核电厂核岛移动排烟设计参考标准和实践
Design reference standards and practices of mobile smoke removal from nuclear islands in nuclear power plants
摘要:
结合法规、设计标准、火场排烟和设计实践,从核电厂核岛存在火灾扑救应急排烟需求出发,介绍了火灾扑救应急排烟的备选方法与设施、移动排烟设施常用设计准则与实践及其应用挑战。提出了核岛移动排烟设计时可参考国内建筑固定排烟设计准则。但核岛移动排烟也存在火灾扑救所需的自持性、不同防火分隔措施等效补偿性、外部危害防护和放射性静态包容边界完整性、着火防火区(或小区)外保持运行连续性等差异性设计考虑因素,期待订立标准以改变当前缺少核岛移动排烟设计指导标准的现状。
Abstract:
Combined with regulations, design standards, fire field smoke removal and design practices, starting from the demand of fire fighting emergency smoke removal from nuclear islands in nuclear power plants,the alternative methods and features of emergency smoke removal for fire fighting, the common design criteria and practices of mobile smoke removal features and the application challenges are presented. It is proposed that the design of mobile smoke removal from nuclear islands can refer to the design guidelines for fixed smoke removal of domestic buildings. However, there are also different design considerations of mobile smoke removal from nuclear islands such as the self-sustainability required for fire fighting, the equivalent compensation of different fire separation measures, the integrity of external hazard protection and radioactive static containment boundaries, and the continuity of operation outside the fire area (or zone). It is expected that the standard will be developed to change the current lack of guidelines for the design of mobile smoke removal from nuclear islands.
Keywords:nuclear power plant; mobile smoke removal; fire fighting; emergency smoke removal; smoke removal method; smoke removal feature; design; standard