Automatic explosion-proof valve with high sealing performance

Abstract

The utility model relates to the technical field of explosion-proof valves, and discloses a high-sealing-performance automatic explosion-proof valve which comprises a valve body, a sealing plate is arranged in the valve body and divides the interior of the valve body into an air inlet cavity and an explosion-proof cavity, an explosion-proof disc is arranged on one side of the sealing plate and connected with the sealing plate through an installation screw, and the explosion-proof disc is connected with the air inlet cavity through an installation screw. An exhaust groove is formed in the top of the valve body and located in the left side of the sealing plate, a mounting pipe is arranged at one end of the valve body, an adjusting pipe is arranged in the mounting pipe in a sliding mode, and mounting assemblies are arranged at the other end of the valve body and one end of the adjusting pipe. According to the automatic explosion-proof valve, the automatic explosion-proof valve can be conveniently connected with the coal mine gas drainage pipelines through the installation assemblies, and the position of one installation assembly can be adjusted through the adjusting pipe arranged on the installation pipe in a sliding mode, so that the automatic explosion-proof valve can be installed between the two coal mine gas drainage pipelines at different intervals; the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of explosion-proof valves, in particular to an automatic explosion-proof valve with high sealing performance. Background Art

[0002] Mine gas is the main source of major safety accidents in coal mines, but at the same time, gas is also a high-quality resource; extracting and utilizing gas from coal seams can not only prevent and reduce the occurrence of major gas accidents in coal mines, ensure safe production in mines, but also protect the mining environment, obtain high-quality resources, and generate better economic and social benefits; coal mine gas extraction pipelines use automatic explosion-proof valves;

[0003] After searching, the high-sealing automatic explosion-proof valve disclosed in the application number CN201620000555.0 relates to a high-sealing automatic explosion-proof valve, whose structure includes a polytetrafluoroethylene shaft seal, an actuator, a cone, a packing seal groove, a main shaft, a guide mechanism and a cover plate. The main shaft is used for positioning, and the actuator is located at the top of the main shaft, and the polytetrafluoroethylene shaft seal structure is located at the connection between the actuator and the pipeline; the middle of the main shaft is a cover plate, and the guide mechanism is placed at the bottom of the main shaft; the packing seal groove, the groove body is designed to be wide inside and narrow outside, and is arranged on the bottom surface where the cover plate and the valve body contact, and the cover plate is used for pressing the edge at the top; the guide mechanism is placed at the bottom of the main shaft; the cover plate contacts the valve body, and the contact surface is a conical structure. The utility model is improved on the basis of the original cover plate type automatic explosion-proof valve, and uses a packing seal groove and a cone surface contact method to ensure the sealing of the mechanism and improve its safety factor;

[0004] However, the above method still has the following defects in actual use: the automatic explosion-proof valve is installed between two adjacent pipes, but it can only be installed between pipes with a fixed distance, and it is not convenient to adjust according to the distance between adjacent pipes. Utility Model Content

[0005] The utility model aims to provide an automatic explosion-proof valve with high sealing performance, which has the effect of being easy to be installed between two gas pipelines with different spacings.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions: an automatic explosion-proof valve with high sealing performance, comprising a valve body, a sealing plate is provided inside the valve body, and the interior of the valve body is divided into an air inlet chamber and an explosion-proof chamber, an explosion-proof disk is provided on one side of the sealing plate, and the explosion-proof disk is connected to the sealing plate by mounting screws, an exhaust groove is provided on the top of the valve body, and the exhaust groove is located on the left side of the sealing plate, a mounting tube is provided at one end of the valve body, an adjusting tube is slidably provided inside the mounting tube, a sealing sleeve is provided on the surface of the adjusting tube, and a mounting assembly is provided at the other end of the valve body and one end of the adjusting tube.

[0007] The utility model is further configured as follows: a valve port is provided at the top of the air inlet cavity, a valve stem is provided inside the valve body, a valve plate sliding with the valve stem is provided above the valve port, and the valve plate and the valve port have corresponding sizes, and are both configured in a conical shape, an actuator connected to the valve stem is provided at the top of the valve body, and a return spring sleeved on the outside of the valve stem is provided on the upper part of the valve plate.

[0008] The utility model is further configured as follows: the mounting assembly includes a mounting disk three, the mounting disk three is mounted on the other end of the valve body and one end of the regulating tube, a mounting cavity is provided inside the mounting disk three, a mounting hole is provided on the surface of the mounting disk three, and a through hole is provided in the middle of the mounting disk three.

[0009] The utility model is further configured as follows: a sealing gasket with a corresponding size is embedded in the installation cavity, and the sealing gasket is bonded to the installation plate three.

[0010] The utility model is further configured as follows: a first mounting plate is provided at one end of the valve body, a second mounting plate is provided at one end of the mounting pipe, and the first mounting plate is connected to the second mounting plate via connecting bolts.

[0011] The utility model is further configured as follows: a slide groove is provided on the inner wall of the mounting tube, a sliding block is provided on the surface of the adjusting tube, and the sliding block is slidably connected to the slide groove.

[0012] The utility model is further configured as follows: a mounting groove is provided on the surface of the adjusting tube, a sealing sleeve is sleeved on the surface of the mounting groove, so that the surface of the sealing sleeve and the surface of the adjusting tube are in the same plane, and the sealing sleeve and the adjusting tube are bonded.

[0013] In summary, the utility model has the following beneficial effects: the utility model facilitates the connection of the automatic explosion-proof valve with the coal mine gas extraction pipeline by means of the installation component provided, and the position of one of the installation components can be adjusted by means of an adjustment tube that is slidably arranged with the installation tube, so that the automatic explosion-proof valve can be installed between two coal mine gas extraction pipelines with different spacings, thereby improving practicality, and at the same time, the explosion-proof disk provided can buffer the impact force during a gas explosion, and the explosion-proof performance is stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the explosion structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the cross-sectional structure of the valve body of the utility model;

[0017] Figure 4 For this utility model Figure 3 A is an enlarged structural diagram of FIG.

[0018] In the figure: 1. valve body; 101. sealing plate; 102. valve stem; 103. valve port; 104. valve plate; 105. mounting plate 1; 106. return spring; 107. exhaust groove; 108. explosion-proof disk; 109. mounting screw; 2. actuator; 3. mounting pipe; 301. mounting plate 2; 302. slide groove; 4. connecting bolt; 5. adjusting pipe; 501. slider; 502. sealing sleeve; 6. mounting assembly; 601. mounting plate 3; 602. sealing gasket; 603. mounting hole. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings in the embodiments of the present invention.

[0020] See also Figures 1 to 4 In the embodiment of the utility model, a highly sealed automatic explosion-proof valve comprises a valve body 1, a sealing plate 101 is arranged inside the valve body 1, and the interior of the valve body 1 is divided into an air inlet chamber and an explosion-proof chamber, an explosion-proof disc 108 is arranged on one side of the sealing plate 101, when the gas explodes, the impact force directly acts on the explosion-proof disc 108 to prevent damage to the valve body 1, and the explosion-proof disc 108 is connected to the sealing plate 101 by mounting screws 109, and can be quickly replaced when the explosion-proof disc 108 is deformed by impact, an exhaust groove 107 is arranged on the top of the valve body 1, and the exhaust groove 107 is located on the left side of the sealing plate 101, an installation pipe 3 is arranged at one end of the valve body 1, and an adjusting pipe 5 is slidably arranged inside the installation pipe 3, and the position of the adjusting pipe 5 is adjusted so that it can be installed between two coal mine gas extraction pipelines with different spacings, a sealing sleeve 502 is arranged on the surface of the adjusting pipe 5, and an installation assembly 6 is arranged at the other end of the valve body 1 and one end of the adjusting pipe 5, so that the coal mine gas extraction pipeline can be quickly installed with the explosion-proof valve;

[0021] One end of the valve body 1 is provided with a mounting plate 105, and one end of the mounting tube 3 is provided with a mounting plate 2 301. The mounting plate 105 is connected to the mounting plate 2 301 by a connecting bolt 4, so as to facilitate the quick disassembly and assembly between the mounting tube 3 and the valve body 1.

[0022] The inner wall of the mounting tube 3 is provided with a slide groove 302, and the surface of the adjusting tube 5 is provided with a slider 501, and the slider 501 is slidably connected with the slide groove 302, and the sliding connection between the slider 501 and the slide groove 302 guides the movement of the adjusting tube 5;

[0023] The surface of the regulating tube 5 is provided with a mounting groove, and the sealing sleeve 502 is sleeved on the surface of the mounting groove, so that the surface of the sealing sleeve 502 and the surface of the regulating tube 5 are in the same plane, and the sealing sleeve 502 and the regulating tube 5 are bonded to increase the sealing between the regulating tube 5 and the mounting tube 3 to prevent gas leakage;

[0024] A valve port 103 is provided at the top of the air inlet cavity, a valve stem 102 is provided inside the valve body 1, a valve plate 104 sliding with the valve stem 102 is provided above the valve port 103, and the valve plate 104 corresponds to the size of the valve port 103, and both are set in a conical shape, an actuator 2 connected to the valve stem 102 is provided at the top of the valve body 1, and a return spring 106 sleeved on the outside of the valve stem 102 is provided on the upper part of the valve plate 104, and the actuator 2 is quickly disengaged from the valve stem 102, and the valve plate 104 quickly closes the valve port 103 on the valve body 1 under the elastic action of the return spring 106 to cut off the pipeline;

[0025] The mounting assembly 6 includes a mounting plate 3 601, which is mounted on the other end of the valve body 1 and one end of the regulating tube 5. The mounting plate 3 601 has a mounting cavity inside, which corresponds to the flange at the end of the coal mine gas extraction pipeline, so as to facilitate the installation of the coal mine gas extraction pipeline. The surface of the mounting plate 3 601 is provided with a mounting hole 603, and the middle of the mounting plate 3 601 is provided with a through hole, so as not to interfere with the passage of gas.

[0026] A sealing gasket 602 of corresponding size is embedded inside the installation cavity, and the sealing gasket 602 is bonded to the installation disk three 601. The provided sealing gasket 602 can increase the sealing performance of the connection between the installation disk three 601 and the end of the coal mine gas extraction pipeline.

[0027] When in use, first connect the end of one of the coal mine gas extraction pipelines so that the flange at its end is installed in the installation cavity of the installation plate three 601, and connect the end of one of the coal mine gas extraction pipelines with one end of the valve body 1 by bolts, and the provided sealing gasket 602 increases the sealing performance, and then adjust the position of the regulating pipe 5 by the sliding fit between the slider 501 and the slide groove 302, so that the installation cavity of the other installation plate three 601 is installed to the end of the other coal mine gas extraction pipeline, and connect the end of the coal mine gas extraction pipeline with the end of the regulating pipe 5 by bolts;

[0028] During normal operation, the explosion-proof valve is installed horizontally, and gas flows from one end to the end of the regulating tube 5 through the valve body 1. When the rapid explosion-proof valve is closed, the actuator 2 quickly disengages from the valve stem 102, and the valve plate 104 quickly closes the valve port 103 on the valve body 1 under the elastic action of the reset spring 106 to cut off the pipeline, preventing the flame from continuing to burn from one end of the valve body 1 to the other end, and when the gas explodes, the impact force directly acts on the explosion-proof disk 108 to prevent damage to the valve body 1.

[0029] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. An automatic explosion-proof valve with high sealing performance, comprising a valve body (1), characterized in that: The valve body (1) is provided with a sealing plate (101) inside, dividing the inside of the valve body (1) into an air inlet chamber and an explosion-proof chamber; a bursting disc (108) is provided on one side of the sealing plate (101), and the bursting disc (108) is connected to the sealing plate (101) via a mounting screw (109); an exhaust groove (107) is provided on the top of the valve body (1), and the exhaust groove (107) is located on the left side of the sealing plate (101); a mounting tube (3) is provided at one end of the valve body (1), an adjusting tube (5) is slidably provided inside the mounting tube (3), a sealing sleeve (502) is provided on the surface of the adjusting tube (5); a mounting assembly (6) is provided at the other end of the valve body (1) and at one end of the adjusting tube (5).

2. The automatic explosion-proof valve with high sealing performance according to claim 1 is characterized in that: A valve port (103) is provided at the top of the air inlet cavity, a valve stem (102) is provided inside the valve body (1), a valve plate (104) sliding with the valve stem (102) is provided above the valve port (103), and the valve plate (104) and the valve port (103) have corresponding sizes and are both configured in a conical shape, an actuator (2) connected to the valve stem (102) is provided at the top of the valve body (1), and a return spring (106) sleeved on the outside of the valve stem (102) is provided on the upper part of the valve plate (104).

3. The automatic explosion-proof valve with high sealing performance according to claim 1 is characterized in that: The mounting assembly (6) comprises a mounting plate three (601), wherein the mounting plate three (601) is mounted on the other end of the valve body (1) and one end of the regulating tube (5), wherein a mounting cavity is provided inside the mounting plate three (601), and a mounting hole (603) is provided on the surface of the mounting plate three (601), and a through hole is provided in the middle of the mounting plate three (601).

4. The automatic explosion-proof valve with high sealing performance according to claim 3 is characterized in that: A sealing gasket (602) of corresponding size is embedded in the interior of the installation cavity, and the sealing gasket (602) is bonded to the installation plate three (601).

5. The automatic explosion-proof valve with high sealing performance according to claim 1 is characterized in that: One end of the valve body (1) is provided with a mounting plate 1 (105), and one end of the mounting tube (3) is provided with a mounting plate 2 (301), and the mounting plate 1 (105) is connected to the mounting plate 2 (301) via a connecting bolt (4).

6. The automatic explosion-proof valve with high sealing performance according to claim 1 is characterized in that: The inner wall of the mounting tube (3) is provided with a sliding groove (302), the surface of the adjusting tube (5) is provided with a sliding block (501), and the sliding block (501) is slidably connected to the sliding groove (302).

7. The automatic explosion-proof valve with high sealing performance according to claim 1 is characterized in that: The surface of the regulating tube (5) is provided with a mounting groove, and the sealing sleeve (502) is sleeved on the surface of the mounting groove so that the surface of the sealing sleeve (502) and the surface of the regulating tube (5) are in the same plane, and the sealing sleeve (502) and the regulating tube (5) are bonded to each other.

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