| This thesis discussed the reliability of the significance of gas pipeline system.In exploring the urban gas distribution systems and Shenyang gas pipeline system on the basis of the status quo. Author collected gas accident statistics of Shenyang city,and study the reliability and its common index, Discussed Analysis of the reliability method. In the gas pipeline system on the basis of learning, Discussed the system reliability analysis of GO methodology, the basic principle of the law, Analysis, a public signal of the state probability algorithm etc. Calculated the reliability index of station branch line with GO methodology. Established of a gas pipeline network reliability comprehensive evaluation index system, And used AHP to find the weight of the various indicators. Used fuzzy comprehensive evaluation method to establish the reliability of a gas pipeline network comprehensive evaluation model. The above method for the integrated gas network reliability evaluation. Determined in accordance with the principle of maximum membership of the gas network reliability rating for qualified. Gas pipeline system is a complex system, The factors affected the reliability of the main pipe network are third party injury, pipeline corrosion, construction defects, design defects, pipe quality problem. The effective way to improve reliability of gas pipelines is reduce human accidents. Gas systems accident prevention should focus on before the accident. For hidden danger, study and proposed safety measures to improve the reliability of the gas pipeline network. |
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