运行条件对湿法脱硫系统耗水量影响的实验研究  

Research on Influence of Service Conditions on Water Consumption of Wet Desulphurization System

作　　者：张方炜[1] 王自宽[2] 李英伟[3] 谭厚章[4] 许超[4] 

机构地区：[1]华北电力设计院工程有限公司,北京100120 [2]北方联合电力有限责任公司,内蒙古呼和浩特010020 [3]内蒙古上都发电有限责任公司,内蒙古上都027200 [4]西安交通大学,陕西西安710049

出　　处：《电力勘测设计》2011年第6期37-39,72,共4页Electric Power Survey & Design

摘　　要：通过模拟电厂石灰石-石膏湿法烟气脱硫系统,以浆液池水位变化衡量系统耗水量大小,系统研究了入口烟气温度、烟气水蒸汽浓度及液气比对湿法脱硫系统耗水量的影响及其规律。结果表明:入口烟气温度90℃比入口烟气温度120℃～140℃时节水30%～40%;原煤全水分越高,烟气水蒸汽浓度越大,FGD耗水量越少,当烟气中水蒸汽浓度大于16%时,可能出现系统不需要补水反而要排水的情况。the influence of inlet flue gas temperature, inlet vapor concentration, and liquid-gas ratio on water use in Wet FGD was studied by simulating the practical Wet FGD system in power plant and is evaluated by water level change of water box. Results show that water consumption is 30%-40% less at inlet flue gas temperature 90℃ than that at inlet flue gas temperature 120℃～ 140℃.The more total moisture in coal, The higher inlet vapor concentration of flue gas and less water consumption. Moreover, when inlet vapor concentration of flue gas is high than 16%,The FGD may not need to add water but to drain.

关 键 词：湿法脱硫 入口烟气温度 烟气水蒸汽浓度 液气比 耗水量 

分 类 号：TM621[电气工程—电力系统及自动化]