Method for producing carbon fiber-completely winded composite gas cylinder with aluminum inner container

Abstract

The invention relates to a method for producing a carbon fiber-completely winded composite gas cylinder with an aluminum inner container. The carbon fiber-completely winded composite gas cylinder with the aluminum inner container has main bearing structures of the aluminum inner container and a carbon fiber completely-winding layer. The carbon fiber completely-winding layer on a cylinder body is prepared by alternately winding longitudinally spirally winding fiber layers and circumferentially winding fiber layers in a laying order designed optimally. Glass fiber layers are winded on the surface of the carbon fiber completely-winding layer and are used as impact resistant protective layers of the carbon fiber-completely winded composite gas cylinder with the aluminum inner container. The carbon fiber-completely winded composite gas cylinder with the aluminum inner container has main technical indexes of a safety factor great than or equal to 3.4 and fatigue cycle number N great than or equal to 10000. The method provided by the invention satisfies reasonable stress field distribution, and guarantees that the carbon fiber-completely winded composite gas cylinder with the aluminum inner container can bear maximum burst pressure under the condition of a minimum fiber use amount, produces cracks located at a cylinder body and does not produce fragments. The method guarantees that the aluminum inner container of the carbon fiber-completely winded composite gas cylinder with the aluminum inner container is always in an elastic deformation state under preset work pressure, and guarantees that the carbon fiber-completely winded composite gas cylinder with the aluminum inner container has lasting and good gas tightness and optimal safety.

Description

technical field [0001] The invention relates to a high-pressure gas cylinder made of composite material, in particular to a composite gas cylinder with an aluminum inner liner and carbon fiber full winding. technical background [0002] The aluminum liner carbon fiber fully wound composite gas cylinder is a new material gas cylinder developed in recent years. In the past, people used steel high-pressure gas cylinders as containers for storing compressed air or oxygen, and high-pressure gas supply parts for respirators. It is also inferior to the carbon fiber full-wound composite gas cylinder with an aluminum liner. When a steel gas cylinder is used for a self-contained positive pressure respirator, the self-weight of the equipment obviously causes inconvenience to the user. In case of an accident, the steel high-pressure gas cylinder ruptures in a sudden fragmentation mode, and fragments will fly out and hurt people. Its safety performance, fatigue life, corrosion resistanc...

AI Technical Summary

Problems solved by technology

In the past, people used steel high-pressure gas cylinders as containers for storing compressed air or oxygen, and high-pressure gas supply parts for respirators. It is also inferior to aluminum liner carbon fiber full-wound composite gas cylinders. When steel gas cylinders are used for self-contained positive pressure respirators, the self-weight of the equipment will obviously cause inconvenience to users.

If a steel high-pressure gas cylinder encounters an accident, its rupture is a sudden fragmentation mode, and fragments will fly out and hurt people. Its safety performance, fatigue life, corrosion resistance, fire resistance and air-holding performance are relatively poor.

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