High pressure hydrogen penetration test device and method

Abstract

The invention discloses a high pressure hydrogen penetration test device and method. The method comprises measuring a hydrogen permeation amount in sample stretching, and carrying out on-line in-situ measurement on quantitative relationships between a fatigue load state and the hydrogen permeation amount in different high pressure hydrogen environments, wherein the quantitative relationships can visually show an internal relationship between stress and hydrogen segregation diffusion and through the quantitative relationships, a direct relationship of dislocation motion, and a hydrogen diffusion coefficient, an acceleration amount and a hydrogen acceleration amount under different conditions is indirectly analyzed so that a reliable data basis is provided for dislocation density determination. The high pressure hydrogen penetration test device and method reduce a test dose and test time of a single test.

Description

technical field [0001] The invention relates to the technical field of high-pressure hydrogen permeation testing, in particular to a high-pressure hydrogen permeation testing device and testing method capable of testing the critical fatigue load of materials in a short time and measuring the hydrogen permeation amount under different temperatures, hydrogen pressures and fatigue loads . Background technique [0002] With the rapid development of my country's economy, the contradiction between energy supply and demand has become increasingly prominent, posing a serious threat to energy security and sustainable economic development. The development and utilization of hydrogen energy and the processing and upgrading of traditional fossil fuels have become important ways to solve energy supply and environmental problems. Hydrogenation reactors in petroleum hydrocracking, hydrofining, hydroreforming, coal hydrogenation liquefaction processes and ultra-high pressure hydrogen stora...

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Problems solved by technology

[0004] China Invention Authorization Publication No.: CN202693457U, authorized publication date January 23, 2013, discloses a high temperature and high pressure hydrogen sulfide environment hydrogen permeation detection device, the high temperature and high pressure hydrogen sulfide environment hydrogen permeation detection device includes: a high temperature and high pressure cathode Reactor, the side wall on one side is radially provided with a sealing sleeve, one end of the sealing sleeve is located at the reaction chamber of the high temperature and high pressure cathode reactor, and the other end protrudes from the high temperature and high pressure cathode The outer wall of the reactor, and form a sealed connection with the outer wall of the high-temperature and high-pressure cathode reactor; the disadvantage of this invention is that the amount of hydrogen permeation cannot be detected while stretching the sample

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