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核反应堆安全分析 (论文) Title: The Analysis of Steam Generator Tube Rupture in Nuclear Power Plant 题目：核电厂蒸汽发生器传热管破裂事故分析 学生姓名：XXXX 专 业：核工程与核技术 学 号：0902 指导老师：XXXX 二零一二年六月  摘要 蒸汽发生器传热管破裂事故在核电厂事故中居首要地位，据报道，国外压水堆核电厂的非计划停堆次数中约四分之一是因有关蒸汽发生器问题造成的。其传热管是蒸汽发生器中的重要部件，也是整个一回路压力边界中最薄弱的部分，只要有一根传热管断裂，就可能造成放射性物质的泄露及核电厂的长期停闭。因此，它严重地影响着核电厂运行的安全性、经济性及可靠性。 本文主要论述蒸汽发生器传热管的基本特性及其在压水堆核电厂的作用，分析蒸汽发生器传热管破裂事故的主要原因，事故过程，事故中的各种物理状态及事故后果等。并通过模拟软件对事故时运行人员干预前的事故进程和干预后的事故进程所得的参数曲线图进行分析，定性的分析蒸汽发生器传热管破裂事故在核电厂安全运行中的重要性 关键词：蒸汽发生器传热管破裂事故; 核电厂; 安全; 干预  Abstract Steam Generator Tube Rupture plays a major role in nuclear power plant accidents. According to the report, there is about a quarter of unplanned shutdown in foreign PWR nuclear power plant caused by troubled steam generator. The heat transfer tube is not only an important part in the steam generator, but also the weakest part in the entire primary circuit pressure boundary. As long as one heat transfer tube ruptures, it will cause a leak of radioactive substances and even lead to the nuclear power plants closed in long terms. Therefore, it affects the security and reliability of the operation of the nuclear power plant a lot. From above, this paper mainly discusses the basic characteristics of the steam generator tube and its role in the pressurized water reactor nuclear power plant. And explores the reasons, process, physical state and the consequences of the steam generator tube rupture accident .Besides, it also applies simulation software to analyze the parameter curves from intervention process before or after the accident, with view to make qualitative study on the importance of guaranteeing operation security in steam generator tube rupture accident. Keywords: Steam Generator Tube Rupture; Nuclear Power Plant; Security; Intervention    目 录 绪论 1 1.蒸汽发生器传热管概述 2 1.1传热管的发展及基本参数 2 1.2传热管的形状及作用 3 2.事故概述 5 2.1事故的定义及事故分类 5 2.2事故的主要原因 5 3.事故进程 7 3.1事故应对的基本原则 7 3.2没有人为干预时的物理状态 7 3.3运行人员干预时的物理状态 10 4．事故后果 13 5.结语 14 参考文献 15 致谢 16  核电厂