CN212291336U

CN212291336U - Composite safety explosion-proof device for ventilation pipe of inflammable and explosive storage tank

Info

Publication number: CN212291336U
Application number: CN202020667321.8U
Authority: CN
Inventors: 刘恩隆; 周泽恩; 王紫涵; 周国胜; 刘波; 倪福源
Original assignee: JILIN FUNING PETROLEUM EQUIPMENT ENGINEERING CO LTD
Current assignee: JILIN FUNING PETROLEUM EQUIPMENT ENGINEERING CO LTD
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-01-05
Anticipated expiration: 2030-04-27

Abstract

The utility model provides a flammable and explosive storage tank breather pipe combined insurance explosion-proof equipment device, belongs to fuel, liquefied gas equipment technical field, characterized by: explosion-proof core is installed in last casing, both ends are equipped with holder A respectively about the explosion-proof core, jump ring A and holder B, jump ring B, explosion-proof core is by holder A, holder B is fixed and support, the case, the disk seat is installed in the casing down in proper order, the case is connected with the valve rod through redundant coupling assembling, the valve rod is installed at axial support, axial support is by jump ring C, jump ring D is fixed, the valve rod is equipped with the spring at axial support downside, the upside is equipped with inductive element, the upper and lower extreme of axial support is equipped with jump ring C respectively, jump ring D, the axial support is by jump ring C, jump ring D is fixed. The beneficial effects are that: 1. different treatment modes are adopted to control the vent pipe of the flammable and combustible storage tank to achieve explosion-proof safety; 2. the combustible and explosive storage tank can be guaranteed in multiple dimensions; 3. sparks, flames and high-temperature airflow generated at any position and moving to the storage tank are all blocked; 4. is economical and applicable, and is easy to install and popularize.

Description

Composite safety explosion-proof device for ventilation pipe of inflammable and explosive storage tank

Technical Field

The utility model belongs to the technical field of finished oil, liquefied gas equipment.

Background

At present, the vent pipe of the flammable and explosive liquid storage tank of an automobile gas station or a similar site is only a metal pipe, and basically no maintenance operation is needed, so the fire-proof and explosion-proof safety requirements of the whole pipe can be met only by installing a fire-retardant vent cap at the top of the vent pipe, which is not less than 4 m high, but at present, along with the requirements of the country on the environmental protection safety of the gas station, the vent pipe of the storage tank of the gas station is frequently repaired and disassembled, when the repair and disassembly are carried out, a hole which is used for ensuring that the fire-retardant storage tank passes through the fire-retardant vent cap to be safely protected and can be breathed with the outside is opened, if unexpected sparks, flames and high-temperature air flows are generated, the molecules are very easy to enter the storage tank to cause storage tank explosion accidents, or the molecules are detonated through the original safety leaks on the vent pipe of the flammable and explosive storage tank to achieve the, The need for change.

SUMMERY OF THE UTILITY MODEL

The utility model aims at: the utility model provides a compound insurance explosion-proof equipment of inflammable and explosive storage tank breather pipe device, has solved the inflammable and explosive liquid or the gaseous trade storage tank breather pipe department and has produced unexpected spark, flame, high temperature air current and cause the problem of storage tank explosion.

The technical scheme of the utility model is that: go up the casing, the casing is by flange B down, flange C links into an organic whole, both ends are equipped with flange A respectively in addition, flange D, explosion-proof core is installed in last casing, both ends are equipped with holder A respectively about the explosion-proof core, jump ring A and holder B, jump ring B, explosion-proof core is by holder A, holder B is fixed and is supported, a valve core, the disk seat is installed in the casing down in proper order, the case is connected with the valve rod through redundant coupling assembling, the valve rod is installed at the axial support, the axial support is by jump ring C, jump ring D is fixed, the valve rod is equipped with the spring at the axial support downside, the upside is equipped with induction element, the upper and lower extreme is equipped with jump ring C respectively on the axial support, jump.

The utility model has the advantages that: 1. the method has the advantages that composite insurance and multi-angle scene control are realized, and different treatment methods are adopted for different hazard sources to control the hidden danger at the vent pipe of the flammable and explosive storage tank so as to achieve explosion-proof safety; 2. the composite explosion-proof device is arranged in advance on the vent pipe of the flammable and explosive storage tank, so that the flammable and explosive storage tank can be guaranteed to be safer in multiple dimensions; 3. after the air inlet pipe is installed in the tank body, sparks, flames and high-temperature air flow generated at any part of the upper air pipe outside the tank body can be blocked by the air inlet pipe; 4. is economical and applicable, and is easy to install and popularize.

Drawings

Fig. 1 is a sectional view of the structure of the present invention.

Detailed Description

The invention will be further described with reference to the accompanying drawings:

as shown, 1, flange a; 2. an explosion-proof core; 3. an upper housing; 4. a flange B; 5. an inductive element; 6. a flange C; 7. a spring; 8. a valve stem; 9. a valve core; 10. a lower housing; 11. a flange D; 12. a clamp spring A; 13. a clamp seat A; 14. a holder B; 15. a clamp spring B; 16. a clamp spring C; 17. an axial support; 18. a clamp spring D; 19. a redundant connection assembly; 20. a valve seat.

The utility model discloses an upper casing, lower casing, upper casing, lower casing are connected into an organic whole by flange B, flange C, and both ends are equipped with flange A, flange D respectively in addition, be equipped with explosion-proof core in the upper casing, both ends are equipped with holder A, jump ring A and holder B, jump ring B respectively about the explosion-proof core, internal case, the disk seat of being equipped with of inferior valve, the case passes through redundant coupling assembling and is connected with the valve rod, the valve rod is installed at the axial support, the valve rod is in the axial support downside is equipped with the spring, and the upside is equipped with sensing element, the lower extreme is equipped with jump ring C, jump ring D respectively on the axial support, the utility model provides a flammable and explosive liquid storage tank breather pipe department produces the problem that spark is unexpected, flame, high temperature gas stream.

The upper shell is provided with the explosion-proof core which can extinguish or weaken sparks, flame and high-temperature airflow, and the lower shell is provided with the valve core and the valve seat which can block sparks, flame and high-temperature airflow.

The upper shell where the explosion-proof core is arranged on the upper shell, and the lower shell where the valve core and the valve seat are arranged is arranged on the lower shell.

The upper shell and the lower shell can be disassembled or assembled through the flange B and the flange C.

The explosion-proof core can extinguish or weaken sparks, flames and high-temperature airflow.

The valve core, the valve seat and the components thereof can be inducted and closed in a linkage manner, so that the propagation of sparks, flame and high-temperature airflow to the direction of the storage tank is blocked, and the outward discharge of the gas in the storage tank is not blocked.

The explosion-proof core is fixed and supported by the clamping seat A and the clamping seat B.

The explosion-proof core, the clamping seat A and the clamping seat B are fixed by the clamp spring A and the clamp spring B.

The valve core and the valve rod are connected by a redundant connecting component.

The redundant connecting assembly can be automatically adjusted, so that the valve core is completely attached to the sealing surface of the valve seat.

The valve rod is mounted to the axial support.

The axial support may support the valve stem and move it in a prescribed axial direction.

The axial support is fixed by a clamp spring C and a clamp spring D.

And the valve rod is provided with a spring which can move the valve rod, the valve core and related parts thereof and combine and close the valve core and the valve seat.

And the valve rod is provided with an induction element at the upper side end of the axial support.

The sensing element can sense the ambient temperature and release the valve rod according to the set temperature so that the valve core is linked with the valve seat to be sealed and closed.

The utility model discloses step and flow are as follows during the use:

1. the lowest equipment flange of the storage tank vent pipe and the lowest vent pipe flange of the storage tank end are detached and temporarily removed according to relevant industry specifications and requirements and by using an anti-static clothes and an anti-explosion tool (the same below).

2. See the attached drawings (same below): the flange D11 is assembled with the flange of the tank end vent pipe as required with the upper shell 3 on top and the lower shell 10 on bottom.

3. The previously removed equipment and vent pipe are removed back and assembled with flange a1 and then installed.

4. The utility model discloses a workflow divide into following several kinds:

1) when scattered sparks, flames and high-temperature air flow outside flow into the storage tank vent pipe, the high-temperature air flow firstly contacts the explosion-proof core 2 in the upper shell 3 and is divided into units with smaller heat energy by the explosion-proof core 2, and the heat energy is absorbed and lost, so that the vent pipe can be normally used without manual intervention.

2) When external factors only ignite flame at the explosion-proof core 2, if the storage tank is in negative pressure, the flame can be sucked towards the explosion-proof core 2, and the flame is weak, the heat energy is small, and the flame can be cut by the explosion-proof core 2, absorbs the heat energy and is lost, so that the flame-proof core 2 can be normally used without manual intervention; if the storage tank is in positive pressure or balanced pressure, the flame is only slightly burnt on the upper surface of the explosion-proof core 2, and the flame can be easily smothered by using the fireproof blanket and then can be normally used.

3) When continuous or violent external sparks, flames and high-temperature air flows act, heat energy is conducted to the sensing element 5 due to the fact that heat energy absorbed by the anti-explosion core 2 is increased continuously, the sensing element 5 acts when the ambient environment reaches a set temperature, the valve rod 8 is released, the valve rod 8 moves axially in the axial support 17 due to the acting force of the spring 7 and simultaneously drives the valve core 9 and the redundant connecting assembly 19 to move towards the valve seat 20 to close the valve seat 20, the redundant connecting assembly 19 adjusts the position of the valve core 9 during closing to enable the sealing surface of the valve core 9 to be completely attached and sealed with the sealing surface of the valve seat 20, therefore sparks, flames or high-temperature air flows cannot be transmitted into the storage tank to avoid causing storage tank explosion, and at the moment, the sparks, the flames or the high-temperature air flows need to be eliminated first.

Claims

1. The utility model provides a flammable and explosive storage tank breather pipe composite insurance explosion-proof equipment device which characterized by: go up the casing, the casing is by flange B down, flange C links into an organic whole, both ends are equipped with flange A respectively in addition, flange D, explosion-proof core is installed in last casing, both ends are equipped with holder A respectively about the explosion-proof core, jump ring A and holder B, jump ring B, explosion-proof core is by holder A, holder B is fixed and is supported, the case, the disk seat is installed in the casing down in proper order, the case is connected with the valve rod through redundant coupling assembling, the valve rod is installed at the axial support, the valve rod is equipped with the spring at axial support downside, the upside is equipped with sensing element, the lower extreme is equipped with jump ring C respectively on the axial support, jump ring D, the axial support is by jump.