CN210567482U

CN210567482U - Hydrogen cylinder structure capable of preventing gas leakage

Info

Publication number: CN210567482U
Application number: CN201921003778.2U
Authority: CN
Inventors: 庄英俊
Original assignee: Gansu Junmao New Material Technology Co Ltd
Current assignee: Gansu Junmao New Material Technology Co Ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-05-19
Anticipated expiration: 2029-07-01

Abstract

The utility model provides a hydrogen cylinder structure for preventing gas leakage, which comprises a hydrogen cylinder, wherein the top end of the hydrogen cylinder is provided with an air inlet pipe, the bottom of the air inlet pipe extends to the inner wall of the top end of the hydrogen cylinder, and a sealing ring is arranged at the joint of the bottom of the air inlet pipe and the top end of the hydrogen cylinder; a first internal thread is arranged in the center of the top end of the air inlet pipe, a gas valve is arranged at the lower end of the first internal thread, an air outlet pipe is arranged on one side of the bottom of the air inlet pipe, an air leakage prevention device is arranged at the air outlet of the air outlet pipe and comprises a connecting nozzle assembly, a sealing assembly is arranged at the upper end of the connecting nozzle assembly, and a first sealing gasket is arranged between the two ends of the bottom of the sealing assembly and the upper surface of the connecting nozzle assembly; the lower end of the connecting nozzle component is provided with an elastic sealing component. The utility model discloses structural design is simple, and convenient operation has guaranteed the leakproofness of outlet duct department through being equipped with gas leakage prevention device.

Description

Hydrogen cylinder structure capable of preventing gas leakage

Technical Field

The utility model relates to a hydrogen cylinder leak protection technical field mainly relates to a hydrogen cylinder structure of gas leakage prevention.

Background

With the increasing demand of human beings on energy, non-renewable energy sources such as fossil fuel and the like are about to face the danger of exhaustion, and the influence of the fossil fuel on the environment cannot be ignored, so that the development and utilization of new energy sources become more and more urgent requirements; hydrogen is a new energy source, is a recognized clean energy source in the world, and is more and more concerned by people.

Meanwhile, hydrogen is a flammable and explosive gas, and when the flammable and explosive gas is mixed with fluorine, chlorine, oxygen, carbon monoxide and air, the gas is generally compressed and stored in a special hydrogen cylinder, so that the pressure in the hydrogen cylinder is often higher, and therefore, in the process of storage and use of the hydrogen cylinder, if the temperature and the pressure in the hydrogen cylinder are too high due to the influence of the environment, the explosion can be caused, and safety accidents are caused.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a hydrogen cylinder structure for preventing gas leakage, which is used for solving the technical problem provided in the background technology.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a hydrogen cylinder structure for preventing gas leakage comprises a hydrogen cylinder, wherein the top end of the hydrogen cylinder is provided with a gas inlet pipe, the bottom of the gas inlet pipe extends to the inner wall of the top end of the hydrogen cylinder, and a sealing ring is arranged at the joint of the bottom of the gas inlet pipe and the top end of the hydrogen cylinder;

a first internal thread is arranged in the center of the top end of the air inlet pipe, a gas valve is arranged at the lower end of the first internal thread, an air outlet pipe is arranged on one side of the bottom of the air inlet pipe, an air leakage prevention device is arranged at the air outlet of the air outlet pipe and comprises a connecting nozzle assembly, a sealing assembly is arranged at the upper end of the connecting nozzle assembly, and a first sealing gasket is arranged between the two ends of the bottom of the sealing assembly and the upper surface of the connecting nozzle assembly;

the lower end of the connecting nozzle component is provided with an elastic sealing component.

Preferably, the lower end of the air valve is provided with a flow meter, and the end part of the flow meter extends to the inner wall of the air inlet pipe.

Preferably, one side of the air inlet pipe is provided with a hydrogen content detector, the hydrogen content detector is connected with the flowmeter, and the connection mode is wire connection.

Preferably, one side of keeping away from in the outlet pipe connect the mouth subassembly is equipped with the second internal thread, just connect the mouth subassembly through the second internal thread is connected fixedly with external device.

Preferably, the bottom of the air inlet pipe is provided with an external thread, and the air inlet pipe is meshed with the hydrogen cylinder through the external thread.

Preferably, the width of the first sealing washer is greater than that of the sealing assembly, and a second sealing washer is arranged at the bottom of the first sealing washer.

Preferably, the elastic sealing component is composed of a spring and a sealing block, the upper surface of the sealing block is in contact with the lower surface of the connecting nozzle component, and the sealing block is connected with the air outlet pipe through the spring.

Compared with the prior art, the beneficial effects of the utility model are that:

the external device enters the air outlet pipe through the second internal thread and is meshed with the connecting nozzle assembly, so that the sealing performance of the outlet is ensured; the flow meter is used for detecting the amount of hydrogen entering the hydrogen cylinder through the air inlet pipe and transmitting the detected data to the hydrogen content detector, so that the amount of hydrogen in the cylinder can be monitored in real time, and whether the hydrogen is continuously conveyed or not can be controlled conveniently; the sealing performance of the air outlet pipe is ensured through the first sealing washer and the second sealing washer; the second sealing washer can improve the sealing performance of the contact part of the second sealing washer and the sealing block, and gas leakage is avoided.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

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

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is a schematic view of the internal structure of the intake pipe of the present invention;

fig. 4 is an enlarged view of region B in fig. 3.

Reference numerals: 1-a hydrogen cylinder, 2-an air inlet pipe, 21-a first internal thread, 22-an air outlet pipe, 22 a-a second internal thread, 23-an air valve, 24-an external thread, 3-a sealing ring, 4-a hydrogen content detector, 41-a flowmeter, 5-an air leakage prevention device, 51-an elastic sealing assembly, 51 a-a sealing block, 51 b-a spring, 52-a connecting nozzle assembly, 53-a first sealing washer, 54-a sealing assembly and 55-a second sealing washer.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1-4, an anti-leakage hydrogen cylinder structure includes a hydrogen cylinder 1, an air inlet pipe 2 is disposed at the top end of the hydrogen cylinder 1, the bottom of the air inlet pipe 2 extends to the inner wall of the top end of the hydrogen cylinder 1, and a sealing ring 3 is disposed at the connection position of the bottom of the air inlet pipe 2 and the top end of the hydrogen cylinder 1;

a first internal thread 21 is arranged in the center of the top end of the air inlet pipe 2, a gate valve 23 is arranged at the lower end of the first internal thread 21, an air outlet pipe 22 is arranged on one side of the bottom of the air inlet pipe 2, an air leakage prevention device 5 is arranged at an air outlet of the air outlet pipe 22, the air leakage prevention device 5 comprises a connecting nozzle assembly 52, a sealing assembly 54 is arranged at the upper end of the connecting nozzle assembly 52, and a first sealing washer 53 is arranged between the two ends of the bottom of the sealing assembly 54 and the upper surface of the connecting nozzle assembly 52;

the lower end of the connection mouth assembly 52 is provided with an elastic sealing assembly 51.

Referring to fig. 2, a second internal thread 22a is disposed on a side of the outlet pipe 22 away from the connection nozzle assembly 52, and the connection nozzle assembly 52 is connected and fixed to an external device through the second internal thread 22 a. In this example, the external device is installed by engaging the second internal threads 22a into the outlet tube with the connector nozzle assembly 52, ensuring a hermetic seal.

Referring to fig. 2 again, the bottom of the air inlet pipe 2 is provided with an external thread 24, and the air inlet pipe 2 is engaged with the hydrogen cylinder 1 through the external thread 24. In this embodiment, the air inlet pipe 2 is engaged with the internal thread of the hydrogen cylinder 1 through the external thread 24, and is hermetically connected by the sealing ring 3, so that the sealing performance of the air inlet can be ensured.

Referring to fig. 2 and 3, the lower end of the valve 23 is provided with a flow meter 41, and the end of the flow meter 41 extends to the inner wall of the intake pipe 2; one side of the air inlet pipe 2 is provided with a hydrogen content detector 4, and the hydrogen content detector 4 is connected with the flowmeter 41 in a wire connection mode. In this example, the amount of hydrogen gas entering the hydrogen cylinder 1 is detected by the flow meter 41, and the data is transmitted to the hydrogen content detector 4, ensuring that the amount of hydrogen gas in the cylinder can be monitored in real time.

Referring to fig. 4, the width of the first sealing gasket 53 is greater than that of the sealing assembly 54, and a second sealing gasket 55 is disposed at the bottom of the first sealing gasket 53. In this example, the air outlet of the outlet pipe 22 is sealed by the first sealing gasket 53 and the second sealing gasket 55.

Referring to fig. 4 again, the elastic sealing member 51 is composed of a spring 51b and a sealing block 51a, an upper surface of the sealing block 51a contacts a lower surface of the connection nozzle member 52, and the sealing block 51a is connected to the outlet pipe 22 by the spring 51 b. In this example, the second sealing washer 55 can improve the sealing performance at the contact point with the sealing block 51a, thereby preventing gas leakage.

The utility model discloses a concrete operation as follows:

firstly, hydrogen is conveyed from the air inlet pipe 2 to the hydrogen cylinder 1, the air valve 23 is opened, when the hydrogen passes through the flow meter 41, the flow meter 41 transmits the passing hydrogen quantity to the hydrogen content detector 4, the hydrogen is convenient to monitor and control, and the air valve 23 is closed after the hydrogen is conveyed.

Because the second sealing washer 55 contacts with the sealing block 51a, the sealing performance is ensured, then the second sealing washer 55 is tightly connected with the first sealing washer 53 and then contacts with the sealing assembly 54, and the width of the first sealing washer 53 is larger than that of the sealing assembly 54, so that no gap is formed in the middle, and air leakage is avoided.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents, and thus the embodiments of the invention are intended only as illustrative examples of the invention and no limitation of the invention is intended whatsoever to be construed by the embodiments of the invention.

Claims

1. The utility model provides a hydrogen cylinder structure of gas leakage prevention, including hydrogen cylinder (1), its characterized in that: the top end of the hydrogen cylinder (1) is provided with an air inlet pipe (2), the bottom of the air inlet pipe (2) extends to the inner wall of the top end of the hydrogen cylinder (1), and a sealing ring (3) is arranged at the joint of the bottom of the air inlet pipe (2) and the top end of the hydrogen cylinder (1);

a first internal thread (21) is arranged in the center of the top end of the air inlet pipe (2), a valve (23) is arranged at the lower end of the first internal thread (21), an air outlet pipe (22) is arranged on one side of the bottom of the air inlet pipe (2), an air leakage prevention device (5) is arranged at the air outlet of the air outlet pipe (22), the air leakage prevention device (5) comprises a connecting nozzle assembly (52), a sealing assembly (54) is arranged at the upper end of the connecting nozzle assembly (52), and a first sealing gasket (53) is arranged between the two ends of the bottom of the sealing assembly (54) and the upper surface of the connecting nozzle assembly (52);

the lower end of the connecting nozzle component (52) is provided with an elastic sealing component (51).

2. The hydrogen cylinder structure preventing gas leakage according to claim 1, wherein: the lower end of the air valve (23) is provided with a flow meter (41), and the end part of the flow meter (41) extends to the inner wall of the air inlet pipe (2).

3. The hydrogen cylinder structure preventing gas leakage according to claim 2, wherein: one side of the air inlet pipe (2) is provided with a hydrogen content detector (4), the hydrogen content detector (4) is connected with the flowmeter (41), and the connection mode is wire connection.

4. The hydrogen cylinder structure preventing gas leakage according to claim 1, wherein: one side of the air outlet pipe (22) far away from the connecting nozzle component (52) is provided with a second internal thread (22 a), and the connecting nozzle component (52) is connected and fixed with an external device through the second internal thread (22 a).

5. The hydrogen cylinder structure preventing gas leakage according to claim 1, wherein: the bottom of intake pipe (2) is equipped with external screw thread (24), just intake pipe (2) pass through external screw thread (24) with hydrogen cylinder (1) looks meshing installation.

6. The hydrogen cylinder structure preventing gas leakage according to claim 1, wherein: the width of the first sealing washer (53) is larger than that of the sealing assembly (54), and a second sealing washer (55) is arranged at the bottom of the first sealing washer (53).

7. The hydrogen cylinder structure preventing gas leakage according to claim 1, wherein: the elastic sealing component (51) is composed of a spring (51 b) and a sealing block (51 a), the upper surface of the sealing block (51 a) is in contact with the lower surface of the connecting nozzle component (52), and the sealing block (51 a) is connected with the air outlet pipe (22) through the spring (51 b).