| 49-2游泳池式反应堆全场断电事故与自然循环能力分析 |
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| 引用本文： | 吴园园,刘天才,孙微.49-2游泳池式反应堆全场断电事故与自然循环能力分析[J].原子能科学技术,2012,46(Z1):290-294. |
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| 作者姓名： | 吴园园 刘天才 孙微 |
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| 作者单位： | 1.中国原子能科学研究院 反应堆工程研究设计所，北京102413；2.环境保护部 核与辐射安全中心，北京100082 |
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| 摘 要： | 在全场断电事故下，采用RELAP5/MOD3.3程序对49-2游泳池式反应堆系统热工水力参数瞬态特性进行计算分析，验证反应堆利用自然循环和自身负反应性对事故的缓解能力，并简要讨论了堆芯通道和主泵惰转对事故后果及进程的影响。计算结果表明，在49-2反应堆发生全场断电事故且紧急停堆系统失效后，反应堆可依靠自身的负反应性使反应堆处于停堆状态，并能形成稳定的自然循环，导出堆芯余热，验证了49-2反应堆在全场断电超设计基准事故中是安全的。
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| 关 键 词： | RELAP5/MOD3.3 游泳池式反应堆 全场断电 自然循环 |
Analysis of SBO Accident and Natural Circulation of 49-2 Swimming Pool Reactor |
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| WU Yuan-yuan
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LIU Tian-cai
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SUN Wei.Analysis of SBO Accident and Natural Circulation of 49-2 Swimming Pool Reactor[J].Atomic Energy Science and Technology,2012,46(Z1):290-294. |
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| Authors: | WU Yuan-yuan LIU Tian-cai SUN Wei |
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| Affiliation: | 1.China Institute of Atomic Energy, P. O. Box 275-33, Beijing 102413, China;2.Nuclear and Radiation Safety Center, Ministry of Enviromental Protection, Beijing 100082, China |
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| Abstract: | The transient thermal hydraulic characteristics of 49-2 Swimming Pool Reactor (SPR) were analyzed by RELAP5/MOD3.3 code to verify the capability of natural circulation and minus reactivity feedback for accident mitigation under the condition of station blackout (SBO). Then, the effects on accident consequence and sequence for core channels and primary pumps were briefly discussed. The calculation results show that the reactor can be shutdown by the effect of minus reactivity feedback, and the residual heat can be removed through the stable natural circulation. Therefore, it demonstrates that the 49-2 SPR is safe during the accident of SBO. |
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| Keywords: | RELAP5/MOD3 3 SPR SBO natural circulation |
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