Multi-connected heat pump washing and drying integrated system and working method thereof

Abstract

The multi-connected heat pump washing and drying integrated system 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 increased.

Description

Technical Field

[0001] The invention belongs to the technical field of household appliances, and in particular to a multi-connected heat pump washing and drying system and a working method thereof. Background Art

[0002] As the pace of modern life accelerates and the pressure of life continues to increase, the challenges people face in daily life are also increasing. People are often troubled by the cleaning and drying of large items of clothing such as sweaters and cotton-padded clothes. These clothes are not only bulky, but also often made of special materials and require more meticulous care. The traditional hand-washing method is not only time-consuming and laborious, but also easily damages the clothes due to improper washing, affecting their service life and appearance. Although dry cleaning services can provide professional care, they are costly. In addition, drying clothes also faces many inconveniences, such as unpredictable weather and limited space, which have caused considerable troubles to people. These problems have made people urgently need a machine that integrates washing and drying functions to simplify the clothing care process.

[0003] There are many types of integrated washing and drying machines on the market, mainly using two drying technologies: condensing and heat pump. Condensing integrated machines need to continuously heat clothes at high temperatures. Although the drying speed is faster, the high temperature can easily damage the clothes. In contrast, heat pump integrated machines have the advantage of low-temperature drying. While protecting the texture of clothes, they can achieve efficient and energy-saving drying. They have good effects and high energy efficiency, and are more suitable for the processing of high-end clothes. However, the overall size of this type of machine is large and occupies more space, which limits its application in ordinary households. Therefore, how to achieve efficient cleaning and drying of clothes in a limited space has become an urgent problem to be solved. Summary of the invention

[0004] The object of the present invention is to provide a multi-connected heat pump washer-dryer system and a working method thereof, so as to solve the problem that the existing washer-dryers cannot achieve efficient cleaning and drying in a limited space.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A multi-connected heat pump washer-dryer system, comprising a compression module, an air conditioning module, a washer-dryer module and a source module, wherein the compression module is connected to the air conditioning module, the air conditioning module is connected to the washer-dryer module, and the compression module, the air conditioning module and the washer-dryer module are all connected to the source module;

[0007] A first heat exchanger is installed in the air-conditioning module, the first heat exchanger is connected to the second heat exchanger in the washer-dryer module, the second heat exchanger is connected to the third heat exchanger in the source module, the source module is provided 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 heat recovery module, one end of which is connected to the washer-dryer module, and the other end of which is connected to the source module.

[0009] Furthermore, the heat recovery module includes a fourth heat exchanger, one side of the fourth heat exchanger is connected to the second heat exchanger and the second cold heat source through a pipeline, and the other side of the fourth heat exchanger is connected to the third heat exchanger and the third cold heat source through a pipeline, and an eighth control valve, a ninth control valve, a tenth control valve and an eleventh control valve are respectively arranged on the pipeline, the eighth control valve is connected to the second heat exchanger and the second cold heat source through a pipeline, the ninth control valve is connected to the third heat exchanger and the third cold heat source through a pipeline, the tenth control valve is connected to the second air pump and the second cold heat source through a pipeline, and the eleventh control valve is connected to the third heat exchanger and the third cold heat source through a pipeline.

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

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

[0012] Furthermore, the four-way reversing valve and the first heat exchanger are respectively connected to the outlet and inlet on one side of the third heat exchanger through pipelines, the outlet and inlet on the other side of the third heat exchanger are respectively connected to the third cold and heat source through pipelines, and the eleventh control valve and the seventh check valve are respectively installed on the pipelines between the outlet and inlet on the other side of the third heat exchanger and the third cold and heat source, and 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 installed in sequence 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 pipelines 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 a pipeline, the outlet on one side of the second heat exchanger is connected to the first heat exchanger and the liquid reservoir through a pipeline, a first solenoid valve is installed on the pipeline between the second heat exchanger and the liquid reservoir, 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, and 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 is connected to the third heat exchanger through a pipeline, a second solenoid valve is installed on the pipeline between the second heat exchanger and the third heat exchanger, the second heat exchanger and the seventh control valve are connected to the first heat exchanger and the fifth check valve through a first pipeline, a fourth control valve is installed on the first pipeline, the seventh control valve and the second cold and heat source are connected to the third control valve and the first cold and heat source through a second pipeline, a fifth control valve is installed on the second pipeline, the second air pump and the second cold and heat source are connected to the first air pump and the first cold and heat source through a third pipeline, and a sixth control valve is installed on the third pipeline.

[0016] A working method of a multi-connected heat pump washing and drying system, comprising:

[0017] Under the condition that the air conditioner refrigeration and the washer-dryer are running together, the first heat exchanger provides chilled water for the air conditioner, the second heat exchanger supplies heat to the washer-dryer, and the third heat exchanger transfers the remaining condensation heat to the source module;

[0018] Under the condition that the air conditioner refrigeration and the washer-dryer are operated together, the first heat exchanger provides chilled water for the air conditioner, and the second heat exchanger transmits the recovered condensation heat to the source module through the heat recovery heat exchanger;

[0019] When the washer-dryer is operating alone, heat is supplied to the washer-dryer through the second heat exchanger;

[0020] Under the condition that the air conditioner is heating and the washer-dryer is running together, the first heat exchanger provides heat to the air conditioner, and the second heat exchanger supplies heat to the washer-dryer;

[0021] When the air conditioner is operating in heating mode alone, heat is provided to the air conditioner through the first heat exchanger.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The present invention provides a multi-split heat pump washer-dryer system. Through the design of the multi-split system, a compression module, an air conditioning module, a washer-dryer module and a source module are adopted to integrate the functions of the air conditioner and the washer-dryer. Through the heat pump function of the household air conditioner outdoor unit, the heat in the ambient air is effectively utilized to achieve an efficient and energy-saving washing and drying process. The air conditioner outdoor unit in the multi-split system is connected to the air conditioner indoor unit and the washer-dryer through a pipeline. In winter, the heat pump is used to heat the air for drying, and in summer, the indoor temperature is cooled by the cooling mode. By combining the heat pump function of the household air conditioner with the washer-dryer, the present invention helps users to complete the washing and drying of large clothes more conveniently, protects the texture of the clothes, achieves an efficient and energy-saving washing and drying process, and significantly improves the user experience. At the same time, the setting of the multi-split system enables the equipment to provide cooling function in summer and heating function in winter, thereby improving the comprehensive utilization rate of the equipment.

[0024] Furthermore, the application of the heat recovery module can efficiently recover and utilize the heat in the air, effectively reducing the energy consumption of the equipment, further optimizing the energy utilization efficiency, and achieving the purpose of energy saving and environmental protection.

[0025] Furthermore, the system controls the working status of each part through a number of valves, ensuring efficient operation of the system in different modes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 It is a schematic diagram of the overall structure of the multi-connected heat pump washing and drying system of the present invention.

[0028] Figure 2 This is a schematic diagram of the air conditioner of the present invention operating together with a washer-dryer in cooling mode.

[0029] Figure 3 This is a schematic diagram of the air conditioner operating alone in the cooling mode of the present invention.

[0030] Figure 4 This is a schematic diagram of the washer-dryer of the present invention operating alone.

[0031] Figure 5 This is a schematic diagram of the air conditioner operating together with the washer-dryer in heating mode of the present invention.

[0032] Figure 6 This is a schematic diagram of the single operation of the air conditioner in the heating mode of the present invention.

[0033] Among them: 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 reservoir, 15- third control valve, 16- fifth check valve, 17- first air pump, 18- first Cold and hot sources, 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 hot sources, 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 hot sources. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0035] 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 invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0037] In the description of the embodiments of the present invention, it should be noted that if the terms "upper", "lower", "horizontal", "inner", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, it is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", which does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0039] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The present invention is further described in detail below in conjunction with the accompanying drawings:

[0041] See also Figure 1 The present invention provides a multi-split heat pump washer-dryer system, comprising a compression module, an air-conditioning module, a washer-dryer module, a heat recovery 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 heat recovery module, and the compression module, the air-conditioning module, the washer-dryer module and the heat recovery module are all connected to the source module.

[0042] The compression module is the power source of the entire system and is used for the compression and working condition conversion process of the system. The compression module contains a compressor 1, a four-way reversing valve 2, a second check valve 4 and a third check valve 5. The compressor 1 is responsible for compressing the refrigerant and increasing its temperature and pressure. The four-way reversing valve 2 can change the flow direction of the refrigerant to control the cooling or heating mode. The two ends of the compressor 1 are respectively connected to the opposite sides of the four-way reversing valve 2, and the other opposite sides of the four-way reversing valve 2 are respectively connected to the outlet and inlet on one side of the first heat exchanger 6 through pipelines. The second check valve 4 and the third check valve 5 are installed on one side of the pipeline in sequence.

[0043] The air conditioning module is used for the heat exchange and control process of indoor air, and includes a first heat exchanger 6, a third control valve 15, a fifth check valve 16 and a first air pump 17. The first heat exchanger 6 acts as an evaporator in the cooling mode to provide chilled water for the air conditioning equipment, and acts as a condenser in the heating mode to release heat. The outlet and inlet on the other side of the first heat exchanger 6 are respectively connected to the first cold and heat source 18 through pipelines, the third control valve 15 and the fifth check valve 16 are respectively installed on different pipelines connected to the outlet and the inlet, and the first air pump 17 is installed on the pipeline between the fifth check valve 16 and the first cold and heat source 18. The first air pump 17 is used to promote the circulation of refrigerant in the pipeline.

[0044] The washer-dryer module is used for heat exchange in the drying process, and 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 serves as a heat source when the washer-dryer is running, and provides the required heat for the washer-dryer. The inlet on one side of the second heat exchanger 7 is connected to the second check valve 4 and the third check valve 5 through a pipeline, and the outlet on one side of the second heat exchanger 7 is connected to the first heat exchanger 6 and the third heat exchanger 11 through a pipeline. The first solenoid valve 8 is installed on the connecting pipeline between the second heat exchanger 7 and the first heat exchanger 6 and the third heat exchanger 11. 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 pipelines, the seventh control valve 22 and the sixth check valve 23 are respectively installed on different pipelines connected to the outlet and the inlet, and the second air pump 24 is installed on the pipeline between the sixth check valve 23 and the second cold and heat source 25. The second air pump 24 ensures the circulation of the refrigerant in the washer-dryer module.

[0045] The heat recovery 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 heat recovery module recovers and utilizes waste heat through the fourth heat exchanger 29 to efficiently circulate and heat air, optimize energy use, and reduce overall energy consumption. One side of the fourth heat exchanger 29 is connected to the second heat exchanger 7 and the second cold and heat source 25 through a pipeline, and 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 through a pipeline. The eighth control valve 26 is connected to the second heat exchanger 7 and the second cold and heat source 25 through a pipeline. The ninth control valve 27 is connected to the third heat exchanger 11 and the eleventh control valve 31 through a pipeline. The tenth control valve 28 is connected to the second air pump 24 and the second cold and heat source 25 through a pipeline. The eleventh control valve 30 is connected to the third heat exchanger 11 and the seventh check valve 32 through a pipeline.

[0046] The source module includes a first cold and hot source 18, a second cold and hot source 25 and a third cold and hot 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 reservoir 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 together provide a stable cold and hot source for the system to ensure that the system operates stably under various working conditions. The first check valve 3 is installed on the pipeline connecting one side of the four-way reversing valve 2 and one side of the third heat exchanger 11, the first control valve 9 and the liquid reservoir 14 are installed in sequence on the pipeline connecting 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 reservoir 14 and the third heat exchanger 11, and 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 on the other side of the third heat exchanger 11 are connected to the third cold and heat source 34 through pipelines respectively, the eleventh control valve 31 and the seventh check valve 32 are respectively installed on different pipelines connecting the outlet and the inlet, and the third air pump 33 is installed on the pipeline between the seventh check valve 32 and the third cold and heat source 34.

[0047] 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 pipeline, the fourth control valve 19 is installed on the first pipeline, 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 pipeline, the fifth control valve 20 is installed on the second pipeline, 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 pipeline, and the sixth control valve 21 is installed on the third pipeline.

[0048] Working method of the multi-connected heat pump washing and drying system of the present invention:

[0049] like Figure 2 As shown, under the condition that the air conditioner refrigeration and the washer-dryer are running together, the system provides refrigeration and heating services for the air conditioner and the washer-dryer at the same time. The first solenoid valve 8 is closed, and the second solenoid valve 10 is opened; 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 opened, and the 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 opened, and the other check valves are closed; the first air pump 17, the second air pump 24 and the third air pump 33 are all opened. When working, the first heat exchanger 6 provides chilled water for the air conditioner, the second heat exchanger 7 supplies heat to the washer-dryer, and the third heat exchanger 11 transmits the remaining condensation heat to the source module through the third heat exchanger 11.

[0050] like Figure 3As shown, under the condition of air conditioning cooling alone, the system only provides cooling service for the air conditioning. The first control valve 9, the second control valve 12, the third control valve 15, the eighth control valve 26, the ninth control valve 27, the tenth control valve 28, the eleventh control valve 30 and the twelfth control valve 31 are all opened, and the 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 opened, and the other check valves are closed; the first air pump 17, the second air pump 24 and the third air pump 33 are all opened; the second solenoid valve 10 is opened. During operation, the first heat exchanger 6 provides chilled water for the air conditioning equipment, and the condensation heat recovered by the second heat exchanger 7 is transported to the source module through the fourth heat exchanger 29.

[0051] like Figure 4 As shown, when the washer-dryer is operating alone, the system only provides heating service for the washer-dryer. The sixth control valve 21 is closed, the first control valve 9, the second control valve 12, the third control valve 15, the fourth control valve 19, the fifth control valve 20 and the twelfth control valve 31 are opened, and the other control valves are closed; the first check valve 3, the second check valve 4, the third check valve 5, the fourth check valve 13, the sixth check valve 23 and the seventh check valve 32 are opened, and the other check valves are closed; the second air pump 24 and the third air pump 33 are opened, and the other pumps are closed. When working, the second heat exchanger 7 supplies heat to the washer-dryer to meet its heating needs.

[0052] like Figure 5 As shown, under the condition that the air conditioner is heating and the washer-dryer is running together, the system provides heating services for the air conditioner and the washer-dryer at the same time. The first check valve 3, the third check valve 5, the fifth check valve 16, the sixth check valve 23 and the seventh check valve 32 are opened, and the other check valves are closed; 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 opened, and the other control valves are closed; the first air pump 17, the second air pump 24 and the third air pump 33 are all opened. When working, the first heat exchanger 6 provides heat for the air conditioner, and the second heat exchanger 7 supplies heat to the washer-dryer.

[0053] like Figure 6 As shown, under the condition that the air conditioner is heating alone, the system only provides heating service for the air conditioner. The first check valve 3, the third check valve 5, the sixth check valve 23 and the seventh check valve 32 are open, and the other check valves are closed; the first control valve 9, the second control valve 12, the third control valve 15, the fourth control valve 19, the sixth control valve 21 and the twelfth control valve 31 are open, and the other control valves are closed; the first air pump 17 is closed, and the second air pump 24 and the third air pump 33 are opened. When working, the first heat exchanger 6 provides heat for the air conditioning equipment to meet its heating needs.

[0054] The multi-connected heat pump washer-dryer system of the present invention realizes efficient and energy-saving operation of the air conditioner and the washer-dryer through a flexible control strategy. Under different working conditions, the system can automatically adjust the working state of each component to ensure the stability and energy efficiency of the system.

[0055] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A multi-connected heat pump washing and drying system, characterized in that: It includes a compression module, an air conditioning module, a washer-dryer module and a source module, wherein the compression module is connected to the air conditioning module, the air conditioning module is connected to the washer-dryer module, and the compression module, the air conditioning module and the washer-dryer module are all connected to the source module; A first heat exchanger (6) is installed in the air conditioning module, the first heat exchanger (6) 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 provided 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), and a third air pump (33) is installed between the third heat exchanger (11) and the third cold and heat source (34).

2. A multi-connected heat pump washing and drying system according to claim 1, characterized in that: It also includes a heat recovery module, one end of which is connected to the washer-dryer module, and the other end of which is connected to the source module.

3. A multi-connected heat pump washing and drying system according to claim 2, characterized in that: The heat recovery module comprises 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) through a pipeline, and 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) through a pipeline. An eighth control valve (26), a ninth control valve (27), a tenth control valve (28) and an eleventh control valve (30) are respectively arranged on the pipeline. The eighth control valve (26) is connected to the second heat exchanger (7) and the second cold and heat source (25) through a pipeline, the ninth control valve (27) is connected to the third heat exchanger (11) and the third cold and heat source (34) through a pipeline, the tenth control valve (28) is connected to the second air pump (24) and the second cold and heat source (25) through a pipeline, and the eleventh control valve (30) is connected to the third heat exchanger (11) and the third cold and heat source (34) through a pipeline.

4. The multi-connected heat pump washing and drying system according to claim 1, characterized in that: The compression module comprises a compressor (1) and a four-way reversing valve (2), and two ends of the compressor (1) are respectively connected to two opposite sides of the four-way reversing valve (2).

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

6. The multi-connected heat pump washing and drying 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 on one side of the third heat exchanger (11) through pipelines, and the outlet and inlet on the other side of the third heat exchanger (11) are respectively connected to the third cold and heat source (34) through pipelines. The pipelines between the outlet and inlet on the other side of the third heat exchanger (11) and the third cold and heat source (34) are respectively installed with an eleventh control valve (31) and a seventh check valve (32), and 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. The multi-connected heat pump washing and drying 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 in sequence on the pipeline between the first heat exchanger (6) and the third heat exchanger (11), and 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), respectively.

8. The multi-connected heat pump washing and drying 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 of one side of the second heat exchanger (7) through a pipeline; the outlet of one side of the second heat exchanger (7) is connected to the first heat exchanger (6) and the liquid reservoir (14) through a 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 the inlet of the other side of the second heat exchanger (7) are connected to the second cold and heat source (25) through pipelines respectively; a seventh control valve (22) and a sixth check valve (23) are installed on the pipeline between the outlet and the inlet of the other side of the second heat exchanger (7) and the second cold and heat source (25) respectively; and 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. The multi-connected heat pump washing and drying system according to claim 8, characterized in that: The second heat exchanger (7) is connected to the third heat exchanger (11) through a pipeline; a second solenoid valve (10) is installed on the pipeline between the second heat exchanger (7) and the third heat exchanger (11); 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 a first pipeline; a fourth control valve (19) is installed on the first pipeline; 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 a second pipeline; a fifth control valve (20) is installed on the second pipeline; 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 a third pipeline; and a sixth control valve (21) is installed on the third pipeline.

10. An operating method of the multi-connected heat pump washer-dryer system according to any one of claims 1 to 9, characterized in that: include: Under the condition that the air conditioner refrigeration and the washer-dryer are operated together, the first heat exchanger (6) provides chilled water for the air conditioner, the second heat exchanger (7) supplies heat to the washer-dryer, and the third heat exchanger (11) transmits the remaining condensation heat to the source module; Under the condition that the air conditioner refrigeration and the washer-dryer are operated together, the first heat exchanger (6) provides chilled water for the air conditioner, and the second heat exchanger (7) transmits the recovered condensation heat to the source module through the heat recovery heat exchanger (29); When the washer-dryer is operating alone, heat is supplied to the washer-dryer via the second heat exchanger (7); Under the condition that the air conditioner is heating and the washer-dryer is operating together, the first heat exchanger (6) provides heat to the air conditioner, and the second heat exchanger (7) supplies heat to the washer-dryer; When the air conditioner is operating in a heating mode alone, heat is provided to the air conditioner through the first heat exchanger (6).

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