Plastic liner carbon fiber full-wound hydrogen storage bottle opening structure

Abstract

The invention discloses a plastic liner carbon fiber full-wound hydrogen storage bottle opening structure. The structure comprises a metal bottle opening mounted in a plastic liner bottle opening; themetal bottle opening consists of a metal annular shell and a metal annular lining; the metal annular shell tightly sleeves the plastic liner bottle opening; a cover type pressing pin bonded with a plastic liner is arranged at the inner end of the metal annular shell; the metal annular lining is formed by coaxial connection of a connecting section and a sealing section; the sealing section of themetal annular lining is inserted in the plastic liner bottle opening, and is in interference fit with the plastic liner bottle opening; a sealing groove is at least formed in the outer ring side wallof the sealing section; each sealing groove is provided with an O-shaped ring and a retainer ring in a sleeved mode; the connecting section of the metal annular lining is in threaded connection with the outer end of the metal annular shell through an external thread; an internal thread is arranged on the inner ring side wall of the connecting section; and the internal and external threads on the connecting section are arranged with opposite rotating directions. The hydrogen storage bottle opening structure is excellent in sealing performance.

Description

technical field [0001] The invention relates to the field of hydrogen storage equipment, in particular to a bottle mouth structure of a plastic liner carbon fiber fully wound hydrogen storage cylinder. Background technique [0002] Carbon fiber fully wound hydrogen storage cylinder with plastic liner is a portable hydrogen storage device. This kind of hydrogen storage cylinder is mainly used to provide hydrogen for hydrogen energy vehicles. The structure of the carbon fiber fully wound hydrogen storage cylinder with plastic liner usually includes: plastic inner The bottle mouth of the plastic liner is usually provided with a high-strength metal bottle mouth. The metal bottle mouth is usually used to connect with the bottle mouth valve. The outer side of the plastic liner is wrapped with carbon fiber material, and the outer side of the carbon fiber material is wrapped with Fiberglass material. There is a utility model patent with the application number CN201721786654.7, whic...

AI Technical Summary

Problems solved by technology

There is a utility model patent with the application number CN201721786654.7, which discloses a bottle mouth and tail structure of a high-pressure gas storage cylinder. The metal bottle mouth and the plastic liner in this bottle mouth and tail structure The bottle mouth adopts threaded connection. In the case of high pressure, the threaded connection may not be tightly sealed. Therefore, during the hydrogen storage process, hydrogen can easily pass through the connection and joint between the metal bottle mouth and the plastic liner bottle mouth. Leak out

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