尾水管水力振动的监测与故障判断  

Hydraulic vibration monitoring and fault estimation in draft tub es

作　　者：章志平[1] 韦彩新[1] 张双全[1] 邓正鹏[2] 

机构地区：[1]华中科技大学能源与动力工程学院 [2]黄龙滩水电厂

出　　处：《华中科技大学学报（自然科学版）》2003年第7期64-65,68,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目 (5 99790 0 7)

摘　　要：从模型及真机试验结果出发 ,叙述混流式水轮机一般的水力故障形式 .研究了尾水管的水力振动特点及振动随运行工况而变化的情况 .From the model and prototype test result, hydraulic f au lts in francis turbines were introduced. The characteristics of hydraulic vibrat ions in draft tubes and variation of vibrations with operation conditions were s tudied. A method for monitoring the hydro-vibration in draft tube and diagnosin g the fault based on the frequency and amplitude of hydro-vibration was introdu ced.

关 键 词：水轮机 尾水管 试验 振动监测 故障判断 

分 类 号：TK730.314[交通运输工程—轮机工程]