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Connecting and sealing structure of valve body and gas cylinder

A sealing structure and gas cylinder technology, which are applied in the directions of engine sealing, gas/liquid distribution and storage, and container discharge methods, etc., can solve the problems that it is difficult to completely seal the gas cylinder and the valve body, and the sealing structure is not mentioned.

Inactive Publication Date: 2013-08-14
BEIJING JONTON HYDROGEN TECH
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

The current connection structure is a face-sealed connection method, and the existing problem is that it is difficult to achieve a complete seal between the gas cylinder and the valve body, especially under high pressure conditions
[0009] The above five patents are not the connection and sealing structure between the gas cylinder and the valve, especially none of them mention the sealing structure

Method used

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  • Connecting and sealing structure of valve body and gas cylinder

Examples

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Embodiment Construction

[0015] The connection sealing structure provided by the present invention includes: gas cylinder mouth 1, linear seal 2, O-ring I seal 3, thread structure 4, aluminum pad (or oxygen-free copper pad) seal 5, O-ring II seal 6 and valve body 7.

[0016] The specific embodiment of the present invention is: linear seal 2, O-ring I seal 3, thread structure 4, aluminum pad (or oxygen-free copper pad) seal 5, O-ring II seal 6 and valve body 7 are made as a whole, The linear seal 2 and the O-ring I seal 3 are on the conical surface, and the inner side of the gas cylinder mouth 1 is matched with the thread of the thread structure 4. The position corresponding to the linear seal 2 is also a conical surface structure, but the two conical surface structures The taper is different, the gas cylinder and the valve body are connected together through threaded connection, O-ring I seal 3 and O-ring II seal 6 are used as two soft seals, linear seal 2 and aluminum gasket (or oxygen-free copper ga...

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Abstract

The invention relates to a connecting and sealing structure of a valve body and a gas cylinder, which is suitable for sealing connection between all gas cylinders and valve bodies, and is particularly suitable for sealing connection between a gas cylinder with a gas pressure of higher than 20MPa and a valve body. The sealing structure and the valve body are manufactured into an integral body in advance, the inner side of a gas cylinder port is matched with a conical surface structure and a screw structure of the connecting and sealing structure, the valve body is connected with the gas cylinder through the screw structure, and the complete sealing connection between the valve body and the gas cylinder is realized through two soft seals and two hard seals. The connecting and sealing structure can be used in an application environment area with large difference in temperature, and can be used for the sealing connection between the valve bodies and the gas cylinders, which are made of different materials.

Description

technical field [0001] The invention relates to a connection and sealing structure for connecting gas cylinders and valve bodies, which is suitable for the sealing connection between all gas cylinders and valve bodies, especially for the sealing connection between gas cylinders and valve bodies with a gas pressure above 20MPa. Background technique [0002] In industrial production and various scientific experiments, different types of gases are used. These gases are stored in corresponding gas storage containers, usually in pressure gas cylinders. In actual use, in order to meet the requirements of measurement and control, etc. , It is necessary to connect valve bodies such as pressure reducing valves and solenoid valves to the gas cylinder, and the sealing and safety of the connection structure between the valve body and the gas cylinder have a direct impact on the safety of use and work efficiency. The current connection structure is a face-sealed connection method, and th...

Claims

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Application Information

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IPC IPC(8): F17C13/04F16J15/06
Inventor 张立芳
Owner BEIJING JONTON HYDROGEN TECH
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