Anti-crystallization pipeline detonation-resistant flame arrester

Abstract

The anti-crystallization pipeline detonation-resistant flame arrester comprises a left valve body, a fixing flange and a right valve body, a containing cavity is formed in the left end face of the right valve body, threads are formed in the inner wall of the right valve body, an installation pipe is connected into the right valve body in a screwed mode, a baffle ring is formed at the left end of the installation pipe and can be clamped into the containing cavity, and the left end of the installation pipe is connected with the fixing flange. A clamping groove is formed in the left side end face of the baffle ring, a fireproof cover is arranged on the left side of the mounting pipe, a clamping block corresponding to the clamping groove in position is formed on the right side face of the fireproof cover, a transverse connecting screw rod is arranged on the fireproof cover in a penetrating mode, the right end of the connecting screw rod is screwed with the bottom wall of the right side of the mounting pipe, and the clamping block is inserted into the clamping groove. A plurality of through holes are formed in the fireproof cover body, a combined structure convenient to disassemble is integrally formed, and subsequent replacement and cleaning of a certain assembly are facilitated.

Description

Technical Field

[0001] The utility model relates to the field of anti-crystallization pipeline detonation arrester, in particular to an anti-crystallization pipeline detonation arrester. Background Art

[0002] Flame arresters are devices installed in pipelines conveying flammable gases or on ventilated tanks to prevent the spread of flames. They have the function of improving the safety of use and are widely used in the fields of petrochemicals, natural gas processing, and chemical industries to provide safety protection measures against explosions and fires.

[0003] For example, a detonation-proof pipeline flame arrester disclosed in the utility model with authorization announcement number CN211751996U includes a left valve body. The detonation-proof pipeline flame arrester has a flame arrester core, and the expanded graphite inside it is a porous structure under normal conditions, which allows gas to freely enter and exit. However, it expands at high temperatures and increases in volume, so that the through holes on the surface are blocked, preventing sparks from spreading and playing a fire-proofing role. The metal mesh is arranged to divide the flame into multiple parts, thereby weakening the fire and playing a further fire-proofing role. Through the arrangement of the isolation metal sheet and the expansion metal sheet, when the flame spreads, the isolation metal sheet and the expansion metal sheet are both expanded by heat. Since the thermal expansion coefficient of the expansion metal sheet is greater than that of the isolation metal sheet, the expansion metal sheet is deformed to block the vents, playing a final fire-proofing role, preventing detonation and deflagration, and achieving the purpose of high flame-retardant efficiency. In the device, the metal mesh and the flame arrester core are fixedly installed inside the left valve body and the right valve body, and the isolation metal sheet is fixedly installed inside the left valve body. The above components are fixedly installed, which is not convenient for subsequent device disassembly, replacement, and cleaning. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, the utility model provides an anti-crystallization pipeline detonation arrester, by designing an installation tube that can be screwed with the inner wall of the right valve body, a connecting screw that passes through the fireproof cover and is screwed with the right bottom wall of the installation tube, and a fire barrier layer that is inside the installation tube and penetrated by the connecting screw, so that the device as a whole forms a combined structure that is easy to disassemble, which is convenient for subsequent replacement and cleaning of a component.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: an anti-crystallization pipeline detonation arrester, comprising a left valve body, a fixed flange and a right valve body, the left end face of the right valve body is provided with an accommodating cavity, the inner wall of the right valve body is provided with a thread, a mounting tube is screwed into the inside of the right valve body, a retaining ring is formed at the left end of the mounting tube, the retaining ring can be inserted into the accommodating cavity, a retaining groove is provided on the left end face of the retaining ring, a fireproof cover is provided on the left side of the mounting tube, a retaining block corresponding to the position of the retaining groove is formed on the right side face of the fireproof cover, a transverse connecting screw is passed through the fireproof cover, the right end of the connecting screw is screwed with the right bottom wall of the mounting tube, the retaining block is inserted into the retaining groove, and a plurality of through holes are provided on the fireproof cover body.

[0006] As a preferred technical solution of the utility model, a plurality of fire barrier layers are arranged inside the installation tube, and the fire barrier layers are penetrated by connecting screws.

[0007] As a preferred technical solution of the utility model, a top ring is fixedly sleeved on the connecting screw rod body, and the top ring squeezes the fire barrier layer to fix it.

[0008] As a preferred technical solution of the utility model, a sealing gasket is arranged on the right side of the retaining ring, and the sealing gasket is sleeved on the mounting tube.

[0009] As a preferred technical solution of the utility model, the right end of the left valve body and the left end of the right valve body are both welded with fixing flanges, and the fixing flanges are fixed by fixing bolts.

[0010] As a preferred technical solution of the utility model, the left end of the left valve body and the right end of the right valve body are both provided with connecting flanges.

[0011] Compared with the prior art, the utility model can achieve the following beneficial effects:

[0012] By designing an installation tube that can be screwed onto the inner wall of the right valve body, a connecting screw that passes through the fireproof cover and is screwed onto the right bottom wall of the installation tube, and a fire barrier layer that is inside the installation tube and penetrated by the connecting screw, the device as a whole forms a combined structure that is easy to disassemble, making it convenient for subsequent replacement and cleaning of a component. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the main view structure of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the fireproof cover of the utility model;

[0016] Figure 4This is a schematic diagram of the internal structure of the left valve body and the right valve body of the utility model;

[0017] Figure 5 This is a schematic diagram of the installation pipe structure of the utility model;

[0018] Among them: 1. Left valve body; 2. Fixed flange; 3. Connecting flange; 4. Fixed bolt; 5. Right valve body; 6. Thread; 7. Mounting pipe; 8. Retaining ring; 9. Fire barrier layer; 10. Fireproof cover; 11. Through hole; 12. Block; 13. Connecting screw; 14. Slot; 15. Sealing gasket; 16. Accommodating chamber; 17. Top ring. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0020] Example

[0021] Please refer to Figure 1 - Figure 3 As shown, the utility model provides an anti-crystallization pipeline detonation arrester, comprising a left valve body 1, a fixing flange 2 and a right valve body 5. The right end of the left valve body 1 and the left end of the right valve body 5 are both welded with a fixing flange 2. A fixing hole for a fixing bolt 4 to pass through is opened on the fixing flange 2. The fixing flange 2 is connected and fixed by the fixing bolt 4. The fixing bolt 4 includes a screw and a nut, and the two fixing flanges 2 can be fixed. The left end of the left valve body 1 and the right end of the right valve body 5 are both provided with a connecting flange 3. Here, the connecting flange 3 is used to connect with the pipeline. When in use, the fixing bolt 4 is used to dock and fix the two fixing flanges 2, and the connecting flange 3 is connected to the pipeline;

[0022] like Figure 1 - Figure 4As shown, a accommodating cavity 16 is provided on the left end face of the right valve body 5, and the accommodating cavity 16 is circular. The accommodating cavity 16 is not provided on the right side face of the left valve body 1. The left valve body 1 can limit the mounting tube 7 screwed into the mounting tube 7 and the retaining ring 8 hidden in the accommodating cavity 16. After the right end of the left valve body 1 is connected to the right valve body 5, the right side of the left valve body 1 blocks the edge of the retaining ring 8. A thread 6 is provided on the inner wall of the right valve body 5. A mounting tube 7 is screwed into the inside of the right valve body 5. A matching thread 6 is provided on the outer side face of the mounting tube 7. A retaining ring 8 is formed on the left end of the mounting tube 7, and the retaining ring 8 can be stuck in the accommodating cavity 16. A card groove 14 is provided on the left end face of the retaining ring 8. A fireproof cover 10 is provided on the left side of the mounting tube 7. A card block 12 corresponding to the position of the card groove 14 is formed on the right side face of the fireproof cover 10. A transverse The connecting screw 13, the right end of the connecting screw 13 is screwed with the right bottom wall of the mounting tube 7, the connecting screw 13 can fix the fireproof cover 10, so that the position between it and the retaining ring 8 is fixed, the block 12 is inserted into the slot 14, and the fireproof cover 10 is inserted into the slot 14 through the block 12, which is convenient for the subsequent disassembly of the fireproof cover 10, the connecting screw 13 is reversed and can be withdrawn from the right bottom wall of the mounting tube 7, the restriction on the fireproof cover 10 is released, and the fireproof cover 10 can be removed, a plurality of through holes 11 are provided on the cover body of the fireproof cover 10, a plurality of fireproof layers 9 are provided inside the mounting tube 7, and the fireproof layers 9 are penetrated by the connecting screw 13, and a top ring 17 is fixedly sleeved on the rod body of the connecting screw 13, and the top ring 17 squeezes the fireproof layer 9 to fix it, and a sealing gasket 15 is provided on the right side of the retaining ring 8, and the sealing gasket 15 is sleeved on the mounting tube 7;

[0023] When installing the installation tube 7 and other components, first, put the sealing gasket 15 on the installation tube 7 so that it is close to the right side of the retaining ring 8, rotate the installation tube 7 to make it screwed with the right valve body 5, until the installation tube 7 is completely inserted into the right valve body 5, and the retaining ring 8 is hidden in the accommodating cavity 16. At this time, the retaining ring 8 squeezes the sealing gasket 15, and the sealing gasket 15 contacts the left side of the accommodating cavity 16 and the right side of the retaining ring 8. Then, pass the connecting screw 13 through the fireproof cover 10, and then put the fireproof layer 9 on the connecting screw 13, insert the card block 12 on the fireproof cover 10 into the card groove 14, and rotate the connecting screw 13 to screw it with the right bottom wall of the installation tube 7 until the top ring 17 tightly fixes the fireproof layer 9 inside the installation tube 7. At this time, the position of the fireproof cover 10 is fixed;

[0024] Specific working principle:

[0025] When using the device, first, put the sealing gasket 15 on the mounting tube 7 so that it is close to the right side of the retaining ring 8, rotate the mounting tube 7 to screw it with the right valve body 5, until the mounting tube 7 is completely inserted into the right valve body 5, and the retaining ring 8 is hidden in the accommodating cavity 16. At this time, the retaining ring 8 squeezes the sealing gasket 15, and the sealing gasket 15 contacts the left side of the accommodating cavity 16 and the right side of the retaining ring 8. Then, pass the connecting screw 13 through the fireproof cover 10, and then put the fireproof layer 9 on the connecting screw 13, insert the block 12 on the fireproof cover 10 into the card groove 14, and rotate the connecting screw 13 to screw it with the right bottom wall of the mounting tube 7 until the top ring 17 tightly fixes the fireproof layer 9 inside the mounting tube 7. At this time, the position of the fireproof cover 10 is fixed, and then use the fixing bolts 4 to dock and fix the two fixing flanges 2. At this time, the right side of the left valve body 1 faces the edge of the retaining ring 8 to block the connecting flange 3 and connect the pipeline.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. An anti-crystallization pipeline detonation flame arrester, comprising a left valve body (1), a fixing flange (2) and a right valve body (5), characterized in that: The left end face of the right valve body (5) is provided with an accommodating cavity (16), the inner wall of the right valve body (5) is provided with a thread (6), a mounting tube (7) is screwed into the inside of the right valve body (5), a retaining ring (8) is formed at the left end of the mounting tube (7), the retaining ring (8) can be inserted into the accommodating cavity (16), a retaining groove (14) is formed at the left end face of the retaining ring (8), a fireproof cover (10) is arranged on the left side of the mounting tube (7), a retaining block (12) corresponding to the position of the retaining groove (14) is formed on the right side face of the fireproof cover (10), a transverse connecting screw (13) is passed through the fireproof cover (10), the right end of the connecting screw (13) is screwed with the right bottom wall of the mounting tube (7), the retaining block (12) is inserted into the retaining groove (14), and a plurality of through holes (11) are provided on the cover body of the fireproof cover (10).

2. The anti-crystallization pipeline detonation flame arrester according to claim 1, characterized in that: A plurality of fire-blocking layers (9) are arranged inside the installation tube (7), and the fire-blocking layers (9) are penetrated by connecting screws (13).

3. The anti-crystallization pipeline detonation flame arrester according to claim 1, characterized in that: A top ring (17) is fixedly sleeved on the rod body of the connecting screw rod (13), and the top ring (17) squeezes the fire barrier layer (9) to fix it.

4. The anti-crystallization pipeline detonation flame arrester according to claim 1, characterized in that: A sealing gasket (15) is arranged on the right side of the retaining ring (8), and the sealing gasket (15) is sleeved on the mounting tube (7).

5. The anti-crystallization pipeline detonation flame arrester according to claim 1, characterized in that: The right end of the left valve body (1) and the left end of the right valve body (5) are both welded with a fixing flange (2), and the fixing flange (2) is connected and fixed by fixing bolts (4).

6. The anti-crystallization pipeline detonation arrester according to claim 1, characterized in that: The left end of the left valve body (1) and the right end of the right valve body (5) are both provided with connecting flanges (3).

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