Heat exchange system and control method thereof

Abstract

The invention discloses a heat exchange system and a control method thereof, and belongs to the field of heat energy management. Wherein the heat exchange system is matched with a heat pump dryer and a first condenser, and a first heat exchange module and a second heat exchange module which can provide a drying function and a condensation drainage function in an interchanging manner are arranged in the heat pump dryer, so that the heat exchange system meets the daily refrigeration and heating functions; the heat pump dryer performs drying operation by utilizing condensation heat of the air conditioning system, and performs condensation drainage operation by utilizing evaporation cold energy, so that efficient utilization of energy is realized; the first condenser can conduct auxiliary heat exchange when drying operation is not needed, and therefore the heat exchange system can meet the normal refrigerating or heating requirement of the air conditioning system, the energy utilization rate is increased, the heat island effect caused by direct discharging of condensation heat can be effectively relieved, and the comfort of a user is improved.

Description

Technical Field

[0001] The present application belongs to the field of thermal energy management technology, and specifically relates to a heat exchange system and a control method thereof. Background Art

[0002] With the development of science and technology, air conditioners are used more and more widely, especially in environments with higher temperatures, where air conditioners are indispensable.

[0003] Although existing air conditioners can help users improve their comfort by adjusting the indoor temperature, they release a large amount of condensation heat during operation. As the condensation heat is discharged, it will not only cause the air temperature around residential buildings to rise, forming a "heat island effect", but also because this heat is discharged in vain and not utilized, it will also cause the problem of low energy utilization. Summary of the invention

[0004] The purpose of the embodiments of the present application is to provide a heat exchange system and a control method, which at least solves the problem that the existing air-conditioning system has low energy utilization rate and is prone to form a heat island effect.

[0005] In a first aspect, the present invention provides a heat exchange system

[0006] The heat exchange system includes a compressor, an indoor unit, a heat pump dryer and a first condenser;

[0007] The heat pump dryer comprises a first heat exchange module and a second heat exchange module arranged at intervals, the compressor is connected to the first heat exchange module and the indoor unit in sequence through a fourth valve to form a loop, the first condenser is arranged in parallel with the first heat exchange module, and the indoor unit is arranged in parallel with the second heat exchange module;

[0008] One of the first heat exchange module and the second heat exchange module is used for drying operation, and the other of the first heat exchange module and the second heat exchange module is used for condensation and drainage operation;

[0009] A first valve and a second valve are respectively provided on the connecting pipelines between the compressor, the first heat exchange module and the first condenser.

[0010] Optionally, in the heat exchange system, both the first heat exchange module and the second heat exchange module are equipped with a water receiving tray.

[0011] Optionally, the heat exchange system further includes a second condenser and a third valve;

[0012] The first heat exchange module and the first condenser are connected in parallel to the indoor unit and the second heat exchange module through a main pipe; the second condenser and the third valve are arranged in parallel on the main pipe.

[0013] Optionally, in the heat exchange system, the indoor unit includes a first throttling device and an indoor heat exchanger arranged in series, and the second heat exchange module is connected to the main line through the second throttling device.

[0014] Optionally, in the heat exchange system, the first throttling device and the second throttling device respectively include expansion valves.

[0015] Optionally, in the heat exchange system, a temperature sensor is also provided on the main pipe for obtaining the refrigerant temperature and for adjusting the opening of the third valve, and for adjusting the throttling intensity of the first throttling device and the second throttling device.

[0016] Optionally, the first condenser is a water-cooled condenser, and the heat exchange system further includes a water tank for providing cooling water to the first condenser.

[0017] Optionally, in the heat exchange system, the heat pump dryer further comprises a drying cabin disposed on top of the first heat exchange module and the second heat exchange module.

[0018] In a second aspect, an embodiment of the present application provides a control method for the above-mentioned heat exchange system, the control method comprising:

[0019] According to the working mode, the operation of the indoor unit and the second heat exchange module is controlled, and the opening and closing of the first valve and the second valve are controlled.

[0020] Optionally, in the control method, according to the working mode, controlling the operation of the indoor unit and the second heat exchange module, and controlling the opening and closing of the first valve and the second valve, includes:

[0021] When the working mode includes a drying mode, controlling the first valve to be opened, the second valve to be closed, and controlling the second heat exchange module to be started;

[0022] When the working mode does not include a drying mode, the first valve is controlled to be closed, the second valve is controlled to be opened, and the second heat exchange module is controlled to be closed.

[0023] Optionally, in the control method, according to the working mode, controlling the operation of the indoor unit and the second heat exchange module, and controlling the opening and closing of the first valve and the second valve, further includes:

[0024] When the working mode includes a cooling mode, controlling the output end of the compressor to be connected to the first heat exchange module and the first condenser, and controlling the input end of the compressor to be connected to the indoor unit and the second heat exchange module;

[0025] When the working mode includes a heating mode, the input end of the compressor is controlled to be connected to the first heat exchange module and the first condenser, and the output end of the compressor is controlled to be connected to the indoor unit and the second heat exchange module.

[0026] Optionally, in the control method, when the heat exchange system further includes a second condenser and a third valve, the first heat exchange module and the first condenser are connected in parallel to the indoor unit and the second heat exchange module through a main pipe, and the second condenser and the third valve are arranged in parallel on the main pipe, the control method further includes:

[0027] When the working mode includes a heating mode, controlling the third valve to be closed;

[0028] When the working mode includes the cooling mode, the third valve is controlled to be opened.

[0029] In a third aspect, an embodiment of the present application provides a control device for the above-mentioned heat exchange system, comprising:

[0030] An acquisition module, used for acquiring the working mode of the heat exchange system;

[0031] A control module is used to control the opening and closing of the indoor unit and the second heat exchange module, and control the opening and closing of the first valve and the second valve according to the working mode.

[0032] Optionally, the control module includes:

[0033] a first control unit, configured to control the first valve to be opened, the second valve to be closed, and the second heat exchange module to be started when the working mode includes a drying mode;

[0034] The second control unit is used for controlling the first valve to be closed, the second valve to be opened, and the second heat exchange module to be closed when the working mode does not include a drying mode.

[0035] Optionally, the control module further includes:

[0036] a third control unit, configured to control the output end of the compressor to be connected to the first heat exchange module and the first condenser, and control the input end of the compressor to be connected to the indoor unit and the second heat exchange module when the working mode includes a cooling mode;

[0037] A fourth control unit is used to control the input end of the compressor to be connected to the first heat exchange module and the first condenser, and to control the output end of the compressor to be connected to the indoor unit and the second heat exchange module when the working mode includes a heating mode.

[0038] Optionally, when the heat exchange system further includes a second condenser and a third valve, the first heat exchange module and the first condenser are connected in parallel to the indoor unit and the second heat exchange module through a main pipe, and the second condenser and the third valve are arranged in parallel on the main pipe, the control module further includes:

[0039] a fifth control unit, configured to control the third valve to close when the working mode includes a heating mode;

[0040] The sixth control unit is used to control the third valve to open when the working mode includes a cooling mode.

[0041] In a fourth aspect, an embodiment of the present application provides an electronic device, comprising: a processor, a communication interface, a memory, and a communication bus; wherein the processor, the communication interface, and the memory communicate with each other via the communication bus;

[0042] Memory, used to store computer programs;

[0043] The processor is used to implement the steps of the control method described in the second aspect when executing the program stored in the memory.

[0044] In a fifth aspect, an embodiment of the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the control method described in the second aspect above.

[0045] Compared with the prior art, this application has the following advantages:

[0046] In an embodiment of the present application, the heat exchange system includes a compressor, an indoor unit, a heat pump dryer and a first condenser. The heat pump dryer includes a first heat exchange module and a second heat exchange module arranged at intervals. The compressor is connected to the first heat exchange module and the indoor unit in sequence through a fourth valve to form a loop. The first condenser is arranged in parallel with the first heat exchange module, and the indoor unit is arranged in parallel with the second heat exchange module. The first valve and the second valve are respectively arranged on the connecting pipelines between the compressor and the first heat exchange module and the first condenser. Among them, the heat exchange system is equipped with a heat pump dryer and a first condenser, and the heat pump dryer is provided with a first heat exchange module and a second heat exchange module which can interchangeably provide drying function and condensation drainage function, so that the heat exchange system can meet the daily cooling and heating functions while utilizing the condensation heat of the air-conditioning system for drying operations through the heat pump dryer and utilizing the evaporative cooling capacity for condensation drainage operations, thereby realizing efficient utilization of energy; and the first condenser can perform auxiliary heat exchange when there is no need for drying operations. Therefore, the heat exchange system provided in the embodiment of the present application can not only meet the normal cooling or heating needs of the air-conditioning system, but also improve the energy utilization rate, can effectively alleviate the heat island effect caused by the direct discharge of condensation heat, and improve user comfort. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic diagram showing the structure of a heat exchange system provided in an embodiment of the present application;

[0048] Figure 2 A schematic diagram showing a first operating state of the heat exchange system provided in an embodiment of the present application;

[0049] Figure 3 A schematic diagram showing a second operating state of the heat exchange system provided in an embodiment of the present application;

[0050] Figure 4 A schematic diagram showing a third operating state of the heat exchange system provided in an embodiment of the present application;

[0051] Figure 5 A schematic diagram showing a fourth operating state of the heat exchange system provided in an embodiment of the present application;

[0052] Figure 6 A schematic diagram showing a fifth operating state of the heat exchange system provided in an embodiment of the present application;

[0053] Figure 7 A schematic diagram showing a sixth operating state of the heat exchange system provided in an embodiment of the present application;

[0054] Figure 8 A flow chart showing a control method for a heat exchange system provided in an embodiment of the present application;

[0055] Fig. 9 A schematic diagram showing the structure of a control device for a heat exchange system provided in an embodiment of the present application;

[0056] Fig.10 A schematic diagram showing the structure of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0057] The term "first" or "second" in the specification and claims of this application may include one or more of the features explicitly or implicitly. In the description of this application, unless otherwise specified, "plurality" means two or more. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally means that the objects connected before and after are in an "or" relationship.

[0058] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0059] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0060] Usually, an air conditioner is mainly composed of an air conditioning system, which includes a compressor, a condenser, an expansion valve, and an evaporator; the compressor can compress the refrigerant, and then the refrigerant enters the condenser, and then the refrigerant is transferred from the condenser to the expansion valve, and then the refrigerant enters the evaporator through the expansion valve, and the evaporator has a water inlet and a water outlet, and the cooling water enters the evaporator through the water inlet, exchanges heat with the refrigerant in the evaporator, and then the cooling water after the heat exchange flows out from the water outlet, and the water outlet is connected to a fan coil, and the fan coil can exchange heat with the environment to reduce the temperature of the environment. The refrigerant after heat exchange re-enters the compressor. In this process, the refrigerant passes through the compressor, condenser, expansion valve and evaporator to form a cycle. However, a large amount of condensation heat will be released during the above operation. With the discharge of condensation heat, it will not only cause the air temperature around the residential building to rise, forming a "heat island effect", but also because the heat is discharged in vain without being used, it will also cause the problem of low energy utilization.

[0061] In view of the above problems, the present application provides a heat exchange system, such as Figure 1 As shown, the heat exchange system includes: a compressor 10, an indoor unit 20, a heat pump dryer 30 and a first condenser 40; the heat pump dryer 30 includes a first heat exchange module 31 and a second heat exchange module 32 arranged at intervals, the compressor 10 is connected to the first heat exchange module 31 and the indoor unit 20 in sequence through a fourth valve 54 to form a loop, the first condenser 40 is arranged in parallel with the first heat exchange module 31, and the indoor unit 20 is arranged in parallel with the second heat exchange module 32, that is, the first condenser 40 and the first heat exchange module 31 are connected in parallel to one end of the compressor 10, and the indoor unit 20 and the second heat exchange module 32 are connected in parallel to the other end of the compressor 10, and the first A condenser 40 and a first heat exchange module 31 are connected to the indoor unit 20 and a second heat exchange module 32, respectively, so that the refrigerant can enter the other end of the compressor 10 from one end of the compressor 10 via the first condenser 40 and the indoor unit 20 in sequence, or the refrigerant can enter the other end of the compressor 10 from one end of the compressor 10 via the first condenser 40 and the second heat exchange module 32 in sequence, or the refrigerant can enter the other end of the compressor 10 from one end of the compressor 10 via the first heat exchange module 31 and the indoor unit 20 in sequence, or the refrigerant can enter the other end of the compressor 10 from one end of the compressor 10 via the first heat exchange module 31 and the second heat exchange module 32 in sequence.

[0062] In the embodiment of the present application, a first valve 51 and a second valve 52 are respectively provided on the connecting pipelines between the compressor 10 and the first heat exchange module 31 and the first condenser 40, which can respectively open and close the pipelines between the compressor 10 and the first heat exchange module 31 and the first condenser 40, thereby controlling whether the refrigerant flows through the first heat exchange module 31 and the first condenser 40, that is, controlling whether the heat pump dryer 30 performs a drying operation, and controlling whether the first condenser 40 performs a condensing heat exchange operation.

[0063] Among them, the above-mentioned heat exchange system is an air-conditioning system, a duct unit or a patio unit with cooling and heating functions, that is, it has a cooling mode and a heating mode, and can cool or heat the indoor room through the indoor unit 20; the above-mentioned first valve 51 and the second valve 52 can both be solenoid valves, which can be automatically controlled to open or close according to the mode of the heat exchange system.

[0064] Optionally, in the embodiment of the present application, the entire system uses refrigerant as the heat exchange medium throughout the entire process, thereby improving the efficiency of heat exchange in the system.

[0065] Among them, when the system is in cooling mode, after the first valve 51 is opened, the high-pressure and high-temperature refrigerant can enter the first heat exchange module 31, and then be throttled and converted into low-temperature and low-pressure refrigerant to enter the second heat exchange module 32 and / or the indoor unit 20 to release cold air, thereby realizing the use of the first heat exchange module 31 in the heat pump dryer 30 as a drying module and utilizing the condensation heat for drying operations, and the use of the second heat exchange module 32 as a condensation drainage module to perform condensation and drainage operations on the heat pump dryer 30; when the system is in cooling mode, after the second valve 52 is opened, the high-pressure and high-temperature refrigerant can enter the first condenser 40, thereby releasing heat to the refrigerant through the first condenser 40, and then be throttled and converted into low-temperature and low-pressure refrigerant to enter the second heat exchange module 32 and / or the indoor unit 20 releases cold energy; when the system is in heating mode, after the first valve 51 is opened, the high-pressure and high-temperature refrigerant can enter the second heat exchange module 32 and / or the indoor unit 20, and then be converted into a low-temperature and low-pressure refrigerant to enter the first heat exchange module 31, so as to realize the second heat exchange module 32 in the heat pump dryer 30 as a drying module and use the condensation heat for drying operation, and use the first heat exchange module 31 as a condensation drainage module to perform condensation and drainage operation on the heat pump dryer 30; and when the system is in heating mode, after the second valve 52 is opened, the high-pressure and high-temperature refrigerant can enter the second heat exchange module 32 and / or the indoor unit 20, and then be converted into a low-temperature and low-pressure refrigerant to enter the first condenser 40, so as to increase the superheat of the refrigerant.

[0066] In the embodiment of the present application, the heat exchange system is equipped with a heat pump dryer 30 and a first condenser 40, and the heat pump dryer 30 is provided with a first heat exchange module 31 and a second heat exchange module 32 that can interchangeably provide drying function and condensation drainage function, so that the heat exchange system can meet the daily cooling and heating functions while utilizing the condensation heat of the air-conditioning system through the heat pump dryer 30 to perform drying operations and utilizing the evaporative cooling capacity to perform condensation drainage operations, thereby achieving efficient use of energy; and the first condenser 40 can perform auxiliary heat exchange when there is no need to perform drying operations; therefore, the heat exchange system provided in the present application can not only meet the normal cooling or heating needs of the heat exchange system, but also improve energy utilization, can effectively alleviate the heat island effect caused by direct discharge of condensation heat, and improve user comfort.

[0067] Optionally, the fourth valve 54 is a four-way valve. In the embodiment of the present application, the output end and the input end of the compressor 10 are connected to the first pipeline 11 and the second pipeline 12 through the four-way valve, the first condenser 40 and the first heat exchange module 31 are connected to the first pipeline 11 in parallel, and the indoor unit 20 and the second heat exchange module 32 are connected to the second pipeline 12 in parallel, so that the heat exchange system can utilize the condensation heat of the heat pump dryer 30 while meeting the daily cooling and heating functions, so as to realize the efficient reuse of energy and effectively alleviate the heat island effect.

[0068] In the embodiment of the present application, during the refrigeration operation, the condensation heat released by the first heat exchange module 31 is used to heat the objects to be dried in the heat pump dryer 30. The water on the objects becomes water vapor and carries the condensation heat. If it is not handled, it is easy to cause poor user comfort and even form a heat island effect. At this time, the second heat exchange module 32 can be used to divert part of the refrigerant into the second heat exchange module 32 after throttling, and the water vapor carrying the condensation heat is re-condensed into water and discharged. The refrigerant inherits this part of the condensation heat and flows back to the compressor 10. Because the refrigerant flowing back to the compressor 10 needs to have a certain degree of superheat, and the condensation heat inherited by the refrigerant from the dryer just increases its superheat. That is, it ensures that the condensation heat is not released, and ensures that the compressor 10 operates efficiently and sustainably.

[0069] Optionally, in one embodiment, the first heat exchange module 31 and the second heat exchange module 32 are both equipped with a water receiving pan 33. Because the first heat exchange module 31 and the second heat exchange module 32 can be interchangeably used as a drying module and a condensation drainage module, that is, they can interchangeably provide a drying function and a condensation drainage function, the first heat exchange module 31 and the second heat exchange module 32 are both equipped with a water receiving pan 33, so that any one of the first heat exchange module 31 and the second heat exchange module 32 provides a condensation drainage function, and the condensed water can be discharged in time, so that the environment inside the heat pump dryer 30 remains dry.

[0070] In the embodiment of the present application, the heat pump dryer 30 further includes a drying chamber 34 disposed on the top of the first heat exchange module 31 and the second heat exchange module 32, for loading dried objects such as clothes, etc. Optionally, the first heat exchange module 31 and the second heat exchange module 32 in the heat pump dryer 30 are spaced apart and disposed on both sides of the heat pump dryer 30, so as to form a circulating heat field in the heat pump dryer 30, and the hot air first blows upward along one side wall of the drying chamber 34 as a drying module near the first heat exchange module 31 and the second heat exchange module 32, then blows along the drying chamber cavity wall to the other side wall, then settles along the other side wall, and finally returns to the starting point along the bottom cavity, completing the circulation of hot air in the drying chamber and the absorption of water vapor.

[0071] Optionally, in one embodiment, the first condenser 40 is a water-cooled condenser, and the heat exchange system further includes a water tank 41 for providing cooling water to the first condenser 40. By providing cooling water to the first condenser 40, the water in the water tank 41 can be heated by the first condenser 40 during the refrigeration operation of the system, thereby providing domestic hot water. Optionally, a water valve 42 is provided on the water tank 41 to facilitate the taking and placing of domestic hot water.

[0072] In this embodiment, when the system is in cooling mode, after the second valve 52 is opened, the high-pressure and high-temperature refrigerant can be converted into a low-temperature and low-pressure refrigerant after entering the first condenser 40, and enter the second heat exchange module 32 and / or the indoor unit 20, thereby realizing that the condensed water is heated by the condensation heat through the first condenser 40 to provide hot water; and when the system is in heating mode, after the second valve 52 is opened, the high-pressure and high-temperature refrigerant can be converted into a low-temperature and low-pressure refrigerant after entering the second heat exchange module 32 and / or the indoor unit 20, and enter the first condenser 40, thereby realizing that the condensed water is further heated by the condensation heat through the first condenser 40 to provide hot water.

[0073] In this embodiment, the first condenser 40 can perform auxiliary heat exchange and provide hot water when there is no need for drying operation, which can not only meet the normal cooling or heating needs of the heat exchange system, further improve energy utilization, but also effectively alleviate the heat island effect caused by direct discharge of condensation heat, thereby improving user comfort.

[0074] In the embodiment of the present application, the first heat exchange module 31 and the first condenser 40 are connected in parallel to the indoor unit 20 and the second heat exchange module 32 through the main line 13 .

[0075] Optionally, in one embodiment, the indoor unit 20 includes a first throttling device 21 and an indoor heat exchanger 22 arranged in series, and the first throttling device 21 is arranged between the indoor heat exchanger 22 and the main line 13, and the throttling intensity of the first throttling device 21 can be adjusted according to the refrigerant temperature in the main line 13, so as to meet the target heat exchange requirement. Optionally, the indoor heat exchanger 22 can be specifically an indoor evaporator.

[0076] Optionally, in one embodiment, the second heat exchange module 32 is connected to the main line 13 via the second throttling device 23, and when a drying operation is required, the throttling intensity of the second throttling device 23 can be adjusted according to the temperature of the refrigerant in the main line 13 to meet the target drying requirements, and when a drying operation is not required, the branch where the second heat exchange module 32 is located can be closed so that the refrigerant no longer flows through the second heat exchange module 32. Optionally, the second heat exchange module 32 can be specifically a tubular heat exchanger, and the first heat exchange module 31 can be specifically a tubular heat exchanger.

[0077] Optionally, in a specific embodiment, the first throttling device 21 and the second throttling device 23 may respectively include expansion valves, which can accurately control the flow rate and pressure of the refrigerant, thereby adjusting the refrigeration effect of the system.

[0078] Optionally, in a specific embodiment, a temperature sensor 14 is also provided on the main line 13 for obtaining the refrigerant temperature so that the third valve 53 can adjust the opening, and the first throttling device 21 and the second throttling device 23 can adjust the throttling intensity to meet indoor cooling needs.

[0079] Optionally, in one embodiment, the heat exchange system provided in the embodiment of the present application also includes a second condenser 60 and a third valve 53. The first heat exchange module 31 and the first condenser 40 are connected in parallel and connected to the indoor unit 20 and the second heat exchange module 32 through the main line 13. The second condenser 60 and the third valve 53 are arranged in parallel on the main line 13.

[0080] In this embodiment, by setting the second condenser 60 and the third valve 53 in parallel on the main line 13 between the first heat exchange module 31 and the first condenser 40 and the indoor unit 20 and the second heat exchange module 32, the second condenser 60 can be used for auxiliary heat exchange when the heat exchange effect of the first condenser 40 and the heat pump dryer 30 cannot meet the refrigerant temperature requirement of the indoor unit 20.

[0081] In this embodiment, during the operation of the system, if the hot water in the first condenser 40 is not used for a long time and the heat pump dryer 30 is not used, the heat exchange effect of the first condenser 40 and the heat pump dryer 30 deteriorates, and the second condenser 60 can be connected to assist in heat exchange to meet the indoor cooling demand.

[0082] The auxiliary heat exchanger may be an air-cooled condenser in the prior art.

[0083] Optionally, the heat exchange system provided in the embodiment of the present application further includes a pressure switch disposed at the exhaust port of the compressor 10, which can effectively prevent the system pressure from exceeding a standard.

[0084] Optionally, the heat exchange system provided in the embodiment of the present application further includes a humidity sensor arranged on the indoor side for detecting the indoor humidity, thereby controlling the operating frequency of the compressor 10 and the like.

[0085] See also Figure 2 , shows a refrigerant operation diagram when the heat exchange system provided in the embodiment of the present application performs cooling and drying modes at the same time. Figure 2As shown, when the cooling and drying modes are operated at the same time, the refrigerant flows out through the output end of the compressor 10 and the four-way valve. At this time, the first valve 51 and the third valve 53 are opened and the second valve 52 is closed. The refrigerant does not pass through the water tank 41, but directly flows into the first heat exchange module 31 in the heat pump dryer 30 to release heat for drying. At this time, the warm air in the drying cabin blows counterclockwise to blow the drying cabin 34, thereby forming a circulating heat field. The direction of the heat field in the drying cabin 34 is shown by the arrow; then the refrigerant flows through the third valve 53 and the temperature sensor 1 4 without passing through the second condenser 60, and the temperature sensor 14 detects the pipe temperature at this time as the refrigerant temperature, so as to control the throttling strength of the first throttling device 21 and the second throttling device 23; then, according to the needs, a part of the refrigerant is throttled by the second throttling device 23 and flows into the second heat exchange module 32 in the heat pump dryer 30 to absorb heat for condensation and drainage, and the other part of the refrigerant is throttled by the first throttling device 21 and flows into the indoor unit 20 to absorb heat for refrigeration, and then the refrigerants merge and flow to the four-way valve and return to the compressor 10.

[0086] See also Figure 3 , shows a refrigerant operation diagram when the heat exchange system provided in the embodiment of the present application only performs the cooling mode. Figure 3 As shown, when only the cooling mode is operated, the refrigerant flows out through the output end of the compressor 10 and the four-way valve. At this time, the second valve 52 and the third valve 53 are opened and the first valve 51 and the second throttling device 23 are closed. The refrigerant does not pass through the heat pump dryer 30, but flows through the water tank 41 to release heat to form hot water, and the hot water can be released for use through the water valve 42; then the refrigerant flows through the third valve 53 and the temperature sensor 14 instead of flowing through the second condenser 60, and the temperature sensor 14 detects the pipe temperature at this time as the refrigerant temperature, thereby controlling the throttling intensity of the first throttling device 21; then the refrigerant is throttled by the first throttling device 21 and flows into the indoor unit 20 to absorb heat for cooling, and then flows to the four-way valve and returns to the compressor 10.

[0087] See also Figure 4 , shows a refrigerant operation diagram when the heat exchange system provided by the embodiment of the present application performs heating and drying modes at the same time. Figure 4As shown, when the heating and drying modes are operated simultaneously, the refrigerant flows out through the output end of the compressor 10 and the four-way valve. At this time, the first valve 51 is opened and the second valve 52 and the third valve 53 are closed, and the refrigerant enters the second heat exchange module 32 in the indoor unit 20 and the heat pump dryer 30 for heating operation. At this time, the warm air in the drying cabin is blown from the second heat exchange module 32 to the drying cabin 34 to achieve drying operation, thereby forming a circulating heat field, and the direction of the heat field in the drying cabin 34 is shown by the arrow; then the refrigerant passes through the first throttling device 21 and the second throttling device 23 and then merges and flows through the temperature sensor 14, and then flows through the third valve 53 without flowing through the second condenser 60, and then flows into the first heat exchange module 31 in the heat pump dryer 30 for condensation and drainage operation, wherein the condensed water is discharged from the water receiving tray 33, and then the refrigerant no longer flows through the water tank 41 but directly flows to the four-way valve to return to the compressor 10.

[0088] See also Figure 5 , shows a refrigerant operation diagram when the heat exchange system provided in the embodiment of the present application only performs the heating mode. Figure 5 As shown, when only the heating mode is running, the refrigerant flows out through the output end of the compressor 10 and the four-way valve. At this time, the second valve 52 and the first valve 51 and the third valve 53 are opened and the second throttling device 23 is closed, and the refrigerant enters the indoor unit 20 for heating operation. Then the refrigerant passes through the first throttling device 21 and flows through the temperature sensor 14, and then flows through the third valve 53 without flowing through the second condenser 60, and then directly flows through the water tank 413 to absorb heat to increase the superheat of the refrigerant, and then the refrigerant flows directly to the four-way valve 2 to return to the compressor 10.

[0089] See also Figure 6 , shows a refrigerant operation diagram when the heat exchange system provided in the embodiment of the present application only performs the drying mode. Figure 6 As shown, when only the drying mode is operated, the refrigerant flows out through the output end of the compressor 10 and the four-way valve. At this time, the first valve 51 and the third valve 53 are opened, and the second valve 52 and the first throttling device 21 are closed. The refrigerant does not pass through the water tank 41, but directly flows into the first heat exchange module 31 in the heat pump dryer 30 to release heat for drying operation. At this time, the warm air in the drying chamber blows counterclockwise to the drying chamber 34, thereby forming a circulating heat field. The direction of the heat field in the drying chamber 34 is shown by the arrow; then the refrigerant flows through the third valve 53 and the temperature sensor 14 but does not flow through the second condenser 60. The temperature sensor 14 detects the pipe temperature at this time as the refrigerant temperature, thereby controlling the throttling intensity of the second throttling device 23; then the refrigerant is throttled by the second throttling device 23 and flows into the second heat exchange module 32 in the heat pump dryer 30 to absorb heat for condensation and drainage, and then the refrigerant flows to the four-way valve and returns to the compressor 10.

[0090] See also Figure 7, shows another refrigerant operation diagram when the heat exchange system provided in the embodiment of the present application only performs the drying mode. Figure 7 As shown, when only the drying mode is operated, the refrigerant flows out through the output end of the compressor 10 and the four-way valve. At this time, the first valve 51 is opened and the second valve 52, the third valve 53, and the first throttling device 21 are closed, and the refrigerant directly enters the second heat exchange module 32 in the heat pump dryer 30 for heating operation. At this time, the warm air in the drying chamber is blown from the second heat exchange module 32 to the drying chamber 34 to realize the drying operation, thereby forming a circulating heat field. The direction of the heat field in the drying chamber 34 is shown by the arrow; then the refrigerant passes through the second throttling device 23 and then merges and flows through the temperature sensor 14, then flows through the second condenser 60, and then flows into the first heat exchange module 31 in the heat pump dryer 30 for condensation and drainage operation, wherein the condensed water is discharged from the water receiving tray 33, and then the refrigerant no longer flows through the water tank 41 but directly flows to the four-way valve to return to the compressor 10.

[0091] See also Figure 8 , shows a flow chart of a control method for the above-mentioned heat exchange system provided in an embodiment of the present application, and the control method includes steps 801 to 802.

[0092] The control method provided in the embodiment of the present application can be specifically applied to a controller in an indoor unit, which is communicatively connected with a compressor, an indoor unit, a heat pump dryer, a first condenser, a first valve and a geothermal valve.

[0093] Step 801: Obtain the working mode of the heat exchange system.

[0094] In step 801, the working mode of the heat exchange system includes a temperature adjustment mode for the room and an operation mode of the heat pump dryer, the temperature adjustment mode includes a heating mode and a cooling mode, and the operation mode includes a drying mode and a non-drying mode; wherein the cooling mode refers to a mode in which the indoor unit heats the room, the cooling mode refers to a mode in which the indoor unit cools the room, the drying mode refers to a mode in which the heat pump dryer runs and dries the objects in the drying chamber, and the non-drying mode refers to a mode in which the heat pump dryer does not run and does not dry the objects in the drying chamber.

[0095] Step 802: According to the working mode, control the operation of the indoor unit and the second heat exchange module, and control the opening and closing of the first valve and the second valve.

[0096] In step 802, according to the above working mode, the operation of the indoor unit and the second heat exchange module are controlled respectively, as well as the opening and closing of the first valve and the second valve are controlled, so as to control the refrigerant to flow through the heat pump dryer when the working mode requires the heat pump dryer to participate in the operation, thereby realizing the use of condensation heat to dry objects and the use of condensation drainage operation in the heat pump dryer, and realizing the temperature regulation effect of cooling or heating the room by using the indoor unit.

[0097] The control method provided in the embodiment of the present application, because the heat exchange system is equipped with a heat pump dryer and a first condenser, and the heat pump dryer is provided with a first heat exchange module and a second heat exchange module that can interchangeably provide a drying function and a condensation drainage function, controls the operation of the indoor unit and the second heat exchange module, controls the opening and closing of the first valve at the heat pump dryer, and controls the opening and closing of the second valve at the first condenser according to the actual working mode of the system, which can not only meet the daily cooling and heating functions, but also can use the condensation heat of the air-conditioning system to perform drying operations through the heat pump dryer, and use the evaporative cooling to perform condensation drainage operations, thereby realizing efficient use of energy; and the first condenser can perform auxiliary heat exchange when there is no need to perform drying operations, which can not only meet the normal cooling or heating needs of the heat exchange system, but also improve energy utilization, can effectively alleviate the heat island effect caused by direct discharge of condensation heat, and improve user comfort.

[0098] Optionally, in one implementation, according to the working mode, controlling the operation of the indoor unit and the second heat exchange module, and controlling the opening and closing of the first valve and the second valve, includes steps 821 to 822:

[0099] Step 821: When the working mode includes a drying mode, control the first valve to be opened, the second valve to be closed, and control the second heat exchange module to be started.

[0100] In step 821, when the working mode includes a drying mode, it indicates that the heat pump dryer is required to perform a drying operation, and thus the first valve is controlled to be opened and the second valve is controlled to be closed, and at the same time, the second heat exchange module is controlled to start, specifically, the second throttling device is controlled to be opened, so that the refrigerant can flow through the first heat exchange module and the second heat exchange module, but not through the first condenser, thereby making full use of the system's condensation heat for drying operations, and utilizing the evaporative cooling capacity for condensation drainage operations, thereby achieving efficient use of energy.

[0101] Step 822: When the working mode does not include a drying mode, control the first valve to be closed, the second valve to be opened, and control the second heat exchange module to be closed.

[0102] In step 822, when the working mode does not include the drying mode, it means that the heat pump dryer is not required to perform the drying operation, so the first valve is controlled to be closed and the second valve is controlled to be opened, and the second heat exchange module is controlled to be closed at the same time, specifically, the second throttling device is controlled to be opened, so that the refrigerant can flow through the first condenser, but not through the first heat exchange module and the second heat exchange module, so that the condensation heat is released by the first condenser to meet the cooling and heating requirements.

[0103] Optionally, in one implementation, according to the working mode, controlling the operation of the indoor unit and the second heat exchange module, and controlling the opening and closing of the first valve and the second valve, further includes steps 823 to 824:

[0104] Step 823: When the working mode includes a cooling mode, control the output end of the compressor to be connected to the first heat exchange module and the first condenser, and control the input end of the compressor to be connected to the indoor unit and the second heat exchange module.

[0105] In step 823, when the above-mentioned working mode includes a cooling mode, it indicates that the indoor unit needs to be used to perform cooling operations on the indoor room, and thus the output end of the compressor is controlled to be connected to the first heat exchange module and the first condenser, and the input end of the compressor is controlled to be connected to the indoor unit and the second heat exchange module, so as to switch the system to the cooling mode state, so that the high-temperature and high-pressure refrigerant can flow into the first heat exchange module and / or the first condenser to release heat, and then flow back to the compressor after being condensed in the second heat exchange module and / or the indoor unit.

[0106] Step 824: When the working mode includes a heating mode, control the input end of the compressor to be connected to the first heat exchange module and the first condenser, and control the output end of the compressor to be connected to the indoor unit and the second heat exchange module.

[0107] In step 824, when the above-mentioned working mode includes a heating mode, it indicates that the indoor unit needs to be used to heat the room, and thus the input end of the compressor is controlled to be connected to the first heat exchange module and the first condenser, and the output end of the compressor is controlled to be connected to the indoor unit and the second heat exchange module, thereby switching the system to the heating mode state, so that the high-temperature and high-pressure refrigerant can flow into the second heat exchange module and / or the indoor unit to release heat, and then flow back to the compressor after being condensed by the first heat exchange module and / or the first condenser.

[0108] Optionally, in one embodiment, the heat exchange system further includes a second condenser and a third valve; the first heat exchange module and the first condenser are connected in parallel to the indoor unit and the second heat exchange module through a main pipe; the second condenser and the third valve are arranged in parallel on the main pipe; the control method further includes steps 725 to 826:

[0109] Step 825: When the working mode includes a heating mode, control the third valve to be closed.

[0110] In step 825, when the system's operating mode includes a heating mode, it indicates that the indoor unit needs to be used to heat the room. At this time, the third valve is controlled to be closed so that the high-temperature and high-pressure refrigerant first flows into the second heat exchange module and / or the indoor unit to release condensation heat for cooling operations, first flows through the second condenser for condensation, and then enters the first heat exchange module and / or the first condenser for further condensation, thereby realizing condensation and drainage using the first heat exchange module.

[0111] Step 826: When the working mode includes the cooling mode, control the third valve to open.

[0112] In step 826, when the system's operating mode includes a cooling mode, it indicates that the indoor unit needs to be used to perform cooling operations on the indoor space. At this time, the third valve is controlled to be opened, and the high-temperature and high-pressure refrigerant first flows into the first heat exchange module and / or the first condenser to release the condensation heat. Then, the refrigerant does not flow through the second condenser but directly enters the second heat exchange module and / or the indoor unit to perform cooling operations.

[0113] Optionally, in another embodiment, a temperature sensor 14 is provided on the main pipe, through which the refrigerant temperature in the main pipe can be obtained, and when the refrigerant temperature is greater than a preset temperature value, the third valve is controlled to close, so that the second condenser is connected to the flow path and starts to be used; if the refrigerant temperature is less than or equal to the preset temperature value, the third valve is controlled to open, so that the second condenser is not connected to the flow path. The preset temperature value can be 35°C.

[0114] In an embodiment of the present application, the indoor unit includes a first throttling device and an indoor heat exchanger arranged in series, and the second heat exchange module is connected to the main line via the second throttling device. The above-mentioned working mode specifically includes the following five situations: drying + cooling mode, cooling mode, drying + heating mode, heating mode, and drying mode.

[0115] Optionally, when the above-mentioned working mode is drying + cooling mode, the output end of the compressor is controlled to be connected to the first heat exchange module and the first condenser, and the input end of the compressor is controlled to be connected to the indoor unit and the second heat exchange module, so as to switch the system to the cooling mode, control the first valve and the third valve to be opened, and the second valve to be opened and disconnected, and at the same time control the first throttling device and the second throttling device to be opened, so that the high-temperature and high-pressure refrigerant can flow into the first heat exchange module to perform the drying operation but does not flow through the first condenser to release heat, and then enters the second heat exchange module after throttling by the second throttling device to perform the condensation and drainage operation and enters the indoor unit after throttling by the first throttling device to perform the cooling operation, and then flows back to the compressor after condensation.

[0116] Optionally, when the above-mentioned working mode is the cooling mode, the output end of the compressor is controlled to be connected to the first heat exchange module and the first condenser, and the input end of the compressor is controlled to be connected to the indoor unit and the second heat exchange module, so as to switch the system to the cooling mode state, control the second valve and the third valve to open, and the first valve to close, and control the first throttling device to open and the second throttling device to close, so that the high-temperature and high-pressure refrigerant can flow through the first condenser to release heat but does not flow into the first heat exchange module, and then enters the indoor unit for cooling operation after throttling by the first throttling device, and flows back to the compressor after condensation.

[0117] Optionally, when the above-mentioned working mode is drying + heating mode, the input end of the compressor is controlled to be connected to the first heat exchange module and the first condenser, and the output end of the compressor is controlled to be connected to the indoor unit and the second heat exchange module, so as to switch the system to the heating mode state, control the first valve to open, the second valve and the third valve to close, and control the first throttling device and the second throttling device to open, so that the high-temperature and high-pressure refrigerant can flow into the second heat exchange module for drying operation, and flow into the indoor unit to release heat, and then flow through the second condenser for condensation, and then enter the first heat exchange module for condensation and drainage operation, and then flow back to the compressor after condensation.

[0118] Optionally, when the above-mentioned working mode is the heating mode, the input end of the compressor is controlled to be connected to the first heat exchange module and the first condenser, and the output end of the compressor is controlled to be connected to the indoor unit and the second heat exchange module, so as to switch the system to the heating mode state, control the second valve to open, the first valve and the third valve to close, control the first throttling device to open and the second throttling device to close, so that the high-temperature and high-pressure refrigerant flows into the indoor unit to release heat, then flows through the second condenser for condensation, and then enters the first condenser for condensation and heat absorption, so as to increase the superheat of the refrigerant, and then flows back to the compressor.

[0119] Optionally, when the above-mentioned working mode is the drying mode, the input end of the compressor is controlled to be connected to the first heat exchange module and the first condenser, and the output end of the compressor is controlled to be connected to the indoor unit and the second heat exchange module, the first valve is controlled to be opened, the second valve and the third valve are controlled to be closed, the second throttling device is controlled to be opened and the first throttling device is controlled to be closed, so that the high-temperature and high-pressure refrigerant flows into the second heat exchange module for drying operation, and then flows through the second condenser for condensation after throttling by the second throttling device, and then enters the first heat exchange module for condensation and drainage operation, and then flows back to the compressor.

[0120] Optionally, when the above-mentioned working mode is the drying mode, the output end of the compressor is controlled to be connected to the first heat exchange module and the first condenser, and the input end of the compressor is controlled to be connected to the indoor unit and the second heat exchange module, the second valve and the third valve are controlled to be opened and the first valve is controlled to be closed, and at the same time, the first throttling device is controlled to be closed and the second throttling device is controlled to be opened, so that the high-temperature and high-pressure refrigerant can flow into the first heat exchange module for drying operation but does not flow through the first condenser to release heat, and then enters the second heat exchange module for condensation and drainage operation after throttling by the second throttling device, and flows back to the compressor after condensation.

[0121] Fig. 9 is a schematic diagram of a control device for a heat exchange system provided by an embodiment of the present invention, the device comprising:

[0122] An acquisition module 91 is used to acquire the working mode of the heat exchange system;

[0123] The control module 92 is used to control the opening and closing of the indoor unit and the second heat exchange module, and control the opening and closing of the first valve and the second valve according to the working mode.

[0124] Optionally, the control module 91 includes:

[0125] a first control unit, configured to control the first valve to be opened, the second valve to be closed, and the second heat exchange module to be started when the working mode includes a drying mode;

[0126] The second control unit is used for controlling the first valve to be closed, the second valve to be opened, and the second heat exchange module to be closed when the working mode does not include a drying mode.

[0127] Optionally, the control module 91 further includes:

[0128] a third control unit, configured to control the output end of the compressor to be connected to the first heat exchange module and the first condenser, and control the input end of the compressor to be connected to the indoor unit and the second heat exchange module when the working mode includes a cooling mode;

[0129] A fourth control unit is used to control the input end of the compressor to be connected to the first heat exchange module and the first condenser, and to control the output end of the compressor to be connected to the indoor unit and the second heat exchange module when the working mode includes a heating mode.

[0130] Optionally, when the heat exchange system further includes a second condenser and a third valve, the first heat exchange module and the first condenser are connected in parallel to the indoor unit and the second heat exchange module through a main pipe, and the second condenser and the third valve are arranged in parallel on the main pipe, the control module 91 further includes:

[0131] a fifth control unit, configured to control the third valve to close when the working mode includes a heating mode;

[0132] The sixth control unit is used to control the third valve to open when the working mode includes a cooling mode.

[0133] An embodiment of the present invention further provides a heat exchange terminal, comprising the control device as described above.

[0134] As for the above-mentioned device and heat exchange terminal embodiments, since they are basically similar to the control method embodiments of the heat exchange system, the relevant parts may refer to the partial description of the method embodiments.

[0135] The control device and heat exchange terminal of the heat exchange system provided in the embodiment of the present invention, because the heat exchange system is equipped with a heat pump dryer and a first condenser, and the heat pump dryer is provided with a first heat exchange module and a second heat exchange module that can interchangeably provide a drying function and a condensation drainage function, and according to the actual working mode of the system, the operation of the indoor unit and the second heat exchange module is controlled, as well as the opening and closing of the first valve at the heat pump dryer and the opening and closing of the second valve at the first condenser are controlled, which can not only meet the daily cooling and heating functions, but also can use the condensation heat of the air-conditioning system to perform drying operations through the heat pump dryer, and use the evaporative cooling capacity to perform condensation drainage operations, thereby realizing efficient utilization of energy; and the first condenser can perform auxiliary heat exchange when there is no need to perform drying operations, which can not only meet the normal cooling or heating needs of the heat exchange system, but also improve energy utilization, can effectively alleviate the heat island effect caused by direct discharge of condensation heat, and improve user comfort.

[0136] The embodiment of the present invention further provides an electronic device, such as Fig.10 As shown, it includes a processor 1001 , a communication interface 1002 , a memory 1003 and a communication bus 1004 , wherein the processor 1001 , the communication interface 1002 , and the memory 1003 communicate with each other via the communication bus 1004 .

[0137] The memory 1003 is used to store computer programs.

[0138] When the processor 1001 is used to execute the program stored in the memory 1003, the following steps are implemented:

[0139] Obtain the working mode of the heat exchange system;

[0140] According to the working mode, the operation of the indoor unit and the second heat exchange module is controlled, and the opening and closing of the first valve and the second valve are controlled.

[0141] Among them, the processor 1001 can also implement other steps in the control method of the above-mentioned heat exchange system, which will not be repeated here.

[0142] The communication bus mentioned in the above electronic device can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus or a Controller Area Network (CAN) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0143] The communication interface is used for communication between the above electronic device and other devices.

[0144] The memory may include a random access memory (RAM) or a non-volatile memory, such as at least one disk memory. Alternatively, the memory may also be at least one storage device located away from the aforementioned processor.

[0145] The above-mentioned processor can be a general-purpose processor, including a central processing unit (CPU), a network processor (NP), etc.; it can also be a digital signal processor (DSP), an application specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components.

[0146] In another embodiment of the present invention, a computer-readable storage medium is provided, in which instructions are stored. When the computer-readable storage medium is run on a computer, the computer executes the control method of the heat exchange system described in the above embodiment.

[0147] In another embodiment provided by the present invention, a computer program product including instructions is also provided, and when the computer is run on the computer, the computer executes the control method of the heat exchange system described in the above embodiment.

[0148] In another embodiment provided by the present invention, a heat exchange terminal is also provided. The heat exchange terminal includes the above-mentioned electronic device.

[0149] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present invention is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.). The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated. The available medium can be a magnetic medium (e.g., a floppy disk, a hard disk, a tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid-state hard disk Solid State Disk (SSD)), etc.

[0150] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0151] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. For the embodiments of the device, electronic device, computer-readable storage medium and computer program products containing instructions, since they are basically similar to the method embodiments, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiments.

[0152] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A heat exchange system, characterized in that: The heat exchange system includes a compressor, an indoor unit, a heat pump dryer and a first condenser; The heat pump dryer comprises a first heat exchange module and a second heat exchange module arranged at intervals, the compressor is connected to the first heat exchange module and the indoor unit in sequence through a fourth valve to form a loop, the first condenser is arranged in parallel with the first heat exchange module, and the indoor unit is arranged in parallel with the second heat exchange module; One of the first heat exchange module and the second heat exchange module is used for drying operation, and the other of the first heat exchange module and the second heat exchange module is used for condensation and drainage operation; A first valve and a second valve are respectively provided on the connecting pipelines between the compressor, the first heat exchange module and the first condenser.

2. The heat exchange system according to claim 1, characterized in that: The first heat exchange module and the second heat exchange module are both equipped with a water receiving tray.

3. The heat exchange system according to claim 1, characterized in that: The heat exchange system also includes a second condenser and a third valve; The first heat exchange module and the first condenser are connected in parallel to the indoor unit and the second heat exchange module through a main pipe; the second condenser and the third valve are arranged in parallel on the main pipe.

4. The heat exchange system according to claim 3, characterized in that: The indoor unit includes a first throttling device and an indoor heat exchanger which are arranged in series, and the second heat exchange module is connected to the main pipeline via the second throttling device.

5. The heat exchange system according to claim 4, characterized in that: The first throttling device and the second throttling device each include an expansion valve.

6. The heat exchange system according to claim 4, characterized in that: The main pipe is also provided with a temperature sensor for obtaining the refrigerant temperature and for adjusting the opening of the third valve, and for adjusting the throttling intensity of the first throttling device and the second throttling device.

7. The heat exchange system according to claim 1, characterized in that: The first condenser is a water-cooled condenser, and the heat exchange system further includes a water tank for providing cooling water to the first condenser.

8. The heat exchange system according to claim 1, characterized in that: The heat pump dryer also includes a drying cabin arranged on the top of the first heat exchange module and the second heat exchange module.

9. A method for controlling a heat exchange system according to any one of claims 1 to 8, characterized in that: include: Obtain the working mode of the heat exchange system; According to the working mode, the operation of the indoor unit and the second heat exchange module is controlled, and the opening and closing of the first valve and the second valve are controlled.

10. The control method according to claim 9, characterized in that: According to the working mode, controlling the operation of the indoor unit and the second heat exchange module, and controlling the opening and closing of the first valve and the second valve, includes: When the working mode includes a drying mode, controlling the first valve to be opened, the second valve to be closed, and controlling the second heat exchange module to be started; When the working mode does not include a drying mode, the first valve is controlled to be closed, the second valve is controlled to be opened, and the second heat exchange module is controlled to be closed.

11. The control method according to claim 9, characterized in that: According to the working mode, controlling the operation of the indoor unit and the second heat exchange module, and controlling the opening and closing of the first valve and the second valve, further comprising: When the working mode includes a cooling mode, controlling the output end of the compressor to be connected to the first heat exchange module and the first condenser, and controlling the input end of the compressor to be connected to the indoor unit and the second heat exchange module; When the working mode includes a heating mode, the input end of the compressor is controlled to be connected to the first heat exchange module and the first condenser, and the output end of the compressor is controlled to be connected to the indoor unit and the second heat exchange module.

12. The control method according to claim 9, characterized in that: In the case where the heat exchange system further includes a second condenser and a third valve, the first heat exchange module and the first condenser are connected in parallel to the indoor unit and the second heat exchange module through a main pipe, and the second condenser and the third valve are arranged in parallel on the main pipe, the control method further includes: When the working mode includes a heating mode, controlling the third valve to be closed; When the working mode includes the cooling mode, the third valve is controlled to be opened.

13. A control device for a heat exchange system according to any one of claims 1 to 9, characterized in that: include: An acquisition module, used for acquiring the working mode of the heat exchange system; A control module is used to control the opening and closing of the indoor unit and the second heat exchange module, and control the opening and closing of the first valve and the second valve according to the working mode.

14. An electronic device, characterized in that: include: A processor, a communication interface, a memory and a communication bus; wherein the processor, the communication interface and the memory communicate with each other via the communication bus; Memory, used to store computer programs; The processor is used to implement the steps in the control method of the heat exchange system as described in any one of claims 9 to 12 when executing the program stored in the memory.

15. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the program is executed by a processor, the steps of the control method of the heat exchange system according to any one of claims 9 to 12 are implemented.

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