Multi-connected heat pump washing and drying integrated system

Abstract

The utility model discloses a multi-connected heat pump washing and drying integrated system which comprises a compression module, an air conditioner module, a washing and drying integrated machine module and a source module, the compression module is connected with the air conditioner module, the air conditioner module is connected with the washing and drying integrated machine module, and the compression module, the air conditioner module and the washing and drying integrated machine module are all connected with the source module; a first heat exchanger is installed in the air conditioner module and connected with a second heat exchanger in the washing and drying all-in-one machine module, the second heat exchanger is connected with a third heat exchanger in the source module, a first cold and heat source, a second cold and heat source and a third cold and heat source are arranged in the source module, and a first air pump is installed between the first heat exchanger and the first cold and heat source. A second air pump is installed between the second heat exchanger and the second cold and heat source, and a third air pump is installed between the third heat exchanger and the third cold and heat source. The heat pump function of the household air conditioner is combined with the washing and drying all-in-one machine, the efficient and energy-saving washing and drying process is achieved, and meanwhile the comprehensive utilization rate of equipment is improved.

Description

Technical Field

[0001] This utility model belongs to the field of household appliance technology, and in particular to a multi-unit heat pump washing and drying system. Background Technology

[0002] With the fast pace of modern life and increasing pressure, people face more challenges in their daily lives, often finding the washing and drying of bulky garments such as sweaters and cotton-padded coats a chore. These clothes are not only large but also often made of special materials, requiring more delicate care. Traditional hand washing is not only time-consuming and laborious but can also easily damage the clothes due to improper washing, affecting their lifespan and appearance. While dry cleaning services offer professional care, they are expensive. Furthermore, drying clothes also presents many inconveniences, such as unpredictable weather and limited space, all of which cause considerable trouble. These problems highlight the urgent need for a machine that integrates washing and drying functions to simplify the garment care process.

[0003] The market currently offers a wide variety of washer-dryer combos, primarily employing condenser and heat pump drying technologies. Condenser combos require continuous high-temperature heating of clothes, resulting in faster drying speeds, but the high temperatures can easily damage garments. In contrast, heat pump combos offer the advantage of low-temperature drying, protecting the fabric while achieving highly efficient and energy-saving drying. They are effective and energy-efficient, making them more suitable for handling delicate clothing. However, these machines are generally larger and take up more space, limiting their application in ordinary households. Therefore, how to achieve efficient cleaning and drying of clothes within limited space has become a pressing issue. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-unit heat pump washer-dryer system that solves the problem that existing washer-dryer units cannot achieve efficient cleaning and drying within a limited space.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A multi-split heat pump washer-dryer system includes a compressor module, an air conditioning module, a washer-dryer module, and a source module. The compressor module is connected to the air conditioning module, the air conditioning module is connected to the washer-dryer module, and the compressor module, air conditioning module, and washer-dryer module are all connected to the source module.

[0007] The air conditioning module is equipped with a first heat exchanger, which is connected to a second heat exchanger in the washer-dryer module. The second heat exchanger is connected to a third heat exchanger in the source module. The source module is equipped with a first cold and heat source, a second cold and heat source, and a third cold and heat source. A first air pump is installed between the first heat exchanger and the first cold and heat source, a second air pump is installed between the second heat exchanger and the second cold and heat source, and a third air pump is installed between the third heat exchanger and the third cold and heat source.

[0008] Furthermore, it also includes a regeneration module, one end of which is connected to the washer-dryer combo module, and the other end of which is connected to the source module.

[0009] Furthermore, the regenerative module includes a fourth heat exchanger. One side of the fourth heat exchanger is connected to a second heat exchanger and a second heat source via a pipeline, and the other side of the fourth heat exchanger is connected to a third heat exchanger and a third heat source via a pipeline. An eighth control valve, a ninth control valve, a tenth control valve, and an eleventh control valve are respectively installed on the pipeline. The eighth control valve is connected to the second heat exchanger and the second heat source via a pipeline. The ninth control valve is connected to the third heat exchanger and the third heat source via a pipeline. The tenth control valve is connected to a second air pump and the second heat source via a pipeline. The eleventh control valve is connected to the third heat exchanger and the third heat source via a pipeline.

[0010] Furthermore, the compression module includes a compressor and a four-way reversing valve, with the two ends of the compressor connected to opposite sides of the four-way reversing valve, respectively.

[0011] Furthermore, the other two sides of the four-way reversing valve are respectively connected to the outlet and inlet of one side of the first heat exchanger through pipelines. The outlet and inlet of the other side of the first heat exchanger are respectively connected to the first cold and heat source through pipelines. A third control valve and a fifth check valve are respectively installed on the pipeline between the outlet and inlet of the other side of the first heat exchanger and the first cold and heat source. The first air pump is installed on the pipeline between the fifth check valve and the first cold and heat source.

[0012] Furthermore, the four-way reversing valve and the first heat exchanger are respectively connected to the outlet and inlet of one side of the third heat exchanger through pipelines. The outlet and inlet of the other side of the third heat exchanger are respectively connected to the third cold and heat source through pipelines. An eleventh control valve and a seventh check valve are respectively installed on the pipeline between the outlet and inlet of the other side of the third heat exchanger and the third cold and heat source. The third air pump is installed on the pipeline between the seventh check valve and the third cold and heat source.

[0013] Furthermore, a first check valve is installed on the pipeline between the four-way reversing valve and the third heat exchanger, a first control valve and a liquid reservoir are sequentially installed on the pipeline between the first heat exchanger and the third heat exchanger, and a second control valve and a fourth check valve are respectively installed on the parallel pipeline between the liquid reservoir and the third heat exchanger.

[0014] Furthermore, a second check valve and a third check valve are installed on the pipeline between the four-way reversing valve and the first heat exchanger. The second check valve and the third check valve are connected to the inlet on one side of the second heat exchanger through pipelines. The outlet on one side of the second heat exchanger is connected to the first heat exchanger and the liquid receiver through pipelines. A first solenoid valve is installed on the pipeline between the second heat exchanger and the liquid receiver. The outlet and inlet on the other side of the second heat exchanger are respectively connected to the second cold and heat source through pipelines. A seventh control valve and a sixth check valve are respectively installed on the pipeline between the outlet and inlet on the other side of the second heat exchanger and the second cold and heat source. The second air pump is installed on the pipeline between the sixth check valve and the second cold and heat source.

[0015] Furthermore, the second heat exchanger and the seventh control valve are connected to the first heat exchanger and the fifth check valve through the first pipe. A fourth control valve is installed on the first pipe. The seventh control valve and the second cold / heat source are connected to the third control valve and the first cold / heat source through the second pipe. A fifth control valve is installed on the second pipe. The second air pump and the second cold / heat source are connected to the first air pump and the first cold / heat source through the third pipe. A sixth control valve is installed on the third pipe.

[0016] Furthermore, the second heat exchanger is connected to the third heat exchanger via a pipeline, and a second solenoid valve is installed on the pipeline between the second heat exchanger and the third heat exchanger.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This invention provides a multi-split heat pump washer-dryer system. Through the design of a multi-split system, it integrates the functions of an air conditioner and a washer-dryer by employing a compressor module, an air conditioning module, a washer-dryer module, and a power source module. Utilizing the heat pump function of the outdoor unit of a household air conditioner, it effectively utilizes heat from the ambient air, achieving a highly efficient and energy-saving washing and drying process. The outdoor unit of the air conditioner, the indoor unit of the air conditioner, and the washer-dryer in the multi-split system are connected by pipes. In winter, the heat pump heats the air for drying, and in summer, it cools the indoor environment through a cooling mode. This invention combines the heat pump function of a household air conditioner with a washer-dryer, helping users more conveniently wash and dry large items of clothing, protecting the fabric, and achieving a highly efficient and energy-saving washing and drying process, significantly improving the user experience. Simultaneously, the multi-split system allows the equipment to provide cooling in summer and heating in winter, improving the overall utilization rate of the equipment.

[0019] Furthermore, the application of the heat recovery module can efficiently recover and utilize heat from the air, effectively reducing the energy consumption of the equipment, further optimizing energy efficiency, and achieving the goal of energy conservation and environmental protection.

[0020] Furthermore, the system controls the working status of each part through several valves, ensuring efficient operation of the system in different modes. Attached Figure Description

[0021] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the multi-unit heat pump washing and drying system of this utility model.

[0023] Figure 2 This is a schematic diagram showing the operation of the air conditioning cooling mode of this utility model in conjunction with the washer-dryer combo.

[0024] Figure 3 This is a schematic diagram of the air conditioning cooling mode of this utility model operating alone.

[0025] Figure 4 This is a schematic diagram of the washer-dryer combo of this utility model operating independently.

[0026] Figure 5 This is a schematic diagram showing the operation of the air conditioning heating mode of this utility model in conjunction with the washer-dryer combo.

[0027] Figure 6 This is a schematic diagram of the air conditioner operating independently in heating mode according to this utility model.

[0028] Wherein: 1-Compressor, 2-Four-way reversing valve, 3-First check valve, 4-Second check valve, 5-Third check valve, 6-First heat exchanger, 7-Second heat exchanger, 8-First solenoid valve, 9-First control valve, 10-Second solenoid valve, 11-Third heat exchanger, 12-Second control valve, 13-Fourth check valve, 14-Liquid receiver, 15-Third control valve, 16-Fifth check valve, 17-First air pump, 18-First Cold and heat source, 19-Fourth control valve, 20-Fifth control valve, 21-Sixth control valve, 22-Seventh control valve, 23-Sixth check valve, 24-Second air pump, 25-Second cold and heat source, 26-Eighth control valve, 27-Ninth control valve, 28-Tenth control valve, 29-Fourth heat exchanger, 30-Eleventh control valve, 31-Twelfth control valve, 32-Seventh check valve, 33-Third air pump, 34-Third cold and heat source. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0030] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0031] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0033] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0035] The present invention will now be described in further detail with reference to the accompanying drawings:

[0036] See Figure 1 This utility model provides a multi-unit heat pump washer-dryer system, including a compression module, an air conditioning module, a washer-dryer module, a regeneration module, and a source module. The compression module is connected to the air conditioning module, the air conditioning module is connected to the washer-dryer module, the washer-dryer module is connected to the regeneration module, and the compression module, air conditioning module, washer-dryer module, and regeneration module are all connected to the source module.

[0037] The compression module is the power source of the entire system, used for compression and operating condition switching. The compression module contains a compressor 1, a four-way reversing valve 2, a second check valve 4, and a third check valve 5. Compressor 1 compresses the refrigerant, increasing its temperature and pressure. The four-way reversing valve 2 changes the direction of refrigerant flow, thus controlling the cooling or heating mode. The two ends of compressor 1 are connected to opposite sides of the four-way reversing valve 2. The other opposite sides of the four-way reversing valve 2 are connected via pipelines to the outlet and inlet of one side of the first heat exchanger 6. The second check valve 4 and the third check valve 5 are sequentially installed on one side of the pipeline.

[0038] The air conditioning module is used for indoor air heat exchange and control processes. It includes a first heat exchanger 6, a third control valve 15, a fifth check valve 16, and a first air pump 17. In cooling mode, the first heat exchanger 6 acts as an evaporator, providing chilled water to the air conditioning unit; in heating mode, it acts as a condenser, releasing heat. The outlet and inlet on the other side of the first heat exchanger 6 are connected to a first cold / heat source 18 via pipes. The third control valve 15 and the fifth check valve 16 are installed on different pipes connecting the outlet and inlet, respectively. The first air pump 17 is installed on the pipe between the fifth check valve 16 and the first cold / heat source 18, and is used to circulate refrigerant in the pipes.

[0039] The washer-dryer module is used for heat exchange during the drying process. It includes a second heat exchanger 7, a first solenoid valve 8, a seventh control valve 22, a sixth check valve 23, and a second air pump 24. The second heat exchanger 7 acts as a heat source during the operation of the washer-dryer, providing the necessary heat. One inlet of the second heat exchanger 7 is connected to the second check valve 4 and the third check valve 5 via piping. The outlet of the second heat exchanger 7 is connected to the first heat exchanger 6 and the third heat exchanger 11 via piping. The first solenoid valve 8 is installed on the connecting pipe between the second heat exchanger 7 and the first and third heat exchangers 11. The outlet and inlet on the other side of the second heat exchanger 7 are respectively connected to a second heat source 25 via piping. The seventh control valve 22 and the sixth check valve 23 are installed on different pipes connecting the outlet and inlet, respectively. The second air pump 24 is installed on the pipe between the sixth check valve 23 and the second heat source 25, ensuring the circulation of refrigerant within the washer-dryer module.

[0040] The regenerative module includes a fourth heat exchanger 29, an eighth control valve 26, a ninth control valve 27, a tenth control valve 28, and an eleventh control valve 30. The regenerative module recovers and utilizes waste heat through the fourth heat exchanger 29 for efficient air circulation and heating, optimizing energy use and reducing overall energy consumption. One side of the fourth heat exchanger 29 is connected to the second heat exchanger 7 and the second heat / cold source 25 via piping, and the other side is connected to the third heat exchanger 11 and the third heat / cold source 34 via piping. The eighth control valve 26 is connected to the second heat exchanger 7 and the second heat / cold source 25 via piping. The ninth control valve 27 is connected to the third heat exchanger 11 and the eleventh control valve 31 via piping. The tenth control valve 28 is connected to the second air pump 24 and the second heat / cold source 25 via piping. The eleventh control valve 30 is connected to the third heat exchanger 11 and the seventh check valve 32 via piping.

[0041] The source module includes a first heat source 18, a second heat source 25, a third heat source 34, a first check valve 3, a first control valve 9, a second solenoid valve 10, a third heat exchanger 11, a second control valve 12, a fourth check valve 13, a liquid receiver 14, a fourth control valve 19, a fifth control valve 20, a sixth control valve 21, an eleventh control valve 31, a seventh check valve 32, and a third air pump 33. These components work together to provide a stable heat source for the system, ensuring stable operation under various working conditions. The first check valve 3 is installed on the pipeline connecting one side of the four-way directional valve 2 to one side of the third heat exchanger 11. The first control valve 9 and the liquid receiver 14 are sequentially installed on the pipeline connecting one side of the first heat exchanger 6 and one side of the third heat exchanger 11. The second control valve 12 and the fourth check valve 13 are respectively installed on the parallel pipeline between the liquid receiver 14 and the third heat exchanger 11. The second solenoid valve 10 is installed on the pipeline connecting the second heat exchanger 7 and the third heat exchanger 11. The outlet and inlet of the third heat exchanger 11 are respectively connected to the third cold and heat source 34 through pipelines. The eleventh control valve 31 and the seventh check valve 32 are respectively installed on different pipelines connected to the outlet and inlet. The third air pump 33 is installed on the pipeline between the seventh check valve 32 and the third cold and heat source 34.

[0042] The second heat exchanger 7 and the seventh control valve 22 are connected to the first heat exchanger 6 and the fifth check valve 16 through the first pipe. The fourth control valve 19 is installed on the first pipe. The seventh control valve 22 and the second cold / heat source 25 are connected to the third control valve 15 and the first cold / heat source 18 through the second pipe. The fifth control valve 20 is installed on the second pipe. The second air pump 24 and the second cold / heat source 25 are connected to the first air pump 17 and the first cold / heat source 18 through the third pipe. The sixth control valve 21 is installed on the third pipe.

[0043] The working method of this utility model's multi-unit heat pump washer-dryer integrated system:

[0044] like Figure 2 As shown, under the condition that the air conditioner and washer-dryer combo are operating simultaneously, the system provides cooling and heating services to both the air conditioner and the washer-dryer combo. The first solenoid valve 8 is closed, and the second solenoid valve 10 is open; the first control valve 9, the second control valve 12, the third control valve 15, the seventh control valve 22, and the twelfth control valve 31 are open, while all other control valves are closed; the second check valve 4, the fourth check valve 13, the fifth check valve 16, the sixth check valve 23, and the seventh check valve 32 are open, while all other check valves are closed; the first air pump 17, the second air pump 24, and the third air pump 33 are all open. During operation, the first heat exchanger 6 provides chilled water to the air conditioner, the second heat exchanger 7 supplies heat to the washer-dryer combo, and the third heat exchanger 11 transfers the remaining condensation heat to the source module.

[0045] like Figure 3As shown, in the case of air conditioning cooling alone, the system only provides cooling service to the air conditioner. Control valves 9, 12, 15, 26, 27, 28, 30, and 31 are all open, while the other control valves are closed. Check valves 4, 13, 16, 23, and 32 are open, while the other check valves are closed. Air pumps 17, 24, and 33 are all open. Solenoid valve 10 is open. During operation, heat exchanger 6 provides chilled water to the air conditioning unit, and the condensation heat recovered by heat exchanger 7 is transferred to the source module via heat exchanger 29.

[0046] like Figure 4 As shown, when the washer-dryer combo is operating alone, the system only provides heating services to the washer-dryer combo. The sixth control valve 21 is closed, while the first control valve 9, second control valve 12, third control valve 15, fourth control valve 19, fifth control valve 20, and twelfth control valve 31 are open, and all other control valves are closed. The first check valve 3, second check valve 4, third check valve 5, fourth check valve 13, sixth check valve 23, and seventh check valve 32 are open, and all other check valves are closed. The second air pump 24 and the third air pump 33 are open, and all other pumps are closed. During operation, the second heat exchanger 7 supplies heat to the washer-dryer combo to meet its heating needs.

[0047] like Figure 5 As shown, under the condition that the air conditioner and washer-dryer combo are operating simultaneously, the system provides heating services to both the air conditioner and the washer-dryer combo. First check valve 3, third check valve 5, fifth check valve 16, sixth check valve 23, and seventh check valve 32 are open, while all other check valves are closed; first control valve 9, second control valve 12, third control valve 15, seventh control valve 22, and twelfth control valve 31 are open, while all other control valves are closed; first air pump 17, second air pump 24, and third air pump 33 are all open. During operation, the first heat exchanger 6 provides heat to the air conditioning unit, and the second heat exchanger 7 supplies heat to the washer-dryer combo.

[0048] like Figure 6 As shown, in the case of air conditioning operating alone (heating mode), the system only provides heating services to the air conditioner. First check valve 3, third check valve 5, sixth check valve 23, and seventh check valve 32 are open, while all other check valves are closed; first control valve 9, second control valve 12, third control valve 15, fourth control valve 19, sixth control valve 21, and twelfth control valve 31 are open, while all other control valves are closed; first air pump 17 is closed, while second air pump 24 and third air pump 33 are open. During operation, the first heat exchanger 6 provides heat to the air conditioning equipment to meet its heating needs.

[0049] This utility model's multi-split heat pump washer-dryer system achieves efficient and energy-saving operation of both the air conditioner and the washer-dryer through a flexible control strategy. Under different operating conditions, the system can automatically adjust the working status of each component to ensure system stability and energy efficiency.

[0050] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A multi-unit heat pump washer-dryer integrated system, characterized in that, It includes a compression module, an air conditioning module, a washer-dryer combo module, and a source module. The compression module is connected to the air conditioning module, the air conditioning module is connected to the washer-dryer combo module, and the compression module, air conditioning module, and washer-dryer combo module are all connected to the source module. The air conditioning module is equipped with a first heat exchanger (6), which is connected to a second heat exchanger (7) in the washer-dryer module. The second heat exchanger (7) is connected to a third heat exchanger (11) in the source module. The source module is equipped with a first cold and heat source (18), a second cold and heat source (25), and a third cold and heat source (34). A first air pump (17) is installed between the first heat exchanger (6) and the first cold and heat source (18). A second air pump (24) is installed between the second heat exchanger (7) and the second cold and heat source (25). A third air pump (33) is installed between the third heat exchanger (11) and the third cold and heat source (34).

2. The multi-unit heat pump washer-dryer integrated system according to claim 1, characterized in that, It also includes a regeneration module, one end of which is connected to the washer-dryer combo module, and the other end of which is connected to the source module.

3. A multi-unit heat pump washer-dryer integrated system according to claim 2, characterized in that, The regenerative module includes a fourth heat exchanger (29). One side of the fourth heat exchanger (29) is connected to the second heat exchanger (7) and the second cold and heat source (25) via a pipeline. The other side of the fourth heat exchanger (29) is connected to the third heat exchanger (11) and the third cold and heat source (34) via a pipeline. The pipeline is equipped with an eighth control valve (26), a ninth control valve (27), a tenth control valve (28), and an eleventh control valve (30). The eighth control valve (26) is connected to the second heat exchanger (7) and the second cold and heat source (25) via a pipeline. The ninth control valve (27) is connected to the third heat exchanger (11) and the third cold and heat source (34) via a pipeline. The tenth control valve (28) is connected to the second air pump (24) and the second cold and heat source (25) via a pipeline. The eleventh control valve (30) is connected to the third heat exchanger (11) and the third cold and heat source (34) via a pipeline.

4. A multi-unit heat pump washer-dryer integrated system according to claim 1, characterized in that, The compression module includes a compressor (1) and a four-way reversing valve (2), with the two ends of the compressor (1) connected to the opposite sides of the four-way reversing valve (2).

5. A multi-unit heat pump washer-dryer integrated system according to claim 4, characterized in that, The other two sides of the four-way reversing valve (2) are respectively connected to the outlet and inlet of one side of the first heat exchanger (6) through pipelines. The outlet and inlet of the other side of the first heat exchanger (6) are respectively connected to the first cold and heat source (18) through pipelines. A third control valve (15) and a fifth check valve (16) are respectively installed on the pipeline between the outlet and inlet of the other side of the first heat exchanger (6) and the first cold and heat source (18). The first air pump (17) is installed on the pipeline between the fifth check valve (16) and the first cold and heat source (18).

6. A multi-unit heat pump washer-dryer integrated system according to claim 4, characterized in that, The four-way reversing valve (2) and the first heat exchanger (6) are respectively connected to the outlet and inlet of one side of the third heat exchanger (11) through pipelines. The outlet and inlet of the other side of the third heat exchanger (11) are respectively connected to the third cold and heat source (34) through pipelines. An eleventh control valve (30) and a seventh check valve (32) are respectively installed on the pipeline between the outlet and inlet of the other side of the third heat exchanger (11) and the third cold and heat source (34). The third air pump (33) is installed on the pipeline between the seventh check valve (32) and the third cold and heat source (34).

7. A multi-unit heat pump washer-dryer integrated system according to claim 6, characterized in that, A first check valve (3) is installed on the pipeline between the four-way reversing valve (2) and the third heat exchanger (11). A first control valve (9) and a liquid reservoir (14) are installed sequentially on the pipeline between the first heat exchanger (6) and the third heat exchanger (11). A second control valve (12) and a fourth check valve (13) are installed on the parallel pipeline between the liquid reservoir (14) and the third heat exchanger (11).

8. A multi-unit heat pump washer-dryer integrated system according to claim 5, characterized in that, A second check valve (4) and a third check valve (5) are installed on the pipeline between the four-way reversing valve (2) and the first heat exchanger (6). The second check valve (4) and the third check valve (5) are connected to the inlet on one side of the second heat exchanger (7) through the pipeline. The outlet on one side of the second heat exchanger (7) is connected to the first heat exchanger (6) and the liquid reservoir (14) through the pipeline. A first solenoid valve (8) is installed on the pipeline between the second heat exchanger (7) and the liquid reservoir (14). The outlet and inlet on the other side of the second heat exchanger (7) are respectively connected to the second cold and heat source (25) through the pipeline. A seventh control valve (22) and a sixth check valve (23) are respectively installed on the pipeline between the outlet and inlet on the other side of the second heat exchanger (7) and the second cold and heat source (25). The second air pump (24) is installed on the pipeline between the sixth check valve (23) and the second cold and heat source (25).

9. A multi-unit heat pump washer-dryer integrated system according to claim 8, characterized in that, The second heat exchanger (7) and the seventh control valve (22) are connected to the first heat exchanger (6) and the fifth check valve (16) through the first pipe. The fourth control valve (19) is installed on the first pipe. The seventh control valve (22) and the second cold and heat source (25) are connected to the third control valve (15) and the first cold and heat source (18) through the second pipe. The fifth control valve (20) is installed on the second pipe. The second air pump (24) and the second cold and heat source (25) are connected to the first air pump (17) and the first cold and heat source (18) through the third pipe. The sixth control valve (21) is installed on the third pipe.

10. A multi-unit heat pump washer-dryer integrated system according to claim 1, characterized in that, The second heat exchanger (7) is connected to the third heat exchanger (11) through a pipeline, and a second solenoid valve (10) is installed on the pipeline between the second heat exchanger (7) and the third heat exchanger (11).

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