75t/hCFB锅炉管式空气预热器振动问题的分析与处理  

Analysis and Treatment on Vibration Problems of a 75t/h CFB Boiler Tubular Air Preheater

作　　者：宋连华[1] 

机构地区：[1]济南锅炉集团有限公司,济南250023

出　　处：《发电设备》2013年第3期191-193,共3页Power Equipment

摘　　要：针对一台75t/h次高温、次高压CFB锅炉,在试运时发生一、二次风管式空气预热器强烈的振动和噪声问题,分析了其产生振动和噪声的原因,提出沿宽度方向加装防振隔板,改变气室频率的处理方案。改造后消除了空气预热器管箱的振动和噪声。To solve the problems of strong vibration and noise existing in the tubular primary and secondary air preheater of a 75 t/h sub-high temperature sub-high pressure CFB boiler, causes leading to above problems were analyzed, based on which corresponding countermeasures were proposed and taken, such as adding anti-vibration partitions along the width direction and changing the frequency of the air chamber, etc. The problems are finally solved after retrofit.

关 键 词：CFB锅炉 管式空气预热器 振动 卡门涡流 气室固有频率 

分 类 号：TK223.34[动力工程及工程热物理—动力机械及工程]