循环流化床锅炉的吹管特点及运行方式研究  

FEATURES OF PIPE-BLOWING FOR CFB BOILER AND STUDY ON ITS OPERATION MODE

作　　者：龚鹏[1] 米子德[1] 张清峰[1] 

机构地区：[1]华北电力科学研究院有限责任公司,北京100045

出　　处：《热力发电》2012年第5期77-79,共3页Thermal Power Generation

摘　　要：分析了蓄能降压联合一段吹管方式的技术要求,总结了某300 MW机组DG1089/17.4-Ⅱ1型循环流化床(CFB)锅炉吹管特点,包括:(1)吹管过程中燃油使用量大,投煤量小;(2)风烟系统阻力较大,系统压力梯度增加;(3)汽温受床温影响较大;(4)单次吹管持续时间较长。同时,给出了锅炉吹管过程中风烟系统、燃烧系统、给水系统的控制要点。The technical requirements of combined one section pipe - blowing mode with energy - sto- ring and pressure- reducing have been analysed, and the pipe- blowing parameters being calculated, and determind. The pipe -blowing features of a DG1089/17.4 -Ⅱ 1 type CFB boiler for one 300 MW u- nit have been summarized as in the following： （1）small amount of adjustment in air and flue gas sys- tems; （2）large consumption of fuel oil and little consumption of coal in the process of pipe- blowing; （3）the resistance in air and flue gas systems was larger increasing the pressure gradient in said sys- tems; （4）the steam temperature is more affected by the bed temperature; （5）the CFB boiler has larger thermal storage,the duration of single time pipe - blowing has to be longer. The key points of control in air and flue gas systems,as well as in combustion system and feed- water system are given.

关 键 词：300MW机组 CFB锅炉 蒸汽吹管 床温 蓄热 

分 类 号：TK229.66[动力工程及工程热物理—动力机械及工程]