抽水蓄能电站水泵水轮机组及厂房振动规律研究  

Study on the Vibration Law of Pump Turbine Unit and Powerhouse in Pumped-storage Power Station

作　　者：肖微 韩承灶 陈柳[2] 任绍成[2] 许亮华[2] 曹卫华 XIAO Wei;HAN Chengzao;CHEN Liu;REN Shaocheng;XU Lianghua;CAO Weihua(Pumped Storage Technology and Economy Research Institute of State Grid Xinyuan Company Ltd.,Beijing 100052,China;China Institute of Water Resources and Hydropower Research,Beijing 100048,China)

机构地区：[1]国网新源控股有限公司抽水蓄能技术经济研究院,北京市100052 [2]中国水利水电科学研究院,北京市100048

出　　处：《水电与抽水蓄能》2023年第4期10-19,共10页Hydropower and Pumped Storage

基　　金：国家电网有限公司总部管理科技项目(5419-202243054A-1-1-ZN)。

摘　　要：本文选取不同水头段抽水蓄能电站,对水泵水轮机组和厂房结构开展联合测试,通过对测试结果分析,总结得出机组和厂房结构振动的基本规律,明确了无叶区内叶片过流频率的压力脉动通过蜗壳进一步传播,其倍频对应的脉动压力分量引发厂房局部结构的振动。不同电站的局部结构振动水平不尽相同,被测电站的水轮机层和母线层立柱振动普遍偏大。除此之外,还需对局部结构的细节予以关注,如楼板装修层对振动的放大效应等。In this paper,through the joint test of the unit and powerhouse structure of Pumped-storage power station with different heads,the basic laws of the vibration of the unit and powerhouse structure are summarized.The frequency pressure pulsation of blade flow in the vaneless area is further propagated through the spiral case,and its frequency doubling pulsation component is the main factor causing local structural vibration of the powerhouse.The local structural vibration levels of different power plants vary.The test results in this article show that the column vibrations of the turbine and busbar layers are relatively larger.In addition,attention needs to be paid to the details of local structures,such as the amplification effect of floor decoration on vibration.

关 键 词：抽水蓄能 水泵水轮机 厂房结构 振动 

分 类 号：TV734[水利工程—水利水电工程]