我国运行核电机组安全改进措施分析

Inspirations of Fukushima Daiichi Nuclear Accident and the Safety Improvement of Domestic NPPs in Oneration

为了全面提高我国运行核电厂安全性和应对超设计基准事故能力,文章根据福岛核事故中长期断电、堆芯熔毁、乏燃料池破损、厂房被淹等原因分析结果,结合了国家核安全局整改要求和国内运行核电整改进展,总结了包括完善严重事故导则、增加一回路和二回路应急补水、防水封堵、增加移动电源和非能动消氢复合器等改进措施及其技术要点。

In order to improve the operation safety and the abilities to deal with beyond design basis accidents of the domestic nuclear power plants in operation, this article summarized some improvement methods and their technical requirements, including modification of severe accident guidelines, arrangement of emergency water makeup of the main coolant loop and the secondary loop, waterproof capping, arrangement of movable power supply and passive hydrogen recombiner, according to reason analyses for long-term blackout, core meltdown, spent fuel pool failure, important building submergence and the improvement requirements put forward by the National Nuclear Safety Administration,.