Box-type air filter for clean room

Abstract

The utility model discloses a box type air filter for a clean room, which comprises a hollow box body, two ends of the box body are respectively provided with an air inlet pipe and an air outlet pipe which are communicated with an inner cavity of the box body, the inner cavity of the box body is internally provided with a filter component which is distributed towards the air inlet pipe in a protruding way, and the filter component comprises a fixed frame and two filter plates, the fixing frame is composed of two fixing frames distributed in a V shape, each fixing frame is provided with an opening penetrating through the two sides, each opening is provided with a filter plate, the fixing frames are provided with first magnet blocks, and the filter plates are provided with second magnet blocks magnetically attracted with the first magnet blocks; the top of the box body is provided with a placing opening and a sealing plate for sealing and covering the placing opening. The air filtering effect can be improved, and the large-air-volume filtering requirement can be met; meanwhile, as the filter plate is mounted on the fixing frame in an independent magnetic attraction fixing manner, the filter plate can be independently and quickly disassembled, cleaned and maintained, the whole filter assembly does not need to be disassembled, and the operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of air filters, in particular to a box-type air filter for a clean room. Background Art

[0002] An air filter is a device that captures dust from a gas-solid two-phase flow through the action of a porous filter material and purifies the gas. It purifies the air with a low dust content and sends it into the room to ensure the air cleanliness of indoor spaces such as clean rooms. To maintain air quality, it is generally necessary to regularly clean and maintain the filter structure inside the air filter.

[0003] In the existing box-type air filter, the filter plates installed inside are not easy to disassemble. To meet the requirements of airtightness, a sealing glue is generally used for fixed installation. When cleaning and maintenance are required, only the entire filter structure inside the box-type air filter can be disassembled, which is troublesome to operate and has low efficiency. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a box-type air filter for a clean room, which can quickly disassemble the filter plates individually, improve the cleaning and maintenance efficiency, and well solve the problems mentioned in the above background art.

[0005] To achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A box-type air filter for a clean room includes a hollow box body. An air inlet pipe and an air outlet pipe communicating with the inner cavity of the box body are respectively arranged at both ends of the box body. A filter assembly protruding towards the air inlet pipe is arranged in the inner cavity of the box body. The filter assembly includes a fixing frame and two filter plates. The fixing frame is composed of two fixing frames distributed in a V shape. Each fixing frame is provided with an opening penetrating both sides, and each opening is provided with one of the filter plates. The fixing frame is provided with a first magnet block, and the filter plate is provided with a second magnet block magnetically attracted to the first magnet block; an access port is opened at the top of the box body, and a sealing plate for hermetically covering the access port is provided.

[0007] Further, the opening is provided with a positioning step for positioning and clamping the filter plate. In this way, when the filter plate is magnetically installed, it can be embedded in the recessed positioning step, making the filter plate flush with the fixing frame.

[0008] Further, a sealing sheet is arranged between the filter plate and the positioning step, thereby improving the airtightness between the filter plate and the fixing frame.

[0009] Further, the filter plate includes a filter element layer and a frame fixed at the outer periphery of the filter element layer.

[0010] Further, the inner cavity side wall of the box body is provided with vertically distributed slots, and the two sides of the fixing frame are respectively provided with clamping convex edges. Through the cooperation of the clamping convex edges and the slots, the whole filtering component can be inserted into the inner cavity of the box body, and the filtering component can be positioned and fixed by the limitation of the slots.

[0011] Further, sealing strips are provided on both the top surface and the bottom surface of the fixing frame, so as to improve the airtightness between the fixing frame and the box body and the sealing plate.

[0012] Further, there are two filtering components, and the two filtering components are distributed in sequence along the air flow direction. In this way, the air can be subjected to secondary filtering treatment, improving the air filtering effect.

[0013] Further, a plurality of locking mechanisms are provided between the sealing plate and the box body. The locking mechanism includes a screw rod and a wing nut. The screw rod is vertically connected to the top surface of the box body, the wing nut is threadedly connected to the screw rod, and a U-shaped groove for fitting and clamping with the screw rod is provided at the edge of the sealing plate. By providing the U-shaped groove and using the cooperation of the wing nut and the screw rod, the sealing plate can be quickly locked and unlocked, which can reduce the time for installing and replacing the cleaning filter plate.

[0014] Further, a sealing ring is provided between the sealing plate and the box body and is annularly distributed around the outer periphery of the placement port, so as to improve the airtightness between the sealing plate and the box body.

[0015] Further, both the air inlet pipe and the air outlet pipe are provided with flange edges.

[0016] Compared with the prior art, the present utility model provides a box-type air filter for a clean room, which has the following beneficial effects:

[0017] On the one hand, the two filter plates on the filtering component are distributed in a V shape and protrude towards the air inlet pipe side. By increasing the filtering area, the air filtering effect can be improved and the large air volume filtering requirement can be met; on the other hand, since the filter plates are installed on the fixing frame by an independent magnetic attraction fixing method, they can be quickly disassembled and cleaned and maintained individually without removing the whole filtering component, which is convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0019] Figure 1Schematic three-dimensional structure diagram of the present utility model;

[0020] Figure 2 Schematic installation diagram of the sealing plate;

[0021] Figure 3 Schematic structure diagram of the sealing plate;

[0022] Figure 4 Schematic installation and disassembly diagram of the filter assembly;

[0023] Figure 5 Schematic magnetic attraction installation diagram of the filter plate and the fixing frame.

[0024] Reference numerals: 1, box body; 11, intake pipe; 12, outlet pipe; 13, placement port; 14, slot; 15, flange edge; 2, filter assembly; 21, fixing frame; 211, fixing frame; 212, opening; 213, positioning step; 214, clamping convex edge; 22, filter plate; 221, filter element layer; 222, frame; 23, sealing piece; 3, sealing plate; 31, U-shaped groove; 4, first magnet block; 5, second magnet block; 6, sealing strip; 7, screw; 8, wing nut; 9, sealing ring. Detailed implementation manners

[0025] The technical solutions of the present utility model will be clearly and completely described below through detailed embodiments in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figures 1 to 5, this embodiment provides a box-type air filter for a clean room, which includes a box body 1 with a hollow cuboid shape. An air inlet pipe 11 and an air outlet pipe 12 communicating with the inner cavity of the box body 1 are respectively arranged at both ends of the box body 1. A filter assembly 2 protruding towards the air inlet pipe is arranged in the inner cavity of the box body 1. The filter assembly 2 includes a fixing frame 21 and two filter plates 22. The fixing frame 21 is composed of two fixing frames 211 distributed in a V shape. Each fixing frame 211 is provided with an opening 212 penetrating both sides, and each opening 212 is provided with one of the filter plates 22. The fixing frame 211 is provided with a first magnet block 4, and the filter plate 22 is provided with a second magnet block 5 magnetically attracting the first magnet block 4; an access port 13 is opened at the top of the box body 1, and a sealing plate 3 hermetically covering the access port 13 is provided. On the one hand, the two filter plates on the filter assembly are distributed in a V shape and protrude towards the air inlet pipe side. By increasing the filtration area, the air filtration effect can be improved and the large air volume filtration requirement can be met. On the other hand, since the filter plates are installed on the fixing frame in an independent magnetic attraction fixing manner, after the sealing plate is opened, only a little force is needed to overcome the magnetic attraction force, and then the sealing plate can be quickly disassembled separately for cleaning and maintenance without removing the entire filter assembly. When the cleaning is completed, the filter plate can be magnetically attracted and fixed by virtue of the magnetic attraction force, which is convenient to operate.

[0027] In some embodiments, referring to Figure 5 , the opening 212 is provided with a positioning step 213 for positioning and clamping the filter plate 22. In this way, when the filter plate is magnetically installed, it can be embedded in the recessed positioning step, making the filter plate flush with the fixing frame.

[0028] As an improved embodiment, referring to Figure 5 , a sealing sheet 23 is provided between the filter plate 22 and the positioning step 213, thereby improving the airtightness between the filter plate and the fixing frame.

[0029] In some specific embodiments, referring to Figure 5 , the filter plate 22 includes a filter element layer 221 and a frame 222 fixed at the outer periphery of the filter element layer 221. As an example, a second magnet block 5 is embedded in both the upper and lower parts of the frame 222, and a first magnet block 4 is respectively embedded in the upper and lower parts of the fixing frame 211 corresponding to them.

[0030] In some specific embodiments, referring to Figure 2 and Figure 4 , vertical slots 14 are provided on the inner cavity side wall of the box body 1, and clamping convex edges 214 are respectively provided on both sides of the fixing frame 21. Through the cooperation of the clamping convex edge and the slot, the whole filter assembly can be inserted into the inner cavity of the box body, and the filter assembly can be positioned and fixed by the limitation of the slot.

[0031] As an improved embodiment, referring to Figure 4 and Figure 5 , sealing strips 6 are provided on both the top surface and the bottom surface of the fixing frame 21, so that the airtightness between the fixing frame, the box body and the sealing plate can be improved.

[0032] In some specific embodiments, referring to Figure 2 and Figure 4 , there are two filtering components 2, and the two filtering components 2 are distributed in sequence along the air flow direction. In this way, the air can be subjected to secondary filtering treatment, improving the air filtering effect.

[0033] In some specific embodiments, referring to Figures 1 to 3 , a plurality of locking mechanisms are provided between the sealing plate 3 and the box body 1. The locking mechanism includes a screw rod 7 and a wing nut 8. The screw rod 7 is vertically connected to the top surface of the box body 1, the wing nut 8 is threadedly connected to the screw rod 7, and a U-shaped groove 31 for fitting and clamping with the screw rod 7 is provided at the edge of the sealing plate 3. By providing the U-shaped groove and using the wing nut in cooperation with the screw rod, the sealing plate can be quickly locked and unlocked, which can reduce the time for installing and replacing the cleaning filter plate.

[0034] As an example, there are four locking mechanisms symmetrically provided, and two locking mechanisms are provided on each side of the top of the box body. Correspondingly, two U-shaped grooves 31 are respectively provided at both ends of the sealing plate.

[0035] As an improved embodiment, referring to Figure 3 , a sealing ring 9 is provided between the sealing plate 3 and the box body 1 and is annularly distributed around the outer periphery of the placement port 13, so that the airtightness between the sealing plate and the box body can be improved.

[0036] In some specific embodiments, referring to Figure 1 and Figure 2 , the air inlet pipe 11 and the air outlet pipe 12 are both provided with flange edges 15 for facilitating connection and installation.

[0037] The above embodiments only exemplarily illustrate the concept and technical solutions of the present invention, rather than being used to limit the present invention. Any person familiar with this technology can modify or change the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes completed by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed by the present invention should still be covered by the claims of the present invention.

[0038] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A box-type air filter for a clean room, comprising a hollow box body, characterized in that: An air inlet pipe and an air outlet pipe connected to the inner cavity of the box are respectively provided at both ends of the box body, and a filter assembly protruding toward the air inlet pipe is provided in the inner cavity of the box body, and the filter assembly includes a fixing frame and two filter plates, and the fixing frame is composed of two V-shaped fixed frames, each of which is provided with an opening passing through two sides, and each opening is provided with a filter plate, the fixing frame is provided with a first magnet block, and the filter plate is provided with a second magnet block magnetically attracted to the first magnet block; an inlet and a sealing plate sealingly covering the inlet are provided on the top of the box body.

2. The box-type air filter for a clean room according to claim 1, characterized in that: The opening is provided with a positioning step for positioning and clamping the filter plate.

3. The box-type air filter for a clean room according to claim 2, characterized in that: A sealing sheet is provided between the filter plate and the positioning step.

4. The box-type air filter for a clean room according to claim 1, characterized in that: The filter plate comprises a filter core layer and a frame fixed at the outer peripheral edge of the filter core layer.

5. The box-type air filter for a clean room according to any one of claims 1 to 4, characterized in that: The inner cavity side wall of the box body is provided with vertically distributed slots, and the two sides of the fixing frame are respectively provided with corresponding clamping convex edges.

6. The box-type air filter for a clean room according to claim 5, characterized in that: The top surface and the bottom surface of the fixing frame are both provided with sealing strips.

7. The box-type air filter for a clean room according to claim 6, characterized in that: There are two filter assemblies, and the two filter assemblies are distributed in sequence along the air flow direction.

8. The box-type air filter for a clean room according to claim 1, characterized in that: A plurality of locking mechanisms are provided between the sealing plate and the box body, and the locking mechanisms include a screw and a butterfly nut. The screw is vertically connected to the top surface of the box body, and the butterfly nut is threadedly connected to the screw. The edge of the sealing plate is provided with a U-shaped groove engaged with the screw.

9. The box-type air filter for a clean room according to claim 1, characterized in that: A sealing ring annularly distributed around the outer circumference of the insertion port is provided between the sealing plate and the box body.

10. The box-type air filter for a clean room according to claim 1, characterized in that: The air inlet pipe and the air outlet pipe are both provided with flange edges.

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