锅炉尾部烟道振动原因分析及处理  

Cause Analysis on Vibration of Convection Flue Gas Pass in Boiler and Its Treatment

作　　者：楼杰 蒋建伟 

机构地区：[1]广东粤电靖海发电有限公司,广东揭阳515223

出　　处：《四川电力技术》2012年第4期91-94,共4页Sichuan Electric Power Technology

摘　　要：广东惠来电厂2号DG1900/25.4-П2型超临界锅炉出现了尾部烟道振动问题。经试验、分析、计算,认为主要原因是由卡门涡流脱落频率接近设备的声学驻波频率而使设备产生高频共振所致。通过采取加装防振隔板的措施,振动问题得以解决,取得了满意的效果。The phenomenon about the vibration of convection flue gas pass in No. 2 DG1900/25.4 -172 supercritical boiler of Guangdon Huilai Power Plant are introduced. After the tests, analyses and calculations, the main causes of the vibration are obtained that is caused by high - frequency resonance due to Karman vortex shedding frequency being close to the acoustic standing - wave frequency of the equipment. Some measures such as installing the antivibration baffle are proposed to solve the vibration problem, which meets with satisfactory results.

关 键 词：600MW超临界锅炉 尾部烟道振动 卡门涡流(涡街) 防振隔板 

分 类 号：TK227[动力工程及工程热物理—动力机械及工程]