天然气管道多部件设备机会维修决策研究

发布时间：2018-07-09 10:32

本文选题：天然气管道 + 多部件设备　；参考：《西安建筑科技大学》2017年硕士论文

【摘要】：我国部分天然气管道设备已步入老龄化阶段,管道设备的预防性维修工作就凸显其重要性。为了有效避免管道事故发生,设备管理部门不仅要保证设备正常运行的可靠度,还要在尽可能降低设备维修成本的条件下制定合理的维修策略。维修策略是否合理是直接影响企业经济效益的关键性因素,采用何种维修方式以及何时对部件实施维修是十分具有现实意义的课题。本文以部件最低可靠度为限制条件,针对单部件系统建立了预防性维修周期求解模型,根据实际情况求出了单部件最佳的维修间隔时间;结合机会维修理论,在一定的运行区间内对系统中所有的待修部件进行组合修理,分别以系统的总维修成本和可用度作为评价指标,构建了单目标预防性机会维修模型;针对天然气管道系统中设备维修时面临的维修目标和参数变量都较多的实际情况,为尽可能满足维修者不同方面的需求,对系统中的维修成本和可用度两个指标进行综合考虑,建立了多目标机会维修优化模型,同时结合数学知识运用线性加权分析方法优化模型,并采用粒子群算法对模型进行求解;以长输天然气管道压缩机系统作为研究对象,对压缩机系统进行了简单介绍,借助采集的设备故障数据,对所建立的模型进行了实证研究。本文将可靠性理论与机会维修理论相结合,以维修成本和可用度作为维修决策中分析的关键指标,针对天然气管道系统多部件设备建立了预防性机会维修模型。通过实证分析,该模型的应用减少了系统总维修成本,提高了系统的可用度,增加了系统有限期间内的有效运行时间,为天然气管道系统制定科学的维修策略提供了理论依据。
[Abstract]:Some natural gas pipeline equipment in China has entered the aging stage, the preventive maintenance of pipeline equipment highlights its importance. In order to avoid pipeline accidents effectively, the equipment management department should not only ensure the reliability of the equipment in normal operation, but also formulate reasonable maintenance strategy under the condition that the maintenance cost of the equipment is reduced as much as possible. Whether the maintenance strategy is reasonable or not is the key factor that directly affects the economic benefit of the enterprise. It is of great practical significance to adopt the maintenance method and when to carry out the maintenance of the components. In this paper, with the minimum reliability of components as the limiting condition, a preventive maintenance cycle solution model is established for a single component system, and the optimal maintenance interval time of a single component is obtained according to the actual situation, and combined with the opportunity maintenance theory, The combined repair of all the parts in the system is carried out in a certain running interval, and the single objective preventive opportunity maintenance model is constructed by taking the total maintenance cost and the availability of the system as the evaluation indexes respectively. In view of the fact that the maintenance objectives and parameter variables of the equipment in the natural gas pipeline system are many, in order to meet the different needs of the maintainers as much as possible, the maintenance cost and availability of the system are considered synthetically. A multi-objective opportunity maintenance optimization model is established, and the linear weighted analysis method is used to optimize the model combined with mathematical knowledge, and the particle swarm optimization algorithm is used to solve the model, and the gas pipeline compressor system for long distance transportation is taken as the research object. The compressor system is introduced briefly, and the model is studied with the help of the collected equipment fault data. In this paper, the reliability theory and the opportunity maintenance theory are combined, and the maintenance cost and availability are taken as the key indexes in the maintenance decision, and the preventive opportunity maintenance model is established for the multi-component equipment of the natural gas pipeline system. Through the empirical analysis, the application of this model can reduce the total maintenance cost of the system, increase the availability of the system, increase the effective operation time in the limited period of the system, and provide a theoretical basis for the establishment of scientific maintenance strategy for the natural gas pipeline system.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TE973

【参考文献】