秦山第二核电厂乏燃料水池失去冷却后最短响应时间分析

Minimum Response Time Study of Spent Fuel Pool Lost Cooling for Qinshan NPP-2

全厂断电事故工况下,反应堆乏燃料水池冷却和处理系统存在较大的停运风险。为避免反应堆乏燃料水池失去冷却事故工况的进一步恶化,使用ORIGEN-S程序计算了不同状态下从乏燃料水池失去冷却到乏燃料组件裸露的最短时间。结果表明,在最恶劣工况下,乏燃料组件裸露的最短时间为79.2h,该结果也被用于制定秦山第二核电厂的应急响应行动计划。

In the case of station blackout system had a high risk to break down. In spent fuel pool cooling going worse, the accident, the reactor spent fuel pool cooling order to avoid the accident without the reactor minimum time from the spent fuel pool lost cooling to. the spent fuel assembly exposing was calculated by using the ORIGEN-S code. The calculation results show that the minimum time of the worst case is 79.2 h, and the results are also used to establish the emergency response plan for Qinshan NPP-2.