A drying module and a laundry treating apparatus

Abstract

The application is suitable for the technical field of household appliances, and provides a drying module and a clothes processing device. The drying module comprises a main drying air duct and a moisture absorption and removal assembly arranged in the main drying air duct and used as a drying heat source. The moisture absorption and removal assembly is used as the drying heat source in the main drying air duct, so that the condenser of an additional heat pump system in the main drying air duct is saved, the structural complexity and cost of the clothes processing device are simplified, the moisture absorption and removal assembly absorbs water vapor in air in the main drying air duct, the dehumidification efficiency in the main drying air duct is improved, the released adsorption heat in the moisture absorption process is used for heating the air in the main drying air duct, the air entering the drum is kept in a suitable temperature range, a complicated temperature control structure is not needed, the structure is simplified and the cost is reduced, and low temperature and high drying efficiency are maintained.

Description

Technical Field

[0001] This application relates to the field of household appliance technology, and provides a drying module and a clothing processing device. Background Technology

[0002] Currently, there are two main types of technologies used for drying clothes. One is the direct-vent type, which uses a heating device to raise the temperature of the air inside the drum. The hot air carries away the moisture from the clothes, forming humid air. The humid air is then directly discharged to the outside environment through an exhaust pipe. The other is the condensing type, which delivers high-temperature, low-humidity hot air into the drum to evaporate the moisture from the clothes and reduce their moisture content. The humid air discharged after passing through the drum is first cooled and condensed, then heated up and sent back into the drum.

[0003] The problem with the two technologies mentioned above is that the temperature of the air entering the drum is relatively high, which can cause significant damage to clothing. Summary of the Invention

[0004] The purpose of this application is to provide a clothing processing device that aims to solve the technical problems of high inlet temperature and damage to clothing in existing drying equipment.

[0005] The embodiments of this application are implemented as follows: a drying module includes a main drying air duct and a moisture absorption and dehumidification component disposed in the main drying air duct, wherein the moisture absorption and dehumidification component is used as a drying heat source.

[0006] In one embodiment, a first heat exchanger is also included, disposed within the main drying duct and located upstream of the moisture absorption and desiccation assembly.

[0007] In one embodiment, the system further includes a regeneration duct and a second heat exchanger. Another portion of the moisture absorption and desiccation assembly is disposed within the regeneration duct, and the second heat exchanger is disposed within the regeneration duct and located upstream of the other portion of the moisture absorption and desiccation assembly.

[0008] In one embodiment, the first heat exchanger includes a first evaporator, and the second heat exchanger includes a condenser; the drying module further includes a compressor and a throttling device, and the compressor, the condenser, the throttling device, and the first evaporator are connected in sequence along the refrigerant flow direction.

[0009] In one embodiment, the drying module further includes a control system for controlling the rotation of the moisture absorption and desiccation component; wherein the control system is configured to control the rotation speed of the moisture absorption and desiccation component at least based on the inlet temperature, or the control system is configured to control the rotation speed of the moisture absorption and desiccation component at least based on the ambient temperature.

[0010] In one embodiment, the regeneration air duct is a closed-loop air duct, and the drying module further includes a third heat exchanger, which is disposed in the regeneration air duct and located downstream of the moisture absorption and desiccation component.

[0011] In one embodiment, the third heat exchanger includes a second evaporator; the second evaporator is connected in series between the first evaporator and the throttling device or between the first evaporator and the compressor, or the second evaporator is connected in parallel with the first evaporator.

[0012] In one embodiment, the first evaporator and the second evaporator are connected in parallel; a first throttling device is provided between the condenser and the first evaporator, and a second throttling device is provided between the condenser and the second evaporator.

[0013] In one embodiment, the drying module further includes a control system;

[0014] The first throttling device includes a first electronic expansion valve, and the control system is connected to the first electronic expansion valve and is used to control the opening degree of the first electronic expansion valve; and / or, the second throttling device includes a second electronic expansion valve, and the control system is connected to the second electronic expansion valve and is used to control the opening degree of the second electronic expansion valve.

[0015] In one embodiment, the first throttling device includes a first capillary sprue, and the second throttling device includes a second capillary sprue; the inner diameters of the first capillary sprue and the second capillary sprue are not equal, and / or the lengths of the first capillary sprue and the second capillary sprue are not equal.

[0016] In one embodiment, the drying module further includes a second fan disposed within the regeneration air duct; and / or, the drying module further includes a first fan disposed within the main drying air duct.

[0017] In one embodiment, the drying module further includes a preheating element, which is at least partially disposed within the main drying air duct and located downstream of the moisture absorption and desiccation assembly.

[0018] Another objective of this application is to provide a garment processing device, which includes:

[0019] case;

[0020] A drying module as described in the above embodiments is disposed within the housing; and

[0021] A roller disposed within the housing;

[0022] The main drying air duct is connected to the clothing processing space inside the drum.

[0023] The drying module and clothing processing equipment provided in this application have the following advantages:

[0024] The drying module and clothing processing equipment provided in this application include a main drying air duct and a moisture absorption and dehumidification component disposed within the main drying air duct. The moisture absorption and dehumidification component serves as a drying heat source. Using the moisture absorption and dehumidification component as the drying heat source saves on the condenser of the heat pump system, simplifying the structural complexity and cost of the clothing processing equipment. The moisture absorption and dehumidification component can simultaneously adsorb water vapor from the air within the main drying air duct, further improving the dehumidification efficiency within the main drying air duct. The adsorption heat released during the moisture absorption process is used to heat the air within the main drying air duct, maintaining the air entering the drum within a suitable temperature range, eliminating the need for complex temperature control structures. Overall, this clothing processing equipment features a simplified structure, reduced cost, and maintains low-temperature and high-efficiency drying of clothes, resulting in a good user experience. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of a garment processing device provided in one embodiment of this application;

[0027] Figure 2 This is a schematic diagram of a garment processing device provided in another embodiment of this application;

[0028] Figure 3 This is a schematic diagram of a garment processing device provided in yet another embodiment of this application;

[0029] Figure 4 This is a schematic diagram of a garment processing device provided in another embodiment of this application;

[0030] Figure 5 This is a schematic diagram of the control relationship of the clothing processing equipment provided in the embodiments of this application;

[0031] Figure 6 This is a schematic diagram of the moisture-absorbing turntable in the clothing processing device provided in this application embodiment.

[0032] The markings in the diagram mean:

[0033] 200 - Garment processing equipment;

[0034] 1-Drum, 10-Clothing handling space, 11-Air inlet, 12-Air outlet;

[0035] 100-Drying Module

[0036] 2-Main drying air duct;

[0037] 31-First heat exchanger, 33-First fan, 34-Third heat exchanger, 35-Second heat exchanger, 36-Second fan;

[0038] 4-Regenerative air duct;

[0039] 6-Heat pump system, 60-Compressor, 61-First evaporator, 62-Second evaporator, 63-Condenser, 64-Throttling device, 641-First throttling device, 642-Second throttling device;

[0040] 7-Moisture absorption and desiccation assembly, 71-Moisture absorption disc, 711-Moisture absorption section, 712-Desorption section, 72-First driving component;

[0041] 81-Preheating component, 82-First temperature measuring component, 83-Second temperature measuring component;

[0042] 9-Control system. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0044] It should be noted that when a component is referred to as "fixed to" or "set on" another component, it can be directly or indirectly fixed to or set on that other component. When a component is referred to as "connected to" another component, it can be directly or indirectly connected to that other component. The terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the purpose of description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this patent. The terms "first" and "second" are used only for the purpose of description and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. "A plurality" means two or more, unless otherwise explicitly specified.

[0045] To illustrate the technical solutions described in this application, the following detailed description is provided in conjunction with specific drawings and embodiments.

[0046] Please see Figure 1 and Figure 2 As shown, this application provides a clothing processing device 200, which includes a housing (not shown), a drum 1, and a drying module 100. The housing is a three-dimensional hollow structure that can be opened and closed on at least one side. The drum 1 is rotatably disposed inside the housing and has an air inlet 11, a clothing processing space 10, and an air outlet 12 connected in sequence. The drying module 100 is disposed inside the housing and outside the drum 1, and is used to provide a circulating medium for drying clothes into the drum 1 through the air inlet 11, and to dehumidify the air discharged from the air outlet 12. The dehumidified circulating medium re-enters the drum 1 through the air inlet 11, thus performing circulating dehumidification.

[0047] Please refer to details. Figure 1 and Figure 2 As shown, the drying module 100 includes a main drying air duct 2. Specifically, please refer to... Figures 1 to 4 As shown, the air outlet 12 and air inlet 11 of the drum 1 are connected by the main drying air duct 2.

[0048] The circulating medium mentioned above can include various gases and water vapor, and may also include mist droplets. For practical applications, it will be simplified to air, i.e., air containing water vapor, for the following explanation.

[0049] In the embodiments of this application, please refer to Figures 1 to 4 As shown, the drying module 100 includes a moisture absorption and desiccation component 7 disposed within the main drying duct 2. The moisture absorption and desiccation component 7 serves as a drying heat source. Thus, the moisture absorption and desiccation component 7 can provide high-temperature air within the main drying duct 2 and the drum 1.

[0050] In this embodiment, the moisture absorption and dehumidification component 7 is used as the drying heat source in the main drying air duct 2, which can reduce both the absolute humidity and the relative humidity of the air, thereby providing high temperature and low humidity (low relative humidity and low absolute humidity) air in the drum 1, and significantly improving the dehumidification efficiency.

[0051] In addition, by using the moisture absorption and dehumidification component 7 as the drying heat source, a condenser can be omitted in the main drying air duct 2; the adsorption heat released during the moisture absorption process of the moisture absorption and dehumidification component 7 is used to heat the air in the main drying air duct 2, so that the circulating air entering the drum 1 can be kept within a suitable temperature range without the need for a complex temperature control structure.

[0052] Overall, the garment processing equipment 200 has a simplified structure, reduced cost, and can dry clothes at low temperature and high efficiency, providing a good user experience.

[0053] Please see Figures 1 to 4As shown, in one embodiment, the drying module 100 further includes a first heat exchanger 31. The first heat exchanger 31 is disposed within the main drying air duct 2 and is located upstream of the moisture absorption and desiccation assembly 7.

[0054] In one embodiment, a first heat exchanger 31 is used to lower the temperature of the air around it to condense water vapor in the air within the main drying duct 2. Then, a moisture absorption and desiccation assembly 7 is used to heat the air within the main drying duct 2 to increase the temperature of the air entering the drum 1.

[0055] In the embodiments of this application, the moisture absorption and dehumidification assembly 7 includes a moisture absorption section 711 and a desorption section 712, wherein the moisture absorption section 711 is located in the main drying air duct 2 and is used to absorb water in the air and heat the air.

[0056] The air flowing out of the drum 1 carries a large amount of water vapor. After passing through the first heat exchanger 31, some of the water vapor is removed as condensate due to the decrease in air temperature, resulting in a decrease in absolute humidity and an increase in relative humidity. After passing through the moisture absorption and dehumidification component 7, the air temperature increases and the relative humidity decreases, thus effectively removing water from the clothes when the air re-enters the drum 1.

[0057] Absolute humidity refers to the mass of water vapor contained in a unit volume of air, and it directly reflects the actual content of water vapor in the air.

[0058] Relative humidity: refers to the percentage of the actual water vapor content (absolute humidity) in the air compared to the saturated water vapor content at the same temperature. It is a relative concept used to describe the degree to which the water vapor content in the air approaches saturation.

[0059] When absolute humidity remains constant, a decrease in temperature will cause relative humidity to increase, potentially even reaching water vapor saturation and causing condensation. Conversely, when absolute humidity remains constant, an increase in temperature will cause relative humidity to decrease, increasing the degree of unsaturation of water vapor in the air.

[0060] In this embodiment, the moisture absorption and dehumidification component 7 includes a moisture absorption section 711 and a desorption section 712. The moisture absorption section 711 is used to absorb water in the air and heat the air. The advantages of this configuration are: on the one hand, the moisture absorption section 711 can absorb water vapor in the air, and the absolute humidity of the air is further reduced after passing through the moisture absorption section 711; on the other hand, during the process of absorbing water, the kinetic energy of water molecules is converted into internal energy and heat is released. Therefore, after the air passes through the moisture absorption section 711 of the moisture absorption and dehumidification component 7, the temperature can be increased and the relative humidity can be reduced.

[0061] The heat of adsorption in the moisture-absorbing section 711 is related to its material properties, micropore size, and pressure in the main drying duct 2. Therefore, in this garment processing equipment 200, when the material properties, micropore size, and pressure in the circulating duct of the moisture-absorbing and desiccant component 7 are constant, the heat of adsorption released by the moisture-absorbing section 711 is constant, and thus the temperature of the air entering the drum 1 can be maintained within a certain range.

[0062] In some embodiments, such as Figure 6 As shown, the moisture absorption and desiccation assembly 7 includes a moisture absorption disc 71, which comprises the aforementioned moisture absorption section 711 and desorption section 712. The moisture absorption disc 71 is configured to be partially located within the main drying air duct 2 and is rotatably mounted. The moisture absorption section 711 and desorption section 712 do not refer to two fixed parts on the moisture absorption disc 71. The moisture absorption section 711 refers to the part of the moisture absorption disc 71 located within the main drying air duct 2 at any given time that adsorbs water from the air. After the moisture absorption section 711 rotates, it is located outside the main drying air duct 2 and undergoes a process of desorption of water molecules, which is the regeneration process of the moisture absorption section 711. Therefore, the desorption section 712 refers to the part of the moisture absorption disc 71 where the water adsorbed on it is re-desorbed and becomes dry. As the moisture absorption disc 71 rotates, the moisture absorption section 711 and the desorption section 712 continuously switch between each other.

[0063] In some embodiments, the moisture-absorbing disc 71 can be a honeycomb or corrugated disc carrying a desiccant, capable of adsorbing and desorbing absorbed water to achieve repeated desorption and regeneration. In some embodiments, the moisture-absorbing disc 71 specifically includes an inorganic / organic fiber carrier, such as ceramics, glass fibers, MOFs (Metal-Organic Frameworks), COFs (Covalent-Organic Frameworks), cordierite, etc., with a desiccant coated on the fiber carrier. The desiccant is uniformly distributed between the fibers and on the surface of the fiber carrier to achieve moisture adsorption. The desiccant can be, for example, zeolite, modified / synthetic zeolite, molecular sieves (including but not limited to single-crystal molecular sieves 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 moisture-absorbing properties.

[0064] like Figures 1 to 4 As shown, in one embodiment, the drying module 100 further includes a regeneration air duct 4, and another part of the moisture absorption and dehumidification component 7, namely the desorption section 712, is disposed in the regeneration air duct 4. That is, both ends of the regeneration air duct 4 are connected to the desorption section 712, and the air in the regeneration air duct 4 can pass through the desorption section 712. The air flowing in the regeneration air duct 4 can desorb the water molecules adsorbed in the desorption section 712.

[0065] like Figures 1 to 4 As shown, in one embodiment, the drying module 100 further includes a second heat exchanger 35, which is disposed in the regeneration air duct 4 and located upstream of the desorption section 712.

[0066] The second heat exchanger 35 is used to heat the air inside the regeneration duct 4. The high-temperature air provides energy for water molecules to re-desorb from the microporous structure of the moisture-absorbing disc 71 as it passes through the desorption section 712.

[0067] In one embodiment, please refer to Figures 1 to 4 As shown, the drying module 100 also includes a first fan 33, which is at least partially located in the main drying air duct 2 to provide airflow power within the main drying air duct 2 and maintain airflow through the drying module 100 and the drum 1 at a sufficient and stable speed.

[0068] The position of the drum 1 within the main drying air duct 2 can be arranged according to specific design requirements and the adaptability of the space within the casing. For example, the first fan 33 can be located between the air outlet 12 of the drum 1 and the first heat exchanger 31, or it can be located between the first heat exchanger 31 and the moisture absorption and desiccation assembly 7, or, as... Figures 1 to 3 As shown, it can be set between the moisture absorption and dehumidification component 7 and the air inlet 11 of the roller 1.

[0069] Furthermore, in some cases, the first fan 33 may include multiple fans, which may be arranged in the same location, for example, sequentially arranged between the first heat exchanger 31 and the moisture absorption and desiccation assembly 7 along the airflow direction; multiple fans may also be arranged in different locations, for example, one fan may be arranged between the air outlet 12 of the drum 1 and the first heat exchanger 31, and another fan may be arranged between the moisture absorption and desiccation assembly 7 and the air inlet 11 of the drum 1. Further combinations and variations of the positions of multiple fans will not be elaborated upon here.

[0070] In one embodiment, based on the application scenario of the garment processing device 200, such as a home environment, the air inlet 11 of the roller 1 is located on the side facing the user, that is, the front end of the roller 1, and the air outlet 12 of the roller 1 is located on the side away from the user, that is, the rear end. The space between the rear end of the roller 1 and the housing can accommodate the arrangement of the first fan 33. Therefore, in a specific embodiment, please refer to... Figures 1 to 3 As shown, the first fan 33 is located between the moisture absorption and dehumidification assembly 7 and the air inlet 11 of the drum 1.

[0071] In other embodiments, the air inlet 11 of the drum 1 is located on the side facing the user, and the first fan 33 can be disposed between the air inlet 11 of the drum 1 and the first heat exchanger 31.

[0072] In other embodiments, the air inlet 11 of the roller 1 is located on the side away from the user, and the first fan 33 can be set between the air inlet 11 of the roller 1 and the first heat exchanger 31, or it can be set between the moisture absorption and dehumidification assembly 7 and the air inlet 11 of the roller 1.

[0073] Please see Figures 1 to 3 As shown, in one embodiment, the regeneration air duct 4 is a closed-loop air duct, and the drying module 100 also includes a third heat exchanger 34, which is disposed in the regeneration air duct 4 and located downstream of the desorption section 712.

[0074] In one embodiment, a third heat exchanger 34 is used to condense water vapor in the circulating medium within the regeneration duct 4, thereby reducing the absolute humidity of the air within the regeneration duct 4. The closed-loop regeneration duct 4 has a wider range of applications and avoids the discharge of high-temperature energy, which is beneficial for achieving internal energy circulation and reducing energy consumption.

[0075] Please see Figures 1 to 4 As shown, in one embodiment, the drying module 100 further includes a second fan 36, which is at least partially disposed within the regeneration duct 4 and is used to provide power for the flow of air within the regeneration duct 4.

[0076] In one embodiment, the second fan 36 is located downstream of the third heat exchanger 34 and upstream of the second heat exchanger 35. The purpose of this arrangement is that the air temperature and absolute humidity are lower after passing through the third heat exchanger 34. At this time, the second fan 36 is in a low-temperature and low-humidity (low absolute humidity) operating environment, which helps to ensure the lifespan of the second fan 36.

[0077] Please see Figure 4 As shown, in one embodiment, the regeneration duct 4 is an open duct. An open duct, as used here, means that the regeneration duct 4 is connected to the space outside the housing. Air enters the regeneration duct 4 from outside the housing and is heated, then passes through the desorption section 712 and is discharged outside the housing.

[0078] In this embodiment, the second fan 36 can be optionally located upstream of the second heat exchanger 35. This also avoids the adverse effects of high temperature on the second fan 36.

[0079] Please see Figures 1 to 4 As shown, in one embodiment, the first heat exchanger 31 includes a first evaporator 61, and the second heat exchanger 35 includes a condenser 63; the drying module 100 also includes a compressor 60 and a throttling device 64, and the compressor 60, condenser 63, throttling device 64 and first evaporator 61 are connected in sequence along the refrigerant flow direction.

[0080] The heat pump system 6 consists of at least a compressor 60, a condenser 63, a throttling device 64, and a first evaporator 61. It is understood that the compressor 60 and the throttling device 64 are located in the space outside the main drying air duct 2 and the regeneration air duct 4.

[0081] The refrigerants mentioned include hydrofluorocarbons (HFCs), chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), or natural refrigerants (such as ammonia, carbon dioxide, hydrocarbons, etc.).

[0082] Please see Figures 1 to 3 As shown, in one embodiment, the third heat exchanger 34 includes a second evaporator 62; the second evaporator 62 is connected in series between the first evaporator 61 and the throttling device 64 or between the first evaporator 61 and the compressor 60, or the second evaporator 62 is connected in parallel with the first evaporator 61.

[0083] In other words, the heat pump system 6 also includes a second evaporator 62. The condenser 63 and the second evaporator 62 of the heat pump system 6 serve as the heat source and cold source within the regeneration duct 4, respectively, realizing the internal circulation of heat during the regeneration process.

[0084] In other words, the condenser 63 of the heat pump system 6 is used in the regeneration air duct 4 instead of the main drying air duct 2. This can ensure the temperature range in the main drying air duct 2 and also eliminate the need for heating components in the regeneration air duct 4. For example, there is no need to install electric heating tubes in the regeneration air duct 4.

[0085] In one embodiment, such as Figure 1 As shown, the first evaporator 61 and the second evaporator 62 are connected in parallel. A first throttling device 641 is provided between the condenser 63 and the first evaporator 61, and a second throttling device 642 is provided between the condenser 63 and the second evaporator 62. The refrigerant flowing out of the condenser 63 is divided into two paths through a three-way connector (not shown), flowing to the first throttling device 641 and the second throttling device 642 respectively.

[0086] In one embodiment, the first throttling device 641 includes a first capillary filament, and the second throttling device 642 includes a second capillary filament.

[0087] The refrigerant flowing out of condenser 63 is in a high-pressure liquid state. After throttling, the pressure decreases, allowing the refrigerant to evaporate and transform at low pressure. The length and inner diameter of the first and second capillary drain pipes determine the resistance to refrigerant flow, which in turn determines the flow rate of refrigerant entering the first and second evaporators 61 and 62, as well as the pressure within them. Consequently, the refrigeration temperatures of the first and second evaporators 61 and 62 can be determined.

[0088] In one optional embodiment, the inner diameters of the first capillary filament and the second capillary filament are not equal, and / or the lengths of the first capillary filament and the second capillary filament are not equal. Based on the different cooling requirements of the first evaporator 61 and the second evaporator 62, the capillary filaments with different inner diameters and / or lengths achieve the adjustment of the refrigerant evaporation temperature.

[0089] In one alternative embodiment, the inner diameters of the first capillary tube and the second capillary tube are equal, and the lengths of the first capillary tube and the second capillary tube are equal, so that the evaporation temperatures of the first evaporator 61 and the second evaporator 62 are the same.

[0090] In one embodiment, such as Figure 5 As shown, the garment processing device 200 also includes a control system 9. In one embodiment, the first throttling device 641 includes a first electronic expansion valve, and the control system 9 is connected to the first electronic expansion valve to control the opening degree of the first electronic expansion valve. And / or, the second throttling device 642 includes a second electronic expansion valve, and the control system 9 is connected to the second electronic expansion valve to control the opening degree of the second electronic expansion valve.

[0091] In one optional embodiment, the first throttling device 641 includes a first electronic expansion valve, the second throttling device 642 includes a second electronic expansion valve, and the control system 9 is used to control the opening degree of the first electronic expansion valve and the second electronic expansion valve.

[0092] The purpose of this setting is that, during the actual operation of the clothing processing equipment 200, the cooling temperature of the first evaporator 61 and the second evaporator 62 can be adjusted by controlling the first throttling device 641 and the second throttling device 642, based on the external environment, internal environment, or specific needs.

[0093] For example, when the ambient temperature is low, and during the initial operation of the garment processing equipment 200, the air temperature inside the drum 1 is low and the relative humidity is high, resulting in a low ability for the air to remove moisture from the clothes as it passes through the drum 1. In this situation, the control system 9 can increase the opening of the first electronic expansion valve, thereby increasing the refrigerant flow rate into the first evaporator 61. More refrigerant enters the first evaporator 61 and absorbs heat and vaporizes within it. Due to the increased refrigerant flow rate, the pressure inside the first evaporator 61 rises. Based on the pressure-temperature characteristics of the refrigerant, this leads to an increase in the refrigerant's evaporation temperature. This, in turn, increases the cooling temperature of the first evaporator 61 and raises the temperature of the air entering the drum 1. Thus, rapid heating of the air inside the drum 1 is achieved, improving dehumidification efficiency.

[0094] As the garment processing equipment 200 operates, the air temperature inside the drum 1 gradually rises. When the temperature inside the drum 1 is high, the opening of the first electronic expansion valve can be reduced by the control system 9, thereby reducing the refrigerant flow into the first evaporator 61. Less refrigerant enters the first evaporator 61 and absorbs heat and vaporizes there. Due to the reduced refrigerant flow, the pressure inside the first evaporator 61 decreases. Based on the pressure-temperature characteristics of the refrigerant, this leads to a decrease in the refrigerant's evaporation temperature. This lowers the evaporation temperature of the first evaporator 61, ensuring that the temperature of the air entering the drum 1 remains within a certain range, and enabling efficient condensation and improved dehumidification efficiency.

[0095] Conversely, when the ambient temperature is high, the air entering the drum 1 already has a certain temperature and low relative humidity. At this time, the opening of the first electronic expansion valve can be reduced by the control system 9 to lower the pressure inside the first evaporator 61 and reduce the cooling temperature of the first evaporator 61, so as to quickly condense the air, improve the dehumidification efficiency, and ensure that the temperature of the air entering the drum 1 is kept within a certain range.

[0096] Similarly, when the ambient temperature is low, and / or during the initial operation of the garment processing equipment 200, the air temperature and relative humidity in the regeneration duct 4 and upstream of the desorption section 712 are low, resulting in a low desorption capacity of the air passing through the desorption section 712 for water molecules. In this case, the control system 9 can increase the opening of the second electronic expansion valve, thereby increasing the pressure within the second evaporator 62, raising the evaporation temperature of the second evaporator 62, and increasing the temperature of the air passing through the desorption section 712. This achieves rapid heating of the air in the regeneration duct 4 and upstream of the desorption section 712, thus improving the desorption efficiency.

[0097] As the garment processing equipment 200 operates, the air temperature inside the regeneration duct 4 and upstream of the desorption section 712 gradually rises. When the temperature inside the regeneration duct 4 and upstream of the desorption section 712 is high, the opening of the second electronic expansion valve can be reduced by the control system 9 to lower the pressure inside the second evaporator 62 and reduce the evaporation temperature of the second evaporator 62, thereby efficiently condensing the air downstream of the desorption section 712 and improving dehumidification efficiency.

[0098] Conversely, when the ambient temperature is high, the air in the regeneration duct 4 and the drum 1 upstream of the desorption section 712 already has a certain temperature and low relative humidity. At this time, the opening of the second electronic expansion valve can be reduced by the control system 9 to reduce the pressure in the second evaporator 62 and reduce the evaporation temperature of the second evaporator 62, so as to efficiently condense the air downstream of the desorption section 712 and improve the dehumidification efficiency.

[0099] In one embodiment, the control system 9 is configured to control at least one of the first electronic expansion valve and the second electronic expansion valve after the drum 1 is started. Optionally, the control system 9 is configured to control at least one of the first electronic expansion valve and the second electronic expansion valve at at least one preset time during the operation of the drum 1. Specifically, for example, the control system 9 is configured to adjust at least one of the first electronic expansion valve and the second electronic expansion valve when the drum 1 is started, and to readjust at least one of the first electronic expansion valve and the second electronic expansion valve at at least one preset time after the drum 1 has been running.

[0100] In one embodiment, the control system 9 is configured to control the first electronic expansion valve based on the temperature inside the drum 1 and / or the ambient temperature. Optionally, the control system 9 is configured to control the first electronic expansion valve when the temperature inside the drum 1 and / or the ambient temperature reaches one or more first preset temperature values.

[0101] In one embodiment, the control system 9 is configured to control the second electronic expansion valve based on the temperature inside the regeneration duct 4 and upstream of the desorption section 712 and / or the ambient temperature. Optionally, the control system 9 is configured to control the second electronic expansion valve when the temperature inside the regeneration duct 4 and upstream of the desorption section 712 reaches one or more second preset temperature values.

[0102] In addition, in one embodiment, the control system 9 can combine multiple factors, including the preset time during the operation of the drum 1, the temperature inside the drum 1, the ambient temperature, and the temperature inside the regeneration air duct 4 and upstream of the desorption section 712, to jointly control the first electronic expansion valve and the second electronic expansion valve.

[0103] The garment processing equipment 200 may also include corresponding temperature measuring elements. For example, a first temperature measuring element 82 is disposed inside the housing on the side of the air inlet 11 of the roller 1, and is used to measure the temperature of the air entering the roller 1 (inlet temperature). For example, a second temperature measuring element 83 is disposed inside the housing on the air inlet side of the desorption section 712, and is used to measure the temperature of the air passing through the desorption section 712. Furthermore, a third temperature measuring element (not shown) is disposed on the housing and is used to measure the ambient temperature. Each temperature measuring element is connected to the control system 9 to provide corresponding temperature information to the control system 9.

[0104] The control system 9 is connected to both the first fan 33 and the second fan 36. The control system 9 is used to control the start and stop of the first fan 33 and the second fan 36.

[0105] In one optional embodiment, the control system 9 is further configured to control the rotational speed of at least one of the first fan 33 and the second fan 36, so as to adjust the airflow speed within the main drying duct 2 and the regeneration duct 4 accordingly. The purpose of this configuration is to allow for adjustment of the airflow speed within the main drying duct 2 and the regeneration duct 4 based on external or internal environmental conditions or specific requirements.

[0106] In an optional embodiment, the control system 9 is also used to control the rotational speed of the first drive member 72 of the moisture absorption and desiccation assembly 7, so as to control the rotational speed of the moisture absorption turntable 71. The purpose of this arrangement is that the main drying air duct 2 and the regeneration air duct 4 are two air ducts with independent functions and independent operation. However, based on the rotation of the moisture absorption turntable 71, when the desorption section 712 is transferred from the regeneration air duct 4 to the main drying air duct 2, a portion of the high-temperature air located in the desorption section 712 will be simultaneously rotated into the main drying air duct 2. This is beneficial to increase the temperature of the air downstream of the moisture absorption section 711 that enters the drum 1.

[0107] In one embodiment, when the ambient temperature is low, the temperature inside the roller 1 is low; or, when the garment processing equipment 200 is initially running, the control system 9 is used to control the moisture-absorbing turntable 71 to rotate at a relatively high speed via the first drive member 72; as the garment processing equipment 200 runs, the control system 9 is used to reduce the rotation speed of the moisture-absorbing turntable 71.

[0108] In one embodiment, the first heat exchanger 31 and / or the third heat exchanger 34 include a cryogenic heat exchanger, for example, a heat exchanger internally carrying a cryogenic cooling medium (such as cryogenic water or cryogenic air). The second heat exchanger 35 includes an electric heating element.

[0109] Please see Figure 3 As shown, in one embodiment, the drying module 100 further includes a preheating element 81, which is disposed within the main drying air duct 2 and located between the moisture absorption section 711 and the air inlet 11. The preheating element 81 is connected to the control system 9, which controls the start and stop of the preheating element 81. Optionally, the control system 9 can also control one or more different operating temperatures of the preheating element 81.

[0110] The preheating element 81 is used to further heat the air downstream of the moisture absorption section 711 to ensure that the air entering the drum 1 can quickly reach the required temperature range, reduce the relative humidity of the air entering the drum 1, improve the efficiency of air desorption of moisture from clothes, and reduce drying time.

[0111] For example, when the ambient temperature is low, or during the initial operation of drum 1, or when the temperature inside the main drying duct 2 is low, the relative humidity of the air entering drum 1 is high, resulting in low efficiency in removing moisture from clothes. In this case, the preheating element 81 can be activated and operated at its working temperature to quickly raise the temperature of the air entering drum 1, thereby reducing drying time and increasing the drying rate. As drum 1 operates, the temperature inside the main drying duct 2 gradually rises. At this point, the preheating element 81 can be turned off, and the temperature of the air entering drum 1 is maintained by the adsorption heat of the moisture-absorbing section 711.

[0112] In one embodiment, the control system 9 is configured to control the preheating element 81 to operate for a preset time period after the drum 1 is started. For example, the preheating element 81 is configured to start operating at the same time as the drum 1 is started and stop operating after a period of time.

[0113] In one embodiment, the control system 9 is configured to activate the preheating element 81 based on the temperature inside the drum 1, and to control the preheating element 81 to operate at a predetermined temperature. For example, the control system 9 is configured to activate the preheating element 81 when the temperature inside the drum 1 is within a first preset range, and to control the preheating element 81 to operate at a predetermined temperature.

[0114] In one embodiment, the control system 9 is configured to activate the preheating element 81 based on the ambient temperature, and to control the preheating element 81 to operate at a predetermined temperature. For example, the control system 9 is configured to activate the preheating element 81 when the ambient temperature is within a second preset range, and to control the preheating element 81 to operate at a predetermined temperature.

[0115] In one embodiment, the control system 9 is configured to control the operation of the preheating element 81 and its operating temperature by combining multiple factors, including a preset time period after the drum 1 starts, the temperature inside the drum 1, and the ambient temperature.

[0116] In one embodiment, the drying module 100 includes a base structure (not shown), on which the main drying air duct 2 and the regeneration air duct 4 are both disposed. The housing may include a plurality of side plates (not shown) that are interconnected and enclosed with the base structure.

[0117] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A drying module, characterized in that, It includes a main drying air duct and a moisture absorption and dehumidification component located within the main drying air duct, the moisture absorption and dehumidification component being used as a drying heat source.

2. The drying module as described in claim 1, characterized in that, It also includes a first heat exchanger, which is located in the main drying air duct and upstream of the moisture absorption and desiccation assembly.

3. The drying module as described in claim 2, characterized in that, It also includes a regeneration air duct and a second heat exchanger. Another part of the moisture absorption and desiccation assembly is located in the regeneration air duct, and the second heat exchanger is located in the regeneration air duct and upstream of the other part of the moisture absorption and desiccation assembly.

4. The drying module as described in claim 3, characterized in that, The first heat exchanger includes a first evaporator, and the second heat exchanger includes a condenser; the drying module further includes a compressor and a throttling device, and the compressor, the condenser, the throttling device and the first evaporator are connected in sequence along the refrigerant flow direction.

5. The drying module as described in claim 3, characterized in that, The drying module further includes a control system for controlling the rotation of the moisture absorption and desiccation component; wherein the control system is configured to control the rotation speed of the moisture absorption and desiccation component at least according to the inlet temperature, or the control system is configured to control the rotation speed of the moisture absorption and desiccation component at least according to the ambient temperature.

6. The drying module as described in claim 4, characterized in that, The regeneration air duct is a closed-loop air duct, and the drying module also includes a third heat exchanger, which is located in the regeneration air duct and downstream of the moisture absorption and dehumidification component.

7. The drying module as described in claim 6, characterized in that, The third heat exchanger includes a second evaporator; the second evaporator is connected in series between the first evaporator and the throttling device or between the first evaporator and the compressor, or the second evaporator is connected in parallel with the first evaporator.

8. The drying module as described in claim 7, characterized in that, The first evaporator and the second evaporator are connected in parallel; a first throttling device is provided between the condenser and the first evaporator, and a second throttling device is provided between the condenser and the second evaporator.

9. The drying module as described in claim 8, characterized in that, The drying module also includes a control system; The first throttling device includes a first electronic expansion valve, and the control system is connected to the first electronic expansion valve. The control system is used to control the opening degree of the first electronic expansion valve. And / or, the second throttling device includes a second electronic expansion valve, the control system being connected to the second electronic expansion valve, the control system being used to control the opening degree of the second electronic expansion valve.

10. The drying module as described in claim 8, characterized in that, The first throttling device includes a first capillary sprue, and the second throttling device includes a second capillary sprue; the inner diameters of the first capillary sprue and the second capillary sprue are not equal, and / or the lengths of the first capillary sprue and the second capillary sprue are not equal.

11. The drying module as described in claim 4, characterized in that, The drying module further includes a second fan located within the regeneration air duct; and / or, the drying module further includes a first fan located within the main drying air duct.

12. The drying module as described in any one of claims 1 to 11, characterized in that, The drying module also includes a preheating component, which is at least partially located within the main drying air duct and downstream of the moisture absorption and dehumidification component.

13. A garment processing device, characterized in that, include: case; The drying module as described in any one of claims 1 to 12 is disposed within the housing; as well as A roller disposed within the housing; The main drying air duct is connected to the clothing processing space inside the drum.

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