CN211751996U

CN211751996U - Anti-detonation type pipeline flame arrester

Info

Publication number: CN211751996U
Application number: CN201922344891.3U
Authority: CN
Inventors: 王聪
Original assignee: Jiangsu Bangci Petrochemical Equipment Manufacturing Co ltd
Current assignee: Jiangsu Bangci Petrochemical Equipment Manufacturing Co ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-10-27
Anticipated expiration: 2029-12-24

Abstract

The utility model relates to a spark arrester technical field just discloses a hinder and explode type pipeline spark arrester, including left valve body. This explosion-proof type pipeline spark arrester, setting through the back-fire relief core, its inside expanded graphite is porous structure under the normality, can freely pass in and out for the gas, and the inflation takes place under high temperature, the volume increase, make the through-hole on surface plugged up, the spark has been prevented from spreading, play the back-fire relief effect, and the setting through the metal mesh, cut apart into a plurality of parts with flame, thereby weaken the intensity of a fire, play the effect of further back-fire relief, and through the setting of isolation sheetmetal and expansion sheetmetal, delay when the flame tendril, keep apart sheetmetal and expansion sheetmetal all thermal expansion, because the coefficient of thermal expansion of expansion sheetmetal is greater than the coefficient of thermal expansion of isolation sheetmetal, make the expansion sheetmetal take place deformation and block up the air vent, play final back-fire relief effect, the condition emergence of detonation and deflagration has been prevented, the high mesh of fire-retardant efficiency has been reached.

Description

Anti-detonation type pipeline flame arrester

Technical Field

The utility model relates to a spark arrester technical field specifically is a type pipeline spark arrester of hindering detonation.

Background

The flame arrester is a safety device for preventing the spread of flame of flammable gas and flammable liquid vapor, is generally installed in a pipeline for conveying flammable gas or on a ventilated tank, and is a device for preventing the flame from spreading.

Flame arrester in the existing market is various, but the ubiquitous defect that the back-fire relief is inefficient that all have, and current flame arrester is structural comparatively simple at the back-fire relief, and the back is being dismantled in the installation many times to the flame arrester, the problem that the seal descends appears easily, also does not have comparatively stable mounting structure in the installation, appears not hard up easily, the back-fire relief inefficiency that leads to the flame arrester, phenomenons such as detonation deflagration appear easily, so propose one kind and hinder detonation type pipeline flame arrester and solve the above-mentioned problem that proposes.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a to prior art not enough, the utility model provides a hinder detonation type pipeline spark arrester possesses advantages such as fire-retardant efficiency height, has solved current spark arrester and has comparatively simple in that the back is structural at the back-fire relief, and the spark arrester is in through the installation dismantlement back many times, appears the problem that the seal descends easily, also does not have comparatively stable mounting structure in the installation, appears becoming flexible easily, leads to the back-fire relief inefficiency of spark arrester, appears the problem of phenomenons such as detonation deflagration easily.

(II) technical scheme

In order to realize the high purpose of the flame retardant efficiency, the utility model provides a following technical scheme: an anti-detonation type pipeline flame arrester comprises a left valve body, wherein a left fixing flange is fixedly arranged on the right side of the left valve body, a right fixing flange is movably arranged on the right side of the left fixing flange, a right valve body is fixedly arranged on the right side of the right fixing flange, a connecting flange is fixedly arranged on one side of the left valve body, which is opposite to the right valve body, respectively, an annular bump is fixedly arranged on the right side of the left fixing flange, an annular groove is formed in the left side of the right fixing flange, mounting holes are formed in the right sides of the left fixing flange and the right fixing flange respectively, fixing bolts are in threaded connection with the inside of the mounting holes, a sealing gasket is fixedly arranged on the outer side of each fixing bolt, a sealing groove is formed in the opposite side of the left fixing flange and the right fixing flange respectively, a rubber sealing ring is movably arranged in the sealing groove, and a flame, the equal fixed mounting in inside of left side valve body and right valve body has the metal mesh, the inside fixed mounting of left side valve body has the isolation sheetmetal, the air vent has been seted up on the right side of isolation sheetmetal, the right side fixed mounting who keeps apart the sheetmetal has the expansion sheetmetal, the equal fixed mounting in top of left side valve body and right valve body has rings.

Preferably, the left fixing flange and the right fixing flange are equal in size and shape, and the annular convex block is located inside the annular groove.

Preferably, the number of the mounting holes is ten, and the ten mounting holes are uniformly distributed on the right sides of the left fixing flange and the right fixing flange.

Preferably, the fire retardant core is expanded graphite, the metal mesh is formed by stacking a plurality of layers of copper meshes, and the mesh number of the copper meshes is one hundred.

Preferably, the diameter of the rubber sealing ring is larger than the sum of the widths of the two sealing grooves, and the size of the annular convex block is matched with that of the annular groove.

Preferably, the number of the vent holes is ten, and the thermal expansion coefficient of the isolation metal sheet is smaller than that of the expansion metal sheet.

(III) advantageous effects

Compared with the prior art, the utility model provides a hinder and explode type pipeline spark arrester possesses following beneficial effect:

1. the explosion-resistant pipeline flame arrester is characterized in that through the arrangement of the flame-retardant core, the expanded graphite inside the flame-retardant core is of a porous structure in a normal state, can be freely fed in and out, expands at high temperature, has increased volume, and prevents sparks from spreading, plays a role in fire resistance, through the arrangement of the metal net, when flame passes through, the flame is divided into a plurality of parts, so that the fire behavior is weakened, the further fire resistance effect is achieved, through the arrangement of the isolation metal sheet and the expansion metal sheet, gas can pass through the vent hole on the right side of the isolation metal sheet in a normal condition, when a flame climbs, the isolation metal sheet and the expansion metal sheet are both heated and expanded, and because the thermal expansion coefficient of the expansion metal sheet is larger than that of the isolation metal sheet, the expansion metal sheet deforms to block the vent hole, and plays a final fire resistance role, the explosion and deflagration conditions are prevented, and the purpose of high flame-retardant efficiency is achieved.

2. This hinder and explode type pipeline spark arrester, installation through left mounting flange and right mounting flange, with left valve body and right valve body fixed connection together, it is whole to form the spark arrester, and setting through mounting flange, let the spark arrester be connected with the pipeline, during the installation, peg graft annular lug on the left mounting flange and the ring channel on the right mounting flange together, then run through the mounting hole with fixing bolt and install, along with fixing bolt's tightening, the rubber seal ring in two seal grooves also receives extrusion deformation, make whole seal groove filled up, good sealing effect has been played, and setting through seal gasket, seal up the mounting hole, make the sealed effect of whole spark arrester better, prevented that inside mars from stretching out, the high mesh of fire-retardant efficiency has been reached.

Drawings

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

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

fig. 3 is the utility model discloses left mounting flange and right mounting flange mounting structure sketch map.

In the figure: 1 left valve body, 2 left mounting flanges, 3 right mounting flanges, 4 right valve body, 5 connecting flanges, 6 annular bumps, 7 annular grooves, 8 mounting holes, 9 fixing bolts, 10 sealing gaskets, 11 sealing grooves, 12 rubber sealing rings, 13 fire retardant cores, 14 metal nets, 15 isolation metal sheets, 16 vent holes, 17 expansion metal sheets and 18 hoisting rings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, an anti-detonation type pipeline flame arrester comprises a left valve body 1, a left fixing flange 2 is fixedly installed on the right side of the left valve body 1, a right fixing flange 3 is movably installed on the right side of the left fixing flange 2, a right valve body 4 is fixedly installed on the right side of the right fixing flange 3, a connecting flange 5 is fixedly installed on the opposite side of the left valve body 1 and the right valve body 4, an annular convex block 6 is fixedly installed on the right side of the left fixing flange 2, an annular groove 7 is formed in the left side of the right fixing flange 3, the left fixing flange 2 and the right fixing flange 3 are equal in size and shape, the annular convex block 6 is located inside the annular groove 7, mounting holes 8 are formed in the right sides of the left fixing flange 2 and the right fixing flange 3, the number of the mounting holes 8 is ten, the mounting holes 8 are uniformly distributed on the right sides of the left fixing flange 2 and the right fixing flange 3, and fixing, a sealing gasket 10 is fixedly arranged on the outer side of the fixing bolt 9, a sealing groove 11 is formed in one side, opposite to the left fixing flange 2 and the right fixing flange 3, of the left fixing flange 2, a rubber sealing ring 12 is movably arranged in the sealing groove 11, the left valve body 1 and the right valve body 4 are fixedly connected together through the installation of the left fixing flange 2 and the right fixing flange 3 to form a whole flame arrester, the flame arrester is connected with a pipeline through the arrangement of the connecting flange 5, during installation, the annular convex block 6 on the left fixing flange 2 and the annular groove 7 on the right fixing flange 3 are spliced together, then the fixing bolt 9 penetrates through the installation hole 8 for installation, along with the tightening of the fixing bolt 9, the rubber sealing rings 12 in the two sealing grooves 11 are also subjected to extrusion deformation, so that the whole sealing groove 11 is filled up, a good sealing effect is achieved, and the sealing gasket 10 is arranged, the diameter of a rubber sealing ring 12 is larger than the sum of the widths of two sealing grooves 11, an annular convex block 6 is matched with the size of an annular groove 7, fire retardant cores 13 are fixedly arranged inside a left valve body 1 and a right valve body 4, metal nets 14 are fixedly arranged inside the left valve body 1 and the right valve body 4, the fire retardant cores 13 are expanded graphite, the expanded graphite is a loose and porous worm-shaped substance obtained by intercalating, washing, drying and high-temperature expanding natural graphite flakes, the metal nets 14 are formed by stacking a plurality of layers of copper nets, the copper nets have high heat resistance and are not easy to deform at high temperature, the mesh number of the copper nets is one hundred, an isolating metal sheet 15 is fixedly arranged inside the left valve body 1, and the right side of the isolating metal sheet 15 is provided with an air vent 16, the right side of the isolation metal sheet 15 is fixedly provided with an expansion metal sheet 17, the number of the vent holes 16 is ten, the thermal expansion coefficient of the isolation metal sheet 15 is smaller than that of the expansion metal sheet 17, the expansion graphite in the isolation metal sheet 15 is of a porous structure under normal conditions through the arrangement of the fire retardant core 13, gas can freely enter and exit, the expansion can be carried out at high temperature, the volume is increased, the through hole on the surface is blocked, the spread of sparks is prevented, the fire retardant effect is achieved, when flame passes through the metal net 14, the flame is divided into a plurality of parts, the fire is weakened, the further fire retardant effect is achieved, through the arrangement of the isolation metal sheet 15 and the expansion metal sheet 17, the gas can normally pass through the vent holes 16 on the right side of the isolation metal sheet 15, when flame tendrils, the isolation metal sheet 15 and the expansion metal sheet 17 are heated and expanded, because the coefficient of thermal expansion of expansion sheetmetal 17 is greater than the coefficient of thermal expansion of isolation sheetmetal 15 for expansion sheetmetal 17 takes place to deform and blocks up air vent 16, plays final back-fire relief effect, has prevented that the condition of detonation and deflagration from taking place, has reached fire-retardant efficient purpose, and the equal fixed mounting in top of left valve body 1 and right valve body 4 has rings 18.

When using, the porous structure of back-fire relief core 13 supplies the gas free business turn over, takes place the inflation under high temperature, and the volume increase for the through-hole on surface is stopped up and is played the back-fire relief effect, and a plurality of slight flames are cut apart into with flame to metal mesh 14, have weakened the intensity of a fire, and inflation sheetmetal 17 takes place the inflation and deformation when being heated, and air vent 16 blocks up and dies to play final back-fire relief effect, and the effectual condition that has prevented detonation and deflagration takes place.

In summary, the explosion-proof pipeline flame arrester has the advantages that through the arrangement of the flame-retardant core 13, the expanded graphite in the flame-retardant core is of a porous structure in a normal state, so that the flame can freely enter and exit, the flame can expand at high temperature, the volume is increased, the through hole on the surface is blocked, the spread of sparks is prevented, the flame-retardant effect is achieved, through the arrangement of the metal net 14, when the flame passes through, the flame is divided into a plurality of parts, so that the fire behavior is weakened, the flame-retardant effect is achieved, through the arrangement of the isolating metal sheet 15 and the expanding metal sheet 17, the gas can pass through the vent hole 16 on the right side of the isolating metal sheet 15 in a normal condition, when the flame delays, the isolating metal sheet 15 and the expanding metal sheet 17 are both heated and expanded, because the thermal expansion coefficient of the expanding metal sheet 17 is larger than that of the isolating metal sheet 15, the expanding metal sheet 17 deforms to block the vent hole 16, plays a final role in fire retardation, prevents the occurrence of detonation and deflagration, and achieves the aim of high flame-retardant efficiency.

Moreover, the left valve body 1 and the right valve body 4 are fixedly connected together through the installation of the left fixing flange 2 and the right fixing flange 3 to form a flame arrester whole body, the flame arrester is connected with a pipeline through the arrangement of the connecting flange 5, when in installation, the annular convex block 6 on the left fixing flange 2 and the annular groove 7 on the right fixing flange 3 are inserted together, then the installation hole 8 is penetrated through by the fixing bolt 9 for installation, along with the tightening of the fixing bolt 9, the rubber sealing rings 12 in the two sealing grooves 11 are also extruded and deformed, so that the whole sealing groove 11 is filled up to play a good sealing role, the installation hole 8 is sealed through the arrangement of the sealing gasket 10, the sealing effect of the whole flame arrester is better, the spreading of internal sparks is prevented, the aim of high flame-retardant efficiency is achieved, and the problem that the existing flame arrester is simpler in flame-retardant structure is solved, and the flame arrester is after the dismantlement of installation many times, the problem that the leakproofness descends appears easily, also does not have comparatively stable mounting structure in the installation, appears becoming flexible easily, leads to the back-fire relief inefficiency of flame arrester, the problem of phenomena such as detonation deflagration appear easily.

It is to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hinder and explode formula pipeline spark arrester, includes left valve body (1), its characterized in that: the right side of the left valve body (1) is fixedly provided with a left fixed flange (2), the right side of the left fixed flange (2) is movably provided with a right fixed flange (3), the right side of the right fixed flange (3) is fixedly provided with a right valve body (4), one side of the left valve body (1) opposite to the right valve body (4) is fixedly provided with a connecting flange (5), the right side of the left fixed flange (2) is fixedly provided with an annular lug (6), the left side of the right fixed flange (3) is provided with an annular groove (7), the right sides of the left fixed flange (2) and the right fixed flange (3) are both provided with mounting holes (8), the inner threads of the mounting holes (8) are connected with fixed bolts (9), the outer side of the fixed bolts (9) is fixedly provided with a sealing gasket (10), and one side of the left fixed flange (2) opposite to the right fixed flange (3) is provided with a sealing groove, the inside movable mounting of seal groove (11) has rubber seal ring (12), the equal fixed mounting in inside of left side valve body (1) and right valve body (4) has back-fire relief core (13), the equal fixed mounting in inside of left side valve body (1) and right valve body (4) has metal mesh (14), the inside fixed mounting of left side valve body (1) has isolation sheetmetal (15), air vent (16) have been seted up on the right side of isolation sheetmetal (15), the right side fixed mounting of isolation sheetmetal (15) has expansion sheetmetal (17), the equal fixed mounting in top of left side valve body (1) and right valve body (4) has rings (18).

2. The detonation-resistant conduit flame arrestor of claim 1, wherein: the left fixing flange (2) and the right fixing flange (3) are equal in size and shape, and the annular convex block (6) is located inside the annular groove (7).

3. The detonation-resistant conduit flame arrestor of claim 1, wherein: the number of the mounting holes (8) is ten, and the ten mounting holes (8) are uniformly distributed on the right sides of the left fixing flange (2) and the right fixing flange (3).

4. The detonation-resistant conduit flame arrestor of claim 1, wherein: the fire retardant core (13) is expanded graphite, the metal mesh (14) is formed by stacking a plurality of layers of copper meshes, and the mesh number of the copper meshes is one hundred.

5. The detonation-resistant conduit flame arrestor of claim 1, wherein: the diameter of the rubber sealing ring (12) is larger than the sum of the widths of the two sealing grooves (11), and the size of the annular convex block (6) is matched with that of the annular groove (7).

6. The detonation-resistant conduit flame arrestor of claim 1, wherein: the number of the vent holes (16) is ten, and the thermal expansion coefficient of the isolation metal sheet (15) is smaller than that of the expansion metal sheet (17).