Method for realizing reliability maintenance planning of high temperature pipeline system

A system implementation and reliability technology, used in piping systems, testing of machine/structural components, special data processing applications, etc.

Inactive Publication Date: 2011-03-30
EAST CHINA UNIV OF SCI & TECH
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Problems solved by technology

[0007] (2) Secondly, under the statistical distribution properties of different parameter

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  • Method for realizing reliability maintenance planning of high temperature pipeline system
  • Method for realizing reliability maintenance planning of high temperature pipeline system
  • Method for realizing reliability maintenance planning of high temperature pipeline system

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Embodiment Construction

[0078] In order to understand the technical content of the present invention more clearly, the following examples are given in detail.

[0079] see figure 1 As shown, the high temperature pipeline system realizes the method of reliability maintenance planning, which includes the following steps:

[0080] (1) Collect and acquire the detection data of the high-temperature pipeline system;

[0081] (2) Carry out finite element calculation of the high temperature pipeline system according to the detection data;

[0082] (3) Determine the creep damage parameters of the high-temperature pipeline system according to the degree of influence of various factors on the life of the high-temperature pipeline, including the following steps:

[0083] (a) Reduce the influence of highly nonlinear and random factors in the material test data of high-temperature pipelines, reduce the randomness of the data, and reduce the degree of nonlinearity of the data; the reduction of the randomness of t...

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Abstract

The invention relates to a method for realizing reliability maintenance planning of a high temperature pipeline system, which comprises the following steps of: collecting and acquiring detection data of a high temperature pipeline system; calculating a finite element of the high temperature pipeline system; determining creep damage parameters according to the influence degree of all factors on the life of the high temperature pipeline; creating a creep damage probability model through determining the probability distribution of the creep damage parameters; calculating a structural failure probability according to the creep damage probability model; creating a maintenance planning model based on reliability analysis according to the detection data, test results of materials and structures of the high temperature pipeline system and the structural failure probability; and carrying out calculation processing according to the maintenance planning model to obtain the optimal maintenance time of the high temperature pipeline system. By adopting the method for realizing the reliability maintenance planning of the high temperature pipeline system, the structural reliability is determined efficiently and accurately, a maintenance scheme can be accurately determined, the similar problem of the maintenance planning of the high temperature pipelines in other fields can be solved, and the method has wider application range.

Description

technical field [0001] The invention relates to the field of pipeline systems of thermal power stations, in particular to the technical field of maintenance planning of high-temperature pipeline systems of thermal power stations, and specifically refers to a method for realizing reliability maintenance planning of high-temperature pipeline systems. Background technique [0002] The maintenance and management of high-temperature pipeline system equipment is the main concern of petrochemical industry enterprises. Because the high-temperature and high-pressure steam pipelines in modern thermal power stations and thermal power plants are generally expensive, and because the deterioration factors of materials in high-temperature and high-pressure environments are complicated A failure will have a huge impact on the economy and social security of the enterprise. [0003] For the above reasons, maintenance planning for high temperature pipelines is very important. In the 1960s, th...

Claims

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Application Information

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IPC IPC(8): F17D5/02G06F19/00G01M99/00
Inventor 刘长虹涂善东轩福贞王正东
Owner EAST CHINA UNIV OF SCI & TECH
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