High-pressure and ultrahigh-pressure hydrogen storage bottle type container and manufacturing method thereof

Abstract

The invention discloses a high-pressure and ultrahigh-pressure hydrogen storage bottle type container and a manufacturing method thereof. The manufacturing method comprises the following steps that asteel ingot with the S content not larger than 0.008% and the P content not larger than 0.015% is formed into a seamless steel pipe through hot rolling (expanding) or hot rolling and cold drawing; twoends of the seamless steel pipe are subjected to hot spinning to form hemispherical seal heads at the two ends; and the bottle body of the hydrogen storage bottle type container is subjected to quenching and tempering heat treatment, so that the metallographic structure of the bottle body is two-stage tempered sorbite (GB/T11354), and the grain size is not lower than grade 6. The manufacturing method of the high-pressure and ultrahigh-pressure hydrogen storage bottle type container is large in hydrogen storage capacity, long in service life, high in pressure bearing capacity, low in manufacturing cost, capable of preventing the hydrogen embrittlement phenomenon and convenient for regular inspection.

Description

technical field [0001] The invention relates to the field of hydrogen storage containers for hydrogen refueling stations, in particular to a high-pressure and ultra-high pressure hydrogen storage bottle container and a manufacturing method thereof. Background technique [0002] With the widespread and popular application of hydrogen as a fuel cell, large-scale hydrogen refueling stations or skid-mounted hydrogen refueling stations have entered a period of rapid development. The hydrogen storage containers used in existing hydrogen refueling stations mainly consist of two types of products: [0003] The first category: a hydrogen storage cylinder group composed of multiple seamless steel cylinders (Type I), steel liner fiber-wound gas cylinders (Type II) or aluminum liner fiber-wound gas cylinders (Type III). [0004] The second category: Large-scale hydrogen refueling stations or skid-mounted hydrogen refueling stations mostly use tape-wrapped or laminated multi-layer wrapp...

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Problems solved by technology

[0026] In order to overcome the shortcomings of long manufacturing cycle, complex combination, capacity and pressure bearing capacity, manufacturing cost, and regular inspection methods in the prior art, the present invention provides a hydrogen storage device with large hydrogen storage capacity, long service life, strong pressure bearing capacity, Manufacturing method of high-pressure and ultra-high-pressure hydrogen storage cylinder container with low manufacturing cost, prevention of hydrogen embrittlement and convenient periodic inspection

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