Clean air conditioning phase change adsorption air dehumidification device

Abstract

The utility model discloses a clean air conditioner phase change adsorption air dehumidification device, including base, dehumidification tray and adsorption piece, the fixed top of base is according to organic case, and the dehumidification tray is embedded and installed in the case, and the pivot is rotatablely installed at the inside center of dehumidification tray, and the mounting seat is fixedly installed on the upper and lower sides of pivot symmetrically, and the baffle is fixedly installed on the left and right sides of pivot symmetrically, the insertion slot is opened in the mounting seat, and the adsorption piece is inserted and installed in the insertion slot, and the maintenance cover is detachably installed at the front end of case and located the outside of dehumidification tray, and the perforation that can supply adsorption piece dismouting is opened below maintenance cover, the utility model discloses can realize the continuous dehumidification operation of clean air conditioning system, avoids the humidity fluctuation of clean space caused by traditional intermittent dehumidification, simplifies the maintenance dismounting process of adsorption piece simultaneously, reduces the work load of operation and maintenance personnel and equipment downtime cost, in addition, can realize the airflow sealed isolation of dehumidification area and regeneration area, avoids the pollution of dry air with wet air, ensures the cleanliness standard.

Description

Technical Field

[0001] This utility model relates to the field of clean air conditioning technology, and in particular to a clean air conditioning phase change adsorption air dehumidification device. Background Technology

[0002] In fields with stringent requirements for environmental humidity and cleanliness, such as electronics manufacturing, biomedicine, and precision instrument testing, cleanroom air conditioning systems need to continuously and stably control the humidity of the space to avoid product damage, microbial growth, or performance degradation of precision equipment caused by high humidity. Adsorption dehumidifiers have become a core component of cleanroom air conditioning due to their characteristics of producing no condensate and high dehumidification accuracy. However, the adsorption dehumidifiers currently on the market still have the following technical pain points that are difficult to solve in practical applications.

[0003] Firstly, most existing adsorption dehumidifiers adopt a single adsorption zone design, meaning they only have one set of adsorption components. When the adsorption material reaches saturation, the system needs to be shut down and the adsorption components need to be regenerated. During the regeneration process, the dehumidifier completely stops working, which causes a gap in humidity control in the cleanroom air conditioning system. The humidity in the cleanroom will rise rapidly, especially in high-humidity environments or scenarios with extremely high humidity sensitivity. Short-term humidity fluctuations may lead to a decrease in product yield. Although some devices attempt to set up two independent adsorption components to achieve alternating dehumidification and regeneration, the two components require separate air ducts and regeneration equipment. This not only results in structural redundancy and a large space occupation, but also makes it easy for humid air to mix due to poor sealing during air duct switching, affecting the dehumidification accuracy.

[0004] Secondly, to ensure cleanliness and structural sealing, existing dehumidification devices mostly use a fixed encapsulation design for their adsorption materials. The adsorption material is fixed inside the dehumidification module, and the dehumidification module is connected to the chassis and air duct through multiple layers of bolts and sealant. When it is necessary to replace the aging or failed adsorption material, maintenance personnel need to disassemble multiple components such as the chassis shell, air duct flange, and dehumidification module end cover in sequence. The operation steps are cumbersome. In some devices, the adsorption material even needs to be replaced by the entire dehumidification module, which further increases the cost of consumables. In addition, the device needs to be shut down for a long time during maintenance, which will interrupt the production or experimental process in the clean space and cause significant downtime losses. This problem is more prominent, especially in industrial scenarios with continuous production.

[0005] In addition, existing dehumidification devices generally suffer from uneven hot air delivery and lack of temperature control in their regeneration systems. On the one hand, the hot air generated by the hot air blower is directly introduced into the regeneration area through a single air duct, resulting in uneven heating of the adsorbent material in different locations within the regeneration area. In some areas, the adsorbent material cannot completely decompose the moisture due to insufficient temperature, leading to a significant reduction in subsequent dehumidification performance. Furthermore, when the adsorbent material that has not been completely decomposed is put back into the dehumidification system, it will also cause a decrease in dehumidification efficiency.

[0006] Therefore, this application proposes a novel dehumidification device that can solve the above-mentioned pain points. Utility Model Content

[0007] One objective of this invention is to propose a phase change adsorption air dehumidification device for cleanroom air conditioning. This invention enables continuous dehumidification of cleanroom air conditioning systems, avoiding humidity fluctuations in cleanrooms caused by traditional intermittent dehumidification. It also simplifies the maintenance and disassembly process of the adsorption plates, reducing the workload of maintenance personnel and equipment downtime costs. Furthermore, it achieves airflow sealing and isolation between the dehumidification zone and the regeneration zone, preventing humid air from mixing with and contaminating dry air, ensuring that cleanliness standards are met. The overall structure is simple and compact, adaptable to installation environments with limited cleanroom spaces, and comprehensively solves the problems of intermittent dehumidification, complex maintenance, inefficient regeneration, and insufficient cleanliness guarantee in current cleanroom air conditioning adsorption dehumidification devices.

[0008] The clean air conditioning phase change adsorption air dehumidification device according to an embodiment of the present utility model includes a base, a dehumidification disc and an adsorption sheet; The base is fixedly mounted on top of a chassis, in which a dehumidification disc is embedded. A rotating shaft is rotatably mounted at the center of the dehumidification disc. Mounting seats are symmetrically mounted on the upper and lower sides of the rotating shaft, and partitions are symmetrically mounted on the left and right sides of the rotating shaft. Slots are provided in the mounting seats, and adsorption sheets are inserted into the slots. A maintenance cover is detachably mounted on the front of the chassis and outside the dehumidification disc. A perforation is provided below the maintenance cover for the adsorption sheets to be installed and removed.

[0009] Furthermore, an air inlet is installed on the upper side of one side of the chassis, and an air outlet is installed on the upper side of the other side of the chassis, symmetrical to the air inlet, and both the air inlet and the air outlet are connected to the interior of the dehumidification tray.

[0010] Furthermore, a hot air duct is installed on the lower side of one side of the chassis, and an exhaust duct is installed on the lower side of the other side of the chassis, symmetrical to the hot air duct. Both the hot air duct and the exhaust duct are connected to the interior of the dehumidification tray.

[0011] Furthermore, a hot air blower is provided on one side of the top of the base, and the output end of the hot air blower is fixedly connected to a hot air pipe. The hot air pipe delivers hot air into the dehumidification tray through the hot air blower.

[0012] Furthermore, the dehumidification disc is divided into a dehumidification zone and a regeneration zone by partitions on both sides of the rotating shaft, and the two sets of mounting bases and adsorption plates are respectively arranged in the dehumidification zone and the regeneration zone.

[0013] Furthermore, a servo motor is fixedly mounted on the back of the chassis via a bracket, and the output shaft of the servo motor is connected to the rotating shaft via a coupling.

[0014] Furthermore, the adsorption sheet contains a phase change adsorption material, and a handle is embedded at the front end of the adsorption sheet to facilitate its assembly and disassembly.

[0015] Furthermore, sealing strips are symmetrically arranged on the outer sides of the two sets of mounting bases, and the sealing strips are tightly fitted to the inner wall of the dehumidification tray.

[0016] Furthermore, bolts are inserted around the inspection cover, and screw holes corresponding to the bolts are opened on the front wall of the chassis. The inspection cover can be detachably installed on the front wall of the chassis by the cooperation of the bolts and screw holes.

[0017] Furthermore, the adsorption sheet is in clearance fit with the slot of the mounting base, the handle is U-shaped and its outer surface is provided with anti-slip texture, and the adsorption sheet can be installed and removed by pulling the handle along the axial direction of the slot.

[0018] The beneficial effects of this utility model are: 1. This utility model integrates the dehumidification zone and regeneration zone into a single design. The dehumidification disc is divided into independent dehumidification and regeneration zones by the cooperation of a rotating shaft and partition. A servo motor drives the dynamic switching of the dual-zone adsorption plates. During dehumidification, the adsorption plates in the dehumidification zone adsorb moisture from the airflow using built-in phase-change adsorption materials. The dehumidified, dry air is then returned to the cleanroom air conditioning system through the outlet. When the adsorption plates reach saturation, the servo motor drives the rotating shaft to rotate 180°, switching the saturated adsorption plates to the regeneration zone. Simultaneously, the regenerated adsorption plates enter the dehumidification zone to continue operating. The entire process requires no downtime for adsorption device replacement, effectively avoiding humidity fluctuations in the air conditioning system caused by traditional intermittent dehumidification. This significantly improves the continuity and stability of humidity control in cleanrooms, meeting the continuous dehumidification requirements of cleanroom air conditioning systems.

[0019] 2. In this utility model, the adsorption sheet is inserted into the slot of the mounting base. The front handle is easy for the operator to grip and apply force. The inspection cover is detachably connected by bolts, and the perforation at the bottom matches the size of the adsorption sheet. During maintenance, the adsorption sheet can be removed and replaced simply by pulling the handle along the axial direction of the slot. There is no need to disassemble the dehumidification tray or the entire chassis structure, which greatly simplifies the maintenance process. Compared with the traditional dehumidification device design that requires disassembling multiple parts to replace the adsorption material, this solution can greatly shorten the maintenance time of the adsorption sheet, reduce the workload of maintenance personnel and the downtime cost of equipment.

[0020] 2. In this utility model, a high-efficiency regeneration system is constructed by combining a hot air blower and a hot air pipe. The hot air generated by the hot air blower is precisely delivered to the regeneration zone through the hot air pipe, and fully contacts the saturated adsorption sheet, causing the phase change adsorption material to desorb the adsorbed moisture. The hot and humid air is finally discharged through the exhaust pipe. The hot air pipe can be equipped with a temperature control valve, which can stably control the regeneration temperature within the optimal desorption range of the phase change adsorption material. This avoids the adsorption material from aging and failing due to excessively high temperature, and also prevents incomplete moisture desorption and adsorption performance degradation due to excessively low temperature. Attached Figure Description

[0021] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the clean air conditioning phase change adsorption air dehumidification device proposed in this utility model. Figure 2 This is a rear view structural diagram of the clean air conditioning phase change adsorption air dehumidification device proposed in this utility model. Figure 3 This is a schematic diagram of the disassembly structure of the maintenance cover of the clean air conditioning phase change adsorption air dehumidification device proposed in this utility model. Figure 4 This is a schematic diagram showing the disassembled structure of the adsorption plate and the mounting base of the clean air conditioning phase change adsorption air dehumidification device proposed in this utility model.

[0022] In the diagram: 1. Base; 2. Chassis; 3. Air inlet; 4. Air outlet; 5. Hot air duct; 6. Exhaust duct; 7. Hot air blower; 8. Inspection cover; 9. Perforation; 10. Dehumidification tray; 11. Servo motor; 12. Shaft; 13. Bolt; 14. Mounting base; 15. Partition; 16. Slot; 17. Sealing strip; 18. Adsorption sheet; 19. Phase change adsorption material; 20. Handle. Detailed Implementation

[0023] To make the technical means and objectives and effects of this utility model easier to understand, the embodiments of this utility model will be described in detail below with reference to specific figures. It should be noted that all directional and positional terms used in this utility model, such as "up," "down," "left," "right," "front," "back," "vertical," "horizontal," "inner," "outer," "top," "lower," "lateral," "longitudinal," and "center," are only used to explain the relative positional relationships and connections between components in a specific state (as shown in the accompanying drawings). They are merely for the convenience of describing this utility model and do not require that this utility model be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, descriptions involving "first," "second," etc., in this utility model are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0024] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0026] like Figure 1-4 As shown, this utility model discloses a clean air conditioning phase change adsorption air dehumidification device, including a base 1, a dehumidification disc 10, and an adsorption sheet 18; a housing 2 is fixedly installed on the top of the base 1. Figure 1 As shown, the base and the chassis are fixed by welding to ensure the overall structural stability. A dehumidification tray 10 is embedded inside the chassis 2. The outer wall of the dehumidification tray fits snugly against the inner wall of the chassis to prevent airflow leakage. A rotating shaft 12 is rotatably mounted at the center of the dehumidification tray 10. Mounting seats 14 are symmetrically fixed on the upper and lower sides of the rotating shaft 12, and partitions 15 are symmetrically fixed on the left and right sides of the rotating shaft 12. Figure 2As shown, the partition is set perpendicular to the rotating shaft, dividing the inside of the dehumidification tray into independent spaces. The mounting base 14 has a slot 16, into which an adsorption sheet 18 is inserted and installed. The front end of the casing 2, located outside the dehumidification tray 10, has a detachable inspection cover 8. The inspection cover 8 has a perforation 9 below it for the adsorption sheet 18 to be installed and removed.

[0027] This application discloses a clean air conditioning phase change adsorption air dehumidification device. In the dehumidification process, the air to be treated enters from the air inlet 3 on the upper side of the casing 2, and the airflow directly enters the dehumidification zone of the dehumidification plate 10 separated by the partition 15. At this time, the phase change adsorption material 19 built into the adsorption plate 18 in the dehumidification zone is in a low humidity adsorption state, and the moisture in the airflow is fully adsorbed by the adsorption plate. The dry air after dehumidification is discharged from the air outlet 4 on the upper side of the other side of the casing 2 and returns to the clean air conditioning system, thereby realizing the humidity control of clean air.

[0028] During the regeneration process, once the adsorption plates 18 in the dehumidification zone are saturated with moisture, the servo motor 11 on the back of the chassis 2 is activated. The servo motor drives the rotating shaft 12 to rotate 180° clockwise, causing the saturated adsorption plates to rotate to the regeneration zone. At the same time, the adsorption plates that have been dried in the regeneration zone are rotated to the dehumidification zone, achieving continuous switching between dehumidification and regeneration. Subsequently, the hot air blower 7 on one side of the top of the base 1 is activated. The hot air generated by the hot air blower is delivered to the regeneration zone through the hot air pipe 5. The hot air comes into full contact with the saturated adsorption plates, causing the phase change adsorption material 19 to desorb the adsorbed moisture. The hot and humid air carrying moisture is discharged from the exhaust pipe 6 on the other side of the chassis 2, completing the regeneration of the adsorption plates. After regeneration, the servo motor can drive the rotating shaft to rotate again according to the adsorption saturation cycle, achieving continuous dehumidification of the device.

[0029] In addition, the device is easy to maintain and disassemble. When it is necessary to replace or repair the adsorption plate 18, simply unscrew the bolts 13 around the inspection cover 8 and remove the inspection cover 8. The operator can then hold the handle 20 at the front end of the adsorption plate 18 and pull it axially along the slot 16 of the mounting base 14 to remove the adsorption plate from the perforation 9 under the inspection cover. When installing a new adsorption plate, reverse the direction and insert the adsorption plate through the perforation into the slot, then reinstall the inspection cover and tighten the bolts.

[0030] Meanwhile, the sealing strip 17 on the outside of the mounting base 14 fits tightly against the inner wall of the dehumidification tray 10, which can effectively prevent airflow mixing between the dehumidification zone and the regeneration zone, ensuring dehumidification efficiency and regeneration effect.

[0031] The core advantage of the cleanroom air conditioning phase change adsorption air dehumidification device of this application lies in the integrated design of the dehumidification zone and regeneration zone achieved through the cooperation of the rotating shaft 12 and the partition plate 15, eliminating the need for two additional adsorption devices, simplifying the structure while achieving continuous dehumidification; the adsorption plates adopt slot and pull-out installation, combined with the design of inspection cover and perforation, which greatly reduces the maintenance difficulty of the adsorption plates; the setting of the sealing strip 17 ensures the airtightness of the zoned airflow, preventing humid air from contaminating dry air, and meeting the cleanliness requirements of cleanroom air conditioning; the cooperation of the hot air blower and hot air pipe ensures the regeneration efficiency of the adsorption plates and extends the service life of the adsorption material.

[0032] As a preferred example of this application, both the air inlet 3 and the air outlet 4 are embedded with high-efficiency air filters. The high-efficiency air filters can further filter the air entering the dehumidification plate, preventing dust, particles and other impurities from adhering to the surface of the adsorption sheet 18. This protects the adsorption performance of the phase change adsorption material 19, meets the requirements of cleanroom air conditioning for air cleanliness, and reduces the cleaning frequency of the adsorption sheet.

[0033] As a preferred example of this application, a temperature control valve is installed in series on the hot air duct 5. The temperature control valve can control the temperature of the hot air delivered by the hot air blower 7 to 50-80℃, avoiding excessively high hot air temperature that may cause aging of the adsorbent material, or excessively low temperature that may cause incomplete regeneration, thus effectively balancing regeneration efficiency and material lifespan.

[0034] As a preferred example of this application, the coupling between the servo motor 11 and the rotating shaft 12 is a flexible coupling. The flexible coupling has a certain buffering and shock absorption performance, which can reduce the damage to the rotating shaft 12 caused by the instantaneous impact force when the servo motor starts, and at the same time compensate for the installation coaxiality error between the motor output shaft and the rotating shaft, ensuring smooth rotation of the rotating shaft and avoiding friction between the partition 15 and the inner wall of the dehumidification disc 10.

[0035] As a preferred example of this application, the sealing strip 17 is made of silicone rubber with a Shore hardness of 50-60. Silicone rubber has good temperature resistance and elasticity, which can not only fit tightly against the inner wall of the dehumidification disc 10 to achieve a seal, but also avoid hard friction when the adsorption sheet 18 is disassembled or the shaft is rotated, thus extending the service life of the sealing strip.

[0036] As a preferred example of this application, the gap between the adsorption plate 18 and the slot 16 of the mounting base 14 is 0.1-0.3 mm. This gap size avoids both excessive gap leading to airflow leakage and excessive gap leading to difficulty in pulling out the adsorption plate, while also reducing frictional wear between the adsorption plate and the slot.

[0037] As a preferred example of this application, the U-shaped opening of the handle 20 faces the inspection cover 8, and the anti-slip texture is a diamond-shaped embossed pattern. The design of the opening facing the inspection cover makes it easier for the operator to grip and exert force, and the diamond-shaped anti-slip texture can increase the friction between the hand and the handle, preventing the hand from slipping when assembling or disassembling the adsorption pad, which is especially suitable for operation in humid environments.

[0038] As a preferred example of this application, a nitrile rubber sealing gasket is adhered to the contact surface between the access cover 8 and the front wall of the chassis 2. The nitrile rubber sealing gasket has good sealing performance and oil resistance, which can further enhance the sealing effect between the access cover and the chassis, prevent untreated external air from entering the chassis through gaps and contaminating the clean air after dehumidification, and at the same time prevent airflow leakage from the chassis.

[0039] As a preferred example of this application, deep groove ball bearings are installed at the rotatable connections between the two ends of the shaft 12 and the end wall of the dehumidification disc 10, and the bearings are filled with lithium-based grease. The deep groove ball bearings can reduce the frictional resistance when the shaft rotates, thus reducing energy consumption; the lithium-based grease has good water resistance and wear resistance, and can maintain its lubrication effect for a long time in humid environments, extending the service life of the shaft and bearings.

[0040] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A clean air conditioning phase change adsorption air dehumidification device, characterized in that, Includes a base (1), a dehumidifying disc (10), and an adsorption sheet (18); The base (1) is fixedly mounted on the top of the housing (2). A dehumidifying disc (10) is embedded in the housing (2). A rotating shaft (12) is rotatably mounted at the center of the dehumidifying disc (10). Mounting seats (14) are symmetrically mounted on the upper and lower sides of the rotating shaft (12). Partitions (15) are symmetrically mounted on the left and right sides of the rotating shaft (12). A slot (16) is opened in the mounting seat (14). An adsorption sheet (18) is inserted into the slot (16). An inspection cover (8) is detachably mounted at the front end of the housing (2) and outside the dehumidifying disc (10). A perforation (9) is opened below the inspection cover (8) for the adsorption sheet (18) to be disassembled and installed.

2. The clean air conditioning phase change adsorption air dehumidification device according to claim 1, characterized in that, An air inlet (3) is installed on the upper side of one side of the chassis (2), and an air outlet (4) is installed on the upper side of the other side of the chassis (2) symmetrical to the air inlet (3). Both the air inlet (3) and the air outlet (4) are connected to the interior of the dehumidification tray (10).

3. The clean air conditioning phase change adsorption air dehumidification device according to claim 1, characterized in that, A hot air duct (5) is installed on the lower side of one side of the chassis (2), and an exhaust duct (6) is installed on the lower side of the other side of the chassis (2) symmetrically with the hot air duct (5). Both the hot air duct (5) and the exhaust duct (6) are connected to the inside of the dehumidification tray (10).

4. The clean air conditioning phase change adsorption air dehumidification device according to claim 3, characterized in that, A hot air blower (7) is provided on one side of the top of the base (1). The output end of the hot air blower (7) is fixedly connected to the hot air pipe (5). The hot air pipe (5) delivers hot air into the dehumidification plate (10) through the hot air blower (7).

5. The clean air conditioning phase change adsorption air dehumidification device according to claim 1, characterized in that, The dehumidification disc (10) is divided into a dehumidification zone and a regeneration zone by partitions (15) on both sides of the rotating shaft (12). The two sets of mounting bases (14) and adsorption plates (18) are respectively set in the dehumidification zone and the regeneration zone.

6. The clean air conditioning phase change adsorption air dehumidification device according to claim 1, characterized in that, A servo motor (11) is fixedly mounted on the back of the chassis (2) by a bracket, and the output shaft of the servo motor (11) is connected to the rotating shaft (12) via a coupling.

7. The clean air conditioning phase change adsorption air dehumidification device according to claim 1, characterized in that, The adsorption sheet (18) contains a phase change adsorption material (19), and a handle (20) is embedded at the front end of the adsorption sheet (18) to facilitate the assembly and disassembly of the adsorption sheet (18).

8. The clean air conditioning phase change adsorption air dehumidification device according to claim 1, characterized in that, Two sets of mounting bases (14) are symmetrically provided with sealing strips (17) on their outer sides, and the sealing strips (17) are tightly fitted to the inner wall of the dehumidification tray (10).

9. The clean air conditioning phase change adsorption air dehumidification device according to claim 1, characterized in that, The inspection cover (8) is surrounded by bolts (13), and the front wall of the chassis (2) has screw holes corresponding to the bolts (13). The inspection cover (8) can be detachably installed on the front wall of the chassis (2) by the bolts (13) engaging with the screw holes.

10. The clean air conditioning phase change adsorption air dehumidification device according to claim 7, characterized in that, The adsorption sheet (18) is in clearance fit with the slot (16) of the mounting base (14). The handle (20) has a U-shaped structure and its outer surface is provided with anti-slip texture. The adsorption sheet (18) can be disassembled and installed by pulling the handle (20) along the axial direction of the slot (16).

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