第31卷 2011年
第2期 6月
核科学与工程
Chinese Journal of Nuclear Scienceand Engineering 中国实验快堆的安全特性
徐
（中国原子能科学研究院，北京102413）
No.2
Vol.31
Jun.
2011
摘要：钠冷快堆因钠具有好的热物理特性而具有固有安全性，同时也因钠是活泼的碱金属，也难免会有钠的泄漏、钠火和钠水反应等工业事故。本文介绍了中国实验快堆利用钠冷快的固有安全性，装设了单靠自然循环和自然对流的事故余热导出系统等多项非能动安全系统及完善的能动安全系统，其安全性达到了第IV代先进核能系统的安全要求。对于大型快堆，因其保证高的增殖而会有正的钠空泡效应，需要开发非能动停堆系统以保持第IV代安全目标。
关键调：钠冷快堆；固有安全性；非能动安全措施；中国实验快堆；安全评价
中图分类号：TL32
文献标志码：A
文章编号：0258-0918(2011)02-0116-11
SafetypropertiesofChinaexperimentalfastreactor
xUMi
(China Institute of Atomic Energy, Beijing 102413, China)
Abstract:Sodium cooled fast reactor possesses some inherent safety properties, thanks to sodium perfect thermo-physical characteristics. In the same time sodium leakage inducing sodium fire or sodium-water reaction of industrial incidents, from sodium containing systems could not be excluded due to it is alkali metal. It is presented in the paper, that the safety of the China experimental fast reactor(CEFR)has meet the safety demands of Generation IV due to the inherent safety characteristics have been realized, some passive safety systems, like passive decay heat removal system based on natural convection and circulation and active safety measures have been equipped. As for the large sized fast reactor with high breeding feature which induces positive sodium bubble effect, it is needed to develop passive shut-down systems to keep the safety targets of GenerationIV.
Key words; sodium cooled fast reactor; inherent safety; passive safety measure; China
experimental fast reactor; safety assessment 收稿日期：2011-03-30；修回日期：2011-04-20
作者简介：徐棘(1937一），男，江苏扬州人，现任中国原子能科学研究院快堆总工程师，中国核工业集团公司快堆核电站技术
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