A silica gel rotary wheel with a variable dehumidification area

Abstract

The present invention discloses a silica gel rotary wheel with a variable dehumidification area, comprising: a wheel shaft, a wheel body, and a dehumidification component disposed between the wheel shaft and the wheel body. The raw material of the dehumidification component includes silica gel, and the dehumidification component includes a moisture absorption wheel and a moisture absorption ring. The silica gel rotary wheel further includes a plurality of support columns and an adjustment ring that are arranged at equal intervals around the wheel shaft. One end of the support column is connected to the outer wall of the wheel shaft, and the other end is connected to the inner wall of the wheel body. The support columns respectively pass through the moisture absorption wheel and the moisture absorption ring. The extending direction of the support column is perpendicular to the extending direction of the wheel shaft. The adjustment ring is slidably disposed on each support column and can expand or contract during the sliding process. The wheel shaft, the moisture absorption wheel, the adjustment ring, the moisture absorption ring, and the wheel body are arranged in sequence from the inside out. The silica gel rotary wheel of the present invention can control the moisture absorption and regeneration effects through density changes starting from physical form changes, and has a self-cleaning function.

Description

Technical Field

[0001] The present invention relates to the field of dehumidifying wheels, and particularly to a silica gel wheel with a variable dehumidification area. Background Art

[0002] Dehumidifying wheels are mainly used to dry gases such as air in industrial or commercial applications that require low humidity. Inside the dehumidification section of the dehumidifying wheel, a sealing system divides it into a treatment area and a regeneration area. The dehumidifying wheel rotates slowly at a speed of 8 - 10 revolutions per hour to ensure that the entire dehumidification process is continuous. When the treated air passes through the treatment area of the wheel, the water vapor in it is adsorbed by the moisture-absorbing medium in the wheel. At the same time, the water vapor undergoes a phase change and releases latent heat. The wheel gradually tends to be saturated due to absorbing a certain amount of moisture. At this time, the treated air becomes dry and hot air due to the reduction of its own moisture and the release of latent heat. At the same time, in the regeneration area, another stream of air first passes through a regeneration heater and then becomes high-temperature air (generally 100 - 140 °C) and passes through the saturated wheel after absorbing moisture, causing the adsorbed moisture in the wheel to evaporate, thereby restoring the dehumidification ability of the wheel. At the same time, the regeneration air becomes wet air due to the evaporation of moisture. However, the wet air is then discharged outdoors through a regeneration fan.

[0003] The dehumidification performance of the dehumidifying wheel mainly depends on the moisture-absorbing performance of the moisture-absorbing material and the amount of the moisture absorbent attached to the wheel. Currently, the commonly used moisture absorbents for dehumidifying wheels include silica gel, lithium chloride, and molecular sieve. Among them, the dehumidifying wheel with silica gel as the moisture absorbent has a high cost performance and a wide application range, but its moisture-absorbing performance needs to be improved, and the regeneration temperature is relatively high, generally 140 °C, which is inconvenient to use. At the same time, the regeneration efficiency and effect need to be enhanced. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a new silica gel wheel that can control the moisture absorption and regeneration effects through density changes starting from physical form changes.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is:

[0006] A silica gel wheel with a variable dehumidification area, the silica gel wheel includes: a wheel shaft, a wheel body, and a dehumidification component disposed between the wheel shaft and the wheel body. The raw material of the dehumidification component includes silica gel, wherein:

[0007] The dehumidification component includes a moisture-absorbing wheel and a moisture-absorbing ring;

[0008] The silica gel runner further includes a plurality of support columns and an adjustment ring that are arranged at equal intervals around the axle. One end of each support column is connected to the outer wall of the axle, and the other end is connected to the inner wall of the runner body. The support columns respectively pass through the moisture absorption wheel and the moisture absorption ring; the extending direction of the support columns is perpendicular to the extending direction of the axle.

[0009] The adjustment ring is slidably arranged on each support column and can expand or contract during the sliding process.

[0010] The axle, the moisture absorption wheel, the adjustment ring, the moisture absorption ring, and the runner body are arranged in sequence from the inside to the outside.

[0011] According to some preferred aspects of the present invention, the adjustment ring includes a plurality of adjustment ring segments and a plurality of telescopic sleeves. The adjustment ring segments are slidably arranged on the support columns, and two adjacent adjustment ring segments are connected by the telescopic sleeves. The telescopic sleeves are located between two adjacent support columns, and the plurality of adjustment ring segments and the plurality of telescopic sleeves are enclosed and connected to form the adjustment ring.

[0012] Furthermore, the silica gel runner further includes a driving mechanism for driving the adjustment ring to move and expand or contract.

[0013] According to some preferred aspects of the present invention, the driving mechanism includes a plurality of driving members. Each driving member corresponds to one adjustment ring segment, and the driving member is in transmission connection with the adjustment ring segment and drives the adjustment ring segment to move.

[0014] According to some preferred and specific aspects of the present invention, the support column is of a hollow structure and has pores extending along its own extending direction on both sides. The driving member is arranged in the hollow structure of the support column and passes through the pores to be in transmission connection with the adjustment ring segment.

[0015] According to some preferred and specific aspects of the present invention, the driving member is arranged outside the runner body;

[0016] The driving member sequentially passes through the runner body, the moisture absorption ring and is in transmission connection with the adjustment ring segment, or,

[0017] The driving member is in transmission connection with the adjustment ring segment from the outside of the moisture absorption ring.

[0018] According to some preferred aspects of the present invention, the density of the moisture absorption wheel is different from the density of the moisture absorption ring, realizing a density differential setting.

[0019] According to a specific aspect of the present invention, the density of the moisture absorption ring is 1.5 - 2 times the density of the moisture absorption wheel.

[0020] According to some preferred aspects of the present invention, the moisture absorption wheel and the moisture absorption ring respectively have a honeycomb structure.

[0021] According to some preferred aspects of the present invention, the silica gel runner further includes a plurality of light sensors regularly arranged along the length direction of the support column and used for monitoring the moisture absorption wheel and / or the moisture absorption ring. The plurality of light sensors have the same orientation, and the orientation is parallel to the axial direction of the wheel body.

[0022] According to the present invention, the extension lines of the wheel shafts respectively coincide with the center lines of the moisture absorption wheel, the moisture absorption ring, the adjustment ring, and the wheel body.

[0023] According to some preferred aspects of the present invention, the preparation method of the moisture absorption wheel or the moisture absorption ring includes the following steps:

[0024] (1) Add a silicate solution, polyvinyl alcohol, modified polyacrylonitrile, and vinyl chloride to the base paper, mix and stir to obtain a paper fiber solution, and then mix in an acid solution to obtain a fiber solution;

[0025] (2) Pour the fiber solution into a mold and prepare it layer by layer into a rough product;

[0026] (3) Heat-process the rough product and then cool it down, and immerse it in a lithium chloride solution until it is shaped;

[0027] When the mold is a wheel body mold, a moisture absorption wheel is made; when the mold is a ring body mold, a moisture absorption ring is made.

[0028] According to some preferred aspects of the present invention, in step (1), the base paper is selected from inorganic fibers and / or organic fibers.

[0029] According to some preferred aspects of the present invention, in step (1), the acid solution is a combination of one or more selected from metasilicic acid, hydrofluoric acid, and acetic acid.

[0030] According to some preferred aspects of the present invention, in step (1), the silicate solution is added to the base paper at 80 - 100 °C and stirred.

[0031] According to some specific aspects of the present invention, in step (2), the mold is a layered shaping mold, specifically a layered wheel body shaping mold or a layered ring body shaping mold.

[0032] According to some preferred aspects of the present invention, in step (3), when preparing the moisture absorption wheel, the temperature of the heat treatment is 150 - 210 °C; when preparing the moisture absorption ring, the temperature of the heat treatment is 180 - 220 °C.

[0033] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art:

[0034] The present invention innovatively sets the dehumidification component to include a moisture absorption wheel and a moisture absorption ring, and simultaneously sets an adjustable ring that can be slidably arranged. Through the setting of this adjustable ring, the densities of the moisture absorption wheel and the moisture absorption ring can be made different, so as to achieve different moisture absorption and regeneration effects. Specifically, the moisture absorption wheel or the moisture absorption ring can be compressed by moving the adjustable ring, and then the other one can be released to obtain the effect of fine-tuning the density, increasing the adjustability of the moisture absorption and regeneration effects of the entire rotating wheel. At the same time, the adjustable ring can also vibrate rapidly back and forth to drive the moisture absorption wheel and the moisture absorption ring to vibrate, thereby cleaning the pores inside the rotating wheel and obtaining a self-cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

[0036] Figure 1 It is a schematic structural diagram of a silica gel rotating wheel with a variable dehumidification area according to an embodiment of the present invention;

[0037] Figure 2 It is a schematic structural diagram of the setting of the adjustable ring according to an embodiment of the present invention;

[0038] Figure 3 It is a process flow chart for the preparation of the moisture absorption wheel and the moisture absorption ring according to an embodiment of the present invention;

[0039] Among them, 11, wheel body; 12, support column; 13, adjustable ring; 131, adjustable ring section; 132, telescopic sleeve; 14, wheel shaft; 21, moisture absorption wheel; 22, moisture absorption ring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be described in detail below in conjunction with the drawings and specific embodiments. Many specific details are set forth in the following description in order to fully understand the present invention. However, the present invention can be implemented in many other ways different from those described herein. Those skilled in the art can make similar improvements without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0041] In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0042] In the present invention, unless otherwise clearly specified or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be construed broadly. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0043] In the invention, unless otherwise clearly specified or limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0044] It should be noted that when an element is referred to as "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time.

[0045] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0046] As Figures 1 to 2 shown, this example provides a silica gel rotary wheel with a variable dehumidification zone. The silica gel rotary wheel includes: a wheel shaft 14, a wheel body 11, and a dehumidification component disposed between the wheel shaft 14 and the wheel body 11. The raw material of the dehumidification component includes silica gel, wherein: the dehumidification component includes a moisture absorption wheel 21 and a moisture absorption ring 22; the silica gel rotary wheel further includes a plurality of support columns 12 and an adjustment ring 13 that are arranged at equal intervals around the wheel shaft 14. One end of the support column 12 is connected to the outer wall of the wheel shaft 14, and the other end is connected to the inner wall of the wheel body 11. The support columns 12 respectively pass through the moisture absorption wheel 21 and the moisture absorption ring 22; the extending direction of the support column 12 is perpendicular to the extending direction of the wheel shaft 14; the adjustment ring 13 is slidably disposed on each support column 12 and can expand or contract during the sliding process; the wheel shaft 14, the moisture absorption wheel 21, the adjustment ring 13, the moisture absorption ring 22, and the wheel body 11 are arranged in sequence from the inside to the outside.

[0047] The above-mentioned dehumidifying component is set to include a moisture absorption wheel 21 and a moisture absorption ring 22, and an adjusting ring 13 that can be slidably arranged is also set. Through the setting of the adjusting ring 13, the densities of the moisture absorption wheel 21 and the moisture absorption ring 22 can be made different, so as to achieve different moisture absorption and regeneration effects. Specifically, the moisture absorption wheel 21 or the moisture absorption ring 22 can be compressed by moving the adjusting ring 13, and then the other one can be released to obtain the effect of fine density adjustment, increasing the adjustability of the moisture absorption and regeneration effects of the entire rotating wheel; at the same time, the adjusting ring 13 can also be quickly reciprocated to drive the moisture absorption wheel 21 and the moisture absorption ring 22 to vibrate, so as to clean the pores inside the rotating wheel and obtain a self-cleaning effect.

[0048] In this example, as Figure 2 shown, the adjusting ring 13 includes a plurality of adjusting ring segments 131 and a plurality of telescopic sleeves 132. The adjusting ring segments 131 are slidably arranged on the support columns 12, and two adjacent adjusting ring segments 131 are connected by telescopic sleeves 132. The telescopic sleeves 132 are located between two adjacent support columns 12. The plurality of adjusting ring segments 131 and the plurality of telescopic sleeves 132 are enclosed and connected to form the adjusting ring 13. During the process of the adjusting ring 13 sliding on the support columns 12 along the extending direction of the support columns 12, relative displacement occurs between the adjusting ring segments 131 and the telescopic sleeves 132 to realize the overall expansion or contraction. The adjusting ring segments 131 and the telescopic sleeves 132 can relatively slide, and this way can maintain excellent self-sealing performance and long service life.

[0049] In practical applications, the silica gel rotating wheel further includes a driving mechanism for driving the adjusting ring 13 to move and expand or contract. Through this driving mechanism, the automatic and expected movement of the adjusting ring 13, even reciprocating vibration, can be realized.

[0050] Specifically, the driving mechanism includes a plurality of driving parts (not shown, for example, components such as cylinders or motors, etc.). Each driving part corresponds to an adjusting ring segment 131. The driving part is in transmission connection with the adjusting ring segment 131 and drives the adjusting ring segment 131 to move, so as to drive the adjusting ring 13 to move. Further, the driving parts can be arranged in the following two ways: The first way: The support column 12 is a hollow structure and has pores extending along its own extending direction on both sides. The driving part is arranged in the hollow structure of the support column 12 and passes through the pores to be in transmission connection with the adjusting ring segment 131; The second way: The driving part is arranged outside the wheel body 11; The driving part sequentially passes through the wheel body 11, the moisture absorption ring 22 and the adjusting ring segment 131 to be in transmission connection, or the driving part is in transmission connection with the adjusting ring segment 131 from the outside of the moisture absorption ring 22.

[0051] In this example, the density of the moisture absorption wheel 21 and the density of the moisture absorption ring 22 can be different, achieving a differential density setting. This difference can be present from the initial preparation or can be manifested as different after adjustment by the adjustment ring 13. In a specific case, the density of the moisture absorption ring 22 can be set to 1.5 - 2 times the density of the moisture absorption wheel 21.

[0052] In this example, the moisture absorption wheel 21 and the moisture absorption ring 22 respectively have a honeycomb structure. This structure can provide more pores to obtain a better moisture absorption effect, and this structure is also convenient for regeneration.

[0053] In this example, the silica gel runner further includes a plurality of photosensors regularly arranged along the length direction of the support column 12 and used to monitor the moisture absorption wheel and / or the moisture absorption ring. The plurality of photosensors have the same orientation, and their orientation is parallel to the axial direction of the wheel body. It should be realized that the setting of the photosensors can accurately monitor the honeycomb density of the runner.

[0054] Specifically, as Figure 1 shown, the extension lines of the wheel shaft 14 respectively coincide with the center lines of the moisture absorption wheel 21, the moisture absorption ring 22, the adjustment ring 13, and the wheel body 11.

[0055] As Figure 3 shown, it shows the approximate preparation process of the moisture absorption wheel 21 or the moisture absorption ring 22. Specifically, the preparation method of the moisture absorption wheel 21 or the moisture absorption ring 22 can include the following steps:

[0056] (1) Add a silicate solution, polyvinyl alcohol, modified polyacrylonitrile, and vinyl chloride to the base paper, mix and stir to obtain a paper fiber solution, and then mix in an acid solution to obtain a fibrous solution;

[0057] (2) Pour the fibrous solution into a mold and prepare it layer by layer into a rough product;

[0058] (3) After hot processing the rough product, cool it down and immerse it in a lithium chloride solution until it is shaped;

[0059] When the mold is a wheel body mold, a moisture absorption wheel is made; when the mold is a ring body mold, a moisture absorption ring is made.

[0060] Among them, in step (1), the base paper is selected from inorganic fibers and / or organic fibers, the acid solution is a combination of one or more selected from metasilicic acid, hydrofluoric acid, and acetic acid, and the silicate solution is added to the base paper at 80 - 100 °C and stirred.

[0061] In step (2), the mold is a layered shaping mold, specifically it can be a layered wheel body shaping mold or a layered ring body shaping mold.

[0062] In step (3), when preparing a moisture absorption wheel, the temperature of the heat treatment is 150-210°C; when preparing a moisture absorption ring, the temperature of the heat treatment is 180-220°C.

[0063] The following provides a specific preparation process of the moisture absorption wheel and the moisture absorption ring:

[0064] Process 1:

[0065] 2 L of silicate solution was added to the fiber base paper containing ceramic fibers, and 0.7 kg of polyvinyl alcohol, 0.3 kg of modified polyacrylonitrile and 0.25 kg of vinyl chloride were added, and the mixture was heated to 80° C. and stirred to obtain a paper fiber solution, and then 0.5 kg of metasilicic acid was mixed into 1 L of water to obtain a metasilicic acid solution, which was added to the paper fiber solution to obtain a fiber solution A;

[0066] The fibrous solution A is divided into two parts, a and b. The solution a is poured into a layered wheel body shaping mold to prepare a honeycomb wheel body layer by layer. The honeycomb wheel body is heated to 150°C for heat treatment for 2 hours, then cooled to 60°C and immersed in a lithium chloride solution until its quality is stable to prepare a moisture absorbing wheel; the solution b is poured into a layered ring body shaping mold to prepare a honeycomb ring body layer by layer. The honeycomb ring body is heated to 180°C for heat treatment for 2 hours, then cooled to 60°C and immersed in a lithium chloride solution until its quality is stable to prepare a moisture absorbing ring. The moisture absorbing wheel and the moisture absorbing ring prepared by this process are then installed in the above-mentioned silica gel wheel to obtain a silica gel wheel 1, and the pore size of the moisture absorbing ring is about The hole diameter of moisture absorption wheel is about

[0067] The silica gel wheel obtained above was subjected to a dehumidification test, and the specific results were: when the humidity was 20%, the moisture absorption rate of the moisture absorption ring was 16%, and the moisture absorption rate of the moisture absorption wheel was 12%; when the humidity was 80%, the moisture absorption rate of the moisture absorption ring was 65%, and the moisture absorption rate of the moisture absorption wheel was 50%.

[0068] Process 2:

[0069] 2L of silicate solution was added to the fiber base paper containing ceramic fibers, and 0.7kg of polyvinyl alcohol, 0.3kg of modified polyacrylonitrile and 0.25kg of vinyl chloride were added, and the mixture was heated to 85°C and stirred to obtain a paper fiber solution, and then 0.5kg of metasilicic acid was mixed into 1L of water to obtain a metasilicic acid solution, which was added into the paper fiber solution to obtain a fiber solution A;

[0070] Divide the fibrous solution A into two parts, a and b. Pour the solution of part a into the layered wheel body shaping mold to prepare a honeycomb-shaped rotating wheel layer by layer. Heat the honeycomb-shaped rotating wheel to 155 °C and perform heat treatment for 2 h, then cool it down to 60 °C and immerse it in the lithium chloride solution until its mass is stable to make a moisture absorption wheel. Pour the solution of part b into the layered ring body shaping mold to prepare a honeycomb-shaped ring body layer by layer. Heat the honeycomb-shaped ring body to 185 °C and perform heat treatment for 2 h, then cool it down to 60 °C and immerse it in the lithium chloride solution until its mass is stable to make a moisture absorption ring. Then install the moisture absorption wheel and moisture absorption ring made by this process into the above-mentioned silica gel rotating wheel to obtain silica gel rotating wheel 2. The pore diameter of the moisture absorption ring is about The pore diameter of the moisture absorption wheel is about

[0071] Perform dehumidification tests on the obtained silica gel rotating wheel above. The specific results are as follows: when the humidity is 20%, the moisture absorption rate of the moisture absorption ring is 18%, and the moisture absorption rate of the moisture absorption wheel is 14%; when the humidity is 80%, the moisture absorption rate of the moisture absorption ring is 72%, and the moisture absorption rate of the moisture absorption wheel is 61%.

[0072] Process three:

[0073] Add 2 L of silicate solution to the fibrous base paper containing ceramic fibers, and add 0.7 kg of polyvinyl alcohol, 0.3 kg of modified polyacrylonitrile, and 0.25 kg of vinyl chloride. Heat to 90 °C and mix and stir simultaneously to obtain a paper fibrous solution. Then mix 0.5 kg of metasilicate into 1 L of water to obtain a metasilicate solution, and add it to the paper fibrous solution to obtain fibrous solution A;

[0074] Divide the fibrous solution A into two parts, a and b. Pour the solution of part a into the layered wheel body shaping mold to prepare a honeycomb-shaped rotating wheel layer by layer. Heat the honeycomb-shaped rotating wheel to 160 °C and perform heat treatment for 2 h, then cool it down to 60 °C and immerse it in the lithium chloride solution until its mass is stable to make a moisture absorption wheel. Pour the solution of part b into the layered ring body shaping mold to prepare a honeycomb-shaped ring body layer by layer. Heat the honeycomb-shaped ring body to 190 °C and perform heat treatment for 2 h, then cool it down to 60 °C and immerse it in the lithium chloride solution until its mass is stable to make a moisture absorption ring. Then install the moisture absorption wheel and moisture absorption ring made by this process into the above-mentioned silica gel rotating wheel to obtain silica gel rotating wheel 3. The pore diameter of the moisture absorption ring is about The pore diameter of the moisture absorption wheel is about

[0075] Perform dehumidification tests on the obtained silica gel rotating wheel above. The specific results are as follows: when the humidity is 20%, the moisture absorption rate of the moisture absorption ring is 19%, and the moisture absorption rate of the moisture absorption wheel is 14%; when the humidity is 80%, the moisture absorption rate of the moisture absorption ring is 75%, and the moisture absorption rate of the moisture absorption wheel is 62%.

[0076] The above embodiments are only used to illustrate the technical concept and features of the present invention. The purpose is to enable those skilled in the art to understand the content of the present invention and implement it accordingly, and it should not be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A silica gel rotary wheel with a variable dehumidification area, the silica gel rotary wheel comprising: A wheel axle, a wheel body, and a dehumidifying component disposed between the wheel axle and the wheel body, the raw material of the dehumidifying component including silica gel, characterized in that: The dehumidifying component includes a moisture absorption wheel and a moisture absorption ring, and the density of the moisture absorption wheel is different from that of the moisture absorption ring; The silica gel runner further includes a plurality of support columns and an adjustment ring that are arranged at equal intervals around the wheel axle. One end of each support column is connected to the outer wall of the wheel axle, and the other end is connected to the inner wall of the wheel body. The support columns respectively pass through the moisture absorption wheel and the moisture absorption ring; the extending direction of the support columns is perpendicular to the extending direction of the wheel axle; The adjustment ring is slidably disposed on each support column and can expand or contract during the sliding process; The wheel axle, the moisture absorption wheel, the adjustment ring, the moisture absorption ring, and the wheel body are arranged in sequence from the inside out; The silica gel runner further includes a driving mechanism for driving the adjustment ring to move and expand or contract.

2. The silica gel rotary wheel with a variable dehumidification area according to claim 1, wherein: The adjustment ring includes a plurality of adjustment ring segments and a plurality of telescopic sleeves. The adjustment ring segments are slidably disposed on the support columns, and two adjacent adjustment ring segments are connected by the telescopic sleeves. The telescopic sleeves are located between two adjacent support columns, and the plurality of adjustment ring segments and the plurality of telescopic sleeves are enclosed and connected to form the adjustment ring.

3. The silica gel rotary wheel with a variable dehumidification area according to claim 2, wherein: The driving mechanism includes a plurality of driving members, each driving member corresponding to one adjustment ring segment, and the driving member is in transmission connection with the adjustment ring segment and drives the adjustment ring segment to move.

4. The silica gel rotary wheel with a variable dehumidification area according to claim 3, wherein: The support column is a hollow structure and has pores extending along its own extending direction on both sides. The driving member is disposed in the hollow structure of the support column and passes through the pores to be in transmission connection with the adjustment ring segment.

5. The silica gel rotary wheel with a variable dehumidification area according to claim 3, wherein: The driving member is disposed outside the wheel body; The driving member sequentially passes through the wheel body, the moisture absorption ring and is in transmission connection with the adjustment ring segment, or, The driving member is in transmission connection with the adjustment ring segment from the outside of the moisture absorption ring.

6. The silica gel rotary wheel with a variable dehumidification area according to claim 1, wherein: The moisture absorption wheel and the moisture absorption ring respectively have a honeycomb structure; and / or, The silica gel runner further includes a plurality of optical sensors that are regularly arranged along the length direction of the support column and are used to monitor the moisture absorption wheel and / or the moisture absorption ring. The plurality of optical sensors have the same orientation, and their orientation is parallel to the axial direction of the wheel body.

7. The silica gel rotary wheel with a variable dehumidification area according to claim 1, wherein: The preparation method of the moisture absorption wheel or the moisture absorption ring includes the following steps: (1) Add a silicate solution, polyvinyl alcohol, modified polyacrylonitrile, and vinyl chloride to the base paper, mix and stir to obtain a paper fiber solution, and then mix in an acid solution to obtain a fiber solution; (2) Pour the fiber solution into a mold and prepare it layer by layer into a rough product; (3) Heat-process the rough product and then cool it down, and immerse it in a lithium chloride solution until it is shaped; When the mold is a wheel body mold, a moisture absorption wheel is made; when the mold is a ring body mold, a moisture absorption ring is made.

8. The silica gel rotary wheel with a variable dehumidification area according to claim 7, wherein: In step (1), the base paper is selected from inorganic fibers and / or organic fibers; and / or, in step (1), the acid solution is a combination of one or more selected from metasilicic acid, hydrofluoric acid, and acetic acid; and / or, in step (1), the silicate solution is added to the base paper at 80-100 °C and stirred.

9. The silica gel rotary wheel with a variable dehumidification area according to claim 7, wherein: In step (3), when preparing the moisture absorption wheel, the temperature of the hot processing is 150 - 210 °C; when preparing the moisture absorption ring, the temperature of the hot processing is 180 - 220 °C.

Images