Vehicle-mounted light full-winding fiber reinforced aluminum lining high-pressure hydrogen storage cylinder

Abstract

The invention discloses a vehicle-mounted light full-winding fiber reinforced aluminum lining high-pressure hydrogen storage cylinder. The hydrogen storage cylinder comprises a variable-thickness seamless aluminum alloy lining (100), a reinforcing sleeve (200) mounted on a shoulder-connected bottle mouth (104) of the variable-thickness seamless aluminum alloy lining (100), carbon fiber winding layers (300) mounted on the outer surface of the variable-thickness seamless aluminum alloy lining (100) and the outer surface of the reinforcing sleeve (200), and glass fiber impact resisting layers (400) mounted on the outer surfaces of the carbon fiber winding layers (300) and the outer surface of the reinforcing sleeve (200); and a sleeve straight thread (201) on the inner surface of the reinforcing sleeve (200) made of aluminum alloys is in threaded connection with a bottle mouth straight thread (105) on the outer surface of the shoulder-connected bottle mouth (104). The hydrogen storage cylinder is compact in structure, light in weight, high in volume-weight ratio, high in working pressure and many in fatigue cycles, can improve the bottle mouth structure and the safety performance, andguarantees the operation quality.

Description

technical field [0001] The invention relates to the technical field of vehicle-mounted hydrogen storage gas cylinders, in particular to a vehicle-mounted lightweight fully wound fiber-reinforced aluminum-lined high-pressure hydrogen storage gas cylinder with light weight, high volume-to-weight ratio, high working pressure and many fatigue cycles. Background technique [0002] The high-pressure hydrogen storage cylinder is a key device for the application of new energy vehicles, and the working pressure can reach 35-70MPa. Limited by the density of hydrogen gas, it is difficult to greatly increase its hydrogen storage capacity. The hydrogen storage cylinders of the prior art adopt the method of increasing the thickness of the inner liner during high-pressure and high-cycle fatigue, and the weight increases sharply, which affects the cruising range. Under high pressure, the mouth of the gas cylinder is often reinforced with a steel sleeve connected by thermal expansion, which...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a hydrogen storage cylinder with light weight, high volume-to-weight ratio, and high working pressure for the problems of sharp increase in weight, low cruising range, deformation of the bottle mouth thread, and outward escape of the steel sleeve during high-pressure and high-cycle fatigue of the existing hydrogen storage cylinder. Vehicle-mounted lightweight fully-wound fiber-reinforced aluminum-lined high-pressure hydrogen storage cylinder with high and high fatigue cycles

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