A fresh air system pipeline dehumidifier for clean rooms

Abstract

The application relates to the technical field of dehumidifiers, and discloses a fresh air system pipeline dehumidifier for a clean room, which comprises a bottom plate, a first shell arranged on the top surface of the bottom plate, a clamping plate arranged on the top surface of the first shell, an outdoor air inlet arranged on the outer wall of the first shell, a fan arranged in the first shell, an outdoor air outlet arranged on the outer wall of the first shell, an indoor fresh air inlet arranged on the outer wall of the first shell, an indoor air outlet arranged on the outer wall of the first shell, a filter screen mounting seat arranged in the bottom plate, a high-efficiency filter screen arranged in the filter screen mounting seat, and a dehumidification mechanism arranged in the first shell. The fresh air system pipeline dehumidifier for the clean room can effectively reduce the high-altitude operation risk during cleaning of the high-efficiency filter screen and reduce the influence of the accumulation of dust and bacteria on the high-efficiency filter screen on the performance of the fresh air system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dehumidifiers, and particularly relates to a fresh air system pipeline dehumidifier for clean rooms. BACKGROUND

[0002] In a clean room environment, air quality is crucial to the precision and safety of production and experiments, therefore, fresh air system pipeline dehumidifiers have been widely used in such environments, and their main function is to ensure that the air in the clean room is kept at an appropriate humidity and cleanliness through dehumidification and filtration.

[0003] However, as the use time increases, the filter screen inside the fresh air system pipeline dehumidifier is prone to accumulate dust and bacteria, if the filter screen is not cleaned in time, the dust and bacteria in the air are easy to accumulate inside the indoor ventilation pipeline, further increasing the difficulty of cleaning, which not only affects the air purification effect, but also may have a negative impact on the air quality of the entire clean room.

[0004] Traditional fresh air system pipeline dehumidifiers are usually installed at the ceiling position of the indoor top, this design makes the maintenance work, especially the cleaning of the filter screen, relatively difficult, every time the filter screen is cleaned or replaced, professional personnel need to use high-altitude equipment, which not only increases the difficulty and risk of cleaning work, but also increases the maintenance cost. SUMMARY

[0005] In view of the problem that the existing fresh air system pipeline dehumidifier is usually installed at the ceiling position of the indoor top, this design makes the maintenance work, especially the cleaning of the filter screen, relatively difficult, a fresh air system pipeline dehumidifier for clean rooms is provided.

[0006] The present application provides a fresh air system pipeline dehumidifier for clean rooms, which aims to reduce the risk of high-altitude work during cleaning of the high-efficiency filter screen, and reduce the influence of dust and bacteria accumulation on the high-efficiency filter screen on the performance of the fresh air system.

[0007] The technical scheme of the present application is: a fresh air system pipeline dehumidifier for a clean room, comprising a bottom plate, a first shell arranged on the top surface of the bottom plate, a clamping plate arranged on the top surface of the first shell, an outdoor air inlet arranged on the outer wall of the first shell, a fan arranged in the first shell, an outdoor air outlet arranged on the outer wall of the first shell, an indoor fresh air inlet arranged on the outer wall of the first shell, an indoor air outlet arranged on the outer wall of the first shell, a filter screen mounting seat arranged in the bottom plate, a high-efficiency filter screen arranged in the filter screen mounting seat, and a dehumidification mechanism arranged in the first shell, and the top surface of the filter screen mounting seat is tightly attached to the bottom surface of the clamping plate, the top surface of the clamping plate is provided with a second shell, the top surface of the second shell is provided with a top plate, the outer wall of the second shell is provided with a lifting lug, the top surface of the bottom plate is provided with a mounting plate, the top surface of the bottom plate is provided with an L-shaped plate, and the inner wall of the L-shaped plate is slidably attached to the outer wall of the filter screen mounting seat, the bottom surface of the filter screen mounting seat is provided with a sealing plate, and the bottom surface of the bottom plate is provided with a clamping groove, and the outer wall of the sealing plate is slidably attached to the inner wall of the clamping groove.

[0008] Further, the top surface of the clamping plate is provided with a first fixing seat, and the rotating rod is rotatably installed on the outer wall of the first fixing seat, the top surface of the clamping plate is provided with a second fixing seat, the outer wall of the second fixing seat is provided with a worm, and the end of the worm away from the second fixing seat is rotatably connected to the inner wall of the second shell, the rod wall of the rotating rod is sleeved with a worm wheel which is mutually adapted to the rod wall of the worm, the side of the second fixing seat away from the worm is provided with a motor, and the output shaft of the motor is fixedly connected to the axial end of the worm.

[0009] Further, the inside of the second shell is provided with a control element, the top surface of the clamping plate is provided with a first through slot for the control element, the top surface of the clamping plate is provided with a second through slot for the control element, the top surface of the clamping plate is provided with a limiting plate, and the outer wall of the limiting plate is slidably attached to the outer wall of the control element.

[0010] Further, the bottom of the bottom plate is elastically mounted with a baffle plate for blocking the sealing plate, and the bottom surface of the bottom plate is provided with a sliding groove for the sliding of the baffle plate.

[0011] Further, the bottom surface of the baffle plate is inclined and mutually adapted to the top surface of the sealing plate.

[0012] Further, the inner wall of the first shell is provided with a first elastic element, and the end of the first elastic element away from the inner wall of the first shell is fixedly connected to the outer wall of the baffle plate.

[0013] Furthermore, the control components include a drive section, a horizontal section, and a push section. The bottom end of the push section corresponds to the top surface of the filter mounting base. The top surface of the baffle is inclined. The bottom end of the drive section is adapted to the top surface of the baffle. A third through groove is provided on the bottom surface of the base plate for the drive section to pass through.

[0014] Furthermore, the control component also includes a rack segment, and two rotating rods are provided, one of which has a gear sleeved on its rod wall, and the outer wall of the rack segment meshes with the outer wall of the gear.

[0015] Furthermore, a second elastic element is provided on the top surface of the horizontal segment, and a third elastic element is provided on the bottom surface of the horizontal segment.

[0016] Furthermore, the bottom surface of the base plate is provided with a guide plate for guiding the sealing plate.

[0017] The beneficial effects of this invention are:

[0018] 1. By controlling the output shaft rotation of the motor, users can easily move the filter mounting base up and down, facilitating the cleaning of the high-efficiency filter. Especially when the high-efficiency filter is stuck due to dust accumulation, the push-pull design of the control component ensures that the high-efficiency filter can smoothly detach and return to the first housing, thereby reducing the complexity of manual operation during the cleaning process, greatly improving maintenance efficiency, and reducing the risk of working at heights. This reflects a full consideration for user safety and convenience. This device uses connecting parts to raise and lower the high-efficiency filter. Compared with the use of traditional electric screws or electric telescopic cylinders, it does not occupy normal indoor floor space, making this device more practical.

[0019] 2. When the filter mounting base is fully retracted into the first housing, the sealing plate engages in the slot, further reinforcing and supporting the installation of the filter mounting base. The elastic force of the first elastic element can drive the baffle to reset, ensuring the stability of the baffle supporting the sealing plate. This effectively prevents the filter mounting base and the high-efficiency filter from accidentally falling off, improving the safety and reliability of the equipment. It also effectively reduces the fatigue of the connecting parts and improves the durability of the device.

[0020] 3. When the control component descends to its lowest position, the rack section of the control component temporarily separates from the gear. At this time, under the elastic force of the third elastic element, the control component can be driven to move upward, and the rack section and gear re-engage. When the gear rotates in the opposite direction, it can drive the control component to rise. When the control component rises to its highest position, under the elastic force of the second elastic element, the rack section of the control component can be made to contact the gear. When the gear rotates, it can drive the control component to descend again, further improving the convenience and practicality of this device. Attached Figure Description

[0021] Figure 1 This is a perspective view of the present invention;

[0022] Figure 2 This is a schematic diagram of the interior of the first housing in this invention;

[0023] Figure 3 This is a schematic diagram of the interior of the second housing in this invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged view of point A in the middle;

[0025] Figure 5 This is a perspective view of the filter mounting base in this invention;

[0026] Figure 6 This is a perspective view of the J-shaped plate in this invention;

[0027] Figure 7 This is a schematic diagram of the installation of the guide plate in this invention;

[0028] Figure 8 This is a perspective view of the control component in this invention;

[0029] Figure 9 This is a perspective view of the baffle in this invention;

[0030] Figure 10 This is a perspective view of the base plate in this invention.

[0031] In the picture:

[0032] 1. Base plate; 2. First housing; 3. Clamping plate; 4. Top plate; 5. Dehumidification mechanism; 6. Second housing; 7. Lifting lug; 8. Outdoor air inlet; 9. Fan; 10. Outdoor air outlet; 11. Indoor fresh air inlet; 12. Indoor exhaust outlet; 13. Mounting plate; 14. Filter mounting base; 15. L-shaped plate; 16. High-efficiency filter; 17. Rotating rod; 18. Connecting piece; 19. Sealing ring; 20. First fixed base; 21. Motor; 22. Worm gear; 23. 24. Worm gear; 25. Gear; 26. Control component; 27. First through slot; 28. Second through slot; 29. ​​Fixing cover; 20. J-shaped plate; 31. Second fixing seat; 32. Slot; 33. Sealing plate; 34. Guide plate; 35. Baffle; 36. First elastic element; 37. Slide groove; 38. Third through slot; 39. Rack section; 40. Drive section; 41. Horizontal section; 42. Pushing section; 43. Second elastic element; 44. Third elastic element; 45. Limiting plate. Detailed Implementation

[0033] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0034] Example 1, referring to Figures 1-10 The first embodiment of the present invention provides a duct dehumidifier for a fresh air system in a clean room, including a base plate 1, a first housing 2 fixedly installed on the top surface of the base plate 1, a clamping plate 3 fixedly installed on the top surface of the first housing 2, an outdoor air inlet 8 disposed on the outer wall of the first housing 2, a fan 9 disposed inside the first housing 2, an outdoor air outlet 10 disposed on the outer wall of the first housing 2, an indoor fresh air inlet 11 disposed on the outer wall of the first housing 2, an indoor air outlet 12 disposed on the outer wall of the first housing 2, a filter mounting base 14 detachably installed inside the base plate 1, a high-efficiency filter 16 snapped into the filter mounting base 14, and a dehumidification mechanism 5 disposed inside the first housing 2, wherein the top surface of the filter mounting base 14 is tightly fitted with the bottom surface of the clamping plate 3.

[0035] Specifically, ventilation ducts are connected to the outdoor air inlet 8, outdoor air outlet 10, indoor fresh air inlet 11, and indoor exhaust air outlet 12 on the side away from the first housing 2. The high-efficiency filter 16 corresponds to the position of the outdoor air inlet 8. In addition, the dehumidification mechanism 5 includes a condenser (evaporator), a compressor, a total heat exchange core, an electric air valve, and a drain outlet, all located inside the first housing 2.

[0036] The working principle of the fresh air system duct dehumidifier is as follows: The fresh air system draws in outside air through the outdoor air inlet 8 and the connected ventilation duct into the first housing 2. The air first flows through the high-efficiency filter 16 installed in the system to remove dust, particulate matter, and some microorganisms from the indoor air, ensuring the cleanliness of the air delivered to the clean room. After passing through the high-efficiency filter 16, the air enters the core part of the dehumidification mechanism 5. Here, the air is cooled by passing through the condenser (evaporator). The condenser (evaporator) lowers the air temperature, causing the water vapor in the air to condense into liquid water, achieving the purpose of dehumidification. The condensate is collected and discharged from the system through the drain outlet. To avoid excessively low air temperature, the dehumidified and cooled air can be heat-recovered through a total heat exchange core. The total heat exchange core exchanges heat with the exhaust air in the building to increase the temperature of the fresh air and maintain suitable indoor temperature conditions. Electric air valves are used to regulate airflow and control the air volume as needed to further ensure that the air supplied to the clean room meets the temperature and humidity requirements. The treated air is driven by fan 9 and delivered to the clean room through the ventilation duct connected to the indoor fresh air inlet 11. To maintain indoor air flow and positive pressure, the indoor exhaust air is discharged through indoor exhaust vent 12 and released to the external environment.

[0037] Reference Figure 2A second housing 6 is fixedly installed on the top surface of the clamping plate 3. A top plate 4 is fixedly installed on the top surface of the second housing 6. A lifting lug 7 is fixedly installed on the outer wall of the second housing 6. An mounting plate 13 is fixedly installed on the top surface of the bottom plate 1. An L-shaped plate 15 is fixedly installed on the top surface of the bottom plate 1, and the inner wall of the L-shaped plate 15 slides against the outer wall of the filter screen mounting base 14. A sealing plate 32 is fixedly installed on the bottom surface of the filter screen mounting base 14. A slot 31 is opened on the bottom surface of the bottom plate 1, and the outer wall of the sealing plate 32 slides against the inner wall of the slot 31.

[0038] Specifically, the second housing 6, top plate 4 and hanging lug 7 are designed to provide installation space for the fresh air system duct dehumidifier. After the filter mounting base 14 and the high-efficiency filter 16 are installed, the outer wall of the filter mounting base 14 slides and seals with the clamping plate 3 and L-shaped plate 15, allowing air to pass smoothly through the high-efficiency filter 16.

[0039] Reference Figures 3-4 A rotating rod 17 is rotatably mounted on the top of the clamping plate 3. A connector 18 is wound around the rod wall of the rotating rod 17. A sealing ring 19 for the connector 18 to pass through is fixedly connected to the top surface of the clamping plate 3. A through hole for the connector 18 to pass through is opened on the top surface of the clamping plate 3. One end of the connector 18 is fixedly connected to the rod wall of the rotating rod 17, and the other end of the connector 18 is connected to the filter screen mounting base 14.

[0040] Specifically, the sealing ring 19 can guide the connector 18, which is conducive to the rotation of the rotating rod 17 to wind up the connector 18. The connector 18 can be a common connecting rope or connecting chain in the prior art. This device uses the connector 18 to raise and lower the high-efficiency filter 16. Compared with the use of traditional electric screws or electric telescopic cylinders, it can not occupy the normal use space of the indoor floor, making the device more practical.

[0041] Reference Figure 5 A fixing cover 28 is fixedly connected to the outer wall of the filter mounting base 14. A J-shaped plate 29 is inserted inside the fixing cover 28, and the outer wall of the J-shaped plate 29 slides against the inner wall of the fixing cover 28. The other end of the connector 18 is fixedly connected to the top surface of the J-shaped plate 29.

[0042] Specifically, the installation and removal of the connector 18 and the filter mounting base 14 can be achieved through the cooperation between the fixed cover 28 and the J-shaped plate 29, which further improves the convenience of cleaning the high-efficiency filter 16.

[0043] Reference Figures 3-4A first fixed seat 20 is fixedly connected to the top surface of the clamping plate 3, and a rotating rod 17 is rotatably installed on the outer wall of the first fixed seat 20. A second fixed seat 30 is fixedly connected to the top surface of the clamping plate 3. A worm 22 is rotatably installed on the outer wall of the second fixed seat 30, and the end of the worm 22 away from the second fixed seat 30 is rotatably connected to the inner wall of the second housing 6. A worm wheel 23 that is compatible with the worm wall of the rotating rod 17 is sleeved on the rod wall of the worm 22. A motor 21 is fixedly installed on the side of the second fixed seat 30 away from the worm 22, and the output shaft of the motor 21 is fixedly connected to the axial end of the worm 22.

[0044] Specifically, the electric motor 21 can be a common drive motor in the prior art. Its specific model can be determined according to actual use requirements, which will not be elaborated here. By controlling the output shaft of the electric motor 21 to rotate, the worm 22 can be driven to rotate. The rotation of the worm 22 drives the worm wheel 23 to rotate. Through the unidirectional transmission between the worm 22 and the worm wheel 23, the stability of the device during use can be further improved, effectively preventing the filter screen mounting base 14 from falling accidentally. The rotation of the worm wheel 23 drives the rotating rod 17 to rotate, which in turn can release or rewind the connecting piece 18.

[0045] Reference Figure 7 The bottom surface of the base plate 1 is fixedly connected to a guide plate 33 for guiding the sealing plate 32.

[0046] Specifically, the guide plate 33 can effectively correct the upward trajectory of the filter mounting base 14, so that the filter mounting base 14 can smoothly pass through the slot 31 and enter the interior of the first housing 2.

[0047] Example 2, refer to Figures 1-10 This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that: a control component 25 is slidably installed inside the second housing 6; a first through groove 26 for the control component 25 to pass through is opened on the top surface of the clamping plate 3; a second through groove 27 for the control component 25 to pass through is opened on the top surface of the clamping plate 3; a limiting plate 44 is fixedly connected to the top surface of the clamping plate 3; and the outer wall of the limiting plate 44 is slidably attached to the outer wall of the control component 25.

[0048] Specifically, through the cooperation between the first through slot 26, the second through slot 27 and the limiting plate 44, it can be ensured that the control component 25 only performs vertical lifting and lowering movements.

[0049] Reference Figures 7-9A baffle 34 for blocking the sealing plate 32 is elastically installed on the bottom of the base plate 1, and a sliding groove 36 for the baffle 34 to slide is provided on the bottom surface of the base plate 1. The bottom surface of the baffle 34 is inclined and adapted to the top surface of the sealing plate 32. A first elastic member 35 is fixedly connected to the inner wall of the first housing 2, and the end of the first elastic member 35 away from the inner wall of the first housing 2 is fixedly connected to the outer wall of the baffle 34.

[0050] Specifically, by controlling the movement of the baffle 34, the installation of the filter mounting base 14 can be further reinforced and supported, preventing the filter mounting base 14 and the high-efficiency filter 16 from accidentally falling off, thereby improving the safety and reliability of the equipment.

[0051] When the rotating rod 17 rotates and drives the filter mounting base 14 to rise, the outer wall of the filter mounting base 14 presses against the bottom surface of the baffle 34, which can drive the baffle 34 to slide away from the filter mounting base 14. At this time, the baffle 34 presses against the first elastic member 35. When the filter mounting base 14 is completely retracted into the first housing 2, the sealing plate 32 is engaged in the slot 31. Through the elastic force of the first elastic member 35, the baffle 34 can be reset. The baffle 34 can reinforce and support the sealing plate 32, effectively reducing the fatigue of the connector 18 and improving the durability of the device.

[0052] Reference Figures 8-9 The control component 25 includes a drive section 39, a horizontal section 40 and a push section 41, and the bottom end of the push section 41 corresponds to the top surface of the filter mounting base 14. The top surface of the baffle 34 is inclined, the bottom end of the drive section 39 is adapted to the top surface of the baffle 34, and the bottom surface of the base plate 1 is provided with a third through groove 37 for the drive section 39 to pass through.

[0053] Specifically, through the cooperation between the push section 41 and the second through groove 27, when it is necessary to clean the high-efficiency filter 16, the filter mounting base 14 can be pushed down to prevent the high-efficiency filter 16 and the filter mounting base 14 from getting stuck or jammed during descent due to the accumulation of dust on the surface. This design allows the filter mounting base 14 to smoothly detach from the inside of the first housing 2, ensuring the smooth descent of the high-efficiency filter 16. The third through groove 37 provides descent space for the drive section 39 of the control component 25.

[0054] By controlling the descent of the control component 25, the drive section 39 can push the baffle 34 to move away from the sealing plate 32, so that the baffle 34 no longer obstructs the sealing plate 32. Subsequently, the two push sections 41 can assist in pushing the filter screen mounting base 14 down, so that the filter screen mounting base 14 can smoothly detach from the interior of the first housing 2. The rest of the structure is the same as that of Embodiment 1.

[0055] Example 3, referring to Figures 1-10This is the third embodiment of the present invention. The difference between this embodiment and the second embodiment is that the control component 25 further includes a rack segment 38, and two rotating rods 17 are provided. One of the rotating rods 17 has a gear 24 sleeved on its rod wall, and the outer wall of the rack segment 38 meshes with the outer wall of the gear 24.

[0056] Specifically, when the output shaft of the motor 21 rotates, driving the rotating rod 17 to rotate, the gear 24 rotates, causing the rack section 38 of the control component 25 to descend. Thus, the two push sections 41 can assist in pushing the filter screen mounting seat 14 to descend, allowing the filter screen mounting seat 14 to smoothly detach from the first housing 2. When the output shaft of the motor 21 rotates in the opposite direction, the gear 24 rotates in the opposite direction, driving the rack section 38 of the control component 25 to rise, causing the control component 25 to reset.

[0057] Reference Figure 8 The top surface of the horizontal segment 40 is fixedly connected to a second elastic element 42, and the bottom surface of the horizontal segment 40 is fixedly connected to a third elastic element 43.

[0058] When the control member 25 descends to its lowest position, the rack segment 38 of the control member 25 temporarily disengages from the gear 24. At this time, under the elastic force of the third elastic member 43, the control member 25 can be driven to move upward, and the rack segment 38 and the gear 24 re-engage. When the gear 24 rotates in the opposite direction, it can drive the control member 25 to rise. When the control member 25 rises to its highest position, under the elastic force of the second elastic member 42, the rack segment 38 of the control member 25 can contact the gear 24. When the gear 24 rotates, it can drive the control member 25 to descend again, further improving the convenience and practicality of the device. The remaining structure is the same as that of Embodiment 2.

[0059] Based on Embodiments 1-3, the working principle of the present invention is as follows:

[0060] The fresh air system draws in outside air through the outdoor air inlet 8 and connected ventilation ducts into the first housing 2. The air first flows through a high-efficiency filter 16 installed in the system to remove dust, particulate matter, and some microorganisms from the indoor air, ensuring the cleanliness of the air delivered to the cleanroom. After passing through the high-efficiency filter 16, the air enters the core of the dehumidification mechanism 5. Here, the air is cooled by passing through a condenser (evaporator). The condenser (evaporator) lowers the air temperature, causing water vapor in the air to condense into liquid water, achieving dehumidification. The condensate is collected and discharged from the system through a drain outlet to prevent the air temperature from rising too high. If the temperature is too low, the dehumidified and cooled air can be heat recovered through the total heat exchange core. The total heat exchange core exchanges heat with the exhaust air in the building to increase the temperature of the fresh air and maintain suitable indoor temperature conditions. The electric air valve is used to regulate the airflow and control the air volume according to the demand, further ensuring that the air supplied to the clean room meets the temperature and humidity requirements. The treated air is driven by the fan 9 and delivered to the clean room through the ventilation duct connected to the indoor fresh air inlet 11. In order to maintain indoor air flow and positive pressure, the indoor exhaust air is discharged through the indoor exhaust vent 12 and released to the external environment.

[0061] When the high-efficiency filter 16 needs to be cleaned, the output shaft of the motor 21 is rotated, which drives the worm gear 22 to rotate. The rotation of the worm gear 22 drives the worm wheel 23 to rotate, which in turn drives the rotating rod 17 to rotate. The rotation of the gear 24 causes the rack section 38 of the control component 25 to descend. The drive section 39 can push the baffle 34 to move away from the sealing plate 32, so that the baffle 34 no longer obstructs the sealing plate 32. Then, the two push sections 41 can assist in pushing the filter mounting seat 14 to descend, so that the filter mounting seat 14 can smoothly detach from the first housing 2, preventing the high-efficiency filter 16 and the filter mounting seat 14 from getting stuck or jammed during descent due to the accumulation of dust on the surface.

[0062] Once the filter mounting base 14 is lowered to the indoor floor, people can separate the filter mounting base 14 from the connector 18 and clean the filter mounting base 14, further improving the ease of use of this device.

[0063] After the filter screen is cleaned, reconnect the filter screen mounting base 14 to the connector 18, and then control the output shaft of the motor 21 to rotate in the opposite direction, driving the filter screen mounting base 14 to rise. At the same time, when the gear 24 rotates in the opposite direction, it can drive the control component 25 to rise and reset. Through the set guide plate 33, the rising trajectory of the filter screen mounting base 14 can be effectively corrected.

[0064] When the outer wall of the filter mounting base 14 presses against the bottom surface of the baffle 34, it can drive the baffle 34 to slide away from the filter mounting base 14. The filter mounting base 14 can smoothly enter the interior of the first housing 2 through the slot 31. At this time, the baffle 34 presses against the first elastic member 35. When the filter mounting base 14 is completely retracted into the interior of the first housing 2, the sealing plate 32 is engaged in the slot 31. Through the elastic force of the first elastic member 35, the baffle 34 can be reset. The baffle 34 can reinforce and support the sealing plate 32, effectively reducing the fatigue of the connector 18 and improving the durability of the device.

[0065] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A fresh air system duct dehumidifier for clean rooms, comprising a base plate, a first casing arranged on the top surface of the base plate, a clamping plate arranged on the top surface of the first casing, an outdoor air inlet arranged on the outer wall of the first casing, a fan arranged in the first casing, an outdoor air outlet arranged on the outer wall of the first casing, an indoor fresh air inlet arranged on the outer wall of the first casing, an indoor air outlet arranged on the outer wall of the first casing, a filter mounting seat arranged in the base plate, a high-efficiency filter arranged in the filter mounting seat, and a dehumidification mechanism arranged in the first casing, and the top surface of the filter mounting seat is tightly attached to the bottom surface of the clamping plate, characterized in that: The top surface of the clamping plate is provided with a second shell, the top surface of the second shell is provided with a top plate, the outer wall of the second shell is provided with a lifting lug, the top surface of the bottom plate is provided with a mounting plate, the top surface of the bottom plate is provided with an L-shaped plate, and the inner wall of the L-shaped plate is in sliding fit with the outer wall of the filter screen mounting seat, the bottom surface of the filter screen mounting seat is provided with a sealing plate, the bottom surface of the bottom plate is provided with a clamping groove, and the outer wall of the sealing plate is in sliding fit with the inner wall of the clamping groove. The top of the clamping plate is provided with a rotating rod, the rod wall of the rotating rod is wound with a connecting piece, the top surface of the clamping plate is provided with a sealing ring through which the connecting piece passes, the top surface of the clamping plate is provided with a through hole through which the connecting piece passes, and one end of the connecting piece is fixedly connected with the rod wall of the rotating rod, and the other end of the connecting piece is connected with the filter screen mounting seat. The outer wall of the filter screen mounting seat is provided with a fixing cover, the inside of the fixing cover is inserted with a J-shaped plate, and the outer wall of the J-shaped plate is in sliding fit with the inner wall of the fixing cover, and the other end of the connecting piece is fixedly connected with the top surface of the J-shaped plate. The inside of the second shell is provided with a control piece, the top surface of the clamping plate is provided with a first through groove through which the control piece passes, the top surface of the clamping plate is provided with a second through groove through which the control piece passes, and the top surface of the clamping plate is provided with a limiting plate, and the outer wall of the limiting plate is in sliding fit with the outer wall of the control piece. The top surface of the clamping plate is provided with a first fixing seat, and the rotating rod is rotatably installed on the outer wall of the first fixing seat, the top surface of the clamping plate is provided with a second fixing seat, the outer wall of the second fixing seat is provided with a worm, one end of the worm away from the second fixing seat is rotatably connected with the inner wall of the second shell, the rod wall of the rotating rod is sleeved with a worm wheel which is mutually matched with the rod wall of the worm, and the side of the second fixing seat away from the worm is provided with a motor, and the output shaft of the motor is fixedly connected with the axial end of the worm.

2. The fresh air system duct dehumidifier for clean rooms according to claim 1, characterized in that: The bottom of the bottom plate is elastically mounted with a baffle for blocking the sealing plate, and the bottom surface of the bottom plate is provided with a sliding groove for sliding of the baffle.

3. The fresh air system duct dehumidifier for clean rooms according to claim 2, characterized in that: The bottom surface of the baffle is obliquely arranged and mutually matched with the top surface of the sealing plate.

4. The fresh air system duct dehumidifier for clean rooms according to claim 3, characterized in that: The inner wall of the first shell is provided with a first elastic piece, and one end of the first elastic piece away from the inner wall of the first shell is fixedly connected with the outer wall of the baffle.

5. The fresh air system duct dehumidifier for clean rooms according to claim 4, characterized in that: The control piece comprises a driving section, a horizontal section and a pushing section, the bottom end of the pushing section corresponds to the top surface of the filter screen mounting seat, the top surface of the baffle is obliquely arranged, the bottom end of the driving section is mutually matched with the top surface of the baffle, and the bottom surface of the bottom plate is provided with a third through groove through which the driving section passes.

6. The fresh air system duct dehumidifier for clean rooms according to claim 5, characterized in that: The control piece further comprises a rack section, and the rotating rod is provided with two, the rod wall of one of the rotating rods is sleeved with a gear, and the outer wall of the rack section is in meshing engagement with the outer wall of the gear.

7. The fresh air system duct dehumidifier for clean rooms according to claim 6, characterized in that: The top surface of the horizontal section is provided with a second elastic piece, and the bottom surface of the horizontal section is provided with a third elastic piece.

8. The ducted dehumidifier for a fresh air system of a cleanroom according to claim 1, characterized by: The bottom surface of the bottom plate is provided with a guide plate for guiding the sealing plate.

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