Diagnosis and Treatment of the Shaft Vibration Problem for an Ultra Super-critical 700MW Unit
[摘要] In this article, there existed a second order unbalance on LP1 shaft of a Super-critical 700MW unit. It can be derived from the mathematical model of flexible and symmetrical shaft vibration characteristics that there are two specific balancing methods, symmetrical for handling odd orders and symmetrical reverse for even orders. The symmetrical reverse balancing method is proved to be effective to solve the second order vibration problems.
[发布日期] [发布机构] Jiang Xi Electric Power Science and Research Institute of National Grid, Jiangxi Province, Nanchang; 330096, China^1;Shanghai Pengken Energy Technology Co.LTD, Shanghai; 200090, China^2
[效力级别] 经济学 [学科分类]
[关键词] Even orders;Second orders;Shaft vibrations;Ultra super critical;Vibration problem [时效性]
