Clean room high efficiency filtration air supply outlet

Abstract

The utility model is used to clean room air supply opening technical field, disclose a kind of clean room high efficiency filtration air supply opening, including outer shell, the outside surface of the outer shell is fixedly provided with supporting flange, and the inside of outer shell is provided with let way, the inside of the outer shell is fixedly provided with air outlet, and the inside of the lower end of air outlet is fixedly provided with protective grating.This clean room high efficiency filtration air supply opening, by setting switch motor and center disc in the inside of outer shell upper end, the shunt opening of center disc outer surface is set and cooperates the filter screen of middle section inside, can realize the switching use of multiple filter screens, when some group filter screen is blocked by dust and impurity and leads to air flow resistance increase, switch motor drives center disc rotation, clean filter screen is switched to working condition, continuously stably guarantee air filtration effect and air supply volume, overcome the problem that traditional air supply opening filtration structure is single, easy to block and affect clean demand.

Description

Technical Field

[0001] This utility model relates to the field of cleanroom air outlet technology, specifically a high-efficiency filter air outlet for cleanrooms. Background Technology

[0002] In today's rapidly developing modern industrial production and scientific research, cleanrooms play a vital role and are widely used in many industries such as electronics, pharmaceuticals, and food, which have almost stringent requirements for environmental cleanliness. Taking electronic chip manufacturing as an example, even extremely small dust particles can cause short circuits in chips, affecting their performance and quality. In pharmaceutical production, if airborne microorganisms are not effectively controlled, they will pose a serious threat to the safety and efficacy of drugs. The same is true for the food processing industry; a clean production environment is a key factor in ensuring food safety and extending the shelf life of food. The performance of the air supply outlets plays a decisive role in the efficient and stable operation of a cleanroom. The air supply outlets must not only have excellent air filtration capabilities to accurately filter out dust, microorganisms and other impurities in the air, ensuring that every wisp of air delivered to the cleanroom strictly meets the prescribed cleanliness standards, thus building a solid first line of defense for product production and scientific research experiments, but also ensure that the airflow is evenly and stably distributed in the room, avoiding dead air zones or turbulence, creating an ideal and suitable air environment in the room, and providing a stable foundation for the smooth progress of various tasks. However, it cannot be ignored that there are a series of problems with the existing cleanroom air supply outlets that urgently need to be solved. From the perspective of structural design, the filtration structure of traditional air supply outlets is generally relatively simple, relying only on simple filter screens for filtration. During long-term uninterrupted operation, the filter screens are easily clogged by a large amount of dust and impurities. Once clogged, air circulation will be greatly hindered, the flow resistance will increase sharply, and the air supply volume will decrease significantly. This makes it difficult for cleanrooms to maintain the required clean environment continuously and stably, and cannot meet the growing production and scientific research needs. From a maintenance and management perspective, when filters become clogged, the conventional approach is to manually disassemble, clean, or replace them. This process not only requires a significant investment of manpower but also demands that professionals possess certain operational skills and experience. Otherwise, the air outlets may be damaged during the operation. Furthermore, maintenance work often necessitates suspending the normal operation of the cleanroom, which undoubtedly causes serious delays and economic losses for production and research activities where every second counts. Utility Model Content

[0003] The purpose of this utility model is to provide a high-efficiency filter air outlet for cleanrooms, so as to solve the problems mentioned in the background art, such as the simple filter structure of traditional air outlets leading to easy clogging of the filter screen, affecting the air volume and cleaning effect, and the need for manual disassembly, cleaning or replacement of the filter screen, resulting in high maintenance costs and interruption of cleanroom operation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency filter air outlet for cleanrooms, comprising an outer shell, a supporting flange fixedly provided on the outer surface of the outer shell, and a clearance channel provided inside the outer shell, an air outlet fixedly provided inside the outer shell, and a protective grille fixedly provided inside the lower end of the air outlet, a switching motor fixedly installed inside the upper end of the outer shell, and the lower end of the output shaft of the switching motor penetrating the inner top surface of the outer shell, the output shaft of the switching motor being fixedly connected to a central disk, and a diversion port being provided on the outer surface of the central disk, and a filter screen being fixedly provided on the inner surface of the middle section of the diversion port; A central box is fixedly installed inside the lower end of the outer shell, and an electric push rod is fixedly installed inside the lower end of the outer shell below the central box, and a piston plate is fixedly connected to the upper end of the electric push rod. The upper end of the central box is provided with a backflush channel, the lower end face of the outer shell is provided with a pressure hole, and the upper side surface of the pressure hole is provided with a flow groove.

[0005] Preferably, the lower end of the air outlet duct passes through the lower surface of the outer casing, and the air outlet ducts are distributed at equal angles inside the outer casing.

[0006] By adopting the above technical solution, the filtered air can flow out evenly from the bottom of the outer shell, ensuring uniform airflow distribution in the clean room and creating a more stable and suitable air environment for the clean room.

[0007] Preferably, the upper end of the air outlet duct is in contact with the lower surface of the central plate, and the upper end of the air outlet duct is directly opposite the lower end of the diversion port, and the number of diversion ports is twice that of the air outlet duct.

[0008] By adopting the above technical solution, when the central plate rotates to switch the flow outlet, it can always ensure that the filter screen works in conjunction with the air outlet to ensure that the air is continuously and stably filtered and delivered, and maintain the efficient operation of the air outlet.

[0009] Preferably, the lower end of the central box is connected to the piston plate by sliding friction, and the lower end of the central box is penetrated by the upper end of the pressure hole, and the lower end of the pressure hole penetrates the lower surface of the outer shell.

[0010] By adopting the above technical solution, on the one hand, the piston plate can slide stably in the center box, and on the other hand, the pressure hole can balance the pressure inside and outside the center box, ensuring that the center box can work normally when the electric push rod pushes the piston plate to move, and the backflushing process can proceed smoothly.

[0011] Preferably, the upper end face of the backflush duct is in contact with the lower surface of the central disk, and the backflush duct and the air outlet duct are spaced at equal angles, and the number of backflush ducts and the air outlet ducts are the same.

[0012] By adopting the above technical solution, the backflushing airflow can be accurately sprayed onto the surface of the unused filter screen, achieving effective cleaning of the filter screen, while ensuring that the backflushing process does not affect the normal air supply operation, and maintaining the coordinated operation of the air supply outlet filtration and backflushing functions.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the cleanroom high-efficiency filter air outlet: 1. By setting a switching motor and a central plate inside the upper part of the outer casing, and the diversion port opened on the outer surface of the central plate in conjunction with the filter screen on the inner side of the middle section, multiple sets of filters can be switched for use. When a set of filters is blocked by dust and impurities, causing the air flow resistance to increase, the switching motor drives the central plate to rotate, switching the clean filter screen to the working state, continuously and stably ensuring the air filtration effect and air volume, overcoming the problems of traditional air outlet filter structure being single and easy to be blocked, affecting the cleanliness requirements; 2. The structure consisting of a central box, an electric push rod, and a piston plate inside the lower end of the outer casing enables automatic backflushing cleaning of the filter screen. The electric push rod drives the piston plate to move within the central box, spraying airflow onto the filter screen surface through the backflushing channel to blow off the attached dust and impurities. This eliminates the need for manual disassembly, cleaning, or replacement of the filter screen, greatly reducing maintenance costs and manpower input, avoiding the impact of maintenance on the normal operation of the cleanroom, and improving the continuity and stability of cleanroom operation. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a three-dimensional structural diagram of the connection between the outer shell, the supporting flange, and the clearance channel of this utility model; Figure 3 This is a schematic diagram of the overall cross-sectional three-dimensional structure of this utility model; Figure 4 This is a three-dimensional structural diagram of the connection between the central disc, the diversion port, and the filter screen of this utility model; Figure 5 This is a three-dimensional structural diagram showing the connection between the central disc, the diversion port, and the filter screen of this utility model. Figure 6 This is a three-dimensional structural diagram of the connection between the supporting flange and the air outlet duct of this utility model.

[0015] In the diagram: 1. Outer shell; 2. Support flange; 3. Clearance channel; 4. Air outlet; 5. Protective grille; 6. Switching motor; 7. Center plate; 8. Diverter port; 9. Filter screen; 10. Center box; 11. Electric push rod; 12. Piston plate; 13. Backflush channel; 14. Pressure hole; 15. Flow channel. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-6 This utility model provides a technical solution: a high-efficiency filter air outlet for cleanrooms.

[0018] Example 1: This example discloses: an outer shell 1, a supporting flange 2 fixedly provided on the outer surface of the outer shell 1, and a clearance channel 3 opened inside the outer shell 1. An air outlet 4 is fixedly provided inside the outer shell 1, and a protective grille 5 is fixedly provided inside the lower end of the air outlet 4. A switching motor 6 is fixedly installed inside the upper end of the outer shell 1, and the lower end of the output shaft of the switching motor 6 penetrates through the inner top surface of the outer shell 1. The output shaft of the switching motor 6 is fixedly connected to a central disk 7, and a diversion port 8 is opened on the outer surface of the central disk 7. A filter screen 9 is fixedly provided on the inner surface of the middle section of the diversion port 8. The lower end of the air outlet 4 is attached to the lower surface of the outer shell 1, and the air outlet 4 is distributed at equal angles inside the outer shell 1. The upper end of the air outlet 4 is in contact with the lower surface of the central plate 7, and the upper end of the air outlet 4 is directly opposite the lower end of the diversion port 8, and the number of diversion ports 8 is twice that of the air outlet 4. The air outlet is installed on the cleanroom ceiling or other locations via the supporting flange 2. External air enters the clearance duct 3 from the top of the outer shell 1. After the air supply is started, the switching motor 6 starts to run, driving the central plate 7 to rotate until the lower end of the diversion port 8 is directly opposite the upper end of the air outlet duct 4. The switching motor 6 then stops. Since the upper end of the air outlet duct 4 is in contact with the lower surface of the central plate 7 and is directly opposite the lower end of the diversion port 8, the air is filtered sequentially through different diversion ports 8 and the filter screen 9 inside them. The air outlet ducts 4 are distributed at equal angles inside the outer shell 1, ensuring that the airflow can flow out evenly from the protective grille 5 at the lower end of each air outlet duct 4.

[0019] When a set of filters 9 is clogged with dust and impurities, causing an increase in airflow resistance, the switching motor 6 starts at a predetermined time interval and drives the central disk 7 to rotate, switching the clean filters 9 to the working state facing the air outlet 4, so that air can pass through the filter smoothly and be sent into the clean room from the air outlet 4, continuously and stably ensuring the air filtration effect and air volume, and meeting the clean room's requirements for air cleanliness.

[0020] Example 2: This example discloses, based on Example 1, that a central box 10 is fixedly installed inside the lower end of the outer shell 1, and an electric push rod 11 is fixedly installed inside the lower end of the outer shell 1 below the central box 10, and a piston plate 12 is fixedly connected to the upper end of the electric push rod 11. The upper end of the central box 10 is provided with a backflush channel 13, and the lower end face of the outer shell 1 is provided with a pressure hole 14, and the upper side surface of the pressure hole 14 is provided with a flow groove 15. The lower end of the center box 10 is connected to the piston plate 12 by sliding friction, and the lower end of the center box 10 is penetrated by the upper end of the pressure hole 14, and the lower end of the pressure hole 14 penetrates the lower surface of the outer shell 1. The upper end face of the back-blowing duct 13 is in contact with the lower surface of the central plate 7, and the back-blowing duct 13 and the air outlet duct 4 are set at equal angles, and the number of back-blowing ducts 13 and the air outlet duct 4 is the same. After the switching motor 6 starts and stops, the electric push rod 11 begins to work, driving the piston plate 12 to move upward within the central box 10. Since the lower end of the central box 10 is connected to the piston plate 12 by sliding friction, and the lower end of the central box 10 is penetrated by the upper end of the pressure hole 14, the air inside the central box 10 is compressed when the piston plate 12 moves upward. The compressed air is sprayed towards the central disk 7 through the backflush channel 13. The upper end face of the backflush channel 13 is in contact with the lower surface of the central disk 7, and is set at equal angles and the same number as the air outlet channel 4. At this time, the backflush airflow is sprayed through the backflush channel 13 towards the surface of the filter screen 9 in the currently non-working diversion port 8, blowing the dust and impurities attached to the filter screen 9 into the interior of the outer casing 1. After the backflushing cleaning is completed, the electric push rod 11 drives the piston plate 12 back to the initial position, waiting for the next cleaning command. This automatic backflushing cleaning method does not require manual disassembly for cleaning or replacement of the filter screen 9, which greatly reduces maintenance costs and manpower input, avoids the impact of the maintenance process on the normal operation of the cleanroom, and improves the continuity and stability of the cleanroom operation. The pressure hole 14 and the flow channel 15 ensure the balance of internal pressure between the central box 10 and the outer shell 1, and ensure the smooth sliding of the central box 10.

[0021] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency filter air outlet for cleanrooms, comprising an outer shell (1), wherein a supporting flange (2) is fixedly disposed on the outer surface of the outer shell (1), and a clearance channel (3) is provided inside the outer shell (1), wherein an air outlet duct (4) is fixedly disposed inside the outer shell (1), and a protective grille (5) is fixedly disposed inside the lower end of the air outlet duct (4), characterized in that: A switching motor (6) is fixedly installed inside the upper end of the outer shell (1), and the lower end of the output shaft of the switching motor (6) penetrates the inner top surface of the outer shell (1). The output shaft of the switching motor (6) is fixedly connected to a central disk (7), and a diversion port (8) is opened on the outer surface of the central disk (7). A filter screen (9) is fixedly installed on the inner surface of the middle section of the diversion port (8).

2. The cleanroom high-efficiency filter air outlet according to claim 1, characterized in that: A central box (10) is fixedly installed inside the lower end of the outer shell (1), and an electric push rod (11) is fixedly installed inside the lower end of the outer shell (1) below the central box (10), and a piston plate (12) is fixedly connected to the upper end of the electric push rod (11).

3. The cleanroom high-efficiency filter air outlet according to claim 2, characterized in that: The upper end of the central box (10) is provided with a backflush channel (13), and the lower end face of the outer shell (1) is provided with a pressure hole (14), and the upper side surface of the pressure hole (14) is provided with a flow groove (15).

4. The cleanroom high-efficiency filter air outlet according to claim 1, characterized in that: The lower end of the air outlet (4) is attached to the lower surface of the outer shell (1), and the air outlet (4) is distributed at equal angles inside the outer shell (1).

5. A cleanroom high-efficiency filter air outlet according to claim 1, characterized in that: The upper end of the air outlet (4) is in contact with the lower surface of the central plate (7), and the upper end of the air outlet (4) is directly opposite the lower end of the diversion port (8), and the number of diversion ports (8) is twice that of the air outlet (4).

6. A cleanroom high-efficiency filter air outlet according to claim 3, characterized in that: The lower end of the center box (10) is connected to the piston plate (12) by sliding friction, and the lower end of the center box (10) is penetrated by the upper end of the pressure hole (14), and the lower end of the pressure hole (14) penetrates the lower surface of the outer shell (1).

7. A cleanroom high-efficiency filter air outlet according to claim 3, characterized in that: The upper end face of the backflow channel (13) is in contact with the lower surface of the central plate (7), and the backflow channel (13) and the air outlet channel (4) are set at equal angles, and the number of backflow channels (13) and air outlet channels (4) is the same.

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