1900t/h锅炉尾部烟道振动原因分析及处理  

Cause Analysis and Treatment on Tail Duct Vibration of a 1900t/h Boiler

作　　者：楼杰 蒋建伟 廖晓春 

机构地区：[1]广东粤电靖海发电有限公司,揭阳515223

出　　处：《发电设备》2012年第5期365-368,共4页Power Equipment

摘　　要：针对DG1900/25.4-II2型超临界机组锅炉出现的尾部烟道振动问题,经试验、分析和计算确定: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其产生高频共振所致。通过加装防振隔板使振动得以消除。Aiming at the tail duct vibration problem occurring in the boiler for a DG1900/25.4-II2 super critical unit, a series of experiments, analyses and calculations have been carried out, after which the vibration is found to be mainly caused by high-frequency resonance resulted from very closeness of the Karman vortex shedding frequency to the acoustic wave frequency of the equipment. The vibration could be eliminated by installing an anti-vibration baffle plate.

关 键 词：锅炉 烟道振动 卡门涡流 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]