CN210228944U

CN210228944U - Corrosion-resistant high temperature-resistant flame arrester

Info

Publication number: CN210228944U
Application number: CN201920875794.4U
Authority: CN
Inventors: Chenmang Wang; 王陈茫
Original assignee: Shanghai Hengpan Fluid Equipment Co ltd
Current assignee: Shanghai Hengpan Fluid Equipment Co ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-04-03
Anticipated expiration: 2029-06-12

Abstract

The utility model discloses a corrosion-resistant high temperature resistance spark arrester belongs to spark arrester technical field. It includes first casing and second casing, through the common fixedly connected with back-fire relief core of supporting splint between first casing and the second casing, and sealed fixed connection between first casing and the second casing, the opening has all been seted up to the one end that first casing and second casing are close to each other, the access & exit has all been seted up to the one end that first casing and second casing were kept away from each other, U type dashpot has all been seted up on first casing and the second casing, the both ends of U type dashpot are linked together with access & exit and opening respectively. The utility model discloses outside the back-fire relief function with traditional spark arrester, after the deflagration accident takes place, the explosion strikes the air current just with the positive contact of back-fire relief core after weakening layer upon layer of cushion chamber, U type dashpot and fireproof cotton to protection back-fire relief core is not damaged by supersonic air impact, avoids the scene of an accident to take place the catenation explosion accident.

Description

Corrosion-resistant high temperature-resistant flame arrester

Technical Field

The utility model relates to a corrosion-resistant high temperature resistance spark arrester belongs to spark arrester technical field.

Background

The structure of traditional spark arrester mainly comprises back-fire relief core and spark arrester shell, installs the end at the pipeline usually, when the detonation accident takes place for the one end of pipeline, because the explosion effect, the gas can take place violent inflation in the pipeline, and these expanded gas can form the air current that the supersonic speed flows, and these air currents can strike back-fire relief core when the spark arrester is passed through for back-fire relief core is punctured or is out of shape the damage, thereby makes the spark arrester lose the back-fire relief function.

Disclosure of Invention

The utility model discloses the technical problem that will solve lies in: the corrosion-resistant high-temperature-resistant flame arrester solves the problem that a flame-retardant core in the flame arrester fails due to impact of strong airflow.

The utility model discloses the technical problem that will solve takes following technical scheme to realize:

the utility model provides a corrosion-resistant high temperature resistance spark arrester, includes first casing and second casing, through the common fixedly connected with back-fire relief core of supporting splint between first casing and the second casing, just sealed fixed connection between first casing and the second casing, the opening has all been seted up to the one end that first casing and second casing are close to each other, the access & exit has all been seted up to the one end that first casing and second casing kept away from each other, U type dashpot has all been seted up on first casing and the second casing, the both ends of U type dashpot are linked together with access & exit and opening respectively.

As a preferable example, fireproof cotton for buffering the impact force of the gas is fixedly connected to the inner walls of the two openings.

As a preferable example, sound insulation felts are fixedly connected to the inner walls of the two U-shaped buffer grooves.

As a preferable example, the first shell and the second shell are both internally provided with buffer cavities communicated with the inlet and the outlet.

As a preferable example, the fire retardant core is made of Hastelloy, the supporting clamping plate is made of PTFE, and the inner walls of the first shell and the second shell are coated with anti-corrosion coatings.

As a preferred example, the anti-corrosive coating is one of PTFE, ETFE, ECTFE and PFA materials.

The utility model has the advantages that: the utility model discloses outside the back-fire relief function with traditional spark arrester, after the deflagration accident takes place, the explosion strikes the air current just with the positive contact of back-fire relief core after weakening layer upon layer of cushion chamber, U type dashpot and fireproof cotton to protection back-fire relief core is not damaged by supersonic air impact, avoids the scene of an accident to take place the catenation explosion accident.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a sectional view taken along line a-a of fig. 1.

In the figure: first casing 1, cushion chamber 2, fireproof cotton 3, back-fire relief core 4, support splint 5, second casing 6, access & exit 7, U type buffer slot 8, sound insulation felt 9, opening 10.

Detailed Description

In order to make the technical means, the creation features, the achievement purposes and the functions of the present invention easy to understand and understand, the present invention is further explained by combining the following specific drawings.

As shown in fig. 1-2, a corrosion-resistant and high-temperature-resistant flame arrester, including first casing 1 and second casing 6, through the common fixedly connected with back-fire relief core 4 of supporting splint 5 between first casing 1 and the second casing 6, and sealed fixed connection between first casing 1 and the second casing 6, opening 10 has all been seted up to the one end that first casing 1 and second casing 6 are close to each other, access & exit 7 has all been seted up to the one end that first casing 1 and second casing 6 kept away from each other, U type dashpot 8 has all been seted up on first casing 1 and the second casing 6, the both ends of U type dashpot 8 are linked together with access & exit 7 and opening 10 respectively.

Adopt above-mentioned scheme, use flange joint between first casing 1 and the second casing 6, fire retardant core 4 centre gripping is fixed between two flanges to wholly constitute sealed cavity, thereby be convenient for dismantle fire retardant core 4 and get off and wash or change.

The inner walls of the two openings 10 are fixedly connected with fireproof cotton 3 for buffering the impact force of gas.

By adopting the scheme, the fireproof cotton 3 is selected from low-density products so as to ensure that the normal flowing gas is not influenced or is influenced as less as possible.

The inner walls of the two U-shaped buffer grooves 8 are fixedly connected with sound insulation felts 9.

Adopt above-mentioned scheme, 9 surfaces of the felt that gives sound insulation are rough, can slow down the gas flow speed of process, and the felt 9 that gives sound insulation plays syllable-dividing effect simultaneously, reduces the sound that produces when the air current strikes U type dashpot 8 inner walls effectively.

The first shell 1 and the second shell 6 are both provided with a buffer cavity 2 communicated with the inlet and outlet 7.

By adopting the scheme, when high-speed airflow enters the flame arrester, part of the gas is shunted into the buffer cavity 2 so as to reduce the impact force on the flame-retardant core 4.

Back-fire relief core 4 is the hastelloy material, and supporting splint 5 is the PTFE material, and the inner wall of first casing 1 and second casing 6 all scribbles and is equipped with anticorrosive coating.

By adopting the scheme, the whole flame arrester can also achieve the effects of high temperature resistance and corrosion resistance besides good flame arresting performance.

The anticorrosive coating is one of PTFE, ETFE, ECTFE and PFA materials.

The working principle is as follows: when using, the gas that normal velocity of flow flows can pass through this spark arrester, when the one end detonation of pipeline, the one stock hypervelocity air current of production enters into in the spark arrester along the pipeline, the hypervelocity air current is at first through access & exit 7 back, partly hypervelocity air current enters into cushion chamber 2 and strikes its inner wall, and offset the impact force, another part hypervelocity air current enters into U type dashpot 8, and the striking is at U type dashpot 8's bend department inner wall and offset a part of impact force, simultaneously sound insulation felt 9 slows down the speed of hypervelocity air current, reduce its internal energy, hypervelocity air current is when preventing fire cotton 3 afterwards, can receive strong damping, the impact of the hypervelocity air current has finally been kept apart, the back-fire relief core 4 has been protected effectively not damaged.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and such changes and modifications fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a fire arrestor of corrosion-resistant high temperature resistance, includes first casing (1) and second casing (6), through the common fixedly connected with back-fire relief core (4) of support splint (5) between first casing (1) and second casing (6), just sealed fixed connection, its characterized in that between first casing (1) and second casing (6): opening (10) have all been seted up to the one end that first casing (1) and second casing (6) are close to each other, access & exit (7) have all been seted up to the one end that first casing (1) and second casing (6) kept away from each other, U type dashpot (8) have all been seted up on first casing (1) and second casing (6), the both ends of U type dashpot (8) are linked together with access & exit (7) and opening (10) respectively.

2. A corrosion and temperature resistant flame arrestor as defined in claim 1, wherein: the inner walls of the two openings (10) are fixedly connected with fireproof cotton (3) used for buffering the impact force of gas.

3. A corrosion and temperature resistant flame arrestor as defined in claim 1, wherein: and the inner walls of the two U-shaped buffer grooves (8) are fixedly connected with sound insulation felts (9).

4. A corrosion and temperature resistant flame arrestor as defined in claim 1, wherein: the first shell (1) and the second shell (6) are both provided with buffer cavities (2) communicated with the inlet and outlet (7).

5. A corrosion and temperature resistant flame arrestor as defined in claim 1, wherein: back-fire relief core (4) are the hastelloy material, supporting splint (5) are the PTFE material, the inner wall of first casing (1) and second casing (6) all scribbles and is equipped with anticorrosive coating.

6. A corrosion and temperature resistant flame arrestor as defined in claim 5, wherein: the anticorrosive coating is one of PTFE, ETFE, ECTFE and PFA materials.