CFB锅炉返料立管水冷装置及比较  

Comparison Between Various Water-Cooling Units for Vertical Material Returning Tubes of CFB Boilers

作　　者：商桂新 刘洪龙[1] 夏卓林 

机构地区：[1]济南锅炉集团有限公司设计处,山东济南250023

出　　处：《发电设备》2008年第4期303-305,共3页Power Equipment

摘　　要：在以绝热的高温旋风分离器作为分离元件的CFB锅炉中,因旋风分离器及返料立管内物料的二次燃烧而导致物料超温甚至结焦,因而影响锅炉的正常运行。介绍了目前常用的一种返料立管水冷装置和新开发的一种水冷装置,对2种水冷装置进行了结构、热力计算和防磨措施的比较,指出了2种水冷装置对煤种的适应性。For a CFB boiler, which takes insulated high-temperature cyclone separator as its separation component, problems such as overheating or even coking caused by secondary combustion of material in both its cyclone separator and vertical returning tube will effect the normal operation of the boiler. An introduction is being presented respectively to a currently used and a newly designed water-cooling device for such vertical material returning tubes, and a comparison is being made to their constructions, thermal calculations, anti-erosion measures as well as their coal adaptabilities.

关 键 词：能源与动力工程 CFB锅炉 高温旋风分离器 返料立管 水冷装置 热力计算 

分 类 号：TK229.66[动力工程及工程热物理—动力机械及工程]