原子能科学技术2017，Vol.51Issue(4)：694-699,6.DOI:10.7538/yzk.2017.51.04.0694
底反射层氧化对模块式高温气冷堆进气事故的影响分析
Influence of Bottom Reflector Oxidation on Air Ingress Accident of HTR-PM
摘要
Abstract
Air ingress accident plays an important role in the safety analyses of the high temperature gas-cooled reactor pebble bed module (HTR-PM).The nuclear grade graphite has a broaden use in HTR-PM and it is usually used as the reflector material,structure material and the moderating material.In the air ingress accident,the oxidation of the matrix graphite increases the risk of the exposure of the fuel particles and the release of radioactivity.Besides,the oxidation of the bottom reflectors may damage the integrity of the reactor bottom structure.The influence of two kinds of nuclear grade graphites on the double-ended guillotine break (DEGB) of the horizontal coaxial gas duct accident was analyzed by using TINTE code.In the premise of ensuring the integrity of the bottom reflector,the nuclear grade graphite with high oxidation rate can obviously decrease the risk of the exposure of the fuel particles and radioactivity release.关键词
模块式高温气冷堆/进气事故/底反射层/石墨氧化Key words
high temperature gas-cooled reactor pebble bed module/air ingress accident/bottom reflector/graphite oxidation分类
能源科技引用本文复制引用
徐伟,郑艳华,石磊..底反射层氧化对模块式高温气冷堆进气事故的影响分析[J].原子能科学技术,2017,51(4):694-699,6.基金项目
国家科技重大专项资助项目(ZX069) （ZX069）
