CN210831414U

CN210831414U - Explosion-proof device of compressed hydrogen gas dispenser

Info

Publication number: CN210831414U
Application number: CN201921945612.2U
Authority: CN
Inventors: 茹毅; 刘俊; 范云林; 张明宇; 黄孟阳; 赵煜
Original assignee: Yunnan Energy Research Institute Co Ltd
Current assignee: Yunnan Energy Research Institute Co Ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-06-23
Anticipated expiration: 2029-11-12

Abstract

The utility model belongs to the technical field of hydrogen adds mechanism of qi technique and specifically relates to an explosion-proof equipment of compressed hydrogen adds mechanism of qi, including the air entrainment organism, blast pipe and intake pipe are installed respectively to the both sides of air entrainment organism, and the one end level of intake pipe is provided with the air entrainment pipeline, through sealing connecting piece fastening connection between intake pipe and the air entrainment pipeline, and sealing connecting piece's the outside is provided with an explosion-proof section of thick bamboo, all is connected through sealing mechanism between the both ends of an explosion-proof section of thick bamboo and intake pipe and the air entrainment pipeline, and the bottom of an explosion-proof. The sealing mechanism is arranged, so that the explosion-proof cylinder can be tightly connected to the outer sides of the air inlet pipe and the air charging pipeline, the gas in the explosion-proof cylinder is ensured not to leak, and the use safety of the device is effectively improved; the self-closing device is arranged, so that when the leaked gas collected in the explosion-proof cylinder is too much, the gas filling pipeline can be automatically sealed, the gas filling work of the gas filling machine body is forbidden, and the gas leakage is reduced.

Description

Explosion-proof device of compressed hydrogen gas dispenser

Technical Field

The utility model relates to a hydrogen adds the mechanism of qi field, especially relates to an explosion-proof equipment that compressed hydrogen adds the mechanism of qi.

Background

Hydrogen is a main industrial raw material, is also the most important industrial gas and special gas, and has wide application in the fields of petrochemical industry, electronic industry, metallurgical industry, food processing, float glass, fine organic synthesis, aerospace and the like. Meanwhile, hydrogen is an ideal secondary energy source. Meanwhile, hydrogen is the cleanest fuel, and the combustion product of hydrogen is water, so that no pollution is caused to the environment. In contrast, vehicles fueled by gasoline and diesel fuel emit a large amount of nitrogen oxides,Tetraethyl lead[Pb(C2H5)4]It can cause acid rain, acid mist and severe lead poisoning. More importantly, the waste gas also contains strong carcinogenic substances of 3, 4-benzopyrene, which pollute the atmosphere and are harmful to health. Nowadays, the research on hydrogen as a novel energy source is very important in all countries in the world. The first trial run (on hydrogen as fuel) on a fuji highway at 200 km/hour was successful in japan 24.5 months 1984. The compressed hydrogen gas filling machine is one of common devices in the hydrogen gas using process, a sealing and fixing mechanism is usually used for mounting between the existing hydrogen gas filling machine and a gas filling pipeline, but the existing sealing and fixing mechanism can loosen in the long-time high-pressure using process, so that hydrogen gas leakage is caused to form explosion danger, and the explosion-proof device of the compressed hydrogen gas filling machine is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the existing sealing and fixing mechanism in the prior art can cause the loosening phenomenon in the long-time high-pressure use process, thereby leading to the hydrogen leakage to form the dangerous shortcoming of explosion, and the explosion-proof device of the compressed hydrogen gas dispenser.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an explosion-proof device of a compressed hydrogen gas filling machine comprises a gas filling machine body, wherein an exhaust pipe and an air inlet pipe are respectively arranged on two sides of the gas filling machine body, an air filling pipeline is horizontally arranged at one end of the air inlet pipe, the air inlet pipe is fixedly connected with the air filling pipeline through a sealing connecting piece, an explosion-proof cylinder is arranged on the outer side of the sealing connecting piece, two ends of the explosion-proof cylinder are connected with the air inlet pipe and the gas filling pipeline through a sealing mechanism, a self-closing device is arranged at the bottom of the explosion-proof cylinder and comprises a gas collecting box fixedly arranged at the bottom of the explosion-proof cylinder, the explosion-proof cylinder is communicated with the gas collecting box, a sealing gas cylinder is horizontally communicated with one end of the gas collecting box, a piston is slidably arranged in the sealing gas cylinder, a push rod is horizontally connected to one end, and the end part of the gas collection box outside the sealed inflator is fixedly connected with a U-shaped frame, a travel switch is installed on the position of the U-shaped frame corresponding to the push rod, the travel switch is respectively connected with a storage battery and an electromagnetic control valve through leads, the storage battery is fixedly installed on the outer side of the gas collection box, and the electromagnetic control valve is fixedly installed on the gas filling pipeline.

Preferably, sealing mechanism establishes at intake pipe or gas-entrapping pipeline outside sealing washer including the cover, a plurality of ring channels have all been seted up to the equal symmetry in both sides of sealing washer, the sealing washer corresponds the explosion-proof section of thick bamboo tip fixedly connected with solid fixed ring of position, the sealing washer cartridge is inside solid fixed ring, just gu fixed ring keeps away from explosion-proof section of thick bamboo one end and is connected with a plurality of card lamella along the circumferencial direction equidistance, card lamella inboard all offsets with the sealing washer surface, is a plurality of the rand has been clamped jointly in the outside of card lamella.

Preferably, the end part of the explosion-proof cylinder outside the fixing ring is fixedly connected with a protecting sleeve, and the protecting sleeve and the explosion-proof cylinder are of an integral structure and have a gap with the fixing ring.

Preferably, a return spring is sleeved on the outer side of the push rod between the piston and the end part of the sealing air cylinder, and a rubber pad is bonded at one end, far away from the piston, of the push rod.

Preferably, one end of the gas collecting box, which is far away from the sealing inflator, is horizontally communicated with a gas leakage pipe, and the inner part of the gas leakage pipe is in threaded connection with a sealing plug.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the sealing mechanism is arranged, so that the explosion-proof cylinder can be tightly connected to the outer sides of the air inlet pipe and the air charging pipeline, the gas in the explosion-proof cylinder is ensured not to leak, and the use safety of the device is effectively improved;

2. the self-closing device is arranged, so that when the leaked gas collected in the explosion-proof cylinder is too much, the gas filling pipeline can be automatically sealed, the gas filling work of the gas filling machine body is forbidden, and the gas leakage is reduced.

Drawings

Fig. 1 is a schematic structural view of an explosion-proof device of a compressed hydrogen dispenser according to the present invention;

fig. 2 is a schematic view of a cross-sectional structure of an explosion-proof cylinder of an explosion-proof device of a compressed hydrogen dispenser according to the present invention;

fig. 3 is the utility model provides an explosion-proof equipment's of compressed hydrogen gas dispenser gas entrainment pipeline and intake-tube connection sketch map.

In the figure: the gas filling device comprises a gas filling machine body 1, an exhaust pipe 2, an air inlet pipe 3, an anti-explosion cylinder 4, a sealing gas cylinder 5, an electromagnetic control valve 6, a gas filling pipeline 7, a U-shaped frame 8, a storage battery 9, a gas collecting box 10, a protective sleeve 11, a sealing ring 12, a sealing connecting piece 13, a clamping ring 14, a fixing ring 15, a clamping flap 16, a travel switch 17, a push rod 18, a return spring 19, a piston 20, a gas release pipe 21 and a sealing plug 22.

Detailed Description

The following description is presented to disclose the invention so as to enable any person skilled in the art to practice the invention. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

As shown in fig. 1-3, the explosion-proof device of the compressed hydrogen gas dispenser comprises a gas dispenser body 1, wherein an exhaust pipe 2 and an air inlet pipe 3 are respectively installed at two sides of the gas dispenser body 1, an air filling pipeline 7 is horizontally arranged at one end of the air inlet pipe 3, the air inlet pipe 3 is fixedly connected with the air filling pipeline 7 through a sealing connecting piece 13, an explosion-proof cylinder 4 is arranged at the outer side of the sealing connecting piece 13, two ends of the explosion-proof cylinder 4 are respectively connected with the air inlet pipe 3 and the air filling pipeline 7 through a sealing mechanism, the sealing mechanism comprises a sealing ring 12 sleeved at the outer side of the air inlet pipe 3 or the air filling pipeline 7, a plurality of annular grooves are symmetrically arranged at two sides of the sealing ring 12, a fixing ring 15 is fixedly connected at the end part of the explosion-proof cylinder 4 corresponding to the sealing ring 12, the, the inner sides of the clamping flaps 16 are abutted against the outer surface of the sealing ring 12, the outer sides of the clamping flaps 16 are clamped with the clamping rings 14 together, the end part of the explosion-proof cylinder 4 outside the fixing ring 15 is fixedly connected with a protecting sleeve 11, the protecting sleeve 11 and the explosion-proof cylinder 4 are of an integral structure, and a gap is reserved between the protecting sleeve 11 and the fixing ring 15; through setting up sealing connecting piece 13, thereby can carry out zonulae occludens with intake pipe 3 and gas filling pipeline 7, through setting up sealing washer 12, thereby can increase the leakproofness between explosion-proof section of thick bamboo 4 and intake pipe 3 and the gas filling pipeline 7, simultaneously through setting up solid fixed ring 15, thereby can tentatively fix sealing washer 12, again through setting up a plurality of card lamella 16 and rand 14, thereby can fasten the installation to sealing washer 12, avoid sealing washer 12 the slip phenomenon to appear, and through seting up the ring channel in sealing washer 12 both sides, thereby can increase sealing washer 12's sealing performance.

The bottom of the explosion-proof cylinder 4 is provided with a self-closing device, the self-closing device comprises a gas collecting box 10 fixedly arranged at the bottom of the explosion-proof cylinder 4, the explosion-proof cylinder 4 is communicated with the gas collecting box 10, one end of the gas collecting box 10 is horizontally communicated with a sealing gas cylinder 5, a piston 20 is slidably arranged in the sealing gas cylinder 5, one end of the piston 20 far away from the gas collecting box 10 is horizontally connected with a push rod 18, the push rod 18 extends to the outside of the sealing gas cylinder 5, a return spring 19 is sleeved outside the push rod 18 between the piston 20 and the end of the sealing gas cylinder 5, a rubber pad is bonded at one end of the push rod 18 far away from the piston 20, a U-shaped frame 8 is fixedly connected at the end of the gas collecting box 10 outside the sealing gas cylinder 5, a travel switch 17 is arranged at a position corresponding to the push rod 18, the travel switch, the electromagnetic control valve 6 is fixedly arranged on the gas filling pipeline 7; the leaked gas can be collected through the explosion-proof cylinder 4 and the gas collection box 10, when the gas in the explosion-proof cylinder 4 and the gas collection box 10 gradually increases, the piston 20 is pushed to move towards the outside of the sealing cylinder 5, so that the push rod 18 is contacted with the travel switch 17, the storage battery 9 is communicated with the electromagnetic control valve 6, the electromagnetic control valve 6 is electrified to work to seal the gas filling pipeline 7, the gas filling work to the gas filling machine body 1 is forbidden, and the gas leakage is reduced.

One end of the gas collecting box 10 far away from the sealing gas cylinder 5 is horizontally communicated with a gas release pipe 21, and the inner part of the gas release pipe 21 is in threaded connection with a sealing plug 22; through setting up the snuffle 21 to can excrete the inside leakage gas who collects of gas collection box 10, simultaneously through setting up sealing plug 22, thereby can seal the jam with snuffle 21, ensure the leakproofness of gas collection box 10.

The utility model discloses: at first through sealing mechanism with explosion-proof section of thick bamboo 4 zonulae occludens in the intake pipe 3 and the gas entrainment pipeline 7 outside to this guarantees that the inside gas of explosion-proof section of thick bamboo 4 can not appear leaking the phenomenon, effectively improves the safety in utilization of this device, and the rethread sets up the self-closing device, thereby when the inside leakage gas of collecting of explosion-proof section of thick bamboo 4 was too much, can block gas entrainment pipeline 7 automatically, forbids to carry out gas entrainment work to gas entrainment organism 1, reduces gaseous leakage.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An explosion-proof device of a compressed hydrogen gas filling machine comprises a gas filling machine body (1), wherein an exhaust pipe (2) and an air inlet pipe (3) are respectively installed on two sides of the gas filling machine body (1), an air filling pipeline (7) is horizontally arranged at one end of the air inlet pipe (3), the air inlet pipe (3) is fixedly connected with the air filling pipeline (7) through a sealing connecting piece (13), the explosion-proof device is characterized in that an explosion-proof cylinder (4) is arranged on the outer side of the sealing connecting piece (13), two ends of the explosion-proof cylinder (4) are connected with the air inlet pipe (3) and the air filling pipeline (7) through a sealing mechanism, a self-closing device is arranged at the bottom of the explosion-proof cylinder (4) and comprises a gas collecting box (10) fixedly installed at the bottom of the explosion-proof cylinder (4), the explosion-proof cylinder (4) is communicated with the gas collecting box (10), one end of the gas collecting box (10, the inside slidable mounting of sealed inflator (5) has piston (20), the one end horizontally connected with push rod (18) of gas collection box (10) is kept away from in piston (20), push rod (18) extend to sealed inflator (5) outside, just sealed inflator (5) outside gas collection box (10) tip fixedly connected with U type frame (8), install travel switch (17) on U type frame (8) and push rod (18) correspond the position, travel switch (17) are connected with battery (9) and solenoid electric valve (6) respectively through the wire, battery (9) fixed mounting is in the gas collection box (10) outside, solenoid electric valve (6) fixed mounting is on gas filling pipeline (7).

2. The explosion-proof device of the compressed hydrogen dispenser according to claim 1, wherein the sealing mechanism comprises a sealing ring (12) sleeved on the outer side of the air inlet pipe (3) or the air dispensing pipeline (7), a plurality of annular grooves are symmetrically formed in both sides of the sealing ring (12), a fixing ring (15) is fixedly connected to the end portion of the explosion-proof cylinder (4) corresponding to the sealing ring (12), the sealing ring (12) is inserted into the fixing ring (15), a plurality of clamping flaps (16) are equidistantly connected to one end, away from the explosion-proof cylinder (4), of the fixing ring (15) in the circumferential direction, the inner sides of the clamping flaps (16) are abutted to the outer surface of the sealing ring (12), and a plurality of clamping rings (14) are clamped together on the outer sides of the clamping flaps (16).

3. The explosion-proof device of compressed hydrogen dispenser according to claim 2, wherein the end of the explosion-proof cylinder (4) outside the fixing ring (15) is fixedly connected with a protecting sleeve (11), the protecting sleeve (11) and the explosion-proof cylinder (4) are integrated and a gap is left between the protecting sleeve (11) and the fixing ring (15).

4. The explosion-proof device of compressed hydrogen inflator according to claim 1, characterized in that the outside of the push rod (18) between the piston (20) and the end of the sealed cylinder (5) is sleeved with a return spring (19), and a rubber pad is bonded to the end of the push rod (18) far away from the piston (20).

5. The explosion-proof device of a compressed hydrogen dispenser according to claim 1, wherein one end of the gas collecting box (10) far away from the sealing gas cylinder (5) is horizontally communicated with a gas release pipe (21), and the inside of the gas release pipe (21) is connected with a sealing plug (22) by screw thread.