Modular clean room laminar air supply device
The modular cleanroom laminar flow air supply device solves the problem of pollutant retention caused by turbulent airflow in the cleanroom, and achieves uniform airflow and convenient filtration in the cleanroom, keeping the room clean.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHONGDING LIANSHENG TECH CO LTD
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-29
AI Technical Summary
The airflow pattern in existing cleanrooms is turbulent, which causes pollutants and impurities to remain and are not easily adsorbed or discharged.
The modular cleanroom laminar flow air supply device is designed by setting return air ducts and filter ducts on both sides of the main body of the cleanroom, and setting air inlets and return air outlets at the bottom of the inner wall to form laminar airflow. The return air and filter ducts are connected by connecting ventilation ducts, and air filtration and circulation are carried out in combination with ultraviolet lamps, filter boxes and fan units.
It achieves parallel, uniform, unidirectional airflow in clean indoor spaces, effectively removing particulate matter, maintaining indoor cleanliness, and facilitating the disassembly and cleaning of the filter box. The modular design makes installation and airflow adjustment convenient.
Smart Images

Figure CN224302212U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cleanroom technology, specifically a modular cleanroom laminar flow air supply device. Background Technology
[0002] A cleanroom is a well-sealed space where parameters such as air cleanliness, temperature, humidity, pressure, and noise are controlled as needed. The development of cleanrooms is closely linked to modern industry and cutting-edge technology. The environmental requirements of industries such as precision machinery and semiconductors have promoted the development of cleanroom technology.
[0003] For example, the announcement number CN208222712U is titled "Modular Cleanroom Unit Equipment". This device includes a cleanroom body, a soundproof box on the upper outer surface of the cleanroom body, a sealed door on one side of the outer surface of the cleanroom body, a sealed window on the front outer surface of the cleanroom body, and a purifier on the inner surface of the cleanroom body. It is equipped with an air circulator, a filter cover, and a temperature and humidity device, which can make the airflow speed and airflow distribution of the cleanroom body more uniform, and can effectively filter impurities in the air, making the air cleaner.
[0004] When the above-mentioned device is in use, the airflow is irregular and turbulent, which can cause pollutants and impurities to remain in one place and be difficult to adsorb and remove. Therefore, we propose a modular cleanroom laminar flow air supply device to solve the problems mentioned above. Utility Model Content
[0005] The purpose of this invention is to provide a modular cleanroom laminar flow air supply device to solve the problem mentioned in the background art that the irregular movement of airflow in a turbulent manner will cause pollutants and impurities to remain in a certain place and be difficult to adsorb and discharge.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a modular cleanroom laminar flow air supply device, comprising a cleanroom body;
[0007] Also includes:
[0008] A connecting duct is installed inside the upper part of the cleanroom main body. A return air duct is bolted to one side of the cleanroom main body and is connected to the internal ventilation duct. A filter duct is bolted to the other side of the cleanroom main body and is connected to the internal ventilation duct. A second central box is provided at the bottom of the filter duct and is connected to the filter duct. A first central box is provided at the bottom of the return air duct and is connected to the return air duct. A return air inlet is provided at the bottom of one side of the inner wall of the cleanroom main body and is connected to the internal of the second central box. An air inlet is provided at the bottom of the other side of the inner wall of the cleanroom main body and is connected to the internal of the first central box. An exhaust fan unit is installed at the bottom inside the return air duct, and an intake fan unit is installed at the bottom inside the filter duct.
[0009] Preferably, a filter box is installed in the inner middle layer of the filter pipe, and the filter box moves from the through groove on the surface of the filter pipe to the inside of the filter pipe. Tracks are symmetrically arranged on both sides of the middle layer of the filter pipe, and the filter box is movably engaged with the inside of the filter pipe through the connection with the track. A handle is installed on the outside of the filter box, and a limiting plate is installed below the through groove on the outer surface of the filter pipe. The limiting plate rotates through a rotating shaft, and the inner side of the limiting plate is movably attached to the outer surface of the filter box.
[0010] Preferably, a filter element is installed at the bottom of the filter box, and a fixing frame is installed at the top of the filter box. The upper and lower ends of the fixing frame are connected, and an activated carbon layer is provided inside the fixing frame.
[0011] Preferably, a partition plate is installed inside the groove on the surface of the return air duct, and the partition plate swings inside the groove via a rotating shaft. A rotating dial is connected to one side of the partition plate, and the rotating dial is located outside the return air duct. A filter screen is installed on the outside of the groove on the surface of the return air duct.
[0012] Preferably, an ultraviolet lamp is installed inside the ventilation duct.
[0013] Preferably, the inner surfaces of both the air inlet and the air outlet are fitted with mesh screens.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. By installing return air ducts and filter ducts on both sides of the cleanroom, and by installing a first central control box and a second central control box, and by installing air inlets and return air outlets at the bottom of opposite sides of the inner wall of the cleanroom, laminar flow is formed inside the cleanroom. This allows the air inside the cleanroom to flow in a parallel, uniform, and unidirectional manner at a stable speed, effectively removing particulate matter. A connecting ventilation duct is installed to connect the return air ducts and filter ducts, thereby enabling circulating filtration and keeping the cleanroom clean.
[0016] 2. By installing a removable filter box inside the filter duct, the internal air is filtered to a certain extent. The filter box can be pulled out to clean and replace the filter element. The return air duct and the filter duct are fixed with bolts. The modular design facilitates disassembly and installation. A partition plate is installed inside the return air duct. As needed, the partition plate can be flipped up, and the external air is drawn into the clean room through the filter screen by the exhaust fan unit. The partition plate is used to shield the return air duct and adjust the air volume, thereby adjusting the air intake volume of the external air and the air volume of the internal circulating air. Attached Figure Description
[0017] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is a second-view schematic diagram of the overall structure of this utility model;
[0019] Figure 3 This is a cross-sectional view of the overall structure of this utility model;
[0020] Figure 4 This is a cross-sectional view of the internal structure of the filter pipe of this utility model;
[0021] Figure 5 This is a cross-sectional view of the return air duct of this utility model;
[0022] In the diagram: 1. Main body of the cleanroom; 2. Connecting ventilation duct; 3. Ultraviolet lamp; 4. Return air duct; 5. Filter duct; 6. Filter box; 7. Handle; 8. Limiting plate; 9. Fixing frame; 10. Filter element; 11. Intake fan unit; 12. Track; 13. Filter screen; 14. Partition plate; 15. Exit fan unit; 16. Air inlet; 17. Return air outlet; 18. First centralized box; 19. Second centralized box; 20. Barrier net; 21. Rotating dial. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0024] This invention provides a modular cleanroom laminar flow air supply device, which includes a cleanroom body 1. The main problem addressed by this invention is that irregular, turbulent airflow can cause pollutants and impurities to become trapped in certain areas, hindering their adsorption and removal.
[0025] For the device provided by this utility model, please refer to Figure 1-5The following is a detailed introduction.
[0026] A connecting ventilation duct 2 is installed inside the upper part of the cleanroom main body 1. An ultraviolet lamp 3 is installed inside the connecting ventilation duct 2, which purifies and sterilizes the passing air. A return air duct 4 is bolted to one side of the cleanroom main body 1 and is connected to the interior of the connecting ventilation duct 2. A filter pipe 5 is bolted to the other side of the cleanroom main body 1 and is connected to the interior of the connecting ventilation duct 2. A second central box 19 is installed at the bottom of the filter pipe 5 and is connected to the filter pipe 5. A second central box 19 is installed at the bottom of the return air duct 4. The first central air chamber 18 is connected to the return air duct 4. A return air inlet 17 is provided at the bottom of one side of the inner wall of the cleanroom body 1, and the return air inlet 17 is connected to the interior of the second central air chamber 19. An air inlet 16 is provided at the bottom of the other side of the inner wall of the cleanroom body 1, and the air inlet 16 is connected to the interior of the first central air chamber 18. An exhaust fan unit 15 is installed at the bottom of the interior of the return air duct 4, and an intake fan unit 11 is installed at the bottom of the interior of the filter duct 5. A screen 20 is installed on the inner surface of both the air inlet 16 and the return air inlet 17 to intercept larger impurities and objects.
[0027] Please see Figure 4 To further explain, a filter box 6 is installed in the middle layer inside the filter pipe 5, and the filter box 6 moves from the through groove on the surface of the filter pipe 5 to the inside of the filter pipe 5. Tracks 12 are symmetrically arranged on both sides of the middle layer of the filter pipe 5, and the filter box 6 is movably engaged with the inside of the filter pipe 5 through the connection with the track 12. A handle 7 is installed on the outside of the filter box 6. A limiting plate 8 is installed below the through groove on the outer surface of the filter pipe 5. The limiting plate 8 rotates through a rotating shaft, and the inner side of the limiting plate 8 is movably attached to the outer surface of the filter box 6. A filter element 10 is installed in the bottom layer inside the filter box 6. A fixing frame 9 is installed in the upper part of the inside of the filter box 6. The upper and lower ends of the fixing frame 9 are connected, and an activated carbon layer is provided inside the fixing frame 9.
[0028] Please see Figure 5 To further explain, a partition plate 14 is installed inside the groove on the surface of the return air duct 4, and the partition plate 14 swings inside the groove via a rotating shaft. A rotating dial 21 is connected to one side of the partition plate 14, and the rotating dial 21 is located outside the return air duct 4. A filter screen 13 is installed on the outside of the groove on the surface of the return air duct 4.
[0029] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A modular cleanroom laminar flow air supply device, comprising a cleanroom body (1); Its features are: Also includes: A connecting ventilation duct (2) is installed inside the upper part of the cleanroom body (1). A return air duct (4) is bolted to one side of the cleanroom body (1), and the return air duct (4) is connected to the interior of the connecting ventilation duct (2). A filter pipe (5) is bolted to the other side of the cleanroom body (1), and the filter pipe (5) is connected to the interior of the connecting ventilation duct (2). A second central box (19) is provided at the bottom of the filter pipe (5), and the second central box (19) is connected to the filter pipe (5). The bottom of the return air duct (4) is provided with... There is a first central box (18), and the first central box (18) is connected to the return air duct (4). A return air port (17) is provided at the bottom of one side of the inner wall of the clean room body (1), and the return air port (17) is connected to the inside of the second central box (19). An air inlet (16) is provided at the bottom of the other side of the inner wall of the clean room body (1), and the air inlet (16) is connected to the inside of the first central box (18). An exhaust fan unit (15) is installed at the bottom of the inside of the return air duct (4), and an intake fan unit (11) is installed at the bottom of the inside of the filter pipe (5).
2. The modular cleanroom laminar flow air supply device according to claim 1, characterized in that: A filter box (6) is installed in the middle layer inside the filter pipe (5), and the filter box (6) moves from the through groove on the surface of the filter pipe (5) to the inside of the filter pipe (5). Tracks (12) are symmetrically arranged on both sides of the middle layer of the filter pipe (5), and the filter box (6) is movably engaged with the inside of the filter pipe (5) through the connection with the track (12). A handle (7) is installed on the outside of the filter box (6), and a limiting plate (8) is installed below the through groove on the outer surface of the filter pipe (5). The limiting plate (8) rotates through a rotating shaft, and the inner side of the limiting plate (8) is movably attached to the outer surface of the filter box (6).
3. The modular cleanroom laminar flow air supply device according to claim 2, characterized in that: The filter box (6) has a filter element (10) installed at the bottom inside, and a fixed frame (9) is installed at the top inside the filter box (6). The upper and lower ends of the fixed frame (9) are connected, and an activated carbon layer is provided inside the fixed frame (9).
4. The modular cleanroom laminar flow air supply device according to claim 1, characterized in that: A partition plate (14) is installed inside the through groove on the surface of the return air duct (4), and the partition plate (14) swings inside the through groove via a rotating shaft. A rotating dial (21) is connected to one side of the partition plate (14), and the rotating dial (21) is located outside the return air duct (4). A filter screen (13) is installed outside the through groove on the surface of the return air duct (4).
5. A modular cleanroom laminar flow air supply device according to claim 1, characterized in that: The ventilation duct (2) is equipped with an ultraviolet lamp (3).
6. A modular cleanroom laminar flow air supply device according to claim 1, characterized in that: The inner surfaces of the air inlet (16) and the air outlet (17) are both equipped with mesh screens (20).