Drying system, laundry treatment device and drying method
By introducing a second drying subsystem into the drying system, which can be started or stopped according to the needs of different drying stages, the problem of low efficiency in the existing drying system is solved, and a high-efficiency and energy-saving drying effect is achieved.
Patent Information
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- NANJING ROBOROCK INNOVATION TECH CO LTD
- Filing Date
- 2025-11-11
- Publication Date
- 2026-06-04
AI Technical Summary
Existing drying systems lack specificity for different drying stages, resulting in low drying efficiency, prolonged drying time, and high energy consumption.
A drying system is provided, comprising first and second drying subsystems. By starting or stopping the second drying subsystem at different drying stages, the first drying subsystem is assisted in drying, thereby improving efficiency and saving time.
By periodically starting or stopping the second drying subsystem, drying efficiency was improved, drying time was saved, and energy consumption was reduced when it was shut down.
Smart Images
Figure CN2025134219_04062026_PF_FP_ABST
Abstract
Description
Drying systems, garment handling equipment and drying methods Cross-reference to related applications
[0001] This disclosure claims priority to Chinese Patent Application No. 202411745486.1, filed on November 29, 2024, and Chinese Patent Application No. 202422945163.9, filed on November 29, 2024, the entire contents of which are incorporated herein by reference. Technical Field
[0002] This disclosure relates to, but is not limited to, the field of clothing processing technology, and in particular to a drying system, clothing processing equipment, and drying method. Background Technology
[0003] The drying system provides high-temperature drying air that circulates in the drying air circulation path and passes over the items to be dried (such as clothes), thereby drying the items. Summary of the Invention
[0004] This disclosure provides a drying system, clothing treatment equipment, and drying method.
[0005] In a first aspect, embodiments of this disclosure provide a drying system, including a first drying subsystem and a second drying subsystem. The first drying subsystem includes a condenser and a first evaporator disposed in a refrigerant circulation path. The second drying subsystem includes a moisture absorption and dehumidification device and a regeneration device. The first evaporator, the moisture absorption and dehumidification device, and the condenser are disposed in a drying air circulation path, and the second drying subsystem is configured to start or stop at different drying stages of the first drying subsystem.
[0006] In one implementation of this disclosure, the regeneration device includes a second evaporator, and the second evaporator and the desiccant device are disposed in the desorption air circulation path. The second evaporator is used to dehumidify the desorption air that has passed through the desiccant device.
[0007] In one implementation of this disclosure, the second evaporator and the first evaporator are connected in series in the refrigerant circulation path, and the second evaporator is located upstream of the first evaporator.
[0008] In one implementation of this disclosure, the second evaporator and the first evaporator are connected in parallel in the refrigerant circulation path, and a shut-off valve is provided on the inlet side of the second evaporator; the shut-off valve is configured to open when the second drying subsystem is started and close when the second drying subsystem is shut down.
[0009] In one implementation of this disclosure, the drying system further includes a compressor and a throttle valve, and the compressor, condenser, throttle valve, second evaporator and first evaporator are arranged sequentially along the refrigerant circulation path.
[0010] In one implementation of this disclosure, the first drying subsystem further includes a first fan, which is used to provide the circulating power of the drying air in the drying air circulation path; the second drying subsystem further includes a second fan, which is used to provide the circulating power of the desorption air in the desorption air circulation path.
[0011] In one implementation of this disclosure, the dehumidification device includes a dehumidification disc, and the regeneration device further includes a heater. The dehumidification disc is used to adsorb water vapor in the drying air circulation path, and the heater is used to desorb the water vapor adsorbed by the dehumidification disc into the desorption air circulation path.
[0012] In one implementation of this disclosure, the drying system further includes a drying cylinder for holding the object to be dried. Along the drying air circulation path, a first evaporator, a moisture absorption and dehumidification device, a condenser, and the drying cylinder are arranged in sequence.
[0013] Secondly, embodiments of this disclosure provide a garment processing apparatus, including the drying system of the first aspect.
[0014] Thirdly, embodiments of this disclosure provide a drying method for a garment processing device, the garment processing device including a drying system, the drying system including a first drying subsystem and a second drying subsystem; the drying method includes: obtaining the drying stage of the first drying subsystem; and controlling the second drying subsystem to start or stop at different drying stages based on the drying stage.
[0015] In one implementation of this disclosure, the drying stage includes at least a preheating stage and a normal stage set sequentially, and the drying method includes: when the drying stage is the preheating stage, controlling the second drying subsystem to start; when the drying stage is the normal stage, controlling the second drying subsystem to shut down.
[0016] In one implementation of this disclosure, when the temperature of the drying air outlet is lower than the preset outlet temperature, the drying stage is determined to be the preheating stage.
[0017] In one implementation of this disclosure, when the set drying time is less than the conventional drying time, the drying time of the preheating stage is extended.
[0018] In one implementation of this disclosure, the drying stage further includes a finishing stage set after the regular stage, and the drying method includes: when the drying stage is the finishing stage, controlling the second drying subsystem to start; when the finishing stage ends, controlling the second drying subsystem to shut down.
[0019] In one implementation of this disclosure, the first drying subsystem includes a compressor and a condenser, and the drying method includes: acquiring the operating parameters of the compressor or condenser; controlling the running time of the second drying subsystem based on the operating parameters; and controlling the second drying subsystem to start and stop intermittently during the running time based on the operating parameters.
[0020] In one implementation of this disclosure, the first drying subsystem includes a compressor and a condenser, and both the first and second drying subsystems include an evaporator. A throttle is provided on the inlet side of the evaporator. The drying method includes: acquiring the operating parameters of the compressor or the condenser; and controlling the throttling parameters of the throttle based on the operating parameters. Attached Figure Description
[0021] Figure 1 is one of the structural schematic diagrams of the drying system provided in the embodiments of this disclosure.
[0022] Figure 2 is a second schematic diagram of the drying system provided in the embodiments of this disclosure.
[0023] Figure 3 is a schematic diagram showing the connection between the measurement and control subsystem and the human-machine interaction subsystem in the drying system provided in the embodiments of this disclosure.
[0024] Figure 4 is a flowchart of one of the drying methods provided in the embodiments of this disclosure.
[0025] Figure 5 is a second flowchart of the drying method provided in the embodiments of this disclosure.
[0026] Figure 6 is a flowchart of the drying method provided in the embodiments of this disclosure.
[0027] Reference numerals: 100-First drying subsystem; 110-Compressor; 120-Condenser; 130-First evaporator; 140-First fan; 200-Second drying subsystem; 210-Dehumidification device; 211-Dehumidification turntable; 212-Heater; 220-Second evaporator; 230-Second fan; 300-Stop valve; 400-Throttle valve; 500-Drying drum; 600-Measurement and control subsystem; 700-Human-machine interface subsystem; L10-Refrigerant circulation path; L20-Drying air circulation path; L30-Desorption air circulation path. Detailed Implementation
[0028] To make the objectives, technical solutions, and advantages of the embodiments of this disclosure clearer, the specific technical solutions of this disclosure will be further described in detail below with reference to the accompanying drawings of the embodiments of this disclosure. The following embodiments are used to illustrate this disclosure, but are not intended to limit the scope of this disclosure.
[0029] In the embodiments of this disclosure, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this disclosure, unless otherwise stated, "a plurality of" means two or more.
[0030] Furthermore, in the embodiments of this disclosure, directional terms such as "up," "down," "left," and "right" are defined relative to the orientation in which the components are schematically placed in the accompanying drawings. It should be understood that these directional terms are relative concepts, used for relative description and clarification, and can change accordingly depending on the orientation in which the components are placed in the accompanying drawings.
[0031] In the embodiments disclosed herein, unless otherwise expressly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.
[0032] In embodiments of this disclosure, the terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0033] In this disclosure, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or illustration. Any embodiment or design described as "exemplary" or "for example" in this disclosure should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of terms such as "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.
[0034] The temperature and humidity of the material to be dried vary at different stages of drying, and the lack of targeted drying system results in low drying efficiency.
[0035] This disclosure provides a drying system that can be used in clothing processing equipment, such as a dryer or washer-dryer combo. The drying system provides high-temperature drying air that circulates in a drying air circulation path and passes over the items to be dried (e.g., clothing), thereby drying the items.
[0036] It is understandable that the temperature and humidity of the material to be dried are different in different stages of drying. For example, the temperature of the material to be dried is lower in the preheating stage, and the humidity and dew point temperature of the material to be dried are reduced in the final stage, which will lead to a decrease in drying efficiency and a longer drying time.
[0037] To address the aforementioned technical problems, the embodiments of this disclosure provide a second drying subsystem in an energy-efficient drying system configured to start or stop at different drying stages of the first drying subsystem. The first drying subsystem can be used to continuously dry the object to be dried. At different drying stages, the second drying subsystem can be started or stopped in stages. Starting the second drying subsystem assists in the drying process, thereby improving drying efficiency and saving drying time. Stopping the second drying subsystem reduces energy consumption. A detailed description follows with reference to the accompanying drawings.
[0038] Referring to Figures 1 and 2, the drying system of this embodiment includes a first drying subsystem 100 and a second drying subsystem 200. The first drying subsystem 100 includes a condenser 120 and a first evaporator 130 disposed in the refrigerant circulation path L10. The second drying subsystem 200 includes a moisture absorption and dehumidification device 210 and a regeneration device (the regeneration device may include a second evaporator 220). The first evaporator 130, the moisture absorption and dehumidification device 210 and the condenser 120 are disposed in the drying air circulation path L20, and the second drying subsystem 200 is configured to start or stop at different drying stages of the first drying subsystem 100.
[0039] The drying system provided in this embodiment can be used to dry clothes, with both the first drying subsystem 100 and the second drying subsystem 200. The first drying subsystem includes a condenser 120 and a first evaporator 130 disposed in the refrigerant circulation path L10. The refrigerant condenses and releases heat in the condenser 120, which can be used to heat the drying air; the refrigerant evaporates and absorbs heat in the first evaporator 130, which can be used to condense and remove water vapor from the drying air. The second drying subsystem includes a moisture-absorbing and dehumidifying device 210 and a regeneration device. The moisture-absorbing and dehumidifying device 210 can absorb water vapor, while the regeneration device removes water vapor to regenerate the moisture-absorbing and dehumidifying device 210. The first evaporator 130, the dehumidifier 210, and the condenser 120 are arranged in the drying air circulation path L20. Drying air circulates through this path, absorbing moisture from the material to be dried. The first evaporator 130 condenses and removes moisture from the drying air, while the dehumidifier 210 further adsorbs moisture, resulting in secondary drying. The condenser 120 heats the drying air, generating high-temperature, high-dryness drying air to facilitate drying the material. The second drying subsystem 200 is configured to start or stop at different drying stages of the first drying subsystem 100. The first drying subsystem 100 can continuously dry the material, while the second drying subsystem can be started or stopped intermittently at different drying stages. Starting the second drying subsystem 200 assists in drying, improving efficiency and saving time. Stopping the second drying subsystem 200 reduces energy consumption.
[0040] Understandably, the refrigerant circulation path L10 is also equipped with a compressor 110 and a throttle 400. The drying air circulation path L20 is also equipped with a first fan 140, which is used to provide the circulation power for the drying air in the drying air circulation path L20.
[0041] In this embodiment of the present disclosure, the first drying subsystem 100 includes a compressor 110, which can be a piston type, scroll type, or screw type, etc. The compressor 110 can drive the refrigerant to flow along the refrigerant circulation path L10. When the refrigerant passes through the condenser 120, it releases heat, and the condenser 120 can use the heat released by the refrigerant to heat the drying air in the drying air circulation path L20. When the refrigerant passes through the first evaporator 130, it absorbs heat, and the first evaporator 130 can use the heat absorbed by the refrigerant to cool the drying air, so that the water vapor in the drying air is condensed and removed.
[0042] In this embodiment, the second drying subsystem 200 includes a moisture absorption and dehumidification device 210. The device 210 adsorbs moisture from the drying air using materials such as zeolite, silica gel, and activated carbon, thereby drying the air a second time into extremely low-humidity air. This allows the drying air to carry away more moisture as it passes over the object to be dried, accelerating the drying process. Furthermore, the adsorption heat generated during the adsorption process of the device 210 can be used to heat the drying air, improving energy utilization. A regeneration device is used to desorb the moisture absorbed by the device 210, restoring it to a low-humidity state so that it can continue to adsorb moisture from the drying air. In this embodiment, the cooperation of the first drying subsystem 100 and the second drying subsystem 200 can provide high-temperature, high-dryness drying air. The drying air passes through the drying air circulation path L20 and then through the object to be dried (the object to be dried can be placed in the drying cylinder 500 in the drying air circulation path L20). It exchanges heat and moisture with the object to be dried, raising the temperature of the object to be dried and reducing its humidity, thus becoming low-temperature, high-humidity drying air. The low-temperature, high-humidity drying air is further dehumidified by the first evaporator 130 and then by the moisture absorption and dehumidification device 210, becoming low-temperature, high-dryness drying air. The low-temperature, high-dryness drying air is then heated by the condenser 120 and becomes high-temperature, high-dryness drying air again, thus realizing the circulation of the drying air.
[0043] In this embodiment of the disclosure, the start-up of the second drying subsystem 200 means that the moisture absorption and dehumidification device 210 and the regeneration device are in working condition, and can desorb moisture in the drying air. The shutdown of the second drying subsystem 200 means that the moisture absorption and dehumidification device 210 and the regeneration device are in a closed or standby state, with no energy consumption or low energy consumption, and the second drying subsystem 200 does not participate in drying.
[0044] In this embodiment, the first drying subsystem 100 participates in the drying of the object to be dried throughout the entire process. It is understood that the humidity, temperature, and other properties of the object to be dried are different at different drying stages. The second drying subsystem 200 is activated at different drying stages of the first drying subsystem 100 to assist the first drying subsystem 100 in drying, thereby shortening the time of the corresponding drying stage and improving drying efficiency.
[0045] Referring to Figure 3, the start-up and shutdown of the second drying subsystem 200 can be controlled by the measurement and control subsystem 600. Alternatively, the drying system is also connected to a human-machine interface subsystem 700, through which the user can actively control the start-up or shutdown of the second drying subsystem 200. For example, if the user selects the energy-saving drying mode, the user can control the second drying subsystem 200 to shut down in order to save energy.
[0046] The technical solution provided in this disclosure allows both the first drying subsystem 100 and the second drying subsystem 200 to be used for drying clothes. The first drying subsystem 100 includes a compressor 110, a condenser 120, and a first evaporator 130 disposed in the refrigerant circulation path L10. The compressor 110 drives the refrigerant to circulate, causing the refrigerant to condense and release heat in the condenser 120, which can be used to heat the drying air. The refrigerant evaporates and absorbs heat in the first evaporator 130, which can be used to condense and remove water vapor from the drying air. The second drying subsystem 200 includes a moisture-absorbing and dehumidifying device 210 and a regeneration device. The moisture-absorbing and dehumidifying device 210 can absorb water vapor, while the regeneration device removes water vapor to regenerate the moisture-absorbing and dehumidifying device 210.
[0047] The first evaporator 130, the dehumidification device 210, and the condenser 120 are arranged in the drying air circulation path L20. Drying air circulates in the drying air circulation path L20. The drying air absorbs moisture from the object to be dried to dry it. The first evaporator 130 can condense and remove the moisture in the drying air. The dehumidification device 210 can further adsorb the moisture in the drying air to dry it a second time. The condenser 120 heats the drying air to generate high-temperature and high-dryness drying air so as to quickly dry the object to be dried.
[0048] Based on this, the second drying subsystem 200 is configured to start or stop at different drying stages of the first drying subsystem 100. The first drying subsystem 100 can be used to continuously dry the items to be dried. At different drying stages, the second drying subsystem 200 can be started or stopped in stages. Starting the second drying subsystem 200 can assist in drying, thereby improving drying efficiency and saving drying time. Stopping the second drying subsystem 200 can reduce energy consumption.
[0049] To improve regeneration efficiency and facilitate deployment, referring to Figures 1 and 2, in some embodiments of this disclosure, the regeneration device includes a second evaporator 220, and a moisture absorption and dehumidification device 210 is disposed in the desorption air circulation path L30. The second evaporator 220 is used to dehumidify the desorption air passing through the moisture absorption and dehumidification device 210.
[0050] Understandably, the second drying subsystem 200 also includes a second fan 230, which is used to provide the circulation power for the desorption air in the desorption air circulation path L30.
[0051] In this embodiment, the second evaporator 220 can be disposed in the refrigerant circulation path L10. The second evaporator 220 and the first evaporator 130 can be disposed in series or in parallel in the refrigerant circulation path L10. The refrigerant absorbs heat through the second evaporator 220 to reduce the temperature of the desorption air passing through the second evaporator 220. The water vapor in the desorption air condenses and is dehumidified and dried. The desorption air with high dryness dried by the second evaporator 220 passes through the moisture absorption and dehumidification device 210, which can carry away the water vapor adsorbed by the moisture absorption and dehumidification device 210 to complete the regeneration of the moisture absorption and dehumidification device 210.
[0052] The technical solution provided in this embodiment sets a second evaporator 220 as a regeneration device. The second evaporator 220 has a high removal effect on water vapor in the desorption air, and the second evaporator 220 can be set in the refrigerant circulation path L10, so that the first drying subsystem 100 and the second drying subsystem 200 are integrated, simplifying the structure and facilitating the layout of the regeneration device.
[0053] Here, a second evaporator 220 is set as a regeneration device. The second evaporator 220 has a high removal effect on water vapor in the desorption air, and the second evaporator 220 can be set in the refrigerant circulation path L10, so that the first drying subsystem 100 and the second drying subsystem 200 are integrated, simplifying the structure and facilitating the layout of the regeneration device.
[0054] To simplify the structure, referring to FIG2, in some embodiments of this disclosure, the second evaporator 220 and the first evaporator 130 are connected in series in the refrigerant circulation path L10, and the second evaporator 220 is located upstream of the first evaporator 130.
[0055] In this embodiment of the present disclosure, the first evaporator 130 and the second evaporator 220 are arranged in series, that is, the refrigerant passes through one of the evaporators first and then through the other evaporator during the refrigerant circulation process. In some embodiments, the second evaporator 220 is located upstream of the first evaporator 130, and the refrigerant first passes through the second evaporator 220 to remove moisture from the desorption air, and then passes through the first evaporator 130 to remove moisture from the drying air.
[0056] In other embodiments, the second evaporator 220 is located downstream of the first evaporator 130. The refrigerant first passes through the first evaporator 130 to remove moisture from the drying air, and then passes through the second evaporator 220 to remove moisture from the desorption air.
[0057] The technical solution provided in this embodiment connects the second evaporator 220 and the first evaporator 130 in series in the refrigerant circulation path L10. The refrigerant flows through the second evaporator 220 and the first evaporator 130 in sequence to remove water vapor from the desorption air and the drying air, respectively. The pipeline structure is relatively simple and easy to lay out.
[0058] To optimize the refrigerant circulation path, referring to FIG1, in some embodiments of this disclosure, the second evaporator 220 and the first evaporator 130 are arranged in parallel in the refrigerant circulation path L10, and a shut-off valve 300 is provided on the inlet side of the second evaporator 220; the shut-off valve 300 is configured to open when the second drying subsystem 200 is started and close when the second drying subsystem 200 is shut down.
[0059] In this embodiment of the present disclosure, the first evaporator 130 and the second evaporator 220 are arranged in parallel, that is, the two are connected to the compressor 110 through different pipelines. The refrigerant can pass through only one of the first evaporator 130 and the second evaporator 220, or it can be split to pass through the first evaporator 130 and the second evaporator 220 respectively.
[0060] In this embodiment, the shut-off valve 300 can be a straight-through type, a direct-flow type, an angle type, an electric flange type, etc. The shut-off valve 300 is located on the inlet side of the second evaporator 220. When the second drying subsystem 200 is started, the shut-off valve 300 is opened so that the refrigerant flows through the second evaporator 220 to dehumidify the desorption air. When the second drying subsystem 200 is shut down, the shut-off valve 300 is closed, and the refrigerant does not flow to the second evaporator 220, but flows entirely to the first evaporator 130 so that the first evaporator 130 dehumidifies the drying air.
[0061] The technical solution provided in this disclosure optimizes the refrigerant circulation path by connecting the second drying subsystem 200 and the first drying subsystem 100 in parallel in the refrigerant circulation path L10 and setting a shut-off valve 300. This allows the refrigerant to selectively flow through or not through the second evaporator 220. When the second drying subsystem 200 is shut down, the shut-off valve 300 is closed, and the refrigerant does not need to flow through the non-working second evaporator 220 and can flow directly into the first evaporator 130.
[0062] To improve the dehumidification effect of the second evaporator 220 and the first evaporator 130, referring to Figures 1 and 2, in some embodiments of this disclosure, the drying system further includes a throttle valve 400, and along the refrigerant circulation path L10, the compressor 110, condenser 120, throttle valve 400, second evaporator 220 and first evaporator 130 are arranged in sequence.
[0063] In this embodiment, the throttle valve 400 can be a needle type, ball type, butterfly type, nozzle type, etc. In some embodiments, the throttle valve 400 is an expansion valve. The throttle valve 400 disperses the refrigerant to reduce pressure and temperature by changing the throttling area. The throttle valve 400 can be provided on the inlet side of the first evaporator 130 and / or the second evaporator 220.
[0064] In some embodiments, the compressor 110, condenser 120, throttle 400, second evaporator 220 and first evaporator 130 are arranged sequentially along the refrigerant circulation path L10. The refrigerant passing through the condenser 120 is cooled and depressurized by the throttle 400 and then flows into the second evaporator 220 and / or the first evaporator 130 to absorb heat in the second evaporator 220 and / or the first evaporator 130.
[0065] The technical solution provided in this embodiment of the present disclosure, by setting a throttle 400 in the refrigerant circulation path L10, and the throttle 400 being located before the second evaporator 220 and the first evaporator 130, can reduce the pressure and temperature of the refrigerant through the throttle 400, so that the refrigerant in the second evaporator 220 and the first evaporator 130 has a lower temperature, thereby improving the dehumidification effect of the second evaporator 220 and the first evaporator 130.
[0066] To improve drying efficiency, referring to Figures 1 and 2, in some embodiments of this disclosure, the first drying subsystem 100 further includes a first fan 140, which is used to provide the circulation power of the drying air in the drying air circulation path L20; the second drying subsystem 200 further includes a second fan 230, which is used to provide the circulation power of the desorption air in the desorption air circulation path L30.
[0067] In this embodiment, the first fan 140 can be an axial flow fan, a centrifugal fan, a cross-flow fan, etc., and the second fan 230 can be the same as or different from the first fan 140. It is understood that the drying air circulation path L20 and the desorption air circulation path L30 are set in two independent air ducts, with the drying air driven by the first fan 140 and the desorption air driven by the second fan 230.
[0068] The technical solution provided in this embodiment can improve the flow rate of drying air and desorption air by setting a first fan 140 and a second fan 230, thereby improving the water vapor exchange efficiency between the drying air and the material to be dried, as well as the water vapor exchange efficiency between the desorption air and the moisture absorption and dehumidification device 210, so that the moisture absorption and dehumidification device 210 can be quickly regenerated. Both can effectively improve the drying efficiency.
[0069] To improve the regeneration efficiency of the dehumidification device 210, referring to Figures 1 and 2, in some embodiments of this disclosure, the dehumidification device 210 includes a dehumidification disc 211, and the regeneration device also includes a heater 212. The dehumidification disc 211 is used to adsorb water vapor in the drying air circulation path L20, and the heater 212 is used to desorb the water vapor adsorbed by the dehumidification disc 211 to the desorption air circulation path L30.
[0070] In this embodiment, the dehumidification device 210 can be a dehumidification turntable 211, which is a honeycomb or corrugated turntable carrying a desiccant. It can adsorb and desorb absorbed water vapor to achieve repeated desorption and regeneration. The desiccant can be zeolite, modified / synthetic zeolite, polymeric desiccant, alkali metal aluminosilicate, lithium chloride, silica gel, modified silica gel, activated alumina, etc.
[0071] In this embodiment, the dehumidifying rotary table 211 is driven to rotate by a drive structure, causing its various parts to move between a drying zone and a regeneration zone. Corresponding to the portion of the dehumidifying rotary table 211 that rotates to the drying zone, the desiccant adsorbs moisture from the drying air; corresponding to the portion of the dehumidifying rotary table 211 that rotates to the regeneration zone, the desorption air desorbs moisture from the desiccant. As the dehumidifying rotary table 211 rotates, the desiccant on it circulates between the drying zone and the regeneration zone to achieve dehumidification of the drying air or regeneration with the desorption air.
[0072] In this embodiment of the disclosure, heater 212 is disposed in the regeneration area, and heater 212 may be electrically heated. In some embodiments, heater 212 is a heating wire, a thermistor, etc. Heater 212 may also be heat pump type, infrared type, magnetoelectric type, etc., and this embodiment of the disclosure does not limit this.
[0073] The technical solution provided in this embodiment is that the dehumidification disc 211 of the dehumidification device 210 can adsorb water vapor in the drying air to dry the drying air. The heater 212 can heat the dehumidification disc 211 to quickly evaporate the water vapor adsorbed by the dehumidification disc 211 into the desorption air, thereby reducing the water vapor content in the dehumidification disc 211 and completing the regeneration of the dehumidification disc 211, which has a high regeneration efficiency.
[0074] To facilitate drying of the items to be dried, referring to Figures 1 and 2, in some embodiments of this disclosure, the drying system further includes a drying cylinder 500, which is used to hold the items to be dried. Along the drying air circulation path L20, the first evaporator 130, the moisture absorption and dehumidification device 210, the condenser 120 and the drying cylinder 500 are arranged in sequence.
[0075] In this embodiment, drying air passes through the drying cylinder 500, transferring heat to the items to be dried within the drying cylinder 500 and carrying away the vaporized water vapor from the items, thereby drying them. The drying cylinder 500 can be a drum, which can further improve drying efficiency by tumbling the items to be dried.
[0076] In this embodiment of the present disclosure, when the first evaporator 130, the moisture absorption and dehumidification device 210, the condenser 120 and the drying cylinder 500 are sequentially arranged on the drying air circulation path L20, the drying air can be dehumidified by the first evaporator 130 alone; the drying air can also be dehumidified by the first evaporator 130 and the moisture absorption and dehumidification device 210 in sequence, and become drier.
[0077] The technical solution provided in this embodiment of the present disclosure uses a drying cylinder 500 to hold the items to be dried. The drying air is dehumidified by the first evaporator 130, dehumidified a second time by the moisture absorption and dehumidification device 210, and then heated by the condenser 120 to become high-temperature and high-dryness drying air, so as to quickly dry the items to be dried.
[0078] To adapt to diverse drying needs, referring to FIG3, in some embodiments of this disclosure, the drying system may further include a measurement and control subsystem 600 and a human-machine interface subsystem 700. The measurement and control subsystem 600 can acquire the operating parameters of the first drying subsystem 100 and / or the second drying subsystem 200, and control the operation of each device in the first drying subsystem 100 and the second drying subsystem 200. The human-machine interface subsystem 700 is connected to the measurement and control subsystem 600, and can display the operating parameters to the user and receive the user's control commands. The measurement and control subsystem 600 controls the operation of each device in the first drying subsystem 100 and the second drying subsystem 200 according to the control commands.
[0079] Based on this, the present disclosure provides a garment processing device, including a drying system according to the present disclosure.
[0080] In this embodiment of the disclosure, the clothing processing device can be a dryer for drying clothes; the clothing processing device can also be a washer-dryer combo, which is further provided with a washing system for cleaning clothes and a drying system for drying the cleaned clothes.
[0081] The technical solution provided in this disclosure describes a second drying subsystem 200 in a garment processing device that is configured to start or stop at different drying stages of the first drying subsystem 100. The first drying subsystem 100 can be used to continuously dry the items to be dried. At different drying stages, the second drying subsystem 200 can be started or stopped in stages. Starting the second drying subsystem 200 can assist in drying, thereby improving drying efficiency and saving drying time. Stopping the second drying subsystem 200 can reduce energy consumption.
[0082] Furthermore, this disclosure provides a drying method for a garment processing device. Referring to Figures 1 and 2, the garment processing device includes a drying system, which includes a first drying subsystem 100 and a second drying subsystem 200. Referring to Figure 4, the drying method includes the following steps.
[0083] S100: Obtain the drying stage of the first drying subsystem 100.
[0084] S200: Based on the drying stage, control the second drying subsystem 200 to start or stop at different drying stages.
[0085] In this embodiment of the present disclosure, the drying stage of the first drying subsystem 100 may include a preheating stage, a normal stage, and a finishing stage. In the preheating stage, the object to be dried is in a low temperature and high humidity state, and the drying system needs to use drying air to bring the object to be dried to a preset drying temperature; in the normal stage, the first drying subsystem 100 maintains the preset drying temperature and continues to dry the object; in the finishing stage, the object to be dried is in a low humidity state, and the first drying subsystem 100 continues to dry until the object is dried.
[0086] Transitional stages can be set between the preheating stage and the regular stage, and between the regular stage and the finishing stage. The regular stage can also be divided into multiple identical or different drying stages. The drying stages can be set according to the working status of the first drying subsystem 100, the temperature and humidity of the material to be dried, etc. This disclosure does not impose any restrictions on this.
[0087] In this embodiment, the second drying subsystem 200 can be started during the preheating or finishing stages to assist the first drying subsystem 100 in drying, thereby improving drying efficiency. The second drying subsystem 200 can be shut down during normal stages to save energy. It should be noted that, depending on drying requirements, the second drying subsystem 200 can also be started or shut down during other drying stages.
[0088] The technical solution provided in this embodiment allows for the continuous drying of materials by a first drying subsystem 100. By acquiring the drying stage of the first drying subsystem 100 and controlling the phased start-up or shutdown of the second drying subsystem 200 based on that stage, the second drying subsystem 200 can assist in drying, thereby improving drying efficiency and saving drying time. Shutting down the second drying subsystem 200 can reduce energy consumption.
[0089] To improve the drying efficiency of the preheating stage, referring to FIG5, in some embodiments of this disclosure, the drying stage includes at least a preheating stage and a conventional stage arranged sequentially, and the drying method includes the following steps.
[0090] S210: When the drying stage is the preheating stage, control the second drying subsystem 200 to start.
[0091] S220: When the drying stage is in the normal stage, control the second drying subsystem 200 to shut down.
[0092] In this embodiment, the preheating stage and the normal stage can be determined by the temperature of the drying air outlet. Specifically, the temperature of the drying air at the outlet of the drying cylinder 500 is obtained using a temperature sensor or similar means. If the drying air outlet temperature is lower than the preset outlet temperature, the drying stage is determined to be the preheating stage; if the drying air outlet temperature is equal to or higher than the preset outlet temperature, the first drying subsystem 100 is determined to enter the normal stage. The preset outlet temperature is determined by the type of material to be dried and the drying requirements, and this embodiment does not limit this determination.
[0093] In this embodiment of the disclosure, the drying time of the preheating stage can be determined according to the user's set requirements. The drying system has a preset conventional drying mode, corresponding to the conventional drying time. The user can input instructions to specify the set drying time according to their needs. When the set drying time is less than the conventional drying time, it indicates that the user needs efficient drying. Based on this, the drying system extends the drying time of the preheating stage, that is, increases the proportion of the working time of the second drying subsystem 200 in the total drying time, thereby improving the drying efficiency to meet the user's personalized drying needs.
[0094] The technical solution provided in this disclosure activates the second drying subsystem 200 during the preheating stage. The second drying subsystem 200 removes moisture from the drying air to improve its dryness and heats the air to quickly raise the material to a suitable temperature, shortening the preheating time and improving drying efficiency. It is understood that activating the second drying subsystem 200 can rapidly raise the temperature when the drying air outlet temperature is low, such as in a low-temperature environment. When the user sets a short drying time and requires efficient drying, activating the second drying subsystem 200 can efficiently complete the drying operation. To improve the drying efficiency in the final stage, referring to Figure 5, in some embodiments of this disclosure, the drying stage also includes a final stage set after the conventional stage, and the drying method includes the following steps.
[0095] S230: When the drying stage is in its final stage, control the second drying subsystem 200 to start.
[0096] S240: At the end of the final stage, control the second drying subsystem 200 to shut down.
[0097] It should be noted that the preheating stage can be considered the beginning of the drying stage, the normal stage is the middle stage of the drying stage, and the final stage is the end stage of the drying stage. During the drying process, the preheating stage, the normal stage, and the final stage are performed sequentially.
[0098] In this embodiment of the present disclosure, the final stage can be determined by the humidity of the material to be dried. That is, the humidity parameters of the material to be dried are obtained by a humidity sensor or the like. If the humidity parameters are higher than a first preset humidity, it is determined that the first drying subsystem 100 is still in the normal stage; if the humidity parameters are equal to or lower than the first preset humidity, it is determined that the first drying subsystem 100 has entered the final stage. In addition, the determination of the final stage can also combine the humidity parameters with the temperature of the drying air outlet.
[0099] In this embodiment of the disclosure, the end of the final stage can also be determined by humidity parameters. If the humidity parameter is lower than the second preset humidity, the final stage is determined to be over, and the drying system can be shut down. The second preset humidity is less than the first preset humidity.
[0100] The technical solution provided in this embodiment starts the second drying subsystem 200 in the final stage. The second drying subsystem 200 can adsorb water vapor in the drying air to improve the dryness of the drying air, thereby improving the water vapor exchange efficiency between the drying air and the material to be dried, shortening the drying time in the final stage, improving the drying efficiency, and correspondingly reducing the time the material to be dried is exposed to a higher temperature, which can also protect the material to be dried.
[0101] To precisely control the second drying subsystem 200, referring to Figures 1 and 2, in some embodiments of this disclosure, the first drying subsystem 100 includes a compressor 110 and a condenser 120. Referring to Figure 6, the drying method includes the following steps.
[0102] S300: Obtain the operating parameters of compressor 110 or condenser 120.
[0103] S400: Controls the running time of the second drying subsystem 200 based on operating parameters.
[0104] S500: Controls the second drying subsystem 200 to start and stop intermittently during operation based on operating parameters.
[0105] In this embodiment of the disclosure, the operating parameters of the compressor 110 can be the power of the compressor 110 and the outlet temperature of the compressor 110, and the operating parameters of the condenser 120 can be the outlet temperature of the condenser 120. Specifically, the refrigerant temperature at the outlet side of the compressor 110 obtained by a temperature sensor is the first outlet temperature, and the refrigerant temperature at the outlet side of the condenser 120 obtained by a sensor is the second outlet temperature.
[0106] In some embodiments, if the first outlet temperature is greater than the first preset upper limit temperature, the operating time of the second drying subsystem 200 is shortened, for example, the second drying subsystem 200 is shut down; if the first outlet temperature is less than the first preset lower limit temperature, the operating time of the second drying subsystem 200 is extended, or the shut-down second drying subsystem 200 is restarted.
[0107] In other embodiments, if the second outlet temperature is greater than the second preset upper limit temperature, the operating time of the second drying subsystem 200 is shortened, for example, the second drying subsystem 200 is shut down; if the second outlet temperature is less than the second preset lower limit temperature, the operating time of the second drying subsystem 200 is extended, or the shut-down second drying subsystem 200 is restarted.
[0108] In this embodiment of the present disclosure, when the first outlet temperature is between the first preset lower limit temperature and the first preset upper limit temperature, or when the second outlet temperature is between the second preset lower limit temperature and the second preset upper limit temperature, the second drying subsystem 200 is controlled to start intermittently. That is, the second drying subsystem 200 is controlled to alternately start and stop during the operating time.
[0109] The technical solution provided in this disclosure uses operating parameters to reflect the working status of the first drying subsystem 100 in the refrigerant circulation path L10. The operating time of the second drying subsystem 200 is adjusted according to the operating parameters so that the second drying subsystem 200 and the first drying subsystem 100 can cooperate better in order to balance drying efficiency and energy saving.
[0110] To protect the items to be dried, referring to Figures 1 and 2, in some embodiments of this disclosure, the first drying subsystem 100 includes a compressor 110 and a condenser 120. Both the first drying subsystem 100 and the second drying subsystem 200 include an evaporator, and a throttle 400 is provided on the inlet side of the evaporator. Referring to Figure 6, the drying method includes the following steps.
[0111] S300: Obtain the operating parameters of compressor 110 or condenser 120.
[0112] S600: Controls the throttling parameters of the throttle 400 based on operating condition parameters.
[0113] In this embodiment of the present disclosure, the evaporator includes a first evaporator 130 disposed in the first drying subsystem 100 and a second evaporator 220 disposed in the second drying subsystem 200.
[0114] In some embodiments, the throttling device 400 is controlled based on the second outlet temperature of the condenser 120. When the second outlet temperature is higher than the third preset upper limit temperature, the throttling device 400 is controlled to increase the throttling parameter to improve the cooling capacity of the throttling device 400. When the second outlet temperature is lower than the third preset lower limit temperature, the throttling device 400 is controlled to decrease the throttling parameter to reduce the cooling capacity of the throttling device 400. This ensures that the subsequent first evaporator 130 and second evaporator 220 are in a suitable working state, thereby maintaining the temperature and humidity when the drying air enters the drying cylinder 500.
[0115] It should be noted that the first preset upper limit temperature, the first preset lower limit temperature, the second preset upper limit temperature, the second preset lower limit temperature, the third preset upper limit temperature, and the third preset lower limit temperature are determined by the type of material to be dried and the drying requirements, and this embodiment does not limit them.
[0116] The technical solution provided in this disclosure adjusts the throttling parameters of the throttling device 400 according to the operating parameters to change the degree of throttling of the refrigerant, so as to adapt to the rapid regeneration rate of the dehumidification disc 211. Furthermore, by adjusting the refrigerant, the heat exchange efficiency can be increased or decreased so that the temperature of the drying air fluctuates within a reasonable range, and the time that the items to be dried are exposed to higher temperatures is reduced accordingly, thereby protecting the items to be dried.
[0117] It should be noted that the above-mentioned scheme for controlling the second drying subsystem 200 or the throttle valve 400 based on the operating parameters of the compressor 110 or the condenser 120 is not related to the drying stage of the first drying subsystem 100. The regulation of the second drying subsystem 200 or the throttle valve 400 can be carried out in the preheating stage, the normal stage, the finishing stage, or other drying stages.
[0118] Referring to Figures 1, 2, and 5, in one embodiment of this disclosure, the first drying subsystem 100 is a heat pump drying system, and the second drying subsystem 200 is a molecular sieve desorption system. The first drying subsystem 100 includes a preheating stage, a normal stage, and a finishing stage during the drying process.
[0119] When the first drying subsystem 100 is in the preset stage, the clothes have high humidity and low temperature. The second drying subsystem 200 is then activated. The drying air is dehumidified by the first evaporator 130, and then undergoes secondary dehumidification by the moisture absorption and dehumidification device 210, while also absorbing heat from the device to raise its temperature. This secondary dehumidification provides highly dry drying air, quickly reducing the humidity of the clothes. Furthermore, the heat absorption assists in heating the drying air, rapidly increasing the temperature of the clothes and shortening the preset stage time.
[0120] When the first drying subsystem 100 is in its normal operating phase, the second drying subsystem 200 can be shut down to save energy. Furthermore, the user can also control the second drying subsystem 200 to shut it down during different drying stages, thus activating the drying system in energy-saving mode.
[0121] When the second drying subsystem 200 is in the final stage, the humidity of the clothes is low and the temperature is high, which reduces the water vapor exchange efficiency with the drying air. When the second drying subsystem 200 is started, the drying air is dehumidified by the first evaporator 130 and then dehumidified a second time by the moisture absorption and dehumidification device 210. This can obtain drying air with high dryness, thereby improving the water vapor exchange efficiency between the drying air and the clothes and shortening the time of the final stage.
[0122] The sequence numbers of the embodiments disclosed above are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are only some embodiments of this disclosure and do not limit the patent scope of this disclosure. Any equivalent structural or procedural transformations made based on the content of this disclosure and its drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this disclosure.
Claims
1. A drying system, characterized in that, include: The first drying subsystem includes a condenser and a first evaporator disposed in the refrigerant circulation path; and The second drying subsystem includes a moisture absorption and dehumidification device and a regeneration device. The first evaporator, the moisture absorption and dehumidification device, and the condenser are arranged in the drying air circulation path, and the second drying subsystem is configured to start or stop at different drying stages of the first drying subsystem.
2. The drying system according to claim 1, characterized in that, The regeneration device includes a second evaporator, and the second evaporator and the moisture absorption and dehumidification device are arranged in the desorption air circulation path. The second evaporator is used to dehumidify the desorption air passing through the moisture absorption and dehumidification device.
3. The drying system according to claim 2, characterized in that, The second evaporator and the first evaporator are connected in series in the refrigerant circulation path, and the second evaporator is located upstream of the first evaporator.
4. The drying system according to claim 2, characterized in that, The second evaporator and the first evaporator are connected in parallel in the refrigerant circulation path, and a shut-off valve is provided on the inlet side of the second evaporator; The shut-off valve is configured to open when the second drying subsystem is started and close when the second drying subsystem is shut down.
5. The drying system according to any one of claims 2 to 4, characterized in that, The drying system also includes a compressor and a throttle valve, and the compressor, the condenser, the throttle valve, the second evaporator and the first evaporator are arranged sequentially along the refrigerant circulation path.
6. The drying system according to any one of claims 2 to 5, characterized in that, The first drying subsystem further includes a first fan, which is used to provide the circulation power for the drying air in the drying air circulation path; The second drying subsystem also includes a second fan, which provides the circulating power for the desorption air in the desorption air circulation path.
7. The drying system according to any one of claims 2 to 6, characterized in that, The dehumidification device includes a dehumidification disc, and the regeneration device further includes a heater. The dehumidification disc is used to adsorb water vapor in the drying air circulation path, and the heater is used to desorb the water vapor adsorbed by the dehumidification disc into the desorption air circulation path.
8. The drying system according to any one of claims 1 to 4, characterized in that, The drying system also includes a drying cylinder for holding the object to be dried. The first evaporator, the moisture absorption and dehumidification device, the condenser and the drying cylinder are arranged in sequence along the drying air circulation path.
9. A garment processing device, characterized in that, include: The drying system according to any one of claims 1 to 8.
10. A drying method for use in clothing processing equipment, characterized in that, The garment processing equipment includes a drying system, which includes a first drying subsystem and a second drying subsystem; the drying method includes: Obtain the drying stage of the first drying subsystem; and Based on the drying stage, the second drying subsystem is controlled to start or stop at different drying stages.
11. The drying method according to claim 10, characterized in that, The drying stage includes at least a preheating stage and a conventional stage arranged sequentially, and the method includes: When the drying stage is a preheating stage, the second drying subsystem is started; and If the drying stage is a normal stage, the second drying subsystem is shut down.
12. The drying method according to claim 11, characterized in that, If the temperature of the drying air outlet is lower than the preset outlet temperature, the drying stage is determined to be the preheating stage.
13. The drying method according to claim 12, characterized in that, If the set drying time is less than the normal drying time, the drying time of the preheating stage is extended.
14. The drying method according to claim 11, characterized in that, The drying stage further includes a finishing stage following the conventional stage, and the method includes: When the drying stage is in its final stage, the second drying subsystem is started; and Upon completion of the final stage, the second drying subsystem is shut down.
15. The drying method according to any one of claims 10-14, characterized in that, The first drying subsystem includes a compressor and a condenser, and the method includes: Obtain the operating parameters of the compressor or the condenser; and The operating time of the second drying subsystem is controlled based on the aforementioned operating parameters; Based on the operating parameters, the second drying subsystem is controlled to start and stop intermittently during the operating time.
16. The drying method according to any one of claims 10-14, characterized in that, The first drying subsystem includes a compressor and a condenser. Both the first drying subsystem and the second drying subsystem include an evaporator. A throttle is provided on the inlet side of the evaporator. The method includes: Obtain the operating parameters of the compressor or the condenser; and The throttling parameters of the throttle are controlled based on the operating parameters.