| 基于PSA的非能动余热排出系统可靠性研究 |
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| 引用本文： | 赵新文,郭海宽,蔡琦,邓纯锐. 基于PSA的非能动余热排出系统可靠性研究[J]. 核动力工程, 2020, 41(4): 122-127. DOI: 10.13832/j.jnpe.2020.04.0122 |
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| 作者姓名： | 赵新文 郭海宽 蔡琦 邓纯锐 |
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| 作者单位： | 海军工程大学核科学技术学院,武汉,430033,中国人民解放军92609部队,北京,100077,海军工程大学核科学技术学院,武汉,430033,中国核动力研究设计院,成都,610213 |
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| 基金项目： | 国家重点实验室基金;国家科技重大专项 |
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| 摘 要： | 非能动型反应堆概率安全评价（PSA）工作在分析非能动系统可靠性时，仅考虑系统设备可靠性，未涉及物理过程可靠性。综合考虑非能动系统设备可靠性与物理过程可靠性时，又存在仅考虑系统投入的设备可靠性而忽略运行设备可靠性的问题。针对此问题，以丧失正常给水事故下AP1000非能动余热排出系统（PRHRS）为研究对象，采用自主提出的综合法将系统可靠性融合进PSA模型，兼顾能动设备的需求失效与非能动设备的运行失效，分析了系统设备可靠性的敏感性。结果表明，综合法对PRHRS进行可靠性分析时所得事故序列谱更真实、更全面，与传统方法相比较具有优越性。
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| 关 键 词： | 设备可靠性 物理过程可靠性 概率安全评价（PSA） 非能动余热排出系统（PRHRS） |
Reliability of Passive Residual Heat Removal System Based on PSA |
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| Zhao Xinwen,Guo Haikuan,Cai Qi,Deng Chunrui. Reliability of Passive Residual Heat Removal System Based on PSA[J]. Nuclear Power Engineering, 2020, 41(4): 122-127. DOI: 10.13832/j.jnpe.2020.04.0122 |
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| Authors: | Zhao Xinwen Guo Haikuan Cai Qi Deng Chunrui |
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| Abstract: | Currently the equipment reliability has been studied when the probabilistic safety assessment (PSA) of advanced nuclear reactor is used to analyze the reliability of the passive system. However, the physical reliability has not yet been considered in PSA. On the other hand, the study of equipment reliability has been focused on all the start-up equipment rather than on the equipment in operation when the equipment reliability and physical reliability are discussed in a holistic fashion. In view of the aforementioned issues, this paper analyzed the equipment reliability sensitivity of the system based on the AP1000 passive residual heat removal system（PRHRS）subjected to the loss of normal feedwater supply. The system reliability is integrated into PSA model by self-developed synthesis method, which takes into account the demand failure of active equipment and the operation failure of passive equipment, and analyzes the sensitivity of system equipment reliability. The results show that the spectrum of the accident sequence obtained by the comprehensive method is more real and comprehensive when it is used to analyze the reliability of PRHRS, which is superior to the traditional method. |
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