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Supercritical carbon dioxide stress corrosion experimental device and experimental method

A technology of stress corrosion and carbon dioxide, applied in the direction of measuring devices, weather resistance/light resistance/corrosion resistance, instruments, etc., can solve the problems of being unable to apply supercritical carbon dioxide stress corrosion and supercritical carbon dioxide stress corrosion

Pending Publication Date: 2021-06-08
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this device cannot be applied to supercritical carbon dioxide stress corrosion
[0005] The publication number is CN102937569A, and the publication date is February 20, 2013. The Chine

Method used

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  • Supercritical carbon dioxide stress corrosion experimental device and experimental method
  • Supercritical carbon dioxide stress corrosion experimental device and experimental method

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Experimental program
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Embodiment 1

[0048] The supercritical carbon dioxide stress corrosion device reference of embodiment 1 figure 1 . figure 1 It is a schematic diagram of the overall structure of the supercritical carbon dioxide stress corrosion test device in one embodiment of the present invention.

[0049] Such as figure 1 As shown, the supercritical carbon dioxide stress corrosion device of embodiment 1 includes four parts: the first part is the control and recording system, the second part is the high temperature and high pressure experimental circuit, the third part is the gas condensation and on-line monitoring system, and the fourth part is The gas is supplied to the pressure-stabilized discharge system, and the connected arrow indicates the flow direction of the working medium in the pipeline. For the purpose of simplification, valves, connectors, etc. are not marked in the schematic diagram of the device in this embodiment, but it is conceivable that those skilled in the art can make correspondin...

Embodiment 2

[0058] In the supercritical carbon dioxide stress corrosion experimental device in this embodiment, the supercritical carbon dioxide stress corrosion device includes a control and recording system, a high temperature and high pressure experimental circuit, a gas condensation and online monitoring system, and a gas supply and pressure stabilization discharge system, wherein,

[0059] The control and recording system are respectively connected with the high temperature and high pressure experimental circuit and the gas condensation and online monitoring system through pipelines;

[0060] The high temperature and high pressure experimental circuit is used to simulate the experimental conditions of supercritical carbon dioxide stress corrosion;

[0061] The gas condensation and on-line monitoring system is connected to the gas supply and discharge system through the gas pipeline;

[0062] The gas supply and pressure stabilization discharge system is used to maintain the stable gas...

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Abstract

The invention discloses a supercritical carbon dioxide stress corrosion experimental device which comprises a control and recording system, a high-temperature and high-pressure experimental loop, a gas condensation and on-line monitoring system and a gas supply pressure stabilizing and discharging system, wherein the control and recording system is respectively connected with the high-temperature and high-pressure experiment loop and the gas condensation and online monitoring system through pipelines; the high-temperature and high-pressure experiment loop is used for simulating the supercritical carbon dioxide stress corrosion experiment conditions; the gas condensation and on-line monitoring system is connected with the gas supply pressure stabilizing and discharging system through a gas path pipeline; and the gas supply pressure stabilizing and discharging system is used for keeping the stable supply and output of gas in the supercritical carbon dioxide stress corrosion experimental device. In addition, the invention also discloses a supercritical carbon dioxide stress corrosion experiment method.

Description

technical field [0001] The invention belongs to the technical field of design and manufacture of material testing machines, and in particular relates to a supercritical carbon dioxide stress corrosion testing device. Background technique [0002] Stress corrosion refers to the destruction of metals in corrosive media under the action of tensile stress. It is a material destruction process caused by the combined effect of strain and corrosion caused by residual or applied stress. Stress corrosion widely exists in energy, power, petrochemical and other fields, and its manifestations are mostly cracks in pipes, welding and other parts. [0003] At present, there are some stress corrosion test machines in China, such as: [0004] The publication number is CN110231218A, and the publication date is September 13, 2019. The Chinese patent document titled "A Constant Strain Stress Corrosion Experimental Device and Its Test Method That Can Simulate Field Corrosion Environment" disclo...

Claims

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Application Information

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IPC IPC(8): G01N17/00G01N3/56
CPCG01N3/56G01N17/00
Inventor 郭相龙刘珠苏豪展张乐福龙家琛梁简泓赖平潘叙材
Owner SHANGHAI JIAO TONG UNIV
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