原子能科学技术2016，Vol.50Issue(7)：1208-1215,8.DOI:10.7538/yzk.2016.50.07.1208
安全壳喷淋泵转子系统热冲击特性分析
Thermal Shock Characteristic Analysis of Containment Spray Pump Rotor System
摘要
Abstract
In order to research thermal shock characteristics of the containment spray pump in a 1 000 MW nuclear power plant,the internal flow field of the containment spray pump under thermal shock was calculated numerically.The radial force becomes larger and larger gradually,the fluctuation of radial force is acute,and the axial force becomes smaller and smaller gradually.The fluctuation trends of the radial force and axial force under thermal shock are accorded to the forces in the normal isothermal con-dition.The temperature loadings which were solved by the internal flow field simulation and the pressure loadings were loaded on the pump’s structure to analyze temperature distribution of the rotor system under thermal shock,and the rules of the thermal stress and mechanical stress distributions.The results show that the thermal stress is predom-inant destruction factor of the structure.The destruction of the structure caused by thermal stress focuses on the hub,but the mechanical stress destruction concentrates on the boundary of the hub and the vane.From the blade root to blade tip,the thermal stress and mechanical stress of impeller blade decrease gradually.关键词
喷淋泵/热冲击/热应力/机械应力Key words
spray pump/thermal shock/thermal stress/mechanical stress分类
能源科技引用本文复制引用
王凯,王文博,刘厚林,丁荣,郭豹..安全壳喷淋泵转子系统热冲击特性分析[J].原子能科学技术,2016,50(7):1208-1215,8.基金项目
国家自然科学基金资助项目(51209105) （51209105）
江苏省产学研联合创新资金资助项目(BY2014123-09) （BY2014123-09）
江苏高校优势学科建设工程资助项目(PAPD) （PAPD）
