CN219448005U

CN219448005U - Explosion venting tank

Info

Publication number: CN219448005U
Application number: CN202320372451.2U
Authority: CN
Inventors: 余维清
Original assignee: Fujian Sanming Runxiang New Materials Co ltd
Current assignee: Fujian Sanming Runxiang New Materials Co ltd
Priority date: 2023-03-03
Filing date: 2023-03-03
Publication date: 2023-08-01
Anticipated expiration: 2033-03-03

Abstract

The utility model relates to an explosion venting tank, which comprises a tank body and a pressure relief device welded on the tank body; the tank body comprises a storage cavity; the pressure relief device comprises a shell connected with the tank body; the shell comprises an air leakage hole communicated with the storage cavity, a first barrier wall surrounding the air leakage hole and a second barrier wall surrounding the first barrier wall; a first gap is formed between the first barrier rib and the second barrier rib; the first barrier wall comprises an exhaust hole arranged on the circumferential surface of the first barrier wall; the pressure relief device also comprises a hole blocking mechanism for movably blocking the gas relief hole. In the actual implementation process, the pressure in the tank body is increased to extrude the air seal piece, so that the air seal piece slides along the first barrier wall, the pre-compression spring contracts to store force, the air leakage hole is communicated with the air exhaust hole, and high-pressure air enters the first gap through the air leakage hole and the air exhaust hole to be exhausted.

Description

Explosion venting tank

Technical Field

The utility model relates to the technical field of explosion venting tanks, in particular to an explosion venting tank.

Background

The explosion venting tank is short for pressure relief type explosion venting tank, is widely applied to chemical production, is a conventional storage tank for reaction materials, and can raise the air pressure in the tank body along with the change of the external environment temperature when storing reactants, and can easily cause the tank body to crack and explode if the air pressure in the tank body is rapidly increased and can not be timely relieved, so that the workers are injured seriously.

Disclosure of Invention

First, the technical problem to be solved

In order to solve the problems in the prior art, the utility model provides the explosion venting tank capable of safely and efficiently venting pressure.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

an explosion venting tank comprises a tank body and a pressure relief device welded on the tank body; the tank body comprises a storage cavity; the pressure relief device comprises a shell connected with the tank body; the shell comprises an air leakage hole communicated with the storage cavity, a first barrier wall surrounding the air leakage hole and a second barrier wall surrounding the first barrier wall; a first gap is formed between the first barrier rib and the second barrier rib; the first barrier wall comprises an exhaust hole arranged on the circumferential surface of the first barrier wall; the pressure relief device also comprises a hole blocking mechanism for movably blocking the pressure relief hole; the hole blocking mechanism comprises an air seal piece connected between the air leakage hole and the air exhaust hole, a spiral cover connected on the first barrier wall in a threaded manner, a pressure regulating pipe connected with the spiral cover in a threaded manner, and a pre-tightening spring propped between the air seal piece and the pressure regulating pipe; the exhaust holes are arranged from top to bottom.

The air seal piece comprises a guide rod in sliding sealing connection with the pressure regulating pipe and a sliding seat fixedly connected with the guide rod; the sliding seat comprises a sliding block sliding along the first barrier wall and a first sealing ring connected between the first barrier wall and the sliding block.

The pre-tightening spring is sleeved on the outer side of the guide rod; the pre-tightening spring is propped against the space between the sliding block and the pressure regulating pipe.

The hole blocking mechanism further comprises a second sealing ring connected between the guide rod and the pressure regulating pipe.

The tank body comprises a tank body, a base welded with the tank body, and a diaphragm arranged between the base and the tank body; a second gap is formed between the diaphragm and the base.

The diaphragm is made of a metallic material.

The base comprises an edge part and a middle part which are welded with the barrel body; the base is tapered from the edge portion to the intermediate portion.

The base also comprises a notch arranged on the middle part.

The barrel body comprises an annular wall and a cover wall connected above the annular wall; the annular wall tapers from top to bottom.

(III) beneficial effects

The beneficial effects of the utility model are as follows: in the actual implementation process, the pressure in the tank body is increased to squeeze the air seal piece, so that the air seal piece slides along the first barrier wall, the pre-compression spring contracts to store force, the air release hole is communicated with the air exhaust hole, and high-pressure air enters the first gap through the air release hole and the air exhaust hole to exhaust the high-pressure air; in particular, the second barrier wall is used to connect the exhaust duct when in use. After the pressure in the tank body is reduced, the pre-tightening spring returns to reclose the air leakage hole. The user can adjust the spring length by rotating the length of the pressure regulating pipe extending into the spiral cover, so as to adjust the pretightening force and achieve the threshold value when pressure relief is regulated. The greater the internal atmospheric pressure of jar, the longer the distance that then the atmoseal piece slided, consequently the more exhaust holes of intercommunication, and then reach the internal atmospheric pressure's of quick adjustment jar purpose, carry out safe high-efficient pressure release.

Drawings

FIG. 1 is a cross-sectional view of a explosion venting canister of an embodiment of the utility model;

FIG. 2 is an enlarged view of area A of an embodiment of the present utility model;

FIG. 3 is a schematic diagram of the structure of an explosion venting canister according to an embodiment of the utility model;

[ reference numerals description ]

The tank 1, the pressure relief device 2, the storage chamber 11, the housing 21, the air release hole 22, the first barrier wall 23, the second barrier wall 24, the first gap 25, the air vent 26, the hole blocking mechanism 27, the air seal 271, the screw cap 272, the pressure regulating tube 273, the pre-tightening spring 274, the guide rod 2711, the sliding seat 2712, the first seal ring 2713, the second seal ring 275, the tank 12, the base 13, the diaphragm 14, the second gap 15, the edge portion 131, the middle portion 132, the annular wall 121, and the cover wall 122.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings.

Referring to fig. 1-3, the explosion venting tank of the present utility model includes a tank body 1 and a pressure relief device 2 welded on the tank body 1; the tank 1 comprises a storage cavity 11; the pressure relief device 2 comprises a shell 21 connected with the tank body 1; the housing 21 includes a vent hole 22 communicating with the storage chamber 11, a first barrier wall 23 surrounding the vent hole 22, and a second barrier wall 24 surrounding the first barrier wall 23; a first gap 25 is provided between the first barrier wall 23 and the second barrier wall 24; the first barrier wall 23 includes an exhaust hole 26 provided on a circumferential surface thereof; the pressure relief device 2 further comprises a hole blocking mechanism 27 for movably blocking the pressure relief hole 22; the hole blocking mechanism 27 comprises a gas seal member 271 connected between the gas leakage hole 22 and the gas exhaust hole 26, a screw cap 272 screwed on the first barrier wall 23, a pressure regulating pipe 273 screwed on the screw cap 272, and a pre-tightening spring 274 propped between the gas seal member 271 and the pressure regulating pipe 273; the plurality of exhaust holes 26 are arranged from top to bottom. In the actual implementation process, the pressure in the tank body 1 is increased to press the air seal member 271, so that the air seal member 271 slides along the first barrier wall 23, the pre-compression spring contracts and stores force, the air release hole 22 is communicated with the air exhaust hole 26, and high-pressure air enters the first gap 25 through the air release hole 22 and the air exhaust hole 26 to exhaust the high-pressure air; specifically, the second barrier wall 24 is used to connect an exhaust duct in use. After the air pressure in the can 1 drops, the pretension spring 274 returns to reseal the vent hole 22. The user can adjust the length of the spring by rotating the length of the pressure regulating tube 273 extending into the spiral cover 272, and then adjust the pretightening force to reach the threshold value when pressure relief is regulated. The greater the air pressure in the tank 1, the longer the sliding distance of the air seal 271, so the more communicated exhaust holes 26 are, and the purpose of quickly adjusting the air pressure in the tank 1 is achieved, so that safe and efficient pressure relief is performed.

Preferably, the air seal 271 includes a guide rod 2711 slidably and sealingly connected to the pressure regulating tube 273 and a slide seat 2712 fixedly connected to the guide rod 2711; the slide block 2712 includes a slider that slides along the first barrier wall 23 and a first seal ring 2713 connected between the first barrier wall 23 and the slider. In actual practice, the leakage of high pressure gas is prevented by the first seal ring 2713.

Preferably, the pre-tightening spring 274 is sleeved outside the guide rod 2711; the pre-tension spring 274 abuts between the slider and the pressure regulating tube 273. In the actual implementation process, the guide rod 2711 limits the pre-tightening spring 274, so that the pre-tightening effect of the pre-tightening force is prevented from being reduced due to the deflection of the pre-tightening spring 274.

Preferably, the plugging mechanism 27 further includes a second seal 275 coupled between the guide rod 2711 and the pressure regulating tube 273. In actual practice, the high pressure gas is prevented from leaking from the regulator 273.

Preferably, the can 1 comprises a tub 12, a base 13 welded with the tub 12, and a diaphragm 14 between the base 13 and the tub 12; a second gap 15 is provided between the diaphragm 14 and the base 13. In the practical implementation process, before the pressure relief device 2 is opened, the high-pressure gas can squeeze the diaphragm 14 to compress the second gap 15, so that the volume of the tank 1 can be effectively increased, and the surface tank 1 is broken.

Preferably, the diaphragm 14 is made of a metallic material. The diaphragm 14 can be effectively prevented from being damaged.

Preferably, the base 13 includes an edge portion 131 and an intermediate portion 132 welded with the tub 12; the base 13 is tapered from the edge portion 131 to the intermediate portion 132. In the actual implementation process, if the air pressure cannot be timely released, the diaphragm 14 compresses the second gap 15 and then presses the base 13, so that the base 13 can be separated for early warning; if explosion occurs, the base 13 is weak, and can downwards perform directional pressure relief, so that the barrel 12 can be effectively prevented from being exploded, and workers can be injured by crushing.

Preferably, the base 13 further comprises a notch provided in the intermediate portion 132. In actual practice, the intermediate portion 132 of the base 13 is further thinned by providing a score.

Preferably, the tub 12 includes an annular wall 121 and a cover wall 122 connected above the annular wall 121; the annular wall 121 tapers from top to bottom. It is possible to effectively prevent the fragments from exploding due to the explosion above the annular wall 121.

The basic principle and main characteristics of the utility model and the advantages of the utility model are shown and described above, standard parts used by the utility model can be purchased from market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of the parts adopt conventional means such as mature bolt rivets and welding in the prior art, the machinery, the parts and the equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection modes in the prior art, so that the description is omitted.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent changes made by the specification and drawings of the present utility model, or direct or indirect application in the relevant art, are included in the scope of the present utility model.

Claims

1. An explosion venting tank comprises a tank body and a pressure relief device welded on the tank body; the tank body comprises a storage cavity; the method is characterized in that: the pressure relief device comprises a shell connected with the tank body; the shell comprises an air leakage hole communicated with the storage cavity, a first barrier wall surrounding the air leakage hole and a second barrier wall surrounding the first barrier wall; a first gap is formed between the first barrier rib and the second barrier rib; the first barrier wall comprises an exhaust hole arranged on the circumferential surface of the first barrier wall; the pressure relief device also comprises a hole blocking mechanism for movably blocking the pressure relief hole; the hole blocking mechanism comprises an air seal piece connected between the air leakage hole and the air exhaust hole, a spiral cover connected on the first barrier wall in a threaded manner, a pressure regulating pipe connected with the spiral cover in a threaded manner, and a pre-tightening spring propped between the air seal piece and the pressure regulating pipe; the exhaust holes are arranged from top to bottom.

2. A venting canister as defined in claim 1, wherein: the air seal piece comprises a guide rod in sliding sealing connection with the pressure regulating pipe and a sliding seat fixedly connected with the guide rod; the sliding seat comprises a sliding block sliding along the first barrier wall and a first sealing ring connected between the first barrier wall and the sliding block.

3. A venting canister as defined in claim 2, wherein: the pre-tightening spring is sleeved on the outer side of the guide rod; the pre-tightening spring is propped against the space between the sliding block and the pressure regulating pipe.

4. A venting canister as claimed in claim 3, wherein: the hole blocking mechanism further comprises a second sealing ring connected between the guide rod and the pressure regulating pipe.

5. A venting canister as defined in claim 4, wherein: the tank body comprises a tank body, a base welded with the tank body, and a diaphragm arranged between the base and the tank body; a second gap is formed between the diaphragm and the base.

6. A venting canister as defined in claim 5, wherein: the diaphragm is made of a metallic material.

7. A venting canister as defined in claim 6, wherein: the base comprises an edge part and a middle part which are welded with the barrel body; the base is tapered from the edge portion to the intermediate portion.

8. A venting canister as defined in claim 7, wherein: the base also comprises a notch arranged on the middle part.

9. A venting canister as defined in claim 8, wherein: the barrel body comprises an annular wall and a cover wall connected above the annular wall; the annular wall tapers from top to bottom.