核电站海水泵及附属排气管道应力分析及评定  

Stress analysis and assessment of seawater pump and auxiliary exhaust pipe in nuclear power plant

作　　者：马影 冯骥 吴小飞 余俊辉 MA Ying;FENG Ji;WU Xiaofei;YU Junhui(Chengdu Hezong Nuclear Power Engineering Co.,Ltd.,Chengdu 610213,China)

机构地区：[1]成都核总核动力研究设计工程有限公司,成都610213

出　　处：《计算机辅助工程》2024年第4期15-20,共6页Computer Aided Engineering

摘　　要：为保证核电站海水泵及其附属排气管道设备的可靠性,论证其应力强度满足相应核级标准要求,首先建立海水泵的几何模型,然后利用Ansys软件对海水泵及其附属排气管道进行三维有限元建模,顺序施加重力、压力、接管和地震载荷并进行载荷组合,最后结合ASME BPVC-III标准评定海水泵及其附属排气管道在不同工况下的应力分布。结果表明:海水泵及其附属排气管道在设计、正常、异常、紧急和事故工况下均满足应力限值。In order to ensure the reliability of the seawater pump and its auxiliary exhaust pipe in a nuclear power plant,and the stress intensity meets the requirements of the corresponding nuclear grade standards.Firstly,the geometric model of the seawater pump is established.Secondly,the three-dimensional finite element model of the seawater pump and auxiliary exhaust pipe is established by Ansys software.Then,gravity,pressure,nozzle and seismic loads are applied in sequence and combined.Finally,the stress distribution of seawater pump and auxiliary exhaust pipe under different working conditions is checked according to ASME BPVC-III standard.The results show that the seawater pump and the auxiliary exhaust pipeline meet the stress limit under design,normal,abnormal,urgent and accidental conditions.

关 键 词：海水泵 排气管道 应力评定 载荷组合 有限元 ANSYS ASME BPVC-III标准 

分 类 号：TL353[核科学技术—核技术及应用] TB115.1[理学—数学]