Sealing Structure of High Pressure Composite Vessel and High Pressure Composite Vessel

Abstract

The invention discloses a sealing structure of a high-pressure composite container and a high-pressure composite container, wherein the sealing structure includes a metal end and a pressure-bearing structure; wherein, the metal end is provided with a sealing part, and the sealing part is provided with a plane sealing structure After the sealing part extends into the plastic liner of the high-pressure composite container, the flat sealing structure is sealed against the inner wall of the plastic liner; the pressure-bearing structure is fixedly sleeved on the metal end, and the pressure-bearing structure is pressed against the plastic On the outer wall of the inner tank. The sealing structure of the high-pressure composite container provided by the embodiment of the present invention and the high-pressure composite container can make up for the lack of roughness on the plastic liner through the self-deformation of the plane sealing structure, thereby ensuring the sealing of the joint between the metal end and the plastic liner Sex, and through the cooperation of the pressure-bearing structure and the metal end, the loosening of the metal end is prevented and the sealing is guaranteed.

Description

technical field [0001] The invention relates to a composite container, in particular to a sealing structure of a high-pressure composite container and a high-pressure composite container. Background technique [0002] At present, a large number of high-pressure containers are widely used in daily life. Traditional pure metal or metal-lined composite containers have the problem of large weight and are not easy to transport; and the higher the storage pressure, the more complicated the production process of the metal-plastic liner, and the cost The higher, there is also the risk of being corroded by high-pressure gas. In order to meet the requirements of lightweight, high-pressure plastic liner composite containers are produced. Due to the characteristics of plastics, this type of product has superior performances such as corrosion resistance, fatigue resistance, and light weight. Compared with pure metal or metal-lined composite containers, the guarantee of the sealing perfo...

AI Technical Summary

Problems solved by technology

Compared with pure metal or metal-lined composite containers, the guarantee of the sealing performance of high-pressure plastic-lined composite containers is more stringent. Because the surface roughness of the plastic liner after blow molding is unstable, it is easy to reduce the distance between the plastic liner and the metal end. In the process of repeated use, the connection between the plastic liner and the metal end will loosen, and the sealing performance will decrease. At the same time, it will easily lead to local stress concentration on the plastic liner, reducing the fatigue strength

Images