Flexible follow-up lining ring suitable for composite gas cylinder

Abstract

The invention relates to a flexible follow-up lining ring suitable for a composite gas cylinder, and belongs to the technical field of composite gas cylinders. According to the flexible follow-up lining ring, the problem of assembly difficulty of an ultra-thin wall lining is solved, the problem of poor deformation consistency and coordination when two different thin-wall metals are welded togetherand expand is further solved, the rigidity and roundness of the ultra-thin wall lining are ensured, and the spattering generated in the welding process is avoided; and the follow-up deformation of different rigid materials is realized, the deformation reliability is ensured, the expansion crack probability is reduced, and thus the safety of the composite gas cylinder is improved.

Description

technical field [0001] The invention relates to a flexible follower ring suitable for composite material gas cylinders, belonging to the technical field of composite material gas cylinders. Background technique [0002] For the ultra-thin-walled metal lining in composite gas cylinders, especially the large-scale ultra-thin-walled lining, the assembly and welding between the head and the cylinder, and between the cylinder and the cylinder are two difficult processes. The inherent particularity of the structure determines the instability of the lining parts during assembly, which leads to collapse defects easily during welding, or in the case of limited welding penetration, problems such as inability to penetrate the weld seam and serious oxidation, etc., thus It affects the key indicators of gas cylinders (pressure bearing capacity and sealing capacity), and brings difficulties to welding quality and weld evaluation. In addition, the traditional lining ring is usually connec...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the two technical problems of assembly and welding in the ultra-thin-walled inner liner of composite material gas cylinders, the invention provides a flexible follow-up liner suitable for composite material gas cylinders, which is very suitable for ultra-thin-wall inner linings. Lining welding, especially in terms of consistent expansion and deformation, has the advantage of dynamic deformation, which not only solves the problem of difficult assembly of ultra-thin-walled linings, but also solves the problem of consistent deformation when two different thin-walled metals are welded together to expand. The problem of poor compatibility and coordination ensures the rigidity and roundness of the ultra-thin-walled lining, and avoids the spatter generated during the welding process. The flexible follow-up ring realizes the follow-up deformation of different rigid materials and ensures the Reliability, reducing the chance of expansion and cracking, thereby improving the safety of composite gas cylinders

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