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Slow tensile test method of pipeline steel in hydrogen environment

A tensile test and pipeline steel technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, measuring devices, instruments, etc. Safety and the effect of ensuring accuracy

Pending Publication Date: 2022-01-14
SINOPEC PETROLEUM ENG DESIGN +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] In view of the above analysis, the present invention aims to provide a slow tensile test method for pipeline steel in a hydrogen environment, in order to solve the problem that it is difficult to perform performance tests on pipeline steel in a high-pressure hydrogen environment in the prior art

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  • Slow tensile test method of pipeline steel in hydrogen environment
  • Slow tensile test method of pipeline steel in hydrogen environment
  • Slow tensile test method of pipeline steel in hydrogen environment

Examples

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Embodiment 1

[0059] A specific embodiment of the present invention provides a slow tensile test method for pipeline steel in a hydrogen environment, using the slow tensile test device for pipeline steel in a hydrogen environment in Example 1 to perform a slow tensile test, including the following step:

[0060] Step S1: Install the pipeline steel 7 of the test sample into the hydrogen environment box;

[0061] Step S2: filling the pipeline steel 7 in the hydrogen environment box with hydrogen;

[0062] Step S3: Connect the hydrogen-charged pipeline steel 7 to a slow stretching apparatus to perform a slow stretching test.

[0063] In a specific embodiment of the present invention, in step S1, the installation process of pipeline steel 7 includes:

[0064] Step S11: Open the hydrogen environment box and put in the pipeline steel 7 to be tested;

[0065] Step S12: passing one end of the pipeline steel 7 through the sealing cover 2, and the other end through the bottom of the box body 1;

...

Embodiment 2

[0081] A specific embodiment of the present invention discloses a slow tensile test device for pipeline steel in a hydrogen environment, such as Figure 1-Figure 8 As shown, it is used to realize the slow tensile test method in Example 1; the slow tensile test device of the pipeline steel in a hydrogen environment includes: a slow tensile instrument and a hydrogen environment box.

[0082] Among them, the hydrogen environment box is used to simulate the hydrogen pressure environment; the slow tensile test metal sample is placed, that is, the pipeline steel 7 is placed in the hydrogen environment box; Stretch pipeline steel 7. The slow stretching instrument is an instrument for slow stretching test, which is an existing product, and will not be described in detail in the present invention.

[0083] Further, the air inlet pipe 4 is used for introducing gas into the hydrogen environment box.

[0084] Further, the gas outlet pipe 5 is used to discharge the gas out of the hydroge...

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Abstract

The invention relates to a slow tensile test method of pipeline steel in a hydrogen environment, belongs to the technical field of pipeline steel testing, and solves the problem that performance testing of the pipeline steel in a high-pressure hydrogen environment is difficult to realize in the prior art. The method comprises the following steps: S1, mounting pipeline steel of a test sample into a hydrogen environment box; S2, filling the pipeline steel in the hydrogen environment box with hydrogen; and S3, connecting the pipeline steel filled with hydrogen into a slow stretching instrument, and carrying out a slow stretching test. Performance testing of the pipeline steel under different hydrogen partial pressure conditions is achieved, the pipeline steel is always in a hydrogen environment in the testing process, and then the testing accuracy is guaranteed.

Description

technical field [0001] The invention relates to the technical field of pipeline steel testing, in particular to a slow tensile test method for pipeline steel in a hydrogen environment. Background technique [0002] Hydrogen energy comes from a wide range of sources. As a secondary energy source, hydrogen can be produced not only through the reformation of fossil energy such as coal, oil, and natural gas, pyrolysis of biomass, or microbial fermentation, but also from industrial by-products such as coking, chlor-alkali, steel, and metallurgy. Gas production can also be produced by electrolysis of water, especially when combined with renewable energy power generation, not only to achieve green and clean life cycle, but also to expand the use of renewable energy. [0003] At present, the storage and transportation of hydrogen energy in my country is mainly based on the transportation of high-pressure gaseous hydrogen by long-tube trailers, supplemented by low-temperature liquid ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/08G01N3/02G01L11/00
CPCG01N3/08G01N3/02G01L11/00
Inventor 宋卫臣姜志阳汪兵辛萌黄涛席春晓刘清友魏子云贾书君何慧许有肖徐艳迪
Owner SINOPEC PETROLEUM ENG DESIGN
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