CN214425663U - Gas cylinder with hydrogen leakage monitoring function - Google Patents

Abstract

The utility model relates to a gas cylinder with hydrogen leakage monitoring function belongs to gas cylinder leakage monitoring equipment's technical field. The utility model provides an among the prior art hydrogen leak the difficult problem of noticing. The utility model provides a gas cylinder with hydrogen leakage monitoring function, which comprises a bottle mouth sealing unit and a hydrogen leakage monitoring component; the bottle mouth sealing unit comprises an inner cover and an outer ring, and the inner cover comprises a color development window; the hydrogen leakage monitoring assembly is mounted in the inner cover. The utility model discloses a hydrogen leakage control and simple structure, effect with low costs.

Description

Gas cylinder with hydrogen leakage monitoring function

Technical Field

The utility model relates to a gas cylinder leaks supervisory equipment technical field, especially relates to a gas cylinder with hydrogen leakage monitor function.

Background

At present, the gas cylinder wound by the plastic liner has the characteristics of corrosion resistance, light weight and high strength, and has a good development prospect.

However, during repeated use, the plastic liner and metal end are loose and the seal is degraded, which can lead to reduced sealing performance. Therefore, hydrogen is easy to leak, and when the hydrogen leaks, the hydrogen leakage has the problem that no detection device is arranged and the hydrogen leakage is not easy to detect.

SUMMERY OF THE UTILITY MODEL

In view of the above analysis, the utility model aims at providing a gas cylinder with hydrogen leakage monitor function for there is not detection device when solving among the prior art and taking place hydrogen leakage, is difficult to the problem of noticing.

The purpose of the utility model is mainly realized through the following technical scheme:

the utility model provides a gas cylinder with hydrogen leakage monitoring function, which comprises a bottle mouth sealing unit and a hydrogen leakage monitoring component; the bottle mouth sealing unit comprises an inner cover and an outer ring, and the inner cover comprises a color development window; the hydrogen leakage monitoring assembly is mounted in the inner cover.

Further, the hydrogen leakage monitoring assembly comprises a diffusion surface, a pinhole and a cylinder body.

Further, the pinhole communicates the diffusion surface with the cylinder.

Further, the cylinder includes a colored liquid and a piston.

Further, the piston can push the colored liquid to flow into the diffusion surface through the needle hole.

Further, the outer race includes a sealing platform.

Further, the gas cylinder also comprises an inner container.

Further, the gas cylinder still includes seal assembly, seal assembly includes first sealing washer and second sealing washer.

Further, the first sealing ring is installed between the inner cover and the inner container; the second sealing ring is installed on the sealing platform.

Further, the color development window is arranged above the diffusion surface and used for observing the diffusion surface.

Compared with the prior art, the utility model discloses can realize one of following beneficial effect at least:

1. the utility model provides a safe scheme of life-span monitoring for the bottleneck linking structure of the gas cylinder with leakage risk;

2. through constructing the second airtight space, the energy of the hydrogen leakage monitoring device is completely derived from the pressure change of the second airtight space caused by leakage, the hydrogen leakage monitoring device does not need to be powered, is easy to implement, has low cost and has no selectivity to the loading content of the gas cylinder.

Drawings

FIG. 1 is a top view of the gas cylinder opening device of the present invention;

FIG. 2 is an exploded view of the gas cylinder opening device of the present invention;

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

fig. 4 is a cross-sectional view of the gas cylinder opening device of the present invention;

FIG. 5 is an enlarged view taken at A in FIG. 4;

fig. 6 is a schematic structural view of the inner lid of the present invention;

fig. 7 is a schematic structural diagram of the metal outer ring of the present invention.

Reference numerals:

1-inner container; 11-an inner annular platform; 12-an outer annular platform; 2-a bottle mouth sealing unit; 21-inner cover; 211-a color development window; 212-first bolt hole; 213-a first annular gasket; 214-a second annular gasket; 215-a vent; 22-an outer ring; 221-a third annular gasket; 222-a sealing platform; 223-second bolt hole; 3-a winding layer; 4-a sealing assembly; 41-a first sealing ring; 42-a second seal ring; 5-hydrogen leakage monitoring assembly; 51-a diffusion surface; 52-pinhole; 53-cylinder body; 531-colored liquid; 532-piston.

Detailed Description

Preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

The utility model discloses a concrete embodiment, as shown in fig. 1 to 7, the utility model discloses a gas cylinder with hydrogen leakage monitoring function, including inner bag 1, the sealed unit of bottleneck 2 and winding layer 3, wherein the sealed unit of bottleneck 2 is installed to the bottleneck of inner bag 1, and the sealed unit of bottleneck 2 includes inner cup 21 and outer lane 22, and the installation of laminating of the inside of inner cup 21 and the 1 bottleneck of inner bag, the installation of laminating in the outside of outer lane 22 and the 1 bottleneck of inner bag, inner cup 21 and outer lane 22 pass through bolt fixed connection, and outer lane 22's outside is fixed by the winding layer 3 winding, and outer lane 22 provides the supporting role for winding layer 3.

It should be noted that the outer ring 22 is annularly attached to the outer side of the inner container 1, and the outer ring 22 may be a single piece and integrally sleeved on the mouth of the inner container 1; preferably, the outer race 22 may be multi-segmented into a ring shape.

The winding layer 3 is made of carbon fiber, glass fiber or the like, and preferably, a fiber impregnated with resin or a thread is used to wind the plastic liner to manufacture the fiber.

It should be noted that the utility model provides a pair of gas cylinder with hydrogen leakage monitor function still includes hydrogen leakage monitor subassembly 5, and hydrogen leakage monitor subassembly 5 is installed in inner cup 21.

In this embodiment, when hydrogen takes place to leak, atmospheric pressure increase, hydrogen leakage monitoring subassembly 5 can leak the suggestion afterwards to in monitoring hydrogen leakage condition, thereby improve the security that the gas cylinder used, hydrogen leakage monitoring subassembly 5 utilizes the pressure differential that hydrogen leaked and arouses, need not to supply power, easily implement, with low costs and the reliability is high, is adapted to the gas cylinder of different hydrogen.

The hydrogen leakage monitoring module 5 includes a diffusion surface 51, a pinhole 52 and a cylinder 53, wherein the pinhole 52 connects the diffusion surface 51 and the cylinder 53, the size of the diffusion surface 51 and the cylinder 53 is larger than that of the pinhole 52, and the size of the diffusion surface 51 is larger than that of the cylinder 53.

Further, the cylinder 53 is provided with a colored liquid 531 and a plunger 532, the colored liquid 531 is above the plunger 532, and the colored liquid 531 communicates with the needle hole 52.

In this embodiment, the pressure generated by the leaked hydrogen pushes the piston 532 to move upward, the piston 532 extrudes the colored liquid 531, the colored liquid 531 flows into the diffusion surface 51 through the pinhole 52, the color of the colored liquid 531 is monitored, i.e., the leakage of hydrogen is prompted, and the process is simple, rapid and reliable; the hydrogen leakage monitoring assembly 5 only uses the pressure generated by the leaked hydrogen as energy (without power supply or chemical agent/chemical reaction) to push the colored liquid 531 to flow into the diffusion surface 51, the color can be observed in the diffusion surface 51 to prompt the hydrogen leakage, and the assembly is simple and easy to operate, does not need energy consumption and is simple and convenient to install.

Further, the colored liquid 531 may be a fluid or semi-fluid, such as: mineral grease, or the use of magnetic fluid, and a magnetic plunger, ensures that under normal inversion and vibration conditions, the colored fluid 531 will not flow through the pinhole 52 into the diffusion surface 51 and cause false monitoring.

Further, the inner cover 21 includes a color development window 211, the hydrogen leakage monitoring assembly 5 is installed in the color development window 211, and the color development window 211 observes the colored liquid 531 on the diffusion surface 51 in the hydrogen leakage monitoring assembly 5, that is, the colored liquid 531 can be directly monitored through the color development window 211.

It should be noted that the utility model provides a gas cylinder with hydrogen leakage monitoring function still includes seal assembly 4, and seal assembly 4 includes first sealing washer 41 and second sealing washer 42.

Further, the bottle mouth of the liner 1 comprises an inner annular platform 11 and an outer annular platform 12, and the outer annular platform 12 is higher than the inner annular platform 11.

Further, the inner lid 21 also includes a first annular gasket 213 and a second annular gasket 214, the second annular gasket 214 being larger in size than the first annular gasket 213, the first annular gasket 213 being inside the second annular gasket 214.

In this embodiment, the first annular gasket 213 is closely fitted to the inner annular platform 11, and the first sealing ring 41 is disposed between the first annular gasket 213 and the inner annular platform 11 to form a first airtight space, so as to prevent hydrogen leakage and reinforce the sealing structure; the outboard annular land 12 is in close abutment with the second annular gasket 214.

It should be noted that the outer ring 22 includes a third annular gasket 221 and a sealing land 222, and the third annular gasket 221 is higher than the sealing land 222.

In this embodiment, the outer ring 22 is tightly attached to the outer side of the opening of the inner container 1, the third annular gasket 221 is tightly abutted to the inner cover 21, the sealing platform 222 is located between the third annular gasket 221 and the outer annular platform 12, and the second sealing ring 42 is placed on the sealing platform 222 to form a second airtight space and enhance the airtight structure.

Further, the first airtight space formed by the first sealing ring 41 is formed between the opening of the inner container 1 and the inner cover 21, the second airtight space is formed between the opening of the inner container 1, the inner cover 21 and the outer ring 22 by the second sealing ring 42, the hydrogen leakage monitoring assembly 5 is communicated with the second airtight space, when hydrogen in the gas cylinder leaks from the first airtight space, the gas pressure in the second airtight space rises, at the moment, the hydrogen pushes the piston 532 to move upwards, further pushes the colored liquid 531 to flow into the diffusion surface 51, and the hydrogen leakage can be monitored through the color development window 211.

Preferably, the number of the first sealing rings 41 in the first airtight space can be 1 or more, and the first sealing rings are used for isolating the high-pressure hydrogen leakage in the gas cylinder.

It should be noted that the inner lid 21 further includes a first bolt hole 212, and the outer ring 22 includes a second bolt hole 223.

In this embodiment, the inner cover 21 and the outer ring 22 pass through the first bolt hole 212 and the second bolt hole 223 through bolts to be fixedly connected, the inner cover 21 and the outer ring 22 are fixedly connected, and the bottle opening of the inner container 1 is wrapped, so that the whole device is more stable.

It should be noted that the inner lid 21 further includes a vent hole 215, and the gas cylinder realizes the input and output functions of hydrogen gas through the vent hole 215.

The utility model provides a safe scheme of life-span monitoring for the bottleneck linking structure of the gas cylinder with leakage risk; by constructing the second airtight space, the energy of the hydrogen leakage monitoring device 5 completely comes from the pressure change of the second airtight space caused by leakage, does not need to be supplied with power, is easy to implement, has low cost and has no selectivity to the loading content of the gas cylinder.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims (10)

1. The gas cylinder with the hydrogen leakage monitoring function is characterized by comprising a cylinder opening sealing unit (2) and a hydrogen leakage monitoring assembly (5);

the bottle mouth sealing unit (2) comprises an inner cover (21) and an outer ring (22), wherein the inner cover (21) comprises a color development window (211);

the hydrogen leakage monitoring assembly (5) is mounted in the inner cover (21).

2. A gas cylinder with hydrogen gas leakage monitoring function according to claim 1, characterized in that the hydrogen gas leakage monitoring assembly (5) comprises a diffusion surface (51), a pinhole (52) and a cylinder body (53).

3. A gas cylinder with a hydrogen gas leakage monitoring function according to claim 2, characterized in that the pinhole (52) communicates the diffusion surface (51) with the cylinder body (53).

4. A gas cylinder with hydrogen gas leakage monitoring function according to claim 3, characterized in that the cylinder (53) comprises a colored liquid (531) and a piston (532).

5. A gas cylinder with hydrogen gas leakage monitoring function according to claim 4, characterized in that the piston (532) can push the colored liquid (531) to flow into the diffusion surface (51) through the pinhole (52).

6. A gas cylinder with hydrogen gas leakage monitoring function according to claim 5, characterized in that the outer ring (22) comprises a sealing platform (222).

7. A gas cylinder with hydrogen gas leakage monitoring function according to claim 6, characterized in that the gas cylinder further comprises an inner container (1).

8. A gas cylinder with hydrogen gas leakage monitoring function according to claim 7, characterized in that the gas cylinder further comprises a seal assembly (4), the seal assembly (4) comprising a first seal ring (41) and a second seal ring (42).

9. A gas cylinder with hydrogen gas leakage monitoring function according to claim 8, characterized in that the first seal ring (41) is installed between the inner lid (21) and the inner container (1); the second seal ring (42) is mounted on the seal platform (222).

10. A gas cylinder with hydrogen gas leakage monitoring function according to any one of claims 2-9, characterized in that the coloration window (211) is arranged above the diffusion surface (51), the coloration window (211) being used to observe the diffusion surface (51).

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