摘要
核电站建造于地下,反应堆厂房洞室外具备天然的裂变产物屏障,在安全壳外洞室内设置安全壳再循环系统,预防并缓解放射性裂变产物释放,维持安全壳的完整性。该系统同时整合了卸压、过滤、排热安全功能,充分发挥地下核电站重力补水和天然屏障的安全优势,可以非能动运行。本文通过简单的计算分析开展初步论证,证明该系统可以有效实现三大安全功能,是适合于地下核电站的安全系统。
For underground nuclear reactor, the reactor building cavern exists as natural barrier outside the containment bounding the potential fission products. Inside the cavern and outside the containment, the containment recirculation system is designed to prevent and mitigate the fission product release, and maintain the integrity of containment. Considering passive operation, the system design integrates the safety functions of depressurization, filtration and heat removal, and makes the best of advantages of underground reactor, gravity water supply and natural fission product barrier. By simple calculations and analysis at preliminary phase, it is demonstrated that the system could successfully realize the three safety functions, and the system is very suitable for underground nuclear power plant.
出处
《核科学与工程》
CSCD
北大核心
2017年第2期287-292,共6页
Nuclear Science and Engineering
关键词
地下核电站
再循环
非能动运行
安全壳热阱
Underground nuclear power plant
Recirculation
Passive operation
Containment heat sink
