原子能科学技术Issue(4)：680-687,8.DOI:10.7538/yzk.2015.49.04.0680
传热管泄漏对蒸汽发生器动态特性的影响
Effect of Heat Transfer Tube Leak on Dynamic Characteristic of Steam Generator
摘要
Abstract
Taking the steam generator of Daya Bay Nuclear Power Station as the re‐search object ,one‐dimensional dynamic model of the steam generator based on drift flux theory and leak model of heat transfer tube were established .Steady simulation of steam generator under different conditions was carried out .Based on verifying the drift flux model and leak model of heat transfer tube ,the effect of leak location and flow rate un‐der different conditions on steam generator’s key parameters was studied .The results show that the drift flux model and leak model can reflect the law of key parameter change accurately such as vapor mass fraction and steam pressure under different leak cases .T he variation of the parameters is most apparent w hen the leak is at the entrance of boiling section and vapor mass fraction varies from 0.261 to 0.163 when leakage ac‐counts for 5% of coolant flow rate .The successful prediction of the effect of heat trans‐fer tube leak on dynamic characteristics of the steam generator based on drift flux theory supplies some references for monitoring and taking precautionary measures to prevent heat transfer tube leak accident .关键词
蒸汽发生器/漂移流模型/传热管泄漏/热工水力特性Key words
steam generator/drift flow model/heat transfer tube leak/thermal-hydrau-lic characteristic分类
能源科技引用本文复制引用
孙宝芝,史建新,雷雨,李娜,郑陆松,刘尚华..传热管泄漏对蒸汽发生器动态特性的影响[J].原子能科学技术,2015,(4):680-687,8.基金项目
国家自然科学基金资助项目（51109048）；黑龙江省自然科学基金资助项目（E201346）；中国博士后科学基金资助项目（20100471017）；中央高校基本科研业务费基金资助项目 （）
