Heat recovery system, control method of heat recovery system, controller, and storage medium

Abstract

Embodiments of the present application provide a heat recovery system, a control method of the heat recovery system, a controller and a storage medium. The heat recovery system comprises an indoor heat exchanger, an outdoor heat exchanger, a water tank, an electrically controlled radiator and a valve assembly. The electrically controlled radiator comprises an air-cooled heat dissipation module and a refrigerant pipe heat dissipation module. The indoor heat exchanger is connected to the outdoor heat exchanger through the refrigerant pipe heat dissipation module. The valve assembly is provided with a first port, a second port and a third port. The first port is connected between the indoor heat exchanger and the refrigerant pipe heat dissipation module. The second port is connected between the outdoor heat exchanger and the refrigerant pipe heat dissipation module. The third port is connected to the water tank. The valve assembly can be controlled by a target operating mode to adjust the flow direction of the refrigerant, so that the combination of air-cooled heat dissipation and refrigerant pipe heat dissipation can be achieved, thereby improving the heat exchange effect of the system and the operating stability and reliability of the unit in an extremely high temperature environment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of heat recovery systems, and in particular to a heat recovery system, a control method of the heat recovery system, a controller and a storage medium. BACKGROUND

[0002] In the related art, the electric control of the heat recovery system adopts a refrigerant heat dissipation mode, which must have low-temperature refrigerant pass through the electric control refrigerant pipe for heat dissipation, so that some modes cannot be operated, and the advantages of heat recovery cannot be fully exerted.

[0003] If the refrigerant heat dissipation mode adopted by the electric control of the heat recovery system is replaced by the air cooling heat dissipation mode commonly adopted by the electric control of the ordinary air conditioning heat pump system, there will be a problem that in an extremely high-temperature environment, the electric control heat dissipation effect is poor, thereby affecting the operation stability and reliability of the unit. SUMMARY

[0004] The present application aims to at least solve one of the technical problems existing in the prior art. To this end, the present application provides a heat recovery system, a control method of the heat recovery system, a controller and a storage medium, which aims to improve the heat exchange effect of the system and improve the operation stability and reliability of the unit in an extremely high-temperature environment.

[0005] In a first aspect, the embodiments of the present application provide a heat recovery system, characterized in that it comprises:

[0006] an indoor heat exchanger, an outdoor heat exchanger and a water tank;

[0007] an electric control radiator comprising an air cooling heat dissipation module and a refrigerant pipe heat dissipation module, the indoor heat exchanger being connected to the outdoor heat exchanger through the refrigerant pipe heat dissipation module;

[0008] a valve assembly provided with a first port, a second port and a third port, the first port being connected between the indoor heat exchanger and the refrigerant pipe heat dissipation module, the second port being connected between the outdoor heat exchanger and the refrigerant pipe heat dissipation module, and the third port being connected to the water tank.

[0009] According to some embodiments of the present application, the valve assembly comprises:

[0010] a three-way valve, a first port of the three-way valve being connected between the indoor heat exchanger and the refrigerant pipe heat dissipation module, a second port of the three-way valve being connected between the outdoor heat exchanger and the refrigerant pipe heat dissipation module, and a third port of the three-way valve being connected to the water tank.

[0011] According to some embodiments of the present application, the valve assembly comprises:

[0012] a first two-way valve and a second two-way valve, one end of the first two-way valve being communicated between the indoor heat exchanger and the refrigerant pipe heat dissipation module, one end of the second two-way valve being communicated between the outdoor heat exchanger and the refrigerant pipe heat dissipation module, the water tank being communicated between the other end of the first two-way valve and the other end of the second two-way valve.

[0013] According to some embodiments of the present application, the valve assembly comprises:

[0014] a first two-way valve, a second two-way valve and a third two-way valve, one end of the first two-way valve being communicated between the indoor heat exchanger and the refrigerant pipe heat dissipation module, one end of the second two-way valve being communicated between the outdoor heat exchanger and the refrigerant pipe heat dissipation module, one end of the third two-way valve being communicated to the water tank, the other end of the first two-way valve, the other end of the second two-way valve and the other end of the third two-way valve being connected to each other.

[0015] According to some embodiments of the present application, the heat recovery system further comprises:

[0016] a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, the first electromagnetic valve being arranged between the valve assembly and the indoor heat exchanger, the second electromagnetic valve being arranged between the valve assembly and the water tank, the third electromagnetic valve being arranged between the valve assembly and the outdoor heat exchanger.

[0017] In a second aspect, applied to the heat recovery system as in any of the first aspect, the method comprises:

[0018] receiving a target operation mode;

[0019] controlling the valve assembly according to the target operation mode to adjust the flow direction of the refrigerant.

[0020] According to some embodiments of the present application, the controlling the valve assembly according to the target operation mode comprises one of:

[0021] when the target operation mode is a heating mode, controlling the first port and the second port to be conducted, controlling the third port and the first port to be shut off, and controlling the third port and the second port to be shut off;

[0022] when the target operation mode is a first refrigeration-heating-water mixing mode, controlling the first port and the second port to be conducted, controlling the third port and the first port to be conducted, and controlling the third port and the second port to be conducted;

[0023] When the target operating mode is the second cooling and hot water mixing mode, the first port and the second port are connected, the third port and the first port are connected, and the third port and the second port are connected.

[0024] According to some embodiments of this application, controlling the valve assembly according to the target operating mode includes:

[0025] Obtain the water temperature in the water tank;

[0026] The valve assembly is controlled according to the target operating mode and the water temperature in the water tank.

[0027] According to some embodiments of this application, the valve assembly that controls the valve assembly based on the target operating mode and the water temperature in the water tank includes one of the following:

[0028] When the target operating mode is a heating and hot water mixing mode and the water temperature in the tank is greater than the first preset temperature, the first port and the second port are shut off, the third port and the first port are shut off, and the third port and the second port are connected.

[0029] When the target operating mode is a heating and hot water mixing mode and the water temperature in the water tank is less than or equal to the first preset temperature, control the first port and the second port to be connected, control the third port and the first port to be connected, and control the third port and the second port to be connected or disconnected.

[0030] When the target operating mode is hot water production mode and the water temperature in the tank is greater than the second preset temperature, the first port and the second port are shut off, the third port and the first port are shut off, and the third port and the second port are connected.

[0031] When the target operating mode is hot water production mode and the water temperature in the water tank is less than or equal to the second preset temperature, the system controls the connection between the first port and the second port, controls the connection between the third port and the first port, and controls the connection or disconnection between the third port and the second port.

[0032] According to some embodiments of this application, controlling the valve assembly according to the target operating mode includes:

[0033] Obtain the outdoor ambient temperature;

[0034] The valve assembly is controlled according to the target operating mode and the outdoor ambient temperature.

[0035] According to some embodiments of this application, controlling the valve assembly based on the target operating mode and the outdoor ambient temperature includes one of the following:

[0036] When the target operating mode is cooling mode and the outdoor ambient temperature is greater than the third preset temperature, the control switches between the first port and the second port, controls the connection or disconnection between the third port and the first port, and controls the connection between the third port and the second port to be turned off.

[0037] When the target operating mode is cooling mode and the outdoor ambient temperature is less than or equal to the third preset temperature, control the first port and the second port to be connected, control the third port and the first port to be disconnected, and control the third port and the second port to be disconnected.

[0038] When the target operating mode is the third cooling and hot water mixing mode and the outdoor ambient temperature is greater than the fourth preset temperature, the control switches the first port and the second port to be turned off, the control switches the third port and the first port to be turned off, and the control switches the third port and the second port to be turned on.

[0039] When the target operating mode is the third cooling and hot water mixing mode and the outdoor ambient temperature is less than or equal to the fourth preset temperature, the first port and the second port are connected, the third port and the first port are connected, and the third port and the second port are connected.

[0040] According to some embodiments of this application, when the target operating mode is the second cooling-to-hot water mixing mode, the method further includes:

[0041] Obtain the outdoor ambient temperature;

[0042] The fan of the outdoor heat exchanger is controlled according to the outdoor ambient temperature.

[0043] According to some embodiments of this application, the step of controlling the fan of the outdoor heat exchanger based on the outdoor ambient temperature includes:

[0044] When the outdoor ambient temperature is greater than the fifth preset temperature, the fan of the outdoor heat exchanger is controlled to run at the first speed.

[0045] According to some embodiments of this application, the first rotational speed is obtained by the following formula: Where R is the first rotational speed and N is the first coefficient. The outdoor ambient temperature is... The fifth preset temperature.

[0046] Thirdly, embodiments of this application provide a controller, including: a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the control method of the heat recovery system as described in the second aspect above when running the computer program.

[0047] Fourthly, embodiments of this application provide a computer-readable storage medium storing computer-executable instructions for performing the control method of the heat recovery system as described in the second aspect above.

[0048] According to the technical solution of the embodiments of this application, at least the following beneficial effects are achieved: The embodiments of this application propose a heat recovery system, a control method for the heat recovery system, a controller, and a storage medium. The heat recovery system includes an indoor heat exchanger, an outdoor heat exchanger, a water tank, an electrically controlled radiator, and a valve assembly. The electrically controlled radiator includes an air-cooled heat dissipation module and a refrigerant pipe heat dissipation module. The indoor heat exchanger is connected to the outdoor heat exchanger through the refrigerant pipe heat dissipation module. The valve assembly is provided with a first port, a second port, and a third port. The first port connects to the indoor heat exchanger and the refrigerant pipe heat dissipation module, the second port connects to the outdoor heat exchanger and the refrigerant pipe heat dissipation module, and the third port connects to the water tank. Because the embodiments of this application can control the valve assembly through a target operating mode to adjust the flow direction of the refrigerant, it can achieve a combination of air-cooled heat dissipation and refrigerant pipe heat dissipation, thereby improving the heat exchange effect of the system and enhancing the operational stability and reliability of the unit under extreme high-temperature environments.

[0049] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0050] The accompanying drawings are used to provide a further understanding of the technical solutions of this application and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solutions of this application and do not constitute a limitation on the technical solutions of this application.

[0051] Figure 1 This is a schematic diagram of the structure of a heat recovery system provided in one embodiment of this application;

[0052] Figure 2 This is a schematic diagram of the structure of a heat recovery system provided in another embodiment of this application;

[0053] Figure 3 This is a schematic diagram of the structure of a heat recovery system provided in another embodiment of this application;

[0054] Figure 4 This is a flowchart of a control method for a heat recovery system provided in one embodiment of this application;

[0055] Figure 5 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application;

[0056] Figure 6 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application;

[0057] Figure 7 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application;

[0058] Figure 8 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application;

[0059] Figure 9 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application;

[0060] Figure 10 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application;

[0061] Figure 11 This is an overall flowchart of a control method for a heat recovery system provided in one embodiment of this application;

[0062] Figure 12 This is an overall flowchart of a control method for a heat recovery system provided in another embodiment of this application;

[0063] Figure 13 This is an overall flowchart of a control method for a heat recovery system provided in another embodiment of this application;

[0064] Figure 14 This is a schematic diagram of the structure of a controller for executing a control circuit according to an embodiment of this application. Detailed Implementation

[0065] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0066] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0067] In the description of this application, "several" means one or more, "more than" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. The use of "first" and "second" in the description is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0068] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0069] In some cases, the electronic control of the heat recovery system uses refrigerant cooling. Because it requires low-temperature refrigerant to pass through the electronic control cooling refrigerant pipe, some modes cannot operate, and the advantages of heat recovery cannot be fully utilized.

[0070] If the refrigerant cooling method used in the electrical control of the heat recovery system is replaced with the air-cooling method mostly used in the electrical control of ordinary air conditioning heat pump systems, the cooling effect of the electrical control will be poor in extreme high temperature environments, which will affect the operational stability and reliability of the unit.

[0071] Based on the above, this application proposes a heat recovery system, a control method for the heat recovery system, a controller, and a storage medium, aiming to improve the heat exchange effect of the system and enhance the operational stability and reliability of the unit under extreme high-temperature environments.

[0072] The various embodiments of the heat recovery system of this application will be further described below with reference to the accompanying drawings.

[0073] like Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 This is a schematic diagram of the structure of a heat recovery system provided in one embodiment of this application. Figure 2 This is a schematic diagram of the structure of a heat recovery system provided in another embodiment of this application. Figure 3 This is a schematic diagram of the structure of a heat recovery system provided in another embodiment of this application.

[0074] In one embodiment, the heat recovery system includes an indoor heat exchanger 100, an outdoor heat exchanger 200, a water tank 300, an electrically controlled radiator 400, and a valve assembly 500.

[0075] For example, the electronically controlled radiator 400 includes a refrigerant pipe heat dissipation module and an air-cooled heat dissipation module, and the indoor heat exchanger 100 is connected to the outdoor heat exchanger 200 through the refrigerant pipe heat dissipation module.

[0076] For example, the valve assembly 500 is provided with a first port, a second port and a third port, wherein the first port is connected between the refrigerant pipe heat dissipation module and the indoor heat exchanger 100, the second port is connected between the refrigerant pipe heat dissipation module and the outdoor heat exchanger 200, and the third port is connected to the water tank 300.

[0077] It is understood that the number of indoor heat exchangers 100 mentioned above can be one, two, or three, and can be set according to actual needs. This application embodiment does not specify the number of indoor heat exchangers 100.

[0078] It is worth noting that the embodiments of this application can control the valve assembly 500 through the target operating mode to adjust the flow direction of the refrigerant, thereby achieving a combination of air cooling and refrigerant pipe cooling, thereby improving the heat exchange effect of the system and improving the operational stability and reliability of the unit in extreme high temperature environments.

[0079] like Figure 1 The valve assembly 500 includes a three-way valve.

[0080] For example, the first port of the three-way valve is connected between the refrigerant pipe heat dissipation module and the indoor heat exchanger 100, the second port is connected between the refrigerant pipe heat dissipation module and the outdoor heat exchanger 200, and the third port is connected to the water tank 300.

[0081] It is worth noting that the embodiments of this application can control the three-way valve through the target operating mode to adjust the flow direction of the refrigerant, thereby achieving a combination of air cooling and refrigerant pipe cooling, thereby improving the heat exchange effect of the system and improving the operational stability and reliability of the unit in extreme high temperature environments.

[0082] For example, the heat recovery system includes: an indoor heat exchanger 100, an outdoor heat exchanger 200, and a water tank 300. The outdoor heat exchanger 200 comprises an electrically controlled radiator 400, which in turn comprises a refrigerant pipe cooling module and an air-cooled cooling module. A three-way valve is located between the water tank 300, the indoor heat exchanger 100, and the outdoor heat exchanger 200, allowing refrigerant to bypass the refrigerant pipes for cooling. This system reduces energy loss and improves energy efficiency due to refrigerant cooling in cooling mode; enhances heating performance in heating mode by cooling through the refrigerant pipes; and enables refrigerant cooling in extreme environments such as high-temperature cooling, improving the unit's operational stability and reliability, and achieving ultra-high-temperature cooling operation.

[0083] like Figure 2 As shown, the valve assembly 500 includes a first two-way valve and a second two-way valve.

[0084] For example, one end of the first two-way valve is connected to the indoor heat exchanger 100 and the refrigerant pipe heat dissipation module, one end of the second two-way valve is connected to the outdoor heat exchanger 200 and the refrigerant pipe heat dissipation module, and the water tank 300 is connected to the other end of the first two-way valve and the other end of the second two-way valve.

[0085] It is worth noting that the embodiments of this application can control the first two-way valve and the second two-way valve through the target operating mode to adjust the flow direction of the refrigerant, thereby achieving a combination of air cooling and refrigerant pipe cooling, thereby improving the heat exchange effect of the system and improving the operational stability and reliability of the unit in extreme high temperature environments.

[0086] like Figure 3 As shown, the valve assembly 500 includes a first two-way valve, a second two-way valve, and a third two-way valve.

[0087] For example, one end of the first two-way valve is connected to the indoor heat exchanger 100 and the refrigerant pipe heat dissipation module, one end of the second two-way valve is connected to the outdoor heat exchanger 200 and the refrigerant pipe heat dissipation module, one end of the third two-way valve is connected to the water tank 300, and the other ends of the first two-way valve, the second two-way valve and the third two-way valve are connected to each other.

[0088] It is worth noting that the embodiments of this application can control the first two-way valve, the second two-way valve and the third two-way valve through the target operating mode to adjust the flow direction of the refrigerant, thereby achieving a combination of air cooling and refrigerant pipe cooling, thereby improving the heat exchange effect of the system and improving the operational stability and reliability of the unit in extreme high temperature environments.

[0089] like Figure 1 , Figure 2 and Figure 3 As shown, the heat recovery system also includes a first solenoid valve 600, a second solenoid valve 700, and a third solenoid valve 800.

[0090] For example, a first solenoid valve 600 is disposed between the indoor heat exchanger 100 and the valve assembly 500, a second solenoid valve 700 is disposed between the water tank 300 and the valve assembly 500, and a third solenoid valve 800 is disposed between the outdoor heat exchanger 200 and the valve assembly 500.

[0091] It is understood that the embodiments of this application can further control the flow of refrigerant through the first solenoid valve 600, the second solenoid valve 700 and the third solenoid valve 800, thereby improving the stability and reliability of the system.

[0092] For example, the heat recovery system also includes a first four-way valve 900, a second four-way valve 1000, and a third four-way valve 1100.

[0093] For example, the first port of the first four-way valve 900 is connected to one end of the compressor 1200, the second port is connected to the indoor heat exchanger 100, the third port is connected to the other end of the compressor 1200, and the fourth port is connected to the third port; the first port of the second four-way valve 1000 is connected to one end of the compressor 1200, the second port is connected to the water tank, the third port is connected to the other end of the compressor 1200, and the fourth port is connected to the third port; the first port of the third four-way valve 1100 is connected to one end of the compressor 1200, the second port is connected to the first port, the third port is connected to the other end of the compressor 1200, and the fourth port is connected to the third port and the outdoor heat exchanger 200 respectively.

[0094] It is worth noting that this application can control the flow of refrigerant in different operating modes through the first four-way valve 900, the second four-way valve 1000 and the third four-way valve 1100, so as to realize the heat exchange of the system.

[0095] Based on the heat recovery systems of the above embodiments, the following presents various embodiments of the control method of the heat recovery system of this application.

[0096] like Figure 4 As shown, Figure 4 This is a flowchart of a control method for a heat recovery system provided in one embodiment of this application; the control method can be applied to the heat recovery system of the above embodiment, including but not limited to steps S110 and S120.

[0097] Step S110: Receive the target operating mode;

[0098] Step S120: Control the valve assembly according to the target operating mode to adjust the flow of refrigerant.

[0099] In one embodiment, firstly, the present application embodiment receives the target operating mode of the system; then, the present application embodiment controls the valve assembly according to the target operating mode, thereby achieving the effect of regulating the flow direction of the refrigerant.

[0100] It is worth noting that the embodiments of this application control the valve assembly through the target operating mode to adjust the flow direction of the refrigerant, thereby achieving a combination of air cooling and refrigerant pipe cooling, thereby improving the heat exchange effect of the system and improving the operational stability and reliability of the unit in extreme high temperature environments.

[0101] like Figure 5 As shown, Figure 5 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application; regarding the control of the valve assembly according to the target operating mode in step S120 above, it includes, but is not limited to, steps S210, S220 and S230.

[0102] Step S210: When the target operating mode is heating mode, control the connection between the first port and the second port, control the disconnection between the third port and the first port, and control the disconnection between the third port and the second port.

[0103] Step S220: When the target operating mode is the first cooling and hot water mixing mode, control the connection between the first port and the second port, control the connection between the third port and the first port, and control the connection between the third port and the second port.

[0104] Step S230: When the target operating mode is the second cooling and hot water mixing mode, control the connection between the first port and the second port, control the connection between the third port and the first port, and control the connection between the third port and the second port.

[0105] In one embodiment, in the heating mode, the channel between the first port and the second port is adjusted to be in a conductive state, and the channel between the third port and the first port and the channel between the third port and the second port are adjusted to be in a closed state; in the first cooling-to-hot water mixing mode, the channel between the first port and the second port, the channel between the third port and the first port, and the channel between the third port and the second port are adjusted to be in a conductive state; in the second cooling-to-hot water mixing mode, the channel between the first port and the second port, the channel between the third port and the first port, and the channel between the third port and the second port are adjusted to be in a conductive state.

[0106] Understandably, in heating mode, the outdoor unit is in an evaporation state. At this time, the air-cooling effect of the electronically controlled radiator is better, while the heat dissipation of the refrigerant pipes is weakened. Therefore, adjusting the channel between the first and second ports to be open, and adjusting the channel between the third and first ports and the channel between the third and second ports to be closed, allows the refrigerant that has exchanged heat from the compressor to the indoor heat exchanger to flow to the outdoor heat exchanger through the first and second ports of the refrigerant pipe heat dissipation module and valve assembly of the electronically controlled radiator. This enables the electronically controlled radiator to achieve air-cooling and refrigerant pipe heat dissipation, thereby improving the system's heat exchange efficiency. In addition, adjusting the channel between the first and second ports to be open, and adjusting the channel between the third and first ports and the channel between the third and second ports to be closed, can reduce the pressure loss in the pipeline.

[0107] Understandably, the first cooling-to-hot-water mixing mode enables full heat recovery of the refrigerant. In this mode, the outdoor unit is in an evaporating state, resulting in better air-cooling performance. Therefore, by adjusting the channels between the first and second ports, the third and first ports, and the third and second ports to be open, the refrigerant, after heat exchange from the compressor to the water tank, flows through the third and first ports to the indoor heat exchanger, and then through the third and second ports to the outdoor heat exchanger. This achieves air-cooling of the electronically controlled radiator, improving the system's heat exchange efficiency and enhancing the unit's operational stability and reliability in extreme high-temperature environments. Furthermore, by adjusting the channels between the first and second ports, the third and first ports, and the third and second ports to be open, pressure loss in the pipeline can be reduced.

[0108] Understandably, the second cooling-to-hot-water mixing mode enables full heat recovery of the refrigerant. In this mode, by adjusting the second solenoid valve to shut off, the refrigerant flow to the outdoor heat exchanger is stopped, thus stopping the outdoor heat exchanger from operating. The channels between the first and second ports, the third and first ports, and the third and second ports are then made open, allowing the refrigerant, after heat exchange from the compressor to the water tank, to flow through the third and first ports to the indoor heat exchanger, and then through the third and second ports to the refrigerant pipe cooling module of the electronically controlled radiator. Therefore, in the second cooling-to-hot-water mixing mode, the electronically controlled radiator can achieve both air cooling and refrigerant pipe cooling, thereby improving the system's heat exchange efficiency and enhancing the unit's operational stability and reliability in extreme high-temperature environments.

[0109] like Figure 6 As shown, Figure 6 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application; regarding the control of the valve assembly according to the target operating mode in step S120 above, it includes, but is not limited to, steps S310 and S320.

[0110] Step S310: Obtain the water temperature in the water tank;

[0111] Step S320: Control the valve assembly according to the target operating mode and water tank temperature.

[0112] In one embodiment, firstly, the water temperature of the water tank is obtained; then, the valve assembly is controlled based on the water temperature of the water tank and the target operating mode.

[0113] It is understood that the embodiments of this application control the valve assembly by the water temperature of the water tank and the target operating mode to adjust the flow of refrigerant, thereby achieving a combination of air cooling and refrigerant pipe cooling, and thus improving the heat exchange effect of the system.

[0114] like Figure 7 As shown, Figure 7 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application; regarding the above step S320, it includes, but is not limited to, steps S410, S420, S430 and S440.

[0115] Step S410: When the target operating mode is a heating and hot water mixing mode and the water temperature in the tank is greater than the first preset temperature, control the first port to shut off and the second port to shut off and the third port to shut off and the second port to connect.

[0116] Step S420: When the target operating mode is a heating and hot water mixing mode and the water temperature in the tank is less than or equal to the first preset temperature, control the connection between the first port and the second port, control the connection between the third port and the first port, and control the connection or disconnection between the third port and the second port.

[0117] Step S430: When the target operating mode is hot water production mode and the water temperature in the tank is greater than the second preset temperature, control the first port to shut off from the second port, control the third port to shut off from the first port, and control the third port to connect to the second port.

[0118] Step S440: When the target operating mode is hot water production mode and the water temperature in the tank is less than or equal to the second preset temperature, control the connection between the first port and the second port, control the connection between the third port and the first port, and control the connection or disconnection between the third port and the second port.

[0119] In one embodiment, when the water temperature in the tank is greater than a first preset temperature, the channel between the first port and the second port and the channel between the third port and the first port are adjusted to be closed, while the channel between the third port and the second port is adjusted to be open. In another embodiment, when the water temperature in the tank is less than or equal to the first preset temperature, the channel between the first port and the second port and the channel between the third port and the first port are adjusted to be open, while the channel between the third port and the second port is adjusted to be open. The states of being on or off; In the hot water production mode of this application embodiment, when the water temperature in the tank is greater than the second preset temperature, the channel between the first port and the second port and the channel between the third port and the first port will be adjusted to be in a closed state, and the channel between the third port and the second port will be adjusted to be in a conductive state; In the hot water production mode of this application embodiment, when the water temperature in the tank is less than or equal to the second preset temperature, the channel between the first port and the second port and the channel between the third port and the first port will be adjusted to be in a conductive state, and the channel between the third port and the second port will be adjusted to be in a conductive or closed state.

[0120] Understandably, in the mixed heating / hot water production mode, when the water temperature in the tank is higher than the first preset temperature, the high water temperature results in poor heat exchange and a high refrigerant temperature. The refrigerant returning from the tank does not need to flow through the refrigerant cooling module of the electronically controlled radiator. Therefore, the channels between the first and second ports and between the third and first ports are closed, while the channel between the third and second ports is open. This allows the refrigerant that has exchanged heat from the compressor to the tank to flow through the third and second ports to the outdoor heat exchanger. In other words, the refrigerant after heat exchange in the tank does not pass through the electronically controlled radiator. Furthermore, the refrigerant flowing from the compressor to the indoor heat exchanger passes through the refrigerant pipe cooling module of the electronically controlled radiator. Therefore, in the mixed heating / hot water production mode, the electronically controlled radiator can achieve both air cooling and refrigerant pipe cooling, thereby improving the system's heat exchange efficiency.

[0121] Understandably, in the mixed heating and hot water production mode, when the water temperature in the tank is less than or equal to the first preset temperature, the heat exchange effect of the tank is good, and the returned refrigerant temperature is low. The refrigerant returning from the tank can flow through the refrigerant cooling module of the electronically controlled radiator. Therefore, by adjusting the channels between the first and second ports and between the third and first ports to be in a conductive state, and adjusting the channel between the third and second ports to be in a conductive or closed state, a portion of the refrigerant flowing from the compressor to the tank after heat exchange flows to the outdoor heat exchanger through the third and second ports, and a portion flows to the refrigerant pipe cooling module of the electronically controlled radiator after passing through the third and first ports. In addition, a portion of the refrigerant flowing from the compressor to the indoor heat exchanger flows to the outdoor heat exchanger after passing through the refrigerant pipe cooling module of the electronically controlled radiator, and a portion flows to the outdoor heat exchanger through the first and third ports. Therefore, in the mixed heating and hot water production mode, the electronically controlled radiator can achieve air cooling and refrigerant pipe cooling, thereby improving the heat exchange effect of the system.

[0122] It is understood that the first preset temperature mentioned above can be 50℃, 55℃, 60℃, or 50-60℃, and can be set according to actual needs. In this embodiment of the application, the magnitude of the first preset temperature is not specifically set.

[0123] Understandably, in the hot water production mode, when the water temperature in the tank is higher than the second preset temperature, the high water temperature results in poor heat exchange and a high temperature of the returned refrigerant. The returned refrigerant does not need to flow through the refrigerant cooling module of the electronically controlled radiator. Therefore, the channels between the first and second ports and between the third and first ports are closed, while the channel between the third and second ports is open. This allows the refrigerant that has exchanged heat from the compressor to the tank to flow through the third and second ports to the outdoor heat exchanger. In other words, the refrigerant after heat exchange in the tank does not pass through the electronically controlled radiator, achieving air cooling and thus improving the system's heat exchange efficiency.

[0124] Understandably, in the hot water production mode, when the water temperature in the tank is less than or equal to the second preset temperature, the heat exchange effect of the tank is good, and the temperature of the returned refrigerant is low. The refrigerant returning from the tank can flow through the refrigerant cooling module of the electronically controlled radiator. Therefore, by adjusting the channels between the first and second ports and between the third and first ports to be in a conductive state, and adjusting the channel between the third and second ports to be in a conductive or closed state, a portion of the refrigerant that has exchanged heat from the compressor to the tank flows to the outdoor heat exchanger through the third and second ports, and a portion flows to the refrigerant pipe cooling module of the electronically controlled radiator after passing through the third and first ports. Thus, in the hot water production mode, the electronically controlled radiator can achieve both air cooling and refrigerant pipe cooling, thereby improving the heat exchange effect of the system.

[0125] It is understood that the second preset temperature mentioned above can be 50℃, 55℃, 60℃, or 50-60℃, and can be set according to actual needs. In this embodiment of the application, the magnitude of the second preset temperature is not specifically set.

[0126] like Figure 8 As shown, Figure 8 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application; regarding the control of the valve assembly according to the target operating mode in step S120 above, it includes, but is not limited to, steps S510 and S520.

[0127] Step S510: Obtain the outdoor ambient temperature;

[0128] Step S520: Control the valve assembly according to the target operating mode and outdoor ambient temperature.

[0129] In one embodiment, the present application embodiment first acquires the outdoor ambient temperature; then, the present application embodiment controls the valve assembly based on the outdoor ambient temperature and the target operating mode.

[0130] It is worth noting that the embodiments of this application control the valve assembly by the outdoor ambient temperature and the target operating mode to adjust the flow of refrigerant, thereby achieving a combination of air cooling and refrigerant pipe cooling, which improves the heat exchange effect of the system and enhances the operational stability and reliability of the unit in extreme high-temperature environments.

[0131] like Figure 9 As shown, Figure 9 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application; regarding the above step S520, it includes, but is not limited to, steps S610, S620, S630 and S640.

[0132] Step S610: When the target operating mode is cooling mode and the outdoor ambient temperature is greater than the third preset temperature, adjust the first port to be turned off and the second port to be turned on or off and the third port to be turned off.

[0133] Step S620: When the target operating mode is cooling mode and the outdoor ambient temperature is less than or equal to the third preset temperature, control the first port to conduct between the first port and the second port, control the third port to turn off between the first port and the third port to turn off between the second port.

[0134] Step S630: When the target operating mode is the third cooling and hot water mixing mode and the outdoor ambient temperature is greater than the fourth preset temperature, control the first port to shut off and the second port to shut off and the third port to shut off and the second port to connect.

[0135] Step S640: When the target operating mode is the third cooling and hot water mixing mode and the outdoor ambient temperature is less than or equal to the fourth preset temperature, control the connection between the first port and the second port, control the connection between the third port and the first port, and control the connection between the third port and the second port.

[0136] In one embodiment, when the outdoor ambient temperature is greater than a third preset temperature in the cooling mode, the channel between the first port and the second port and the channel between the third port and the second port are adjusted to be in a closed state, and the channel between the third port and the first port is adjusted to be in a conducting or closed state. In another embodiment, when the outdoor ambient temperature is less than or equal to the third preset temperature in the cooling mode, the channel between the first port and the second port is adjusted to be in a conducting state, and the channels between the third port and the first port and the third port and the second port are adjusted to be in a closed state. In yet another embodiment, when the outdoor ambient temperature is greater than a fourth preset temperature in the third cooling-to-hot-water mixing mode, the channel between the first port and the second port and the channel between the third port and the first port are adjusted to be in a closed state, and the channel between the third port and the second port is adjusted to be in a conducting state. Finally, when the outdoor ambient temperature is less than or equal to the fourth preset temperature in the third cooling-to-hot-water mixing mode, the channels between the first port and the second port, the third port and the second port, and the third port and the first port are adjusted to be in a conducting state.

[0137] Understandably, in cooling mode, when the outdoor ambient temperature is higher than the third preset temperature, the outdoor ambient temperature is high. To ensure stable and reliable unit operation, the electronically controlled radiator uses air cooling and refrigerant pipe cooling. Therefore, the channels between the first and second ports and between the third and second ports are adjusted to be closed, and the channel between the third and first ports is adjusted to be open or closed. This allows the refrigerant that has undergone heat exchange from the compressor through the outdoor heat exchanger to pass through the refrigerant pipe cooling module of the electronically controlled radiator, thereby achieving air cooling and refrigerant pipe cooling of the electronically controlled radiator, improving the system's heat exchange effect. In addition, it can improve the unit's operational stability and reliability in extreme high-temperature environments.

[0138] Understandably, in the cooling mode, when the outdoor ambient temperature is less than or equal to the third preset temperature, the outdoor ambient temperature is low. Adjusting the channel between the first and second ports to open, and adjusting the channels between the third and first ports and between the third and second ports to close, allows part of the refrigerant after heat exchange from the compressor through the outdoor heat exchanger to flow through the refrigerant pipe cooling module of the electronically controlled radiator, and part to flow through the third and first ports to the indoor heat exchanger. This achieves air cooling of the electronically controlled radiator and refrigerant pipe cooling, thereby improving the system's heat exchange efficiency.

[0139] It is understood that the aforementioned third preset temperature can be 38℃, 40℃, 43℃, or 38-43℃, and can be set according to actual needs. In this embodiment, the magnitude of the third preset temperature is not specifically set.

[0140] Understandably, in the third cooling-to-hot-water mixing mode, when the outdoor ambient temperature is higher than the fourth preset temperature, the outdoor ambient temperature is relatively high. To ensure stable and reliable unit operation, the electronically controlled radiator uses both air cooling and refrigerant pipe cooling. Therefore, the channels between the first and second ports and between the third and first ports are closed, while the channel between the third and second ports is open. This allows the refrigerant flowing from the compressor through the outdoor heat exchanger to pass through the refrigerant pipe cooling module of the electronically controlled radiator. Additionally, the refrigerant flowing from the compressor through the water tank flows through the third and second ports to the refrigerant pipe cooling module of the electronically controlled radiator. Thus, in the third cooling-to-hot-water mixing mode, when the outdoor ambient temperature is higher than the fourth preset temperature, both air cooling and refrigerant pipe cooling of the electronically controlled radiator are achieved, thereby improving the system's heat exchange efficiency. Simultaneously, this enhances the unit's operational stability and reliability in extreme high-temperature environments.

[0141] Understandably, in the third cooling-to-hot-water mixing mode, when the outdoor ambient temperature is less than or equal to the fourth preset temperature, the outdoor ambient temperature is relatively low. Adjusting the channels between the first and second ports, the third and second ports, and the third and first ports ensures they are open. This allows part of the refrigerant flowing from the compressor through the outdoor heat exchanger to pass through the refrigerant pipe cooling module of the electronically controlled radiator, and part to flow through the third and first ports to the indoor heat exchanger. Additionally, the refrigerant flowing from the compressor through the water tank also flows through the third and first ports to the indoor heat exchanger. Therefore, in the third cooling-to-hot-water mixing mode, when the outdoor ambient temperature is less than or equal to the fourth preset temperature, both air cooling of the electronically controlled radiator and refrigerant pipe cooling are achieved, thereby improving the system's heat exchange efficiency.

[0142] It is understood that the fourth preset temperature mentioned above can be 38℃, 40℃, 43℃, or 38-43℃, and can be set according to actual needs. In this embodiment of the application, the magnitude of the fourth preset temperature is not specifically set.

[0143] like Figure 10 As shown, Figure 10 This is a flowchart of a control method for a heat recovery system provided in another embodiment of this application; when the target operating mode is a second cooling and hot water mixing mode, the control method for the heat recovery system also includes, but is not limited to, steps S710 and S720.

[0144] Step S710: Obtain the outdoor ambient temperature;

[0145] Step S720: Control the fan of the outdoor heat exchanger according to the outdoor ambient temperature.

[0146] In one embodiment, the present application embodiment first obtains the outdoor ambient temperature; then, the present application embodiment controls the fan of the outdoor heat exchanger based on the outdoor ambient temperature.

[0147] It is worth noting that, since this application can control the fan of the outdoor heat exchanger according to the outdoor ambient temperature, it can ensure the stability and reliability of the unit operation.

[0148] Regarding the above step S720, it includes the following steps: when the outdoor ambient temperature is greater than the fifth preset temperature, control the fan of the outdoor heat exchanger to run at the first speed.

[0149] Understandably, when the outdoor ambient temperature is higher than the fifth preset temperature, the outdoor ambient temperature is high. By controlling the outdoor heat exchanger fan to operate at the first speed, the stability and reliability of the unit's operation can be ensured. In addition, by turning on the fan, the heat dissipation effect of the electronically controlled radiator can be enhanced, thereby improving the unit's operational stability and reliability in extreme high-temperature environments.

[0150] It is understood that the fifth preset temperature mentioned above can be 38℃, 40℃, 43℃, or 38-43℃, and can be set according to actual needs. In this embodiment of the application, the magnitude of the fifth preset temperature is not specifically set.

[0151] For example, the first rotational speed is given by the formula Determined, where R is the first rotational speed and N is the first coefficient. Outdoor ambient temperature The fifth preset temperature

[0152] It is understood that the first coefficient N mentioned above can be 20, 40, 60, or between 20 and 60, and can be set according to actual needs. This application embodiment does not specifically limit the size of the first coefficient N.

[0153] Based on the control methods of the heat recovery system in the above embodiments, several overall embodiments of the control methods of the heat recovery system of this application are presented below.

[0154] like Figure 11 As shown, Figure 11 This is an overall flowchart of a control method for a heat recovery system provided in one embodiment of this application; the control method can be applied to the heat recovery system of the above embodiment, and the specific steps are as follows:

[0155] Step S810: Receive the target operating mode;

[0156] Step S820: Control the valve assembly according to the target operating mode to adjust the flow of refrigerant;

[0157] Step S830: Target operating mode determination. If the target operating mode is heating mode, proceed to step S831; if the target operating mode is first cooling and hot water mixing mode, proceed to step S832; if the target operating mode is second cooling and hot water mixing mode, proceed to step S833.

[0158] Step S831: Control the first port to conduct between the first port and the second port, control the third port to turn off between the first port and the third port, and control the third port to turn off between the second port.

[0159] Step S832: Control the connection between the first port and the second port, control the connection between the third port and the first port, and control the connection between the third port and the second port;

[0160] Step S833: Control the connection between the first port and the second port, control the connection between the third port and the first port, and control the connection between the third port and the second port;

[0161] Step S840: Obtain the outdoor ambient temperature;

[0162] Step S840: Determine the outdoor ambient temperature. If the outdoor ambient temperature is greater than the fifth preset temperature, proceed to step S850.

[0163] Step S850: Control the outdoor heat exchanger fan to run at the first speed.

[0164] Heating mode: Adjusting the channel between the first port and the second port to be in the conducting state, adjusting the channel between the third port and the first port to be in the closed state, and adjusting the channel between the third port and the second port to be in the closed state can reduce pipeline pressure loss, because the outdoor heat exchanger is in the evaporation state at this time, the air cooling heat dissipation is better, and the heat dissipation of the refrigerant pipe can be weakened.

[0165] First cooling and hot water mixing mode: At this time, the outdoor heat exchanger is in evaporation state, and the air cooling heat dissipation is better. Adjust the channel between the first port and the second port to be in a conductive state, adjust the channel between the third port and the first port to be in a conductive state, and adjust the channel between the third port and the second port to be in a conductive state. Bypass the refrigerant pipe to dissipate heat and reduce pressure loss.

[0166] Second cooling / hot water mixing mode: In this mode, the outdoor heat exchanger is off, and refrigerant pipes are used for heat dissipation. Further, it checks if the outdoor ambient temperature is higher than the fifth preset temperature. If the outdoor ambient temperature is higher than the fifth preset temperature, it indicates a high ambient temperature. To ensure stable and reliable unit operation, the outdoor heat exchanger fan is turned on to enhance electronically controlled heat dissipation. Otherwise, the outdoor heat exchanger fan is not turned on. The operating speed of the outdoor fan is specified.

[0167] It is understood that the fifth preset temperature mentioned above can be 38℃, 40℃, 43℃, or 38-43℃, and can be set according to actual needs. In this embodiment of the application, the magnitude of the fifth preset temperature is not specifically set.

[0168] For example, the first rotational speed is given by the formula Determined, where R is the first rotational speed and N is the first coefficient. Outdoor ambient temperature The fifth preset temperature

[0169] It is understood that the first coefficient N mentioned above can be 20, 40, 60, or between 20 and 60, and can be set according to actual needs. This application embodiment does not specifically limit the size of the first coefficient N.

[0170] It is worth noting that by designing a system and control logic with two electronically controlled heat dissipation methods—air cooling and refrigerant pipe cooling—the heat recovery unit achieves reliable and efficient operation over a wide ambient temperature range. It enables operation in a second cooling-to-hot-water hybrid mode, while simultaneously ensuring reliable temperature operation in cooling mode under extreme high-temperature environments.

[0171] like Figure 12 As shown, Figure 12 This is an overall flowchart of a control method for a heat recovery system provided in another embodiment of this application; this control method can be applied to the heat recovery system of the above embodiment, and the specific steps are as follows:

[0172] Step S910: Receive the target operating mode;

[0173] Step S920: Obtain the water temperature in the water tank;

[0174] Step S930: Adjust the flow of refrigerant according to the target operating mode and water tank temperature control valve assembly;

[0175] Step S940: Determine the target operating mode and water tank temperature. If the target operating mode is a heating and hot water mixed mode and the water tank temperature is greater than the first preset temperature, or the target operating mode is a hot water mode and the water tank temperature is greater than the second preset temperature, then proceed to step S950. If the target operating mode is a heating and hot water mixed mode and the water tank temperature is less than or equal to the first preset temperature, or the target operating mode is a hot water mode and the water tank temperature is less than or equal to the second preset temperature, then proceed to step S950.

[0176] Step S950: Control the first port to turn off and the second port to turn off the third port to turn off and the first port to turn on;

[0177] Step S960: Control the connection between the first port and the second port, control the connection between the third port and the first port, and control the connection or disconnection between the third port and the second port.

[0178] Heating / Hot Water Mixing Mode: Adjusting the channel between the first and second ports to be open, adjusting the channel between the third and first ports to be open, and adjusting the channel between the third and second ports to be open or closed can reduce pipeline pressure loss. When the water temperature in the tank is higher than the first preset temperature, adjusting the channel between the first and second ports to be closed, adjusting the channel between the third and first ports to be closed, and adjusting the channel between the third and second ports to be open will result in a high water temperature in the tank, poor heat exchange, and a higher temperature refrigerant return, which does not need to flow through the refrigerant heat dissipation pipe.

[0179] Hot water mode: Adjusting the channel between the first and second ports to be open, adjusting the channel between the third and first ports to be open, and adjusting the channel between the third and second ports to be open or closed can reduce pipe pressure loss. When the water temperature in the tank is higher than the second preset temperature, adjusting the channel between the first and second ports to be closed, adjusting the channel between the third and first ports to be closed, and adjusting the channel between the third and second ports to be open will result in a high water temperature in the tank, poor heat exchange, and a higher temperature refrigerant that does not need to flow through the refrigerant cooling pipe.

[0180] It is understood that the first preset temperature mentioned above can be 50℃, 55℃, 60℃, or 50-60℃, and can be set according to actual needs. In this embodiment of the application, the magnitude of the first preset temperature is not specifically set.

[0181] It is understood that the second preset temperature mentioned above can be 50℃, 55℃, 60℃, or 50-60℃, and can be set according to actual needs. In this embodiment of the application, the magnitude of the second preset temperature is not specifically set.

[0182] It is worth noting that by designing a system and control logic with two electronically controlled heat dissipation methods—air cooling and refrigerant pipe cooling—the heat recovery unit can achieve reliable and efficient operation under a wide ambient temperature range.

[0183] like Figure 13 As shown, Figure 13 This is an overall flowchart of a control method for a heat recovery system provided in another embodiment of this application; this control method can be applied to the heat recovery system of the above embodiment, and the specific steps are as follows:

[0184] Step S1010: Receive the target operating mode;

[0185] Step S1020: Obtain the outdoor ambient temperature;

[0186] Step S1030: Control the valve assembly according to the target operating mode and outdoor ambient temperature to adjust the flow of refrigerant;

[0187] Step S1040: Determine the target operating mode and outdoor ambient temperature. If the target operating mode is cooling mode and the outdoor ambient temperature is greater than the third preset temperature, proceed to step S1050; if the target operating mode is cooling mode and the outdoor ambient temperature is less than or equal to the third preset temperature, proceed to step S1060; if the target operating mode is a third cooling-to-hot water mixing mode and the outdoor ambient temperature is greater than the fourth preset temperature, proceed to step S1070; if the target operating mode is a third cooling-to-hot water mixing mode and the outdoor ambient temperature is less than or equal to the fourth preset temperature, proceed to step S1080.

[0188] Step S1050: Control the first port to turn off and the second port to turn on or off the third port to turn off and the second port to turn off.

[0189] Step S1060: Control the first port to conduct between the first port and the second port, control the third port to turn off between the first port and the third port, and control the third port to turn off between the second port.

[0190] Step S1070: Control the first port to turn off and the second port to turn off and the third port to turn on and the second port to turn on.

[0191] Step S1080: Control the connection between the first port and the second port, control the connection between the third port and the first port, and control the connection between the third port and the second port.

[0192] Cooling Mode: In this mode, the system checks if the outdoor ambient temperature is higher than the third preset temperature. If the outdoor ambient temperature is higher, indicating a high ambient temperature, to ensure stable and reliable unit operation, refrigerant pipe cooling combined with air cooling is used. In this mode, the channel between the first and second ports is closed, and the channel between the third and first ports is either open or closed. Adjusting the channel between the third and second ports to be closed enhances heat dissipation. When the outdoor ambient temperature is lower than or equal to the third preset temperature, air cooling is used. The channel between the first and second ports is open, and the channel between the third and first ports is closed. Adjusting the channel between the third and second ports to be closed bypasses the refrigerant pipes for heat dissipation, ensuring efficient unit operation.

[0193] The third cooling / hot water mixing mode: In this mode, it checks if the outdoor ambient temperature is higher than the fourth preset temperature. If the outdoor ambient temperature is higher than the fourth preset temperature, it uses refrigerant pipe cooling + air cooling. In this mode, the channel between the first and second ports is closed, the channel between the third and first ports is closed, and the channel between the third and second ports is open to enhance heat dissipation. If the outdoor ambient temperature is lower than or equal to the fourth preset temperature, it uses air cooling. The channel between the first and second ports is open, the channel between the third and first ports is open, and the channel between the third and second ports is open, bypassing the refrigerant pipes for heat dissipation to ensure efficient unit operation.

[0194] It is worth noting that by designing a system and control logic with two electronically controlled heat dissipation methods—air cooling and refrigerant pipe cooling—the heat recovery unit achieves reliable and efficient operation over a wide ambient temperature range. Simultaneously, it ensures reliable temperature operation in cooling mode under extreme high-temperature environments.

[0195] like Figure 14 As shown, Figure 14This is a schematic diagram of the structure of a controller for executing a control method of a control circuit according to an embodiment of this application. The controller 1300 implemented in this application includes: a processor 1310, a memory 1320, and a computer program stored in the memory 1320 and executable on the processor 1310, wherein... Figure 14 The example uses a processor 1310 and a memory 1320.

[0196] The processor 1310 and the memory 1320 can be connected via a bus or other means. Figure 14 Taking the example of a connection between China and Israel via a bus.

[0197] Memory 1320, as a non-transitory computer-readable storage medium, can be used to store non-transitory software programs and non-transitory computer-executable programs. Furthermore, memory 1320 may include high-speed random access memory, and may also include non-transitory memory, such as at least one disk storage device, flash memory device, or other non-transitory solid-state storage device. In some embodiments, memory 1320 may optionally include remotely located memories 1320 relative to processor 1310, which can be connected to controller 1300 via a network. Examples of such networks include, but are not limited to, the Internet, intranets, local area networks, mobile communication networks, and combinations thereof.

[0198] Those skilled in the art will understand that Figure 14 The device structure shown does not constitute a limitation on the controller 1300 and may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0199] exist Figure 14 In the controller 1300 shown, the processor 1310 can be used to call the control program stored in the memory 1320 to implement the control method described above. Specifically, the non-transitory software program and instructions required to implement the control method of the above embodiment are stored in the memory 1320, and when executed by the processor 1310, the control method of the above embodiment is executed.

[0200] It is worth noting that, since the controller 1300 of this application embodiment can execute the control method of any of the above embodiments, the specific implementation method and technical effect of the controller 1300 of this application embodiment can refer to the specific implementation method and technical effect of the control method of any of the above embodiments.

[0201] Furthermore, one embodiment of this application also provides a computer-readable storage medium storing computer-executable instructions for performing the control method described above. Exemplarily, the above-described control method is performed... Figures 4 to 13 The methods and steps in the text.

[0202] It is worth noting that, since the computer-readable storage medium of this application embodiment can execute the control method of any of the above embodiments, the specific implementation and technical effects of the computer-readable storage medium of this application embodiment can be referred to the specific implementation and technical effects of the control method of any of the above embodiments.

[0203] It will be understood by those skilled in the art that all or some of the steps and systems in the methods disclosed above can be implemented as software, firmware, hardware, and suitable combinations thereof. Some or all of the physical components can be implemented as software executed by a processor, such as a central processing unit, digital signal processor, or microprocessor, or as hardware, or as an integrated circuit, such as an application-specific integrated circuit. Such software can be distributed on a computer-readable medium, which can include computer storage media (or non-transitory media) and communication media (or transient media). As is known to those skilled in the art, the term computer storage media includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media includes, but is not limited to, RAM, ROM, EEPROM, flash memory or other memory technologies, CD-ROM, digital versatile disc (DVD) or other optical disc storage, magnetic cartridges, magnetic tape, disk storage or other magnetic storage devices, or any other medium that can be used to store desired information and is accessible to a computer. Furthermore, as is known to those skilled in the art, communication media typically include computer-readable instructions, data structures, program modules, or other data in modulated data signals such as carrier waves or other transmission mechanisms, and may include any information delivery medium.

[0204] The above provides a detailed description of the preferred embodiments of this application. However, this application is not limited to the above-described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of this application. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A heat recovery system, characterized in that, include: Indoor heat exchanger, outdoor heat exchanger, water tank and compressor; An electronically controlled radiator includes an air-cooled heat dissipation module and a refrigerant pipe heat dissipation module, wherein the indoor heat exchanger is connected to the outdoor heat exchanger through the refrigerant pipe heat dissipation module; The valve assembly is provided with a first port, a second port and a third port. The first port is connected between the indoor heat exchanger and the refrigerant pipe heat dissipation module, the second port is connected between the outdoor heat exchanger and the refrigerant pipe heat dissipation module, and the third port is connected to the water tank. The system comprises a first four-way valve, a second four-way valve, and a third four-way valve. The first four-way valve has its first port connected to one end of the compressor, its second port connected to the indoor heat exchanger, its third port connected to the other end of the compressor, and its fourth port connected to the third port. The second four-way valve has its first port connected to one end of the compressor, its second port connected to the water tank, its third port connected to the other end of the compressor, and its fourth port connected to the third port. The third four-way valve has its first port connected to one end of the compressor, its second port connected to the first port, its third port connected to the other end of the compressor, and its fourth port connected to both the third port and the outdoor heat exchanger.

2. The heat recovery system according to claim 1, characterized in that, The valve assembly includes: A three-way valve, wherein the first port of the three-way valve is connected between the indoor heat exchanger and the refrigerant pipe heat dissipation module, the second port of the three-way valve is connected between the outdoor heat exchanger and the refrigerant pipe heat dissipation module, and the third port of the three-way valve is connected to the water tank.

3. The heat recovery system according to claim 1, characterized in that, The valve assembly includes: A first two-way valve and a second two-way valve, one end of the first two-way valve is connected between the indoor heat exchanger and the refrigerant pipe heat dissipation module, one end of the second two-way valve is connected between the outdoor heat exchanger and the refrigerant pipe heat dissipation module, and the water tank is connected between the other ends of the first two-way valve and the other ends of the second two-way valve.

4. The heat recovery system according to claim 1, characterized in that, The valve assembly includes: The system comprises a first two-way valve, a second two-way valve, and a third two-way valve. One end of the first two-way valve is connected between the indoor heat exchanger and the refrigerant pipe heat dissipation module. One end of the second two-way valve is connected between the outdoor heat exchanger and the refrigerant pipe heat dissipation module. One end of the third two-way valve is connected to the water tank. The other ends of the first two-way valve, the second two-way valve, and the third two-way valve are interconnected.

5. The heat recovery system according to claim 1, characterized in that, The heat recovery system also includes: A first solenoid valve, a second solenoid valve, and a third solenoid valve are provided, wherein the first solenoid valve is disposed between the valve assembly and the indoor heat exchanger, the second solenoid valve is disposed between the valve assembly and the water tank, and the third solenoid valve is disposed between the valve assembly and the outdoor heat exchanger.

6. A control method for a heat recovery system, characterized in that, The method, applied to the heat recovery system as described in any one of claims 1 to 5, comprises: Receive the target operating mode; The valve assembly is controlled according to the target operating mode to regulate the flow of refrigerant.

7. The control method for the heat recovery system according to claim 6, characterized in that, The control of the valve assembly according to the target operating mode includes one of the following: When the target operating mode is heating mode, the first port and the second port are connected, the third port and the first port are disconnected, and the third port and the second port are disconnected. When the target operating mode is the first cooling and hot water mixing mode, the first port and the second port are connected, the third port and the first port are connected, and the third port and the second port are connected. When the target operating mode is the second cooling and hot water mixing mode, the first port and the second port are connected, the third port and the first port are connected, and the third port and the second port are connected.

8. The control method for the heat recovery system according to claim 6, characterized in that, The step of controlling the valve assembly according to the target operating mode includes: Obtain the water temperature in the water tank; The valve assembly is controlled according to the target operating mode and the water temperature in the water tank.

9. The control method for the heat recovery system according to claim 8, characterized in that, The valve assembly that controls the valve assembly according to the target operating mode and the water temperature in the water tank includes one of the following: When the target operating mode is a heating and hot water mixing mode and the water temperature in the tank is greater than the first preset temperature, the first port and the second port are shut off, the third port and the first port are shut off, and the third port and the second port are connected. When the target operating mode is a heating and hot water mixing mode and the water temperature in the water tank is less than or equal to the first preset temperature, control the first port and the second port to be connected, control the third port and the first port to be connected, and control the third port and the second port to be connected or disconnected. When the target operating mode is hot water production mode and the water temperature in the tank is greater than the second preset temperature, the first port and the second port are shut off, the third port and the first port are shut off, and the third port and the second port are connected. When the target operating mode is hot water production mode and the water temperature in the water tank is less than or equal to the second preset temperature, the system controls the connection between the first port and the second port, controls the connection between the third port and the first port, and controls the connection or disconnection between the third port and the second port.

10. The control method for the heat recovery system according to claim 6, characterized in that, The step of controlling the valve assembly according to the target operating mode includes: Obtain the outdoor ambient temperature; The valve assembly is controlled according to the target operating mode and the outdoor ambient temperature.

11. The control method for the heat recovery system according to claim 10, characterized in that, The method of controlling the valve assembly according to the target operating mode and the outdoor ambient temperature includes one of the following: When the target operating mode is cooling mode and the outdoor ambient temperature is greater than the third preset temperature, the control switches between the first port and the second port, controls the connection or disconnection between the third port and the first port, and controls the connection between the third port and the second port to be turned off. When the target operating mode is cooling mode and the outdoor ambient temperature is less than or equal to the third preset temperature, control the first port and the second port to be connected, control the third port and the first port to be disconnected, and control the third port and the second port to be disconnected. When the target operating mode is the third cooling and hot water mixing mode and the outdoor ambient temperature is greater than the fourth preset temperature, the control switches the first port and the second port to be turned off, the control switches the third port and the first port to be turned off, and the control switches the third port and the second port to be turned on. When the target operating mode is the third cooling and hot water mixing mode and the outdoor ambient temperature is less than or equal to the fourth preset temperature, the first port and the second port are connected, the third port and the first port are connected, and the third port and the second port are connected.

12. The control method for the heat recovery system according to claim 7, characterized in that, When the target operating mode is the second cooling-to-hot water mixing mode, the method further includes: Obtain the outdoor ambient temperature; The fan of the outdoor heat exchanger is controlled according to the outdoor ambient temperature.

13. The control method for the heat recovery system according to claim 12, characterized in that, The fan that controls the outdoor heat exchanger according to the outdoor ambient temperature includes: When the outdoor ambient temperature is greater than the fifth preset temperature, the fan of the outdoor heat exchanger is controlled to run at the first speed.

14. The control method for the heat recovery system according to claim 13, characterized in that, The first rotational speed is obtained by the following formula: Where R is the first rotational speed and N is the first coefficient. The outdoor ambient temperature is... The fifth preset temperature.

15. A controller, characterized in that, include: The system includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor, when executing the computer program, performs the control method of the heat recovery system as described in any one of claims 6 to 14.

16. A computer-readable storage medium, characterized in that: The system stores computer-executable instructions for performing a control method for a heat recovery system as described in any one of claims 6 to 14.

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