset value, such as 1, 2, 3, or 5.

[0087] Here, the temperature difference between the surface temperature and the dew point temperature can accurately reflect the indoor condensation risk. If the temperature difference is less than the third preset temperature difference, it can accurately indicate the presence of condensation risk indoors. Therefore, based on the relationship between the temperature difference and the third preset temperature difference, precise control of the moisture-proof mode can be achieved to save energy while reducing the risk of indoor moisture condensation.

[0088] In other embodiments, the condensation condition may also include the surface temperature being less than or equal to the dew point temperature.

[0089] Based on the above embodiment, another embodiment of the control method of the environmental conditioning device of the present application is proposed. In one embodiment, referring to FIG4 , after controlling the heating operation of the heat pump system, the method further includes:

[0090] Step S21, obtaining a second state parameter representing the condensation state of the indoor space and / or a temperature state parameter of the surface of the indoor terminal device;

[0091] The second state parameter may include environmental parameters of the indoor space and / or state parameters of the indoor terminal device and / or detection data of the wall surface of the indoor space, etc.

[0092] The second state parameter may include at least one of the following: indoor temperature data, indoor humidity data, indoor enthalpy data, surface temperature data of indoor terminal equipment, refrigerant temperature data related to indoor terminal equipment, wall temperature of indoor space, etc.

[0093] The temperature state parameter may include at least one of the following: a real-time temperature value, a temperature change value, etc.

[0094] Step S22, determining a target brine temperature of the brine circulation system according to the second state parameter and / or the temperature state parameter;

[0095] The target brine temperature is specifically a target value of the brine in the brine circulation system.

[0096] Different second state parameters and / or different temperature state parameters correspond to different target brine temperatures.

[0097] In one implementation, a correspondence between the second state parameter and / or temperature state parameter and the target refrigerant temperature can be established in advance. The correspondence may include a calculation relationship, a mapping table, etc. Based on the correspondence, the target refrigerant temperature corresponding to the second state parameter and / or temperature state parameter can be determined.

[0098] In another implementation, a correspondence between the second state parameter and / or temperature state parameter and the temperature adjustment value can also be established in advance. The correspondence may include a calculation relationship, a mapping table, etc. Based on the correspondence, the temperature adjustment value corresponding to the second state parameter and / or temperature state parameter can be determined, and the target value of the current refrigerant in the refrigerant circulation system or the target value of the refrigerant preset in the refrigerant circulation system can be adjusted according to the temperature adjustment value to obtain the target refrigerant temperature.

[0099] In one embodiment, the target brine temperature is determined according to the second state parameter and the temperature state parameter.

[0100] Step S23: controlling the heat pump system to operate in heating mode according to the target refrigerant temperature.

[0101] In one embodiment, the outlet temperature of the heat exchange module is detected, and control parameters of the heat pump system (e.g., frequency control parameters, throttling device control parameters, fan control parameters, etc.) are determined based on the outlet temperature and the target brine temperature. The heat pump system is then controlled for heating based on the determined control parameters. For example, the temperature difference between the outlet temperature and the target brine temperature can be determined, and the target frequency of the compressor in the heat pump system can be determined based on this temperature difference, so that the compressor can be controlled to operate at the target frequency.

[0102] In one embodiment, controlling the heating operation of the heat pump system in the above manner is beneficial to improving the effectiveness of reducing the risk of condensation and ensuring indoor temperature comfort.

[0103] Furthermore, after step S23, the time length may be set at intervals, and the process returns to step S21.

[0104] In one embodiment, the second state parameter includes the dew point temperature of the indoor space and the surface temperature of the indoor terminal device, and the temperature state parameter includes a surface temperature change value. The surface temperature change value can be determined based on the difference between the first and second surface temperatures, where the interval between the first and second moments is a preset time. Alternatively, the surface temperature change value can be determined based on the difference between the first and third surface temperatures, where the first and third surface temperatures of the indoor terminal device are at the moment the heat pump system starts heating operation.

[0105] The step of determining the target refrigerant temperature of the refrigerant circulation system based on the second state parameter and / or the temperature state parameter includes: when the temperature difference between the surface temperature and the dew point temperature is less than or equal to a first preset temperature difference, and the surface temperature change value is less than or equal to a first preset value, increasing the target value of the current refrigerant temperature of the refrigerant circulation system to obtain the target refrigerant temperature; when the surface temperature change value is greater than a second preset value, lowering the target value of the current refrigerant temperature of the refrigerant circulation system to obtain the target refrigerant temperature; wherein, the second preset value is greater than or equal to the first preset value.

[0106] The first preset temperature difference is a critical value used to determine whether the indoor condensation risk is high. The temperature difference between the surface temperature and the dew point temperature serves as the condensation risk value. A smaller condensation risk value indicates a greater condensation risk. Therefore, a condensation risk value less than or equal to the first preset temperature difference is considered high, while a condensation risk value greater than the first preset temperature difference is considered low.

[0107] The first and second preset values ​​are pre-set thresholds for distinguishing between comfortable indoor temperature conditions. If the surface temperature change exceeds the second preset value, it can be assumed that the temperature rise during the heating process is significant, and the indoor space is prone to overheating, affecting user comfort. If the surface temperature change is between the first and second preset values, it can be assumed that the temperature rise during the heating process is moderate, and the indoor space is comfortable for users. If the temperature change is less than or equal to the first preset value, it can be assumed that the indoor space is comfortable for users during the heating process, or even overcooling.

[0108] Here, the current target value of the brine temperature may be a preset parameter value, or may be a parameter value obtained by adjusting the preset parameter value before the current moment.

[0109] The temperature adjustment value during the process of increasing or decreasing the target value can be a preset fixed value, such as 1°C. Furthermore, the temperature adjustment value during the process of increasing or decreasing the target value can also be determined based on the actual operating state parameters of the environmental conditioning equipment. For example, the temperature adjustment value can be determined based on the surface temperature, dew point temperature, surface temperature change value, and the number of indoor spaces currently at risk of condensation. The current target value of the brine temperature is adjusted based on the determined temperature adjustment value to obtain the target brine temperature.

[0110] In one embodiment, when the risk of indoor condensation is high and the temperature hasn't risen significantly, the target temperature of the refrigerant is increased to increase the heat output of the heat pump system, further raising the surface temperature of the indoor terminal equipment and effectively reducing the risk of indoor condensation. When the indoor temperature rises significantly, indicating a risk of overheating, the target temperature of the refrigerant is lowered to reduce the heat output of the heat pump system, effectively ensuring the comfort of indoor users. This effectively balances reducing the risk of indoor condensation with ensuring indoor comfort.

[0111] In one embodiment, before the step of obtaining the second state parameter representing the condensation state of the indoor space and / or the temperature state parameter of the surface of the indoor terminal device, it also includes: when the heat pump system starts heating operation, the preset refrigerant temperature is used as the target temperature of the refrigerant in the refrigerant circulation system to control the preset heating operation time of the heat pump system.

[0112] In one embodiment, the preset brine temperature may be the maximum brine temperature. In other embodiments, the preset brine temperature may be a temperature lower than the maximum brine temperature.

[0113] The preset duration may be a pre-set fixed duration, or may be a duration determined according to the actual operation of the environmental conditioning device, for example, the preset duration may be determined according to the number of indoor spaces whose first state parameter meets the condensation condition.

[0114] In one embodiment, when the heat pump system starts heating operation, the heat pump system is first controlled to heat for a period of time at a constant refrigerant temperature, and then the target refrigerant temperature is adjusted based on the above scheme, which is beneficial to improve the stability of the system operation when heating is started.

[0115] In one embodiment, after the step of determining the target refrigerant temperature of the refrigerant circulation system based on the second state parameter and / or the temperature state parameter, it also includes: when the target refrigerant temperature is within a preset temperature range, controlling the heating operation of the heat pump system according to the target refrigerant temperature; when the target refrigerant temperature is greater than the upper limit temperature of the preset temperature range, controlling the heating operation of the heat pump system with the upper limit temperature as the target temperature of the refrigerant; when the target refrigerant temperature is less than the lower limit temperature of the preset temperature range, controlling the heating operation of the heat pump system with the lower limit temperature as the target temperature of the refrigerant.

[0116] The preset temperature range is specifically the pre-set range of coolant temperatures allowed for normal operation of the coolant circulation system. The upper limit of the preset temperature range is the maximum coolant temperature allowed by the coolant circulation system, and the lower limit of the preset temperature range is the minimum coolant temperature allowed by the coolant circulation system.

[0117] In one embodiment, the above-mentioned method can ensure that the target value of the brine temperature for controlling the operation of the heat pump system is within a preset temperature range, thereby ensuring the normal operation of the heat pump system.

[0118] Based on any of the above embodiments, another embodiment of the control method of the environmental conditioning device of the present application is proposed. In one embodiment, referring to FIG5 , after step S20, the method further includes:

[0119] Step S30, when the indoor space meets a preset condition, controlling the coolant circulation system to stop delivering heat from the heat pump system to the indoor terminal equipment in the indoor space;

[0120] The preset conditions include at least one of the following conditions:

[0121] The temperature difference between the surface temperature of the indoor terminal device and the dew point temperature of the indoor space is greater than a second preset temperature difference;

[0122] The temperature rise of the indoor space after the heat pump system operates in heating mode is greater than a target value.

[0123] The second preset temperature difference is greater than the first preset temperature difference.

[0124] The second preset temperature difference is a critical value used to determine whether an indoor space has a condensation risk. The difference between the surface temperature and the dew point temperature serves as the condensation risk value. A higher condensation risk value indicates a lower condensation risk in the indoor space. Therefore, if the condensation risk value is greater than the second preset temperature difference, the indoor space is considered to have no condensation risk. If the condensation risk value is less than or equal to the second preset temperature difference, the indoor space is considered to have a condensation risk.

[0125] A first indoor temperature of the current indoor space and a second indoor temperature of the indoor space when the heat pump system starts heating are obtained, and a temperature rise range is determined according to a temperature difference between the first indoor temperature and the second indoor temperature.

[0126] The target amplitude is specifically a critical value used to distinguish whether the indoor temperature is comfortable after the moisture-proof mode is activated. The target amplitude can be a pre-set fixed value, or a value determined based on the actual operating conditions of the environmental conditioning device. In one embodiment, in order to accurately characterize indoor thermal comfort, the target amplitude includes the amplitude of the temperature rise of the outdoor environment corresponding to the environmental conditioning device after the heat pump system starts heating. Specifically, the first outdoor temperature of the current outdoor environment and the second outdoor temperature of the outdoor environment when the heat pump system starts heating are obtained, and the target amplitude here is determined based on the temperature difference between the first outdoor temperature and the second outdoor temperature.

[0127] In one embodiment, the preset condition may include that a temperature difference between the first indoor temperature and the second indoor temperature is greater than a temperature difference between the first outdoor temperature and the second outdoor temperature.

[0128] In one embodiment, the above-mentioned method can reduce the risk of indoor condensation while ensuring indoor temperature comfort.

[0129] Furthermore, based on any of the above embodiments, another embodiment of the control method of the environmental conditioning device of the present application is proposed. In one embodiment, the brine circulation system includes at least two indoor terminal devices, and different indoor terminal devices are located in different indoor spaces. Referring to Figure 6, step S20 includes:

[0130] Step S201: When a first state parameter of at least one indoor space satisfies a condensation condition, controlling the heat pump system to operate for heating, controlling the brine circulation system to operate to deliver heat from the heat pump system to an indoor terminal device in a first indoor space, and controlling the brine circulation system to operate to stop delivering heat from the heat pump system to an indoor terminal device in a second indoor space;

[0131] The first indoor space is an indoor space whose first state parameter satisfies the condensation condition, and the second indoor space is an indoor space whose first state parameter does not satisfy the condensation condition.

[0132] For example, at least two indoor terminal devices are respectively arranged in room 1, room 2 and room 3. When the first state parameters corresponding to room 1 and room 2 meet the condensation conditions and the first state parameters of room 3 do not meet the condensation conditions, the refrigerant circulation system can be controlled to transfer heat to the indoor terminal devices in room 1 and room 2, and the refrigerant circulation system can be controlled to stop transferring heat to the indoor terminal device in room 3.

[0133] In one embodiment, through the above method, when the environmental conditioning equipment is used to regulate more than one indoor space, it can effectively reduce the condensation risk of the indoor space with condensation risk while avoiding affecting the environment of other spaces without condensation risk, saving system energy consumption while achieving effective balance between moisture-proof effect and comfort of all indoor spaces.

[0134] In one embodiment, the brine circulation system further comprises a fluid regulating module, the fluid regulating module comprising at least two fluid valves, the fluid valves being connected to the indoor terminal devices in a one-to-one correspondence. In one embodiment, the fluid regulating module is a manifold, and the fluid valves are water diversion valves within the manifold. The steps of controlling the brine circulation system to transfer heat from the heat pump system to the indoor terminal devices in the first indoor space and controlling the brine circulation system to stop transferring heat from the heat pump system to the indoor terminal devices in the second indoor space include:

[0135] The fluid valve corresponding to the first indoor space is controlled to be opened to allow the brine to flow into the corresponding indoor terminal device, and the fluid valve corresponding to the second indoor space is controlled to be closed to stop the brine from flowing into the corresponding indoor terminal device.

[0136] Based on this, differentiated and precise control of the inflow of refrigerant to different indoor terminal equipment can be achieved through at least two fluid valves, thereby further saving system energy consumption while achieving an effective balance between moisture-proof effect and comfort in all indoor spaces.

[0137] In one embodiment, the brine circulation system includes at least two indoor terminal devices, different indoor terminal devices are located in different indoor spaces, and a first indoor space is defined as an indoor space in which a first state parameter satisfies a condensation condition. When the indoor space satisfies a preset condition, the step of controlling the brine circulation system to stop transferring heat from the heat pump system to the indoor terminal device in the indoor space includes:

[0138] When at least one of the first indoor spaces meets a preset condition, the brine circulation system is controlled to stop transporting heat from the heat pump system to the indoor terminal equipment in the first indoor space meeting the preset condition.

[0139] Among them, while controlling the operation of the refrigerant circulation system to stop delivering heat from the heat pump system to the indoor terminal equipment in the first indoor space that meets the preset conditions, the refrigerant circulation system is controlled to maintain delivering heat from the heat pump system to the indoor terminal equipment in the first indoor space that does not meet the preset conditions.

[0140] When the fluid regulating module includes the at least two fluid valves mentioned above, when at least one of the first indoor spaces meets a preset condition, the fluid valve corresponding to the first indoor space meeting the preset condition is controlled to be closed.

[0141] In one embodiment, when the environmental conditioning device is used to regulate more than one indoor space, and there is a risk of condensation in more than one indoor space, after the environmental conditioning device starts the moisture-proof mode, it can stop inputting energy to the corresponding indoor terminal device when the risk of condensation in the indoor space is eliminated or the temperature rises too high, thereby ensuring that the condensation risk reduction and comfort of each indoor space regulated by the environmental conditioning device are effectively balanced.

[0142] In one embodiment, after the step of controlling the refrigerant circulation system to stop transferring heat from the heat pump system to the indoor terminal equipment in the first indoor space that meets the preset conditions when at least one of the first indoor spaces meets the preset conditions, the step further includes: controlling the environmental conditioning equipment to shut down when all the first indoor spaces meet the preset conditions.

[0143] When the environmental conditioning equipment is shut down, both the heat pump system and the refrigerant circulation system are shut down.

[0144] Among them, when there is a first indoor space that does not meet the preset conditions, the process can return to the step of controlling the refrigerant circulation system to stop transferring heat from the heat pump system to the indoor terminal equipment in the first indoor space that meets the preset conditions when at least one of the first indoor spaces meets the preset conditions.

[0145] In one embodiment, the environmental conditioning equipment is shut down when all spaces with condensation risks meet preset conditions, thereby saving energy while further ensuring an effective balance between moisture-proofing and comfort in all indoor spaces.

[0146] In addition, an embodiment of the present application further proposes a storage medium on which a control program for an environmental conditioning device is stored. When the control program for the environmental conditioning device is executed by a processor, the relevant steps of any embodiment of the control method for the environmental conditioning device as described above are implemented.

[0147] It should be noted that, in this document, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or system comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or system. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or system comprising the element.

[0148] The serial numbers of the above embodiments of the present application are for description only and do not represent the advantages or disadvantages of the embodiments.

[0149] 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 the necessary general hardware platform, and of course can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of the present application is essentially or the part that contributes to the prior art can be embodied in the form of a software product, which is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes a number of instructions for enabling a terminal device (which can be a mobile phone, computer, server, environmental conditioning equipment, or network equipment, etc.) to execute the methods described in each embodiment of the present application.

[0150] The above are merely optional embodiments of the present application and do not 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

1. A method for controlling an environmental conditioning device, wherein: The environment conditioning device comprises a heat pump system and a coolant circulation system connected to the heat pump system for heat exchange, the coolant circulation system comprises an indoor terminal device, and the control method of the environment conditioning device comprises the following steps: When the environment conditioning device is in a shutdown state or a standby state and the moisture-proof function is turned on, obtaining a first state parameter representing a condensation state of the indoor space; When the first state parameter meets the condensation condition, the heat pump system is controlled to operate for heating, and the refrigerant circulation system is controlled to operate to transfer the heat of the heat pump system to the indoor terminal equipment in the indoor space.

2. The control method of the environment conditioning device according to claim 1, wherein: After controlling the heat pump system to operate in heating mode, the method further includes: Acquire a second state parameter representing the condensation state of the indoor space and / or a temperature state parameter of the surface of the indoor terminal device; Determining a target brine temperature of the brine circulation system according to the second state parameter and / or the temperature state parameter; The heat pump system is controlled to operate in heating mode according to the target refrigerant temperature.

3. The control method of the environment conditioning device according to claim 2, wherein: The second state parameter includes the dew point temperature of the indoor space and the surface temperature of the indoor terminal device, the temperature state parameter includes a surface temperature change value, and the step of determining the target brine temperature of the brine circulation system according to the second state parameter and / or the temperature state parameter includes: When the temperature difference between the surface temperature and the dew point temperature is less than or equal to a first preset temperature difference, and the surface temperature change value is less than or equal to a first preset value, increasing the target value of the current brine temperature of the brine circulation system to obtain the target brine temperature; When the surface temperature change value is greater than a second preset value, lowering the target value of the current brine temperature of the brine circulation system to obtain the target brine temperature; Wherein, the second preset value is greater than or equal to the first preset value.

4. The control method of the environment conditioning device according to claim 2, wherein: After the step of determining the target brine temperature of the brine circulation system according to the second state parameter and / or the temperature state parameter, the method further includes: When the target coolant temperature is within a preset temperature range, controlling the heat pump system to operate in heating mode according to the target coolant temperature; When the target coolant temperature is greater than the upper limit temperature of the preset temperature range, the heat pump system is controlled to operate in heating mode with the upper limit temperature as the target coolant temperature; When the target brine temperature is lower than the lower limit temperature of the preset temperature range, the heat pump system is controlled to operate in heating mode by taking the lower limit temperature as the target temperature of the brine.

5. The control method of the environment conditioning device according to claim 2, wherein: Before the step of acquiring the second state parameter representing the condensation state of the indoor space and / or the temperature state parameter of the surface of the indoor terminal device, the method further includes: When the heat pump system starts heating operation, the preset brine temperature is used as the target temperature of the brine in the brine circulation system to control the preset heating operation time of the heat pump system.

6. The control method of the environment conditioning device according to claim 1, wherein: After the step of controlling the operation of the secondary refrigerant circulation system to transfer the heat of the heat pump system to the indoor terminal equipment in the indoor space, the method further includes: When the indoor space meets a preset condition, the coolant circulation system is controlled to stop transmitting the heat of the heat pump system to the indoor terminal equipment in the indoor space; The preset condition includes at least one of the following conditions: The temperature difference between the surface temperature of the indoor terminal device and the dew point temperature of the indoor space is greater than a second preset temperature difference; The temperature rise amplitude of the indoor space after the heat pump system is in heating operation is greater than the target amplitude.

7. The control method of the environment conditioning device according to claim 6, wherein: The target amplitude includes the amplitude of the temperature rise of the outdoor environment corresponding to the environmental conditioning device after the heat pump system is in heating operation.

8. The control method of the environment conditioning device according to claim 6, wherein: The refrigerant circulation system includes at least two indoor terminal devices, different indoor terminal devices are arranged in different indoor spaces, and a first indoor space is defined as an indoor space in which a first state parameter satisfies a condensation condition. When the indoor space satisfies a preset condition, the step of controlling the refrigerant circulation system to stop transferring heat from the heat pump system to the indoor terminal device in the indoor space includes: When at least one of the first indoor spaces meets a preset condition, the refrigerant circulation system is controlled to stop transporting heat from the heat pump system to the indoor terminal equipment in the first indoor space that meets the preset condition.

9. The control method of the environment conditioning device according to claim 8, wherein: After the step of controlling the coolant circulation system to stop transferring heat from the heat pump system to the indoor terminal equipment in the first indoor space that meets the preset condition when at least one of the first indoor spaces meets the preset condition, the method further includes: When all the first indoor spaces meet the preset condition, the environmental conditioning device is controlled to shut down.

10. The control method of the environment conditioning device according to claim 1, wherein: The first state parameter includes the dew point temperature of the indoor space and the surface temperature of the indoor terminal device, and the condensation condition includes that the temperature difference between the surface temperature and the dew point temperature is less than a third preset temperature difference.

11. The control method of an environmental conditioning device according to any one of claims 1 to 10, wherein: The refrigerant circulation system includes at least two indoor terminal devices, and different indoor terminal devices are arranged in different indoor spaces. When the first state parameter meets the condensation condition, the steps of controlling the heat pump system to operate for heating, and controlling the refrigerant circulation system to operate so as to transfer the heat of the heat pump system to the indoor terminal devices in the indoor space include: When a first state parameter of at least one indoor space meets a condensation condition, the heat pump system is controlled to operate for heating, the refrigerant circulation system is controlled to operate to transfer heat from the heat pump system to an indoor terminal device in the first indoor space, and the refrigerant circulation system is controlled to operate to stop transferring heat from the heat pump system to an indoor terminal device in the second indoor space; The first indoor space is an indoor space whose first state parameter satisfies the condensation condition, and the second indoor space is an indoor space whose first state parameter does not satisfy the condensation condition.

12. The control method of the environment conditioning device according to claim 11, wherein: The refrigerant circulation system further includes a fluid regulating module, the fluid regulating module includes at least two fluid valves, the fluid valves are connected to the indoor terminal devices in a one-to-one correspondence, and the steps of controlling the refrigerant circulation system to operate so as to transfer the heat of the heat pump system to the indoor terminal device in the first indoor space and controlling the refrigerant circulation system to operate so as to stop transferring the heat of the heat pump system to the indoor terminal device in the second indoor space include: The fluid valve corresponding to the first indoor space is controlled to be opened so that the coolant flows into the corresponding indoor terminal device, and the fluid valve corresponding to the second indoor space is controlled to be closed so that the coolant stops flowing into the corresponding indoor terminal device.

13. An environmental conditioning device, wherein: The environmental conditioning device includes a control device, a heat pump system and a refrigerant circulation system connected to the heat pump system for heat exchange, and the refrigerant circulation system includes an indoor terminal device; The heat pump system and the refrigerant circulation system are both connected to a control device, which includes: a memory, a processor, and a control program for an environmental conditioning device stored in the memory and executable on the processor, wherein the control program for the environmental conditioning device implements the steps of a control method for the environmental conditioning device as described in any one of claims 1 to 12 when executed by the processor.

14. A storage medium, wherein: The storage medium stores a control program of an environmental conditioning device, and when the control program of the environmental conditioning device is executed by a processor, the steps of the control method of the environmental conditioning device according to any one of claims 1 to 12 are implemented.

Images