摘要
严重事故管理(SAM)过程中,氢气控制相关的缓解措施可能与其他缓解措施相互影响,带来负面效果。本文研究了安全壳冷却应用于安全壳降压策略与氢气控制策略进行事故缓解时对氢气风险的影响。利用MATLAB开发了安全壳氢气可燃性判断辅助计算(CA)用于氢气可燃性判断。在此基础上,利用一体化分析程序建立了核电厂主系统与安全壳耦合分析模型,研究了安全壳惰化与恢复安全壳冷却对氢气风险的影响。分析表明,以50%流量开启安全壳冷却,能够维持安全壳压力且内部环境处于惰化状态,结合CA,能够通过控制安全壳压力实现缓解安全壳的氢气风险,可为技术支持中心制定相关缓解策略提供参考,提高严重事故管理导则的可执行性。
In the process of severe accident management(SAM),the interaction between hydrogen risk management strategies and other strategies has negative impact on hydrogen risk control.In this context,the impact of containment cooling on hydrogen risk is studied when implementing containment depressurization strategy and hydrogen control strategy.Firstly,the hydrogen risk status is predicted with a containment Hydrogen flammability computational aid(CA),which is developed with MATLAB code and applied for the following analysis.The analysis model of the containment combined with primary coolant system is built with integral accident analysis code.The influence of containment cooling measure on hydrogen risk is studied implementing two severe accident management strategies,inerting the containment and recovery of the containment cooling.Research shows that by reducing the cooling flowrate to 50%,the containment pressure can be controlled with inerting condition.This can provide technical support for decision-making of the technical support center and improve the operability of the severe accident management guidelines.
作者
刘汉臣
孙明军
佟立丽
LIU Han-chen;SUN Ming-jun;TONG Li-li(Mechanical and Engineering School,Shanghai Jiao Tong University,Shanghai,200240,China;Liao Ning Hong Yan He Nuclear Power Co.,Ltd.Dalian of Liaoning Prov.116021,China)
出处
《核科学与工程》
CAS
CSCD
北大核心
2018年第6期995-1001,共7页
Nuclear Science and Engineering
基金
国家自然科学基金项目(11675104)
国家科技重大专项(2015ZX06004003-002)
核反应堆系统设计技术重点实验室
关键词
安全壳
氢气风险
非能动安全壳冷却
严重事故管理
Containment
Hydrogen risk
Passive containment cooling
Severe accident management
