Drying control method of clothes treatment equipment and clothes treatment equipment

Abstract

The invention relates to the technical field of clothes treatment, in particular to a drying control method of clothes treatment equipment and the clothes treatment equipment, and aims to solve the problem that the running time of a drying program of existing clothes treatment equipment is long. Therefore, the clothes processing equipment comprises an air duct, a compressor, a first heat exchanger, a first throttling valve, a second heat exchanger, a first refrigerant pipeline, a second refrigerant pipeline, a second throttling valve and a liquid storage device, and the second throttling valve and the liquid storage device are installed on the second refrigerant pipeline. The method comprises the steps that the compressor is started, and the two throttling valves are opened; and the second throttling valve is closed when the preset condition is met. In the later stage of the drying procedure, the second throttling valve is closed, refrigerants participating in circulation in the system are reduced, heat dissipated by the first heat exchanger can be reduced, moisture condensation of wet airflow is facilitated, the dehumidification efficiency is improved, the drying time is shortened, and the second throttling valve can be closed at a more accurate time through setting of preset conditions.

Description

Technical Field

[0001] The present invention relates to the technical field of clothing processing, and specifically provides a drying control method for clothing processing equipment and clothing processing equipment. Background Art

[0002] Clothes processing equipment mainly includes drying machines, clothes dryers and washer-dryers.

[0003] Taking clothes dryers as an example, most existing clothes dryers use heat pump drying systems to dry clothes in the clothes dryer. The fan circulates the air in the clothes dryer. The air is heated at the condenser of the heat pump drying system and then enters the clothes dryer. The high-temperature and high-humidity air discharged from the clothes dryer is condensed and dehumidified at the evaporator and then returned to the condenser for heating. The heat pump drying system of the heat pump dryer can recycle heat, thus saving more energy.

[0004] However, the operation time of the drying program of the existing heat pump type dryer is still relatively long, resulting in a poor user experience, thus affecting the promotion and use of the heat pump type dryer.

[0005] Therefore, this field needs a new technical solution to solve the above problems. Summary of the invention

[0006] The present invention aims to solve the above technical problem, that is, to solve the problem that the drying program of the existing clothing processing equipment has a long running time, resulting in a poor user experience.

[0007] In a first aspect, the present invention provides a drying control method for a clothing processing device, the clothing processing device comprising a clothing processing drum and a heat pump drying system, the heat pump drying system comprising an air duct, a compressor, a first heat exchanger, a first throttle valve, a second heat exchanger, and a first refrigerant pipeline connecting the compressor, the first heat exchanger, the first throttle valve and the second heat exchanger in series in sequence, both ends of the air duct are connected to the clothing processing drum, the first heat exchanger and the second heat exchanger are both installed in the air duct, and the first heat exchanger is located downstream of the second heat exchanger along the flow direction of the airflow in the air duct, the heat pump drying system also includes a second refrigerant pipeline located between the first heat exchanger and the second heat exchanger, and a second throttle valve and a liquid accumulator installed on the second refrigerant pipeline, the second refrigerant pipeline is arranged in parallel with the first throttle valve, and the liquid accumulator can store refrigerant, and the drying control method includes:

[0008] Starting the compressor and opening the first throttle valve and the second throttle valve;

[0009] Determine whether the preset conditions are met;

[0010] When the preset condition is met, the second throttle valve is closed.

[0011] In the preferred technical solution of the drying control method of the above-mentioned clothes processing device, the step of "determining whether the preset conditions are met" specifically includes:

[0012] Obtaining the moisture content of the clothes in the clothes processing drum;

[0013] According to the moisture content, it is determined whether a preset condition is met.

[0014] In the preferred technical solution of the drying control method of the above-mentioned clothes processing device, the step of "determining whether the preset condition is met according to the moisture content" specifically includes:

[0015] It is determined whether the moisture content is less than a preset moisture content.

[0016] In the preferred technical solution of the drying control method of the above-mentioned clothes processing equipment, the preset moisture content is any value between 6% and 10%.

[0017] In the preferred technical solution of the drying control method of the above-mentioned clothes processing device, the step of "determining whether the preset conditions are met" specifically includes:

[0018] It is determined whether the time for the clothes processing device to run the drying program reaches a preset time.

[0019] In a preferred technical solution of the drying control method of the above-mentioned clothes processing device, the preset time corresponds to the initial weight and initial moisture content of the clothes in the clothes processing drum.

[0020] In the preferred technical solution of the drying control method of the above-mentioned clothes processing equipment, the drying control method further includes:

[0021] When the preset condition is met, the opening of the first throttle valve is reduced.

[0022] In the preferred technical solution of the drying control method of the above-mentioned clothes processing device, the step of "reducing the opening of the first throttle valve" specifically includes:

[0023] The opening degree of the first throttle valve is reduced by any value between 10% and 20%.

[0024] In a second aspect, the present invention further provides a clothes processing device, comprising a controller, wherein the controller is configured to execute the above-mentioned drying control method.

[0025] In the preferred technical solution of the drying control method for the above-mentioned clothing processing device, the clothing processing device is a clothes dryer or a washer-dryer.

[0026] When adopting the above technical scheme, the heat pump drying system of the present invention adds a liquid reservoir on the second refrigerant pipeline between the first heat exchanger and the second heat exchanger, and in the later stage of the drying process, closes the second throttle valve on the second refrigerant pipeline, so that the refrigerant in the liquid reservoir no longer participates in the circulation, so as to reduce the refrigerant participating in the circulation operation in the system, thereby reducing the heat dissipated by the first heat exchanger and the temperature of the circulating airflow, which is conducive to condensing the moisture carried by the circulating airflow, improving the dehumidification efficiency in the later stage of the drying process, and reducing the drying time and energy consumption. In addition, preset conditions are also set, so that the second throttle valve can be closed at a more accurate time, which is more conducive to improving the dehumidification efficiency of the heat pump drying system and reducing the running time of the drying process.

[0027] Furthermore, by setting the preset condition that the moisture content of the clothes in the clothes processing drum is less than the preset moisture content, the timing of closing the second throttle valve can be determined more accurately, which is more conducive to improving the dehumidification efficiency of the heat pump drying system.

[0028] Furthermore, by making the preset time correspond to the initial weight and initial moisture content of the clothes in the clothing processing drum, the specific value of the preset time is more closely matched with the initial weight and initial moisture content of the clothes in the clothing processing drum, thereby being able to more accurately determine the timing for closing the second throttle valve, which is more conducive to improving the dehumidification efficiency of the heat pump drying system.

[0029] Furthermore, when the preset conditions are met, the temperature of the second heat exchanger can be lowered by reducing the opening of the first throttle valve, which is more conducive to condensing the moisture in the humid air, thereby further improving the dehumidification efficiency of the heat pump drying system.

[0030] In addition, the clothing processing device further provided by the present invention on the basis of the above-mentioned technical scheme includes the above-mentioned drying control method, and thus has the technical effect possessed by the above-mentioned drying control method. Compared with the clothing processing device before the improvement, the clothing processing device of the present invention has a higher drying efficiency and is thus more energy-saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:

[0032] Figure 1 is a schematic diagram of a heat pump drying system of a clothes processing device of the present invention;

[0033] Figure 2 is a flow chart of a drying control method of a clothes processing device of the present invention;

[0034] Figure 3 is a flow chart of a first embodiment of a drying control method for a clothes processing device of the present invention;

[0035] Figure 4 It is a flow chart of a second embodiment of a drying control method for a clothes processing device of the present invention.

[0036] List of reference numerals:

[0037] 1. Compressor; 2. First heat exchanger; 3. Second heat exchanger; 4. First throttle valve; 5. Second throttle valve; 6. First refrigerant pipeline; 7. Second refrigerant pipeline; 8. Liquid storage tank. DETAILED DESCRIPTION

[0038] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0039] The preferred embodiment of the present invention is described below with reference to the accompanying drawings. It should be understood by those skilled in the art that, in the description of the present invention, although the various steps of the drying control method of the present invention are described in a specific order in this application, these orders are not restrictive, and those skilled in the art can perform the steps in different orders without departing from the basic principles of the present invention. For example, the execution order of step S300 and step S400 of the drying control method of the present invention can also be interchanged, or step S300 and step S400 can be performed simultaneously, and the adjusted technical solution is equivalent to the technical solution described in this application, and therefore will also fall within the protection scope of the present invention.

[0040] It should be noted that in the description of the present invention, the terms "inside", "outside", "upper", "lower", "left", "right" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0041] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "setting", "connection" and "installation" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] Specifically, the present invention provides a clothes processing device, which includes a clothes processing drum and a heat pump drying system, wherein the clothes processing drum is used to accommodate clothes, and the heat pump drying system is used to dry the clothes in the clothes processing drum.

[0043] like Figure 1 As shown, the heat pump drying system of the present invention includes an air duct (not shown in the figure), a compressor 1, a first heat exchanger 2, a second heat exchanger 3, a first throttle valve 4, a second throttle valve 5, a first refrigerant pipeline 6, a second refrigerant pipeline 7 and a liquid storage tank 8.

[0044] Wherein, both ends of the air duct are connected to the clothing processing drum of the clothing processing equipment, and the first refrigerant pipeline 6 connects the compressor 1, the first heat exchanger 2, the first throttle valve 4 and the second heat exchanger 3 in series in sequence. The first heat exchanger 2 and the second heat exchanger 3 are both installed in the air duct, along the flow direction of the airflow in the air duct (from Figure 1 (The airflow flows from left to right when viewed from above) The first heat exchanger 2 is located downstream of the second heat exchanger 3, the second throttle valve 5, the second refrigerant pipeline 7 and the liquid accumulator 8 are all located between the first heat exchanger 2 and the second heat exchanger 3, the second refrigerant pipeline 7 is arranged in parallel with the first throttle valve 4, the second throttle valve 5 and the liquid accumulator 8 are both installed on the second refrigerant pipeline 7, and the liquid accumulator 8 can store refrigerant.

[0045] For example, Figure 1 As shown, the first heat exchanger 2 is located on the right side of the second heat exchanger 3, the first throttle valve 4 is located on the first refrigerant pipeline 6 between the first heat exchanger 2 and the second heat exchanger 3, the left end of the second refrigerant pipeline 7 is connected to the first refrigerant pipeline 6 and the connection point is located between the first throttle valve 4 and the second heat exchanger 3, the right end of the second refrigerant pipeline 7 is connected to the first refrigerant pipeline 6 and the connection point is located between the first throttle valve 4 and the first heat exchanger 2, that is, the second refrigerant pipeline 7 is connected to the first throttle valve 4. The second throttle valve 5 is arranged on the second refrigerant pipeline 7 at the inlet end of the accumulator 8, that is, the second throttle valve 5 and the accumulator 8 are also arranged in parallel with the first throttle valve 4, and the air flow in the air duct flows from left to right, that is, the air flow in the air duct first flows through the second heat exchanger 3, and then flows through the first heat exchanger 2.

[0046] When the clothing processing device executes the drying program, the compressor 1 starts, and the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 1 first flows into the first heat exchanger 2 along the first refrigerant pipeline 6 for evaporation and heat dissipation. The refrigerant flowing out of the first heat exchanger 2 is condensed and absorbs heat when flowing through the second heat exchanger 3. The moisture in the humid air flow discharged from the clothing processing drum is condensed when flowing through the second heat exchanger 3, so that the humid air flow is converted into a dry air flow. When the dry air flow flows through the first heat exchanger 2, it absorbs the heat dissipated by the first heat exchanger 2 and becomes a high-temperature air flow. The high-temperature air flow flows back to the clothing processing drum to take away the moisture on the clothes in the clothing processing drum, completing a drying cycle. Of course, the heat pump drying system of the present invention also includes a fan to enable the air flow to circulate.

[0047] After long-term research by the inventors, it was found that the main reason why the drying program of the clothing processing equipment runs for a long time is that the dehumidification efficiency of the heat pump drying system in the later stage of the drying program is greatly reduced. Specifically, in the early stage of the drying program, the moisture content of the clothes in the clothing processing drum is high, and a high evaporation temperature is used to quickly evaporate the moisture in the clothes. However, as the moisture content of the clothes decreases, the high evaporation temperature continues to be used, the system temperature is too high, and the moisture in the humid air is difficult to condense, which leads to a greatly reduced dehumidification efficiency.

[0048] Based on the above findings, the heat pump drying system of the present invention adds a second refrigerant pipeline 7 arranged in parallel with the first throttle valve 4 between the first heat exchanger 2 and the second heat exchanger 3, and installs a second throttle valve 5 and a liquid reservoir 8 on the second refrigerant pipeline 7. In this way, in the later stage of the drying process, the second throttle valve 5 can be closed, and the refrigerant in the liquid reservoir 8 will no longer participate in the circulation. In other words, the refrigerant participating in the circulation operation in the system is reduced. In this way, the heat dissipated by the first heat exchanger 2 can be reduced, and the temperature of the circulating airflow can be reduced, which is conducive to condensing the moisture carried by the humid airflow, improving the dehumidification efficiency in the later stage of the drying process, thereby reducing the running time of the drying process.

[0049] Based on the above-mentioned clothes processing device, the present invention also provides a control method for the clothes processing device, such as Figure 2 As shown, the drying control method of the present invention comprises the following steps:

[0050] S100: starting the compressor 1 and opening the first throttle valve 4 and the second throttle valve 5;

[0051] S200: Determine whether a preset condition is met;

[0052] S300: When the preset condition is met, the second throttle valve 5 is closed.

[0053] That is to say, when the clothing processing equipment starts to execute the drying program, the first throttle valve 4 and the second throttle valve 5 are both in the open state. At this time, all the refrigerant in the system participates in the circulation operation. When the preset conditions are met, the second throttle valve 5 is closed. After the second throttle valve 5 is closed, the refrigerant in the liquid storage tank 8 no longer participates in the circulation. In other words, the refrigerant participating in the circulation operation in the system is reduced. In this way, the heat dissipated by the first heat exchanger 2 can be reduced, and the temperature of the circulating airflow can be reduced, which is conducive to condensing the moisture carried by the circulating airflow, improving the dehumidification efficiency in the later stage of the drying program, and reducing the drying time and energy consumption. The setting of the preset conditions can enable the clothing processing equipment to close the second throttle valve 5 at a more accurate time.

[0054] It should be noted that the present invention does not limit the content of the preset conditions. For example, the preset conditions can be set to the running time of the clothing processing equipment to execute the drying program reaches the set time, or the preset conditions can be set to the moisture content of the clothes in the clothing processing drum drops to a preset moisture content, and so on. Such adjustments and changes to the specific content of the preset conditions do not deviate from the principle and scope of the present invention, and should be limited within the protection scope of the present invention.

[0055] The drying control method of the present invention is described in detail below in conjunction with two specific embodiments.

[0056] Embodiment 1

[0057] like Figure 3 As shown, the control method of this embodiment includes the following steps:

[0058] S100: Start the compressor 1 and open the first throttle valve 4 and the second throttle valve 5.

[0059] S200: Determine whether a preset condition is met;

[0060] Among them, step S200, the step of "determining whether the preset conditions are met" specifically includes:

[0061] S210: Obtaining the moisture content of the clothes in the clothes processing drum;

[0062] S220: Determine whether the moisture content is less than a preset moisture content.

[0063] S300: When the preset condition is met, closing the second throttle valve 5;

[0064] Specifically, when the water content is less than the preset water content, the second throttle valve 5 is closed.

[0065] That is to say, in this embodiment, it is determined whether the preset conditions are met based on the moisture content of the clothes in the clothes processing drum. Specifically, as the drying program runs, the moisture content of the clothes in the clothes processing drum gradually decreases. When the moisture content of the clothes is less than the preset moisture content, it means that the moisture content of the clothes in the clothes processing drum is low. Continuing to use a high evaporation temperature will result in a poor dehumidification effect. By executing step S300, that is, closing the second throttle valve 5, the flow rate of the refrigerant in the system can be reduced, and a low evaporation temperature is used to lower the system temperature, so that the moisture in the humid air is more easily condensed, thereby improving the dehumidification efficiency and reducing the running time of the drying program.

[0066] It should be noted that the specific step of "determining whether the preset conditions are met based on the moisture content" is not limited to the above-mentioned "determining whether the moisture content is less than the preset moisture content". For example, the specific step of "determining whether the preset conditions are met based on the moisture content" can also be limited to calculating the difference or ratio between the moisture content and the preset moisture content, and then determining whether the difference or ratio is less than the preset value. Alternatively, the specific step of "determining whether the preset conditions are met based on the moisture content" can also be limited to determining whether the duration of the moisture content being less than the preset moisture content reaches a set time, and so on. Such flexible adjustments and changes do not deviate from the principle and scope of the present invention, and should be limited within the scope of protection of the present invention.

[0067] In addition, it should be noted that the present invention does not limit the specific numerical value of the preset moisture content. In practical applications, those skilled in the art can flexibly set the specific numerical value of the preset moisture content based on experiments or experience, as long as the critical point determined by the preset moisture content can improve the dehumidification efficiency of the heat pump drying system.

[0068] Preferably, the preset moisture content is any value between 6% and 10%.

[0069] For example, those skilled in the art may set the preset moisture content to 6%, 7%, 8%, 9% or 10% in actual applications.

[0070] More preferably, the preset moisture content is 8%.

[0071] Preferably, the drying control method of the present invention further comprises the following steps:

[0072] S400: When the preset condition is met, reducing the opening of the first throttle valve 4 .

[0073] Specifically, when the water content is less than a preset water content, the opening degree of the first throttle valve 4 is reduced.

[0074] By reducing the opening of the first throttle valve 4, the temperature of the second heat exchanger 3 can be lowered, which is more conducive to condensing the moisture in the humid air, thereby further improving the dehumidification efficiency of the heat pump drying system.

[0075] It should be noted that step S300 and step S400 in this embodiment can be executed simultaneously, or step S400 can be executed first and then step S300. Such flexible adjustment and change does not deviate from the principle and scope of the present invention and should be limited within the protection scope of the present invention.

[0076] Preferably, in step S400, the step of "reducing the opening of the first throttle valve 4" specifically includes: reducing the opening of the first throttle valve 4 by any value between 10% and 20%.

[0077] For example, in actual applications, those skilled in the art may reduce the opening of the first throttle valve 4 by 10%, 12%, 14%, 16%, 18% or 20%.

[0078] Embodiment 2

[0079] like Figure 4 As shown, the control method of this embodiment includes the following steps:

[0080] S100: Start the compressor 1 and open the first throttle valve 4 and the second throttle valve 5.

[0081] S200: Determine whether a preset condition is met;

[0082] Among them, in step S200, the step of "determining whether the preset conditions are met" specifically includes: determining whether the time for the clothes processing equipment to run the drying program reaches the preset time.

[0083] S300: When the preset condition is met, closing the second throttle valve 5;

[0084] Specifically, when the time for the clothes treating apparatus to run the drying program reaches a preset time, the second throttle valve 5 is closed.

[0085] That is to say, in this embodiment, whether the preset conditions are met is determined based on the time for the clothes processing device to run the drying program. When the time for the clothes processing device to run the drying program reaches the preset time, it means that the drying program has entered the later stage, and the moisture content of the clothes in the clothes processing drum is low. Continuing to use a high evaporation temperature will result in a poor dehumidification effect. By executing step S300, that is, closing the second throttle valve 5, the flow rate of the refrigerant in the system can be reduced, a low evaporation temperature is used, the system temperature is lowered, and the moisture in the humid air is more easily condensed, thereby improving the dehumidification efficiency and reducing the running time of the drying program.

[0086] It should be noted that the present invention does not limit the specific value of the preset time. In practical applications, those skilled in the art can flexibly set the specific value of the preset time based on experiments or experience, as long as the critical point determined by the preset time can improve the dehumidification efficiency of the heat pump drying system.

[0087] Preferably, the preset time corresponds to the initial weight and initial moisture content of the clothes in the clothes treating tub.

[0088] That is to say, the preset time is not a fixed value, and the specific value of the preset time is determined by the initial weight and initial moisture content of the clothes in the clothing processing drum. In other words, before executing step S200, the drying control method of this embodiment also includes: obtaining the initial weight and initial moisture content of the clothes in the clothing processing drum, and obtaining the corresponding preset time according to the initial weight and initial moisture content of the clothes in the clothing processing drum. In this way, the specific value of the preset time is more matched with the initial weight and initial moisture content of the clothes in the clothing processing drum, so that the timing of closing the second throttle valve 5 can be determined more accurately.

[0089] It should be noted that, in actual applications, technicians in this field can determine the optimal value of the preset time under different initial weights and different initial moisture contents through experiments, and then compile it into a comparison table and store it in the controller of the clothing processing equipment, so as to determine the specific value of the preset time according to the initial weight and initial moisture content of the clothes in the clothing processing drum during the execution of the drying program.

[0090] Preferably, the drying control method of this embodiment further includes the following steps:

[0091] S400: When the preset condition is met, reducing the opening of the first throttle valve 4 .

[0092] Specifically, when the time for which the laundry treating apparatus runs the drying program reaches a preset time, the opening degree of the first throttle valve 4 is reduced.

[0093] By reducing the opening of the first throttle valve 4, the temperature of the second heat exchanger 3 can be lowered, which is more conducive to condensing the moisture in the humid air, thereby further improving the dehumidification efficiency of the heat pump drying system.

[0094] It should be noted that step S300 and step S400 in this embodiment can be executed simultaneously, or step S400 can be executed first and then step S300. Such flexible adjustment and change does not deviate from the principle and scope of the present invention and should be limited within the protection scope of the present invention.

[0095] Preferably, the step of “reducing the opening of the first throttle valve 4 ” specifically includes: reducing the opening of the first throttle valve 4 by any value between 10% and 20%.

[0096] For example, in actual applications, those skilled in the art may reduce the opening of the first throttle valve 4 by 10%, 12%, 14%, 16%, 18% or 20%.

[0097] Finally, it should be noted that the controller of the clothes processing device of the present invention is configured to be able to execute the above-mentioned drying control method. In addition, the clothes processing device of the present invention is preferably a dryer or a washer-dryer.

[0098] In addition, it should be noted that the drying control method provided in this embodiment can be stored as a program in a computer-readable storage medium. The storage medium includes a number of instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) or a processor to perform some steps of the methods of various embodiments of the present invention. The aforementioned storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and other media that can store program codes.

[0099] Those skilled in the art will appreciate that, although some embodiments described herein include certain features included in other embodiments but not other features, the combination of features of different embodiments is meant to be within the scope of the present application and form different embodiments. For example, in the claims of the present application, any one of the claimed embodiments may be used in any combination.

[0100] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A drying control method for a clothing processing device, the clothing processing device comprising a clothing processing drum and a heat pump drying system, the heat pump drying system comprising an air duct, a compressor, a first heat exchanger, a first throttle valve, a second heat exchanger, and a first refrigerant pipeline connecting the compressor, the first heat exchanger, the first throttle valve and the second heat exchanger in series in sequence, both ends of the air duct are connected to the clothing processing drum, the first heat exchanger and the second heat exchanger are both installed in the air duct, and the first heat exchanger is located downstream of the second heat exchanger along the flow direction of the airflow in the air duct, characterized in that: The heat pump drying system further includes a second refrigerant pipeline between the first heat exchanger and the second heat exchanger, and a second throttle valve and a liquid accumulator installed on the second refrigerant pipeline, the second refrigerant pipeline is arranged in parallel with the first throttle valve, and the liquid accumulator can store refrigerant. The drying control method includes: Starting the compressor and opening the first throttle valve and the second throttle valve; Determine whether the preset conditions are met; When the preset condition is met, the second throttle valve is closed.

2. The drying control method of the clothes processing device according to claim 1, characterized in that: The steps of "determining whether the preset conditions are met" specifically include: Obtaining the moisture content of the clothes in the clothes processing drum; According to the moisture content, it is determined whether a preset condition is met.

3. The drying control method of the clothes processing device according to claim 2, characterized in that: The step of "determining whether the preset conditions are met according to the moisture content" specifically includes: It is determined whether the moisture content is less than a preset moisture content.

4. The drying control method of the clothes processing device according to claim 3, characterized in that: The preset moisture content is any value between 6% and 10%.

5. The drying control method of the clothes processing device according to claim 1, characterized in that: The steps of "determining whether the preset conditions are met" specifically include: It is determined whether the time for the clothes processing device to run the drying program reaches a preset time.

6. The drying control method of the clothes processing device according to claim 5, characterized in that: The preset time corresponds to an initial weight and an initial moisture content of the laundry in the laundry treatment tub.

7. The drying control method of a clothes processing device according to any one of claims 1 to 6, characterized in that: The drying control method further comprises: When the preset condition is met, the opening of the first throttle valve is reduced.

8. The drying control method of the clothes processing device according to claim 7, characterized in that: The step of "reducing the opening of the first throttle valve" specifically includes: The opening degree of the first throttle valve is reduced by any value between 10% and 20%.

9. A clothes processing device, comprising a controller, characterized in that: The controller is configured to be able to execute the drying control method according to any one of claims 1 to 8.

10. The clothes processing device according to claim 9, characterized in that: The clothing processing device is a clothes dryer or a washer-dryer.

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