后处理设施给水系统可靠性的GO法研究

摘要

后处理设施给水系统是后处理设施重要的公用系统,对后处理设施的稳定、安全运行至关重要.给水系统的可靠性需要深入分析,应用GO法进行了研究.获得了给水系统的平均故障概率、最小割集、重要度等可靠性指标.结果表明,给水系统的可靠性比较高,符合单一故障准则,二阶最小割集对系统故障的贡献最大,应该采取措施予以消除.进一步深入对比分析GO法与故障树法,结果显示,对于给水系统的可靠性分析,GO法有建模容易且图形简洁的优点.%The water supply system in a typical reprocessing facility is an important utility, which greatly influences steady and safety operation of the reprocessing facility.Since the reliability of the water supply system was required for deep analysis, GO methodology was applied to research for it.Reliability index such as average fault probability and minimal cut sets and their importance of the system were obtained in the research results.The results showed that the reliability of the system was very high and the system obeyed single fault principle.Since second order minimal cut sets contributed to the system fault mostly, some measures should be taken to eliminate them.Deeply parallel analysis between GO methodology and fault tree methodology was performed furthermore.The results showed that the modeling was much easier and the chart was much more succinct for GO methodology parallel with fault tree methodology to analyze the reliability of the water supply system.