One-way exhaust dust removal valve

Abstract

The utility model discloses a one-way exhaust dust removal valve which comprises a pipeline, a baffle ring is arranged on the inner side wall of the pipeline, a step-shaped groove is formed in the baffle ring, a valve clack is arranged on the groove through a shaft in a rotating mode, the valve clack covers the groove under the gravity of the valve clack, a box body is detachably connected to the end of the pipeline, and the box body is fixedly connected with the pipeline. And a filtering piece is arranged on the box body. The utility model belongs to the technical field of dust removal valves, and particularly relates to a one-way exhaust dust removal valve.

Description

Technical Field

[0001] This utility model belongs to the field of dust removal valve technology, specifically referring to a one-way exhaust dust removal valve. Background Technology

[0002] Dust and exhaust gas emissions are common sources of pollution in industrial production processes and need to be filtered by dust removal equipment. Traditional one-way exhaust valves mostly use a simple gravity valve structure, which can only achieve one-way airflow control. However, after long-term use, dust accumulation can easily cause the valve to not seal properly, affecting dust removal efficiency.

[0003] In addition, existing dust removal valves are usually designed separately from the filter device, making maintenance and cleaning inconvenient, and the filter plates are not easy to replace. Utility Model Content

[0004] The technical problem this invention aims to solve is that the valve core and spring of traditional one-way valves are inconvenient to assemble and disassemble, which increases maintenance costs.

[0005] To achieve the above functions, the technical solution adopted by this utility model is as follows: a one-way exhaust dust removal valve includes a pipe, a retaining ring is provided on the inner side wall of the pipe, a stepped groove is provided on the retaining ring, a valve disc is rotatably provided on the groove via an shaft, the valve disc covers the groove under its own weight, and a housing is detachably connected to the end of the pipe, and a filter element is provided on the housing.

[0006] Preferably, the filter element includes a filter plate, the end of the housing is provided with a connection port, the connection port is detachably connected to the end of the pipe by a flange and bolts, the inside of the housing is provided with a through-hole, the housing is provided with an insertion port extending downward from its top through the through-hole, the filter plate is inserted into the insertion port and its top protrudes out.

[0007] Preferably, the bottom wall of the housing is provided with a dust discharge port, which is close to the filter plate.

[0008] Preferably, the top of the filter plate is provided with a mounting plate, which is fixed to the top wall of the housing by bolts.

[0009] Preferably, the retaining ring is inclined, and the valve disc is correspondingly arranged with respect to the retaining ring.

[0010] Preferably, the filter plate is inclined.

[0011] The beneficial effects achieved by adopting the above-described structure are as follows:

[0012] By installing a detachable filter box at the end of the pipeline, the dust-laden airflow first passes through the filter plate to intercept most of the dust before entering the valve disc area, effectively reducing the impact of dust on the valve disc sealing surface and improving long-term sealing reliability.

[0013] The retaining ring adopts a stepped groove design, and the valve disc fits tightly into the groove under the action of gravity to form a line seal structure.

[0014] The housing and pipes are connected by flanges, the filter plates can be quickly plugged in and replaced, and the dust outlet is located at the bottom of the housing, which is convenient for regular cleaning and reduces maintenance time and costs. Attached Figure Description

[0015] Figure 1 This is a cross-sectional view of an embodiment of the present utility model;

[0016] Figure 2 for Figure 1 Enlarged view of section A in the middle;

[0017] Figure 3 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 1 ;

[0018] Figure 4 This is a schematic diagram of the overall structure of an embodiment of the present utility model. Figure 2 .

[0019] Among them, 1. Pipe, 2. Retaining ring, 3. Groove, 4. Valve disc, 5. Housing, 6. Filter element, 7. Filter plate, 8. Connection port, 9. Through port, 10. Insertion port, 11. Dust discharge port, 12. Mounting plate. Detailed Implementation

[0020] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-4As shown, this utility model proposes a one-way exhaust dust removal valve, including a pipe 1. The inner wall of the pipe 1 is provided with a retaining ring 2. The retaining ring 2 is provided with a stepped groove 3. A valve disc 4 is rotatably mounted on the groove 3 via an axis. The valve disc 4 covers the groove 3 under its own weight. The retaining ring 2 is inclined, and the valve disc 4 is correspondingly positioned to the retaining ring 2. When the retaining ring 2 is inclined, the contact pressure between the valve disc 4 and the stepped groove 3 increases, improving the sealing performance. A housing 5 is detachably connected to the end of the pipe 1. The housing 5 is provided with a filter element 6. The stepped groove 3 restricts the valve disc 4 from rotating upward in one direction to open. After the airflow passes through the filter element 6 to filter dust, it pushes the valve disc 4 to rotate upward to open, so as to discharge from the pipe 1.

[0023] like Figure 1 and 3 As shown, the filter element 6 includes a filter plate 7. The end of the housing 5 is provided with a connection port 8. The connection port 8 is detachably connected to the end of the pipe 1 by a flange and bolts. The housing 5 has a through-hole 9 inside. The housing 5 has an insertion port 10 that extends downward from its top through the through-hole 9. The filter plate 7 is inserted into the insertion port 10 and its top protrudes out. The top of the filter plate 7 is provided with a mounting plate 12. The mounting plate 12 is fixed to the top wall of the housing 5 by bolts. The filter plate 7 is inclined. When the airflow stops, the dust attached to the plate surface can automatically slide down the inclined surface to the bottom dust discharge port 11. The filter plate 7 can be inserted and removed for maintenance and cleaning.

[0024] like Figure 1 As shown, the bottom wall of the box 5 is provided with a dust discharge port 11, which is close to the filter plate 7, and the filtered dust is discharged from the dust discharge port 11.

[0025] In practical use, pipe 1 is connected to the connection port 8 of housing 5 through flange and fixed with bolts; filter plate 7 is inserted into housing 5 through port 10 and top mounting plate 12 is fixed to the top wall of housing 5 with bolts.

[0026] After the dust-laden airflow enters the housing 5, it first passes through the inclined filter plate 7 to intercept the dust. The clean airflow continues to flow and pushes the valve disc 4 to rotate upward and open. Finally, it is discharged from the pipe 1. When the airflow stops, the valve disc 4 falls back into the stepped groove 3 of the retaining ring 2 under the action of gravity, forming a tight seal to prevent backflow of airflow.

[0027] Dust intercepted by filter plate 7 slides down the inclined surface to dust outlet 11 at the bottom of housing 5, and dust outlet 11 can be opened periodically for cleaning.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A one-way exhaust dust removal valve, characterized in that: The pipe (1) includes a retaining ring (2) on its inner wall, a stepped groove (3) on the retaining ring (2), a valve disc (4) on the groove (3) rotatably mounted on the groove (3) by a shaft, the valve disc (4) covering the groove (3) under its own weight, and a box (5) detachably connected to the end of the pipe (1), and a filter element (6) on the box (5).

2. The one-way exhaust dust removal valve according to claim 1, characterized in that: The filter element (6) includes a filter plate (7). The end of the housing (5) is provided with a connection port (8). The connection port (8) is detachably connected to the end of the pipe (1) by a flange and bolts. The housing (5) is provided with a through opening (9). The housing (5) is provided with an insertion port (10) that extends downward from its top through the through opening (9). The filter plate (7) is inserted into the insertion port (10) and its top extends out.

3. The one-way exhaust dust removal valve according to claim 2, characterized in that: The bottom wall of the housing (5) is provided with a dust discharge port (11), which is close to the filter plate (7).

4. A one-way exhaust dust removal valve according to claim 2 or 3, characterized in that: The filter plate (7) is provided with a mounting plate (12) on its top, and the mounting plate (12) is fixed to the top wall of the box (5) by bolts.

5. A one-way exhaust dust removal valve according to claim 1, characterized in that: The retaining ring (2) is inclined, and the valve disc (4) is correspondingly arranged with respect to the retaining ring (2).

6. A one-way exhaust dust removal valve according to claim 2, characterized in that: The filter plate (7) is set at an angle.

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