A deflagration and detonation suppression type flame arrester

Abstract

The utility model discloses a kind of explosion resistance detonation type flame arresters, it relates to flame arrester technical field, for the conveying pipeline of conveying gas, the inner wall of conveying pipeline is equipped with fixing frame, and the side of fixing frame is equipped with support frame, metal block is placed in the hollow area inside support frame, and metal block can change by thermal expansion and cold shrink, rubber sealing block is arranged between two groups of metal block, and arc rubber block for sealing is arranged between the edge of metal block and the inner wall of conveying pipeline.The explosion resistance detonation type flame arrester can be rotated according to demand when using rotating block, so that rotating block and the through-hole of mounting frame are aligned, at this time, mounting frame can be pulled, so that mounting frame and support frame are separated, metal block inside support frame is conveniently and quickly replaced, so that the sealing effect of metal block is not affected, after replacing metal block, mounting frame and support frame are fixed by rotating block, so that metal block can be oriented and positioned.

Description

Technical Field

[0001] This utility model relates to the field of flame arrester technology, specifically a detonation-resistant flame arrester. Background Technology

[0002] Explosion-proof flame arresters are safety devices used to prevent the propagation of blast waves in pipelines. They are widely used in flammable and explosive industries such as chemical, petroleum, and natural gas. Their main function is to prevent flames or blast waves from spreading from one area to another, thereby avoiding the escalation of accidents.

[0003] In order to increase the sealing effect inside the pipeline, existing explosion-proof flame arresters use a flame arrestor core and fix it inside the pipeline. After long-term use, the sealing effect of the flame arrestor core will be affected, and the flame arrestor core needs to be replaced. However, since the flame arrestor core is fixed inside the pipeline, it is inconvenient to replace it. Utility Model Content

[0004] The purpose of this invention is to provide a detonation-resistant flame arrester to solve the problem mentioned in the background art that it is inconvenient to replace the internal flame arrestor core in currently used detonation-resistant flame arresters.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a detonation arrestor, comprising: a conveying pipe for conveying gas, a fixing frame installed on the inner wall of the conveying pipe, and a support frame installed on one side of the fixing frame, wherein a metal block is placed in the hollow area inside the support frame, and the metal block can change due to thermal expansion and contraction.

[0006] A rubber sealing block is provided between the two sets of metal blocks, and an arc-shaped rubber block for sealing is provided between the edge of the metal block and the inner wall of the conveying pipe.

[0007] A mounting bracket for guiding and fixing a metal block is installed on one side of the support frame. Through holes are opened around the perimeter of the mounting bracket. A fixing column is installed through the through holes of the mounting bracket on one side of the support frame. A connecting shaft is connected to one side of the fixing column. A rotating block that matches the size of the through holes is connected to one side of the connecting shaft.

[0008] Preferably, the mounting frame and the support frame are detachable, and the shapes of the mounting frame and the support frame are matched.

[0009] Preferably, the rotating block can be rotated via a connecting shaft and a fixed column, and the rotating blocks are arranged in a circular array of four groups along the center line of the mounting frame.

[0010] Preferably, the inner wall of the conveying pipeline is also equipped with fixing blocks, and a guide rod is connected between the two sets of fixing blocks.

[0011] Preferably, a movable plate is slidably connected to the outer side of the guide rod, and multiple sets of ventilation holes are opened in the middle of the movable plate.

[0012] Preferably, spring one and spring two are respectively connected between the two sides of the movable plate and the guide rod.

[0013] Preferably, the movable plate can slide along the guide rod, and the guide rod is arranged in a circular array of four groups about the center line of the conveying pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This explosion-proof flame arrester allows the rotating block to be rotated so that it does not limit the mounting bracket. This allows the mounting bracket to be removed from one side of the support frame, facilitating the replacement of the metal block inside the support frame without affecting the sealing and flame-arresting effect of the metal block.

[0016] 2. This explosion-proof flame arrester can slide along the guide rod via a movable plate. When the movable plate slides, it compresses spring one on the outside of the guide rod and stretches spring two. Through spring one and spring two, the movable plate can buffer the gas impact force and avoid damage to the metal block. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a three-dimensional structural diagram of the fixing frame of this utility model;

[0019] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the rubber sealing block of this utility model;

[0021] Figure 5 This utility model Figure 2 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Conveying pipe; 2. Fixed frame; 3. Support frame; 4. Metal block; 5. Rubber sealing block; 6. Arc-shaped rubber block; 7. Mounting frame; 8. Through hole; 9. Fixed column; 10. Connecting shaft; 11. Rotating block; 12. Fixed block; 13. Guide rod; 14. Movable plate; 15. Vent hole; 16. Spring 1; 17. Spring 2. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1 and Figure 3 This utility model provides a technical solution: a detonation arrestor, comprising: a conveying pipe 1, a fixing frame 2 installed on the inner wall of the conveying pipe 1, and a support frame 3 installed on one side of the fixing frame 2. The support frame 3 has a hollow structure inside and places metal blocks 4 thereon. A rubber sealing block 5 is provided between the two sets of metal blocks 4. An arc-shaped rubber block 6 for sealing is provided between the edge of the metal block 4 and the inner wall of the conveying pipe 1.

[0025] exist Figure 1 and Figure 3 In the middle: When a fire occurs inside the conveying pipe 1, the metal block 4 will expand when heated, causing the two sets of metal blocks 4 to squeeze the rubber sealing block 5 in the middle of the support frame 3. At the same time, the rubber sealing block 5 will expand towards the edge and squeeze the arc-shaped rubber block 6 on the inner wall of the conveying pipe 1. When the rubber sealing block 5 and the arc-shaped rubber block 6 deform, they can play a sealing role, thereby playing a role in fire prevention and avoiding the spread of fire.

[0026] Conversely, under normal temperature conditions, the metal block 4 will recover, and the gas inside the conveying pipe 1 will flow through the gap between the two sets of metal blocks 4 and the gap between the metal block 4 and the inner wall of the conveying pipe 1, so it will not affect the normal conveying of gas.

[0027] exist Figures 2-5 In the middle: A mounting bracket 7 for guiding and fixing the metal block 4 is installed on one side of the support frame 3. The mounting bracket 7 and the support frame 3 are detachable and their shapes match. Through holes 8 are opened around the perimeter of the mounting bracket 7. A fixing post 9 is installed on one side of the support frame 3 through the through hole 8 of the mounting bracket 7. A connecting shaft 10 is connected to one side of the fixing post 9. A rotating block 11 that matches the size of the through hole 8 is connected to one side of the connecting shaft 10. The rotating block 11 can rotate through the connecting shaft 10 and the fixing post 9. There are also four sets of rotating blocks 11 arranged in a ring along the center line of the mounting bracket 7.

[0028] exist Figures 2-5In the middle: the rotating block 11 on one side of the fixed column 9 can be rotated by the connecting shaft 10. When the rotating block 11 is rotated to be aligned with the through hole 8, the mounting bracket 7 can be pulled to one side without the limiting effect of the rotating block 11. This allows the mounting bracket 7 to be separated from the support frame 3, making it convenient to replace the metal block 4 in the support frame 3 and avoiding the metal block 4 from affecting the overall thermal expansion and contraction effect for a long time.

[0029] When installing the metal block 4, simply connect the metal block 4 to the support frame 3, then align the through hole 8 of the mounting frame 7 with the fixing post 9, and simultaneously rotate the rotating block 11 so that the rotating block 11 is also aligned with the through hole 8 of the mounting frame 7. At this point, the mounting frame 7 can be connected to one side of the support frame 3, so that the fixing post 9 on one side of the support frame 3 passes through the through hole 8 of the mounting frame 7. When the fixing post 9 passes through the through hole 8 of the mounting frame 7, rotate the rotating block 11 again so that the rotating block 11 is misaligned with the through hole 8 of the mounting frame 7. At this point, the mounting frame 7 and the support frame 3 can be connected through the rotating block 11. The stability of the metal block 4 can be increased by connecting the mounting frame 7 and the support frame 3.

[0030] exist Figure 1 and Figure 3 In the middle: a fixing block 12 is also installed on the inner wall of the conveying pipe 1. A guide rod 13 is connected between the two sets of fixing blocks 12. There are four sets of guide rods 13 arranged in a ring about the center line of the conveying pipe 1. A movable plate 14 is slidably connected to the outside of the guide rod 13. The movable plate 14 can slide along the guide rod 13. Multiple sets of vent holes 15 are opened in the middle of the movable plate 14. Spring 16 and spring 2 17 are respectively connected between the two sides of the movable plate 14 and the guide rod 13.

[0031] exist Figure 1 and Figure 3 In the middle: When the gas shock wave generated by the combustion of the conveying pipe 1 first pushes the movable plate 14 to move, so that the movable plate 14 slides along the guide rod 13. When the movable plate 14 moves, it will squeeze the spring 16 on the outside of the guide rod 13, and at the same time, it will put the spring 17 on the other side of the movable plate 14 into a stretched state. With the cooperation of the spring 16 and the spring 17, the movable plate 14 will play a buffering role, thereby reducing the airflow impact force inside the conveying pipe 1 and avoiding damage to the above-mentioned sealing flame arrestor mechanism.

Claims

1. A detonation-resistant flame arrester, comprising: A gas conveying pipeline (1) is characterized in that a fixing frame (2) is installed on the inner wall of the conveying pipeline (1), and a support frame (3) is installed on one side of the fixing frame (2). A metal block (4) is placed in the hollow area inside the support frame (3), and the metal block (4) can be changed by thermal expansion and contraction. A rubber sealing block (5) is provided between the two sets of metal blocks (4), and an arc-shaped rubber block (6) for sealing is provided between the edge of the metal block (4) and the inner wall of the conveying pipe (1); A mounting bracket (7) for guiding and fixing a metal block (4) is installed on one side of the support frame (3). Through holes (8) are opened around the mounting bracket (7). A fixing column (9) is installed on one side of the support frame (3) through the through hole (8) of the mounting bracket (7). A connecting shaft (10) is connected to one side of the fixing column (9). A rotating block (11) matching the size of the through hole (8) is connected to one side of the connecting shaft (10).

2. The detonation-resistant flame arrester according to claim 1, characterized in that: The mounting bracket (7) and the support bracket (3) are detachable, and the mounting bracket (7) and the support bracket (3) are shaped to match.

3. The explosion-proof flame arrester according to claim 1, characterized in that: The rotating block (11) can be rotated with the fixed column (9) via the connecting shaft (10), and the rotating block (11) is also arranged in a ring array of four groups along the center line of the mounting frame (7).

4. The explosion-proof flame arrester according to claim 1, characterized in that: The inner wall of the conveying pipe (1) is also equipped with a fixing block (12), and a guide rod (13) is connected between the two sets of fixing blocks (12).

5. A detonation-resistant flame arrester according to claim 4, characterized in that: A movable plate (14) is slidably connected to the outside of the guide rod (13), and multiple sets of ventilation holes (15) are opened in the middle of the movable plate (14).

6. A detonation-resistant flame arrester according to claim 5, characterized in that: Spring 1 (16) and spring 2 (17) are respectively connected between the two sides of the movable plate (14) and the guide rod (13).

7. A detonation-resistant flame arrester according to claim 6, characterized in that: The movable plate (14) can slide along the guide rod (13), and the guide rod (13) has four sets of ring arrays about the center line of the conveying pipe (1).

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