Multi-heat-pump system and control method thereof

Abstract

The embodiment of the invention provides a multi-heat-pump system and a control method thereof. The multi-heat-pump system comprises a first heat pump system, a second heat pump system, a shell, an inner air valve, a side air valve and an upper air valve. The inner air valve, the first heat pump system and the second heat pump system are arranged on the inner side of the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; the side air valve is arranged on the side face of the first heat pump system and the side face of the second heat pump system, and the side air valve is connected with the first heat pump system and the second heat pump system. The upper air valve is arranged above the first heat pump system, and the upper air valve is connected with the first heat pump system; the inner air valve, the side air valve and the upper air valve are used for being opened or closed in different operation modes so that the first heat pump system and the second heat pump system can conduct heat exchange. According to the embodiment of the invention, the adaptive capacity of the heat pump system can be improved, and engineering requirements are met.

Description

Technical Field

[0001] The present invention relates to the technical field of thermal energy processing engineering, and in particular to a multi-heat pump system, a control method for the multi-heat pump system, an electronic device and a storage medium. Background Art

[0002] At present, the application scope of heat pump technology is becoming more and more extensive. However, the traditional heat pump has a single function and mode, while the engineering application scenarios are various, which leads to the heat pump being unable to meet the complex and changeable engineering needs and having a small scope of adaptability. Summary of the invention

[0003] In view of the above problems, embodiments of the present invention are proposed to provide a multi-heat pump system, a control method for a multi-heat pump system, an electronic device and a storage medium that overcome the above problems or at least partially solve the above problems.

[0004] In order to solve the above problems, in a first aspect of the present invention, an embodiment of the present invention discloses a multi-heat pump system, including: a first heat pump system, a second heat pump system, a housing, an inner air valve, a side air valve and an upper air valve;

[0005] The inner air valve, the first heat pump system and the second heat pump system are arranged inside the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve;

[0006] The side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system;

[0007] The upwind valve is disposed above the first heat pump system, and the upwind valve is connected to the first heat pump system;

[0008] The inner air valve, the side air valve and the upper air valve are used to be opened or closed in different operation modes so as to enable the first heat pump system and the second heat pump system to perform heat exchange.

[0009] Optionally, the first heat pump system includes: a first water-side heat exchanger, a first heat dissipation fan and first heat exchange fins; the second heat pump system includes: a second water-side heat exchanger, a second heat dissipation fan and second heat exchange fins.

[0010] Optionally, in the parallel operation mode, the inner air valve is in a closed state, and the upper air valve and the side air valve are in an open state; the heat exchange path of the first heat pump system is entering from the first heat exchange fin and outputting from the upper air valve, and the heat exchange path of the second heat pump system is entering from the side air valve and outputting from the second cooling fan.

[0011] Optionally, in the series operation mode, the water inlet end of the first water-side heat exchanger is connected to the water outlet end of the second water-side heat exchanger; the inner air valve is in a closed state, and the upper air valve and the side air valve are in an open state.

[0012] Optionally, it also includes: a first water coil internal unit and a domestic hot water tank,

[0013] The second water-side heat exchanger is connected to the first water coil internal unit, and the first water-side heat exchanger is connected to the domestic hot water tank.

[0014] Optionally, it also includes: an external air duct,

[0015] The air outlet of the upper air valve and the air inlet of the first heat exchange fin are connected to one side of the external air duct, and an external air valve is installed on the other side of the external air duct.

[0016] Optionally, it further includes: a second water coil internal unit, a third water coil internal unit and a water coil external unit,

[0017] One end of the second water coil internal unit is connected to the water outlet of the second water side heat exchanger, and the other end is connected to the water inlet of the first water side heat exchanger;

[0018] One end of the third water coil internal unit is connected to the water outlet of the first water side heat exchanger, the other end of the third water coil internal unit is connected to one end of the water coil external unit, and the other end of the water coil external unit is connected to the water inlet of the second water side heat exchanger.

[0019] In a second aspect of the present invention, an embodiment of the present invention discloses a control method for a multi-heat pump system, the multi-heat pump system comprising: a first heat pump system, a second heat pump system, a shell, an inner air valve, a side air valve and an upper air valve; the inner air valve, the first heat pump system and the second heat pump system are arranged on the inner side of the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; the side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system; the upper air valve is arranged above the first heat pump system, and the upper air valve is connected to the first heat pump system; the method comprises:

[0020] Receive operation mode setting instructions;

[0021] According to the operation mode corresponding to the operation mode setting instruction, the state of at least one of the inner air valve, the side air valve and the upper air valve is controlled to enable the first heat pump system and the second heat pump system to perform heat exchange.

[0022] Optionally, the first heat pump system includes: a first water-side heat exchanger, a first heat dissipation fan and first heat exchange fins; the second heat pump system includes: a second water-side heat exchanger, a second heat dissipation fan and second heat exchange fins.

[0023] Optionally, the operation mode setting instruction corresponds to a parallel operation mode; the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve comprises:

[0024] The inner air valve is controlled to be in a closed state, and the upper air valve and the side air valve are controlled to be in an open state.

[0025] Optionally, the operation mode setting instruction corresponds to a series operation mode, and the water inlet end of the first water-side heat exchanger is connected to the water outlet end of the second water-side heat exchanger.

[0026] Optionally, the multi-heat pump system further includes: a first water coil indoor unit and a domestic hot water tank, the second water side heat exchanger is connected to the first water coil indoor unit, and the first water side heat exchanger is connected to the domestic hot water tank; the operation mode setting instruction corresponds to a non-duct cold recovery operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes:

[0027] detecting the refrigeration water outlet temperature and the domestic hot water temperature of the second heat pump system;

[0028] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being lower than a preset hot water temperature threshold, controlling the upper air valve to be closed and the side air valve to be in a closed state, and the inner air valve to be in an open state;

[0029] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being not lower than a preset hot water temperature threshold, controlling the upper air valve and the side air valve to be in a closed state and the inner air valve to be in an open state;

[0030] In response to the refrigeration water outlet temperature being not higher than a preset refrigeration temperature threshold, the inner air valve is controlled to be in a closed state.

[0031] Optionally, the multi-heat pump system further includes: an external air duct, a first water coil internal unit and a domestic hot water tank, the second water-side heat exchanger is connected to the first water coil internal unit, and the first water-side heat exchanger is connected to the domestic hot water tank; the air outlet of the upper air valve and the air inlet of the first heat exchange fin are connected to one side of the external air duct, and an organic external air valve is installed on the other side of the external air duct; the operation mode setting instruction corresponds to the air duct cold recovery operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes:

[0032] detecting the refrigeration water outlet temperature and the domestic hot water temperature of the second heat pump system;

[0033] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being lower than a preset hot water temperature threshold, controlling the upper air valve to be in an open state and the side air valve to be in a closed state;

[0034] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being not lower than a preset hot water temperature threshold, controlling the upper air valve and the side air valve to be in a closed state, and the outer air valve and the inner air valve to be in an open state;

[0035] In response to the refrigeration water outlet temperature being not higher than a preset refrigeration temperature threshold, the external air valve and the side air valve are opened, and the internal air valve and the upper air valve are closed.

[0036] Optionally, the multi-heat pump system further includes: a second water coil indoor unit, a third water coil indoor unit and a water coil outdoor unit, one end of the second water coil indoor unit is connected to the water outlet of the second water side heat exchanger, and the other end is connected to the water inlet of the first water side heat exchanger; one end of the third water coil indoor unit is connected to the water outlet of the first water side heat exchanger, the other end of the third water coil indoor unit is connected to one end of the water coil outdoor unit, and the other end of the water coil outdoor unit is connected to the water inlet of the second water side heat exchanger; the operation mode setting instruction corresponds to the constant temperature dehumidification operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes:

[0037] Control the side air valve and the upper air valve to be in a closed state, and the inner air valve to be in an open state; or,

[0038] The inner air valve is controlled to be in a closed state, and the side air valve and the upper air valve are controlled to be in an open state.

[0039] In the third aspect of the present invention, an embodiment of the present invention discloses an electronic device, including a processor, a memory, and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the control method of the multi-heat pump system as described above are implemented.

[0040] In a fourth aspect of the present invention, an embodiment of the present invention discloses a computer-readable storage medium, on which a computer program is stored, and when the computer program is executed by a processor, the steps of the control method of the multi-heat pump system as described above are implemented.

[0041] The embodiments of the present invention include the following advantages:

[0042] The embodiment of the present invention forms a multi-heat pump system through a first heat pump system, a second heat pump system, a shell, an inner air valve, a side air valve and an upper air valve; the inner air valve, the first heat pump system and the second heat pump system are arranged on the inner side of the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; the side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system; the upper air valve is arranged above the first heat pump system, and the upper air valve is connected to the first heat pump system; the inner air valve, the side air valve and the upper air valve are used to open or close in different operating modes so that the first heat pump system and the second heat pump system can perform heat exchange; a variety of operating modes can be realized by correspondingly controlling the inner air valve, the side air valve and the upper air valve, and the mode switching can be completed by simple air valve switching, which can effectively expand the adaptability of the heat pump system, improve the adaptability of the heat pump system, and meet complex and changeable engineering needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a structural schematic diagram of a multi-heat pump system of the present invention;

[0044] Figure 2 is a flow chart of steps of an embodiment of a control method for a multi-heat pump system of the present invention;

[0045] Figure 3 This is a schematic diagram of the operation of a multi-heat pump system of the present invention. Figure 1 ;

[0046] Figure 4 This is a schematic diagram of the operation of a multi-heat pump system of the present invention. Figure 2 ;

[0047] Figure 5 This is a schematic diagram of the operation of a multi-heat pump system of the present invention. Figure 3 ;

[0048] Figure 6 This is a schematic diagram of the operation of a multi-heat pump system of the present invention. Figure 4 ;

[0049] Figure 7 is a structural block diagram of an electronic device provided by an embodiment of the present invention;

[0050] Figure 8 It is a structural block diagram of a storage medium provided by an embodiment of the present invention.

[0051] Explanation of reference numerals: 100 - first heat pump system, 200 - second heat pump system, 300 - housing, 400 - inner air valve, 500 - side air valve, 600 - upper air valve. DETAILED DESCRIPTION

[0052] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0053] Reference Figure 1 , showing a schematic structural diagram of a multi-heat pump system of the present invention; the multi-heat pump system comprises: a first heat pump system 100, a second heat pump system 200, a housing 300, an inner air valve 400, a side air valve 500 and an upper air valve 600;

[0054] The inner air valve 400, the first heat pump system 100 and the second heat pump system 200 are arranged inside the housing 300, and the first heat pump system 100 and the second heat pump system 200 are connected through the inner air valve 400;

[0055] The side wind valve 500 is disposed on the side of the first heat pump system 100 and the second heat pump system 200, and the side wind valve 500 is connected to the first heat pump system 100 and the second heat pump system 200;

[0056] The upwind valve 600 is disposed above the first heat pump system 100, and the upwind valve 600 is connected to the first heat pump system 100;

[0057] The inner air valve 400 , the side air valve 500 , and the upper air valve 600 are used to be opened or closed in different operation modes so that the first heat pump system 100 and the second heat pump system 200 can perform heat exchange.

[0058] In an embodiment of the present invention, a multi-heat pump system may include a first heat pump system 100, a second heat pump system 200, a housing 300, an inner air valve 400, a side air valve 500, and an upper air valve 600. The first heat pump system 100 and the second heat pump system 200 are installed in the same housing 300. The inner air valve 400 is also arranged between the first heat pump system 100 and the second heat pump system 200, and the inner air valve 400 is connected to the first heat pump system 100 and the second heat pump system 200 respectively, and the inner air valve 400, the first heat pump system 100, and the second heat pump system 200 are arranged on the inner side of the housing 300. The first heat pump system 100 and the second heat pump system 200 have the same structure, and each heat pump system may include a compressor, a vapor-liquid separator, an electronic expansion valve, a fan, a fin heat exchanger, a shell and tube heat exchanger, an air valve, a pipeline, etc. The compressor, the shell-and-tube heat exchanger, the electronic expansion valve, the four-way valve, and the pipelines of the first heat pump system 100 and the second heat pump system 200 are respectively placed on the left and right sides of the inner air valve 400 .

[0059] The side air valve 500 is disposed on the side of the first heat pump system 100 and the second heat pump system 200. The number of the side air valve 500 may be multiple, such as Figure 1 As shown, there are two side air valves 500. The side air valves 500 are connected to the first heat pump system 100 and the second heat pump system 200 respectively. The upper air valve 600 can be arranged above the first heat pump system 100, and the upper air valve 600 is connected to the first heat pump system 100, and heat is exchanged with the outside through the upper air valve 600.

[0060] The inner air valve 400, the side air valve 500 and the upper air valve 600 can all be independently controlled. In different operating modes, each of the inner air valve 400, the side air valve 500 and the upper air valve 600 can be independently controlled to be open or closed, so that the first heat pump system 100 and the second heat pump system 200 can exchange heat, thereby achieving corresponding cooling or heating needs.

[0061] In an optional embodiment of the present invention, the first heat pump system 100 includes: a first water-side heat exchanger, a first cooling fan and a first heat exchange fin; the second heat pump system 200 includes: a second water-side heat exchanger, a second cooling fan and a second heat exchange fin.

[0062] In the embodiment of the present invention, the first heat pump system 100 and the second heat pump system 200 have the same structure, and both include a water-side heat exchange system and a wind-side heat exchange system. That is, the first heat pump system 100 includes a first water-side heat exchanger, a first heat dissipation fan, and a first heat exchange fin. The second heat pump system 200 includes a second water-side heat exchanger, a second heat dissipation fan, and a second heat exchange fin. The first water-side heat exchanger has the same structure as the second water-side heat exchanger. The first heat exchange fin and the second heat exchange fin have the same structure. The first heat dissipation fan and the second heat dissipation fan have the same structure. Among them, the first and the second are only used to distinguish components located in different heat pump systems.

[0063] In an optional embodiment of the present invention, in the parallel operation mode, the inner air valve 400 is in a closed state, and the upper air valve 600 and the side air valve 500 are in an open state; the heat exchange path of the first heat pump system 100 enters from the first heat exchange fin and outputs from the upper air valve 600, and the heat exchange path of the second heat pump system 200 enters from the side air valve 500 and outputs from the second cooling fan.

[0064] The multi-heat pump system has a parallel operation mode, that is, the first heat pump system 100 and the second heat pump system 200 operate independently, and the first heat pump system 100 and the second heat pump system 200 independently perform cooling or heating to achieve corresponding temperature adjustment. In the parallel operation mode, the inner air valve 400 is in a closed state, and the upper air valve 600 and the side air valve 500 are in an open state; at this time, the wind of the first heat pump system 100 enters from the first heat exchange fin and is output from the upper air valve 600 after heat exchange. Correspondingly, the wind of the second heat pump system 200 enters from the side air valve 500 and is output from the second heat dissipation fan after heat exchange, that is, the heat exchange path of the first heat pump system 100 is to enter from the first heat exchange fin and output from the upper air valve 600, and the heat exchange path of the second heat pump system 200 is to enter from the side air valve 500 and output from the second heat dissipation fan.

[0065] In an optional embodiment of the present invention, in the series operation mode, the water inlet end of the first water side heat exchanger is connected to the water outlet end of the second water side heat exchanger; the inner air valve 400 is in a closed state, and the upper air valve 600 and the side air valve 500 are in an open state.

[0066] The multi-heat pump system has a series operation mode, that is, the first heat pump system 100 and the second heat pump system 200 are operated in series, and the first heat pump system 100 and the second heat pump system 200 are used to cool or heat together to achieve the corresponding temperature adjustment. In the series operation mode, the water inlet end of the first water-side heat exchanger is connected to the water outlet end of the second water-side heat exchanger; the inner air valve 400 is in a closed state, and the upper air valve 600 and the side air valve 500 are in an open state. The wind of the first heat pump system 100 enters from the first heat exchange fin and is output from the upper air valve 600 after heat exchange. Correspondingly, the wind of the second heat pump system 200 enters from the side air valve 500 and is output from the second heat dissipation fan after heat exchange.

[0067] In an optional embodiment of the present invention, the multi-heat pump system further includes: a first water coil indoor unit and a domestic hot water tank, the second water side heat exchanger is connected to the first water coil indoor unit, and the first water side heat exchanger is connected to the domestic hot water tank.

[0068] In the embodiment of the present invention, a first water coil internal unit and a domestic hot water tank may be provided in the water side heat exchange system of the multi-heat pump system. The temperature is controlled by using the heat in the first water coil internal unit and the domestic hot water tank, the second water side heat exchanger is connected to the first water coil internal unit, and the first water side heat exchanger is connected to the domestic hot water tank, so that the application scope of the embodiment of the present invention is wider.

[0069] In an optional embodiment of the present invention, the multi-heat pump system further comprises: an external air duct,

[0070] The air outlet of the upper air valve 600 and the air inlet of the first heat exchange fin are connected to one side of the external air duct, and an external air valve is installed on the other side of the external air duct.

[0071] In an embodiment of the present invention, an external air duct can also be set on the multi-heat pump system. One side of the external air duct is connected to the air outlet of the upper air valve 600 and the air inlet of the first heat exchange fin, and an external air valve is installed on the other side of the external air duct. The external air duct is connected to the multi-heat pump system by opening or closing the external air valve, so that the temperature can be controlled by using external fresh air.

[0072] In an optional embodiment of the present invention, the multi-heat pump system further includes: a second water coil indoor unit, a third water coil indoor unit and a water coil outdoor unit.

[0073] One end of the second water coil internal unit is connected to the water outlet of the second water side heat exchanger, and the other end is connected to the water inlet of the first water side heat exchanger;

[0074] One end of the third water coil internal unit is connected to the water outlet of the first water side heat exchanger, the other end of the third water coil internal unit is connected to one end of the water coil external unit, and the other end of the water coil external unit is connected to the water inlet of the second water side heat exchanger.

[0075] In the multi-heat pump system, a second water coil indoor unit, a third water coil indoor unit and a water coil outdoor unit can also be provided, one end of the second water coil indoor unit is connected to the water outlet of the second water side heat exchanger, and the other end is connected to the water inlet of the first water side heat exchanger; one end of the third water coil indoor unit is connected to the water outlet of the first water side heat exchanger, the other end of the third water coil indoor unit is connected to one end of the water coil outdoor unit, and the other end of the water coil outdoor unit is connected to the water inlet of the second water side heat exchanger; the water side heat exchange systems of the first heat pump system 100 and the second heat pump system 200 are interconnected through the second water coil indoor unit, the third water coil indoor unit and the water coil outdoor unit, so that they can work in coordination to perform corresponding temperature control.

[0076] In the embodiment of the present invention, a multi-heat pump system is formed by a first heat pump system 100, a second heat pump system 200, a housing 300, an inner air valve 400, a side air valve 500 and an upper air valve 600; the inner air valve 400, the first heat pump system 100 and the second heat pump system 200 are arranged on the inner side of the housing 300, and the first heat pump system 100 and the second heat pump system 200 are connected through the inner air valve 400; the side air valve 500 is arranged on the side of the first heat pump system 100 and the second heat pump system 200, and the side air valve 500 is connected to the first heat pump system 100 and the second heat pump system 200; the The upper air valve 600 is arranged above the first heat pump system 100, and the upper air valve 600 is connected to the first heat pump system 100; the inner air valve 400, the side air valve 500 and the upper air valve 600 are used to open or close in different operating modes to enable the first heat pump system 100 and the second heat pump system 200 to exchange heat; a variety of operating modes can be achieved by correspondingly controlling the inner air valve 400, the side air valve 500 and the upper air valve 600, and the mode switching can be completed by simple air valve switching, which can effectively expand the adaptability of the heat pump system, improve the adaptability of the heat pump system, and meet complex and changeable engineering needs.

[0077] Reference Figure 2 , shows a flow chart of steps of an embodiment of a control method for a multi-heat pump system of the present invention, the multi-heat pump system comprising: a first heat pump system, a second heat pump system, a shell, an inner air valve, a side air valve and an upper air valve; the inner air valve, the first heat pump system and the second heat pump system are arranged on the inner side of the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; the side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system; the upper air valve is arranged above the first heat pump system, and the upper air valve is connected to the first heat pump system. The specific structure of the multi-heat pump system can refer to the above embodiment.

[0078] The control method of the multi-heat pump system may specifically include the following steps:

[0079] Step 201, receiving an operation mode setting instruction;

[0080] The user can send an operation mode setting instruction to the multi-heat pump system through a controller such as a wired controller according to different application scenarios. The operation mode setting instruction is used to set the state of each air valve in the multi-heat pump system, thereby realizing different operation modes and adapting to different application scenarios. The multi-heat pump system can receive the operation mode setting instruction.

[0081] Step 202, according to the operation mode corresponding to the operation mode setting instruction, control the state of at least one of the inner air valve, the side air valve and the upper air valve to enable the first heat pump system and the second heat pump system to perform heat exchange.

[0082] The operating mode corresponding to the instruction can be set according to different operating modes, and the corresponding air valve state can be set, that is, the state of at least one of the inner air valve, the side air valve and the upper air valve can be controlled, so as to realize different operating modes, so that the first heat pump system and the second heat pump system can exchange heat.

[0083] Specifically, the first heat pump system includes: a first water-side heat exchanger, a first cooling fan and a first heat exchange fin; the second heat pump system includes: a second water-side heat exchanger, a second cooling fan and a second heat exchange fin. The corresponding operation mode is achieved through the heat exchange system on the water side and the wind side.

[0084] In one example of the present invention, the operation mode setting instruction corresponds to a parallel operation mode; the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes: controlling the inner air valve to be in a closed state, and the upper air valve and the side air valve to be in an open state.

[0085] You can refer to Figure 3 , for conventional heating or cooling projects, the corresponding application scenarios are cooling in summer and heating in winter. At this time, the multi-heat pump system can be in parallel operation mode. The first heat pump system and the second heat pump system are two systems that operate independently in parallel. The inner air valve can be controlled to be in a closed state, and the upper air valve and the side air valve can be controlled to be in an open state. The wind of the first heat pump system enters from the first heat exchange fin and is discharged from the upper air valve after heat exchange. The wind of the second heat pump system enters from the side air valve and is discharged from the second heat dissipation fan port. In summer, the first heat exchange fin and the second heat exchange fin heat, and the first water side heat exchanger and the second water side heat exchanger cool; in winter, the first heat exchange fin and the second heat exchange fin cool, and the first water side heat exchanger and the second water side heat exchanger heat.

[0086] In an example of the present invention, the operation mode setting instruction corresponds to a series operation mode, and the water inlet end of the first water-side heat exchanger is connected to the water outlet end of the second water-side heat exchanger.

[0087] You can refer to Figure 4For application scenarios with small water supply flow and large temperature difference requirements, a series operation mode can be adopted. The water inlet end of the first water-side heat exchanger is connected to the water outlet end of the second water-side heat exchanger. The first water-side heat exchanger and the second water-side heat exchanger are operated in series, and the wind side is operated in parallel. That is, the inner air valve can be controlled to be in a closed state, and the upper air valve and the side air valve can be controlled to be in an open state. The air of the first heat pump system enters from the first heat exchange fin and is discharged from the upper air valve after heat exchange. The air of the second heat pump system enters from the side air valve and is discharged from the second heat dissipation fan port.

[0088] In an example of the present invention, the multi-heat pump system further includes: a first water coil indoor unit and a domestic hot water tank, the second water side heat exchanger is connected to the first water coil indoor unit, and the first water side heat exchanger is connected to the domestic hot water tank; the operation mode setting instruction corresponds to a non-duct cold recovery operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes: detecting the refrigeration water outlet temperature and the domestic hot water temperature of the second heat pump system; in response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being lower than a preset hot water temperature threshold, controlling the upper air valve to be closed and the side air valve to be in a closed state, and the inner air valve to be in an open state; in response to the refrigeration water outlet temperature being higher than the preset refrigeration temperature threshold and the domestic hot water temperature being not lower than the preset hot water temperature threshold, controlling the upper air valve and the side air valve to be in a closed state, and the inner air valve to be in an open state; in response to the refrigeration water outlet temperature being not higher than the preset refrigeration temperature threshold, controlling the inner air valve to be in a closed state.

[0089] Please refer to Figure 5 In the application scenario of cooling in summer and having demand for domestic hot water, the multi-heat pump system can be operated in a non-duct cold recovery mode, so that it can operate without the need for external ducts.

[0090] The refrigeration outlet water temperature and domestic hot water temperature of the second heat pump system can be detected.

[0091] When the refrigeration outlet water temperature of the second heat pump system is higher than the preset refrigeration temperature threshold and the domestic hot water temperature of the second heat pump system is lower than the preset hot water temperature threshold, it indicates that the refrigeration output load of the multi-heat pump system is insufficient and the domestic hot water temperature is insufficient. In response to the refrigeration outlet water temperature being higher than the preset refrigeration temperature threshold and the domestic hot water temperature being lower than the preset hot water temperature threshold, the first heat pump system is started and operated, and the upper air valve and the side air valve are controlled to be in a closed state, and the inner air valve is in an open state. After the outdoor air is cooled and cooled by the first heat exchange fin, it enters the second heat exchange fin, thereby increasing the air volume and reducing the air inlet temperature, thereby increasing the refrigeration capacity of the second heat pump system.

[0092] When the refrigeration water outlet temperature is higher than the preset refrigeration temperature threshold and the domestic hot water temperature is not lower than the preset hot water temperature threshold, it means that the refrigeration output load of the multi-heat pump system is insufficient but the domestic hot water temperature is sufficient. The first heat pump system only turns on the fan, controls the upper air valve and the side air valve to be in the closed state, and the inner air valve to be in the open state. The incoming air of the second heat pump system is accelerated by the first heat dissipation fan and then flows into the second heat exchange fins, which can increase the air volume of the second heat dissipation fan and increase its cooling capacity.

[0093] When the cooling water outlet temperature is not higher than the preset cooling temperature threshold, it means that the system cooling load is sufficient or no cooling is needed. In response to the cooling water outlet temperature being not higher than the preset cooling temperature threshold, the internal air valve can be controlled to be in a closed state, and the first heat pump system and the second heat pump system operate independently.

[0094] In one example of the present invention, the multi-heat pump system further includes: an external air duct, a first water coil indoor unit and a domestic hot water tank, the second water-side heat exchanger is connected to the first water coil indoor unit, the first water-side heat exchanger is connected to the domestic hot water tank; the air outlet of the upper air valve and the air inlet of the first heat exchange fin are connected to one side of the external air duct, and an organic external air valve is installed on the other side of the external air duct; the operation mode setting instruction corresponds to the cold recovery operation mode of the air duct, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes: detecting the cooling water outlet temperature and the domestic hot water tank of the second heat pump system water temperature; in response to the refrigerated water outlet temperature being higher than the preset refrigeration temperature threshold and the domestic hot water temperature being lower than the preset hot water temperature threshold, the upper air valve is controlled to be in an open state, and the side air valve is controlled to be in a closed state; in response to the refrigerated water outlet temperature being higher than the preset refrigeration temperature threshold and the domestic hot water temperature being not lower than the preset hot water temperature threshold, the upper air valve and the side air valve are controlled to be in a closed state, and the outer air valve and the inner air valve are in an open state; in response to the refrigerated water outlet temperature being not higher than the preset refrigeration temperature threshold, the outer air valve and the side air valve are opened, and the inner air valve and the upper air valve are closed.

[0095] Also refer to Figure 5 For projects that require cooling in summer and domestic hot water, an external air duct can also be used to perform heat exchange using fresh air from the external air duct. The second water-side heat exchanger is connected to the first water coil unit, and the first water-side heat exchanger is connected to the domestic hot water tank; the air outlet of the upper air valve and the air inlet of the first heat exchange fin are connected to one side of the external air duct, and an organic external air valve is installed on the other side of the external air duct.

[0096] The multi-heat pump system can operate in duct cooling recovery mode.

[0097] The refrigeration outlet water temperature and domestic hot water temperature of the second heat pump system can be detected.

[0098] When the refrigeration water outlet temperature of the second heat pump system is higher than the preset refrigeration temperature threshold and the domestic hot water temperature of the second heat pump system is lower than the preset hot water temperature threshold, it means that the refrigeration output load of the multi-heat pump system is insufficient and the domestic hot water temperature is insufficient. The first heat pump system is started and the upper air valve is controlled to be in the open state and the side air valve to be in the closed state. The cold air cooled by the first heat exchange fin is introduced to supplement the refrigeration capacity.

[0099] When the refrigeration outlet water temperature of the second heat pump system is higher than the preset refrigeration temperature threshold and the domestic hot water temperature of the second heat pump system is not lower than the preset hot water temperature threshold, it means that the refrigeration output load of the multi-heat pump system is insufficient but the domestic hot water temperature is sufficient. The first heat pump system only turns on the fan, controls the upper air valve and the side air valve to be in the closed state, and the outer air valve and the inner air valve to be in the open state. The incoming air of the second heat pump system is accelerated by the first heat dissipation fan and then flows into the second heat exchange fins, which can increase the air volume of the second heat pump system and increase its cooling capacity.

[0100] When the cooling water outlet temperature is not higher than the preset cooling temperature threshold, it means that the cooling load is sufficient or cooling is not needed. The outer air valve and the side air valve can be controlled to be in the open state, and the inner air valve and the upper air valve can be controlled to be in the closed state. The first heat pump system and the second heat pump system operate independently.

[0101] In an example of the present invention, the multi-heat pump system also includes: a second water coil indoor unit, a third water coil indoor unit and a water coil outdoor unit, one end of the second water coil indoor unit is connected to the water outlet of the second water side heat exchanger, and the other end is connected to the water inlet of the first water side heat exchanger; one end of the third water coil indoor unit is connected to the water outlet of the first water side heat exchanger, the other end of the third water coil indoor unit is connected to one end of the water coil outdoor unit, and the other end of the water coil outdoor unit is connected to the water inlet of the second water side heat exchanger; the operation mode setting instruction corresponds to the constant temperature dehumidification operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes: controlling the side air valve and the upper air valve to be in a closed state, and the inner air valve to be in an open state; or, controlling the inner air valve to be in a closed state, and the side air valve and the upper air valve to be in an open state.

[0102] You can refer to Figure 6 For constant temperature dehumidification projects, the entire unit can be installed indoors and run in constant temperature dehumidification mode. The second water coil indoor unit, the third water coil indoor unit and the water coil outdoor unit can be set. One end of the second water coil indoor unit is connected to the water outlet of the second water side heat exchanger, and the other end is connected to the water inlet of the first water side heat exchanger; one end of the third water coil indoor unit is connected to the water outlet of the first water side heat exchanger, the other end of the third water coil indoor unit is connected to one end of the water coil outdoor unit, and the other end of the water coil outdoor unit is connected to the water inlet of the second water side heat exchanger.

[0103] When in constant temperature dehumidification operation mode, the first heat pump system can be controlled to operate, the first heat exchange fin is cooling, and the second heat pump system can operate the second heat exchange fin for heating. The side air valve and the upper air valve are controlled to be closed, and the inner air valve is controlled to be open. After the indoor air is cooled and dehumidified by the first heat pump system, it enters the second heat pump system for heating and temperature rise, and the inlet and outlet air temperatures remain constant. The first water-side heat exchanger and the second water-side heat exchanger are installed side by side. The low-temperature cold water from the second heat pump system flows into the second water coil inner unit to cool and dehumidify the indoor air. The second heat pump system heats the water and then heats the indoor air through the third water coil inner unit, thus keeping the indoor temperature constant, and the excess heat is discharged to the outside through the water coil outer unit.

[0104] When only cooling is needed indoors, the first heat pump system and the second heat pump system can also operate the corresponding fin cooling, control the inner air valve to be in a closed state, and the side air valve and the upper air valve to be in an open state, and the indoor air is cooled and cooled by the first heat exchange fin and the second heat exchange fin respectively; the second water coil indoor unit and the second water coil indoor unit are both in a closed state, and the water coil outdoor unit is in an open state to transfer heat to the outdoor air.

[0105] When only heating is needed indoors, the first heat pump system and the second heat pump system are operated for fin heating, the internal control inner air valve is in a closed state, the side air valve and the upper air valve are in an open state, and the indoor air is heated by the first heat exchange fin and the second heat exchange fin; the second water coil indoor unit and the second water coil indoor unit are both in a closed state, and the water coil outdoor unit is also in an open state, transferring the cold energy to the outdoor air.

[0106] The embodiment of the present invention forms a multi-heat pump system through a first heat pump system, a second heat pump system, a shell, an inner air valve, a side air valve and an upper air valve; the inner air valve, the first heat pump system and the second heat pump system are arranged on the inner side of the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; the side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system; the upper air valve is arranged above the first heat pump system, and the upper air valve is connected to the first heat pump system; receive an operation mode setting instruction; according to the operation mode corresponding to the operation mode setting instruction, control the state of at least one of the inner air valve, the side air valve and the upper air valve, so that the first heat pump system and the second heat pump system perform heat exchange. Multiple operation modes can be realized by correspondingly controlling the inner air valve, the side air valve and the upper air valve, and the mode switching can be completed by simply switching the air valve, which can effectively expand the adaptability of the heat pump system, improve the adaptability of the heat pump system, and meet complex and changeable engineering needs.

[0107] It should be noted that, for the sake of simplicity, the method embodiments are described as a series of action combinations, but those skilled in the art should be aware that the embodiments of the present invention are not limited by the order of the actions described, because according to the embodiments of the present invention, certain steps can be performed in other orders or simultaneously. Secondly, those skilled in the art should also be aware that the embodiments described in the specification are all preferred embodiments, and the actions involved are not necessarily required by the embodiments of the present invention.

[0108] Reference Figure 7 , an embodiment of the present invention further provides an electronic device, including:

[0109] A processor 701 and a storage medium 702, wherein the storage medium 702 stores a computer program executable by the processor 701, and when the electronic device is controlled to run, the processor 701 executes the computer program to implement the control method of the multi-heat pump system as described in any one of the embodiments of the present invention.

[0110] The multi-heat pump system comprises: a first heat pump system, a second heat pump system, a shell, an inner air valve, a side air valve and an upper air valve; the inner air valve, the first heat pump system and the second heat pump system are arranged on the inner side of the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; the side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system; the upper air valve is arranged above the first heat pump system, and the upper air valve is connected to the first heat pump system; the control method of the multi-heat pump system comprises:

[0111] Receive operation mode setting instructions;

[0112] According to the operation mode corresponding to the operation mode setting instruction, the state of at least one of the inner air valve, the side air valve and the upper air valve is controlled to enable the first heat pump system and the second heat pump system to perform heat exchange.

[0113] Optionally, the first heat pump system includes: a first water-side heat exchanger, a first heat dissipation fan and first heat exchange fins; the second heat pump system includes: a second water-side heat exchanger, a second heat dissipation fan and second heat exchange fins.

[0114] Optionally, the operation mode setting instruction corresponds to a parallel operation mode; the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve comprises:

[0115] The inner air valve is controlled to be in a closed state, and the upper air valve and the side air valve are controlled to be in an open state.

[0116] Optionally, the operation mode setting instruction corresponds to a series operation mode, and the water inlet end of the first water-side heat exchanger is connected to the water outlet end of the second water-side heat exchanger.

[0117] Optionally, the multi-heat pump system further includes: a first water coil indoor unit and a domestic hot water tank, the second water side heat exchanger is connected to the first water coil indoor unit, and the first water side heat exchanger is connected to the domestic hot water tank; the operation mode setting instruction corresponds to a non-duct cold recovery operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes:

[0118] detecting the refrigeration water outlet temperature and the domestic hot water temperature of the second heat pump system;

[0119] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being lower than a preset hot water temperature threshold, controlling the upper air valve to be closed and the side air valve to be in a closed state, and the inner air valve to be in an open state;

[0120] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being not lower than a preset hot water temperature threshold, controlling the upper air valve and the side air valve to be in a closed state and the inner air valve to be in an open state;

[0121] In response to the refrigeration water outlet temperature being not higher than a preset refrigeration temperature threshold, the inner air valve is controlled to be in a closed state.

[0122] Optionally, the multi-heat pump system further includes: an external air duct, a first water coil internal unit and a domestic hot water tank, the second water-side heat exchanger is connected to the first water coil internal unit, and the first water-side heat exchanger is connected to the domestic hot water tank; the air outlet of the upper air valve and the air inlet of the first heat exchange fin are connected to one side of the external air duct, and an organic external air valve is installed on the other side of the external air duct; the operation mode setting instruction corresponds to the air duct cold recovery operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes:

[0123] detecting the refrigeration water outlet temperature and the domestic hot water temperature of the second heat pump system;

[0124] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being lower than a preset hot water temperature threshold, controlling the upper air valve to be in an open state and the side air valve to be in a closed state;

[0125] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being not lower than a preset hot water temperature threshold, controlling the upper air valve and the side air valve to be in a closed state, and the outer air valve and the inner air valve to be in an open state;

[0126] In response to the refrigeration water outlet temperature being not higher than a preset refrigeration temperature threshold, the external air valve and the side air valve are opened, and the internal air valve and the upper air valve are closed.

[0127] Optionally, the multi-heat pump system further includes: a second water coil indoor unit, a third water coil indoor unit and a water coil outdoor unit, one end of the second water coil indoor unit is connected to the water outlet of the second water side heat exchanger, and the other end is connected to the water inlet of the first water side heat exchanger; one end of the third water coil indoor unit is connected to the water outlet of the first water side heat exchanger, the other end of the third water coil indoor unit is connected to one end of the water coil outdoor unit, and the other end of the water coil outdoor unit is connected to the water inlet of the second water side heat exchanger; the operation mode setting instruction corresponds to the constant temperature dehumidification operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes:

[0128] Control the side air valve and the upper air valve to be in a closed state, and the inner air valve to be in an open state; or,

[0129] The inner air valve is controlled to be in a closed state, and the side air valve and the upper air valve are controlled to be in an open state.

[0130] The embodiment of the present invention forms a multi-heat pump system through a first heat pump system, a second heat pump system, a shell, an inner air valve, a side air valve and an upper air valve; the inner air valve, the first heat pump system and the second heat pump system are arranged on the inner side of the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; the side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system; the upper air valve is arranged above the first heat pump system, and the upper air valve is connected to the first heat pump system; the inner air valve, the side air valve and the upper air valve are used to open or close in different operating modes so that the first heat pump system and the second heat pump system can perform heat exchange; a variety of operating modes can be realized by correspondingly controlling the inner air valve, the side air valve and the upper air valve, and the mode switching can be completed by simple air valve switching, which can effectively expand the adaptability of the heat pump system, improve the adaptability of the heat pump system, and meet complex and changeable engineering needs.

[0131] The memory may include a random access memory (RAM) or a non-volatile memory, such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the processor.

[0132] 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.

[0133] Reference Figure 8 The embodiment of the present invention further provides a computer-readable storage medium 801, on which a computer program is stored. When the computer program is executed by a processor, the control method of the multi-heat pump system as described in any one of the embodiments of the present invention is executed.

[0134] The multi-heat pump system comprises: a first heat pump system, a second heat pump system, a shell, an inner air valve, a side air valve and an upper air valve; the inner air valve, the first heat pump system and the second heat pump system are arranged on the inner side of the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; the side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system; the upper air valve is arranged above the first heat pump system, and the upper air valve is connected to the first heat pump system; the control method of the multi-heat pump system comprises:

[0135] Receive operation mode setting instructions;

[0136] According to the operation mode corresponding to the operation mode setting instruction, the state of at least one of the inner air valve, the side air valve and the upper air valve is controlled to enable the first heat pump system and the second heat pump system to perform heat exchange.

[0137] Optionally, the first heat pump system includes: a first water-side heat exchanger, a first heat dissipation fan and first heat exchange fins; the second heat pump system includes: a second water-side heat exchanger, a second heat dissipation fan and second heat exchange fins.

[0138] Optionally, the operation mode setting instruction corresponds to a parallel operation mode; the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve comprises:

[0139] The inner air valve is controlled to be in a closed state, and the upper air valve and the side air valve are controlled to be in an open state.

[0140] Optionally, the operation mode setting instruction corresponds to a series operation mode, and the water inlet end of the first water-side heat exchanger is connected to the water outlet end of the second water-side heat exchanger.

[0141] Optionally, the multi-heat pump system further includes: a first water coil indoor unit and a domestic hot water tank, the second water side heat exchanger is connected to the first water coil indoor unit, and the first water side heat exchanger is connected to the domestic hot water tank; the operation mode setting instruction corresponds to a non-duct cold recovery operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes:

[0142] detecting the refrigeration water outlet temperature and the domestic hot water temperature of the second heat pump system;

[0143] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being lower than a preset hot water temperature threshold, controlling the upper air valve to be closed and the side air valve to be in a closed state, and the inner air valve to be in an open state;

[0144] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being not lower than a preset hot water temperature threshold, controlling the upper air valve and the side air valve to be in a closed state and the inner air valve to be in an open state;

[0145] In response to the refrigeration water outlet temperature being not higher than a preset refrigeration temperature threshold, the inner air valve is controlled to be in a closed state.

[0146] Optionally, the multi-heat pump system further includes: an external air duct, a first water coil internal unit and a domestic hot water tank, the second water-side heat exchanger is connected to the first water coil internal unit, and the first water-side heat exchanger is connected to the domestic hot water tank; the air outlet of the upper air valve and the air inlet of the first heat exchange fin are connected to one side of the external air duct, and an organic external air valve is installed on the other side of the external air duct; the operation mode setting instruction corresponds to the air duct cold recovery operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes:

[0147] detecting the refrigeration water outlet temperature and the domestic hot water temperature of the second heat pump system;

[0148] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being lower than a preset hot water temperature threshold, controlling the upper air valve to be in an open state and the side air valve to be in a closed state;

[0149] In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being not lower than a preset hot water temperature threshold, controlling the upper air valve and the side air valve to be in a closed state, and the outer air valve and the inner air valve to be in an open state;

[0150] In response to the refrigeration water outlet temperature being not higher than a preset refrigeration temperature threshold, the external air valve and the side air valve are opened, and the internal air valve and the upper air valve are closed.

[0151] Optionally, the multi-heat pump system further includes: a second water coil indoor unit, a third water coil indoor unit and a water coil outdoor unit, one end of the second water coil indoor unit is connected to the water outlet of the second water side heat exchanger, and the other end is connected to the water inlet of the first water side heat exchanger; one end of the third water coil indoor unit is connected to the water outlet of the first water side heat exchanger, the other end of the third water coil indoor unit is connected to one end of the water coil outdoor unit, and the other end of the water coil outdoor unit is connected to the water inlet of the second water side heat exchanger; the operation mode setting instruction corresponds to the constant temperature dehumidification operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes:

[0152] Control the side air valve and the upper air valve to be in a closed state, and the inner air valve to be in an open state; or,

[0153] The inner air valve is controlled to be in a closed state, and the side air valve and the upper air valve are controlled to be in an open state.

[0154] The embodiment of the present invention forms a multi-heat pump system through a first heat pump system, a second heat pump system, a shell, an inner air valve, a side air valve and an upper air valve; the inner air valve, the first heat pump system and the second heat pump system are arranged on the inner side of the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; the side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system; the upper air valve is arranged above the first heat pump system, and the upper air valve is connected to the first heat pump system; the inner air valve, the side air valve and the upper air valve are used to open or close in different operating modes so that the first heat pump system and the second heat pump system can perform heat exchange; a variety of operating modes can be realized by correspondingly controlling the inner air valve, the side air valve and the upper air valve, and the mode switching can be completed by simple air valve switching, which can effectively expand the adaptability of the heat pump system, improve the adaptability of the heat pump system, and meet complex and changeable engineering needs.

[0155] The embodiment of the present invention further discloses an air conditioning unit, comprising the multi-heat pump system as described above.

[0156] The multi-heat pump system comprises: a first heat pump system, a second heat pump system, a housing, an inner air valve, a side air valve and an upper air valve;

[0157] The inner air valve, the first heat pump system and the second heat pump system are arranged inside the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve;

[0158] The side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system;

[0159] The upwind valve is disposed above the first heat pump system, and the upwind valve is connected to the first heat pump system;

[0160] The inner air valve, the side air valve and the upper air valve are used to be opened or closed in different operation modes so as to enable the first heat pump system and the second heat pump system to perform heat exchange.

[0161] Optionally, the first heat pump system includes: a first water-side heat exchanger, a first heat dissipation fan and first heat exchange fins; the second heat pump system includes: a second water-side heat exchanger, a second heat dissipation fan and second heat exchange fins.

[0162] Optionally, in the parallel operation mode, the inner air valve is in a closed state, and the upper air valve and the side air valve are in an open state; the heat exchange path of the first heat pump system is entering from the first heat exchange fin and outputting from the upper air valve, and the heat exchange path of the second heat pump system is entering from the side air valve and outputting from the second cooling fan.

[0163] Optionally, in the series operation mode, the water inlet end of the first water-side heat exchanger is connected to the water outlet end of the second water-side heat exchanger; the inner air valve is in a closed state, and the upper air valve and the side air valve are in an open state.

[0164] Optionally, it also includes: a first water coil internal unit and a domestic hot water tank,

[0165] The second water-side heat exchanger is connected to the first water coil internal unit, and the first water-side heat exchanger is connected to the domestic hot water tank.

[0166] Optionally, it also includes: an external air duct,

[0167] The air outlet of the upper air valve and the air inlet of the first heat exchange fin are connected to one side of the external air duct, and an external air valve is installed on the other side of the external air duct.

[0168] Optionally, it further includes: a second water coil internal unit, a third water coil internal unit and a water coil external unit,

[0169] One end of the second water coil internal unit is connected to the water outlet of the second water side heat exchanger, and the other end is connected to the water inlet of the first water side heat exchanger;

[0170] One end of the third water coil internal unit is connected to the water outlet of the first water side heat exchanger, the other end of the third water coil internal unit is connected to one end of the water coil external unit, and the other end of the water coil external unit is connected to the water inlet of the second water side heat exchanger.

[0171] The embodiment of the present invention forms a multi-heat pump system through a first heat pump system, a second heat pump system, a shell, an inner air valve, a side air valve and an upper air valve; the inner air valve, the first heat pump system and the second heat pump system are arranged on the inner side of the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; the side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system; the upper air valve is arranged above the first heat pump system, and the upper air valve is connected to the first heat pump system; the inner air valve, the side air valve and the upper air valve are used to open or close in different operating modes so that the first heat pump system and the second heat pump system can perform heat exchange; a variety of operating modes can be realized by correspondingly controlling the inner air valve, the side air valve and the upper air valve, and the mode switching can be completed by simple air valve switching, which can effectively expand the adaptability of the heat pump system, improve the adaptability of the heat pump system, and meet complex and changeable engineering needs.

[0172] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0173] It will be appreciated by those skilled in the art that the embodiments of the present invention may be provided as methods, devices, or computer program products. Therefore, the embodiments of the present invention may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the embodiments of the present invention may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0174] The embodiments of the present invention are described with reference to the flowcharts and / or block diagrams of the methods, terminal devices (systems), and computer program products according to the embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, as well as the combination of the processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing terminal device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing terminal device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0175] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing terminal device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0176] These computer program instructions can also be loaded onto a computer or other programmable data processing terminal device so that a series of operating steps are executed on the computer or other programmable terminal device to produce a computer-implemented process, thereby providing instructions for executing on the computer or other programmable terminal device to implement the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.

[0177] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0178] Finally, 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 terminal 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 terminal 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 terminal device including the elements.

[0179] The multi-heat pump system, the control method of the multi-heat pump system, the electronic device and the storage medium provided by the present invention are introduced in detail above. The principle and implementation mode of the present invention are explained by using specific examples in this article. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation mode and the scope of application. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A multi-heat pump system, characterized in that: include: A first heat pump system, a second heat pump system, a housing, an inner air valve, a side air valve and an upper air valve; The inner air valve, the first heat pump system and the second heat pump system are arranged inside the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; The side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system; The upwind valve is disposed above the first heat pump system, and the upwind valve is connected to the first heat pump system; The inner air valve, the side air valve and the upper air valve are used to be opened or closed in different operation modes so as to enable the first heat pump system and the second heat pump system to perform heat exchange.

2. The multi-heat pump system according to claim 1, characterized in that: The first heat pump system includes: a first water-side heat exchanger, a first heat dissipation fan and a first heat exchange fin; the second heat pump system includes: a second water-side heat exchanger, a second heat dissipation fan and a second heat exchange fin.

3. The multi-heat pump system according to claim 2, characterized in that: In the parallel operation mode, the inner air valve is in a closed state, and the upper air valve and the side air valve are in an open state; the heat exchange path of the first heat pump system enters from the first heat exchange fin and outputs from the upper air valve, and the heat exchange path of the second heat pump system enters from the side air valve and outputs from the second cooling fan.

4. The multi-heat pump system according to claim 2, characterized in that: In the series operation mode, the water inlet end of the first water-side heat exchanger is connected to the water outlet end of the second water-side heat exchanger; the inner air valve is in a closed state, and the upper air valve and the side air valve are in an open state.

5. The multi-heat pump system according to claim 2, characterized in that: Also includes: The first water coil unit and domestic hot water tank, The second water-side heat exchanger is connected to the first water coil internal unit, and the first water-side heat exchanger is connected to the domestic hot water tank.

6. The multi-heat pump system according to claim 5, characterized in that: Also includes: External air duct, The air outlet of the upper air valve and the air inlet of the first heat exchange fin are connected to one side of the external air duct, and an external air valve is installed on the other side of the external air duct.

7. The multi-heat pump system according to claim 2, characterized in that: Also includes: The second water coil internal unit, the third water coil internal unit and the water coil external unit, One end of the second water coil internal unit is connected to the water outlet of the second water side heat exchanger, and the other end is connected to the water inlet of the first water side heat exchanger; One end of the third water coil internal unit is connected to the water outlet of the first water side heat exchanger, the other end of the third water coil internal unit is connected to one end of the water coil external unit, and the other end of the water coil external unit is connected to the water inlet of the second water side heat exchanger.

8. A control method for a multi-heat pump system, characterized in that: The multi-heat pump system comprises: a first heat pump system, a second heat pump system, a shell, an inner air valve, a side air valve and an upper air valve; the inner air valve, the first heat pump system and the second heat pump system are arranged on the inner side of the shell, and the first heat pump system and the second heat pump system are connected through the inner air valve; the side air valve is arranged on the side of the first heat pump system and the second heat pump system, and the side air valve is connected to the first heat pump system and the second heat pump system; the upper air valve is arranged above the first heat pump system, and the upper air valve is connected to the first heat pump system; the method comprises: Receive operation mode setting instructions; According to the operation mode corresponding to the operation mode setting instruction, the state of at least one of the inner air valve, the side air valve and the upper air valve is controlled to enable the first heat pump system and the second heat pump system to perform heat exchange.

9. The method according to claim 8, characterized in that The first heat pump system includes: a first water-side heat exchanger, a first heat dissipation fan and a first heat exchange fin; the second heat pump system includes: a second water-side heat exchanger, a second heat dissipation fan and a second heat exchange fin.

10. The method according to claim 9, characterized in that The operation mode setting instruction corresponds to the parallel operation mode; the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve comprises: The inner air valve is controlled to be in a closed state, and the upper air valve and the side air valve are controlled to be in an open state.

11. The method according to claim 9, characterized in that The operation mode setting instruction corresponds to a series operation mode, and the water inlet end of the first water-side heat exchanger is connected to the water outlet end of the second water-side heat exchanger.

12. The method according to claim 9, characterized in that The multi-heat pump system further includes: a first water coil indoor unit and a domestic hot water tank, the second water side heat exchanger is connected to the first water coil indoor unit, and the first water side heat exchanger is connected to the domestic hot water tank; the operation mode setting instruction corresponds to a non-duct cold recovery operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes: detecting the refrigeration water outlet temperature and the domestic hot water temperature of the second heat pump system; In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being lower than a preset hot water temperature threshold, controlling the upper air valve to be closed and the side air valve to be in a closed state, and the inner air valve to be in an open state; In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being not lower than a preset hot water temperature threshold, controlling the upper air valve and the side air valve to be in a closed state and the inner air valve to be in an open state; In response to the refrigeration water outlet temperature being not higher than a preset refrigeration temperature threshold, the inner air valve is controlled to be in a closed state.

13. The method according to claim 9, characterized in that The multi-heat pump system further includes: an external air duct, a first water coil internal unit and a domestic hot water tank, the second water side heat exchanger is connected to the first water coil internal unit, the first water side heat exchanger is connected to the domestic hot water tank; the air outlet of the upper air valve and the air inlet of the first heat exchange fin are connected to one side of the external air duct, and an organic external air valve is installed on the other side of the external air duct; the operation mode setting instruction corresponds to the air duct cold recovery operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes: detecting the refrigeration water outlet temperature and the domestic hot water temperature of the second heat pump system; In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being lower than a preset hot water temperature threshold, controlling the upper air valve to be in an open state and the side air valve to be in a closed state; In response to the refrigeration water outlet temperature being higher than a preset refrigeration temperature threshold and the domestic hot water temperature being not lower than a preset hot water temperature threshold, controlling the upper air valve and the side air valve to be in a closed state, and the outer air valve and the inner air valve to be in an open state; In response to the refrigeration water outlet temperature being not higher than a preset refrigeration temperature threshold, the external air valve and the side air valve are opened, and the internal air valve and the upper air valve are closed.

14. The method according to claim 9, characterized in that The multi-heat pump system further includes: a second water coil indoor unit, a third water coil indoor unit and a water coil outdoor unit, one end of the second water coil indoor unit is connected to the water outlet of the second water side heat exchanger, and the other end is connected to the water inlet of the first water side heat exchanger; one end of the third water coil indoor unit is connected to the water outlet of the first water side heat exchanger, the other end of the third water coil indoor unit is connected to one end of the water coil outdoor unit, and the other end of the water coil outdoor unit is connected to the water inlet of the second water side heat exchanger; the operation mode setting instruction corresponds to the constant temperature dehumidification operation mode, and the step of controlling the state of at least one of the inner air valve, the side air valve and the upper air valve includes: Control the side air valve and the upper air valve to be in a closed state, and the inner air valve to be in an open state; or, The inner air valve is controlled to be in a closed state, and the side air valve and the upper air valve are controlled to be in an open state.

15. An electronic device, characterized in that: The method comprises a processor, a memory and a computer program stored in the memory and capable of running on the processor, wherein when the computer program is executed by the processor, the steps of the control method of the multi-heat pump system as described in any one of claims 8 to 14 are implemented.

16. A computer-readable storage medium, characterized in that: The computer-readable storage medium stores a computer program, and when the computer program is executed by a processor, the steps of the control method of the multi-heat pump system according to any one of claims 8 to 14 are implemented.

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