CN208560453U - A kind of explosion proof fire-fighting ventilation hood - Google Patents
A kind of explosion proof fire-fighting ventilation hood Download PDFInfo
- Publication number
- CN208560453U CN208560453U CN201820544416.3U CN201820544416U CN208560453U CN 208560453 U CN208560453 U CN 208560453U CN 201820544416 U CN201820544416 U CN 201820544416U CN 208560453 U CN208560453 U CN 208560453U
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- fire
- explosion
- canopy
- ring bracket
- pressure ring
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Abstract
The utility model provides a kind of explosion proof fire-fighting ventilation hood.The bottom of the vent hood is welded with connecting flange, connecting flange top is respectively welded lower linking tube, end socket and upper connecting tube, the top of upper connecting tube is equipped with inner ring bracket, back-fire relief disk is housed on inner ring bracket, back-fire relief disk is connected and fixed by bolt and inner ring bracket, and back-fire relief disk top is equipped with pressure ring bracket and pressure ring, and the centre of pressure ring is equipped with explosion-proof bar, the end of explosion-proof bar passes through canopy and is fastened with fish tail cap, and canopy is connected by canopy connector with upper connecting tube.Not only Fire resistances are up to state standards defined requirement the explosion proof fire-fighting ventilation hood, but also when forming burned flame on flame retardant bed, canopy can automatic tripping, so that it is guaranteed that oil tank fire safety.
Description
Technical field
The utility model relates to arrive field of petrochemical industrial, it is related specifically to a kind of anti-explosion fire-retardant ventilation of oil storage tank
Cover.
Background technique
Explosion proof fire-fighting ventilation hood belongs to the fire safety equipment on inflammable and flammable tank venting nozzle and on exhaust pipe mouth.
Explosion proof fire-fighting ventilation hood is mounted on inflammable storage tank blow vent and exhaust outlet, is being encountered caused by lightning stroke spark or external firing
When spark or flame, this fire source can be prevented to scurry into and cause fire in storage tank；Meanwhile when forming burned flame on flame retardant bed
When, the automatic tripping of anti-explosion cover energy, the burning of flame opening, to prevent accumulator tank from exploding, thus is stone without will lead to burning
Gas station's oil tank, tank truck etc. are various inflammable in oily chemical company or Storage Tanks Combustible Liquid is ventilated on nozzle and fuel gas exhaust
Indispensable safety equipment on nozzle.
On various inflammable or Storage Tanks Combustible Liquid the ventilation nozzle such as existing gas station's oil tank, tank car and exhaust pipe mouth
On, metal mesh type fire arrester is mostly used, national standard, the more anti-explosion cover without that can automatically turn on is not achieved.Foreign countries' some is adopted
Be directly installed on ventilation nozzle with filled type porous type fire arrester, have fixed rain-proof, dust cover and it is anti-without automatic opening
Quick-fried cover can not achieve the purpose that safe handling, because flame is by fixed anti-when forming combustion flame above back-fire relief element
The obstruction of rain, dust cover cannot form open burning, and flame is forced to flash back back-fire relief element, increase back-fire relief component temperature, work as temperature
When degree reaches oil gas burning point, just there is the danger for causing fuel tank explosion.
Summary of the invention
The purpose of this utility model is to provide a kind of anti-explosion fire-retardants of oil storage tank being made of canopy, back-fire relief disk, shell
Vent hood.
To achieve the above object, the technical solution of the utility model are as follows:
A kind of explosion proof fire-fighting ventilation hood, including connecting flange, lower linking tube, end socket, upper connecting tube, inner ring bracket, back-fire relief disk, rain
Cover connector, pressure ring bracket, pressure ring, explosion-proof bar and canopy, the bottom of the vent hood are welded with connecting flange, on connecting flange
Portion is respectively welded lower linking tube, end socket and upper connecting tube, and the top of upper connecting tube is equipped with inner ring bracket, back-fire relief is housed on inner ring bracket
Disk, back-fire relief disk are connected and fixed by bolt and inner ring bracket, and back-fire relief disk top is equipped with pressure ring bracket and pressure ring, the intermediate dress of pressure ring
There is explosion-proof bar, the end of explosion-proof bar passes through canopy and fastened with fish tail cap, and canopy is connected by canopy connector with upper connecting tube.
Compared with prior art, the good effect of the utility model are as follows:
1, not only Fire resistances are up to state standards defined requirement the explosion proof fire-fighting ventilation hood, but also once in flame retardant bed
When upper formation burned flame, the automatic tripping of canopy energy, so that it is guaranteed that oil tank fire safety；
2, the explosion proof fire-fighting ventilation hood is more convenient in inspection, cleaning or replacement back-fire relief disk due to using the structure, because
And it is widely portable to various inflammable or Storage Tanks Combustible Liquid blow vent in the petrochemical enterprises such as gas station's oil tank, tank car
On exhaust outlet.
Detailed description of the invention
Fig. 1, explosion proof fire-fighting ventilation hood schematic cross-sectional view.
In figure: 1, connecting flange, 2, lower linking tube, 3, end socket, 4, upper connecting tube, 5, inner ring bracket, 6, back-fire relief disk, 7, canopy company
Fitting, 8, pressure ring bracket, 9, pressure ring, 10, explosion-proof bar, 11, canopy, 12, fish tail cap.
Specific embodiment
Clear, complete description further is carried out to the technical solution of the utility model with reference to the accompanying drawing.
As shown in Figure 1, explosion proof fire-fighting ventilation hood is made of canopy 11, back-fire relief disk 6, connecting flange 1, lower linking tube 2, end socket 3,
Back-fire relief disk 6 is ripple flame retardant bed made of two layers of stainless steel band, and end socket 3 is carbon steel.With connecting flange 1 and oil tank or tank car
It is connected, back-fire relief disk 6 is placed in the end socket 3 on 2 top of lower linking tube and the groove of upper connecting tube 4, is supported by inner ring bracket 5, and by pressing
Ring 9 and pressure ring bracket 8 compress, with vibration proof；It is connected and fixed integrally, is prevented using explosion-proof bar 10 between back-fire relief disk 6 and canopy 11
Quick-fried bar 10 is made of F4 polytetrafluoroethylene (PTFE)；Canopy 11 is connected with upper connecting tube 4 by canopy connector 7.Normal condition is rained
The explosion-proof bar 10 of cover 11 and fish tail cap 12 are fixed, make in stress, after explosion-proof bar 10 melts, canopy 11 is by elastic force
Effect automatically turns on, to have the function that anti-explosion fire-retardant.
Claims (1)
1. a kind of explosion proof fire-fighting ventilation hood, including connecting flange (1), lower linking tube (2), end socket (3), upper connecting tube (4), inner ring bracket
(5), back-fire relief disk (6), canopy connector (7), pressure ring bracket (8), pressure ring (9), explosion-proof bar (10) and canopy (11), feature exists
In: the bottom of the vent hood is welded with connecting flange (1), and connecting flange (1) top is respectively welded lower linking tube (2), end socket
(3) inner ring bracket (5) are housed, back-fire relief disk (6) are housed on inner ring bracket (5), back-fire relief with upper connecting tube (4), the top of upper connecting tube (4)
Disk (6) is connected and fixed by bolt with inner ring bracket (5), and back-fire relief disk (6) top is equipped with pressure ring bracket (8) and pressure ring (9), pressure ring
(9) centre is equipped with explosion-proof bar (10), and the end of explosion-proof bar (10) passes through canopy (11) and fastened with fish tail cap (12), canopy
(11) it is connected by canopy connector (7) with upper connecting tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820544416.3U CN208560453U (en) | 2018-04-17 | 2018-04-17 | A kind of explosion proof fire-fighting ventilation hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820544416.3U CN208560453U (en) | 2018-04-17 | 2018-04-17 | A kind of explosion proof fire-fighting ventilation hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208560453U true CN208560453U (en) | 2019-03-01 |
Family
ID=65480834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820544416.3U Active CN208560453U (en) | 2018-04-17 | 2018-04-17 | A kind of explosion proof fire-fighting ventilation hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208560453U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115228018A (en) * | 2021-04-23 | 2022-10-25 | 中国石油化工股份有限公司 | Pipe end burning-resistant flame arrester |
-
2018
- 2018-04-17 CN CN201820544416.3U patent/CN208560453U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115228018A (en) * | 2021-04-23 | 2022-10-25 | 中国石油化工股份有限公司 | Pipe end burning-resistant flame arrester |
| CN115228018B (en) * | 2021-04-23 | 2023-07-18 | 中国石油化工股份有限公司 | Fire-resistant flame arrester of pipe end |
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