A Pipeline Stress Evaluation Method Aimed at Engineering Practical Problems

A pipeline and practical technology, applied in the field of pipeline stress assessment for practical engineering problems, can solve problems such as troublesome use, error-prone, wrong calculation results, etc., and achieve the effect of convenient use and less error-prone

Active Publication Date: 2018-07-13
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

If the user fails to correctly specify the formula used, the calculation result will be wrong
[0023] However, there are many international pipeline codes, and the United States, France, and Japan are different, and the requirements of each country are different, and the content and coefficients in the formula are different, which is cumbersome to use and error-prone

Method used

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  • A Pipeline Stress Evaluation Method Aimed at Engineering Practical Problems
  • A Pipeline Stress Evaluation Method Aimed at Engineering Practical Problems
  • A Pipeline Stress Evaluation Method Aimed at Engineering Practical Problems

Examples

Experimental program
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Embodiment

[0061] Such as figure 1 As shown, the easy-to-use pipeline stress assessment method for practical engineering problems includes the following steps: ( figure 1 The upper part of the dotted line is the preliminary calculation preparation process, and the lower part of the dotted line is the actual engineering calculation process)

[0062] step one

[0063] First determine the norms that will be used in the assessment, including all planned normsll. The division of requirements for pipeline design grades in various codes is obtained, and the calculation requirements for nuclear grade pipelines are divided into grades 1, 2 and 3.ii.

[0064] step two

[0065] Find out the version of each specification that will be considered in the implementation, usually a chronological version, also code mm, and identify any special requirements nn in the specification or otherwise. Then sort out the load list of all codes to be adopted, and classify it, classify the same load types in all ...

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Abstract

The invention relates to an application method for calculation and analysis of industrial pipeline mechanics, in particular to a pipeline stress evaluation method aimed at practical engineering problems. The present invention starts from the load type in the actual analysis and calculation, and then from various conditions that need to be considered to complete the calculation until the final calculation result that needs to be obtained, and designs a new analysis requirement definition method for completing the entire pipeline stress calculation process. This method can reduce the professional requirements for program application personnel, reduce the possibility of errors when using the program, and improve the efficiency and quality of pipeline mechanics calculation work.

Description

technical field [0001] The invention relates to an application method for calculation and analysis of industrial pipeline mechanics, in particular to a pipeline stress evaluation method aimed at practical engineering problems. Background technique [0002] For the mechanical analysis of industrial pipelines, in the past, users of various pipeline mechanics calculation programs in the world have to determine which formula of which version of the code is used to evaluate the various loads of the pipeline calculation problem, which requires the user to be specific about the pipeline problem The mechanics problem and specification are very clear. For example, the conditions that must be distinguished in the design and calculation of pipelines in nuclear power plants include: [0003] 1. The level of the pipeline: nuclear safety level 1, 2, 3, or non-nuclear safety level; [0004] 2. The standard adopted: such as the United States, Germany or France; [0005] 3. Version of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
Inventor 刘树斌田金梅陈丽张双旺王元珠于凤云宁庆坤
Owner CHINA NUCLEAR POWER ENG CO LTD
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