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汽包式锅炉炉水含硅量变化的影响因素及暂态过程分析
引用本文:孙玮恒,杨桦,马晖,姚秀平,王啸.汽包式锅炉炉水含硅量变化的影响因素及暂态过程分析[J].上海电力学院学报,2002,18(1):9-12.
作者姓名:孙玮恒  杨桦  马晖  姚秀平  王啸
作者单位:1. 嘉兴发电厂,浙江嘉兴,314201
2. 上海电力学院,上海,200090
摘    要:对炉水含硅量随各种影响因素变化的规律进行分析,指出影响炉水含硅量的主要因素是给水的含硅量和锅炉的排污率,在不同压力等级的锅炉中,两者对炉水含硅量的影响程度有很大差别;若某一时刻锅炉的给水硅、给水量、排污量之中的任一指标或全部发生了变化,炉水硅将按照指数规律向前的平衡值过渡,过渡时间长达3-5h。

关 键 词:热力发电厂  汽包式锅炉  炉水  含硅量  暂态过程
文章编号:1006-4729(2002)01-0009-04
收稿时间:2002/2/25 0:00:00

Investigation of the Temporary Characteristics of the Silica Concentration of Boiler-water in Drum-boiler
SUN Wei heng,YANG Hu,MA Hui,YAO Xiu ping and WANG Xiao.Investigation of the Temporary Characteristics of the Silica Concentration of Boiler-water in Drum-boiler[J].Journal of Shanghai University of Electric Power,2002,18(1):9-12.
Authors:SUN Wei heng  YANG Hu  MA Hui  YAO Xiu ping and WANG Xiao
Affiliation:SUN Wei heng 1,YANG Hua 1,MA Hui 1,YAO Xiu ping 2,WANG Xiao 2
Abstract:The effects of varions factors on the silica concentration of boiler water are analyzed. It is indicated that the silica concentration of boiler water mainly is determined by the silica concentration of feed water and the blow down ratio of boiler. At different pressure grade, the influence extent of the silica concentration of feed water and the blow down ration could be very different. If one or all of the factors, including the silica concentration of feed water, the feed water rate, the blow down rate is changed at a time, the silica concentration of boiler water will transit to a new value exponentially. The transition time could vary from 3 to 5 hours.
Keywords:boiler  boiler  water  blow  down  silica concentration  temporary characteristic  
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