【作者】 颜珍； 李肇华； 李琳； 宋磊；

【Author】 YAN Zhen;LI Zhao-hua;LI Lin;SONG Lei;Shanghai Nuclear Engineering Research & Design Institute;

【机构】 上海核工程研究设计院；

【摘要】 火灾PSA作为一种基于概率论的风险评价技术,其在核电厂火灾风险评价中的应用已被业界广泛认可。根据工程实践经验,核电厂低功率及停堆期间发生的火灾对电厂安全的影响是不可忽视的,因此可使用火灾PSA技术评价低功率及停堆期间的火灾风险。然而目前国内关于低功率及停堆火灾PSA方面尚无明确的指导标准以及公认的分析方法。本文通过调研国际上核电厂低功率及停堆火灾PSA分析方法的最新进展,结合低功率及停堆火灾PSA的特性与相应的工程经验,得出一套可应用于工程实践的低功率及停堆火灾PSA方法并给出分析示例。更多还原

【Abstract】 As a risk assessment technology based on probability,the fire PSA is accepted abroad by nuclear industry in its application in the risk assessment for nuclear power plants.Based on the industry experience,the fire-induced impact on the plant safety during low power and shutdown operation cannot be neglected,therefore fire PSA can be used to assess the corresponding fire risk.However,there is no corresponding domestic guidance/standard as well as accepted analysis methodology up to date.Through investigating the latest evolvement on fire PSA during low power and shutdown operation,and integrating its characteristic with the corresponding engineering experience,an engineering methodology to evaluate the fire risk during low power and shutdown operation for nuclear power plant is established in this paper.In addition,an analysis demonstration as an example is given.更多还原