Defect quantified comprehensive safety judgment method for on-service pressure container

A technology for pressure vessels and defects, which is applied in the field of quantitative comprehensive safety evaluation of in-service pressure vessel defects, which can solve problems such as inconsistency of evaluation results, difficulty in detecting defects of in-service pressure vessels, and inability to dynamically monitor the trend of disaster changes, etc.

Active Publication Date: 2014-06-18
SOUTHWEST PETROLEUM UNIV
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  • Abstract
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Problems solved by technology

[0004] The purpose of the embodiments of the present invention is to provide a quantitative comprehensive safety assessment method for in-service pressure vessel defects, which aims to solve the problems existing in the existing assessment methods, such as the difficu

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  • Defect quantified comprehensive safety judgment method for on-service pressure container
  • Defect quantified comprehensive safety judgment method for on-service pressure container
  • Defect quantified comprehensive safety judgment method for on-service pressure container

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Embodiment Construction

[0114]In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0115] The application principle of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0116] Such as figure 1 As shown, the quantitative comprehensive safety evaluation method for in-service pressure vessel defects in the embodiment of the present invention includes the following steps:

[0117] S101: Use the magnetic memory detection method to detect the plane defects of the pressure vessels in service, and realize the quantification of the defects through calculation formulas;

[0118] S102: Use the test results of magnetic memory to conduct fr...

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Abstract

The invention discloses a defect quantified comprehensive safety judgment method for an on-service pressure container. The method comprises the steps of detecting a defect of the on-service pressure container by a magnetic memory detection method, and quantifying the defect by a calculation formula; performing planar defect breakage evaluation and planar defect fatigue evaluation on the on-service pressure container according to a magnetic memory detection result; constructing a comprehensive judgment matrix by a fuzzy comprehensive judgment system, calculating a total damage rate according to the damage rate, caused by each ineffectiveness factor, on the pressure container and a weight of the influences on the safety of the pressure container, determining a relation of the influences, and making comprehensive safety judgment. The defect quantified comprehensive safety judgment method for the on-service pressure container is high in reliability and high in operability, and an evaluation result can objectively and really reflect actual situations of engineering.

Description

technical field [0001] The invention belongs to the technical field of safety evaluation of pressure vessels, and in particular relates to a quantitative and comprehensive safety evaluation method for in-service pressure vessel defects. Background technique [0002] The pressure vessel is a special pressure-bearing equipment with explosion hazard. It has the characteristics of high temperature, high pressure, flammability, explosion, and complicated process. Once an explosion or leakage occurs, the consequences will be extremely disastrous. Therefore, the safety and reliability of pressure vessels Judgment is even more important. Compared with other methods, magnetic memory testing is used to quantify defects, and then the comprehensive safety evaluation of pressure vessels has distinctive features: first, as a new non-destructive testing method, magnetic memory testing is comprehensive and meticulous, and does not Affected by whether it is in operation or not, the operatio...

Claims

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Application Information

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IPC IPC(8): G01N27/83
Inventor 柳军张小洪黄陈何星
Owner SOUTHWEST PETROLEUM UNIV
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