Prefabricated clean room with modular ventilation mechanism

Abstract

The invention relates to the technical field of clean rooms, in particular to a prefabricated clean room with a modular ventilation mechanism, which comprises a clean box body, a ceiling is arranged at the upper end of the clean box body, a prefabricated keel is prefabricated on the inner side of the ceiling, and an FFU laminar flow air supply mechanism is arranged on the top side of the ceiling. The multiple FFU laminar flow air supply mechanisms are directly installed on the prefabricated keels of the ceiling of the clean room through the prefabricated keels, flexible deployment is achieved, the flow guide units are installed on the inner side of the filter box body, the function of supporting the FFU fan assemblies is achieved, airflow is guided and diffused through the optimal design of the shape and the structure of the FFU laminar flow air supply mechanisms, and the air supply efficiency is improved. The air flow blowing-out uniformity can be improved; the filter box body is matched with the laminar flow disturbance units distributed between the filter box body and the ultra-efficient filter, so that the auxiliary butt joint of the filter box body and the ultra-efficient filter during installation is met, the air outlet amount can be adjusted according to needs, meanwhile, the air flow staying in the filter box body can be disturbed, and the ventilation effect is accelerated.

Description

Technical Field

[0001] This invention relates to the field of cleanroom technology, specifically to a prefabricated cleanroom with a modular ventilation mechanism. Background Technology

[0002] The core requirement of cleanroom technology lies in providing a highly clean environment for precision manufacturing or scientific research activities by controlling parameters such as the concentration of suspended particles, temperature, humidity, and air pressure in the air. Cleanrooms typically have an independent HVAC system built-in, equipped with high-precision temperature and humidity sensors to capture environmental fluctuations in real time and automatically adjust the supply air temperature and humidification. Combined with FFU (Fan-Filter Unit) units, constant temperature and humidity airflow is evenly distributed throughout the entire area. An FFU is a self-powered, modular terminal air supply device with filtration function. It is equipped with a primary and high-efficiency dual-stage filter fan that draws air in from the top of the FFU and filters it through the primary and high-efficiency filters. The filtered clean air is uniformly delivered at a wind speed of 0.45 m / s + 20% across the entire air outlet surface. It can be modularly connected and is widely used in clean benches, clean production lines, modular cleanrooms, and local Class 100 cleanrooms.

[0003] In the prior art, such as the GMP cleanroom FFU fan filter unit disclosed in CN212081509U, there is a color steel plate and an FFU unit. It is installed using a mounting bracket. The FFU fan filter unit is embedded in the ceiling or the space between the color steel plate and the roof. The pre-filter component filters the air entering the FFU fan filter unit, thereby extending the service life of the FFU fan filter unit.

[0004] To address the issue of incomplete indoor air circulation and consequently, the inability to fully purify indoor air, the aforementioned document proposes embedding FFU (Fan Filter Unit) units in the ceiling or the space between the corrugated steel plate and the roof. However, in actual use, the existing FFU units have a simple structure, and the airflow stagnation time within the unit is short, resulting in reduced filtration efficiency and difficulty in achieving comprehensive laminar flow filtration, thus affecting the ventilation effect in cleanrooms.

[0005] Therefore, this invention proposes a prefabricated cleanroom with a modular ventilation mechanism to solve the problems of existing FFU fan filter units having a simple structure, short airflow stagnation time in the unit leading to reduced filtration effect, difficulty in achieving comprehensive laminar flow filtration, and affecting the ventilation effect in the cleanroom. Summary of the Invention

[0006] In view of the shortcomings of the existing technology, the purpose of this invention is to provide a prefabricated clean room with a modular ventilation mechanism to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a prefabricated cleanroom with a modular ventilation mechanism, comprising a cleanroom housing body, a roof at the upper end of the cleanroom housing body, a prefabricated keel prefabricated on the inner side of the roof, and an FFU laminar flow air supply mechanism on the top side of the roof. The FFU laminar flow air supply mechanism consists of a filter housing, a primary filter cover, an FFU fan assembly, an ultra-high efficiency filter, and a flow diffuser. The primary filter cover is fixedly installed on the top center of the filter housing, and the FFU fan assembly is located on the primary filter housing. Inside the filter cover, a flow guiding unit is fixedly connected to the lower end of the FFU fan assembly. The flow guiding unit includes a mounting base and a flow guiding plate. The upper end of the ultra-high efficiency filter is fixedly connected to the lower end of the filter housing by bolts. A laminar flow disturbance unit is provided inside the ultra-high efficiency filter. The laminar flow disturbance unit includes a hollow embedded strip and a flow expansion component. A flange plate is fixedly installed on the upper outer surface of the ultra-high efficiency filter. A groove is opened on the upper surface of the flange plate. The inner surface of the groove is adapted to fit and engage with both ends of the hollow embedded strip.

[0008] Preferably, the upper surface of the guide plate is fixedly connected to the lower surface of the mounting base, and both the mounting base and the guide plate are fixedly connected to the top surface of the inner cavity of the filter box by bolts, and the FFU fan assembly is rotatably mounted on the upper surface of the mounting base.

[0009] Preferably, comb-shaped receiving grooves are respectively provided on the inner walls of both sides of the guide plate, and a comb-shaped swing plate is movably installed on the inner side of the comb-shaped receiving groove. The comb-shaped swing plate is composed of an adapter claw, a first air guide plate and a second air guide plate. A rotating rod is fixedly installed at the end of the adapter claw away from the second air guide plate, and the outer surface of the rotating rod is rotatably connected to the inner wall of the guide plate.

[0010] Preferably, a reserved groove is provided on the inner wall of the guide plate near the rotating rod. The inner surface of the reserved groove is movably connected to the inner surface of the first air guide plate. An elastic flap is fixedly connected to the inner side of the reserved groove, and the other end of the elastic flap is fixedly connected to the inner surface of the first air guide plate.

[0011] Preferably, the hollow insert strip has a columnar hollow tube structure, one end of the hollow insert strip is provided with a micro air pump, the air delivery end of the micro air pump is connected to the inner wall of the hollow insert strip, and the inner surface of the hollow insert strip is uniformly provided with through holes.

[0012] Preferably, inserts are fixedly installed on the outer walls of both ends of the hollow insert strip, the outer surfaces of the inserts are adapted to fit and engage with the inner surfaces of the grooves, and the upper surface of the hollow insert strip is movably engaged with the lower inner wall of the filter box.

[0013] Preferably, an electric telescopic rod is fixedly installed at one end of the inner side of the hollow embedded strip, and a sliding rod is fixedly connected to the output end of the electric telescopic rod. The sliding rod is slidably installed on the inner surface of the hollow embedded strip, and a connecting rod is rotatably connected to the inner surface of the sliding rod.

[0014] Preferably, the flow amplification assembly includes flow amplification plates, with both ends of the plurality of flow amplification plates rotatably connected to the end of the connecting rod away from the sliding tie rod, and a sealing strip fixedly connected to one end of each group of flow amplification plates, with one end of adjacent flow amplification plates movably overlapping the inner side of the sealing strip.

[0015] Preferably, a hollow shaft is fixedly connected to the inner wall of one end of the diffuser plate, and the two ends of the hollow shaft are respectively sealed and connected to the inner wall of the through hole and correspond one to one.

[0016] Preferably, the hollow shaft has an air guide groove on its inner wall, and the diffuser plate has a jet groove on its inner wall, with the output end of the air guide groove corresponding to the input end of the jet groove.

[0017] Compared with the prior art, the beneficial effects of the present invention are: This invention proposes a prefabricated cleanroom with a modular ventilation mechanism. Several FFU (Fan Filter Unit) laminar flow air supply mechanisms are directly installed on the prefabricated keel of the cleanroom ceiling, enabling flexible deployment. By installing a flow guiding unit inside the filter housing, it not only supports the FFU fan assembly but also, through its optimized shape and structure, guides and diffuses the airflow, improving airflow uniformity. Combined with laminar flow disturbance units distributed between the filter housing and the ultra-high efficiency filter, this not only facilitates the connection between the filter housing and the ultra-high efficiency filter during installation but also allows for on-demand adjustment of the airflow volume. Furthermore, it disturbs the airflow remaining inside the filter housing, accelerating ventilation. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal structure of the cleanroom box body of the present invention; Figure 3 This is a schematic diagram of a partial connection between the prefabricated keel and the FFU laminar flow air supply mechanism of the present invention; Figure 4 For the present invention Figure 3 A schematic diagram of the cross-sectional structure at point aa; Figure 5 For the present invention Figure 4 A magnified structural diagram at point A; Figure 6 For the present invention Figure 3 A schematic diagram of the disassembled structure; Figure 7 For the present invention Figure 6 A magnified structural diagram at point B; Figure 8 This is a schematic diagram of the connection structure between the prefabricated keel and the FFU laminar flow air supply mechanism of the present invention from a bottom view. Figure 9 This is a schematic diagram of the comb-shaped swing plate component in its recycling state according to the present invention; Figure 10 For the present invention Figure 9 A magnified structural diagram at point C; Figure 11 This is a schematic diagram of the comb-shaped swing plate in the open state of the present invention; Figure 12 For the present invention Figure 11 A magnified structural diagram at point D; Figure 13 This is a schematic diagram of the connection structure between the ultra-high efficiency filter and the laminar flow disturbance unit of the present invention; Figure 14 This is a schematic diagram of the disassembly structure of the hollow embedded strip plate and the diffuser plate of the present invention. Figure 1 ; Figure 15 For the present invention Figure 14 A magnified structural diagram at point E; Figure 16 This is a schematic diagram of the disassembly structure of the hollow embedded strip plate and the diffuser plate of the present invention. Figure 2 ; Figure 17 For the present invention Figure 16 A magnified structural diagram at point F.

[0019] In the diagram: 1. Cleanroom housing body; 10. Roof; 2. Precast keel; 3. FFU laminar flow air supply mechanism; 31. Filter box; 311. Side panel; 312. Filter triangle plate; 32. Primary filter cover; 33. FFU fan assembly; 331. Mounting base; 332. Air guide plate; 3320. Comb-shaped receiving slot; 333. Comb-shaped swing plate; 3331. Adapter claw; 3332. Air guide plate one; 3333. Air guide plate two; 33331. Limiting column. 33200, Limiting groove; 33320, Reserved groove; 3334, Elastic flap; 34, Ultra-high efficiency filter; 341, Flange plate; 3410, Embedded groove; 35, Flow-expanding mesh plate; 36, Hollow embedded strip plate; 360, Through hole; 361, Insert block; 362, Electric telescopic rod; 363, Sliding tie rod; 3631, Connecting rod; 37, Flow-expanding plate; 371, Hollow shaft; 372, Sealing strip; 3710, Air guide groove; 370, Jet groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the present invention clear and complete, the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of the present invention, and are merely illustrative of the embodiments of the present invention. They are not intended to limit the embodiments of the present invention. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1, please refer to Figure 1-17 This invention provides a technical solution: a prefabricated cleanroom with a modular ventilation mechanism, comprising a cleanroom body 1, a roof 10 at the upper end of the cleanroom body 1, a prefabricated keel 2 prefabricatedly installed on the inner side of the roof 10, and an FFU laminar flow air supply mechanism 3 on the top side of the roof 10. The FFU laminar flow air supply mechanism 3 consists of a filter box 31, a primary filter cover 32, an FFU fan assembly 33, an ultra-high efficiency filter 34, and a flow-expanding mesh plate 35. The primary filter cover 32 is fixedly installed on the top center of the filter box 31. The fan assembly 33 is located inside the primary filter cover 32. A three-speed controller is installed on one side of the primary filter cover 32. This three-speed controller is electrically connected to the FFU fan assembly 33 and is used to control the airflow speed of the FFU fan assembly 33. A flow guide unit is fixedly connected to the lower end of the FFU fan assembly 33. The flow guide unit includes a mounting base 331 and a flow guide plate 332. The upper surface of the flow guide plate 332 is fixedly connected to the lower surface of the mounting base 331. Both the mounting base 331 and the flow guide plate 332 are bolted to the filter. The top surface of the inner cavity of the housing 31 is fixedly connected, and the FFU fan assembly 33 is rotatably mounted on the upper surface of the mounting base 331; the upper end of the ultra-high efficiency filter 34 is fixedly connected to the lower end of the filter housing 31 by bolts, and a laminar flow disturbance unit is provided on the inner side of the ultra-high efficiency filter 34; a flange plate 341 is fixedly installed on the upper outer surface of the ultra-high efficiency filter 34, and a groove 3410 is opened on the upper surface of the flange plate 341. The inner surface of the groove 3410 is respectively fitted and engaged with the two ends of the hollow mounting strip 36; the two sides of the filter housing 31 are fixedly connected. A side plate 311 is fixedly installed, and a filter triangular plate 312 is fixedly installed on the inner side of the side plate 311 by bolts; an air duct is installed through the top surface of the inner cavity of the clean box body 1, and the output end of the air duct extends to the upper side of the ceiling 10, and the air supply port of the air duct faces the FFU laminar flow air supply mechanism 3 arranged inside. The air duct here guides the air inside the clean box body 1 and delivers the airflow to the space between the ceiling 10 and the roof, so that the air is filtered under the action of the FFU laminar flow air supply mechanism 3 and then sent out clean airflow into the room. In this embodiment, several FFU laminar flow air supply mechanisms 3 are directly installed on the prefabricated keel 2 of the cleanroom ceiling 10 by using prefabricated keel 2. The prefabricated keel 2 is modularly connected with the FFU laminar flow air supply mechanism 3, and the whole is flexibly deployed. The prefabricated keel 2 is made of prefabricated aluminum tubes arranged in a grid on the inside of the ceiling 10. When ventilating the cleanroom body 1, the air duct is connected to the air intake device, which guides the air inside the cleanroom body 1 to the ceiling 10. The air is drawn in by the FFU fan assembly 33 and filtered through the primary filter cover 32. When the air enters the filter box 31, the high-speed rotation of the FFU fan assembly 33 causes the airflow to diffuse within the filter box 31. The guide unit installed inside the filter box 31 not only supports the FFU fan assembly 33 but also guides and diffuses the airflow through its optimized shape and structure, improving the uniformity of the airflow. In conjunction with the laminar flow disturbance unit distributed between the filter box 31 and the ultra-high efficiency filter 34, it not only facilitates the connection between the filter box 31 and the ultra-high efficiency filter 34 during installation but also allows for on-demand adjustment of the airflow volume. At the same time, it can also disturb the airflow lingering inside the filter box 31, accelerating the ventilation effect.

[0022] Example 2, see attached document Figure 1-17 Based on Example 1, in order to increase the residence time of the airflow and the filtration effect within the filter housing 31: Comb-shaped receiving grooves 3320 are respectively opened on the inner walls of both sides of the guide plate 332. A comb-shaped swing plate 333 is movably installed on the inner side of the comb-shaped receiving groove 3320. The comb-shaped swing plate 333 is composed of an adapter claw 3331, a first air guide plate 3332, and a second air guide plate 3333. A rotating rod is fixedly installed at the end of the adapter claw 3331 away from the second air guide plate 3333. The outer surface of the rotating rod is rotatably connected to the inner wall of the guide plate 332. Limiting posts 33331 are fixedly connected to both ends of the second air guide plate 3333. A limiting side groove 33200 is opened on the inner wall of the end of the guide plate 332 away from the rotating rod. The inner surface of the limiting side groove 33200 is in contact with the outer surface of the limiting post 33331. Here, symmetrical limiting posts are installed at both ends of the second air guide plate 3333. Positioning posts 33331 ensure that when the comb-shaped oscillating plate 333 is subjected to a large airflow impact, the limiting posts 33331 at both ends cooperate with the limiting side grooves 33200. The limiting side grooves 33200 restrict the range of motion of the comb-shaped oscillating plate 333, preventing the comb-shaped oscillating plate 333 from tilting downwards towards the guide plate 332. This can play an auxiliary limiting role for the entire comb-shaped oscillating plate 333. A reserved groove 33320 is provided on the inner wall of the guide plate 332 near the rotating rod. The inner surface of the reserved groove 33320 is movably connected to the inner surface of the first guide plate 3332. An elastic flap 3334 is fixedly connected to the inner side of the reserved groove 33320. The other end of the elastic flap 3334 is fixedly connected to the inner surface of the first guide plate 3332. In this embodiment, the guide plate 332 is installed at the lower end of the mounting base 331 and connected to the top surface of the filter box 31 by bolts. In the initial state, the comb-shaped swing plates 333 at both ends of the guide plate 332 are in an extended arm state under the action of the elastic flaps 3334, forming an angle with the horizontal plane of the guide plate 332. When the FFU fan assembly 33 is started, the airflow diffuses in all directions under high speed. At this time, the airflow will continuously impact the comb-shaped swing plates 333 on both sides, and the comb-shaped swing plates 333 are... The body oscillates under the action of airflow, and the elastic flap 3334 undergoes compression deformation. At this time, part of the airflow will flow to the upper cavity of the filter box 31 through the guide of the adapter claw 3331, while part of the airflow will flow to the middle and lower cavity of the filter box 31 through the gap of the comb-shaped receiving groove 3320. At this time, the comb-shaped oscillating plate 333 as a whole is oscillating due to the impact of airflow to different degrees, which realizes the disturbance of airflow in various areas of the filter box 31, and increases the filtration effect between the filter box 312 and the filter triangle plate 312.

[0023] Example 3, refer to Appendix Figure 1-17 Based on Embodiment 2, in order to achieve the installation of the laminar flow disturbance unit within the ultra-high efficiency filter 34: The laminar flow disturbance unit includes a hollow embedded strip plate 36 and a flow amplification component. Inserts 361 are fixedly installed on the outer walls of both ends of the hollow embedded strip plate 36. The outer surfaces of the inserts 361 are adapted to fit into the inner surfaces of the grooves 3410. The upper surface of the hollow embedded strip plate 36 is movably engaged with the lower inner wall of the filter housing 31. An electric telescopic rod 362 is fixedly installed on one inner end of the hollow embedded strip plate 36. The output end of the electric telescopic rod 362 is fixedly connected to a sliding pull... Rod 363, sliding tie rod 363 is slidably installed on the inner surface of hollow embedded strip plate 36, and connecting rod 3631 is rotatably connected to the inner surface of sliding tie rod 363; the flow amplification assembly includes flow amplification plate 37, the two ends of several flow amplification plates 37 are respectively rotatably connected to the end of connecting rod 3631 away from sliding tie rod 363, one end of each group of flow amplification plates 37 is fixedly connected to a sealing strip 372, and one end of adjacent flow amplification plates 37 is respectively movably overlapped with the inner side of sealing strip 372; In this embodiment, before assembling the prefabricated cleanroom, the ultra-high efficiency filter 34 is first connected to the top side of the ceiling 10 with bolts. Then, the two ends of the two sets of hollow insert strips 36 are aligned with the insert grooves 3410 and snapped in. Subsequently, the bottom of the filter box 31 is aligned with the upper surface of the ultra-high efficiency filter 34 and fixed with ear plates and bolts. Here, the hollow insert strips 36 are located between the filter box 31 and the ultra-high efficiency filter 34, which can not only realize the pre-positioning of the filter box 31 and the ultra-high efficiency filter 34 before installation, but also serve as structural support for the installation of several diffuser plates 37; see reference. Figures 14-16 As shown, when it is necessary to swing the angle of several diffuser plates 37, the electric telescopic rod 362 is extended or retracted, causing the sliding rod 363 to slide inside the hollow embedded strip plate 36. At this time, multiple sets of connecting rods 3631 swing, causing the corresponding diffuser plates 37 to tilt. In this way, the airflow into the ultra-high efficiency filter 34 from the filter box 31 is controlled by tilting the angle of multiple sets of diffuser plates 37. It is worth noting that, referring to Figure 13 As shown, the adjacent diffuser plates 37 are all in a horizontal state. When all diffuser plates 37 are horizontal, the outlet at the bottom of the filter box 31 is in a closed state. At this time, the airflow stays inside the filter box 31 for a longer time, thus increasing the filtration effect. It should be noted that a sealing strip 372 is installed at one end of each set of diffuser plates 37. When two adjacent sets of diffuser plates 37 are horizontal, the sealing strip 372 overlaps with one end of the adjacent diffuser plate 37, which can reduce the impact force when overlapping and increase the sealing effect to prevent airflow from escaping.

[0024] Example 4, see attached document Figure 1-17 Based on Example 3, in order to facilitate routine maintenance and auxiliary cleaning of dust adhering to the surface of the flow-expanding mesh plate 35: The hollow insert plate 36 has a columnar hollow tube structure. A micro air pump is installed at one end of the hollow insert plate 36. The air delivery end of the micro air pump is connected to the inner wall of the hollow insert plate 36. Through holes 360 are evenly opened on the inner surface of the hollow insert plate 36. A hollow shaft 371 is fixedly connected to the inner wall of one end of the diffuser plate 37. The two ends of the hollow shaft 371 are respectively sealed and connected to the inner wall of the through hole 360 ​​and correspond one by one. An air guide groove 3710 is opened on the inner wall of the hollow shaft 371, and a jet groove 370 is opened on the inner wall of the diffuser plate 37. The output end of the air guide groove 3710 corresponds to the input end of the jet groove 370. In this embodiment, the hollow embedded strip 36 has a columnar hollow tube structure, which serves not only as a docking point for the filter box 31 and the ultra-high efficiency filter 34 during installation, but also as a connection point for several diffuser plates 37. It is also worth noting that when the micro air pump is turned on, the supplementary airflow inside the hollow embedded strip 36 is discharged through multiple sets of through holes 360. At this time, the through holes 360 correspond one-to-one with the ports of the hollow shaft 371, so that the airflow flows into the hollow shaft 371. And through the setting of the air guide groove 3710 and the jet groove 370, the airflow is ejected through the output port of the jet groove 370. The purpose of this is to enable the several diffuser plates 37 to assist in blowing away the dust adhering to the inner side of the diffuser mesh plate 35 below when the diffuser plates 37 are tilted, thereby reducing the need for disassembly and maintenance of the diffuser mesh plate 35.

[0025] The working principle and usage process of this invention are as follows: In actual use, the FFU laminar flow air supply mechanism 3 is installed on the ceiling 10 of the cleanroom body 1. Then, the equipment is connected to an external power supply. The speed of the FFU fan assembly 33 is controlled by a three-speed controller. When the FFU fan assembly 33 is turned on, the air duct is connected to the suction device to guide the air in the cleanroom body 1 to the ceiling 10. The air is drawn in by the FFU fan assembly 33 and filtered through the primary filter cover 32. When the air enters the filter box 31, due to the high-speed rotation of the FFU fan assembly 33, the airflow is driven to diffuse in the inner cavity of the filter box 31. The air enters the inner cavity of the filter box 31 for primary filtration, and then undergoes high-efficiency filtration through the diffuser plate 35. The filtered air enters the cleanroom body 1 for air supply, achieving the purpose of air filtration. When it is necessary to adjust the angle of several diffuser plates 37... During the swing, the electric telescopic rod 362 is extended and retracted, causing the sliding rod 363 to slide inside the hollow embedded strip plate 36. At this time, multiple sets of connecting rods 3631 swing, causing the corresponding diffuser plates 37 to tilt. In this way, the airflow into the ultra-high efficiency filter 34 of the filter box 31 is controlled by tilting the angle of multiple sets of diffuser plates 37. When the micro air pump is turned on, the supplementary airflow in the cavity of the hollow embedded strip plate 36 is discharged through multiple sets of through holes 360. At this time, the through holes 360 correspond one-to-one with the ports of the hollow shaft rod 371, so that the airflow flows into the hollow shaft rod 371. And through the setting of the air guide groove 3710 and the jet groove 370, the airflow is sprayed out through the output port of the jet groove 370. The purpose of this is to enable the diffuser plates 37 to assist in blowing away the dust adhering to the inner side of the diffuser mesh plate 35 below when they are tilted, reducing the need for disassembly and maintenance of the diffuser mesh plate 35.

[0026] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A prefabricated cleanroom with a modular ventilation mechanism, comprising a cleanroom housing body (1), wherein a roof (10) is provided at the upper end of the cleanroom housing body (1), characterized in that: The inner side of the canopy (10) is prefabricated with a prefabricated keel (2). The top side of the canopy (10) is provided with an FFU laminar flow air supply mechanism (3). The FFU laminar flow air supply mechanism (3) consists of a filter box (31), a primary filter cover (32), an FFU fan assembly (33), an ultra-high efficiency filter (34), and a flow-expanding mesh plate (35). The primary filter cover (32) is fixedly installed on the top center of the filter box (31). The FFU fan assembly (33) is located inside the primary filter cover (32). The lower end of the FFU fan assembly (33) is fixedly connected to a flow guide unit. The flow guiding unit includes a mounting base (331) and a flow guiding plate (332); the upper end of the ultra-high efficiency filter (34) is fixedly connected to the lower end of the filter box (31) by bolts; a laminar flow disturbance unit is provided on the inner side of the ultra-high efficiency filter (34); the laminar flow disturbance unit includes a hollow embedded strip plate (36) and a flow expansion component; a flange plate (341) is fixedly installed on the upper outer surface of the ultra-high efficiency filter (34); a groove (3410) is opened on the upper surface of the flange plate (341); and the inner surface of the groove (3410) is adapted to fit and fit into both ends of the hollow embedded strip plate (36).

2. A prefabricated cleanroom with a modular ventilation mechanism according to claim 1, characterized in that: The upper surface of the guide plate (332) is fixedly connected to the lower surface of the mounting base (331), and both the mounting base (331) and the guide plate (332) are fixedly connected to the top surface of the inner cavity of the filter box (31) by bolts. The FFU fan assembly (33) is rotatably mounted on the upper surface of the mounting base (331).

3. A prefabricated cleanroom with a modular ventilation mechanism according to claim 2, characterized in that: The inner walls of the two sides of the guide plate (332) are respectively provided with comb-shaped receiving grooves (3320). A comb-shaped swing plate (333) is movably installed on the inner side of the comb-shaped receiving groove (3320). The comb-shaped swing plate (333) is composed of an adapter claw (3331), a first air guide plate (3332) and a second air guide plate (3333). A rotating rod is fixedly installed at the end of the adapter claw (3331) away from the second air guide plate (3333). The outer surface of the rotating rod is rotatably connected to the inner wall of the guide plate (332).

4. A prefabricated cleanroom with a modular ventilation mechanism according to claim 3, characterized in that: The guide plate (332) has a reserved groove (33320) on the inner wall of the side near the rotating rod. The inner surface of the reserved groove (33320) is movably connected to the inner surface of the first guide plate (3332). An elastic flap (3334) is fixedly connected to the inner side of the reserved groove (33320). The other end of the elastic flap (3334) is fixedly connected to the inner surface of the first guide plate (3332).

5. A prefabricated cleanroom with a modular ventilation mechanism according to claim 1, characterized in that: The hollow insert strip (36) has a columnar hollow tube structure. A micro air pump is provided at one end of the hollow insert strip (36). The air delivery end of the micro air pump is connected to the inner wall of the hollow insert strip (36). Through holes (360) are uniformly opened on the inner surface of the hollow insert strip (36).

6. A prefabricated cleanroom with a modular ventilation mechanism according to claim 5, characterized in that: The hollow insert strip (36) has inserts (361) fixedly installed on the outer walls of both ends. The outer surfaces of the inserts (361) are adapted to fit and fit into the inner surfaces of the grooves (3410). The upper surface of the hollow insert strip (36) is movably engaged with the lower inner wall of the filter box (31).

7. A prefabricated cleanroom with a modular ventilation mechanism according to claim 6, characterized in that: An electric telescopic rod (362) is fixedly installed at one end of the inner side of the hollow embedded strip (36). A sliding rod (363) is fixedly connected to the output end of the electric telescopic rod (362). The sliding rod (363) is slidably installed on the inner surface of the hollow embedded strip (36). A connecting rod (3631) is rotatably connected to the inner surface of the sliding rod (363).

8. A prefabricated cleanroom with a modular ventilation mechanism according to claim 7, characterized in that: The flow amplification assembly includes flow amplification plates (37), and the two ends of several flow amplification plates (37) are respectively rotatably connected to the end of the connecting rod (3631) away from the sliding pull rod (363). One end of each group of flow amplification plates (37) is fixedly connected to a sealing strip (372), and one end of adjacent flow amplification plates (37) is respectively movably overlapped with the inner side of the sealing strip (372).

9. A prefabricated cleanroom with a modular ventilation mechanism according to claim 8, characterized in that: A hollow shaft (371) is fixedly connected to the inner wall of one end of the diffuser plate (37). The two ends of the hollow shaft (371) are respectively sealed and connected to the inner wall of the through hole (360) and correspond one to one.

10. A prefabricated cleanroom with a modular ventilation mechanism according to claim 9, characterized in that: The hollow shaft (371) has an air guide groove (3710) on its inner wall, and the diffuser plate (37) has a jet groove (370) on its inner wall. The output end of the air guide groove (3710) corresponds to the input end of the jet groove (370).

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