Plastic lining fiber reinforced composite material high-pressure hydrogen storage cylinder

Abstract

The invention discloses a plastic lining fiber reinforced composite material high-pressure hydrogen storage cylinder comprising a plastic lining, a metal gas cylinder opening end and a metal gas cylinder tail end. The opening end of the plastic lining wrapped with a prestress fiber reinforced layer is bonded to the lower end face of the metal gas cylinder opening end through an adhesive, the lowerend of the plastic lining is attached to the metal gas cylinder tail end, and the fiber reinforced layer at the upper end of the gas cylinder is attached to the axial upper end face of the metal gascylinder opening end. The fiber reinforced layer at the lower end of the gas cylinder is attached to the axial lower end face of the metal gas cylinder tail end, a glass fiber protective layer is wound on the outer side of the fiber reinforced layer, and gas cylinder end socket anti-collision layers are arranged on the outer sides of end sockets at the two ends. An O-shaped ring and an anti-loosening gasket are arranged between the opening end of the plastic lining and the axial lower end face of the metal gas cylinder opening end and are pressed by a nut and a spring gasket. Triple sealing ofO-shaped ring sealing, gluing sealing and plastic lining self-tightening sealing is adopted, the higher the pressure in the gas cylinder is, the tighter the pressure between the plastic lining and the metal gas cylinder opening end is, and gas leakage is more difficult.

Description

technical field [0001] The invention relates to a high-pressure hydrogen storage device, in particular to a plastic-lined fiber-reinforced composite material high-pressure hydrogen storage cylinder. Background technique [0002] With the continuous development of new energy vehicles, hydrogen energy has been more and more widely used as a clean and efficient renewable energy. High-pressure hydrogen storage is still the main method of hydrogen storage at present. At present, the inner lining of the gas cylinders used more is mostly metal inner lining, and the outer layer is wrapped with carbon fiber glass fiber. With the improvement of hydrogen storage density per unit mass, plastic-lined composite hydrogen storage cylinders have been developed. [0003] There are many patents on the structure of type IV gas cylinders, such as the US Patent US7648042B2 of Korea Composite Materials Research Co., Ltd. "a metal gas cylinder port design for composite high-pressure gas storage cy...

AI Technical Summary

Problems solved by technology

However, these structures are complicated to manufacture, require high machining accuracy, and are expensive.

Images