Drying system and laundry treating apparatus

Abstract

Embodiments of the present application disclose a drying system and a clothes processing apparatus. The drying system comprises: a first drying subsystem comprising an evaporator, a condenser and a compressor connected by a circulating path of refrigerant; a second drying subsystem comprising a moisture absorption and removal device and a regeneration device; along a circulating path of drying air, the evaporator, the moisture absorption and removal device and the condenser are arranged in sequence, and the regeneration device comprises a heating device, the heating device being used for heating regeneration air, and the regeneration air being used for desorbing moisture adsorbed in the moisture absorption and removal device. The first drying subsystem and the second drying subsystem can work cooperatively, so that the drying degree of the drying air can be improved, and thus the drying speed and the drying effect of the drying system can be improved; and the moisture absorption and removal device in the second drying subsystem can be regenerated by being heated to desorb water vapor, so that the second drying subsystem can be used repeatedly for a long time.

Description

Technical Field

[0001] This application relates to the field of clothing processing technology, and in particular to a drying system and clothing processing equipment. Background Technology

[0002] With the improvement of living standards, clothing processing equipment with drying functions is becoming increasingly popular among consumers. Clothing processing equipment achieves its drying function by being equipped with a drying system. The drying system typically provides high-temperature, dry drying air to dry the clothes. This air circulates within the system, carrying away moisture from the clothes and then drying them again, in a continuous cycle. Therefore, increasing the dryness of the drying air provided by the drying system can improve the speed and effectiveness of drying clothes. Summary of the Invention

[0003] To address the aforementioned technical problems, embodiments of this application provide a drying system and clothing processing equipment that improves drying speed.

[0004] This application is achieved through the following technical solution.

[0005] The first aspect of this application provides a drying system, comprising: a first drying subsystem including an evaporator, a condenser, and a compressor connected via a refrigerant circulation path; and a second drying subsystem including a moisture absorption and dehumidification device and a regeneration device; wherein the evaporator, the moisture absorption and dehumidification device, and the condenser are arranged sequentially along the circulation path of the drying air, and the regeneration device includes a heating device for heating the regeneration air, the regeneration air being used to desorb the moisture adsorbed in the moisture absorption and dehumidification device.

[0006] Because the first and second drying subsystems work together to perform the drying operation, and the dehumidification device can quickly start dehumidification, the dryness of the drying air can be improved, thus enhancing the drying speed and effect of the drying system. Furthermore, the dehumidification device in the second drying subsystem can be regenerated by desorbing moisture through heating, allowing the second drying subsystem to be used repeatedly over a long period.

[0007] In some embodiments, the heating device includes a first heater and a second heater, and the regenerated air passes through the first heater and the second heater in sequence.

[0008] By using the first heater and the second heater, two-stage heating of the regeneration air can be achieved, which helps to improve the temperature and dryness of the regeneration air, and thus improves the desorption effect of the moisture absorption and dehumidification device.

[0009] In some embodiments, at least one of the first heater and the second heater is connected downstream of the compressor and upstream of the condenser along the refrigerant circulation path to exchange heat with the refrigerant compressed by the compressor and the regeneration air.

[0010] Therefore, the heat of the refrigerant compressed by the compressor can be fully utilized, which can increase the temperature of the regenerated air while reducing the energy loss at the hot end of the compressor, thus contributing to energy conservation.

[0011] In some embodiments, along the refrigerant circulation path, a first heater is connected downstream of the compressor and upstream of the condenser, the first heater being used to exchange heat between the refrigerant compressed by the compressor and the regeneration air; the second heater includes an electric heater.

[0012] Therefore, not only can the heat of the refrigerant compressed by the compressor be fully utilized, but the temperature of the regeneration air can be increased while reducing the energy loss at the hot end of the compressor. Furthermore, the rapid heating characteristic of the electric heater can be utilized to enable the second drying subsystem to start drying operations quickly.

[0013] In some embodiments, the regeneration apparatus further includes a cooler for dehumidifying the regeneration air that has passed through the dehumidification device. The cooler, heating device, and dehumidification device are arranged in sequence along the circulation path of the regeneration air.

[0014] Therefore, the cooler can be used to condense the water vapor in the regeneration air to reduce the humidity of the regeneration air, thereby improving the desorption effect of the moisture adsorbed in the dehumidification device and helping to maintain the dehumidification capacity of the dehumidification device.

[0015] In some embodiments, along the circulation path of the regeneration air, a cooler, a first heater, a second heater, and a moisture absorption and dehumidification device are arranged in sequence, and the regeneration air that passes through the moisture absorption and dehumidification device enters the cooler.

[0016] Therefore, dry hot air can be supplied to the dehumidification device, which is beneficial to improving the desorption effect of the moisture adsorbed in the dehumidification device and helps to maintain the dehumidification capacity of the dehumidification device.

[0017] In some embodiments, the first drying subsystem further includes a throttling component; along the circulation path of the refrigerant, a cooler is connected downstream of the throttling component and upstream of the evaporator, and the cooler absorbs heat through the refrigerant depressurized by the throttling component to condense water vapor in the regeneration air that has passed through the dehumidification device.

[0018] Therefore, by sharing the refrigerant circulation path with the first drying subsystem, dehumidification of the regeneration air can be achieved, which helps to simplify the structure of the drying system and save space.

[0019] In some embodiments, along the refrigerant circulation path, the evaporator, compressor, first heater, condenser, throttling device, and cooler are connected in series, and the refrigerant cooled by the cooler enters the evaporator.

[0020] In some embodiments, the dehumidification device includes a rotating mechanism and a dehumidification component. The rotating mechanism is configured to drive the dehumidification component to rotate through a dehumidification zone and a regeneration zone. The dehumidification zone is located in the circulation path of the drying air, and the regeneration zone is located in the circulation path of the regeneration air.

[0021] Therefore, by rotating the moisture-absorbing and dehumidifying component, repeated moisture absorption and regeneration of the component can be achieved. Moreover, dehumidification and regeneration are carried out in two separate areas, allowing the regeneration air and drying air to circulate independently. This enables the moisture-absorbing and dehumidifying component to be regenerated while clothes are being dried, which helps to improve the drying speed.

[0022] In some embodiments, the moisture absorption and dehumidification component includes a breathable porous structure, the material of which is zeolite, lithium chloride, silica gel, modified silica gel, or molecular sieve.

[0023] Therefore, the adsorption and desorption of moisture can be achieved easily and effectively.

[0024] In some embodiments, the drying system further includes a drying cylinder for carrying the object to be dried. Along the circulation path of the drying air, an evaporator, a dehumidification device, a condenser, and the drying cylinder are arranged in sequence, wherein the evaporator is used to dehumidify the drying air, and the condenser is used to heat the dehumidified drying air.

[0025] Therefore, it is possible to efficiently dry the items stored in the drying drum with good drying effect.

[0026] In some embodiments, the drying system further includes a filter screen, and the evaporator, dehumidification device, condenser, drying cylinder, and filter screen are arranged in sequence along the circulation path of the drying air.

[0027] Therefore, the drying air leaving the drying drum is filtered through a filter before entering the circulation path, which starts with the evaporator, thus reducing the probability of debris clogging the circulation path.

[0028] In some embodiments, the first drying subsystem further includes a first fan located in the circulation path of the drying air, the first fan providing circulation power for the drying air; the second drying subsystem further includes a second fan located in the circulation path of the regeneration air, the second fan providing circulation power for the regeneration air.

[0029] Thus, the drying air can circulate under the drive of the first fan, and the regeneration air can circulate under the drive of the second fan, thereby enabling rapid and effective drying and desorption.

[0030] A second aspect of this application provides a garment processing apparatus, comprising: a drying system as described in the first aspect.

[0031] As a result, the clothing processing equipment dries clothes quickly, improving its drying efficiency and shortening its working time.

[0032] In some embodiments, the clothing handling equipment includes a dryer or a washer-dryer combo. Attached Figure Description

[0033] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0034] Figure 1 A block diagram of a garment processing device provided in some embodiments of this application.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1. Clothing processing equipment; 11. Evaporator; 12. Compressor; 13. Condenser; 14. Throttling component; 100. Refrigerant circulation path; 2. Drying system; 21. Moisture absorption and dehumidification device; 22. Regeneration device; 23. Cooler; 24. Second fan; 200. Regeneration air circulation path; 221. First heater; 222. Second heater; 30. Drying drum; 300. Drying air circulation path; 40. First fan; 50. Filter. Detailed Implementation

[0037] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0038] With the improvement of living standards, clothing processing equipment with drying functions is becoming increasingly popular among consumers. Clothing processing equipment achieves its drying function by being equipped with a drying system. The drying system typically provides high-temperature, dry drying air to dry the clothes. This air circulates within the system, carrying away moisture from the clothes and then drying them again, in a continuous cycle. Therefore, increasing the dryness of the drying air provided by the drying system can improve the speed and effectiveness of drying clothes.

[0039] When using a heat pump drying system to dry clothes, the system typically takes a long time to start. To shorten drying time, it's desirable for the system to start up quickly. Therefore, it's considered to add an auxiliary drying system to the heat pump drying system to compensate for its slow start-up.

[0040] Based on this inventive concept, embodiments of this application provide a drying system, which includes a first drying subsystem and a second drying subsystem. The first drying subsystem includes an evaporator, a condenser, and a compressor connected via a refrigerant circulation path. The second drying subsystem includes a moisture absorption and dehumidification device and a regeneration device. Along the circulation path of the drying air, the evaporator, the moisture absorption and dehumidification device, and the condenser are arranged in sequence. The regeneration device includes a heating device for heating the regeneration air, which is used to desorb the moisture adsorbed in the moisture absorption and dehumidification device.

[0041] Because the first and second drying subsystems work together to perform the drying operation, and the dehumidification device can quickly start dehumidification, the dryness of the drying air can be improved, thus enhancing the drying speed and effect of the drying system. Furthermore, the dehumidification device in the second drying subsystem can be regenerated by desorbing moisture through heating, allowing the second drying subsystem to be used repeatedly over a long period.

[0042] Accordingly, embodiments of this application also provide a garment processing device equipped with the aforementioned drying system.

[0043] Below, in conjunction with Figure 1 The embodiments of this application are further described in detail below. Figure 1 A block diagram of a garment processing device provided in some embodiments of this application.

[0044] like Figure 1 As shown in the illustration, this application provides a clothing processing device 1, which includes a drying system 2. The clothing processing device 1 can be a dryer or a washing machine with a drying function (also known as a washer-dryer combo). The clothing processing device 1 typically has a housing, and the drying system 2 is housed within the housing. In this embodiment, the parts of the clothing processing device 1 other than the drying system 2 can adopt existing solutions, which will not be described in detail here.

[0045] The drying system 2 of this application embodiment will now be described in detail.

[0046] like Figure 1 As shown, the drying system 2 includes: a first drying subsystem, including an evaporator 11, a condenser 13, and a compressor 12 connected in series through a refrigerant circulation path; a second drying subsystem, including a moisture absorption and dehumidification device and a regeneration device; along the circulation path of the drying air, the evaporator 11, the moisture absorption and dehumidification device 21, and the condenser 13 are arranged in sequence, and the regeneration device includes a heating device for heating the regeneration air, which is used to desorb the moisture adsorbed in the moisture absorption and dehumidification device 21.

[0047] Drying system 2 can provide high-temperature dry air to dry the clothes and other items waiting to be dried in drying drum 30. After passing through drying drum 30, the high-temperature dry air becomes low-temperature humid air, which can then return to drying system 2 to become high-temperature dry air again.

[0048] In some embodiments, the first drying subsystem may further include a throttling component 14. The refrigerant circulation path 100 connects the evaporator 11, compressor 12, condenser 13, and throttling component 14 in series (in related art, this system is also referred to as a heat pump system). Drying air for drying clothes is heated by the evaporator 11 and dehumidified by the condenser 13, thus becoming high-temperature dry air. This high-temperature dry air is further circulated through the drying drum 30 containing the wet clothes for drying.

[0049] The compressor 12 is used to bring the refrigerant to a high temperature. Sometimes, appropriate heat dissipation is required before the refrigerant enters the condenser 13, resulting in a certain degree of heat loss. Furthermore, the heat pump system requires a certain amount of time from startup to normal operation, which may prevent it from quickly starting the drying process. Moreover, to improve the drying speed, it is desirable to further enhance the dryness of the high-temperature air. Therefore, a moisture absorption and dehumidification device 21 is considered for the heat pump system. To ensure continuous operation, the moisture absorption and dehumidification device 21 needs to desorb moisture after absorption. Therefore, in this embodiment, the heat carried by the refrigerant at the hot end (refrigerant output end) of the compressor 12 is used to heat the regenerated air used for desorption, thereby utilizing heat that might otherwise be lost through heat dissipation, reducing heat loss, and achieving energy-saving effects.

[0050] In detail, such as Figure 1 As shown, the second drying subsystem includes a moisture absorption and dehumidification device 21 and a heating device. The regeneration air can circulate along the regeneration air circulation path 200. Along the regeneration air circulation path 200, the moisture absorption and dehumidification device 21 and the regeneration device are connected in series. After the regeneration air passes through the moisture absorption and dehumidification device 21 to absorb moisture, the humidity increases and the temperature decreases. After passing through the regeneration device, it can be heated, and the humidity decreases.

[0051] In this embodiment, the moisture absorption and dehumidification device 21 may include a rotating mechanism and a moisture absorption and dehumidification component. The rotating mechanism is configured to drive the moisture absorption and dehumidification component to rotate. As it rotates, the moisture absorption and dehumidification component alternately passes through a moisture absorption area and a regeneration area. The moisture absorption area is located in the circulation path of the drying air, where the moisture absorption and dehumidification component can absorb moisture from the drying air. The regeneration area is located in the circulation path of the regeneration air, where moisture in the moisture absorption and dehumidification component can be desorbed by the regeneration air.

[0052] like Figure 1As shown, along the circulation path 300 of the drying air, the moisture absorption zone can be located between the evaporator and the condenser. Along the circulation path of the regeneration air, the regeneration zone is located downstream of the heating device.

[0053] In some embodiments, the moisture absorption and dehumidification component may include a breathable porous structure, the material of which is zeolite, lithium chloride, silica gel, modified silica gel, or molecular sieve.

[0054] In some embodiments, the desiccant assembly can be a desiccant disc, which can be a honeycomb or corrugated disc carrying a desiccant, capable of adsorbing and desorbing absorbed water vapor to achieve repeated desorption and regeneration. In some embodiments, the desiccant disc can include an inorganic / organic fiber carrier (such as ceramics, glass fibers, MOFs, COFs, cordierite, etc.), coated with a desiccant such as a molecular sieve, which is uniformly distributed between and on the surface of the fiber carrier to achieve adsorption of moisture in the airflow. The desiccant can be, for example, zeolite, modified / synthetic zeolite, molecular sieves (including but not limited to single-crystal or mixed-crystal molecular sieves such as A-type molecular sieves, X / Y-type molecular sieves, ZSM molecular sieves, Beta molecular sieves, etc.), polymeric desiccant, alkali metal aluminosilicates (13X molecular sieves), lithium chloride, silica gel, modified silica gel, activated alumina, and other materials with hygroscopic properties.

[0055] In one specific embodiment, the molecular sieve may be a zeolite molecular sieve.

[0056] Regarding the rotating mechanism, for example, it may include a rotary motor and a rotating shaft, with the rotating shaft connected to the output end of the rotary motor and connected to the moisture absorption and dehumidification assembly (e.g., the center of the dehumidification turntable), and driving the moisture absorption and dehumidification assembly to rotate around the rotating shaft.

[0057] In some embodiments, such as Figure 1 As shown, the regeneration device may include a heating device for heating and drying the regeneration air. The dried hot air is beneficial for the desorption of the moisture-absorbing and dehumidifying components.

[0058] In some embodiments, such as Figure 1 As shown, the heating device may include a first heater 221 and a second heater 222, with the regenerated air passing sequentially through the first heater 221 and the second heater 222. Through the first heater 221 and the second heater 222, two-stage heating can be achieved, resulting in a better heating effect.

[0059] Along the refrigerant circulation path, at least one of the first heater 221 and the second heater 222 is connected to the downstream side of the compressor and the upstream side of the condenser to exchange heat with the refrigerant compressed by the compressor and the regeneration air.

[0060] For example, the first heater 221 and / or the second heater 222 may include a path through which the refrigerant flows, and may also include a structure for heat exchange with the refrigerant, for example, a heat dissipation structure. Further, a fan may be included to facilitate the transfer of heat from the high-temperature refrigerant to the heat dissipation structure, which may come into contact with the passing regeneration air to achieve heat transfer, thereby heating the regeneration air.

[0061] In some embodiments, one of the first heater 221 and the second heater 222 may be heated by heat dissipation using a high-temperature refrigerant, while the other may be heated electrically.

[0062] For example, the first heater 221 can be a preheater that preheats the regeneration air by heat exchange with the high-temperature refrigerant, and the preheated regeneration air is further heated in the second heater 222.

[0063] The second heater 222 can be an electric heater, such as a heating tube (tubular heating element) or heating wire, or a thermistor heater.

[0064] In some embodiments, such as Figure 1 As shown, the regeneration device may also include a cooler 23, which is used to dehumidify the regeneration air that has passed through the dehumidification device. Along the circulation path of the regeneration air, the cooler 23, the heating device, and the dehumidification device 21 are arranged in sequence.

[0065] like Figure 1 As shown, along the circulation path of the regeneration air, the cooler 23 can be connected in series between the dehumidification device 21 and the heating device, and the cooler 23 can condense the regeneration air that has passed through the dehumidification device 21.

[0066] Therefore, the cooler 23 can condense the water vapor in the regeneration air and continuously provide the dehumidification device 21 with regeneration air of low humidity.

[0067] The cooler 23 can be installed between the dehumidification device 21 and the heating device. The regeneration air passing through the dehumidification device 21 has increased humidity because it carries away moisture from the dehumidification device. The increased humidity of the regeneration air is condensed in the cooler 23. Through condensation, some of the moisture in the regeneration air remains in the cooler 23 in liquid form. The regeneration air passing through the cooler 23 then passes through the first heater 221 and the second heater 222 in sequence to become high-temperature dry gas.

[0068] In some embodiments, a water storage box may be provided below the cooler 23 for collecting condensate. Optionally, the garment processing device 1 may also be provided with a drain channel, which may connect to the cooler 23 or the water storage box, so that condensate can be discharged to the outside of the garment processing device 1 through the drain channel. In some embodiments, the condensate may also be discharged into the water storage box of the garment processing device for the user to empty.

[0069] In some embodiments, such as Figure 1 As shown, along the circulation path of the refrigerant, the cooler 23 can be connected to the downstream side of the throttling component 14 and the cooler 23 can be connected to the upstream side of the evaporator 11. The cooler 23 can be used to allow the refrigerant that has been depressurized by the throttling component 14 to absorb heat (from the regeneration air) and to condense the water vapor in the regeneration air that has passed through the dehumidification device 21.

[0070] In some embodiments, such as Figure 1 As shown, along the refrigerant circulation path, the cooler 23 can be connected in series between the throttling component 14 and the evaporator 11.

[0071] For example, the refrigerant is compressed into a high-temperature, high-pressure gaseous refrigerant by the compressor. After the high-temperature, high-pressure gaseous refrigerant releases heat through the first heater 221, it further enters the condenser 13 to release heat and become a high-pressure, medium-temperature liquid refrigerant. At this time, it is cooled and depressurized by the throttling device 14 into a low-temperature, low-pressure gas-liquid two-phase refrigerant. After entering the cooler 23 to absorb heat, it then enters the evaporator 11 to continue absorbing heat and becomes a low-temperature, low-pressure gaseous refrigerant. The low-temperature, low-pressure gaseous refrigerant then enters the compressor 12 again, and so on.

[0072] The drying air is heated to high temperature and dry air after passing through the condenser 13. Then it enters the drying drum to remove the moisture from the clothes. After entering the evaporator 11, it releases heat and condenses into water. Then it enters the dehumidification device 21 for dehumidification. After entering the condenser 13 again, it is heated again, and the cycle repeats.

[0073] The regenerated air, after passing through the cooler 23, is medium-temperature and high-humidity gas. It then enters the first heater 221 and the second heater 222, where it is heated to high-temperature dry air. It then enters the regeneration area, where it carries away the moisture adsorbed by the moisture absorption and dehumidification components. After that, it enters the cooler 23 and condenses into liquid water, becoming medium-temperature and high-humidity gas again, and continues to circulate. This process is repeated continuously.

[0074] In some embodiments, the first drying subsystem further includes a first fan 40 located in the circulation path of the drying air, the first fan 40 providing circulation power for the drying air. The second drying subsystem further includes a second fan 24 located in the circulation path of the regeneration air, the second fan 24 providing circulation power for the regeneration air.

[0075] For example, the first fan 40 and the second fan 24 can be blowers, pumps, etc.

[0076] like Figure 1 As shown, in the circulation path of the drying air, the first fan 40 is located downstream of the drying cylinder 30 and upstream of the evaporator 11.

[0077] In the circulation path of the regenerated air, the second fan 24 is located downstream of the cooler 23 and upstream of the heating device (e.g., the first heater 221). In some embodiments, such as Figure 1 As shown, along the circulation path of the regeneration air, the cooler 23, the second fan 24, the first heater 221, the second heater 222, and the dehumidification device 21 are arranged in sequence, and the regeneration air passing through the dehumidification device 21 enters the cooler 23.

[0078] The working method of the embodiments of this application will be described.

[0079] like Figure 1 As shown, the high-temperature dry regeneration air passes through the dehumidification device 21, which removes moisture, increasing the humidity. The increased humidity air is then cooled and dehumidified by the cooler 23, forming medium-temperature, high-humidity gas. Although still high-humidity, this gas is less humid than the regeneration air exiting the dehumidification device 21. This medium-temperature, high-humidity gas is preheated by the second fan 24 into the first heater 221, reducing both temperature and humidity. The regeneration air exiting the first heater 221 enters the second heater 222 for further heating into high-temperature dry air. This high-temperature dry air can then enter the dehumidification device 21 to remove moisture from its surface. The regeneration air exiting the dehumidification device 21 continues to enter the cooler 23, condensing into liquid water and becoming medium-temperature, high-humidity gas for circulation. The liquid water condensed on the surface of the cooler 23 can enter the base and be directly discharged by a drain pump or stored in a water box.

[0080] In some embodiments, such as Figure 1 As shown, along the refrigerant circulation path 100, the evaporator 11, compressor 12, first heater 221, condenser 13, throttling component 14, and cooler 23 are connected in series, and the refrigerant cooled by the cooler 23 enters the evaporator 11.

[0081] In this application, the high-temperature, high-pressure gaseous refrigerant, after releasing heat in the first heater 221, enters the condenser 13, where it further releases heat and becomes a high-pressure, medium-temperature liquid refrigerant. The high-pressure, medium-temperature liquid refrigerant flowing out of the condenser 13 enters the throttling device 14, where it is cooled and depressurized into a low-temperature, low-pressure gas-liquid two-phase refrigerant. The low-temperature, low-pressure gas-liquid two-phase refrigerant flowing out of the throttling device 14 enters the cooler 23 to absorb heat. The refrigerant flowing out of the cooler 23 then enters the evaporator 11 to continue absorbing heat and forming a low-temperature, low-pressure gaseous refrigerant. The low-temperature, low-pressure gaseous refrigerant flowing out of the evaporator 11 is again compressed into a high-temperature, high-pressure gaseous refrigerant by the compressor 12, and the high-temperature, high-pressure gaseous refrigerant flowing out of the compressor 12 continues to circulate in the first heater 221.

[0082] Based on the same or similar concept, this application also provides a garment processing device, including: a drying system as described in the foregoing embodiments.

[0083] The dehumidifier in this application can absorb moisture from the drying air, thereby further drying the air and increasing its drying speed. Furthermore, this application includes a regeneration device to regenerate the dehumidifier after it has absorbed moisture, enabling its reuse and ensuring a faster drying speed. This, in turn, accelerates the drying process of the garment processing equipment, improves its efficiency, and saves operating time.

[0084] like Figure 1 As shown, the drying system may further include a drying drum 30 along the air circulation path 300. The drying air provided by the drying system enters the drying drum 30 via a first fan 40. The drying drum 30 is used to hold the clothes to be dried. Along the air circulation path, the evaporator 11, the moisture absorption and dehumidification device 21, the condenser 13, and the drying drum 30 can be arranged sequentially. The drying drum 30 can rotate, and the drying air carries away the moisture from the clothes in the drying drum 30 to achieve a drying effect.

[0085] The drying air enters the drying cylinder 30 after passing through the condenser 13, passes through the material to be dried in the drying cylinder 30, leaves the drying cylinder 30 and goes to the evaporator 11, and then passes through the moisture absorption and dehumidification device 21 and the condenser 13 in sequence from the evaporator 11, and finally returns to the drying cylinder 30 to continue the cycle.

[0086] In a washer-dryer combo, the drying drum 30 can also be used for washing clothes. The drying drum 30 can be a roller that rotates around a horizontal axis.

[0087] The drying system also includes a filter screen 50. Along the circulation path of the drying air, the evaporator 11, the moisture absorption and dehumidification device 21, the condenser 13, the drying cylinder 30, and the filter screen 50 are arranged in sequence.

[0088] The filter 50 is disposed on the circulation path of the drying air between the drying cylinder 30 and the evaporator 11. The filter 50 can be disposed in the channel through which the drying air leaves the drying cylinder 30, or at the connection interface between the drying cylinder 30 and the channel through which the drying air flows. Optionally, the filter 50 can be detached and installed.

[0089] Therefore, the drying air leaving the drying cylinder 30 is filtered by the filter screen 50 before entering the circulation path starting with the evaporator 11, which helps to reduce the probability of debris clogging the circulation path.

[0090] The drying air discharged from the drying drum 30 may carry fibers and impurities from the clothing. The filter 50 can block these impurities, preventing them from entering the drying system and affecting its effective operation.

[0091] The drying system of this application can be applied to garment processing equipment to improve its efficiency. The drying air provided by the drying system is further dehumidified by a moisture absorption and dehumidification device, which improves the dryness of the drying air, speeds up the drying process of the garment processing equipment, saves time and electricity, and ultimately improves the efficiency and reduces the energy consumption of the garment processing equipment.

[0092] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A drying system, characterized in that, include: The first drying subsystem includes an evaporator, a condenser, and a compressor connected via a refrigerant circulation path; The second drying subsystem includes a moisture absorption and dehumidification device and a regeneration device; The evaporator, the dehumidification device, and the condenser are arranged in sequence along the circulation path of the drying air. The regeneration device includes a heating device for heating the regeneration air, which is used to desorb the moisture adsorbed in the dehumidification device.

2. The drying system according to claim 1, characterized in that, The heating device includes a first heater and a second heater, and the regenerated air passes through the first heater and the second heater in sequence.

3. The drying system according to claim 2, characterized in that, Along the refrigerant circulation path, at least one of the first heater and the second heater is connected downstream of the compressor and upstream of the condenser to exchange heat with the regeneration air using the refrigerant compressed by the compressor.

4. The drying system according to claim 2, characterized in that, The regeneration device further includes a cooler for dehumidifying the regeneration air passing through the dehumidification device. The cooler, the heating device, and the dehumidification device are arranged in sequence along the circulation path of the regenerated air.

5. The drying system according to any one of claims 1 to 4, characterized in that, The first drying subsystem also includes a throttling component; Along the refrigerant circulation path, the cooler is connected downstream of the throttling device and upstream of the evaporator. The cooler uses the refrigerant, which has been depressurized by the throttling device, to absorb heat and condense the water vapor in the regeneration air that has passed through the dehumidification device.

6. The drying system according to any one of claims 1 to 4, characterized in that, The moisture absorption and dehumidification device includes a rotating mechanism and a moisture absorption and dehumidification component. The rotating mechanism is configured to drive the moisture absorption and dehumidification component to rotate through the moisture absorption area and the regeneration area. The moisture absorption area is located in the circulation path of the drying air, and the regeneration area is located in the circulation path of the regeneration air.

7. The drying system according to any one of claims 1 to 4, characterized in that, The drying system also includes a drying cylinder, which carries the items to be dried. Along the circulation path of the drying air, the evaporator, the dehumidification device, the condenser, and the drying cylinder are arranged in sequence. The evaporator is used to dehumidify the drying air, and the condenser is used to heat the dehumidified drying air.

8. The drying system according to claim 7, characterized in that, The drying system also includes a filter screen, and the evaporator, the moisture absorption and dehumidification device, the condenser, the drying cylinder, and the filter screen are arranged in sequence along the circulation path of the drying air.

9. A garment processing device, characterized in that, include: The drying system as described in any one of claims 1 to 8.

10. The garment processing equipment according to claim 11, characterized in that, The clothing processing equipment includes dryers and washing and drying combos.

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