Sealing device for assembling air explosion-proof valve

Abstract

The utility model provides a sealing device for assembling an air explosion-proof valve, which relates to the technical field of air explosion-proof valve assembling, and comprises a valve body, the valve body comprises an execution cavity, an execution mechanism is arranged in the execution cavity, communicating pipes are fixedly arranged at two ends of the execution cavity, one end of each communicating pipe is fixedly provided with a flange plate, and the other end of each communicating pipe is fixedly provided with a flange plate. A connecting hole is formed in the surface of the flange plate, the outer side of the flange plate is sleeved with a sealing assembly, the sealing assembly comprises two sealing sleeves, a flange plate groove is formed in the middle of the inner side of each sealing sleeve, the flange plate grooves are formed in the outer side of the flange plate in a sleeving mode, and sealing strips are arranged on the two sides of each flange plate groove and attached to the outer side of the communicating pipe. According to the utility model, the reinforcing and sealing effects can be effectively achieved, looseness and leakage during explosion are avoided, and the practical value is higher.

Description

Technical Field

[0001] The utility model belongs to the technical field of air explosion-proof valve assembly, and more specifically, particularly relates to a sealing device for air explosion-proof valve assembly. Background Art

[0002] Air explosion-proof valves are valves specially designed to prevent explosions from spreading in the air. Such valves are usually installed in environments where explosions may occur, such as chemical, petroleum, natural gas and other industrial fields. When an explosion occurs, air explosion-proof valves can be quickly closed to prevent the spread of explosion waves, thereby protecting equipment and personnel safety. The installation of air explosion-proof valves needs to ensure sealing performance to prevent medium leakage. In explosion-proof valves, the sealing structure needs to be able to withstand harsh conditions such as high temperature and high pressure to ensure the sealing of the valve.

[0003] Based on the above, the inventors have found the following problems: the current assembly of air explosion-proof valves usually involves fixing the flange of the valve body to the flange of the pipe, and adding a sealing ring between the flanges. This method can achieve a certain sealing effect, but it is easy to cause the connection to loosen when an explosion occurs, resulting in leakage of the medium, which is inconvenient to use.

[0004] Therefore, in view of this, the existing structure and defects are studied and improved, and a sealing device for assembling an air explosion-proof valve is provided, in order to achieve a purpose with greater practical value. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a sealing device for assembling an air explosion-proof valve.

[0006] The purpose and effect of the sealing device for assembling an air explosion-proof valve of the utility model are achieved by the following specific technical means:

[0007] A sealing device for assembling an air explosion-proof valve comprises a valve body, the valve body comprises an execution chamber, an execution mechanism is arranged inside the execution chamber, connecting pipes are fixedly installed at both ends of the execution chamber, a flange is fixedly installed at one end of the connecting pipe, a connecting hole is provided on the surface of the flange, a sealing assembly is sleeved on the outer side of the flange, the sealing assembly comprises two sealing sleeves, a flange groove is provided on the middle part of the inner side of the sealing sleeve, the flange groove is sleeved on the outer side of the flange, sealing strips are arranged on both sides of the flange groove, and the sealing strips are fitted to the outer side of the connecting pipe.

[0008] The beneficial effect of adopting the above further scheme is that, by providing an actuator inside the execution chamber, the actuator can quickly close the valve body when an explosion occurs, thereby quickly cutting off the propagation of the explosion wave and reducing losses. A flange is fixedly installed at one end of the connecting pipe, and a connecting hole is provided on the surface of the flange, which is convenient for connecting the device with the transmission pipeline. A flange groove is provided in the middle of the inner side of the sealing sleeve, and the flange groove is sleeved on the outer side of the flange, which is convenient for sleeveing ​​the sealing assembly on the outer side of the connection between the device and the connecting pipe, thereby achieving a reinforcement and sealing effect and avoiding looseness and leakage when an explosion occurs. Sealing strips are provided on both sides of the flange groove, and the sealing strips are fitted with the outer side of the connecting pipe, which is convenient for improving the sealing performance of the sealing assembly and avoiding medium leakage during use.

[0009] Furthermore, fixing ears are fixedly installed on the side surfaces of both ends of the sealing sleeve, and a fixing hole is opened in the middle of the fixing ears.

[0010] Furthermore, a fixing bolt is inserted into the middle of the fixing hole.

[0011] The beneficial effect of adopting the above further scheme is that a fixing bolt is inserted through the middle of the fixing hole, which makes it easy to fix the two sealing sleeves with the fixing bolts, so that the sealing sleeves are firmly fixed on the outside of the flange, so that the sealing assembly can reinforce and seal the connection between the connecting pipe and the transmission pipeline.

[0012] Furthermore, the actuator includes a guide rod, and connecting rods are fixedly installed at both ends of the guide rod, and the connecting rods are fixedly connected to the inner side of the connecting pipe.

[0013] The beneficial effect of adopting the above further solution is that connecting rods are fixedly installed at both ends of the guide rod, and the connecting rods are fixedly connected to the inner side of the connecting pipe, so that the connecting pipe can be fixedly installed on the inner side of the execution chamber.

[0014] Furthermore, a valve plate is sleeved on the outer side of the guide rod, and the valve plate is slidably connected to the guide rod.

[0015] The beneficial effect of adopting the above further solution is that a valve plate is sleeved on the outer side of the guide rod, and the valve plate is slidably connected to the guide rod, so that the valve plate can slide on the guide rod easily.

[0016] Furthermore, the outer diameter of the valve plate is larger than the inner diameter of the connecting pipe, and the outer diameter of the valve plate is smaller than the inner diameter of the execution chamber.

[0017] The beneficial effect of adopting the above further scheme is that, by making the outer diameter of the valve plate larger than the inner diameter of the connecting pipe and smaller than the inner diameter of the execution chamber, the valve plate does not hinder the flow of the medium when it is in the middle of the execution chamber. When the valve plate is attached to one side of the connecting pipe, it can seal the connecting pipe, thereby cutting off the propagation of the explosion wave and avoiding losses.

[0018] Furthermore, a push spring is fixedly mounted on one side of the valve plate, a spring seat is fixedly mounted on the other end of the push spring, and the spring seat is fixedly mounted on the middle part of the connecting rod at one end of the guide rod.

[0019] The beneficial effect of adopting the above further scheme is that a spring seat is fixedly installed on the other end of the push spring, and the spring seat is fixedly installed in the middle of the connecting rod at one end of the guide rod, so that the push spring pushes the valve plate to the middle of the execution chamber. When the medium circulates normally, the pressure is not enough to push the push spring. When an explosion occurs, the explosion wave pushes the valve plate to compress the push spring, so that the valve plate fits with the connecting pipe, thereby cutting off the explosion wave.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. The sealing device for assembling air explosion-proof valves has an actuator arranged inside the actuator chamber, which is convenient for the actuator to quickly close the valve body when an explosion occurs, thereby quickly cutting off the propagation of the explosion wave and reducing losses. A flange is fixedly installed at one end of the connecting pipe, and a connecting hole is opened on the surface of the flange, which is convenient for connecting the device with the transmission pipeline. A flange groove is opened in the middle of the inner side of the sealing sleeve, and the flange groove is sleeved on the outer side of the flange, which is convenient for sleeves of the sealing assembly on the outer side of the connection between the device and the connecting pipe, thereby achieving the effect of reinforcement and sealing, avoiding looseness and leakage when an explosion occurs. Sealing strips are arranged on both sides of the flange groove, and the sealing strips are fitted with the outer side of the connecting pipe, which is convenient for improving the sealing performance of the sealing assembly and avoiding medium leakage during use;

[0022] 2. The sealing device for assembling the air explosion-proof valve has a fixing bolt inserted through the middle of the fixing hole, which is convenient for fixing the two sealing sleeves with the fixing bolts, so that the sealing sleeves are firmly fixed on the outside of the flange, so that the sealing assembly can reinforce and seal the connection between the connecting pipe and the transmission pipeline; the utility model can effectively play the role of reinforcement and sealing, avoid loosening and leakage when an explosion occurs, and has high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional diagram of a sealing device for assembling an air explosion-proof valve of the utility model;

[0024] Figure 2 This is an exploded view of a sealing device for assembling an air explosion-proof valve of the utility model;

[0025] Figure 3 It is an exploded view of the sealing assembly of the utility model;

[0026] Figure 4 It is a cutaway view of the valve body of the utility model.

[0027] In the figure, the corresponding relationship between the component names and the figure numbers is as follows:

[0028] 101. Valve body; 10101. Actuating chamber; 10102. Connecting pipe; 10103. Flange; 10104. Connecting hole; 102. Sealing assembly; 10201. Sealing sleeve; 10202. Flange groove; 10203. Sealing strip; 10204. Fixing ear; 10205. Fixing hole; 10206. Fixing bolt; 103. Actuator; 10301. Guide rod; 10302. Connecting rod; 10303. Spring seat; 10304. Push spring; 10305. Valve plate. DETAILED DESCRIPTION

[0029] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0030] Example:

[0031] As attached Figure 1 To Attachment Figure 4 As shown:

[0032] The utility model provides a sealing device for assembling an air explosion-proof valve, comprising a valve body 101, wherein the valve body 101 comprises an execution chamber 10101, wherein an execution mechanism 103 is arranged inside the execution chamber 10101, and the execution mechanism 103 is arranged inside the execution chamber 10101, so that the execution mechanism 103 can quickly close the valve body 101 when an explosion occurs, thereby quickly cutting off the propagation of the explosion wave and reducing the loss, wherein connecting pipes 10102 are fixedly installed at both ends of the execution chamber 10101, wherein a flange 10103 is fixedly installed at one end of the connecting pipe 10102, wherein a connecting hole 10104 is provided on the surface of the flange 10103, wherein a flange 10103 is fixedly installed at one end of the connecting pipe 10102, wherein a connecting hole 10104 is provided on the surface of the flange 10103, so that the device can be connected with a transmission pipeline, and a sealing component 102 is sleeved on the outer side of the flange 10103, and the sealing component 102 includes two sealing sleeves 10201, a flange groove 10202 is opened in the middle of the inner side of the sealing sleeve 10201, and the flange groove 10202 is sleeved on the outside of the flange 10103. The flange groove 10202 is opened in the middle of the inner side of the sealing sleeve 10201, and the flange groove 10202 is sleeved on the outside of the flange 10103, so that the sealing component 102 is sleeved on the outside of the connection between the device and the connecting pipe 10102, so as to achieve the effect of reinforcement and sealing to avoid loosening and leakage when an explosion occurs. Sealing strips 10203 are provided on both sides of the flange groove 10202, and the sealing strips 10203 are fitted with the outside of the connecting pipe 10102. Sealing strips 10203 are provided on both sides of the flange groove 10202, and the sealing strips 10203 are fitted with the outside of the connecting pipe 10102, so as to improve the sealing performance of the sealing component 102 and avoid medium leakage during use.

[0033] Among them, fixing ears 10204 are fixedly installed on the side surfaces of both ends of the sealing sleeve 10201, and a fixing hole 10205 is opened in the middle of the fixing ear 10204.

[0034] Among them, a fixing bolt 10206 is inserted through the middle of the fixing hole 10205, and the fixing bolt 10206 is inserted through the middle of the fixing hole 10205, so that the two sealing sleeves 10201 can be fixed with the fixing bolt 10206, so that the sealing sleeves 10201 can be firmly fixed on the outside of the flange 10103, so that the sealing assembly 102 can reinforce and seal the connection between the connecting pipe 10102 and the transmission pipeline.

[0035] Among them, the actuator 103 includes a guide rod 10301, and connecting rods 10302 are fixedly installed at both ends of the guide rod 10301. The connecting rods 10302 are fixedly connected to the inner side of the connecting tube 10102. The connecting rods 10302 are fixedly installed at both ends of the guide rod 10301, and the connecting rods 10302 are fixedly connected to the inner side of the connecting tube 10102, which facilitates the fixing of the connecting tube 10102 on the inner side of the actuator chamber 10101.

[0036] Among them, the valve plate 10305 is sleeved on the outer side of the guide rod 10301, and the valve plate 10305 is slidably connected to the guide rod 10301. The valve plate 10305 is sleeved on the outer side of the guide rod 10301, and the valve plate 10305 is slidably connected to the guide rod 10301, so that the valve plate 10305 can slide on the guide rod 10301.

[0037] Among them, the outer diameter of the valve plate 10305 is larger than the inner diameter of the connecting pipe 10102, and the outer diameter of the valve plate 10305 is smaller than the inner diameter of the execution chamber 10101. By making the outer diameter of the valve plate 10305 larger than the inner diameter of the connecting pipe 10102, and the outer diameter of the valve plate 10305 smaller than the inner diameter of the execution chamber 10101, the valve plate 10305 does not hinder the flow of the medium when it is in the middle of the execution chamber 10101. When the valve plate 10305 is attached to one side of the connecting pipe 10102, it can block the connecting pipe 10102, thereby cutting off the propagation of the explosion wave and avoiding losses.

[0038] Among them, a push spring 10304 is fixedly installed on one side of the valve plate 10305, and a spring seat 10303 is fixedly installed on the other end of the push spring 10304. The spring seat 10303 is fixedly installed on the middle part of the connecting rod 10302 at one end of the guide rod 10301. The spring seat 10303 is fixedly installed on the other end of the push spring 10304. The spring seat 10303 is fixedly installed on the middle part of the connecting rod 10302 at one end of the guide rod 10301, so that the push spring 10304 pushes the valve plate 10305 to the middle part of the execution chamber 10101. When the medium circulates normally, the pressure is not enough to push the push spring 10304. When an explosion occurs, the explosion wave pushes the valve plate 10305 to compress the push spring 10304, so that the valve plate 10305 fits with the connecting pipe 10102, thereby cutting off the explosion wave.

[0039] The specific usage and function of this embodiment are as follows:

[0040] When using this product, first, a flange 10103 is fixedly installed at one end of the connecting pipe 10102, and a connecting hole 10104 is provided on the surface of the flange 10103 to facilitate the connection between the device and the transmission pipeline. A flange groove 10202 is provided in the middle of the inner side of the sealing sleeve 10201, and the flange groove 10202 is sleeved on the outer side of the flange 10103 to facilitate the sleeve of the sealing component 102 on the outer side of the connection between the device and the connecting pipe 10102, thereby achieving the effect of reinforcement and sealing to avoid loosening and leakage when an explosion occurs. Sealing strips 10203 are provided on both sides of the flange groove 10202 to seal The strip 10203 fits with the outer side of the connecting pipe 10102, which is convenient for improving the sealing performance of the sealing component 102 and avoiding leakage of the medium during use. A fixing bolt 10206 is inserted through the middle of the fixing hole 10205, which is convenient for fixing the two sealing sleeves 10201 with the fixing bolt 10206, so that the sealing sleeves 10201 are firmly fixed on the outer side of the flange 10103, so that the sealing component 102 can reinforce and seal the connection between the connecting pipe 10102 and the transmission pipeline. Connecting rods 10302 are fixedly installed at both ends of the guide rod 10301, and the connecting rod 10302 and the connecting pipe 10102 is fixedly connected to the inside of the execution chamber 10101, so that the connecting pipe 10102 is fixedly installed on the inside of the execution chamber 10101. A valve plate 10305 is sleeved on the outside of the guide rod 10301. The valve plate 10305 is slidably connected to the guide rod 10301, so that the valve plate 10305 slides on the guide rod 10301. The outer diameter of the valve plate 10305 is larger than the inner diameter of the connecting pipe 10102, and the outer diameter of the valve plate 10305 is smaller than the inner diameter of the execution chamber 10101, so that the valve plate 10305 does not hinder the flow of the medium when it is in the middle of the execution chamber 10101. When the valve plate 10305 fits one side of the connecting pipe 10102, it can play a role in the connecting pipe. 10102 has a blocking effect, thereby cutting off the propagation of the explosion wave to avoid loss. A spring seat 10303 is fixedly installed on the other end of the push spring 10304. The spring seat 10303 is fixedly installed in the middle of the connecting rod 10302 at one end of the guide rod 10301, so that the push spring 10304 can push the valve plate 10305 to the middle of the execution chamber 10101. When the medium circulates normally, the pressure is not enough to push the push spring 10304. When an explosion occurs, the explosion wave pushes the valve plate 10305 to compress the push spring 10304, so that the valve plate 10305 fits with the connecting pipe 10102, thereby cutting off the explosion wave.

[0041] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A sealing device for assembling an air explosion-proof valve, characterized in that: The invention comprises a valve body (101), wherein the valve body (101) comprises an execution chamber (10101), an execution mechanism (103) is arranged inside the execution chamber (10101), connecting pipes (10102) are fixedly installed at both ends of the execution chamber (10101), a flange (10103) is fixedly installed at one end of the connecting pipe (10102), a connection hole (10104) is opened on the surface of the flange (10103), and the flange (10103) is fixedly installed at one end of the connecting pipe (10102). ) is sleeved on the outside of the connecting pipe (10103), wherein the sealing assembly (102) comprises two sealing sleeves (10201), wherein a flange groove (10202) is provided in the middle of the inner side of the sealing sleeve (10201), wherein the flange groove (10202) is sleeved on the outside of the flange (10103), and sealing strips (10203) are provided on both sides of the flange groove (10202), wherein the sealing strips (10203) are in contact with the outer side of the connecting pipe (10102).

2. A sealing device for assembling an air explosion-proof valve as claimed in claim 1, characterized in that: Fixing ears (10204) are fixedly installed on the side surfaces of both ends of the sealing sleeve (10201), and a fixing hole (10205) is opened in the middle of the fixing ear (10204).

3. A sealing device for assembling an air explosion-proof valve as claimed in claim 2, characterized in that: A fixing bolt (10206) is inserted into the middle of the fixing hole (10205).

4. A sealing device for assembling an air explosion-proof valve as claimed in claim 1, characterized in that: The actuator (103) comprises a guide rod (10301), and connecting rods (10302) are fixedly installed at both ends of the guide rod (10301), and the connecting rod (10302) is fixedly connected to the inner side of the connecting pipe (10102).

5. A sealing device for assembling an air explosion-proof valve as claimed in claim 4, characterized in that: The guide rod (10301) is sleeved with a valve plate (10305) on the outside, and the valve plate (10305) is slidably connected to the guide rod (10301).

6. A sealing device for assembling an air explosion-proof valve as claimed in claim 5, characterized in that: The outer diameter of the valve plate (10305) is larger than the inner diameter of the connecting tube (10102), and the outer diameter of the valve plate (10305) is smaller than the inner diameter of the execution chamber (10101).

7. A sealing device for assembling an air explosion-proof valve as claimed in claim 6, characterized in that: A push spring (10304) is fixedly mounted on one side of the valve plate (10305), a spring seat (10303) is fixedly mounted on the other end of the push spring (10304), and the spring seat (10303) is fixedly mounted on the middle part of the connecting rod (10302) at one end of the guide rod (10301).

Images