喷淋系统启动时机对辐射后果的影响  

Radiological consequences of the startup timing of a containment spray system

作　　者：陈迎锋[1,2] 王建龙[1] 

机构地区：[1]清华大学核能与新能源技术研究院 [2]中国人民解放军92609部队

出　　处：《清华大学学报（自然科学版）》2013年第4期442-446,共5页Journal of Tsinghua University(Science and Technology)

基　　金：国家自然科学基金资助项目(59978020)

摘　　要：反应堆发生核事故时,启动安全壳喷淋系统是缓解事故后果的一种常用手段,喷淋系统的启动时机将直接决定应急措施的有效性。该文以某200MW压水堆为研究对象,介绍了一种有效的核事故辐射后果评价模式,针对发生典型设计基准事故——中破口失水事故,计算了喷淋系统的不同启动时机对环境所释放的放射性量及其所造成的个人有效剂量的影响,同时对喷淋系统的启动时机进行了评估。结果表明:反应堆发生核事故时,反应堆喷淋系统的适时有效启动将大大缓解事故所造成的辐射后果。During a nuclear accident, spray systems are used in the containment to alleviate the consequences. The startup timing of the spray system directly determines the emergency measures＇ effectiveness. The radiological effects of the spray startup time were analyzed for a 200 MW pressurized water reactor to evaluate the amount of radioactivity released to the environment and the resulting individual effective dose for different spray system startup times based on the typical design basis accident-break loss of coolant accident. The results show that timely and effective startup greatly alleviates the radiological consequences during a nuclear accident.

关 键 词：喷淋系统 核应急 辐射后果 个人有效剂量 

分 类 号：TL327[核科学技术—核技术及应用]