| 反应堆非能动氢气复合器严重事故下消氢性能研究 |
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| 引用本文： | 丁超,周志伟,宋明强,夏兆阳,姜韶堃,杨志义. 反应堆非能动氢气复合器严重事故下消氢性能研究[J]. 原子能科学技术, 2020, 54(4): 629-634. DOI: 10.7538/yzk.2020.youxian.0033 |
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| 作者姓名： | 丁超 周志伟 宋明强 夏兆阳 姜韶堃 杨志义 |
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| 作者单位： | 清华大学 核能与新能源技术研究院，北京100084；生态环境部 核与辐射安全中心，北京102488；中国船舶集团有限公司 第七一八研究所，河北 邯郸056027 |
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| 摘 要： | 非能动氢气复合器（PAR）是核电厂主要的消氢措施。在严重事故下，某些裂变反应产生的特殊杂质(如I2、CsI、CO等)可能对催化剂产生有害的影响，为保证PAR消氢性能的可靠性，中毒机理研究十分必要。本文根据相关试验研究结果，从铂、钯金属原子分布结构、催化反应性面积两个方面对催化剂中毒效应进行机理分析，研究得出催化剂中金属原子的分布结构、进入PAR的实际毒物浓度等均是影响催化剂中毒效应的关键因素。
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| 关 键 词： | 严重事故 非能动氢气复合器 可靠性 中毒效应 |
Research on Hydrogen Elimination Performance of Passive Autocatalytic Recombiner of Reactor in Severe Accident |
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| DING Chao,ZHOU Zhiwei,SONG Mingqiang,XIA Zhaoyang,JIANG Shaokun,YANG Zhiyi. Research on Hydrogen Elimination Performance of Passive Autocatalytic Recombiner of Reactor in Severe Accident[J]. Atomic Energy Science and Technology, 2020, 54(4): 629-634. DOI: 10.7538/yzk.2020.youxian.0033 |
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| Authors: | DING Chao ZHOU Zhiwei SONG Mingqiang XIA Zhaoyang JIANG Shaokun YANG Zhiyi |
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| Affiliation: | Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing 100084, China; Nuclear and Radiation Safety Center, Ministry of Ecology and Environment, Beijing 102488, China; The 718th Research Institute, China State Shipbuilding Corporation Limited, Handan 056027, China |
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| Abstract: | The passive autocatalytic recombiner (PAR) is the main measure of hydrogen elimination in nuclear power plant. In severe accident, the presence of some impurities (e.g. I2, CsI, CO etc.) produced by fission reaction can have an adverse impact on catalyst functioning, and the relevant poison mechanism study is urgently needed to ensure reliability of PAR’s performance. According to results of relevant tests, the mechanism study was conducted from distribution structure of Pt and Pd atoms and active surface of catalyst. It is concluded that the distribution structure of metal atoms in catalyst and the real concentration of poisons flowed in PAR are key factors in poisoning effect. |
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| Keywords: | severe accident passive autocatalytic recombiner reliability of performance poisoning effect |
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