Abstract:

A layout of TBM tritium system was designed and analyzed according to safety conception of multiple containment. Function and material of TBM tritium system were analyzed based on safety analysis. Four safety states of TBM tritium system were divided, according to operating states or possible dangers of tritium system, different emergency level was ascertained, and different safety measures should be taken for each emergency level. At last, on the basis of above analysis, PHA of tritium release for three containment systems was completed, accidental cause and harmful consequence were analyzed, and safety measures resisting tritium release were given.

Key words: TBM tritium system, Safety analysis, Tritium release, Multiple containment, PHA

摘要：

以氚释放为安全分析的重点，根据氚多重包容的安全概念设计，分析了TBM氚处理系统的一种布局方式。从安全的角度进行了TBM氚处理系统的功能和材料分析，根据运行状态或危险给出了TBM氚处理系统可能存在的四个不安全状态，确定了在不同的系统状态工作人员处于不同的应急水平，应采取不同的应急措施。最后，在上述研究的基础上进行各级氚包容系统氚释放的预先危险性分析(PHA)，得到了事故原因和危害后果，并提出预防氚释放危险的安全措施。

关键词: 实验包层氚系统, 安全分析, 氚释放, 多重包容, 预先危险性分析