Pneumatic one-way valve and dust remover

Abstract

The utility model discloses a pneumatic one-way valve and a dust remover. The pneumatic one-way valve comprises a valve body, a first heightening valve plate, a second heightening valve plate, a sealing baffle and a movable valve plate, the valve body is provided with a through air outlet connector. Pivot joint positions are arranged on the left side and the right side, corresponding to the air outlet connector, of the valve body; a bearing is arranged at the pivoting position; mounting positions for mounting the movable valve plate are arranged in the valve body at intervals; the sealing baffle is connected to the lower end face of the valve plate. The plurality of valve plates are rotatably connected to the bearing through a rotating shaft in an opening and closing manner and are positioned in the mounting position; the plurality of valve plates can selectively open or close the air outlet interface; thus, in actual use, the fan is started and stopped to control the valve plate to open or close the air outlet connector, zero leakage rate of the valve is achieved, it is ensured that air blown out by the fan does not overflow, external air can be prevented from entering the dust remover through the air outlet connector, and therefore the dust removal efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of dust collectors, in particular to a pneumatic one-way valve and a dust collector. Background Art

[0002] In the environmental protection industry, bag dust collectors are the primary equipment for treating flue gas generated by various boilers and incinerators. The dust collector's main structure is broadly divided into an ash hopper, air inlet duct, middle box, upper box, air outlet duct, bypass duct, injection pipe, and filter device. The specific working principle is: under the negative pressure of the fan, flue gas enters the ash hopper through the air inlet main and short air inlet duct. Coarse dust falls into the ash hopper, while fine dust rises with the airflow into the middle box, which is filled with filter cloth. The air then passes through the filter cloth and enters the upper box, and then to the air outlet duct, completing the dust removal process.

[0003] In order to meet the emergency needs such as bag filter failure maintenance or excessively high inlet flue gas temperature, it is necessary to install a flue bypass and bypass valve. With the development of my country's economy and environmental protection technology, environmental protection standards are constantly adjusted, and the dust concentration requirements of the bag filter outlet flue gas are also becoming increasingly stringent.

[0004] The currently widely used bag-type dust collector bypass valve is an ordinary single-layer poppet valve, which is usually composed of a valve body and several valve plates, and the valve plates are rotatably arranged on the valve body; however, in actual operation, the poppet valve is prone to the following problems: in actual operation, there will be a gap between the valve plate and the valve body near the air outlet due to its own structure, which will affect the effect of pulse injection, reduce the operating efficiency of the fan, and the high air leakage rate will easily cause high-concentration dust and flue gas that has not been dust-removed to directly enter the bag-type dust collector outlet flue through the bypass, resulting in a reduction in the overall sealing rate of the dust collector.

[0005] Therefore, it is necessary to study a new technical solution to solve the above problems. Utility Model Content

[0006] In view of this, the present invention aims to address the deficiencies in the existing technology, and its main purpose is to provide a pneumatic one-way valve and dust collector. Through the double-layer sealing structure design of several valve plates and sealing baffles, it effectively solves the problem of gaps between the valve plates and the valve body in traditional technology, which reduces the operating efficiency of the fan and is prone to air leakage.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A pneumatic one-way valve comprises a valve body, a first raised valve plate, a second raised valve plate, a sealing baffle and a movable valve disc; the first raised valve plate is connected to the front bottom end surface of the valve body, and the second raised valve plate is connected to the rear bottom end surface of the valve body;

[0009] The valve body has an air outlet interface provided therethrough; pivot points are provided on both sides of the valve body corresponding to the air outlet interface; bearings are provided at the pivot points; and mounting positions for the movable valve plate are provided at intervals within the valve body;

[0010] The sealing baffle is connected to the lower end surface of the valve plate; the plurality of valve plates are rotatably connected to the bearing through a rotating shaft and are located in the installation position; so that: the plurality of valve plates can selectively open or close the air outlet interface.

[0011] As a preferred solution, the valve body includes a first transverse valve plate, a second transverse valve plate, a first vertical valve plate, a second vertical valve plate and a connecting vertical plate; the front and rear sides of the first vertical valve plate and the second vertical valve plate are respectively connected to the inner sides of the first transverse valve plate and the second transverse valve plate to enclose and form a placement position; the connecting plates are respectively connected to the inner sides of the first vertical valve plate and the second vertical valve plate to separate the placement position into several installation positions.

[0012] As a preferred solution, the first raised valve plate is connected to the bottom end surface of the first transverse valve plate, and the second raised valve plate is arranged on the bottom end surface of the second transverse valve plate; wherein, the first raised valve plate and the second raised valve plate are L-shaped.

[0013] As a preferred solution, there are multiple pivoting positions, and the multiple pivoting positions are arranged on the first transverse valve plate and the second transverse plate at a front-to-back interval.

[0014] As a preferred solution, a laminar plate is also provided on the valve body, and the laminar plate includes a front end connecting part, a rear end connecting part and a lower end connecting part. The front end connecting part is connected to the inner side of the first transverse valve plate, the rear end connecting part is connected to the inner side of the second transverse valve plate, and the lower end connecting part is connected to the connecting vertical plate through the connecting plate.

[0015] As a preferred solution, the left and right sides of the valve body are further connected with a left positioning plate and a right positioning plate for connecting to the dust collector.

[0016] A dust collector includes a dust collector body, wherein the dust collector body is provided with an air inlet and an air outlet, and pneumatic one-way valves are provided at the air inlet and the air outlet. The pneumatic one-way valve is any one of the pneumatic one-way valves described above.

[0017] Compared with the prior art, the present invention has obvious advantages and beneficial effects. Specifically, it can be seen from the above technical solution that it mainly adopts the structural design and coordination between the valve body, the first cushioned valve plate, the second cushioned valve plate, the sealing baffle and the movable valve plate, and utilizes a double-layer sealing structure design of a plurality of valve plates and the sealing baffle. In this way, when the fan is actually used, the start and stop control valve plate opens or closes the air outlet interface, thereby achieving a zero leakage rate of the valve, ensuring that the air blown by the fan will not overflow, and preventing external gas from entering the dust collector through the air outlet interface, thereby improving the dust cleaning efficiency.

[0018] Secondly, the design of the first and second elevated valve plates raises the height of the valve body itself, so that sufficient rotation space is provided for several valve plates during use.

[0019] In order to more clearly illustrate the structural features and effects of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional diagram of a pneumatic one-way valve according to an embodiment of the present utility model;

[0021] Figure 2 This is a rear view of the pneumatic one-way valve according to an embodiment of the present utility model;

[0022] Figure 3 This is a cross-sectional view of a pneumatic one-way valve according to an embodiment of the present utility model;

[0023] Figure 4 yes Figure 3 A partial enlarged view of point A in the middle;

[0024] Figure 5 It is a structural diagram of an embodiment of the present utility model.

[0025] Description of the accompanying drawings:

[0026] 10. Valve body 11. First raised valve plate

[0027] 12. Second raised valve plate 13. Sealing baffle

[0028] 14. Movable valve plate 15. Installation position

[0029] 16. Left positioning plate 17. Right positioning plate

[0030] 18. Laminar flow plate 181. Front end connection

[0031] 182, rear end connection part 183, lower end connection part

[0032] 184, connecting plate 19, air outlet interface

[0033] 101. First transverse valve plate

[0034] 102, second transverse valve plate 103, first vertical valve plate

[0035] 104, second vertical valve plate 105, connecting vertical plate

[0036] 106, pivot point 107, bearing

[0037] 108. Shaft

[0038] 20. Dust collector body 21. Air inlet

[0039] 22. Air outlet 23. Fan

[0040] 24. Air duct 30. Pneumatic one-way valve. DETAILED DESCRIPTION

[0041] Please refer to Figures 1 to 5 As shown, it shows the specific structure of an embodiment of the present utility model.

[0042] In the description of the present invention, it should be noted that directional words, such as the terms "up", "down", "front", "back", "left", "right", etc., indicating directions and positional relationships are based on the directions or positional relationships shown in the drawings or during normal wear and use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as limiting the specific protection scope of the present invention.

[0043] A pneumatic one-way valve includes a valve body 10, a first raised valve plate 11, a second raised valve plate 12, a sealing baffle 13 and a movable valve disc 14.

[0044] Preferably, the valve body 10 includes a first transverse valve plate 101, a second transverse valve plate 102, a first vertical valve plate 103, a second vertical valve plate 104 and a connecting vertical plate 105; the front and rear sides of the first vertical valve plate 103 and the second vertical valve plate 104 are respectively connected to the inner sides of the first transverse valve plate 101 and the second transverse valve plate 102 to enclose and form a placement position; the connecting plate 184 is respectively connected to the inner sides of the first vertical valve plate 103 and the second vertical valve plate 104 to separate the placement position into several installation positions 15.

[0045] The first elevated valve plate 11 is connected to the front bottom end surface of the valve body 10, and the second elevated valve plate 12 is connected to the rear bottom end surface of the valve body 10; preferably, the first elevated valve plate 11 is connected to the bottom end surface of the first transverse valve plate 101, and the second elevated valve plate 12 is arranged on the bottom end surface of the second transverse valve plate 102; wherein, the first elevated valve plate 11 and the second elevated valve plate 12 are L-shaped.

[0046] Preferably, a laminar plate 18 is also provided on the valve body 10, and the laminar plate 18 includes a front end connecting portion 181, a rear end connecting portion 182 and a lower end connecting portion 183, the front end connecting portion 181 is connected to the inner side of the first transverse valve plate 101, the rear end connecting portion 182 is connected to the inner side of the second transverse valve plate 102, and the lower end connecting portion 183 is connected to the connecting vertical plate 105 through the connecting plate 184.

[0047] The valve body 10 has an air outlet port 19 extending therethrough. Pivot points 106 are provided on both sides of the valve body 10 corresponding to the air outlet port 19. Preferably, there are multiple pivot points 106, each spaced apart on the first transverse valve plate 101 and the second transverse plate. Bearings 107 are provided at the pivot points 106. Mounting points 15 for mounting the movable valve disc 14 are spaced apart within the valve body 10.

[0048] Preferably, the left and right sides of the valve body 10 are also connected with a left positioning plate 16 and a right positioning plate 17 for connecting with the dust collector. The design of the left positioning plate 16 and the right positioning plate 17 facilitates subsequent connection and positioning with the dust collector body 20.

[0049] The sealing baffle 13 is connected to the lower end surface of the valve plate; the several valve plates are rotatably connected to the bearing 107 through the rotating shaft 108 and are located in the installation position 15; so that: the several valve plates can selectively open the air outlet interface 19 or close the air outlet interface 19; the several movable valve plates 14 adopt a stepped design, with a movable valve plate 14 with a slope facing inward. The dust will fall into the interior of the dust collector under the action of the inward slope of the movable valve plate 14, which can prevent the dust in the flue gas from accumulating in the valve sealing wind structure and causing blockage.

[0050] A dust collector includes a dust collector body 20, the dust collector body 20 being provided with an air inlet 21 and an air outlet 22. Pneumatic check valves 30 are provided at both the air inlet 21 and the air outlet 22. The pneumatic check valves 30 are the pneumatic check valves 30 described above. A fan 23 and an air duct 24 are also provided on the side of the dust collector body 20. The output end of the fan 23 is connected to the air duct 24, and the output end of the air duct 24 is arranged toward the pneumatic check valve 30.

[0051] The design focus of the utility model is that it mainly adopts the structural design and coordination between the valve body, the first raised valve plate, the second raised valve plate, the sealing baffle and the movable valve plate, and utilizes the double-layer sealing structure design of the valve plates and the sealing baffles. In this way, when the fan is actually used, the start and stop control valve plate opens or closes the air outlet interface, thereby achieving a zero leakage rate of the valve, ensuring that the air blown by the fan will not overflow, and preventing external gas from entering the dust collector through the air outlet interface, thereby improving the dust cleaning efficiency;

[0052] Secondly, the design of the first and second elevated valve plates raises the height of the valve body itself, so that sufficient rotation space is provided for several valve plates during use.

[0053] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A pneumatic one-way valve, characterized in that: It includes a valve body, a first raised valve plate, a second raised valve plate, a sealing baffle and a movable valve plate; the first raised valve plate is connected to the front bottom end surface of the valve body, and the second raised valve plate is connected to the rear bottom end surface of the valve body; The valve body has an air outlet interface provided therethrough; pivot points are provided on both sides of the valve body corresponding to the air outlet interface; bearings are provided at the pivot points; and mounting positions for the movable valve plate are provided at intervals within the valve body; The sealing baffle is connected to the lower end surface of the valve plate; the plurality of valve plates are rotatably connected to the bearing through a rotating shaft and are located in the installation position; so that: the plurality of valve plates can selectively open or close the air outlet interface.

2. The pneumatic one-way valve according to claim 1, characterized in that: The valve body includes a first transverse valve plate, a second transverse valve plate, a first vertical valve plate, a second vertical valve plate and a connecting vertical plate; the front and rear sides of the first vertical valve plate and the second vertical valve plate are respectively connected to the inner sides of the first transverse valve plate and the second transverse valve plate to form a placement position; the connecting vertical plate is respectively connected to the inner sides of the first vertical valve plate and the second vertical valve plate to separate the placement position into several installation positions.

3. The pneumatic one-way valve according to claim 2, characterized in that: The first raised valve plate is connected to the bottom end surface of the first transverse valve plate, and the second raised valve plate is arranged on the bottom end surface of the second transverse valve plate; wherein the first raised valve plate and the second raised valve plate are L-shaped.

4. The pneumatic one-way valve according to claim 2, characterized in that: There are multiple pivoting positions, which are arranged on the first transverse valve plate and the second transverse plate at intervals in front and back.

5. The pneumatic one-way valve according to claim 2, characterized in that: A laminar plate is also provided on the valve body, and the laminar plate includes a front end connecting part, a rear end connecting part and a lower end connecting part. The front end connecting part is connected to the inner side of the first transverse valve plate, the rear end connecting part is connected to the inner side of the second transverse valve plate, and the lower end connecting part is connected to the connecting vertical plate through the connecting plate.

6. The pneumatic one-way valve according to claim 1, characterized in that: The left and right sides of the valve body are also connected with a left positioning plate and a right positioning plate for connecting with a dust collector.

7. A dust collector, characterized in that: It comprises a dust collector body, which is provided with an air inlet and an air outlet. Both the air inlet and the air outlet are provided with pneumatic one-way valves, and the pneumatic one-way valve is the pneumatic one-way valve according to any one of claims 1 to 6.

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