摘要
某核电厂大修期间,发现汽水分离再热器系统疏水阀阀体内壁存在严重冲蚀减薄形貌。通过形貌分析、材料分析及运行工况分析等手段,发现阀体内壁冲蚀减薄是由高流速气液两相流所致。
During the daily operation of a nuclear power plant,it was found that a drain valve in the high pressure feed water heating system had leakage.it was found that the perforation of valve body was caused by the erosion of high velocity gas-liquid two-phase flow due to the low hardness of material and unreasonable structure design by means of shape analysis,material analysis and numerical simulation of flow field.
作者
富敏
张维
蒋益丰
刘洪群
FU Min;ZHANG Wei;JIANG Yi-feng;LIU Hong-qun(CNNC Nuclear Power Operations Management Co.,Ltd,Haiyan 314300,China;Suzhou Nuclear Power Research Institute,Suzhou 215004,China)
出处
《全面腐蚀控制》
2020年第6期4-6,共3页
Total Corrosion Control
关键词
冲蚀
减薄
形貌分析
气液两相流
erosion
decoct thin
morphology analysis
gas-liquid two-phase flow
