CN217430710U

CN217430710U - Pipeline fire arrester with pressure relief device

Info

Publication number: CN217430710U
Application number: CN202221323038.9U
Authority: CN
Inventors: 赵洪波; 向鹏; 熊翔宇; 谢军; 李俊材; 贾继灿
Original assignee: China Petroleum and Chemical Corp; Sinopec Southwest Oil and Gas Co
Current assignee: China Petroleum and Chemical Corp; Sinopec Southwest Oil and Gas Co
Priority date: 2022-05-30
Filing date: 2022-05-30
Publication date: 2022-09-16
Anticipated expiration: 2032-05-30

Abstract

The utility model relates to a pipeline spark arrester, in particular to take pressure relief device's pipeline spark arrester, include: the flame arrester comprises a flame arrester body, wherein a flame-retardant core is arranged in the flame arrester body; pressure relief device, inside pressure relief passageway that sets up, pressure relief passageway one end with the entrance side intercommunication of spark arrester body, the other end with the exit side intercommunication of spark arrester body, set up the installation cavity in the pressure relief passageway, set up piston spare and spring in the installation cavity, the spring is used for supporting and pushes away the piston spare seals pressure relief passageway. The utility model discloses a take pressure relief device's pipeline spark arrester, both ends pipeline around pressure relief device intercommunication spark arrester along oil gas direction of delivery through setting up area pressure release passageway for block the shutoff and produce pressure at the entrance side and gather the back when the spark arrester body, the pressure of gathering can promote the piston piece and remove, opens pressure release passageway and walks around the spark arrester body that blocks from pressure release passageway, in time steps down, ensures oil gas pipeline normal operating and operation security.

Description

Pipeline fire arrester with pressure relief device

Technical Field

The utility model relates to a pipeline spark arrester, in particular to take pressure relief device's pipeline spark arrester.

Background

Set up explosion-proof spark arrester on the current oil gas pipeline usually and stop inflammable gas's flame to stretch and prevent the tempering and arouse the explosion, the inside back-fire relief layers such as silk screen, filler or buckled plate of packing usually of explosion-proof spark arrester sets up, provides tortuous passageway for flame through the back-fire relief layer, reaches fire-retardant, the effect of putting out a fire.

When the spark arrester is used, if the back-fire relief layer takes place to block up, will influence the normal transport of air current, lead to producing pressure and increaseing in spark arrester one side, increase the spark arrester and dismantle risk and pipeline operation risk, especially take place the detonation in back-fire relief layer one side, cause the damage to the back-fire relief layer easily at the detonation in-process, and produce in solid impurity gets into the back-fire relief layer, influence the normal circulation of air current in back-fire relief layer department, at present, mainly carry out the superpressure uninstallation through setting up special relief valve in specific position on the oil gas pipeline, the pressure release position is far away from the back-fire relief layer, however, it sets up the not only actual operation difficulty of relief valve to increase on the oil gas pipeline, and the cost is higher, still increase oil gas pipeline leakage point easily, increase oil gas pipeline operation potential safety hazard.

Therefore, a technical scheme is urgently needed at present to solve the technical problems that after the existing oil and gas pipeline flame arrester is plugged, pressure is accumulated, pressure cannot be timely reduced, and normal operation and operation safety of an oil and gas pipeline are affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the pipeline flame arrester with the pressure relief device is provided for solving the technical problems that after the existing oil and gas pipeline flame arrester is plugged, pressure is generated to accumulate, pressure cannot be reduced timely, and normal operation and operation safety of an oil and gas pipeline are affected.

In order to realize the purpose, the utility model discloses a technical scheme be:

a flame arrestor for a pipe with a pressure relief device, comprising: the flame arrester comprises a flame arrester body, wherein a flame-retardant core is arranged in the flame arrester body; pressure relief device, inside pressure relief passageway that sets up, pressure relief passageway one end with the entrance side intercommunication of spark arrester body, the other end with the exit side intercommunication of spark arrester body, set up the installation cavity in the pressure relief passageway, set up piston spare and spring in the installation cavity, the spring is used for supporting and pushes away the piston spare seals pressure relief passageway.

The utility model discloses a take pressure relief device's pipeline spark arrester, both ends pipeline around pressure relief device intercommunication spark arrester along oil gas direction of delivery through setting up area pressure release passageway for block the shutoff and produce pressure at the entrance side and gather the back when the spark arrester body, the pressure of gathering can promote the piston piece and remove, opens pressure release passageway and walks around the spark arrester body that blocks from pressure release passageway, in time steps down, ensures oil gas pipeline normal operating and operation security.

As the utility model discloses an optimal scheme, the piston spare is close to one side of spring sets up spacing boss, the spring housing is established on the spacing boss. Making the spring arrangement stable.

As the utility model discloses a preferred scheme, the piston spare is kept away from one side of spring sets up a spacing section of thick bamboo, a spacing section of thick bamboo with pressure release channel adaptation, spacing section of thick bamboo lateral wall sets up the intercommunicating pore. The limiting cylinder extends into the pressure relief channel, so that the piston piece is kept in a connection state with the pressure relief channel in the process of moving along the pressure relief channel, and the pressure relief device is ensured to be recycled.

As the utility model discloses a preferred scheme, still be provided with the locating part in the installation cavity, follow on the locating part pressure release passageway axis direction sets up the water conservancy diversion hole, the spring is kept away from the one end of piston spare with the locating part is connected. Further, the two ends of the spring are stable in deformation, and the stability of the spring in the stretching process is ensured.

As the preferred scheme of the utility model, pressure relief device includes first pipeline and the second pipeline of butt joint, first pipeline with the second pipeline intercommunication forms the pressure release passageway.

As the utility model discloses a preferred scheme, first pipeline one end sets up first casing, second pipeline one end sets up the second casing, first casing with second casing butt joint forms the installation cavity. The pressure relief device is easy to form, and the manufacturing cost and the installation cost of the pressure relief device are reduced.

As the utility model discloses a preferred scheme, first pipeline with the connection can be dismantled to first casing, the second pipeline with the connection can be dismantled to the second casing. The piston piece and the spring can be replaced by independently dismounting the mounting cavity part according to actual conditions, and the replacement cost is low.

As the utility model discloses a preferred scheme, the spark arrester body includes box and apron, the apron with box sealing connection, set up the back-fire relief core in the box.

As the utility model discloses a preferred scheme, the box sets up input tube and output tube, first pipeline with the input tube intercommunication, the second pipeline with the output tube intercommunication, the input tube with the output tube sets up relatively the back-fire relief core both sides. This spark arrester body simple structure can make things convenient for the equipment of pressure relief device and spark arrester body to use.

As the utility model discloses a preferred scheme, connect the division board perpendicularly on the apron, set up the through-hole on the division board, the embedding of back-fire relief core sets up in the through-hole. Make the back-fire relief core can take out along with the apron, the convenience is to the change and the maintenance of back-fire relief core, further ensures the operational safety and the stability of oil gas pipeline.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

through setting up the front and back both ends pipeline of pressure relief device intercommunication spark arrester edge oil gas direction of taking pressure release passageway for block the shutoff and produce pressure at the entrance side and gather the back when the spark arrester body, the pressure of gathering can promote the piston piece and remove, opens pressure release passageway and walks around the spark arrester body of jam from pressure release passageway, in time steps down, ensures oil gas pipeline normal operating and operation security.

Drawings

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

fig. 2 is a schematic view of the internal structure of the installation cavity in the present invention;

fig. 3 is a schematic view of the piston member according to the present invention;

fig. 4 is a schematic structural view of a flame arrester with a pressure relief device for a pipeline of the invention;

fig. 5 is a schematic structural view of the section a-a in fig. 4.

Icon:

1-a flame arrester body, 11-a flame retardant core, 12-a box body, 13-a cover plate, 14-an input pipe, 15-an output pipe, 16-a partition plate, 2-a pressure relief device, 21-a first pipeline, 22-a second pipeline, 3-an installation cavity, 31-a first shell, 32-a second shell, 4-a piston piece, 41-a limiting boss, 5-a spring, 6-a limiting cylinder, 61-a communication hole, 7-a limiting piece and 71-a diversion hole.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example 1

As shown in fig. 1-5, a flame arrestor for a pipe with a pressure relief device comprises: the flame arrester comprises a flame arrester body 1, wherein the flame arrester body 1 comprises a box body 12 and a cover plate 13, the cover plate 13 is hermetically connected with the box body 12, a flame arresting core 11 is arranged in the box body 12, an input pipe 14 and an output pipe 15 are communicated with the box body 12, and the input pipe 14 and the output pipe 15 are oppositely arranged on two sides of the flame arresting core 11; pressure relief device 2, pressure relief device 2 includes butt joint's first pipeline 21 and second pipeline 22, first pipeline 21 with second pipeline 22 intercommunication forms the pressure release passageway, first pipeline 21 with the 14 butt joint intercommunications of input tube, second pipeline 22 with output tube 15 butt joint intercommunication, set up installation cavity 3 in the pressure release passageway, set up piston spare 4 and spring 5 in the installation cavity 3, spring 5 is used for supporting the promotion 4 closures of piston spare the pressure release passageway.

In the pipe flame arrester with the pressure relief device, the pressure relief channel and the installation cavity 3 are inner cavities of pipe structural members, the cross sectional area of the installation cavity 3 is larger than that of the pressure relief channel, as shown in fig. 3, the piston member 4 is a disc structural member, a limit boss 41 is arranged on one side surface close to the spring 5, a limit barrel 6 is arranged on one side surface far away from the spring 5, the limit barrel 6 is a cylindrical structural member, and a plurality of communicating holes 61 are arranged on the limit barrel 6 along the axial direction, when in use, if pressure accumulation occurs, the piston member 4 is stressed to compress the spring 5 and moves towards one side of the installation cavity 3, so that the communicating holes 61 on the limit barrel 6 are communicated with the pressure relief channel and the installation cavity 3, the accumulated pressure bypasses the blocked flame arrester body 1 from the pressure relief channel and directly enters a pipeline on the other side of the flame arrester, after the pressure is recovered normally, the spring 5 pushes the piston member 4 to cut off the pressure relief channel and the installation cavity 3 again, prepare for the pressure release operation of next time, ensure oil gas pipeline normal operating and operation security, for conventional pipeline relief valve, this scheme combines together spark arrester and the pressure release structure of simple structure, realizes taking the spark arrester structure of pressure release function, and preparation cost is lower, maintain convenient to use.

Preferably, as shown in fig. 2, a limiting member 7 is further disposed in the mounting cavity 3, a flow guiding hole 71 is disposed on the limiting member 7 along the axial direction of the pressure relief channel, and one end of the spring 5, which is far away from the piston member 4, is connected to the limiting member 7. The limiting piece 7 is a circular ring structural piece and is arranged at the other end, opposite to the piston piece 4, in the installation cavity 3 and used for limiting the spring 5 and ensuring the stability of the spring 5 in the stretching process.

Preferably, as shown in fig. 1, a first housing 31 is disposed at one end of the first pipe 21, a second housing 32 is disposed at one end of the second pipe 22, and the first housing 31 and the second housing 32 are flange-butted to form the installation cavity 3.

Preferably, the first pipe 21 is screwed or flanged to the first housing 31, and the second pipe 22 is screwed or flanged to the second housing 32. So that the part of the installation cavity 3 can be detached separately to replace the piston piece 4 and the spring 5 according to actual conditions, and the replacement cost is lower.

Preferably, as shown in fig. 5, a partition plate 16 is vertically connected to the cover plate 13, a through hole is formed in the partition plate 16, the fire retardant core 11 is a box-type structure formed by a perforated box and used for containing fire retardant materials, and the fire retardant core 11 is embedded in the through hole.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a take pressure relief device's pipeline spark arrester which characterized in that includes:

the flame arrester comprises a flame arrester body (1), wherein a flame arrester core (11) is arranged in the flame arrester body (1);

pressure relief device (2), inside sets up pressure relief passageway, pressure relief passageway one end with the entrance side intercommunication of spark arrester body (1), the other end with the outlet side intercommunication of spark arrester body (1), set up installation cavity (3) in the pressure relief passageway, set up piston spare (4) and spring (5) in installation cavity (3), spring (5) are used for supporting the push away piston spare (4) seal pressure relief passageway.

2. The pipe flame arrester with the pressure relief device as defined in claim 1, wherein a limit boss (41) is arranged on one side of the piston member (4) close to the spring (5), and the spring (5) is sleeved on the limit boss (41).

3. The pipe flame arrester with the pressure relief device as defined in claim 2, wherein a limiting cylinder (6) is arranged on the side of the piston member (4) far away from the spring (5), the limiting cylinder (6) is matched with the pressure relief channel, and a communication hole (61) is arranged on the side wall of the limiting cylinder (6).

4. A pipe flame arrester with a pressure relief device as claimed in claim 3, wherein a limiting member (7) is further arranged in the installation cavity (3), a flow guide hole (71) is arranged on the limiting member (7) along the axial direction of the pressure relief channel, and one end of the spring (5) far away from the piston member (4) is connected with the limiting member (7).

5. A flame arrester as claimed in any of claims 1 to 4, characterised in that the pressure relief means (2) comprises first (21) and second (22) abutting pipes, the first (21) and second (22) pipes communicating to form the pressure relief passage.

6. A flame arrester with pressure relief device for pipes according to claim 5, characterized in that a first shell (31) is arranged at one end of the first pipe (21), a second shell (32) is arranged at one end of the second pipe (22), and the first shell (31) and the second shell (32) are butt-jointed to form the installation cavity (3).

7. A flame arrestor with pressure relief means as claimed in claim 6 wherein the first conduit (21) is removably attached to the first housing (31) and the second conduit (22) is removably attached to the second housing (32).

8. The flame arrester with pressure relief device for pipelines as claimed in claim 6, characterized in that the flame arrester body (1) comprises a box body (12) and a cover plate (13), the cover plate (13) is hermetically connected with the box body (12), and the flame arresting core (11) is arranged in the box body (12).

9. A flame arrester as claimed in claim 8 wherein the tank (12) is provided with an inlet conduit (14) and an outlet conduit (15), the first conduit (21) communicating with the inlet conduit (14), the second conduit (22) communicating with the outlet conduit (15), the inlet conduit (14) and the outlet conduit (15) being disposed on opposite sides of the flame arresting core (11).

10. The pipe flame arrester with pressure relief device according to claim 8, characterized in that a partition plate (16) is vertically connected to the cover plate (13), a through hole is formed in the partition plate (16), and the flame arrester core (11) is embedded in the through hole.