Liquid tank type high-efficiency filter for clean room
By introducing an aluminum alloy mounting plate and an adjustment plate structure into the liquid tank type HEPA filter, the liquid tank depth can be flexibly adjusted and the sealing liquid can be replenished, which solves the problem of reduced sealing performance caused by fixed liquid tank depth and improves the adaptability and service life of the equipment.
Patent Information
- Application Number
- CN202422841161.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-21
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-21
AI Technical Summary
The existing liquid tank type high efficiency filter has a fixed liquid tank depth and cannot be adjusted according to the pressure and air flow speed of different working environments, resulting in sealing liquid loss and performance degradation, increasing maintenance difficulty and cost.
A structure including an aluminum alloy mounting plate, a filter box, an adjustment plate and a spring was designed. By adjusting the screws and the spring, the depth of the liquid tank can be adjusted to adapt to different environmental pressures and air flow speeds. The sealing liquid can also be replenished in time to enhance the sealing performance.
The flexibly adjustable depth of the liquid tank is achieved, the sealing effect and the stability of the filter box are improved, the service life is extended and the maintenance cost is reduced.
Smart Images

Figure CN223366474U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid tank type filter detection, in particular to a liquid tank type high efficiency filter for a clean room. Background Art
[0002] The liquid tank type high efficiency filter, also known as the liquid tank sealed filter, is a type of partition-free high efficiency filter. It has the following characteristics and advantages: good sealing performance (liquid tank sealing is a sealing method that is superior to the commonly used mechanical compression device in China. It is easy to install and the sealing is very reliable. It is a high efficiency filter sealing method commonly used internationally. It has high sealing performance and good leak-proof performance, which can effectively reduce air leakage), high filtration efficiency (it can effectively filter tiny particles in the air. It is an ideal terminal filter for industrial clean rooms and biological clean rooms. It is also suitable for supporting use with other purification equipment). The filtration principles of the liquid tank type high efficiency filter are mainly the following: inertial collision (when the particles in the air pass through the filter, they will collide with the fibers in the filter due to inertia and be intercepted), diffusion (when particles smaller than the filter pore size pass through the filter, they will collide with the fibers and be adsorbed due to Brownian motion), and electrostatic adsorption; However, the liquid tank type high efficiency filters on the market still have the following problems:
[0003] The depth of the liquid tank of the existing liquid tank type high-efficiency filter is usually fixed and cannot be adjusted according to the different pressures and airflow speeds generated in different working environments. Moreover, after the filter box has been used for a long time, the sealing liquid may be lost or the performance may deteriorate. The fixed-depth liquid tank may increase the difficulty and cost of maintenance because the depth cannot be adjusted to replenish the sealing liquid.
[0004] In response to the above problems, an innovative design was carried out based on the original liquid tank type high efficiency filter. Utility Model Content
[0005] The purpose of the present utility model is to provide a liquid trough type high efficiency filter for clean rooms, so as to solve the problem that the depth of the liquid trough of the existing liquid trough type high efficiency filter proposed in the above background technology is usually fixed and cannot be adjusted according to the different pressures and air flow velocities generated in different working environments; and when the filter box is used for a long time, the sealing liquid may be lost or the performance may be degraded, and the fixed depth liquid trough may increase the difficulty and cost of maintenance because the depth cannot be adjusted to replenish the sealing liquid.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solution: a liquid trough type high-efficiency filter for a clean room, comprising an aluminum alloy mounting plate and a filter box, the top of the aluminum alloy mounting plate is fixedly connected to the filter box, a liquid trough is provided on the aluminum alloy mounting plate, the middle of the liquid trough is movably connected to an adjustment plate, springs are fixedly installed at the bottom of the four sides of the adjustment plate, rectangular plates are movably connected on both sides of the aluminum alloy mounting plate, a first threaded hole is provided through one side of the rectangular plate, an adjustment screw is movably inserted through the middle of the first threaded hole, and the bottom of the adjustment screw is movably in contact with the top of the adjustment plate.
[0007] Preferably, the liquid tank and the adjustment plate are both trapezoidal in shape as a whole.
[0008] Preferably, the length of the spring in an undeformed state is equal to the depth of the liquid tank.
[0009] Preferably, the four corners of the aluminum alloy mounting plate are provided with limiting grooves, the limiting grooves are communicated with the liquid tank, the four corners of the adjustment plate are fixedly mounted with limiting blocks, and the limiting blocks are movably connected to the limiting grooves.
[0010] Preferably, mounting areas are provided on both sides of the aluminum alloy mounting plate, second threaded holes are provided on the mounting areas, a through hole is provided on the other side of the rectangular plate, and fixing screws are inserted between the through hole and the second threaded hole.
[0011] Compared with the prior art, the beneficial effects of the present invention are: the liquid tank type high efficiency filter for clean room,
[0012] 1. By turning the adjusting screw in the first threaded hole, with the cooperation of the spring, the adjusting plate can be moved up and down in the liquid tank, thereby adjusting the depth of the upper filling part of the liquid tank, so that it can be adjusted according to the different pressures and air flow speeds generated in different working environments, thereby enhancing adaptability; at the same time, when the sealing liquid evaporates, the amount of sealing liquid can be replenished or adjusted in time, thereby optimizing the sealing performance and extending the service life of the filter box, thereby reducing the need for frequent replacement of the filter box due to sealing failure, and reducing the manpower, material and time costs of maintenance; when factors such as ambient temperature and humidity change significantly, the changes in the physical properties of the sealing liquid can be compensated by adjusting the upper filling part of the liquid tank to ensure stable sealing performance.
[0013] 2. By setting the liquid tank into a trapezoidal shape, compared with the traditional rectangular shape, with the same frame width, a larger contact area between the liquid tank and the filter box frame is provided, thereby enhancing the sealing effect; at the same time, it helps to more evenly distribute the pressure on the filter box, reduce local pressure concentration, and improve the overall stability and service life of the filter box; and the trapezoidal shape is easier to position and align during installation. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is the overall front view of the utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the liquid tank of the utility model;
[0016] Figure 3 This is a schematic diagram of the connection structure of the adjustment plate of the utility model;
[0017] Figure 4 This is a schematic diagram of the connection structure of the extension adjustment screw and the fixing screw of the utility model.
[0018] In the figure: 1. Aluminum alloy mounting plate; 2. Filter box; 3. Liquid tank; 4. Adjustment plate; 5. Spring; 6. Rectangular plate; 7. First threaded hole; 8. Adjustment screw; 9. Limiting groove; 10. Limiting block; 11. Mounting area; 12. Second threaded hole; 13. Through hole; 14. Fixing screw. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] See also Figure 1-4 The utility model provides a technical solution: a liquid trough type high efficiency filter for a clean room, comprising an aluminum alloy mounting plate 1 and a filter box body 2, the top of the aluminum alloy mounting plate 1 is fixedly connected to the filter box body 2, a liquid trough 3 is provided on the aluminum alloy mounting plate 1, the middle of the liquid trough 3 is movably connected to the adjustment plate 4, the four sides of the adjustment plate 4 are fixedly installed with springs 5, the two sides of the aluminum alloy mounting plate 1 are movably connected to the rectangular plate 6, a first threaded hole 7 is penetrated on one side of the rectangular plate 6, an adjusting screw 8 is movably inserted in the middle of the first threaded hole 7, and the bottom of the adjusting screw 8 is movably contacted with the top of the adjusting plate 4; the above components are used in combination to realize the height adjustment of the adjusting plate 4 in the liquid trough 3, and thus the depth of the filling part at the top of the liquid trough 3 can be adaptively adjusted.
[0021] The liquid tank 3 and the adjustment plate 4 are both trapezoidal in shape as a whole; the trapezoidal shape provides a larger contact area between the liquid tank 3 and the frame of the filter box 2 under the same frame width compared to the traditional rectangular shape, thereby enhancing the sealing effect; at the same time, it helps to more evenly distribute the pressure on the filter box 2, reduce local pressure concentration, and improve the overall stability and service life of the filter box 2.
[0022] The length of the spring 5 in the undeformed state is equal to the depth of the liquid tank 3; the length setting between the spring 5 and the liquid tank 3 can ensure that the spring 5 always forms a resistance force on the adjustment plate 4 in the liquid tank 3, thereby providing a guarantee for the bottom of the adjustment plate 4 to be subjected to force at all times, and further providing a guarantee for the adjustment and fixation of the adjustment plate 4.
[0023] Limiting grooves 9 are provided at the four corners of the aluminum alloy mounting plate 1, which are connected to the liquid tank 3. Limiting blocks 10 are fixedly installed at the four corners of the adjusting plate 4, and the limiting blocks 10 are movably connected to the limiting grooves 9. The limiting grooves 9 and the limiting blocks 10 are used in conjunction with each other to further limit the adjusting plate 4, thereby increasing the stability of the connection between the adjusting plate 4 and the liquid tank 3, avoiding shaking of the adjusting plate 4 during operation, and ensuring that the sealing is not affected.
[0024] Mounting areas 11 are provided on both sides of the aluminum alloy mounting plate 1, and second threaded holes 12 are provided on the mounting areas 11. A through hole 13 is provided on the other side of the rectangular plate 6, and fixing screws 14 are inserted between the through hole 13 and the second threaded hole 12. The setting of the mounting area 11 facilitates the rapid positioning of the installation of the rectangular plate 6, thereby speeding up the installation speed of the rectangular plate 6. With the cooperation of the fixing screws 14, the through hole 13 and the second threaded hole 12, the rectangular plate 6 can be disassembled, which facilitates the subsequent disassembly of the adjustment plate 4, thereby facilitating the replacement of the adjustment plate 4; at the same time, it facilitates the installation and disassembly of the filter box 2.
[0025] Working principle: According to Figure 1-4 , fix the filter box 2 in the middle of the aluminum alloy mounting plate 1, put the adjusting plate 4 with the spring 5 installed into the liquid tank 3, and make the spring 5 contact with the liquid tank 3. At this time, place the two rectangular plates 6 on the mounting area 11 respectively, screw the fixing screws 14 into the through holes 13 and the second threaded holes 12 to achieve the installation of the two rectangular plates 6, and then screw the adjusting screw 8 into the first threaded hole 7. At this time, the depth of screwing in the adjusting screw 8 needs to be determined according to the pressure of the use environment and the airflow speed. When the bottom end of the adjusting screw 8 moves downward, the adjusting plate 4 will transmit the force it receives to the spring 5, and the spring 5 will be deformed under the force. At this time, after stopping screwing in the adjusting screw 8, the adjusting plate 4 will remain stationary under the action of the spring 5. The filtration unit 2 is a filter element, and the filter element 2 is a filter element. The filter element 2 is a filter element, and the filter element 2 is a filter element. The filter element 2 is a filter element, and the filter element 2 is a filter element. The filter element 2 is a filter element, and the filter element 2 is a filter element. The filter element 2 is a filter element, and the filter element 2 is a filter element. The filter element 2 is a filter element, and the filter element 2 is a filter element. The filter element 2 is a filter element, and the filter element 2 is a filter element. The filter element 2 is a filter element, and the filter element 2 is a filter element. The filter element 2 is a filter element, and the filter element 2 is a filter element. The filter element 2 is a filter element, and the filter element 2 is a filter element. The filter element 2 is a filter element, and the filter element 2 is a filter element.
[0026] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A liquid tank type high efficiency filter for a clean room, comprising an aluminum alloy mounting plate (1) and a filter box (2), wherein the top of the aluminum alloy mounting plate (1) is fixedly connected to the filter box (2), and is characterized in that: A liquid tank (3) is provided on the aluminum alloy mounting plate (1), the middle of the liquid tank (3) is movably connected to an adjustment plate (4), springs (5) are fixedly installed at the bottom of the four sides of the adjustment plate (4), and rectangular plates (6) are movably connected to both sides of the aluminum alloy mounting plate (1), a first threaded hole (7) is provided through one side of the rectangular plate (6), an adjustment screw (8) is movably inserted into the middle of the first threaded hole (7), and the bottom of the adjustment screw (8) is in movably contact with the top of the adjustment plate (4).
2. A liquid tank type high efficiency filter for clean room according to claim 1, characterized in that: The liquid tank (3) and the regulating plate (4) are both trapezoidal in shape as a whole.
3. The clean room liquid tank type high efficiency filter according to claim 1, characterized in that: The length of the spring (5) in the undeformed state is equal to the depth of the liquid tank (3).
4. The clean room liquid tank type high efficiency filter according to claim 1, characterized in that: The aluminum alloy mounting plate (1) is provided with limiting grooves (9) at four corners, the limiting grooves (9) are communicated with the liquid tank (3), and limiting blocks (10) are fixedly installed at the four corners of the adjustment plate (4), and the limiting blocks (10) are movably connected to the limiting grooves (9).
5. The clean room liquid tank type high efficiency filter according to claim 1, characterized in that: The aluminum alloy mounting plate (1) has mounting areas (11) on both sides, a second threaded hole (12) is provided on the mounting area (11), a through hole (13) is provided on the other side of the rectangular plate (6), and a fixing screw (14) is inserted between the through hole (13) and the second threaded hole (12).