Large-diameter seamless steel inner container annular winding gas cylinder and manufacturing method thereof

Abstract

The invention discloses a large-diameter seamless steel inner container annular winding gas cylinder and a manufacturing method thereof. According to the large-diameter seamless steel inner container annular winding gas cylinder, high-strength carbon fibers are adopted to enhance the pressure bearing capacity of a seamless steel inner container, a combined winding process of orthogonal winding and cross winding is adopted to enable the carbon fibers to bear radial stress and axial stress, and the structural characteristics that stress among all layers of carbon fibers in the winding process is intensified and reasonably distributed, and relevance and mutual compensation consistency are enhanced are enhanced, so that elastic deformation generated in the process of repeatedly inflating and deflating high-pressure gas of the inner container is strictly controlled within a theoretical standard value.

Description

technical field [0001] The invention relates to the field of mobile pressure vessels, in particular to a large-diameter seamless steel liner circumferentially wound gas cylinder and a manufacturing method. Background technique [0002] The development of natural gas and hydrogen fuel cell vehicles has become the best choice for countries around the world to improve the environment and achieve sustainable development. With the increasing development of CNG, LNG and hydrogen fuel cell vehicles, the demand for natural gas and hydrogen is also increasing, and transportation has become natural gas and hydrogen energy. important part of development. [0003] At present, natural gas transportation equipment mainly includes LNG car tankers, LNG tank containers, CNG long-tube trailers and CNG tube-bundle containers, and hydrogen transportation equipment mainly includes long-tube trailers and tube-bundle containers. The nominal working pressure of long-tube trailers and tube-bundle c...

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Problems solved by technology

[0005] In order to overcome the technical defects of steel gas cylinders in the prior art, such as heavy weight, small volume, small loading capacity, high unit transportation cost, complex process of winding composite gas cylinders with aluminum liner and plastic liner, and expensive equipment used, this paper The invention proposes that the purpose of the present invention is to provide a winding gas cylinder structure with a large volume of 2000-4300 liters, a large diameter of 671-719 mm, a thickness of 8.8-16 mm, and a nominal working pressure of 20-30 MPa for storing and transporting compressed gas and high-pressure liquefied gas

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