核电厂弹性基础定速主给水泵振动原因分析  

Analysis on Vibration Cause of Nuclear Power Plant Fixed-speed Main Feed Pump with Elastic Foundation

作　　者：张福海[1] 周正平[1] 孙忠志[1] 朱军[1] 赵迪 ZHANG Fuhai;ZHOU Zhengping;SUN Zhongzhi;ZHU Jun;ZHAO Di(CNNP Jiangsu Nuclear Power Corporation,Lianyungang 222000 China)

机构地区：[1]中国核电江苏核电有限公司,江苏连云港222042

出　　处：《电工技术》2019年第8期107-109,112,共4页Electric Engineering

摘　　要：本文针对田湾核电站二期工程主给水泵振动超标缺陷,结合其结构特点、管系布置等,开展了一系列振动原因排查工作,通过振动、模态测试,分析出结构共振是其振动超标的主要原因。最终通过对泵组底座进行灌浆加固,提高固有频率,解决了主给水泵组振动超标缺陷。In view of the defect of main feed pump over-vibration of phase II project in Tianwan nuclear power plant, combining with its structural characteristics, piping layout and etc, a series of investigations on vibration causes are carried out in this paper. Through vibration and modal tests, it is found that structural resonance is the main reason for over-vibration. Finally, through grouting reinforcement for the pump set foundation, its natural frequency is improved, and the defect of main feed pump over-vibration is solved.

关 键 词：弹簧基础 主给水泵 振动 

分 类 号：TM623[电气工程—电力系统及自动化]