评价双层安全壳直接旁路泄漏的设计思路研究

本文探讨了评价压水堆全压双层安全壳直接旁路泄漏的设计思路,特别是如何识别潜在旁路泄漏途径和如何确定旁路泄漏率,提出环廊初始维持较大负压使事故后不出现"正压"阶段从而不需评价"正压"期间旁路泄漏,和环廊初始维持较小负压且需评价事故后"正压"阶段持续时间两种主要设计思路,可指导研发先进压水堆核电厂时选择系统设计方案。

Design approach of dual containment direct bypass leakage evaluation

Two design approaches of dual containment direct bypass leakage evaluation (especially the identification of potential bypass leakage paths and the determination of bypass leakage rate)are proposed:maintaining a big initial annulus negative pressure and eliminating the positive pressure period after accidents which allows no direct bypass leakage during the positive pressure period, or maintaining a small initial annulus negative pressure and evaluating the positive pressure period after accidents,which can guide the advanced nuclear power plant research and development.