CN114558265A

CN114558265A - Steady-state detonation-resistant flame arrester with shock wave absorbing device

Info

Publication number: CN114558265A
Application number: CN202210115267.XA
Authority: CN
Inventors: 龙海涛; 方士豪; 李绍利; 郁勇; 吴翔; 姚相俊; 蒋峰
Original assignee: Jiangsu Fushen Special Valve Co ltd
Current assignee: Jiangsu Fushen Special Valve Co ltd
Priority date: 2022-02-06
Filing date: 2022-02-06
Publication date: 2022-05-31

Abstract

The invention discloses a stable state explosion-proof detonation flame arrester with a shock wave absorption device, which comprises a shell and a flame retardant element, wherein the flame retardant element comprises two groups of wave absorption cores and flame retardant cores, a spherical cavity is formed in each wave absorption core, a shock wave buffering sphere is arranged in each spherical cavity, and each shock wave buffering sphere is of an oval sphere structure. This stable state explosion-proof spark arrester with shock wave absorbing device, utilize flame to pass through the intercommunicating pore and get into spherical intracavity, then collide shock wave buffering spheroid, shock wave buffering spheroid promotes the slip and holds the cap through the spacing piece of supporting that runs through the column connection, the slip holds the cap and carries out elastic buffer, make the shock wave blockked by shock wave buffering spheroid, the arc structure that the shock wave passes through spherical chamber simultaneously turns back, flow to the port department of medium connecting pipe, the impact force of offsetting follow-up detonation wave that can be fine, have good buffering, decompression and back-fire relief effect.

Description

Steady-state detonation-resistant flame arrester with shock wave absorbing device

Technical Field

The invention relates to the technical field of flame arresters, in particular to a stable explosion-proof flame arrester with a shock wave absorption device.

Background

Regarding the working principle of flame arresters, there are two main points: one is based on heat transfer; one of the requirements for combustion is to reach a certain temperature, i.e. the ignition point, based on the wall effect. Below the ignition point, combustion is stopped. According to this principle, the spread of the flame can be prevented as long as the temperature of the burning substance is lowered below its ignition point. The flame will become several tiny flames as it passes through the many tiny passages of the flame retardant element. When the flame retardant element is designed inside the flame arrester, the contact area between the fine flame and the channel wall is enlarged as much as possible, the heat transfer is enhanced, and the temperature of the flame is reduced below the ignition point, thereby preventing the flame from spreading.

Because of the reasons for pipeline arrangement and the uncertainty of the fire source, the combustion in the pipeline can cause detonation shock waves with great harmfulness, the detonation shock waves are transmitted through the pipeline, the speed can at least reach 1600m/s, simultaneously, huge shock wave pressure is generated, and the pressure and the speed of the shock waves can cause sharp damage to the fire retardant component. Therefore, there is a need to solve the above problems by creating a steady-state detonation flame arrestor provided with a shock wave absorbing device.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a stable detonation-resistant flame arrester with a shock wave absorption device, which solves the problems that the combustion in a pipeline can cause detonation shock waves with great harmfulness, and the great shock wave pressure and speed can cause rapid damage to a flame-resistant component.

In order to achieve the purpose, the invention is realized by the following technical scheme: a stable anti-explosion bombing flame arrester with a shock wave absorbing device comprises a shell and a flame retardant element, wherein the flame retardant element comprises two groups of wave absorbing cores and flame retardant cores, a spherical cavity is formed in the wave absorbing cores, a shock wave buffering sphere is arranged in the spherical cavity and is of an elliptical sphere structure, one side of the shock wave buffering sphere is fixedly connected with a through column, a limiting through hole is formed in the center of one side of the wave absorbing cores, one end, far away from the shock wave buffering sphere, of the through column penetrates through the limiting through hole and is fixedly connected with a limiting pressing block, a buffer groove is formed in the center of the surface of the flame retardant core, a sliding bearing cap is connected into the buffer groove through a buffer spring, the limiting pressing block penetrates through the buffer groove and is in compression joint with the sliding bearing cap, two groups of intercommunicating holes are formed in the other sides of the wave absorbing cores, fire retardant holes are formed in the surface peripheries of one sides of the wave absorbing cores and the flame retardant cores, inhale the spacing cardboard of two sets of arcs of one side fixedly connected with of ripples core, the spacing draw-in groove of arc has all been seted up on the surface of back-fire relief core both sides, and the spacing cardboard of arc and the spacing draw-in groove joint of arc, inhale the back-fire relief hole of back-fire relief core department and the back-fire relief hole position of back-fire relief core department and correspond and communicate, the casing includes two sets of connecting shells and back-fire relief core shell, and is two sets of one side of connecting shell all communicates there is the medium connecting pipe, and the medium connecting pipe is located the inside one end of connecting shell and runs through in intercommunicating pore department.

Preferably, the other sides of the two groups of connecting shells are respectively arranged at the left side and the right side of the fire retardant core shell, and a sealing gasket is arranged between the connecting shells and the fire retardant core shell.

Preferably, the fire retardant core shell is connected with the connecting shell through a connecting component, the connecting component comprises two groups of fixing rings, two groups of sleeves and a positive and negative screw adjusting screw part, and the two groups of fixing rings are respectively fixedly connected with the left end and the right end of the fire retardant core shell.

Preferably, it is two sets of the sleeve is established respectively in the outside of two sets of connection shells, and sleeve and connection shell swing joint, the both ends in the connection shell outside all are equipped with the spacing ring, telescopic inside cover is equipped with fastening spring, and fastening spring overlaps and establishes in the outside of connecting the shell.

Preferably, a tightening pull rod penetrates through the outer side of the fixing ring, a pull head is fixedly connected to one end of the tightening pull rod, a clamping plate is fixedly connected to the other side of the sleeve, multiple groups of clamping penetrating notches are formed in the outer side of the surface of the clamping plate, and clamping positioning grooves are formed in one side of each clamping penetrating notch.

Preferably, the notch department that the notch was run through in the joint reduces gradually, and the pull head runs through in the joint run through notch department and with joint constant head tank department joint, telescopic one side fixedly connected with rotates prismatic.

Preferably, screw sockets are formed at two ends of the positive and negative wire adjusting screw pieces, and threads are formed on the surfaces of the other ends of the tightening rods connected with the fixing rings.

Preferably, the screw thread symmetry setting on the tight pull rod of two sets of solid fixed ring departments, the screw thread department screwed connection of screw and tight pull rod is passed through at the both ends that positive and negative silk was adjusted the spiral piece.

Advantageous effects

The invention provides a steady-state explosion-resistant flame arrester provided with a shock wave absorption device. Compared with the prior art, the method has the following beneficial effects:

(1) this stable state explosion-proof flame arrester with shock wave absorbing device, utilize flame to pass through the intercommunicating pore and get into spherical intracavity, then collide shock wave buffering spheroid, shock wave buffering spheroid promotes the slip and holds the cap through the spacing piece of supporting that runs through the post connection, the slip holds the cap and carries out elastic buffer, make the shock wave block the spheroid by shock wave, the arc structure that the shock wave passes through spherical chamber simultaneously turns back, flow to the port department of medium connecting pipe, the impact force of offsetting follow-up detonation wave that can be fine, has good buffering, decompression and back-fire relief effect.

(2) According to the stable detonation-resistant flame arrester with the shock wave absorption device, the pull head penetrates through the clamping groove opening by pushing the sleeve, the sleeve is rotated by rotating the prism, the pull head is clamped at the clamping groove opening, and the screw is spirally connected with the upper part of the tightening pull rod by rotating the forward and reverse screw adjusting screw piece, so that the two sets of tightening pull rods are retracted to the middle part.

(3) This stable state that is equipped with shock wave absorbing device hinders detonation spark arrester, shock wave collide and inhale ripples core and back-fire relief core for back-fire relief component collides the casing, and the casing cushions through the fastening spring of connecting elements department again, further offsets the impact force of follow-up detonation wave, has good buffering decompression effect, has solved the spark arrester and has influenced and impaired problem by the shock wave.

Drawings

FIG. 1 is a sectional view of the structure of the housing of the present invention;

FIG. 2 is a cross-sectional view of a fire barrier element of the present invention;

FIG. 3 is a left side view of the structure of the wave-absorbing core of the present invention;

FIG. 4 is a right side elevational view of a construction of a firestop core of the present invention;

FIG. 5 is a cross-sectional view of the structure of the present invention;

FIG. 6 is a right side view of the structure of the card of the present invention.

In the figure: 1. a housing; 11. a connecting shell; 111. a limiting ring; 12. a fire retardant core shell; 13. a medium connection pipe; 14. a sealing gasket; 2. a fire retardant element; 21. a wave-absorbing core; 211. a spherical cavity; 212. a shock wave buffering sphere; 213. penetrating the column; 214. limiting the through hole; 215. a limiting and pressing block; 216. a communicating hole; 217. an arc-shaped limiting clamping plate; 22. a fire retardant core; 221. a buffer tank; 222. a buffer spring; 223. a sliding bearing cap; 224. an arc-shaped limiting clamping groove; 23. a flame-retarding hole; 3. a connecting member; 31. a fixing ring; 32. a sleeve; 321. a fastening spring; 322. clamping a plate; 3221. clamping the through notch; 3222. clamping the positioning groove; 323. rotating the prism; 33. a positive and negative wire adjusting screw; 331. screwing; 34. tightening the pull rod; 341. a slider; 342. and (4) threading.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a stable detonation-resistant flame arrester with a shock wave absorbing device comprises a shell 1 and a flame retardant element 2, wherein the flame retardant element 2 comprises two groups of wave absorbing cores 21 and flame retardant cores 22, a spherical cavity 211 is formed in the wave absorbing core 21, a shock wave buffering sphere 212 is arranged in the spherical cavity 211, the shock wave buffering sphere 212 is of an oval sphere structure, one side of the shock wave buffering sphere 212 is fixedly connected with a through column 213, a limiting through hole 214 is formed in the center of one side of the wave absorbing core 21, one end of the through column 213, which is far away from the shock wave buffering sphere 212, penetrates through the limiting through hole 214 and is fixedly connected with a limiting pressing block 215, a buffer groove 221 is formed in the center of the surface of the flame retardant core 22, the inside of the buffer groove 221 is connected with a sliding bearing cap 223 through a wave absorbing buffer spring 222, the limiting pressing block 215 penetrates through the buffer groove 221 and is in compression joint with the sliding bearing cap 223, communication holes 216 are formed in the other sides of the two groups of the wave absorbing cores 21, the wave absorbing core comprises a wave absorbing core 21 and a fire retardant core 22, wherein fire blocking holes 23 are respectively formed in the periphery of one side of the wave absorbing core 21 and the periphery of the surface of the fire retardant core 22, two groups of arc-shaped limiting clamping plates 217 are fixedly connected to one side of the wave absorbing core 21, arc-shaped limiting clamping grooves 224 are respectively formed in the surfaces of two sides of the fire retardant core 22, the arc-shaped limiting clamping plates 217 are clamped with the arc-shaped limiting clamping grooves 224, the fire retardant holes 23 at the wave absorbing core 21 and the fire blocking holes 23 at the fire retardant core 22 correspond to and are communicated with each other, a shell 1 comprises two groups of connecting shells 11 and fire retardant core shells 12, the fire retardant core shells 12 are connected with the connecting shells 11 through connecting members 3, each connecting member 3 comprises two groups of fixing rings 31, two groups of sleeves 32 and positive and negative wire adjusting screws 33, the two groups of fixing rings 31 are respectively and fixedly connected with the left and right ends of the fire retardant core shells 12, the two groups of sleeves 32 are respectively sleeved outside the two groups of connecting shells 11, the sleeves 32 are movably connected with the connecting shells 11, two ends outside the connecting shells are respectively provided with limiting rings 111, the fastening spring 321 is sleeved inside the sleeve 32, the fastening spring 321 is sleeved outside the connecting shell 11, the shock wave collides with the wave absorbing core 21 and the fire retardant core 22, so that the fire retardant element 2 collides with the shell 1, the shell 1 is buffered by the fastening spring 321 at the connecting component 3, the impact force of subsequent detonation waves is further counteracted, a good buffering and pressure reducing effect is achieved, and the problem that the fire retardant device is damaged due to the impact wave is solved, the fastening rod 34 penetrates through the outer side of the fixing ring 31, one end of the fastening rod 34 is fixedly connected with the pull head 341, the other side of the sleeve 32 is fixedly connected with the clamping plate 322, a plurality of groups of clamping through notches 3221 are formed in the outer side of the surface of the clamping plate 322, the clamping through notch 3222 is formed in one side of the clamping through notch 3221, the groove of the clamping through notch 3221 is gradually reduced, and the pull head 341 penetrates through the clamping through notch 3221 and is clamped with the clamping through notch 3222, one side of the sleeve 32 is fixedly connected with a rotating prism 323, both ends of the positive and negative wire adjusting screw 33 are respectively provided with a screw 331, the surface of the other end of the tightening rod 34 connected with the two groups of fixing rings 31 is respectively provided with a screw 342, the screws 342 on the tightening rod 34 at the two groups of fixing rings 31 are symmetrically arranged, both ends of the positive and negative wire adjusting screw 33 are spirally connected with the screw 342 of the tightening rod 34 through the screw 331, the pull head 341 passes through the clamping and penetrating notch 3221 by pushing the sleeve 32, the sleeve 32 is rotated through the rotating prism 323 to clamp the pull head 341 at the clamping and positioning groove 3222, the screw 331 is spirally connected with the screw 342 at the upper part of the tightening rod 34 by rotating the positive and negative wire adjusting screw 33, so that the two groups of tightening rods 34 are drawn towards the middle part, the device provided by the invention has simple structure, convenient disassembly and use, and subsequent maintenance and assembly replacement, one side of the two groups of connecting shells 11 is communicated with a medium connecting pipe 13, and the medium connecting pipe 13 is located and connects the inside one end of shell 11 to run through in the intercommunicating pore 216 department, the opposite side of two sets of connecting shells 11 locates the left and right sides of the back-fire relief core shell 12 respectively, and be equipped with seal ring 14 between connecting shell 11 and the back-fire relief core shell 12, utilize flame to get into spherical cavity 211 through intercommunicating pore 216, then collide shock wave buffering spheroid 212, shock wave buffering spheroid 212 pushes the sliding bearing cap 223 through the spacing briquetting 215 that runs through the post 213 connection, the sliding bearing cap 223 carries out the elastic buffering, make the shock wave blockked by shock wave buffering spheroid 212, the arc structure that the shock wave passes through spherical cavity 211 is turned back simultaneously, flow to the port department of medium connecting pipe 13, the impact force of following detonation wave can be well offset, have good buffering, decompression and back-fire relief effect.

And those not described in detail in this specification are well within the skill of the art.

When the wave absorbing core is installed, two groups of wave absorbing cores 21 are respectively arranged inside two groups of connecting shells 11, the position of a communicating hole 216 is sleeved at the port of a medium connecting pipe 13, an arc-shaped limiting clamping plate 217 is clamped with an arc-shaped limiting clamping groove 224, so that a fire blocking hole 23 on the wave absorbing core 21 corresponds to that on a fire retardant core 22, a sealing gasket 14 is correspondingly arranged between the connecting shell 11 and the fire retardant core shell 12 in a cushioning mode, then a sleeve 32 is pushed, a pull head 341 penetrates through a clamping through notch 3221 in a clamping mode, the sleeve 32 is rotated through a rotating prism 323, the pull head 341 is clamped at a clamping positioning groove 3222, and finally a screw opening 331 is in spiral connection with a thread 342 on the upper portion of a tightening rod 34 by rotating a positive and negative screw adjusting spiral piece 33, so that the two groups of tightening rods 34 are drawn towards the middle portion;

during the use, flame passes through the inside that medium connecting pipe 13 got into casing 1, when flame got into casing 1 inside, at first get into spherical cavity 211 through intercommunicating pore 216 in, then collide shock wave buffering spheroid 212, shock wave buffering spheroid 212 promotes slip and holds the cap 223 through the spacing briquetting 215 that runs through the post 213 connection, slip and hold cap 223 carries out the elastic buffering, make shock wave blockked by shock wave buffering spheroid 212, shock wave passes through the arc structure of spherical cavity 211 and turns back simultaneously, flow to the port department of medium connecting pipe 13, flame fluid extinguishes gradually when hindering fire hole 23, produce shock wave simultaneously and collide and inhale ripples core 21 and back a fire relief core 22, make back a fire relief component 2 and collide casing 1, casing 1 cushions through the fastening spring 321 of connecting elements 3 department again.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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.

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. A steady state explosion suppression flame arrester with shock wave absorption device, includes casing (1) and back-fire relief element (2), its characterized in that: the wave-absorbing element (2) comprises two groups of wave-absorbing cores (21) and fire-retardant cores (22), a spherical cavity (211) is formed in the wave-absorbing core (21), a shock wave buffering sphere (212) is arranged in the spherical cavity (211), the shock wave buffering sphere (212) is of an oval sphere structure, a through column (213) is fixedly connected to one side of the shock wave buffering sphere (212), a limiting through hole (214) is formed in the center of one side of the wave-absorbing core (21), one end, far away from the shock wave buffering sphere (212), of the through column (213) penetrates through the limiting through hole (214) and is fixedly connected with a limiting abutting block (215), a buffer groove (221) is formed in the center of the surface of the fire-retardant core (22), the inside of the buffer groove (221) is connected with a sliding bearing cap (223) through a buffer spring (222), and the limiting abutting block (215) penetrates through the buffer groove (221) and is in compression joint with the sliding bearing cap (223), the other sides of the two wave-absorbing cores (21) are respectively provided with a communicating hole (216), the periphery of the surface of one side of the wave-absorbing core (21) and the periphery of the surface of the fire retardant core (22) are respectively provided with a fire retardant hole (23), one side of the wave-absorbing core (21) is fixedly connected with two groups of arc-shaped limiting clamping plates (217), the surfaces of both sides of the fire retardant core (22) are both provided with arc-shaped limiting clamping grooves (224), the arc-shaped limiting clamping plate (217) is clamped with the arc-shaped limiting clamping groove (224), the fire blocking hole (23) at the wave absorbing core (21) is corresponding to and communicated with the fire blocking hole (23) at the fire retardant core (22), the shell (1) comprises two groups of connecting shells (11) and fire retardant core shells (12), one side of each group of connecting shells (11) is communicated with a medium connecting pipe (13), and one end of the medium connecting pipe (13) positioned in the connecting shell (11) penetrates through the communication hole (216).

2. A steady state explosion suppression flame arrestor provided with a shock wave absorbing device as claimed in claim 1, wherein: the other sides of the two groups of connecting shells (11) are respectively arranged at the left side and the right side of the fire retardant core shell (12), and a sealing gasket (14) is arranged between the connecting shells (11) and the fire retardant core shell (12).

3. A steady state explosion suppression flame arrestor provided with a shock wave absorbing device as claimed in claim 1, wherein: the fire retardant core shell (12) is connected with the connecting shell (11) through the connecting component (3), the connecting component (3) comprises two groups of fixing rings (31), two groups of sleeves (32) and a positive and negative screw adjusting screw part (33), and the fixing rings (31) are fixedly connected with the left end and the right end of the fire retardant core shell (12) respectively.

4. A steady state explosion suppression flame arrestor provided with a shock wave absorbing device as claimed in claim 3, wherein: two sets of sleeve (32) are established respectively in the outside of two sets of connection shells (11), and sleeve (32) and connection shell (11) swing joint, the both ends in connection shell (11) outside all are equipped with spacing ring (111), the inside cover of sleeve (32) is equipped with fastening spring (321), and fastening spring (321) cover establishes in the outside of connecting shell (11).

5. A steady state detonation flame arrestor provided with a shock wave absorbing device in accordance with claim 3, wherein: the outside of solid fixed ring (31) is run through and is had tight pull rod (34), the one end fixedly connected with pull head (341) of tight pull rod (34), opposite side fixedly connected with cardboard (322) of sleeve (32), and the outside on cardboard (322) surface has seted up the multiunit joint and has run through notch (3221), the joint runs through one side of notch (3221) and is equipped with joint constant head tank (3222).

6. A steady state detonation suppression flame arrestor provided with a shock wave absorbing device in accordance with claim 5 wherein: the groove mouth of joint through notch (3221) is reduced gradually, and pull head (341) run through in joint through notch (3221) department and with joint constant head tank (3222) department joint, one side fixedly connected with of sleeve (32) rotates prism (323).

7. A steady state detonation suppression flame arrestor provided with a shock wave absorbing device in accordance with claim 5 wherein: screw ports (331) are respectively formed at two ends of the positive and negative wire adjusting screw pieces (33), and threads (342) are respectively arranged on the surfaces of the other ends of the tightening pull rods (34) connected with the fixing rings (31).

8. A steady state detonation flame arrestor provided with a shock wave absorbing device in accordance with claim 7, wherein: the two groups of fixing rings (31) are symmetrically arranged on threads (342) on the tightening pull rod (34), and two ends of the positive and negative thread adjusting screw part (33) are in screw connection with the threads (342) of the tightening pull rod (34) through screw ports (331).