某110m水头段巨型机组低水头高负荷运行区振动研究  

Research on Vibration in Low Head and High Load Operation Zone of a Giant Unit in a 110 m Head Section

作　　者：胡德昌[1] 胡军[1] 李俊[1] 许彬 宫傲 HU Dechang;HU Jun;LI Jun;XU Bin;GONG Ao

机构地区：[1]中国长江电力股份有限公司,湖北宜昌443000 [2]哈动国家水力发电设备工程技术研究中心有限公司,黑龙江哈尔滨150040

出　　处：《今日自动化》2025年第2期167-170,共4页Automation Today

基　　金：中国长江电力股份有限公司科研项目资助(2122020010)。

摘　　要：某110 m水头段巨型机组在低水头高负荷运行区存在特殊振动区,通过模型试验确定了现场振动问题的水力激振源,利用CFD分析方法在问题工况点对叶片设计进行了复核,确认了叶片设计合理性,并对泄水锥进行了优化改造,旨在降低或消除机组的特殊振动区。A giant unit with a water head of 110 meters has a special vibration zone in the low water head and high load operation area.The hydraulic excitation source of the on-site vibration problem was determined through model tests.The blade design was reviewed at the problem operating point using CFD analysis method,and the rationality of the blade design was confirmed.The discharge cone was optimized and modified to reduce or eliminate the special vibration zone of the unit.

关 键 词：水轮机 振动 CFD 泄水锥优化 

分 类 号：TV734.21[水利工程—水利水电工程]