CAJ | 학술논문

全厂断电（SBO ）是可能导致核电厂严重事故的典型初因事件。为研究国内 M 310系列核电厂应对全厂断电事故的能力，并综合考虑福岛改进行动的要求，使用严重事故分析程序M ELCOR开展SBO事故缓解能力分析。通过研究主泵轴封，汽动辅助给水，一、二回路补水等因素，并考虑设备可用性及可到达时间，给出了影响全厂断电事故进程的关键环节。分析结果表明，改进后的M 310系列核电厂可有效缓解全厂断电事故，使反应堆冷却至可控状态，避免放射性物质向环境的大量释放。
전엄단전（SBO ）시가능도치핵전엄엄중사고적전형초인사건。위연구국내 M 310계렬핵전엄응대전엄단전사고적능력，병종합고필복도개진행동적요구，사용엄중사고분석정서M ELCOR개전SBO사고완해능력분석。통과연구주빙축봉，기동보조급수，일、이회로보수등인소，병고필설비가용성급가도체시간，급출료영향전엄단전사고진정적관건배절。분석결과표명，개진후적M 310계렬핵전엄가유효완해전엄단전사고，사반응퇴냉각지가공상태，피면방사성물질향배경적대량석방。
T he station black-out (SBO ) is a typical initial incident w hich may lead to severe accident .In order to study the ability to deal with SBO accident in M 310 type nuclear power plant and consider the requirements of Fukushima improvement actions , MELCOR code was used to analysis mitigation ability to the SBO accident .To get the key point of the impact in SBO accident process ,the factors of main pump seal ,steam-driven auxiliary feed water ,and feed water into primary and secondary circuits were studied ,and the equipment availability and the revamping time were also taken into account .The results show that the improved M310 type nuclear power plants can mitigate the SBO accident effectively and the reactor can be cooled to controllable state to avoid the massive release of radioactive material to environment .