Fire-retardant disc structure

Abstract

The utility model relates to the field of fire retardant plates, and particularly discloses a fire retardant plate structure. The top of the flame arrester shell is provided with an external connecting pipe which is fixedly welded, and the two ends of the flame arrester body are provided with a left flame arrester shell and a right flame arrester shell respectively. The chuck is located in the flame arrester shell, the outer side of the chuck is attached to the inner wall of the flame arrester shell, one end of the pull rod is fixedly welded to the side face of the chuck, a threaded pipe A is fixedly welded to the outer side of the partition plate, and the spring is located on one side of the chuck; the temperature in the flame arrester shell rises when the flame arresting disc body arrests fire, kerosene expands when meeting heat to explode the glass tube, the partition plate cannot be limited after the glass tube is exploded, the spring pushes the chuck to slide, and when the chuck slides, the partition plate can be pulled through the pull rod to plug the interior of the flame arrester shell. And the cavity in the flame arrester shell is separated and blocked, so that gas circulation is avoided, and flame spreading is prevented.

Description

Technical Field

[0001] The present application relates to the field of fire-blocking discs, and in particular to a fire-blocking disc structure. Background Art

[0002] Explosion-proof pipeline flame arresters are safety devices used to prevent the spread of flammable gases and liquids and to prevent explosions caused by backfires. Explosion-proof pipeline flame arresters are usually installed on tanks and pipelines that transport or discharge flammable and explosive gases, such as heating and combustion systems, oil gas recovery systems or other flammable gas systems. In the process of using explosion-proof pipeline flame arresters, smoke, organic particles or solvents generated by flame combustion will adhere to the flame arrester core and cause blockage, so explosion-proof pipeline flame arresters need regular cleaning and maintenance.

[0003] The utility model patent with application number 202322305117.8 effectively solves the above problems, but the fire-blocking method in the above patent only blocks the flame through a single fire-blocking disk. The flammable gas helps the fire grow, and there is still a risk of flame spread if the gas is not blocked. Utility Model Content

[0004] In order to solve the problem that flammable gas helps the fire grow and there is still a risk of flame spread if the gas is not blocked, the present application provides a fire barrier disk structure.

[0005] The fire-blocking disc structure provided in this application adopts the following technical solution:

[0006] A fire-blocking disk structure, comprising:

[0007] The flame arrester housing and the flame arrester disc body, the top of the flame arrester housing is provided with an external pipe fixed by welding, the flame arrester disc body is installed inside the flame arrester housing, the two ends of the flame arrester disc body are respectively provided with a left flame arrester disc shell and a right flame arrester disc shell, the left flame arrester disc shell and the right flame arrester disc shell are buckled and wrapped around the outside of the flame arrester disc body for position limiting and fixing, the outside of the left flame arrester disc shell is provided with an external thread, the inside of the right flame arrester disc shell is provided with an internal thread, and the ends of the left flame arrester disc shell and the right flame arrester disc shell are butt-jointed and fixed by threads;

[0008] The side of the left shell of the fire-blocking disk is provided with a secondary fire-blocking assembly, which includes a chuck, a pull rod, a partition, and a spring;

[0009] The chuck is located inside the flame arrester housing, the outer side of the chuck fits with the inner wall of the flame arrester housing, one end of the pull rod is welded and fixed to the side of the chuck, the outer side of the partition has a welded and fixed threaded tube A, the other end of the pull rod has an external thread, one end of the pull rod is embedded in the interior of the threaded tube A and is threadedly connected to the threaded tube A, the partition fits with the inner wall of the flame arrester housing, and the spring is located on one side of the chuck.

[0010] Preferably, the inner side of the flame arrester housing has an integrally fixed limiting ring A, and the two ends of the spring are respectively fitted with the limiting ring A and the chuck;

[0011] By adopting the above technical solution, the spring can push the chuck to slide on the inner wall of the flame arrester housing. When the chuck slides, the partition can be pulled by the pull rod to seal the inside of the flame arrester housing to prevent the flame from spreading.

[0012] Preferably, the flame arrester housing has an integrally fixed limiting ring B inside, and the limiting ring B is in an arc shape;

[0013] By adopting the above technical solution, the limiting ring B is clamped on the outer side of the left shell of the fire arrester disc for limiting, which can effectively prevent the position deviation of the fire arrester disc body.

[0014] Preferably, the side of the partition has a glass tube, and both ends of the glass tube have two metal joints. The glass tube is glued to the metal joints with glue, one of the metal joints is provided with a slide groove, and the other metal joint has an external thread.

[0015] Preferably, the outer side of the partition has an integrally formed sliding strip, the outer side of the left shell of the fire-blocking disk has a welded and fixed threaded tube B, the metal joint at one end of the glass tube is clamped on the outer side of the sliding strip for clamping and limiting, and the metal joint at the other end of the glass tube is embedded in the threaded tube B and threadedly connected with the threaded tube B;

[0016] By adopting the above technical solution, the partition is linked to the left shell of the fire-blocking disk through the two ends of the glass tube, and the position of the partition is limited to the side of the left shell of the fire-blocking disk.

[0017] Preferably, the glass tube is filled with kerosene;

[0018] By adopting the above technical solution, kerosene will expand when heated and explode the glass tube. After the glass tube is exploded, the partition cannot be limited, and the spring pushes the chuck to slide. When the chuck slides, the partition can be pulled by the pull rod to seal the inside of the flame arrester shell to prevent the flame from spreading.

[0019] Preferably, both ends of the flame arrester housing have flanges;

[0020] By adopting the above technical solution, the flame arrester housing can be installed and fixed to the pipeline through the flange.

[0021] Preferably, the top of the external tube is provided with a sealing cover, and the sealing cover is provided with a plurality of threaded rods, and the threaded rods are installed and limited by nuts after passing through the external tube;

[0022] By adopting the above technical solution, the flame arrester housing can be sealed by the sealing cover, which can effectively prevent the flame from spraying out.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. The flame arrester disc body is installed inside the flame arrester housing. When the flame enters the flame arrester housing, it is retardant through the flame arrester disc body. The flame arrester disc body has a corrugated surface to increase the contact area between the flame and the surface of the flame arrester disc body, accelerate heat dissipation, and achieve the purpose of controlling the fire;

[0025] 2. When the fire arrester disc body arrests fire, the temperature inside the flame arrester shell increases. Kerosene expands when it encounters heat and explodes the glass tube. After the glass tube is exploded, the partition cannot be limited. The spring pushes the chuck to slide. When the chuck slides, the partition can be pulled by the pull rod to seal the inside of the flame arrester shell, separate and block the cavity inside the flame arrester shell, prevent gas circulation, and prevent the spread of flame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0027] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0028] Figure 3 It is a partial structure of the utility model showing the explosion intention;

[0029] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure of part A in the middle.

[0030] Reference numerals: 100, flame arrester housing; 101, external pipe; 102, sealing cover; 103, limiting ring A; 104, limiting ring B;

[0031] 200, chuck; 201, pull rod; 202, partition; 203, threaded tube A; 204, slide bar; 205, spring;

[0032] 300, glass tube; 301, slide chute;

[0033] 400, left shell of fire arrester disk; 401, threaded pipe B; 402, main body of fire arrester disk; 403, right shell of fire arrester disk. DETAILED DESCRIPTION

[0034] Embodiment 1, below is combined with the attached Figure 1 —4 Provide further details of this application.

[0035] The embodiment of the present application discloses a fire arrester disk, including a flame arrester housing 100 and a flame arrester disk body 402. The top of the flame arrester housing 100 is fixed to the external pipe 101 by welding. The left shell 400 of the fire arrester disk and the right shell 403 of the fire arrester disk are respectively located at the two ends of the fire arrester disk body 402. The left shell 400 of the fire arrester disk and the right shell 403 of the fire arrester disk are buckled and wrapped around the outer side of the fire arrester disk body 402 for position fixing. The left shell 400 of the fire arrester disk and the right shell 403 of the fire arrester disk are both made of high temperature resistant metal materials. The outer side of the left shell 400 of the fire arrester disk is provided with an external thread. An internal thread is provided on the inner side of the right shell 403 of the fire arrester disk, and the left shell 400 of the fire arrester disk is connected to the end of the right shell 403 of the fire arrester disk and fixed by threaded installation. The inner wall of the flame arrester housing 100 has an integrally fixed limiting ring B104, and the limiting ring B104 is arc-shaped. By adopting the above technical solution, the limiting ring B104 is clamped on the outer side of the left shell 400 of the fire arrester disk for limiting, which can effectively prevent the position displacement of the fire arrester disk body 402. When one end of the flame arrester housing 100 is on fire, the flame is prevented from spreading through the fire arrester disk body 402.

[0036] See also Figure 2-4 The side of the left shell 400 of the fire-blocking disk has a secondary fire-blocking assembly, which includes a chuck 200, a pull rod 201, a partition 202, and a spring 205; the outer side of the chuck 200 is attached to the inner wall of the flame arrester housing 100, one end of the pull rod 201 is fixed to the chuck 200 by welding, the outer side of the partition 202 is fixed to the threaded tube A203 by welding, the other end of the pull rod 201 is provided with an external thread, and one end of the pull rod 201 is embedded in the threaded tube A203 and fixed by threaded installation, The partition 202 is attached to the inner wall of the flame arrester housing 100; the limiting ring A103 is integrally formed with the flame arrester housing 100, and the two ends of the spring 205 are respectively abutted against the limiting ring A103 and the chuck 200, and the spring 205 is limited by the limiting ring A103. The spring 205 can push the chuck 200 to slide on the inner wall of the flame arrester housing 100. When the chuck 200 slides, the partition 202 can be pulled by the pull rod 201 to seal the inside of the flame arrester housing 100 to prevent the flame from spreading.

[0037] See also Figure 2-4The glass tube 300 is located on the side of the partition 202. The two metal joints at both ends of the glass tube 300 are glued together. A slide groove 301 is provided on one of the metal joints. The slide groove 301 is buckled on the outer side of the slide bar 204 for clamping and limiting. The other metal joint has an external thread. The partition 202 and the slide bar 204 are an integrally formed structure. The outer side of the left shell 400 of the fire-blocking disk is welded and fixed to the threaded tube B401. The metal joint at one end of the glass tube 300 is clamped on the outer side of the slide bar 204 for clamping and limiting. The metal joint at the other end of the glass tube 300 is embedded in the interior of the threaded tube B401 and is threadedly connected to the threaded tube B401. The partition 202 is fixed to the partition 204 through the two ends of the glass tube 300. 02 is linked with the left shell 400 of the fire-blocking disk to limit the position of the partition 202 to the side of the left shell 400 of the fire-blocking disk; in order to enable the glass tube 300 to be fried by kerosene according to the set temperature, the wall thickness of the glass tube 300_ cannot be set too thick, and its wall thickness can be set according to the actual temperature requirement. The glass tube 300 is filled with kerosene, which expands when heated and explodes the glass tube 300. After the glass tube 300 is exploded, the partition 202 cannot be limited, and the spring 205 pushes the chuck 200 to slide. When the chuck 200 slides, the partition 202 can be pulled by the pull rod 201 to seal the inside of the flame arrester housing 100 to prevent the flame from spreading.

[0038] See also Figure 1 Flanges are welded and fixed at both ends of the flame arrester housing 100. By adopting the above technical solution, the flame arrester housing 100 can be installed and fixed to the pipeline through the flanges.

[0039] See also Figure 1 The sealing cover 102 is buckled on the outside of the external tube 101, and the sealing cover 102 has a plurality of threaded rods, which pass through the external tube 101 and are installed and limited by nuts. By adopting the above technical solution, the flame arrester housing 100 can be sealed by the sealing cover 102, which can effectively prevent flames from spraying out.

[0040] Working principle:

[0041] The fire arrester disc body 402 is installed inside the flame arrester housing 100. When the flame enters the flame arrester housing 100 from one end close to the flame arrester disc body 402, the flame is retardant through the fire arrester disc body 402. The fire arrester disc body 402 has a corrugated surface to increase the contact area between the flame and the surface of the flame arrester disc body 402, accelerate heat dissipation, and achieve the purpose of controlling the fire. When the fire arrester disc body 402 retards the fire, the temperature inside the flame arrester housing 100 increases, and the kerosene expands when heated and explodes the glass tube 300. After the glass tube 300 is exploded, the partition 202 cannot be limited, and the spring 205 pushes the chuck 200 to slide. When the chuck 200 slides, the partition 202 can be pulled by the pull rod 201 to seal the inside of the flame arrester housing 100 to prevent the flame from spreading.

[0042] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A fire-blocking disk structure, characterized in that: include; A flame arrester housing (100) and a flame arrester disc body (402), wherein the top of the flame arrester housing (100) is provided with an external pipe (101) fixed by welding, the flame arrester disc body (402) is installed inside the flame arrester housing (100), and the two ends of the flame arrester disc body (402) are respectively provided with a left flame arrester disc shell (400) and a right flame arrester disc shell (403), and the left flame arrester disc shell (400) and the right flame arrester disc shell (403) are buckled and wrapped around the outside of the flame arrester disc body (402) to limit and fix; The side surface of the left shell (400) of the fire-blocking disk is provided with a secondary fire-blocking assembly, and the secondary fire-blocking assembly comprises a chuck (200), a pull rod (201), a partition (202), and a spring (205); The chuck (200) is located inside the flame arrester housing (100), one end of the pull rod (201) is welded and fixed to the side of the chuck (200), the outer side of the partition (202) has a welded and fixed threaded tube A (203), the other end of the pull rod (201) has an external thread, one end of the pull rod (201) is embedded in the threaded tube A (203) and is threadedly connected to the threaded tube A (203), and the spring (205) is located on one side of the chuck (200).

2. A fire-blocking disk structure according to claim 1, characterized in that: The inner side of the flame arrester housing (100) is provided with an integrally fixed limiting ring A (103), and the two ends of the spring (205) are respectively fitted with the limiting ring A (103) and the chuck (200).

3. A fire-blocking disk structure according to claim 1, characterized in that: The flame arrester housing (100) has an integrally fixed limiting ring B (104) inside, and the limiting ring B (104) is in an arc shape.

4. A fire-blocking disk structure according to claim 1, characterized in that: The side of the partition (202) is provided with a glass tube (300), and two ends of the glass tube (300) are provided with two metal joints. The glass tube (300) is glued to the metal joints, one of the metal joints is provided with a slide groove (301), and the other metal joint is provided with an external thread.

5. A fire-blocking disk structure according to claim 1, characterized in that: The outer side of the partition (202) is provided with an integrally formed sliding strip (204), the outer side of the left shell (400) of the fire-blocking disk is provided with a welded and fixed threaded tube B (401), the metal joint at one end of the glass tube (300) is clamped on the outer side of the sliding strip (204) for clamping and limiting, and the metal joint at the other end of the glass tube (300) is embedded in the interior of the threaded tube B (401) and is threadedly connected to the threaded tube B (401).

6. A fire-blocking disk structure according to claim 4, characterized in that: The glass tube (300) is filled with kerosene.

7. A fire-blocking disk structure according to claim 1, characterized in that: Both ends of the flame arrester housing (100) are provided with flanges.

8. A fire-blocking disk structure according to claim 1, characterized in that: The top of the external tube (101) is provided with a sealing cover (102), and the sealing cover (102) is provided with a plurality of threaded rods, and the threaded rods are installed and limited by nuts after passing through the external tube (101).

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