摘要
针对国内某核电厂凝汽器钛管变形问题,采用多相流动CFD方法开展凝汽器内部管束模块不同工况下的流动和换热特性分析,采用有限元分析局部钛管受力情况。研究结果表明,凝汽器在冬季临停工况下,空冷区将结冰;机组启动时,在凝汽器内部流场力及重力作用下冰体运动而损伤钛管,造成凝汽器空冷区周边钛管大规模变形。
Aiming at the deformation problem of the condenser titanium tube of a nuclear power plant in China, the multi-phase flow CFD method was used to analyze the flow and heat transfer characteristics of the internal tube bundle module in different working conditions, and the stress of local titanium tube by finite element method. The research results show that when the unit stops temporarily in winter, the air cooling area of the condenser will be frozen. When the unit starts, Titanium pipes were damaged by ice moving due to the gravity and force of the flow field inside the condenser, caused large-scale deformation of the titanium tube around the air-cooling zone of the condenser.
作者
李国栋
王涛
周建
郭兴刚
刘国栋
Li Guodong;Wang Tao;Zhou Jian;Guo Xinggang;Liu Guodong(Suzhou Nuclear Power Research Institute,Shenzhen,Guangdong,518000,China;Liaoning Hongyanhe Nuclear Power Co.,Ltd.,Dalian,Liaoning,116000,China;Harbin Institute of Technology,Harbin,150001,China)
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2020年第3期52-56,共5页
Nuclear Power Engineering
关键词
凝汽器
钛管
变形
循环水
结冰
Condenser
Titanium tube
Deformation
Circulating water
Icing
