Dehumidification structure and dehumidification rotating wheel

Abstract

The utility model discloses a dehumidification structure and a dehumidification rotating wheel. The dehumidification structure comprises a moisture absorption medium layer, a sericin layer surrounding the peripheral side of the moisture absorption medium layer, a first connecting assembly and a second connecting assembly with elastic recovery capacity. The first connecting assembly comprises a plurality of fixed connecting columns capable of conducting heat, and the two ends of each fixed connecting column are connected with the moisture absorption medium layer and the sericin layer correspondingly; the second connecting assembly comprises a plurality of springback connecting columns; each springback connecting column penetrates through the moisture absorption medium layer in the thickness direction of the moisture absorption medium layer, and the two ends of each springback connecting column are connected with the corresponding sericin layers on the two sides respectively; according to the dehumidification structure, the moisture absorption performance can be improved by effectively utilizing the expansion characteristic of the moisture absorption medium layer, the expansion of the moisture absorption medium layer can be restrained to avoid excessive expansion, and the dehumidification structure can be used in the dehumidification rotating wheel.

Description

Technical Field

[0001] This utility model relates to the field of dehumidification rotor technology, specifically to a dehumidification structure and a dehumidification rotor. Background Technology

[0002] The core component of a rotary dehumidifier is the dehumidifying rotor, which is made of glass fiber and heat-resistant ceramic materials as internal support, combined with a highly efficient moisture-absorbing medium (such as high-efficiency silica gel). This combination of a highly efficient desiccant and the rotor's honeycomb structure not only ensures a large surface area in contact with the air but also improves the rotor's moisture absorption efficiency and increases its moisture absorption capacity. The rotor can be cleaned by air purging to remove mechanical contaminants such as dust and oil from its surface.

[0003] The dehumidification rotor is divided into a treatment zone and a regeneration zone by a sealed system within the dehumidification section. The rotor rotates slowly at a speed of 8-10 revolutions per hour to ensure a continuous dehumidification process. When the treated air passes through the treatment zone of the rotor, the water vapor in it is adsorbed by the moisture-absorbing medium in the rotor. The water vapor undergoes a phase change and releases latent heat. The rotor also gradually becomes saturated due to the absorption of moisture. At this point, the treated air becomes dry and hot air due to the reduction of its own moisture and the release of latent heat. Meanwhile, in the regeneration zone, another stream of air first passes through a regeneration heater, becoming high-temperature air (generally 100-140℃), and then passes through the saturated rotor after moisture absorption, causing the adsorbed moisture in the rotor to evaporate, thereby restoring the rotor's dehumidification capacity. At the same time, the regeneration air becomes humid air due to the evaporation of moisture. Finally, the humid air is exhausted outdoors by a regeneration fan.

[0004] In practice, inorganic substances such as silica gel have a large moisture absorption capacity, but they also expand after absorbing moisture. To avoid excessive expansion after moisture absorption, which would affect the dehumidification effect or damage the dehumidification wheel and thus affect the life of the equipment, it is generally necessary to control their moisture absorption capacity. Currently, changing the wheel speed is often used to avoid excessive expansion of the moisture-absorbing medium, but this method has limited improvement effect and places high demands on the motor. Utility Model Content

[0005] The purpose of this invention is to overcome one or more deficiencies in the prior art and provide an improved dehumidification structure that can effectively utilize its expansion characteristics to increase moisture absorption performance, while also restraining its expansion to avoid excessive expansion.

[0006] This utility model also provides a dehumidifying rotor that includes the above-mentioned dehumidification structure.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A dehumidification structure includes a moisture-absorbing medium layer, a sericin layer surrounding the outer periphery of the moisture-absorbing medium layer, a first connecting component, and a second connecting component having elastic recovery capability.

[0009] The first connecting component includes a plurality of heat-conducting fixed connecting posts, and both ends of each fixed connecting post are respectively connected to the moisture-absorbing medium layer and the sericin layer;

[0010] The second connecting component includes a plurality of spring-loaded connecting posts; each of the spring-loaded connecting posts passes through the moisture-absorbing medium layer from the thickness direction of the moisture-absorbing medium layer, and its two ends are respectively connected to the corresponding sericin layers on both sides.

[0011] In this invention, the hygroscopic medium, after absorbing water and expanding, radially compresses and rebounds the connecting column, thereby expanding the thickness space and obtaining a larger water storage space. The rebound connecting column also provides rapid recovery capability.

[0012] In some embodiments of this utility model, the spring-loaded connecting post is arranged parallel to the fixed connecting post.

[0013] In some embodiments of this utility model, the spring-loaded connecting columns are arranged in parallel to each other.

[0014] According to some preferred aspects of the present invention, the first connecting component includes two sets of sub-connecting components arranged sequentially along the thickness direction of the moisture-absorbing medium layer, and the two sets of sub-connecting components are arranged symmetrically along the moisture-absorbing medium layer.

[0015] According to some preferred aspects of the present invention, each group of sub-connecting components includes n fixed connecting posts arranged in parallel with each other, and the spring-loaded connecting post is inserted between two adjacent fixed connecting posts.

[0016] In some embodiments of this utility model, the sub-connecting component is divided into x groups of fixed connecting column arrays by multiple spring-loaded connecting columns, each group of fixed connecting column arrays includes y parallel fixed connecting columns, where n is the product of x and y, and both x and y are greater than or equal to 2.

[0017] According to some preferred aspects of this utility model, the fixed connecting column is made of graphene and / or thermally conductive plastic.

[0018] According to some preferred aspects of this utility model, the moisture-absorbing material of the moisture-absorbing medium layer is silica gel and / or zeolite molecular sieve.

[0019] According to some preferred aspects of this utility model, the moisture-absorbing medium layer is provided with a plurality of openings penetrating along its own thickness direction, the number of openings corresponding one-to-one with the number of spring-loaded connecting posts, the spring-loaded connecting posts being inserted into the openings, and the difference between the outer diameter of the spring-loaded connecting post and the size of the opening is within 1%, for example, within 0.5%, or even the same.

[0020] According to some preferred aspects of the present invention, a water groove is provided on the surface of the spring-loaded connecting column, and the water groove is used to connect the two sides of the moisture-absorbing medium layer along its own thickness direction.

[0021] According to some preferred aspects of this utility model, the spring-loaded connecting column has a hollow structure.

[0022] According to some preferred aspects of this utility model, the material of the spring-loaded connecting post is rubber.

[0023] In some embodiments of this invention, the sericin layer is composed of silk fibroin nanofibers.

[0024] Another technical solution provided by this utility model: a dehumidifying wheel, the dehumidifying wheel including a supporting carrier and a moisture-absorbing layer loaded on the supporting carrier, the moisture-absorbing layer including the dehumidifying structure described above.

[0025] Due to the application of the above technical solution, this utility model has the following advantages compared with the prior art:

[0026] Addressing the shortcomings of existing technologies regarding excessive expansion of the absorbent medium during use in a rotating wheel, or the deficiencies in methods designed to prevent excessive expansion, the inventors of this invention, through extensive experimental research, innovatively propose the following: By installing fixed connecting pillars between the sericin layer and the absorbent medium layer, a sufficient distance is maintained between them, preventing the sericin layer from detaching and affecting the overall absorbency. Simultaneously, sericin layers are connected to both sides of the absorbent medium layer, enveloping and surrounding it, effectively filtering impurities and storing a certain amount of moisture. Several fixed connecting pillars distributed between the sericin and absorbent medium layers ensure a smooth surface for the dehumidification layer, and controllable expansion after moisture absorption. Furthermore, the swelling effect of the sericin layer after water absorption allows the absorbent layer to retain sufficient moisture, thereby increasing the absorbency threshold in conjunction with the absorbent medium. On the one hand, water vapor is conducted to the moisture-absorbing medium layer through the sericin layer on one side. After absorbing moisture, the moisture-absorbing medium expands, and the tension in the axial direction causes the spring-loaded connecting column to be radially compressed, thus deforming and elongating in the length direction. This pushes the sericin layer outward and indirectly pulls the moisture-absorbing medium to stretch in the thickness direction, expanding the moisture absorption space and improving the adsorption performance. Furthermore, when the absorbed moisture is saturated, it enters the regeneration zone. While the high-temperature gas removes moisture during regeneration, the deformation recovery force of the spring-loaded connecting column itself pulls the sericin layers that have been pushed away on both sides to retract, further improving the moisture removal rate and thus improving the regeneration efficiency of the dehumidifying wheel. In particular, since the fixed connecting column can conduct heat, it can not only play a supporting and connecting role in force transmission, but also effectively heat the moisture-absorbing medium in the regeneration zone through its good thermal conductivity, which is conducive to desorption and regeneration and helps to reduce the desorption temperature. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the dehumidification structure in an embodiment of the present invention;

[0028] In the attached diagram, the following labels are used: 1. Moisture-absorbing medium layer; 2. Sesame layer; 3. Fixed connecting post; 4. Resilient connecting post; 41. Water tank. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. In the description of the present utility model, the reference to "embodiment", "one embodiment" or "other embodiments" indicates that a specific feature, structure or characteristic described in conjunction with the embodiment is included in at least some embodiments, but not necessarily all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0031] This invention aims to provide a highly absorbent dehumidification structure for a dehumidifying impeller. By radially compressing the spring-loaded connecting column after the absorbing moisture expands, the thickness space is increased, resulting in a larger water storage capacity. The spring-loaded connecting column also provides rapid recovery capability. This effectively utilizes the expansion characteristics to increase moisture absorption performance while restraining the expansion to prevent excessive expansion.

[0032] See Figure 1 As shown, this example provides a dehumidification structure, which includes a moisture-absorbing medium layer 1, a sericin layer 2 surrounding the outer periphery of the moisture-absorbing medium layer 1, a first connecting component, and a second connecting component with elastic recovery capability. The first connecting component includes multiple heat-conducting fixed connecting posts 3, each of which is connected to the moisture-absorbing medium layer 1 and the sericin layer 2 at both ends, ensuring a gap between the sericin layer 2 and the moisture-absorbing medium layer 1 and preventing the sericin layer 2 from detaching and affecting the overall moisture absorption effect. The second connecting component includes multiple spring-loaded connecting posts 4, each of which passes through the moisture-absorbing medium layer 1 from the thickness direction and is connected to the corresponding sericin layer 2 on both sides at both ends. The sericin layer 2 on both sides covers and surrounds the moisture-absorbing medium layer 1, which can filter impurities and can store a certain amount of moisture. The fixed connecting posts 3 can be regularly and densely distributed between the sericin layer 2 and the moisture-absorbing medium layer 1, which is more conducive to making the overall surface of the dehumidification layer flat and the expansion effect after moisture absorption controllable.

[0033] The spring-loaded connecting post 4 passes through the moisture-absorbing medium layer 1 from the thickness direction, and its two ends are respectively connected to the sericin layer 2 on both sides. Several spring-loaded connecting posts 4 can be evenly distributed in the width direction of the moisture-absorbing medium layer 1. The spring-loaded connecting post 4 can ensure the distance between the sericin layer 2 and the moisture-absorbing medium layer 1, avoid adhesion, and prevent excessive moisture in the moisture-absorbing medium layer 1 from flowing to the sericin layer 2, thereby preventing moisture outflow.

[0034] In this example, the spring-loaded connecting post 4 is arranged in parallel with the fixed connecting post 3, and each spring-loaded connecting post 4 is arranged in parallel with each other.

[0035] The first connecting component includes two sets of sub-connecting components arranged sequentially along the thickness direction of the moisture-absorbing medium layer 1, and the two sets of sub-connecting components are symmetrically arranged along the moisture-absorbing medium layer 1; each set of sub-connecting components includes n fixed connecting posts 3 arranged in parallel with each other, and spring-loaded connecting posts 4 are inserted between two adjacent fixed connecting posts 3. Further, the sub-connecting component is divided into x sets of fixed connecting post arrays by multiple spring-loaded connecting posts 4, and each set of fixed connecting post arrays includes y parallel fixed connecting posts 3, where n is the product of x and y, and x and y are both greater than or equal to 2.

[0036] The fixed connecting column 3 is made of graphene and / or thermally conductive plastic. Preferably, graphene is used. Graphene's strength and toughness enhance and maintain the mechanical strength and stability of the dehumidifying impeller. Its high specific surface area and molecular adsorption capacity effectively adsorb water molecules in the air, thereby improving the dehumidification efficiency of the dehumidifying impeller. Furthermore, since the sericin layer 2 connected to the fixed connecting column needs to play a certain filtering role, graphene can effectively inhibit bacteria and mold growth within the dehumidifying impeller (it is generally believed that when graphene comes into contact with bacterial cell membranes, charge transfer or reactive oxygen species (ROS) are generated, triggering free radical reactions that damage the bacterial membrane structure and important biomolecules), thus ensuring the long-term healthy operation of the dehumidifying impeller. In other embodiments, odorless and non-toxic lightweight materials such as polypropylene can be used, as long as they can withstand the high temperatures of the regeneration zone and do not emit toxic gases. In addition, graphene can not only play a supporting and connecting role in force transmission, but also, through its good thermal conductivity, enable the hygroscopic medium 1 to be effectively heated in the regeneration zone, thereby carrying out desorption and regeneration, which is beneficial to reducing the desorption temperature.

[0037] The moisture-absorbing medium layer 1 is made of silica gel and / or zeolite molecular sieve. In this example, silica gel with a microporous structure is preferably used as the moisture-absorbing medium layer 1. The moisture-absorbing medium layer 1 has multiple openings extending along its thickness direction. The number of openings corresponds one-to-one with the number of spring-loaded connecting posts 4. The spring-loaded connecting posts 4 are inserted into the openings, and the difference between the outer diameter of the spring-loaded connecting post 4 and the size of the opening is within 1%, for example, within 0.5%, or even the same. A water groove 41 is formed on the surface of the spring-loaded connecting post 4. The water groove 41 is used to connect the two sides of the moisture-absorbing medium layer 1 along its thickness direction. The water groove 41 allows water to be guided from one side of the moisture-absorbing medium 1 to the other side without affecting the deformation of the moisture-absorbing medium 1, thereby improving the moisture absorption rate of the moisture-absorbing medium 1.

[0038] In this example, the spring-loaded connecting post has a hollow structure and is made of rubber. In other embodiments, the spring-loaded connecting post 4 can also be made of other lightweight elastic materials.

[0039] Because the spring-loaded connecting post 4 has spring-loaded characteristics, when the spring-loaded connecting post 4 is subjected to radial compression force, it will elongate in the length direction. This is because the rubber material stores elastic energy when it is compressed by external force, and then releases it when the external force disappears or at a position where the external force is weaker. Furthermore, the spring-loaded connecting post 4 has an internal hollow structure, that is, the hollow structure setting can improve its deformation capacity in the length direction after being compressed.

[0040] Meanwhile, although the moisture-absorbing medium layer 1 naturally expands in its thickness direction after absorbing moisture, its relatively small natural expansion in the thickness direction is far less than the pushing and pulling effect in the large end-face direction due to the volume of the dehumidifying wheel and its large end-face structure. Therefore, the spring-loaded connecting column 4 transforms the inward pushing and pulling effect in the end-face direction of the moisture-absorbing medium layer 1 into an expansion in the thickness of the moisture-absorbing medium layer 1, effectively expanding the moisture absorption space and thus improving the adsorption performance. When the absorbed moisture is saturated, it enters the regeneration zone. While the high-temperature gas removes moisture during regeneration, the deformation recovery force of the spring-loaded connecting column 4 itself pulls the sericin layers 2 that have been pushed away on both sides back, further improving the moisture removal rate and thus improving the regeneration efficiency of the dehumidifying wheel.

[0041] In this example, the sericin layer 2 is composed of silk fibroin nanofibers. Silk fibroin nanofibers can be produced using existing techniques or obtained commercially. For example, they are preferably prepared from silkworm silk through electrospinning, possessing excellent mechanical properties, water retention capacity, and good water vapor permeability. Silk fibroin nanofibers have a very high specific surface area, thus they can absorb a large amount of water and have a strong water retention capacity.

[0042] For example, it can be prepared according to CN114457447B. Alternatively, it can be prepared as follows: after boiling and rinsing silk, fibroin is obtained. The fibroin is dissolved in lithium bromide solution. After complete dissolution, it is dialyzed and filtered, and then freeze-dried to obtain lyophilized fibroin. The lyophilized fibroin is dissolved in formic acid solution and magnetically stirred to prepare a silk tow protein solution. The solution is then prepared into a silk fibroin nanofiber surface layer by electrospinning.

[0043] In other embodiments, silk nanofibers can also be mixed with polyurethane, epoxy resin, etc., to prepare tear-resistant composite fiber materials.

[0044] It should also be noted that, generally, the temperature in the regeneration zone is around 140℃. Silk fibroin nanofibers can maintain their structure and properties at a high temperature of 300℃, but they will begin to decompose at a high temperature of around 400℃, during which their structure and properties will change and their performance will decrease. Therefore, silk fibroin nanofibers meet the application environment requirements of dehumidification rotors.

[0045] The preparation method of the dehumidification structure in this example includes the following steps:

[0046] (1) Prepare the dehumidifying medium (hygroscopic medium) into a rotating body according to the mold, and reserve openings;

[0047] (2) Pass the spring-loaded connecting post 4 through the surface of the rotating wheel body and bond the fixed connecting post 3 so that the end faces of the fixed connecting post 3 and the spring-loaded connecting post 4 are flush.

[0048] (3) Adhere the silk glue layer 2 to the corresponding side end face of the spring-loaded connecting post 4 and the fixing component 3.

[0049] It should be noted that the connection between the sericin layer 2 and the fixed connecting post 3, such as the graphene post, can be achieved by bonding with an active agent or by hot pressing.

[0050] Specifically, the following method can be used: place the graphene pillars and the sericin layer together, and then heat and fuse them together using a hot glue gun or similar tool.

[0051] Alternatively, chemical bonding can be used: for example, coating the surface of the graphene pillar with appropriate chemicals to react with the chemical bonds on the sericin layer, thereby fixing them together, or preparing graphene pillars with surfactants on their surfaces to adsorb onto the sericin layer.

[0052] There are two types of surfactants that can be used: anionic surfactants and cationic surfactants. Anionic surfactants have good wetting and foaming properties, but their bonding effect on silk fibroin fibers is not very good. Cationic surfactants, on the other hand, can be completely compatible with hydrophilic silk fibroin fibers. Cationic surfactants that can be selected include acrylate cationic surfactants, alkanolamine cationic surfactants, and tetracarbazylamine cationic surfactants. These cationic surfactants all have good adhesion and hydrophilicity, and can effectively fix the graphene pillars to the sericin layer.

[0053] Alternatively, graphene pillars and sericin layers can be placed together, then pressurized with high pressure and high temperature to cause a certain degree of melting on the surface, and then allowed to cool and solidify together.

[0054] As an optional implementation, the edge of the dehumidification structure is fixedly connected to the inner wall of the dehumidification wheel. The sericin layer 2 is preferably connected to the wheel body in a ring-shaped sealed manner, such as by adhesive bonding, rather than by multi-point connection. The edge of the sericin layer 2 is fixed, which can limit its degree of freedom of swelling, thereby controlling the swelling effect and avoiding excessive free expansion that would cause irreversible changes in its performance.

[0055] This example also provides a dehumidifying impeller, which includes a support carrier and a moisture-absorbing layer loaded on the support carrier, the moisture-absorbing layer including the dehumidifying structure described above.

[0056] In summary, this invention innovatively incorporates fixed connecting columns between the sericin layer and the moisture-absorbing medium layer, ensuring a proper spacing between them and preventing the sericin layer from detaching and affecting the overall moisture absorption effect. Simultaneously, sericin layers are connected to both sides of the moisture-absorbing medium layer, enveloping and surrounding it to filter impurities and store a certain amount of moisture. The distribution of several fixed connecting columns between the sericin layer and the moisture-absorbing medium layer ensures a smooth surface for the dehumidification layer and controllable expansion after moisture absorption. Furthermore, on one hand, the swelling effect of the sericin layer after water absorption allows the moisture-absorbing layer to retain water after absorbing sufficient moisture, thereby increasing the moisture absorption threshold in conjunction with the moisture-absorbing medium. On the other hand, water vapor is transferred to the moisture-absorbing medium layer through one side of the sericin layer. After absorbing moisture, the absorbent medium expands. The tension in the axial direction causes the resilient connecting column to be radially compressed, resulting in its deformation and elongation in the length direction. This pushes the sericin layer outward and indirectly stretches the absorbent medium in the thickness direction, expanding the moisture absorption space and improving adsorption performance. Furthermore, when the absorbent medium is saturated with moisture, it enters the regeneration zone. During regeneration, high-temperature gas is used to remove moisture, and the deformation recovery force of the resilient connecting column itself pulls the sericin layers pushed away on both sides back, further increasing the moisture removal rate and thus improving the regeneration efficiency of the dehumidifying wheel. In particular, since the fixed connecting column can conduct heat, it not only plays a supporting and connecting role in force transmission, but also allows the absorbent medium to be effectively heated in the regeneration zone through its good thermal conductivity, which is beneficial for desorption and regeneration and helps to reduce the desorption temperature.

[0057] The above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be construed as limiting the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

[0058] The endpoints and any values ​​of the ranges disclosed herein are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of the various ranges, the endpoint values ​​of the various ranges and individual point values, and individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed herein.

Claims

1. A dehumidification structure, characterized in that, The dehumidification structure includes a moisture-absorbing medium layer, a sericin layer surrounding the outer periphery of the moisture-absorbing medium layer, a first connecting component, and a second connecting component with elastic recovery capability; The first connecting component includes a plurality of heat-conducting fixed connecting posts, and both ends of each fixed connecting post are respectively connected to the moisture-absorbing medium layer and the sericin layer; The second connecting component includes a plurality of spring-loaded connecting posts; each of the spring-loaded connecting posts passes through the moisture-absorbing medium layer from the thickness direction of the moisture-absorbing medium layer, and its two ends are respectively connected to the corresponding sericin layers on both sides.

2. The dehumidification structure according to claim 1, characterized in that, The spring-loaded connecting post is arranged parallel to the fixed connecting post; and / or, each of the spring-loaded connecting posts is arranged parallel to each other.

3. The dehumidification structure according to claim 1, characterized in that, The first connecting component includes two sets of sub-connecting components arranged sequentially along the thickness direction of the moisture-absorbing medium layer, and the two sets of sub-connecting components are arranged symmetrically along the moisture-absorbing medium layer.

4. The dehumidification structure according to claim 3, characterized in that, Each sub-connection assembly includes n fixed connecting posts arranged in parallel with each other, and the spring-loaded connecting post is inserted between two adjacent fixed connecting posts.

5. The dehumidification structure according to claim 4, characterized in that, The sub-connection component is divided into x groups of fixed connection column arrays by multiple spring-loaded connection columns. Each group of fixed connection column arrays includes y parallel fixed connection columns, where n is the product of x and y, and both x and y are greater than or equal to 2.

6. The dehumidification structure according to claim 1, characterized in that, The fixed connecting column is made of graphene and / or thermally conductive plastic; and / or, the moisture-absorbing material of the moisture-absorbing medium layer is silica gel and / or zeolite molecular sieve.

7. The dehumidification structure according to claim 1, characterized in that, The moisture-absorbing medium layer is provided with a plurality of openings that penetrate along its own thickness direction. The number of openings corresponds one-to-one with the number of spring-loaded connecting posts. The spring-loaded connecting posts are inserted into the openings, and the difference between the outer diameter of the spring-loaded connecting post and the size of the opening is within 1%.

8. The dehumidification structure according to claim 1, characterized in that, The surface of the spring-loaded connecting post is provided with a water groove, which is used to connect the two sides of the moisture-absorbing medium layer along its own thickness direction; and / or, the spring-loaded connecting post is a hollow structure.

9. The dehumidification structure according to claim 1, characterized in that, The material of the spring-loaded connecting post is rubber; and / or, the sericin layer is composed of silk nanofibers.

10. A dehumidifying impeller, the dehumidifying impeller comprising a supporting carrier and a moisture-absorbing layer loaded on the supporting carrier, characterized in that, The moisture-absorbing layer includes the dehumidification structure described in any one of claims 1-9.

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