CN217654692U

CN217654692U - Hydrogen tank leakproofness detection device

Info

Publication number: CN217654692U
Application number: CN202221417257.3U
Authority: CN
Inventors: 高圣年; 朱延忠; 向宾宾; 李雅剑
Original assignee: Yidu Xingye Industry And Trade Co ltd
Current assignee: Yidu Xingye Industry And Trade Co ltd
Priority date: 2022-06-08
Filing date: 2022-06-08
Publication date: 2022-10-25
Anticipated expiration: 2032-06-08

Abstract

A device for detecting the tightness of a hydrogen tank comprises a first sealing plate, a second sealing plate, a gas collecting hood and a detection tank, wherein the first sealing plate is arranged at the upper end of a hydrogen tank body and mutually clamps the tank wall; the utility model discloses the gas tightness of monitoring hydrogen gas jar that can be quick and in time get rid of the potential safety hazard, device simple structure, easy dismounting can simplify workman's intensity of labour and improve detection efficiency.

Description

Hydrogen tank leakproofness detection device

Technical Field

The utility model belongs to the technical field of gas pitcher check out test set, in particular to hydrogen gas jar leakproofness detection device.

Background

At normal temperature and pressure, hydrogen is a gas which is extremely easy to burn, colorless, transparent, odorless, tasteless and insoluble in water. Hydrogen is the least dense gas known in the world, and has a density of only 1/14 of that of air, i.e., at 0 ℃ and one standard atmosphere, the density of hydrogen is 0.089g/L. Hydrogen is the smallest relative molecular mass species and is primarily used as a reducing agent.

Hydrogen is usually stored in a hydrogen tank, and the requirement on the tightness of the hydrogen tank is particularly high because the hydrogen has the danger of flammability and explosiveness, and a device for detecting the tightness of the hydrogen tank is not available in the market at present, and a large-scale safety accident can be caused once the hydrogen tank body leaks.

Disclosure of Invention

In view of the technical problem that the background art exists, the utility model provides a hydrogen tank leakproofness detection device, the gas tightness of monitoring hydrogen tank that the device can be quick and in time get rid of the potential safety hazard, device simple structure, easy dismounting can simplify workman's intensity of labour and improve detection efficiency.

In order to solve the technical problem, the utility model discloses a following technical scheme has been taken and has been realized:

the utility model provides a hydrogen jar leakproofness detection device, is including first closing plate, second closing plate, gas collecting channel and detection jar, and first closing plate setting is in hydrogen jar body upper end department and the tight jar wall of mutual clamp, and the second closing plate is connected to the up end of first closing plate, and the gas collecting channel is connected to the up end of second closing plate, the gas collecting channel covers the pneumatic valve of hydrogen jar body top department completely, and the top of gas collecting channel communicates first air duct, and the other end of first air duct passes through reducing device intercommunication second air duct, and the other end intercommunication detection jar of second air duct.

In the preferred scheme, first closing plate is including arc splint, two and the tight hydrogen jar body of common clamp about arc splint includes, and arc splint's lateral part is equipped with the riser and through a fastening bolt interconnect, and arc splint's inboard is equipped with the draw-in groove, is provided with gasbag and sealing washer in the draw-in groove, the intercommunication has the gas tube and stretches out the arc splint outside on the gasbag, and the up end of arc splint sets up threaded hole.

In the preferred scheme, the second sealing plate comprises a fastening ring, threaded holes with the same aperture are correspondingly formed in the fastening ring, the second fastening bolt penetrates through the threaded holes to connect the arc-shaped clamping plate and the fastening ring, a sealing gasket is padded at the contact surface of the arc-shaped clamping plate and the fastening ring, and the upper end face of the fastening ring is fixedly connected with the lower port of the gas collecting hood.

In the preferred scheme, the reducing device is including threaded joint and threaded sleeve, threaded joint is linked together with first air duct, and threaded sleeve is linked together with the second air duct, and the pipe diameter of first air duct is greater than the pipe diameter of second air duct, and threaded joint and threaded sleeve threaded connection, threaded joint and threaded sleeve's contact surface department are equipped with sealed cushion.

In the preferred scheme, the detection tank comprises a tank shell, a liquid injection port is arranged on the upper end face of the tank shell, an exhaust pipe is communicated with the side wall of the tank shell, and a second air duct extends into the tank shell from the upper end face of the tank shell.

This patent can reach following beneficial effect:

1. the device can accurately measure whether the gas leakage fault occurs in the hydrogen tank body or not by arranging the detection device in the area with the weakest sealing property at the top of the hydrogen tank, can quickly find the hidden danger of gas leakage by timely checking, and avoids large-scale safety accidents;

2. this device simple structure, easy dismounting has also improved detection efficiency when having simplified the flow of detection achievement, is detachable connection between each part, can disassemble when the device is idle and accomodate, does not occupy storage space.

Drawings

The invention will be further explained with reference to the following figures and examples:

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a sectional view of the overall structure of the present invention;

FIG. 3 is a schematic view of the disassembled structure of the present invention;

FIG. 4 is an enlarged and disassembled view of the sealing device of the present invention;

fig. 5 is an enlarged schematic view of the detection device of the present invention.

In the figure: the gas detection device comprises a hydrogen tank body 1, a first sealing plate 2, an arc-shaped clamping plate 201, a threaded hole 202, a vertical plate 203, an air bag 204, a first fastening bolt 205, an inflation tube 206, a clamping groove 207, a second sealing plate 3, a sealing washer 301, a fastening ring 302, a second fastening bolt 303, a first gas guide tube 4, a reducing device 5, a threaded joint 501, a threaded sleeve 502, a sealing rubber gasket 503, a second gas guide tube 6, a detection tank 7, a tank body shell 701, a liquid injection port 702, an exhaust pipe 703 and a gas collecting hood 8.

Detailed Description

As shown in fig. 1 and fig. 2, a device for detecting the tightness of a hydrogen tank comprises a first sealing plate 2, a second sealing plate 3, a gas-collecting hood 8 and a detection tank 7, wherein the first sealing plate 2 is arranged at the upper end of the hydrogen tank 1 and clamps the tank walls mutually, the upper end surface of the first sealing plate 2 is connected with the second sealing plate 3, the upper end surface of the second sealing plate 3 is connected with the gas-collecting hood 8, the gas-collecting hood 8 completely covers an air valve at the top end of the hydrogen tank 1, the top of the gas-collecting hood 8 is communicated with a first gas-guide tube 4, the other end of the first gas-guide tube 4 is communicated with a second gas-guide tube 6 through a diameter-changing device 5, and the other end of the second gas-guide tube 6 is communicated with the detection tank 7;

after hydrogen is filled in the hydrogen tank body 1, faults such as air leakage and the like easily occur due to the structure of the switch valve at the top of the switch valve, when the device works, the switch valve can be fixed near the valve at the top of the hydrogen tank body 1 through the first sealing plate 2, the gas collecting hood 8 can be connected with the first sealing plate 2 in a sealing manner through the second sealing plate 3, the gas collecting hood 8 is connected above the hydrogen tank body 1 in a covering manner, once air leakage accidents occur on the valve at the top of the tank body, the gas collecting hood 8 can collect leaked gas and transmit the leaked gas to the detection tank 7 for detection, and then whether the air leakage occurs on the hydrogen tank body 1 or not can be judged in time and potential safety hazards can be investigated.

Preferably, as shown in fig. 3, the first sealing plate 2 includes an arc-shaped clamping plate 201, the arc-shaped clamping plate 201 includes a left block and a right block, which together clamp the hydrogen tank 1, a vertical plate 203 is disposed on a lateral portion of the arc-shaped clamping plate 201 and connected to each other through a first fastening bolt 205, a clamping groove 207 is disposed on an inner side of the arc-shaped clamping plate 201, an air bag 204 and a sealing ring are disposed in the clamping groove 207, the air bag 204 is communicated with an inflation tube 206 and extends out of the arc-shaped clamping plate 201, and a threaded hole 202 is disposed on an upper end surface of the arc-shaped clamping plate 201;

when the fixing device is needed, the arc-shaped clamping plates 201 are placed on two sides of the hydrogen tank body 1, and the arc-shaped clamping plates 201 can clamp the hydrogen tank body 1 mutually and complete fixing by screwing the fastening bolts 205 on the two sides of the arc-shaped clamping plates 201; the inner wall of the arc-shaped splint 201 is provided with three layers of clamping grooves 207, the upper and lower layers of clamping grooves 207 are filled with sealing rubber cushions, the clamping groove in the middle layer is filled with an air bag 204, the air bag 204 is inflated through an inflation tube 206 and is expanded, so that the inner side of the arc-shaped splint 201 can form a three-layer sealing system, and the sealing performance of the device is ensured.

Preferably, as shown in fig. 4, the second sealing plate 3 includes a fastening ring 302, the fastening ring 302 is correspondingly provided with threaded holes 202 with the same aperture, a second fastening bolt 303 penetrates through the threaded hole 202 to connect the arc-shaped clamping plate 201 and the fastening ring 302, a sealing gasket 301 is padded at the contact surface of the arc-shaped clamping plate 201 and the fastening ring 302, and the upper end surface of the fastening ring 302 is fixedly connected with the lower port of the gas collecting hood 8;

after the first sealing plate 2 is installed, a sealing washer 301 is laid on the upper end surface of the first sealing plate 2, and then the gas collecting hood 8 and the second sealing plate 3 can be connected into a whole through a second fastening bolt 303, so that the sealing performance of the gas collecting hood and the second sealing plate can be ensured.

The preferable scheme is as shown in fig. 5, the reducing device 5 comprises a threaded connector 501 and a threaded sleeve 502, the threaded connector 501 is communicated with the first gas guide pipe 4, the threaded sleeve 502 is communicated with the second gas guide pipe 6, the pipe diameter of the first gas guide pipe 4 is larger than that of the second gas guide pipe 6, the threaded connector 501 is in threaded connection with the threaded sleeve 502, and a sealing rubber gasket 503 is arranged at the contact surface of the threaded connector 501 and the threaded sleeve 502; can reduce the pipe diameter of air duct through this equipment, in case the hydrogen jar body 1 appears slightly revealing, also can guarantee that 6 gas outlet ends of second air duct have sufficient velocity of flow of giving vent to anger, improve detection effect.

Preferably, as shown in fig. 5, the detection tank 7 includes a tank shell 701, a liquid injection port 702 is arranged at the upper end surface of the tank shell 701, an exhaust pipe 703 is communicated with the side wall of the tank shell 701, and a second air duct 6 extends into the tank shell 701 from the upper end surface of the tank shell 701;

detect jar 7 and adopt transparent material preparation to form, the during operation is through annotating liquid mouth 702 and injecting the liquid that has the colour and not having the gas outlet end of second air duct 6 in to tank body shell 701, in case tank body shell 701 takes place to reveal, the gas of revealing can be discharged by 6 gas outlet ends of second air duct through collecting and conducting, because the liquid in tank body shell 701 does not have the gas outlet end of second air duct 6, when gaseous from 6 discharges of second air duct, can be at detection jar 7 blister, so that the measurement personnel in time discover and remove hidden danger.

The above-mentioned embodiments are merely preferred embodiments of the present invention, and should not be considered as limitations of the present invention, and the protection scope of the present invention should be defined by the technical solutions described in the claims, and includes equivalent alternatives of technical features in the technical solutions described in the claims. Namely, equivalent alterations and modifications within the scope of the invention are also within the scope of the invention.

Claims

1. The utility model provides a hydrogen tank leakproofness detection device, including first closing plate (2), second closing plate (3), gas collecting channel (8) and detection jar (7), its characterized in that: first closing plate (2) set up in the hydrogen jar body (1) upper end department and the tight jar wall of mutual clamp, and second closing plate (3) are connected to the up end of first closing plate (2), and gas collecting channel (8) are connected to the up end of second closing plate (3), gas collecting channel (8) cover the pneumatic valve of the hydrogen jar body (1) top department completely, and the top of gas collecting channel (8) communicates first air duct (4), and the other end of first air duct (4) passes through reducing device (5) and communicates second air duct (6), and the other end intercommunication of second air duct (6) detects jar (7).

2. The hydrogen tank sealability detection apparatus according to claim 1, wherein: first closing plate (2) is including arc splint (201), arc splint (201) are including controlling two and press from both sides tight hydrogen tank body (1) jointly, and the lateral part of arc splint (201) is equipped with riser (203) and through first fastening bolt (205) interconnect, and the inboard of arc splint (201) is equipped with draw-in groove (207), is provided with gasbag (204) and sealing washer in draw-in groove (207), the intercommunication has gas tube (206) and stretches out arc splint (201) the outside on gasbag (204), and screw hole (202) have been seted up to the up end of arc splint (201).

3. The hydrogen tank sealability detection apparatus according to claim 2, wherein: the second sealing plate (3) comprises a fastening ring (302), the fastening ring (302) is correspondingly provided with threaded holes (202) with the same aperture, a second fastening bolt (303) penetrates through the threaded holes (202) to connect the arc-shaped clamping plate (201) and the fastening ring (302) with each other, a sealing gasket (301) is padded at the contact surface of the arc-shaped clamping plate (201) and the fastening ring (302), and the upper end surface of the fastening ring (302) is fixedly connected with the lower port of the gas collecting hood (8).

4. The hydrogen tank sealability detection apparatus according to claim 1, wherein: reducing device (5) is including threaded joint (501) and threaded sleeve (502), threaded joint (501) are linked together with first air duct (4), and threaded sleeve (502) are linked together with second air duct (6), and the pipe diameter of first air duct (4) is greater than the pipe diameter of second air duct (6), and threaded joint (501) and threaded sleeve (502) threaded connection, the contact surface department of threaded joint (501) and threaded sleeve (502) is equipped with sealed cushion (503).

5. The hydrogen tank sealability detection apparatus according to claim 1, wherein: the detection tank (7) comprises a tank shell (701), a liquid injection port (702) is formed in the upper end face of the tank shell (701), an exhaust pipe (703) is communicated with the side wall of the tank shell (701), and a second air duct (6) extends into the tank shell (701) from the upper end face of the tank shell (701).