CN211798398U

CN211798398U - Fire-retardant explosion venting device with plugging function

Info

Publication number: CN211798398U
Application number: CN201921964319.0U
Authority: CN
Inventors: 张福恒; 李从宇
Original assignee: Hubei Chuyu Petrochemical Equipment Co ltd
Current assignee: Hubei Chuyu Petrochemical Equipment Co ltd
Priority date: 2019-11-13
Filing date: 2019-11-13
Publication date: 2020-10-30
Anticipated expiration: 2029-11-13

Abstract

The utility model provides a back-fire relief is let out and is exploded device with shutoff function, including casing, intake pipe, blast pipe and shutoff piece, the intake pipe with the blast pipe position set up respectively in the both sides that the casing is relative, the intake pipe is equipped with first branch pipe downwards, the blast pipe upwards is equipped with the second branch pipe, the blast pipe is equipped with the adapter sleeve all around, the shutoff piece is including shutoff board, shutoff pipe and a plurality of connecting rod, and the one end of all connecting rods is fixed on the shutoff board, the other end inserts respectively in the adapter sleeve, shutoff pipe one end is fixed in on the shutoff board, the other end inserts in the intake pipe. The utility model has the advantages that: when taking place the burning explosion in the blast pipe, the shutoff board can drive the shutoff pipe and move to the left under the effect of explosion impulse force to the first branch pipe of shutoff prevents combustible gas and continues to discharge, prevents the intensity of a fire aggravation, and the isolation water of casing bottom simultaneously can prevent in the blast pipe flame when exploding gets into the intake pipe, prevents the intensity of a fire conduction.

Description

Fire-retardant explosion venting device with plugging function

Technical Field

The utility model relates to a pipeline back-fire relief device field especially relates to a back-fire relief explosion venting device with shutoff function.

Background

The back-fire relief explosion device mainly applies to combustible gas's pipeline transportation field, for example, gas combustible gas's pipeline transportation, its main function is that combustible gas lets the stretching that prevents the intensity of a fire and the high pressure that produces in the pipeline to the explosion of explosion prevention in the pipeline transportation process when conflagration or explosion takes place, prevent the explosion of body, but the back-fire relief explosion device on the existing market is most complicated in structure, and all can not take place shutoff air inlet when the explosion of firing at the blast pipe, make the interior combustible gas of air inlet continue to discharge, continue the combustible gas of discharge can continue to arouse the burning, lead to the intensity of a fire aggravation, consequently, the back-fire relief effect is not ideal enough, consequently, need a back-fire relief explosion device, when combustible gas takes place the burning explosion in the pipeline, in time make combustible gas continue to discharge, prevent the intensity of a fire aggravation.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides a fire-retardant explosion venting device with plugging function, including casing, intake pipe, blast pipe and shutoff piece, the casing top is equipped with lets out and explodes the mouth, the casing bottom is equipped with the isolated water, intake pipe and blast pipe position set up respectively in the casing relative both sides, and all pass the casing, be equipped with first branch pipe on the intake pipe downwards, the blast pipe is equipped with the second branch pipe upwards, first branch pipe and the second branch pipe all are located in the casing, first branch pipe with the intake pipe intercommunication, the second branch pipe with the blast pipe intercommunication, the blast pipe is equipped with a plurality of cylindric adapter sleeves all around, the one end of all adapter sleeves all is fixed in the casing inner wall, the shutoff piece includes shutoff board, shutoff pipe and a plurality of connecting rods, the one end of all connecting rods is all fixed on the shutoff board, the other end of each connecting rod is inserted one respectively in the connecting sleeve to it is fixed the shutoff board, the one end fixed connection of shutoff pipe in on the shutoff board, the other end of shutoff pipe is inserted in the intake pipe, when combustible gas in the exhaust pipe explodes, the buffer water is used for preventing flame from getting into the intake pipe, and the impact force that combustible gas produced in the exhaust pipe made the shutoff board to move to the intake pipe simultaneously to make the shutoff pipe plug up first pillar upper end prevents that the intake pipe continues to exhaust in the casing.

Further, the height of the isolated water level exceeds the lower end of the first branch pipe, so that the lower end of the first branch pipe is sealed in a liquid mode.

Furthermore, the explosion venting port is provided with an explosion venting cap which seals the explosion venting port, and the explosion venting port is used for the explosion of the air inlet pipe, so that the combustible gas in the air inlet pipe breaks through the explosion venting cap to release pressure.

Further, the explosion venting port is displaced right above the second branch pipe.

Further, the explosion venting cap is made of rubber.

Further, the edge of the explosion venting cap is bonded on the explosion venting port so as to seal the explosion venting port.

Further, the blocking plate is a circular plate.

Furthermore, the number of the connecting sleeves and the number of the connecting rods are four.

The utility model relates to a fire relief is let out and is exploded device's beneficial effect with shutoff function: be equipped with the shutoff piece in the casing, the shutoff pipe of shutoff piece inserts go into intraductally, when taking place the burning explosion in the blast pipe, the shutoff board can drive the shutoff pipe under the effect of explosion impact force and move to a left side to the first branch pipe of shutoff prevents combustible gas and continues to discharge, prevents the intensity of a fire aggravation, and the casing bottom is equipped with the isolated water simultaneously, and flame gets into the intake pipe when can preventing to explode in the blast pipe, prevents the intensity of a fire conduction.

Drawings

Fig. 1 is a schematic view of the internal structure of a fire-retardant explosion-venting device with a plugging function of the present invention;

fig. 2 is a left side view of the closure 8 of fig. 1;

fig. 3 is a right side view of the closure 8 of fig. 1;

in the figure: 1-tank body, 11-connecting sleeve, 2-air inlet pipe, 21-first branch pipe, 3-exhaust pipe, 31-second branch pipe, 4-water inlet, 5-water outlet, 6-explosion venting port, 7-explosion venting cap, 8-plugging piece, 81-plugging plate, 82-plugging pipe, 83-connecting rod and 9-isolation water.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be further described below with reference to the accompanying drawings.

Referring to fig. 1, 2 and 3, a fire-retardant explosion-venting device with a plugging function comprises a shell 1, an air inlet pipe 2, an exhaust pipe 3 and a plugging piece 8, wherein an explosion-venting port 6 is arranged at the top of the shell 1, isolated water 9 is arranged at the bottom of the shell 1, a water inlet 4 and a water outlet 5 are respectively arranged at two sides of the shell 1, the water inlet 4 is used for supplementing the isolated water 9 into the shell 1, and the water outlet 5 is used for discharging the isolated water 9. Intake pipe 2 with blast pipe 3 set up respectively in 1 relative both sides of casing, and all pass casing 1, intake pipe 2 is equipped with first branch pipe 21 downwards, blast pipe 3 upwards is equipped with second branch pipe 31, first branch pipe 21 with second branch pipe 31 all is located in casing 1, first branch pipe 21 with intake pipe 2 intercommunication, it exceeds to separate 9 surface of water height of water first branch pipe 21 lower extreme, thereby the liquid seal port under the first branch pipe 21. Let out and explode mouthful 6 and be located directly over the second branch pipe, let out to be equipped with on exploding mouthful 6 and let out and explode cap 7, let out and explode cap 7 and seal let out and explode mouthful 6, let out and explode mouthful 6 and be used for when blast pipe 3 explodes combustible gas breaks in the blast pipe 3 let out and explode cap 7 thereby the pressure release. Preferably, the explosion venting cap 7 is made of rubber, and the edge of the explosion venting cap 7 is bonded to the explosion venting port 6 so as to seal the explosion venting port 6. The second branch pipe 31 is communicated with the exhaust pipe 3, a plurality of cylindrical connecting sleeves 11 are arranged around the exhaust pipe 3, and one ends of all the connecting sleeves 11 are fixed on the inner wall of the shell 1.

The shutoff piece 8 is including shutoff board 81, shutoff pipe 82 and a plurality of connecting rod 83, preferably, the connecting rod 83 with adapter sleeve 11 quantity is the same, is four, shutoff board 81 is the circular slab, and the one end of all connecting rods 83 is all fixed on the shutoff board 81, and the other end of each connecting rod 83 all inserts one in connecting 11 covers, thereby it is fixed shutoff board 81, the one end fixed connection of shutoff pipe 82 in on the shutoff board 81, the other end of shutoff pipe 82 inserts in the intake pipe 3, separate water and be used for prevent flame entering during the explosion in the intake pipe 3, shutoff piece 8 is used for shutoff when blasting in the intake pipe 3 intake pipe 2.

Referring to fig. 1, the working principle of the fire-retardant explosion-venting device with plugging function of the present invention is as follows: combustible gas in the intake pipe 2 passes through in the export casing 1 of first branch pipe 21 lower extreme rightward to left port through blast pipe 3 and the last port of second branch pipe 31 gets into blast pipe 3, thereby make combustible gas enters into blast pipe 3 from intake pipe 2, realizes the transportation of combustible gas in the pipeline, when blast pipe 3 takes place the burning explosion in saying, the buffer 9 can prevent that flame from getting into the combustible gas explosion in the intake pipe 2, and the impact force that combustible gas explosion in the blast pipe 3 produced makes shutoff board 81 remove left, thereby makes the first branch pipe 21 upper end of shutoff pipe 82 shutoff, prevents that intake pipe 2 continues to exhaust in the casing 1.

The utility model has the advantages that: be equipped with the shutoff piece in the casing, the shutoff pipe of shutoff piece inserts go into intraductally, when taking place the burning explosion in the blast pipe, the shutoff board can drive under the effect of explosion impact force, and the shutoff pipe moves left and the first pillar of shutoff, prevents that combustible gas continues to discharge, prevents the intensity of a fire aggravation, and the casing bottom is equipped with the isolated water simultaneously, and flame gets into the intake pipe when can preventing explosion in the blast pipe in, prevents the intensity of a fire conduction.

In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.

The features of the embodiments and embodiments described herein above may be combined with each other without conflict.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides a back-fire relief is let out and is exploded device with shutoff function which characterized in that: the water-proof and air-proof device comprises a shell, an air inlet pipe, an exhaust pipe and a plugging piece, wherein the bottom of the shell is provided with isolated water, the air inlet pipe and the exhaust pipe are respectively arranged at two opposite sides of the shell and penetrate through the shell, a first branch pipe is arranged on the air inlet pipe downwards, a second branch pipe is arranged on the exhaust pipe upwards, the first branch pipe and the second branch pipe are both positioned in the shell, the first branch pipe is communicated with the air inlet pipe, the second branch pipe is communicated with the exhaust pipe, a plurality of cylindrical connecting sleeves are arranged around the exhaust pipe, one end of each connecting sleeve is fixed on the inner wall of the shell, the plugging piece comprises a plugging plate, a plugging pipe and a plurality of connecting rods, one end of each connecting rod is fixed on the plugging plate, the other end of each connecting rod is respectively inserted into one connecting sleeve, so that the plugging plate is fixed, one end of each plugging pipe is fixedly connected on the, the other end of shutoff pipe inserts in the intake pipe, when combustible gas in the exhaust pipe explodes, the buffer water is used for preventing flame from getting into the intake pipe, and the impact force that combustible gas produced in the exhaust pipe made the shutoff board to remove to the intake pipe simultaneously to make the shutoff pipe block up first pillar upper end prevents that the intake pipe continues to discharge to the casing.

2. A fire and explosion arresting device with a blocking function as claimed in claim 1, wherein: the height of the isolated water level exceeds the lower end of the first branch pipe, so that the lower port of the first branch pipe is sealed in a liquid mode.

3. A fire and explosion arresting device with a blocking function as claimed in claim 1, wherein: the explosion venting device is characterized in that an explosion venting port is formed in the top of the shell, an explosion venting cap is arranged on the explosion venting port and seals the explosion venting port, and the explosion venting port is used for enabling combustible gas in the air inlet pipe to burst the explosion venting cap to be released when the air inlet pipe explodes.

4. A fire and explosion arresting device with a blocking function as claimed in claim 3, wherein: and the explosion venting port is displaced right above the second branch pipe.

5. A fire and explosion arresting device with a blocking function as claimed in claim 3, wherein: the explosion venting cap is made of rubber.

6. A fire and explosion arresting device with a blocking function as claimed in claim 5, wherein: the edge of the explosion venting cap is bonded on the explosion venting port so as to seal the explosion venting port.

7. A fire and explosion arresting device with a blocking function as claimed in claim 1, wherein: the plugging plate is a circular plate.

8. A fire and explosion arresting device with a blocking function as claimed in claim 1, wherein: the connecting sleeve and the connecting rod are four in number.