Rotary wheel dehumidification system and clothes processing equipment

Abstract

The utility model relates to the technical field of clothes drying, and provides a rotating wheel dehumidification system and clothes processing equipment, the rotating wheel dehumidification system comprises a first heat exchanger, a second heat exchanger, a rotating wheel dehumidification device, a first fan, a second fan and a third heat exchanger, and the rotating wheel dehumidification device is provided with a moisture absorption area, a regeneration area and a preheating area; the first heat exchanger, the moisture absorption area, the second heat exchanger and the first fan form a drying air duct, and the first heat exchanger is located on the upstream of the second heat exchanger in the air direction of the drying air duct; the preheating area, the second fan, the third heat exchanger and the regeneration area form a regeneration air duct, and the third heat exchanger is used for increasing the temperature of regeneration air in the regeneration air duct; wherein the air inlet of the preheating area is used for external air to enter, and the air outlet of the regeneration area is used for regenerated air to flow out. When outside air passes through the preheating area, water in the outside air is adsorbed, and the temperature rises, so that the energy consumption of the third heat exchanger is reduced, and the problem that a large amount of energy needs to be consumed in the dehumidification and desorption process of the rotating wheel is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothes drying, and in particular to a rotary drum dehumidification system and clothes treatment equipment. BACKGROUND

[0002] At present, clothes dryers are mainly divided into two types, one is a heat pump clothes dryer, and the other is a rotary drum dehumidification clothes dryer. The heat pump clothes dryer blows high-temperature and low-humidity hot air into the drum to evaporate the moisture of the clothes, thereby reducing the water content of the clothes and achieving the purpose of drying the clothes. The humid and hot air discharged after passing through the drum is cooled and dehumidified by the evaporator, and then enters the condenser to be heated and sent into the drum again. This cycle is repeated until the clothes are fully dried.

[0003] The rotary drum dehumidification clothes dryer absorbs the water vapor in the air by the desiccant in the rotary drum. Due to the adsorption heat, the air becomes high-temperature and low-humidity air and enters the drum of the clothes dryer, thereby reducing the water content of the clothes and achieving the purpose of drying the clothes. The desiccant is regenerated by passing through the rotary drum with high-temperature air.

[0004] The clothes dryer combining heat pump and rotary drum dehumidification can combine the advantages of the two dehumidification methods, has good dehumidification effect, fast drying speed, and can meet the drying requirements of most people. However, during operation, a large amount of energy is consumed during the desorption process of the rotary drum dehumidification. CONTENT OF THE INVENTION

[0005] Therefore, the present application provides a rotary drum dehumidification system and clothes treatment equipment to solve the problem of large energy consumption during the desorption process of the rotary drum dehumidification.

[0006] The first aspect of the present application provides a rotary drum dehumidification system, comprising a first heat exchanger, a second heat exchanger, a rotary drum dehumidification device, a first fan, a second fan and a third heat exchanger. The rotary drum dehumidification device has a moisture absorption zone, a regeneration zone and a preheating zone. The first heat exchanger, the moisture absorption zone, the second heat exchanger and the first fan constitute a drying air duct. Along the air direction of the drying air duct, the first heat exchanger is upstream of the second heat exchanger. The first heat exchanger is used to reduce the temperature of the drying air in the drying air duct, and the second heat exchanger is used to increase the temperature of the drying air in the drying air duct. The preheating zone, the second fan, the third heat exchanger and the regeneration zone constitute a regeneration air duct, and the third heat exchanger is used to increase the temperature of the regeneration air in the regeneration air duct. The air inlet of the preheating zone is provided for external air to enter, and the air outlet of the regeneration zone is provided for the regeneration air to flow out.

[0007] The rotary dehumidification system provided by the embodiments of the present application has the following advantages: during use, the drying air duct is connected to the clothes container to form a circulating air duct, that is, the drying air in the clothes container reenters the clothes container after passing through the first heat exchanger, the moisture absorption zone and the second heat exchanger, so as to realize the drying of the clothes. The first heat exchanger can reduce the temperature of the drying air in the drying air duct, so that the water vapor in the drying air in the drying air duct is condensed to achieve the dehumidification effect; the moisture absorption zone of the rotary dehumidification device can absorb the water vapor in the drying air in the drying air duct to further dehumidify, and the absorption process generates heat, so that the temperature of the drying air in the drying air duct is increased and the drying air is dried; the second heat exchanger can further increase the temperature of the drying air in the drying air duct, so that the temperature of the drying air in the drying air duct is relatively high, which is beneficial to the drying of the clothes in the clothes container. Since the drying air duct is connected to the clothes container to form a circulating air duct, in order to avoid affecting the circulation of the drying air, a branch air duct cannot be introduced from the drying air duct to connect the preheating zone of the rotary dehumidification device, that is, part of the drying air cannot be used as regeneration air.

[0008] The external air first enters the preheating zone of the rotary dehumidification device through the air inlet of the preheating zone, then enters the regeneration zone of the rotary dehumidification device through the third heat exchanger, and then flows out from the air outlet of the regeneration zone. In the preheating zone, the water in the external air is absorbed, and the temperature of the external air can be increased at the same time. When the external air (which can be referred to as regeneration air at this time) enters the third heat exchanger in the regeneration air duct, the temperature is further increased; the high-temperature regeneration air can make the water in the regeneration zone desorb, and then the regeneration air is discharged to the outside.

[0009] Since the water in the external air is absorbed and the temperature is increased when the external air passes through the preheating zone, the energy consumption of the third heat exchanger is reduced, and the problem that a large amount of energy is consumed in the desorption process of the rotary dehumidification is solved.

[0010] In some embodiments, the rotary dehumidification system further includes a first air inlet duct, a first end of the first air inlet duct is used to connect to the outside, a second end of the first air inlet duct is connected to the air inlet of the preheating zone, and a first filter is arranged on the first air inlet duct.

[0011] In some embodiments, the rotary dehumidification system further includes a second air inlet duct, a first end of the second air inlet duct is used for external air to enter, and a second end of the second air inlet duct is connected to the regeneration air duct; along the air direction of the regeneration air duct, the second end of the second air inlet duct is located upstream of the third heat exchanger.

[0012] In some embodiments, a fourth heat exchanger is arranged on the second air inlet duct, and the fourth heat exchanger is used to increase the temperature of the external air in the second air inlet duct.

[0013] In some embodiments, the first heat exchanger is a first evaporator, the second heat exchanger is a condenser, and the fourth heat exchanger is a second evaporator; the rotary dehumidification system further comprises a compressor and a throttling device, the second heat exchanger is connected between an outlet of the compressor and an inlet of the throttling device, and the first heat exchanger and the second heat exchanger are connected between an inlet of the compressor and an outlet of the throttling device.

[0014] In some embodiments, a second filter is arranged on the second air inlet channel.

[0015] In some embodiments, a second end of the second air inlet channel is downstream of the second fan, and the rotary dehumidification system further comprises a third fan arranged on the second air inlet channel.

[0016] In some embodiments, the rotary dehumidification system further comprises an air outlet channel and a fifth heat exchanger, a first end of the air outlet channel is connected to an air outlet of the regeneration zone, a second end of the air outlet channel is configured to be connected to an external environment, and the fifth heat exchanger is arranged on both the air outlet channel and the regeneration air channel.

[0017] In some embodiments, the fifth heat exchanger is a partition heat exchanger.

[0018] In some embodiments, the moisture absorption zone is a sector shape, and a corresponding central angle of the moisture absorption zone is 180°-270°; and / or, the regeneration zone is a sector shape, and a corresponding central angle of the regeneration zone is 0°-90°; and / or, the preheating zone is a sector shape, and a corresponding central angle of the preheating zone is 0°-90°.

[0019] In some embodiments, a corresponding central angle of the moisture absorption zone is 225°, a corresponding central angle of the regeneration zone is 90°, and a corresponding central angle of the preheating zone is 45°.

[0020] A second aspect of the present application provides a laundry treatment apparatus, which comprises a cabinet, a laundry container, and a rotary dehumidification system as described in the first aspect, the rotary dehumidification system and the laundry container are arranged in the cabinet, the second heat exchanger is located at an air inlet side of the laundry container, and the first heat exchanger is located at an air outlet side of the laundry container.

[0021] The laundry treatment apparatus adopts any one or more embodiments of the above-described rotary dehumidification system, and thus has the beneficial effects of the above-described embodiments, which will not be repeated here.

[0022] In some embodiments, the cabinet comprises a base assembly, and the base assembly is configured to form at least part of the drying air channel and the regeneration air channel.

[0023] The above description is only a summary of the technical solutions of the present application. In order to make the technical means of the present application more clearly understood and implemented according to the content of the description, and in order to make the above and other purposes, characteristics and advantages of the present application more obvious and easy to understand, the following specific embodiments of the present application are described. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments or conventional technical description. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without any creative labor.

[0025] Figure 1 is a structural schematic diagram of a rotary dehumidification system provided by some embodiments of the present application;

[0026] Figure 2 is a structural schematic diagram of a rotary dehumidification system provided by some embodiments of the present application; Figure 1

[0027] Figure 3 is a structural schematic diagram of a rotary dehumidification system provided by some embodiments of the present application; Figure 1

[0028] Figure 4 is a structural schematic diagram of a rotary dehumidification system provided by some embodiments of the present application;

[0029] Figure 5 is a structural schematic diagram of a rotary dehumidification system provided by some embodiments of the present application; Figure 4

[0030] Figure 6 is a structural schematic diagram of a rotary dehumidification system provided by some embodiments of the present application;

[0031] Figure 7 is a structural schematic diagram of a rotary dehumidification system provided by some embodiments of the present application.

[0032] The meanings of the marks in the drawings are as follows:

[0033] 100, rotary dehumidification system;

[0034] 10, drying air duct; 11, first heat exchanger; 12, second heat exchanger; 13, first fan;

[0035] 20, regeneration air duct; 21, second fan; 22, third heat exchanger;

[0036] ​​​30, rotary dehumidifier; 31, moisture absorption zone; 32, regeneration zone; 33, preheating zone;

[0037] 40, first air inlet; 41, first filter;

[0038] 50, second air inlet; 51, fourth heat exchanger; 52, second filter; 53, third fan;

[0039] 60, air outlet;

[0040] 70, fifth heat exchanger;

[0041] 80, compressor;

[0042] 90, throttling device;

[0043] 200, clothes container. DETAILED DESCRIPTION

[0044] The embodiments of the present application will be described in detail below with reference to the drawings. The following embodiments are only used to more clearly illustrate the technical scheme of the present application, and therefore only serve as examples, and cannot be used to limit the protection scope of the present application.

[0045] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present application; the terms "comprising" and "having," and any variations thereof, as used herein are intended to cover a non-exclusive inclusion.

[0046] In the description of the embodiments of the present application, the technical terms "first", "second", etc. are only used to distinguish different objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number, specific order or primary and secondary relationship of the indicated technical features. In the description of the embodiments of the present application, the meaning of "a plurality of" is two or more, unless otherwise explicitly and specifically limited.

[0047] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0048] In the description of the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B, which can represent the three cases of A alone, A and B together, and B alone. In addition, the character " / " in this paper generally represents that the front and rear associated objects are a "or" relationship.

[0049] In the description of the embodiments of the present application, the term "a plurality of" refers to two or more (including two), and similarly, "a plurality of groups" refers to two or more groups (including two groups), and "a plurality of pieces" refers to two or more pieces (including two pieces).

[0050] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. The orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application.

[0051] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanical connection, or it can be electrical connection; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0052] The first aspect of the present application proposes a rotary dehumidification system for use in a clothes treatment apparatus (e.g., a clothes dryer, a washer-dryer). Please refer to Figure 1 and Figure 2The rotary dehumidification system 100 comprises a first heat exchanger 11, a second heat exchanger 12, a rotary dehumidification device 30, a first fan 13, a second fan 21 and a third heat exchanger 22. The rotary dehumidification device 30 has a dehumidification zone 31, a regeneration zone 32 and a preheating zone 33; the first heat exchanger 11, the dehumidification zone 31, the second heat exchanger 12 and the first fan 13 constitute a drying air duct 10, along the air direction of the drying air duct 10, the first heat exchanger 11 is upstream of the second heat exchanger 12, the first heat exchanger 11 is used to lower the temperature of the drying air in the drying air duct 10, and the second heat exchanger 12 is used to raise the temperature of the drying air in the drying air duct 10; the preheating zone 33, the second fan 21, the third heat exchanger 22 and the regeneration zone 32 constitute a regeneration air duct 20, and the third heat exchanger 22 is used to raise the temperature of the regeneration air in the regeneration air duct 20; wherein the air inlet of the preheating zone 33 is provided for external air to enter, and the air outlet of the regeneration zone 32 is provided for the regeneration air to flow out.

[0053] The air direction of the drying air duct 10 is shown by the arrow in the drying air duct 10. Figure 1 The air direction of the drying air duct 10 is shown by the arrow in the drying air duct 10.

[0054] The first heat exchanger 11 is upstream of the second heat exchanger 12, that is, the drying air flowing out of the clothes container 200 flows from the first heat exchanger 11 to the second heat exchanger 12. The first heat exchanger 11 is used to lower the temperature of the drying air in the drying air duct 10, so that the water vapor in the drying air in the drying air duct 10 condenses, thereby achieving dehumidification; the second heat exchanger 12 is used to raise the temperature of the drying air in the drying air duct 10, so as to obtain drying air with higher temperature and dryness, thereby facilitating the drying of the clothes in the clothes container 200.

[0055] The rotary dehumidification device 30 has a dehumidification zone 31, a regeneration zone 32 and a preheating zone 33; optionally, the rotary dehumidification device 30 comprises a shell and a rotary wheel rotatably installed in the shell, the shell is divided into the dehumidification zone 31, the regeneration zone 32 and the preheating zone 33, and a dehumidifier is arranged on the rotary wheel; during rotation of the rotary wheel, the dehumidifier can be arranged corresponding to the dehumidification zone 31, the regeneration zone 32 or the preheating zone 33.

[0056] The shape of the shell can be designed according to actual working conditions, as long as it comprises at least three functional zones of the dehumidification zone 31, the regeneration zone 32 and the preheating zone 33. The shape of each functional zone can also be designed according to actual needs, which can be square, triangular, circular or sector-shaped, as long as the dehumidification zone 31, the regeneration zone 32 and the preheating zone 33 are isolated from each other; among them, the sector-shaped can more effectively and reasonably utilize the space.

[0057] The rotating wheel can be a honeycomb or corrugated rotating wheel carrying a hygroscopic agent, which can adsorb and desorb the absorbed water vapor to realize repeated desorption and regeneration. Alternatively, the rotating wheel comprises inorganic / organic fiber carriers (such as ceramic, glass fiber, etc.), and the fiber carriers are coated with a hygroscopic agent, which is uniformly distributed between the fiber carriers and the surface of the fiber carriers to realize adsorption of the moisture in the air flow.

[0058] The hygroscopic agent can be a material with hygroscopic properties, such as molecular sieve (including but not limited to A-type molecular sieve, X / Y-type molecular sieve, ZSM molecular sieve, Beta molecular sieve, single crystal molecular sieve or mixed crystal molecular sieve, etc.), zeolite, modified / synthetic zeolite, high molecular hygroscopic agent, alkali metal aluminosilicate, lithium chloride, silica gel, modified silica gel, activated alumina, etc.

[0059] The hygroscopic area 31 of the rotating wheel dehumidification device 30 is used to assist in dehumidifying the drying air in the drying air duct 10 to accelerate the drying speed and reduce the drying time. It can be understood that the rotating wheel dehumidification device 30 can be located between the first heat exchanger 11 and the second heat exchanger 12; alternatively, the rotating wheel dehumidification device 30 can be located upstream of the first heat exchanger 11; or the rotating wheel dehumidification device 30 can be located downstream of the second heat exchanger 12.

[0060] The first fan 13 is used to circulate the drying air in the drying air duct 10 to continuously dry the clothes in the clothes container 200 by the drying air. The position of the first fan 13 is not limited in the present application, for example, the first fan 13 can be located upstream of the first heat exchanger 11, downstream of the second heat exchanger 12, between the first heat exchanger 11 and the hygroscopic area 31 of the rotating wheel dehumidification device 30, or between the hygroscopic area 31 of the rotating wheel dehumidification device 30 and the second heat exchanger 12.

[0061] The second fan 21 is used to continuously flow the regeneration air in the regeneration air duct 20 to continuously desorb the hygroscopic agent in the regeneration area 32 by the regeneration air. The position of the second fan 21 is not limited in the present application, for example, the second fan 21 can be located upstream of the third heat exchanger 22, or downstream of the third heat exchanger 22.

[0062] The third heat exchanger 22 is used to raise the temperature of the regeneration air in the regeneration air duct 20, and the third heat exchanger 22 can be a heater, for example, the heater can be a heating wire, a steam coil, etc., which can directly heat the regeneration air to improve the heating efficiency. Of course, the third heat exchanger 22 can also be a condenser.

[0063] The first heat exchanger 11, the moisture absorption area 31, the second heat exchanger 12 and the first fan 13 constitute the drying air duct 10. It can be understood that the first heat exchanger 11, the moisture absorption area 31, the second heat exchanger 12 and the first fan 13 can constitute the drying air duct 10 by using the base assembly of the cabinet or by using the pipeline in the cabinet.

[0064] The preheating area 33, the second fan 21, the third heat exchanger 22 and the regeneration area 32 constitute the regeneration air duct 20. It can be understood that the preheating area 33, the second fan 21, the third heat exchanger 22 and the regeneration area 32 can constitute the regeneration air duct 20 by using the base assembly of the cabinet or by using the pipeline in the cabinet.

[0065] The air inlet of the preheating area 33 is used for allowing external air to enter, and the air outlet of the regeneration area 32 is used for allowing regenerated air to flow out. It can be understood that the air inlet of the preheating area 33 is the air inlet of the regeneration air duct 20, and the air outlet of the regeneration area 32 is the air outlet of the regeneration air duct 20.

[0066] The rotary dehumidification system 100 provided by the embodiment has the following beneficial effects. During use, the drying air duct 10 is connected to the clothes container 200 to form a circulating air duct, that is, the drying air in the clothes container 200 enters the clothes container 200 again after passing through the first heat exchanger 11, the moisture absorption area 31 and the second heat exchanger 12, so as to realize drying of the clothes. The first heat exchanger 11 can reduce the temperature of the drying air in the drying air duct 10, so that the water vapor in the drying air in the drying air duct 10 is condensed to achieve dehumidification. The moisture absorption area 31 of the rotary dehumidification device 30 can absorb the water vapor in the drying air in the drying air duct 10 to further dehumidify, and the absorption process generates heat, so that the temperature of the drying air in the drying air duct 10 is increased and the drying air is dried. The second heat exchanger 12 can further increase the temperature of the drying air in the drying air duct 10, so that the temperature of the drying air in the drying air duct 10 is relatively high, which is beneficial to drying of the clothes in the clothes container 200. Since the drying air duct 10 is connected to the clothes container 200 to form a circulating air duct, in order to avoid affecting the circulating flow of the drying air, a branch air duct cannot be introduced from the drying air duct 10 to connect the preheating area 33 of the rotary dehumidification device 30, that is, part of the drying air cannot be used as regenerated air.

[0067] External air first enters the preheating area 33 of the rotary dehumidification device 30 through the air inlet of the preheating area 33, then enters the regeneration area 32 of the rotary dehumidification device 30 through the third heat exchanger 22, and then flows out from the air outlet of the regeneration area 32. In the preheating area 33, the water in the external air is absorbed, and the temperature of the external air is increased at the same time. When the external air (which can be referred to as regenerated air at this time) enters the third heat exchanger 22 in the regeneration air duct 20, the temperature of the external air is further increased. The high-temperature regenerated air can make the water in the regeneration area 32 desorb, and then the regenerated air is discharged to the outside.

[0068] Since the water in the ambient air is adsorbed and the temperature is increased when the ambient air passes through the preheating area 33, the energy consumption of the third heat exchanger 22 is reduced, and the problem that a large amount of energy is consumed in the desorption process of the rotary dehumidification is solved.

[0069] Please refer to Figure 1 In some embodiments, the rotary dehumidification system 100 further comprises a first air inlet channel 40, a first end of the first air inlet channel 40 is used for connecting the ambient, and a second end of the first air inlet channel 40 is connected to the air inlet of the preheating area 33. A first filter 41 is arranged on the first air inlet channel 40.

[0070] The first end of the first air inlet channel 40 is used for connecting the ambient, and the second end of the first air inlet channel 40 is connected to the air inlet of the preheating area 33. It can be understood that part or all of the ambient air enters the preheating area 33 through the first air inlet channel 40.

[0071] The first air inlet channel 40 can be constructed by using the base assembly of the machine case, or can be constructed by using the pipeline in the machine case.

[0072] The first filter 41 is mainly used for filtering impurities in the ambient air to prevent the impurities from entering the rotary dehumidification device 30 and affecting the service life thereof.

[0073] Optionally, the first filter 41 can be filter cotton, filter screens with different mesh sizes, etc.

[0074] Based on the above scheme, by connecting the first air inlet channel 40 to the air inlet of the preheating area 33 and arranging the first filter 41 on the first air inlet channel 40, compared with directly arranging the first filter 41 at the air inlet of the preheating area 33, the installation of the first filter 41 is more convenient.

[0075] In other embodiments, the first air inlet channel 40 can not be arranged, or the first filter 41 can not be arranged; or the first air inlet channel 40 can not be arranged, but the first filter 41 is arranged at the air inlet of the preheating area 33.

[0076] Please refer to Figure 1 In some embodiments, the rotary dehumidification system 100 further comprises a second air inlet channel 50, a first end of the second air inlet channel 50 is used for entering the ambient air, and a second end of the second air inlet channel 50 is connected to the regeneration air channel 20; along the air direction of the regeneration air channel 20, the second end of the second air inlet channel 50 is located upstream of the third heat exchanger 22.

[0077] The first end of the second air inlet channel 50 is used for entering the ambient air, and the second end of the second air inlet channel 50 is connected to the regeneration air channel 20. It can be understood that part of the ambient air enters the regeneration air channel 20 through the second air inlet channel 50.

[0078] The second air inlet 50 can be configured by a base assembly of the cabinet or by a pipeline in the cabinet.

[0079] According to the above scheme, the part of the outside air entering the second air inlet 50 is mixed with the part of the outside air entering the air inlet of the preheating area 33, heated by the third heat exchanger 22, and then dehumidified by the regeneration area 32 of the rotary dehumidification device 30, and finally discharged from the air outlet of the regeneration area 32. In this way, the air volume of the regeneration air can be increased, which is beneficial to improve the desorption efficiency of the regeneration area 32.

[0080] In other embodiments, the second air inlet 50 can not be provided, and only the first air inlet 40 is used.

[0081] Please refer to Figure 4 In some embodiments, the second air inlet 50 is provided with a fourth heat exchanger 51, and the fourth heat exchanger 51 is used to increase the temperature of the outside air in the second air inlet 50.

[0082] According to the above scheme, the fourth heat exchanger 51 can reduce the humidity of the outside air in the second air inlet 50, and at the same time, can increase the temperature of the outside air in the second air inlet 50, so that the outside air in the second air inlet 50 can reduce the energy consumption of the third heat exchanger 22 after entering the regeneration air inlet 20, and better complete the regeneration process.

[0083] Please refer to Figure 4 and Figure 5 In some embodiments, the first heat exchanger 11 is a first evaporator, the second heat exchanger 12 is a condenser, and the fourth heat exchanger 51 is a second evaporator; the rotary dehumidification system 100 further comprises a compressor 80 and a throttling device 90, the second heat exchanger 12 is connected between the outlet of the compressor 80 and the inlet of the throttling device 90, and the first heat exchanger 11 and the fourth heat exchanger 51 are connected between the inlet of the compressor 80 and the outlet of the throttling device 90. Optionally, the above connection is connected by a copper pipe.

[0084] The high-temperature and high-pressure refrigerant from the compressor 80 is condensed and released heat by the second heat exchanger 12, the temperature and pressure are reduced by the throttling device 90, evaporated and absorbed heat in the first heat exchanger 11 and the fourth heat exchanger 51, and finally returned to the compressor 80. The flow direction of the refrigerant is shown by the arrow in Figure 5 Optionally, the refrigerant is a refrigerant, which uses the characteristics of phase change of the refrigerant to achieve the purpose of dehumidification and heating and drying.

[0085] According to the above scheme, the first heat exchanger 11 and the fourth heat exchanger 51 share the compressor 80 and the throttling device 90, which can simplify the structure and reduce the cost.

[0086] In other embodiments, the fourth heat exchanger 51 is not provided, or the fourth heat exchanger 51 is in other forms of heat exchanger; please refer to Figure 1 and Figure 3 At this time, the second heat exchanger 12 is connected between the outlet of the compressor 80 and the inlet of the throttling device 90, and the first heat exchanger 11 is connected between the inlet of the compressor 80 and the outlet of the throttling device 90.

[0087] In other embodiments, the compressor 80 and the throttling device 90 can not be provided, the first heat exchanger 11 and the fourth heat exchanger 51 are both cold water coils, and the second heat exchanger 12 is a steam coil.

[0088] Please refer to Figure 1 and Figure 4 In some embodiments, the second filter 52 is provided on the second air inlet channel 50.

[0089] Optionally, the second filter 52 can be filter cotton, filter screens of different mesh sizes, etc.

[0090] Among them, the second filter 52 is upstream of the fourth heat exchanger 51.

[0091] Based on the above scheme, the second filter 52 is mainly used to filter impurities in the external air, so as to prevent the impurities from entering the rotary dehumidification device 30 and affecting the service life thereof.

[0092] In other embodiments, the second filter 52 can not be provided under the condition of ensuring the cleanliness of the external air.

[0093] Please refer to Figure 1 and Figure 4 In some embodiments, the second end of the second air inlet channel 50 is downstream of the second fan 21, and the rotary dehumidification system 100 further comprises a third fan 53 provided on the second air inlet channel 50.

[0094] The third fan 53 is used to make part of the external air enter the regeneration air duct 20 through the second air inlet channel 50, so as to mix with part of the external air entering through the first air inlet channel 40. Among them, the position of the third fan 53 is not limited by the application, for example, the third fan 53 can be provided upstream of the fourth heat exchanger 51, or downstream of the second filter 52, or between the second filter 52 and the fourth heat exchanger 51.

[0095] Based on the above scheme, the second fan 21 and the third fan 53 respectively send the external air into the regeneration air duct 20 through the first air inlet channel 40 and the second air inlet channel 50, which can reduce the power of the fan, is conducive to the miniaturization of the fan, and facilitates the effective use of multiple smaller spaces in the machine case by the fan.

[0096] In other embodiments, please refer to Figure 6The third air blower 53 is not provided, and the second end of the second air inlet duct 50 is upstream of the second air blower 21.

[0097] Please refer to Figure 1 and Figure 7 In some embodiments, the rotary dehumidification system 100 further comprises an air outlet duct 60 and a fifth heat exchanger 70. The first end of the air outlet duct 60 is connected to the air outlet of the regeneration zone 32, and the second end of the air outlet duct 60 is used to connect to the outside world. The fifth heat exchanger 70 is arranged on the air outlet duct 60 and the regeneration air duct 20.

[0098] The first end of the air outlet duct 60 is connected to the air outlet of the regeneration zone 32, and the second end of the air outlet duct 60 is used to connect to the outside world. It can be understood that the regeneration air after desorption of the regeneration zone 32 is discharged to the outside world through the air outlet duct 60.

[0099] The fifth heat exchanger 70 is arranged on the air outlet duct 60 and the regeneration air duct 20. It can be understood that the regeneration air after desorption of the regeneration zone 32 enters the fifth heat exchanger 70 through the air outlet duct 60, and the regeneration air before desorption of the regeneration zone 32 enters the fifth heat exchanger 70 through the regeneration air duct 20. Among them, the temperature of the regeneration air after desorption of the regeneration zone 32 is relatively high, and the temperature of the regeneration air before desorption of the regeneration zone 32 is relatively low. Therefore, the regeneration air after desorption of the regeneration zone 32 can be heat exchanged with the regeneration air before desorption of the regeneration zone 32, that is, the regeneration air before desorption of the regeneration zone 32 is heated, and the regeneration air after desorption of the regeneration zone 32 is cooled. Then, the regeneration air before desorption of the regeneration zone 32 is heated again by the third heat exchanger 22 for regeneration of the regeneration zone 32, further reducing the energy consumption of the third heat exchanger 22.

[0100] In some embodiments, the fifth heat exchanger 70 is a partition heat exchanger, that is, the partition heat exchanger has a first channel and a second channel arranged in parallel, and the first channel and the second channel are separated by a heat exchange wall. The fluids in the first channel and the second channel exchange heat through the heat exchange wall. For example, the first channel communicates with the air outlet duct 60, and the second channel communicates with the regeneration air duct 20.

[0101] As shown in Figure 2 In some embodiments, the moisture absorption zone 31 is a fan shape, and the corresponding central angle of the moisture absorption zone 31 is 180°-270°; the regeneration zone 32 is a fan shape, and the corresponding central angle of the regeneration zone 32 is 0°-90°; the preheating zone 33 is a fan shape, and the corresponding central angle of the preheating zone 33 is 0°-90°.

[0102] Optionally, the moisture absorption zone 31 corresponds to a central angle of 225°, the regeneration zone 32 corresponds to a central angle of 90°, and the preheating zone 33 corresponds to a central angle of 45°. Of course, the moisture absorption zone 31 can correspond to a central angle of 180°, the regeneration zone 32 corresponds to a central angle of 90°, and the preheating zone 33 corresponds to a central angle of 90°; or the moisture absorption zone 31 can correspond to a central angle of 270°, the regeneration zone 32 corresponds to a central angle of 45°, and the preheating zone 33 corresponds to a central angle of 45°.

[0103] The second aspect of the embodiments of the present application provides a laundry treatment apparatus. The laundry treatment apparatus can be a clothes dryer or a washer-dryer. The laundry treatment apparatus includes a cabinet, a laundry container 200, and the rotary dehumidification system 100 as described in the first aspect. The rotary dehumidification system 100 and the laundry container 200 are both arranged in the cabinet. The second heat exchanger 12 is located at an air inlet side of the laundry container 200, and the first heat exchanger 11 is located at an air outlet side of the laundry container 200.

[0104] It can be understood that the laundry container 200 can be a container for drying laundry or a container for washing and drying laundry. The laundry container 200 can be a drum structure or a pulsator structure.

[0105] The laundry treatment apparatus adopts any one or more of the embodiments of the rotary dehumidification system 100 described above, and thus has the beneficial effects of the embodiments described above, which will not be repeated here.

[0106] In some embodiments, the cabinet includes a base assembly that configures at least part of the drying air duct 10 and the regeneration air duct 20. In this way, the structure of the cabinet can be fully utilized, which is conducive to improving the compactness of the laundry treatment apparatus. Of course, in other embodiments, a pipeline can also be arranged in the cabinet, and at least part of the drying air duct 10 and the regeneration air duct 20 are configured by the pipeline.

[0107] The above embodiments are only used to illustrate the technical solutions of the present application, rather than limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacements for part of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application, and should be included in the protection scope of the present application.

Claims

1. A rotary dehumidification system, characterized by: The rotary dehumidification system comprises a first heat exchanger, a second heat exchanger, a rotary dehumidification device, a first fan, a second fan and a third heat exchanger, the rotary dehumidification device has a moisture absorption zone, a regeneration zone and a preheating zone; the first heat exchanger, the moisture absorption zone, the second heat exchanger and the first fan are configured to form a drying air duct, along the air direction of the drying air duct, the first heat exchanger is upstream of the second heat exchanger, the first heat exchanger is used for reducing the temperature of drying air in the drying air duct, and the second heat exchanger is used for increasing the temperature of drying air in the drying air duct; the preheating zone, the second fan, the third heat exchanger and the regeneration zone are configured to form a regeneration air duct, and the third heat exchanger is used for increasing the temperature of regeneration air in the regeneration air duct; wherein the air inlet of the preheating zone is used for allowing external air to enter, and the air outlet of the regeneration zone is used for allowing regeneration air to flow out.

2. The rotary dehumidification system of claim 1, wherein: The rotary dehumidification system further comprises a first air inlet duct, a first end of the first air inlet duct is used for connecting the external environment, and a second end of the first air inlet duct is connected to the air inlet of the preheating zone; a first filter is arranged on the first air inlet duct.

3. The rotary dehumidification system of claim 1, wherein: The rotary dehumidification system further comprises a second air inlet duct, a first end of the second air inlet duct is used for allowing external air to enter, and a second end of the second air inlet duct is connected to the regeneration air duct; along the air direction of the regeneration air duct, the second end of the second air inlet duct is upstream of the third heat exchanger.

4. The rotary dehumidification system of claim 3, wherein: A fourth heat exchanger is arranged on the second air inlet duct, and the fourth heat exchanger is used for increasing the temperature of external air in the second air inlet duct.

5. The rotary dehumidification system of claim 4, wherein: The first heat exchanger is a first evaporator, the second heat exchanger is a condenser, and the fourth heat exchanger is a second evaporator; the rotary dehumidification system further comprises a compressor and a throttling device, the second heat exchanger is connected between the outlet of the compressor and the inlet of the throttling device, and the first heat exchanger and the second heat exchanger are connected between the inlet of the compressor and the outlet of the throttling device.

6. The rotary dehumidification system of claim 3, wherein: A second filter is arranged on the second air inlet duct.

7. The rotary dehumidification system of claim 3 wherein: The second end of the second air inlet duct is downstream of the second fan, and the rotary dehumidification system further comprises a third fan arranged on the second air inlet duct.

8. The rotary dehumidification system of claim 1, wherein: The rotary dehumidification system further comprises an air outlet duct and a fifth heat exchanger, a first end of the air outlet duct is connected to the air outlet of the regeneration zone, and a second end of the air outlet duct is used for connecting the external environment; the fifth heat exchanger is arranged on the air outlet duct and the regeneration air duct.

9. The rotary dehumidification system of claim 8, wherein: The fifth heat exchanger is a partition wall type heat exchanger.

10. The rotary dehumidification system of any one of claims 1-9, wherein: The moisture absorption zone is a sector, and a corresponding central angle of the moisture absorption zone is 180°-270°; and / or, the regeneration zone is a sector, and a corresponding central angle of the regeneration zone is 0°-90°; and / or, the preheating zone is a sector, and a corresponding central angle of the preheating zone is 0°-90°.

11. The rotary dehumidification system of claim 10, wherein: The corresponding central angle of the moisture absorption zone is 225°, the corresponding central angle of the regeneration zone is 90°, and the corresponding central angle of the preheating zone is 45°. 12.A laundry treating apparatus, characterized by: The machine case comprises a base assembly which is configured to form at least part of the drying air duct and the regeneration air duct. 13.The laundry treating apparatus of claim 12, wherein, The machine case comprises a base assembly which is configured to form at least part of the drying air duct and the regeneration air duct.

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