Nonmetallic liner fully wrapped composite air cylinder and manufacturing method thereof

Abstract

The invention belongs to the mechanical field of pressure air cylinders and discloses a nonmetallic liner fully wrapped composite air cylinder and a manufacturing method thereof. The air cylinder comprises a nonmetallic liner assembly (1) and a composite material layer (6), wherein the nonmetallic liner assembly (1) comprises a nonmetallic liner (2) and a valve seat assembly (3); the composite material layer (6) is wound on the outer surface of the nonmetallic liner (2) through a fully wrapped manner; the valve seat assembly (3) comprises a metallic valve seat (4) and a nonmetallic valve seat (5); the metallic valve seat (4) and the nonmetallic valve seat (5) are subjected to injection molding; and the nonmetallic valve seat (5) and the nonmetallic liner (2) are welded together. The composite air cylinder disclosed by the invention satisfies reasonable stress distribution so that the composite air cylinder has lasting good airtight performance and safety performance.

Description

technical field [0001] The invention belongs to the field of pressure gas cylinder machinery, and relates to a composite gas cylinder and its manufacturing technology; in particular, it relates to a fully wound composite gas cylinder with a non-metallic liner and a manufacturing method thereof. Background technique [0002] Overcapacity in ore mining and metal smelting, excessive consumption of energy causes air pollution and pollutes the environment. It is imperative to limit the development of this type of industry, so composite materials that replace metal products and are more energy-saving and environmentally friendly have emerged as the times require. [0003] In the field of pressure gas cylinders, steel gas cylinders or steel liner hoop-wound gas cylinders in the prior art are heavy in weight, and aluminum liner carbon fiber fully wound composite gas cylinders are high in cost and narrow in application range, all of which have relatively large limitations. sex. In ...

AI Technical Summary

Problems solved by technology

There are two main types of non-pressure-bearing liner design and manufacture: one is the non-pressure-bearing metal liner, because the non-pressure-bearing metal liner is easy to corrode and has a low service life, this type of product is not conducive to popularization and development; the other is It is a non-pressure-bearing non-metallic liner. The non-metallic liner has the characteristics of strong corrosion resistance and long service life, but it is technically difficult to deal with the interface with the metal and the connection of the composite winding layer.

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