摘要
安全壳内操作平台是核电厂火灾风险评价的重要内容之一。本文对典型核电厂的安全壳内操作平台进行火灾风险分析,使用事件树方法演绎分析火灾情境并确定火灾情境的危害,通过对核电厂安全壳内火灾操作平台火灾序列演绎分析,建立安全壳操作平台火灾概率安全分析模型,进行定量化评估。研究分析3个火灾情境对核电厂始发事件和系统设备的影响。风险定量化结果表明:安全壳内操作平台火灾导致的堆芯损坏频率为3.11×10^(-8)/(堆·年)。
Operating platform inside the containment is one of the important contents of nuclear power plant fire risk assessment. In this paper, the risk analysis of fire between Operating platform inside the containment in typical NPPs is carried out. Based on the deductive analysis of the fire sequence of the containment platform in nuclear power plant, the probabilistic safety analysis model of the containment platform fire is established and evaluated quantitatively. The influence of three fire scenarios on the initial event and system equipment of nuclear power plant is analyzed. Risk quantification results show that the frequency of core damage caused by fires between Operating platform inside the containment is 3.11×10^(-8)/(reactor·year).
作者
史强
石兴伟
贾斌
张泽宇
王逊
SHI Qiang;SHI Xingwei;JIA Bin;ZHANG Zeyu;WANG Xun(Nuclear and Radiation Safety Center,MEP,Beijing,102488,China)
出处
《核科学与工程》
CAS
CSCD
北大核心
2022年第6期1455-1459,共5页
Nuclear Science and Engineering
关键词
安全壳内操作平台
火灾风险分析
火灾情境
堆芯损坏频率
Operating platform inside the containment
Fire risk assessment
Fire scene analysis
Core damage frequency
