Controllable steering pressure relief device for high-pressure hydrogen storage system of new energy vehicles

Abstract

The invention provides a controllable steering pressure relief device of a high-pressure hydrogen storage system of a new energy automobile, and belongs to the technical field of machinery. The controllable steering pressure relief device solves the safety problem in the existing fixing and pressure relief technology, and achieves reliable vehicle-mounted high-pressure hydrogen pressure relief andsteering functions. The controllable steering pressure relief device comprises a hot melt pressure release valve, a guide pipe and a steering pipe, the guide pipe is connected with the hot melt pressure release valve, the guide pipe communicates with the hot melt pressure release valve, the steering pipe is L-shaped, the inner end of the steering pipe is sleeved at the outer end of the guide pipeand is axially and fixedly connected with the guide pipe, the steering pipe is provided with a locking structure, the outer end of the steering pipe is vertically downward when the steering pipe is in the initial state, and the steering pipe is positioned under the action of the locking structure; and the pressure relief device further comprises a driving part, the driving part can drive the steering pipe to swing 40-60 degrees and can be used for positioning the swing steering pipe through the locking structure. The pressure relief device is compact in structure and high in stability, accidents caused by pressure relief can be remarkably relieved through a reliable pressure relief steering function, and the safety of the vehicle-mounted high-pressure hydrogen storage system is improved.

Description

technical field [0001] The invention belongs to the technical field of machinery and relates to a controllable steering pressure relief device for a high-pressure hydrogen storage system of a new energy vehicle. Background technique [0002] New energy vehicles are a strategic emerging industry that my country focuses on supporting and developing. Among them, hydrogen fuel cell vehicles have a good development momentum due to their significant advantages such as high energy efficiency and zero emissions. [0003] However, safety concerns are one of the obstacles hindering the promotion of hydrogen fuel cell vehicles. High-pressure hydrogen storage, easy leakage, flammability and explosive properties make vehicle-mounted high-pressure hydrogen a source of danger, and different types of accident consequences can occur under different circumstances. [0004] Hydrogen is usually stored at high pressure in fuel cell vehicles, the pressure can reach 35MPa to 70MPa. The Western ...

AI Technical Summary

Problems solved by technology

[0006] Although TPRD has avoided the catastrophic explosion of the hydrogen storage bottle, the existing on-board high-pressure hydrogen storage hot-melt pressure relief valves are all designed with a fixed orientation. The valve is an ordinary fixed structure. The escape of personnel brings greater risks, resulting in poor escape safety

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