小型核动力非能动安全壳抑压与安注集成特性分析  

Integrated Characteristics Analysis of Passive Containment Pressure Suppression and Safety injection for Small Nuclear Plant

作　　者：钟明君[1] 蒋孝蔚 杨帆[1] 刘余[1] Zhong Mingjun;Jiang Xiaowei;Yang Fan;Liu Yu(Science and Technology on Reactor System Design Technology Laboratory,Nuclear Power Institute of China,Chengdu,China)

机构地区：[1]中国核动力研究设计院核反应堆系统设计技术重点实验室,四川成都

出　　处：《科学技术创新》2023年第23期63-66,共4页Scientific and Technological Innovation

摘　　要：非能动抑压冷却因其响应快、固有可靠性高、易实现集成简化、功构融合的特点,十分适宜核动力小型安全壳在事故下的早期控压需求。在此基础上,进一步采用水源集成共用思想,将安全壳抑压水源与安注水源集成,能够大幅缩减水源配置,助力压水堆核动力小型化、轻量化设计。利用反应堆冷却剂系统-安全壳耦合分析方法对安全壳抑压与安注集成后的失水事故特性进行了分析研究。结果表明,安全壳抑压与安注集成后系统间的耦合效应显著,降低抑压容量虽然会削弱安全壳抑压能力,但有助堆芯冷却。本研究通过对安全壳抑压与安注集成方案下的系统耦合效应量化分析为集成方案的详细设计建立了基础。Passive pressure suppression cooling is very suitable for small containment pressure controlling because of its characteristics of fast response,high reliability,easy to simplify and function-structure integration.Integration of pressure suppression water and injection water can reduce water allocation based on water resource sharing concept which can help nuclear plant miniaturization and light weighting.The paper analyzed the integrated characteristics using reactor coolant system-containment coupling method.Results indicated that the coupling effect is evident,decreasing the suppression capacity could improve the core cooling.This quantitative analysis of the coupling effect in this study supported the integrated detailed design in future.

关 键 词：小型压水堆 抑压冷却 集成特性 耦合分析 

分 类 号：TM623[电气工程—电力系统及自动化] TL364.3[核科学技术—核技术及应用]