Rotary dehumidifier with high-efficiency sealing structure

Abstract

The utility model provides a kind of rotary dehumidifier with high-efficiency sealing structure, it is related to dehumidification equipment technical field, including drying air system and conveying air system, the drying air system includes rotary handling air system, rotary regeneration air system and drying runner, the drying runner includes drying runner processing area and drying runner regeneration area, the rotary handling air system includes the new air inlet, new air primary filter, new air surface cooler, air blower, new air medium filter, drying runner processing area and air supply filter connected in turn;The utility model extracts outdoor fresh air into unit by air blower, obtains drying air after being absorbed and dehumidified by drying runner processing area, then drying air is sent into material conveying pipeline by booster fan, at the same time, regenerate hot air is introduced into drying runner regeneration area to realize desorption, rotary runner is rotated continuously from drying runner regeneration area to drying runner processing area by certain rotating speed under the drive of speed reducer, to realize stable dehumidification.

Description

Technical Field

[0001] This utility model relates to the field of dehumidification equipment technology, and in particular to a rotary dehumidifier with a high-efficiency sealing structure. Background Technology

[0002] Food additives, as an important component of the modern food industry, play a vital role in improving food quality, extending shelf life, and enhancing nutritional value. With the continuous development of the global economy and the improvement of living standards, consumers have increasingly higher requirements for food quality, taste, and shelf life, which has directly become one of the main driving forces for the development of the food additive industry. In addition, increased consumer attention to food safety and health, as well as technological innovation, have also promoted the development of the food additive industry. With the rapid development of the food additive industry, the large-scale production of various additives places stringent requirements on material drying and conveying technology. In particular, some highly hygroscopic additives, such as calcium chloride and xylitol, are prone to deliquescence and clumping in humid environments, leading to loss of material flowability and affecting material conveying, as well as material denaturation and quality risks, thereby impacting the company's economic benefits and safe production. In the traditional production lines of leading companies, the food additive material drying and conveying system typically adopts an independent operation mode for the booster fan and the rotary dehumidifier to improve material drying and conveying efficiency and product quality. When the rotary dehumidifier operates independently, its operating parameters are automatically adjusted according to the humidity requirements of different materials, and it is not affected by fluctuations in the airflow and pressure of the booster fan in the conveying system. In existing technologies, the independent operation mode of rotary dehumidifiers and booster fans presents the following typical problems and risks: Energy consumption imbalance problem. The energy consumption curves of the booster fan and the rotary dehumidifier cannot complement each other. When the system is in a low-load delivery state, the booster fan still needs to maintain the basic air pressure, while the rotary dehumidifier may enter low-frequency operation because the humidity reaches the standard, resulting in an imbalance of "high power energy consumption + low dehumidification energy consumption". Risk of material quality fluctuations. When the rotary dehumidifier and the booster fan operate independently, the matching degree between humidity control and material conveying decreases, which can easily lead to over-dehumidification but insufficient airflow or sufficient airflow but insufficient dehumidification. This results in uneven flow rate of materials in the conveying pipeline, and the materials may become too dry or damp due to abnormal humidity. Chain reaction of failure. The independent operation mode lacks an emergency linkage mechanism. If the rotary dehumidifier fails to dehumidify due to a heating device malfunction, the continued operation of the booster fan will bring humid air into the material, which may cause widespread material deterioration. Conversely, when the booster fan stops, the continued operation of the rotary dehumidifier will waste dry air and increase operating costs. Potential risks of integrating rotary dehumidifiers with booster fans: The booster fan enhances air delivery capacity by increasing the air pressure in the rotary dehumidifier processing zone, but this may lead to an imbalance in the pressure difference between the rotary dehumidifier processing zone and the regeneration zone, which may cause hot air from the regeneration zone to flow back into the processing zone (or vice versa), disrupting the preset airflow path, affecting the dehumidification effect, and increasing dehumidification energy consumption. Therefore, this utility model proposes a rotary dehumidifier with a high-efficiency sealing structure to solve the problems existing in the prior art. Utility Model Content

[0003] To address the aforementioned problems, this utility model proposes a rotary dehumidifier with a high-efficiency sealing structure. This dehumidifier draws in fresh outdoor air through a blower, dehumidifies it in the drying rotor's processing zone, and then delivers dry air to the material conveying pipeline via a booster fan. Simultaneously, regenerated hot air is introduced into the drying rotor's regeneration zone for desorption. Driven by a geared motor, the rotor continuously rotates from the regeneration zone to the processing zone at a certain speed, achieving continuous and stable dehumidification.

[0004] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a rotary dehumidifier with a high-efficiency sealing structure, comprising a drying air system and a conveying air system, wherein the drying air system comprises a rotary processing air system, a rotary regeneration air system and a drying rotary wheel, wherein the drying rotary wheel comprises a drying rotary wheel processing area and a drying rotary wheel regeneration area, wherein the rotary processing air system comprises, in sequence, a fresh air inlet, a fresh air pre-filter, a fresh air surface cooler, a blower, a fresh air medium-efficiency filter, a drying rotary wheel processing area and a blower filter, wherein the rotary regeneration air system comprises, in sequence, a regeneration air inlet, a regeneration air inlet filter, a regeneration heater, a drying rotary wheel regeneration area, a regeneration blower and a regeneration exhaust outlet; The air delivery system includes a booster fan, an air supply surface cooler, and an air outlet connected in sequence, with the booster fan connected to an air supply filter.

[0005] A further improvement is made in the following: In the rotary air handling system, outdoor fresh air is drawn to the fresh air inlet by the blower, filtered by the fresh air pre-filter, flows through the fresh air surface cooler for heat exchange, flows through the fresh air medium-efficiency filter, then flows through the drying rotary air handling zone to obtain dry air, and then flows through the air supply filter.

[0006] A further improvement is that in the aforementioned rotary regeneration air system, the regeneration air intake is taken from outdoor fresh air, which is drawn to the regeneration air intake by the regeneration fan, filtered for pollutants by the regeneration air intake filter, and then flows through the regeneration heater for heating; subsequently, it enters the drying rotary regeneration zone for desorption, and finally is discharged outdoors through the regeneration exhaust port.

[0007] A further improvement is that in the conveying air system, the booster fan increases the pressure and drives the drying air prepared by the rotary processing air system to obtain high-temperature drying air, which then flows through the air supply surface cooler for heat exchange, and is subsequently sent into the material conveying pipeline through the air supply port.

[0008] A further improvement is that a radial isolation sheet metal is provided between the drying wheel processing area and the drying wheel regeneration area, and a rectangular labyrinth tooth is provided on the inner side of the radial isolation sheet metal. The surface of the drying wheel is provided with an annular flange that matches the rectangular labyrinth tooth, and the tooth tip area of ​​the rectangular labyrinth tooth and the side of the annular flange are filled with sealing material.

[0009] Further improvements include: a temperature and humidity sensor installed at the fresh air inlet to detect the temperature and relative humidity of the incoming fresh air; a filter differential pressure switch installed after the pre-filter to detect whether the filter is clogged; a temperature sensor installed after the fresh air surface cooler to detect the outlet temperature of the fresh air surface cooler; a filter differential pressure switch installed after the medium-efficiency fresh air filter to detect whether the filter is clogged; differential pressure sensors installed in the dehumidifying impeller processing area and the dehumidifying impeller regeneration area to detect the processing air volume and regeneration air volume of the dehumidifying impeller; and a filter differential pressure switch installed after the supply air filter to detect whether the filter is clogged.

[0010] Further improvements include: The air outlet is equipped with a temperature and humidity sensor and an over-temperature switch to detect whether the air supply temperature, relative humidity, and air temperature exceed the limit; the air outlet is equipped with an airflow sensor to detect the airflow volume; the regeneration air inlet is equipped with a temperature and humidity sensor to detect the temperature and relative humidity of the regeneration air inlet; a filter differential pressure switch is installed after the regeneration air inlet filter to detect whether the filter is clogged; a temperature sensor and an over-temperature switch are installed after the regeneration heater to detect the regeneration heating temperature and whether it exceeds the limit; the regeneration fan, air supply fan, and booster fan are equipped with frequency converters to adjust the regeneration airflow, air supply volume, and air delivery volume; the regeneration exhaust outlet is equipped with a temperature and humidity sensor to detect the regeneration exhaust temperature and relative humidity; and the drying impeller is equipped with a speed sensor to detect the impeller speed.

[0011] The beneficial effects of this utility model are as follows: 1. This utility model draws fresh outdoor air into the unit using a blower. After dehumidification by the drying rotor, dry air is obtained and then delivered to the material conveying pipeline by a booster fan. Simultaneously, regenerated hot air is introduced into the drying rotor regeneration zone for desorption. Driven by a geared motor, the rotor rotates continuously from the drying rotor regeneration zone to the drying rotor treatment zone at a certain speed, achieving continuous and stable dehumidification. When the rotary dehumidifier and the booster fan operate in conjunction, the dehumidification capacity of the rotary dehumidifier and the air volume and air pressure of the booster fan can be adjusted in real time according to the air humidity and airflow requirements, achieving energy-saving effects and reducing operating costs. The integration of the rotary dehumidifier and the booster fan enables real-time matching of humidity control and conveying power, ensuring the stability of material quality during the drying and conveying process.

[0012] 2. This utility model adopts an integrated design, which can combine two traditionally independently arranged devices into an integrated unit, reducing the floor space and eliminating the additional costs of pipe connection and control system interaction when operating independently. It also facilitates the subsequent adoption of a unified electrical control cabinet, thereby improving fault diagnosis efficiency and eliminating collaborative faults caused by communication delays between the two devices when operating independently. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention; Figure 2 This is a schematic diagram of the partitioning of the drying rotor of this utility model; Figure 3 This is a schematic diagram of the radial sealing structure of the sheet metal separating the drying rotor processing area and the regeneration area of ​​this utility model.

[0014] The components include: 1. Fresh air inlet; 2. Fresh air pre-filter; 3. Fresh air surface cooler; 4. Air supply fan; 5. Fresh air medium-efficiency filter; 6. Drying impeller; 7. Air supply filter; 8. Booster fan; 9. Air supply surface cooler; 10. Air outlet; 11. Regeneration air inlet; 12. Regeneration air inlet filter; 13. Regeneration heater; 14. Regeneration fan; 15. Regeneration exhaust outlet; 16. Drying impeller processing area; 17. Drying impeller regeneration area; 18. Annular flange; 19. Radial isolation sheet metal; 20. Rectangular labyrinth teeth; 21. Sealing material. Detailed Implementation

[0015] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0016] Example 1 according to Figure 1 , 2As shown in Figure 3, this embodiment proposes a rotary dehumidifier with a high-efficiency sealing structure, including a drying air system and a conveying air system. The drying air system includes a rotary processing air system, a rotary regeneration air system, and a drying rotary wheel 6. The drying rotary wheel 6 includes a drying rotary processing zone 16 and a drying rotary regeneration zone 17. The rotary processing air system includes a fresh air inlet 1, a fresh air primary filter 2, a fresh air surface cooler 3, a blower 4, a fresh air medium-efficiency filter 5, a drying rotary processing zone 16, and a blower filter 7 connected in sequence. The rotary regeneration air system includes a regeneration inlet 11, a regeneration inlet filter 12, a regeneration heater 13, a drying rotary regeneration zone 17, a regeneration blower 14, and a regeneration exhaust outlet 15 connected in sequence. The air delivery system includes a booster fan 8, an air supply surface cooler 9, and an air outlet 10 connected in sequence. The booster fan 8 is connected to the air supply filter 7.

[0017] In the rotary air handling system, outdoor fresh air is drawn to the fresh air inlet 1 by the blower 4, filtered by the pre-filter 2, flows through the fresh air surface cooler 3 for heat exchange, then flows through the fresh air medium-efficiency filter 5, and then flows through the drying rotary air handling zone 16 to obtain dry air, and then flows through the supply air filter 7. Outdoor fresh air is drawn to the fresh air inlet 1 by the blower, after which a pre-filter is installed to filter out pollutants in the fresh air; the filtered fresh air then flows through the fresh air surface cooler located after the pre-filter, where it exchanges heat with the cold fluid inside to obtain low-temperature, low-humidity air; the low-temperature, low-humidity air then flows through the fresh air medium-efficiency filter to further filter out pollutants in the fresh air, preventing dust accumulation on the rotary air handling zone and thus reducing dehumidification performance; the filtered fresh air then flows through the drying rotary air handling zone for adsorption and dehumidification to obtain dry air; subsequently, it flows through the supply air filter to further filter out pollutants in the supply air, preventing contamination and effectively maintaining the stable aerodynamic characteristics of the booster fan, avoiding mechanical damage and efficiency loss to the booster fan.

[0018] In the rotary regeneration air system, the regeneration air intake is drawn from outdoor fresh air, which is drawn into the regeneration inlet 11 by the regeneration fan 14. After passing through the regeneration inlet filter 12 to filter pollutants, it flows through the regeneration heater 13 for heating. Subsequently, it enters the drying rotary regeneration zone 17 for desorption, and finally is discharged outdoors through the regeneration exhaust outlet 15. Alternatively, the regeneration air intake is drawn from outdoor fresh air, drawn into the regeneration inlet by the regeneration fan, and then filtered by a regeneration inlet filter to prevent dust accumulation on the rotary wheel and subsequent dehumidification performance degradation. The filtered regeneration air flows through the regeneration heater for heating to obtain high-temperature regeneration hot air. It then enters the drying rotary regeneration zone after the regeneration heater for desorption, resulting in high-temperature, high-humidity regeneration exhaust air. This high-temperature, high-humidity regeneration exhaust air is discharged outdoors by the regeneration fan located after the drying rotary regeneration zone through the exhaust outlet.

[0019] In the conveying air system, the booster fan 8 increases the pressure and drives the drying air prepared by the rotary processing air system to obtain high-temperature drying air. This air then flows through the air supply surface cooler 9 for heat exchange, and is subsequently sent into the material conveying pipeline through the air outlet 10. To overcome the resistance of the conveying pipeline and meet process requirements, the booster fan increases the pressure and drives the drying air prepared by the rotary processing air system to obtain high-temperature drying air (generally above 60°C). The high-temperature drying air flows sequentially through the air supply surface cooler located after the booster fan, exchanging heat with the cold fluid inside. The automatic control system enables precise temperature control during the drying and conveying of different materials. Finally, the air is sent into the material conveying pipeline through the air outlet located after the air supply surface cooler.

[0020] A radial isolation sheet metal 19 is provided between the drying rotor processing area 16 and the drying rotor regeneration area 17. The inner side of the radial isolation sheet metal 19 is provided with rectangular labyrinth teeth 20. The surface of the drying rotor 6 is provided with an annular flange 18 adapted to the rectangular labyrinth teeth 20. The tooth tip area of ​​the rectangular labyrinth teeth 20 and the side of the annular flange 18 are filled with sealing material 21. To enhance the radial sealing effect between the drying rotor processing area and the regeneration area, a non-contact labyrinth seal is used instead of a traditional rubber sealing strip. Multi-stage rectangular labyrinth teeth are machined on the inner side of the sheet metal in the radial isolation area (the side closest to the drying rotor surface) as a "static resistance unit" for sealing. The rectangular labyrinth teeth must be concentric with the drying rotor surface and are fixed to the edge of the isolation area by sheet metal stamping or welding, ensuring that the tooth tips face the drying rotor surface. A matching annular flange is machined onto the surface of the drying rotor, serving as a "moving-side mating unit" for sealing. Since the drying rotor is made of honeycomb or adsorbent materials (such as silica gel or molecular sieves), the edges need to be reinforced with resin curing or metal edging to prevent deformation of the annular flange. The rectangular labyrinth teeth of the stationary sheet metal intersect with the annular flange on the rotating drying rotor surface, forming multi-stage "S-shaped" or "Z-shaped" tortuous flow channels. Simultaneously, the tooth tip areas of the rectangular labyrinth teeth and the sides of the annular flange are filled with a sealing material—polytetrafluoroethylene (PTFE) fiber. This material possesses excellent flexibility and compression resilience, as well as good temperature resistance and chemical stability, effectively covering potential leakage paths. Through this labyrinth structure of interlaced stationary multi-stage teeth and moving-side flanges, the radial sealing effect between the drying rotor's treatment and regeneration zones can be significantly improved without contact.

[0021] The fresh air inlet 1 is equipped with a temperature and humidity sensor to detect the temperature and relative humidity of the incoming fresh air. A filter differential pressure switch is installed after the fresh air pre-filter 2 to detect whether the filter is clogged. A temperature sensor is installed after the fresh air surface cooler 3 to detect the outlet air temperature of the fresh air surface cooler. A filter differential pressure switch is installed after the fresh air medium-efficiency filter 5 to detect whether the filter is clogged. Differential pressure sensors are installed in the dehumidifying rotor processing area 16 and the dehumidifying rotor regeneration area 17 to detect the processing air volume and regeneration air volume of the dehumidifying rotor, respectively. A filter differential pressure switch is installed after the supply air filter 7 to detect whether the filter is clogged.

[0022] The air outlet 10 is equipped with a temperature and humidity sensor and an over-temperature switch to detect the supply air temperature, relative humidity, and whether the supply air temperature exceeds the limit. The air outlet 10 is also equipped with an airflow sensor to detect the delivery airflow. The regeneration air inlet 11 is equipped with a temperature and humidity sensor to detect the temperature and relative humidity of the regeneration air inlet. A filter differential pressure switch is installed after the regeneration air inlet filter 12 to detect whether the filter is clogged. The regeneration heater 13 is equipped with a temperature sensor and an over-temperature switch to detect the regeneration heating temperature and whether it exceeds the limit. The regeneration fan 14, the supply fan 4, and the booster fan 8 are equipped with frequency converters to adjust the regeneration airflow, supply airflow, and delivery airflow. The regeneration exhaust outlet 15 is equipped with a temperature and humidity sensor to detect the regeneration exhaust air temperature and relative humidity. The drying impeller 6 is equipped with a speed sensor to detect the impeller speed.

[0023] Example 2 according to Figure 1 , 2 As shown in Figure 3, this embodiment proposes a rotary dehumidifier with a high-efficiency sealing structure. During the drying and conveying of hygroscopic food additives, temperature and humidity control must consider both material characteristics and process requirements. The temperature is typically controlled within the range of 25~50℃, and the relative humidity is typically controlled within the range of 10%~40%. A high-efficiency fresh air material drying and conveying system is adopted. Based on the main components such as the fresh air surface cooler 3, drying rotary wheel 6, air supply surface cooler 9, air supply fan 4, booster fan 8, regeneration fan 14, and regeneration heater 13, to ensure the stability of material quality during the drying and conveying process, the automatic control system can set target temperature and humidity for different hygroscopic materials during the drying and conveying process, and monitor and automatically adjust the air supply temperature and humidity and the air volume delivered by the booster fan 8 in real time to achieve adaptive control of humidity and conveying air volume. Generally, the air supply fan 4 can be a volute centrifugal fan, a voluteless centrifugal fan, or an EC fan, etc., and the booster fan 8 can be a centrifugal fan, a Roots blower, a screw blower, or an axial flow fan, etc. The basic working principle is as follows: outdoor fresh air is drawn into the unit by the blower 4, and after being adsorbed and dehumidified by the drying wheel treatment zone 16, dry air is obtained. Then, the dry air is sent into the material conveying pipeline by the booster blower 8. At the same time, regenerated hot air is introduced into the drying wheel regeneration zone 17 to achieve desorption. Driven by the geared motor, the wheel rotates continuously from the drying wheel regeneration zone 17 to the drying wheel treatment zone 16 at a certain speed to achieve continuous and stable dehumidification.

[0024] This rotary dehumidifier with a high-efficiency sealed structure draws in fresh outdoor air through a blower 4. After being dehumidified by the drying rotary processing zone 16, dry air is obtained and then delivered to the material conveying pipeline by a booster fan 8. Simultaneously, regenerated hot air is introduced into the drying rotary regeneration zone 17 for desorption. Driven by a geared motor, the rotary wheel rotates continuously from the drying rotary regeneration zone 17 to the drying rotary processing zone 16 at a certain speed, achieving continuous and stable dehumidification. When the rotary dehumidifier and the booster fan 8 operate in conjunction, the dehumidification capacity of the rotary dehumidifier and the air volume and air pressure of the booster fan 8 can be adjusted in real time according to the air humidity and airflow requirements, achieving energy-saving effects and reducing operating costs. The integration of the rotary dehumidifier and the booster fan enables real-time matching of humidity control and conveying power, ensuring the stability of material quality during the drying and conveying process.

[0025] Furthermore, this product adopts an integrated design, which can combine two traditionally independently arranged devices into a single unit. This reduces the floor space required and eliminates the additional costs associated with independent operation, such as piping connections and control system interaction. It also facilitates the adoption of a unified electrical control cabinet, thereby improving fault diagnosis efficiency and eliminating collaborative faults caused by communication delays between the two devices when they are operating independently.

[0026] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rotary dehumidifier with a high-efficiency sealing structure, comprising a drying air system and a conveying air system, characterized in that: The drying air system includes a rotary processing air system, a rotary regeneration air system, and a drying rotary wheel (6). The drying rotary wheel (6) includes a drying rotary processing area (16) and a drying rotary regeneration area (17). The rotary processing air system includes a fresh air inlet (1), a fresh air primary filter (2), a fresh air surface cooler (3), a blower (4), a fresh air medium-efficiency filter (5), a drying rotary processing area (16), and a blower filter (7) connected in sequence. The rotary regeneration air system includes a regeneration inlet (11), a regeneration inlet filter (12), a regeneration heater (13), a drying rotary regeneration area (17), a regeneration blower (14), and a regeneration exhaust outlet (15) connected in sequence. The air delivery system includes a booster fan (8), an air supply surface cooler (9), and an air outlet (10) connected in sequence. The booster fan (8) is connected to the air supply filter (7).

2. A rotary dehumidifier with a high-efficiency sealing structure according to claim 1, characterized in that: In the rotary air processing system, outdoor fresh air is drawn to the fresh air inlet (1) by the blower (4), filtered by the fresh air primary filter (2), and then flows through the fresh air surface cooler (3) for heat exchange. After passing through the fresh air medium filter (5), it flows through the drying rotary processing zone (16) to obtain dry air, and then flows through the air supply filter (7).

3. A rotary dehumidifier with a high-efficiency sealing structure according to claim 2, characterized in that: In the rotary regeneration air system, the regeneration air intake is taken from outdoor fresh air, which is drawn to the regeneration air intake port (11) by the regeneration fan (14), filters pollutants through the regeneration air intake filter (12), and then flows through the regeneration heater (13) for heating; then it enters the drying rotary regeneration zone (17) for desorption, and finally is discharged outdoors through the regeneration exhaust port (15).

4. A rotary dehumidifier with a high-efficiency sealing structure according to claim 3, characterized in that: In the conveying air system, the booster fan (8) increases the pressure and drives the drying air prepared by the rotary processing air system to obtain high-temperature drying air, which then flows through the air supply surface cooler (9) for heat exchange, and is then sent into the material conveying pipeline through the air supply port (10).

5. A rotary dehumidifier with a high-efficiency sealing structure according to claim 1, characterized in that: A radial isolation sheet metal (19) is provided between the drying wheel processing area (16) and the drying wheel regeneration area (17). A rectangular labyrinth tooth (20) is provided on the inner side of the radial isolation sheet metal (19). An annular flange (18) adapted to the rectangular labyrinth tooth (20) is provided on the surface of the drying wheel (6). The tooth tip area of ​​the rectangular labyrinth tooth (20) and the side of the annular flange (18) are filled with sealing material (21).

6. A rotary dehumidifier with a high-efficiency sealing structure according to claim 1, characterized in that: The fresh air inlet (1) is equipped with a temperature and humidity sensor to detect the temperature and relative humidity of the incoming fresh air. A filter differential pressure switch is installed after the fresh air pre-filter (2) to detect whether the filter is clogged. A temperature sensor is installed after the fresh air surface cooler (3) to detect the outlet temperature of the fresh air surface cooler. A filter differential pressure switch is installed after the fresh air medium-efficiency filter (5) to detect whether the filter is clogged. Differential pressure sensors are installed in the drying wheel processing area (16) and the drying wheel regeneration area (17) to detect the processing air volume and regeneration air volume of the dehumidifying wheel. A filter differential pressure switch is installed after the supply air filter (7) to detect whether the filter is clogged.

7. A rotary dehumidifier with a high-efficiency sealing structure according to claim 6, characterized in that: The air outlet (10) is equipped with a temperature and humidity sensor and an over-temperature switch to detect whether the air supply temperature, relative humidity, and air supply temperature exceed the limit. The air outlet (10) is equipped with an air volume sensor to detect the air volume being delivered. The regeneration air inlet (11) is equipped with a temperature and humidity sensor to detect the temperature and relative humidity of the regeneration air inlet. The regeneration air inlet filter (12) is equipped with a filter screen differential pressure switch to detect whether the filter screen is clogged. The regeneration heater (13) is equipped with a temperature sensor and an over-temperature switch to detect the regeneration heating temperature and whether it exceeds the limit. The regeneration fan (14), the air supply fan (4), and the booster fan (8) are equipped with frequency converters to adjust the regeneration air volume, air supply volume, and air delivery volume. The regeneration exhaust outlet (15) is equipped with a temperature and humidity sensor to detect the regeneration exhaust temperature and relative humidity. The drying wheel (6) is equipped with a speed sensor to detect the wheel speed.

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