Three-dimensionally braided pressure gas bottle and preparation method thereof

Abstract

The invention discloses a three-dimensionally braided pressure gas bottle and a preparation method thereof. The pressure gas bottle comprises a metal liner layer, a medium inlet / outlet and a three-dimensionally braided composite outer layer, wherein the medium inlet / outlet is formed at an opening in one end of the metal liner layer, and the medium inlet / outlet and the metal liner layer form an inner gas bottle layer, so that gas can enter and exit from the metal liner layer through the medium inlet / outlet; the three-dimensionally braided composite outer layer enwraps the inner gas bottle layer; the three-dimensionally braided composite outer layer is formed by repeatedly impregnating and compounding three-dimensionally braided three-dimensional fabric and resin; the three-dimensionally braided three-dimensional fabric sequentially comprises a three-dimensionally braided composite inner layer and a three-dimensionally braided composite surface layer from inside to outside; the three-dimensionally braided composite inner layer and the three-dimensionally braided composite surface layer are reinforced by seaming through a two-dimensionally seaming reinforcing structure. The pressure gas bottle is made of a novel mixed material, adopts a novel structure, can be adapted to different pressure-resistant environments, can be adapted to different application climate environments, and effectively solves a problem of pressure container damage caused by interlayer weakness.

Description

technical field [0001] The invention relates to a pressure vessel with a new material and structure, in particular to a pressure gas cylinder with a three-dimensional weaving and interlayer seam-reinforced composite structure using carbon fiber and other fiber mixed materials. Background technique [0002] Composite material pressure vessels have many advantages such as light weight, corrosion resistance, good rigidity, strong impact resistance, strong designability, predictable early failure, and low damage lethality, etc., and have been widely used in aerospace, ships, automobiles, emergency rescue and lifesaving , healthcare and other fields. [0003] At present, the production of composite pressure vessels is mainly to use high-performance fiber impregnated with resin, then wind longitudinally and hoopwise on the surface of a cylindrical or tubular mold, and then release the mold after curing and molding. The structure of this kind of composite material pressure vessel ...

AI Technical Summary

Problems solved by technology

In terms of structural research and application attempts of composite pressure vessels, the United States has been at the forefront of the world, and a large number of composite material pressure cylinders are used in military aircraft, military warships and other military equipment. So far, in order to solve the demand for lightweight, domestic Many companies are also conducting research on composite material pressure gas cylinders, but the pressure stability, impact resistance and corrosion resistance of pressure vessel gas cylinders are still limited by the winding process, which has also become a key factor in the preparation and design of composite material pressure gas cylinders. Technical Difficulties

[0004] In view of this, it is urgent to find a new structure to solve the problem of poor interlayer mechanical properties of composite pressure gas cylinders, give full play to the overall performance of composite materials, improve the synergistic effect between layers, and improve the pressure resistance of pressure gas cylinders. Strength, fatigue and blast resistance properties

Images