燃烧福建无烟煤CFB锅炉炉内脱硫模型  

Combustion Desulphurization Model of Fujian Anthracite in Circulating Fluidized Bed Boiler

作　　者：何宏舟[1] 申良坤[1] 苏亚欣[2] 

机构地区：[1]集美大学机械工程学院,厦门361021 [2]东华大学科学与工程学院,上海200051

出　　处：《燃烧科学与技术》2008年第2期143-146,共4页Journal of Combustion Science and Technology

基　　金：福建省科技计划重点资助项目(2006H0088);福建省自然科学基金(E0740012);集美大学优秀青年骨干教师支持计划资助项目(2006B005)

摘　　要：建立了燃烧福建无烟煤CFB锅炉炉内脱硫的一步法反应模型.模型的计算结果与工业实际脱硫试验数据吻合较好,能反映出脱硫效率随钙硫物质的量之比的变化且有拐点的现象.数值模拟结果表明,在钙硫物质的量之比保持不变的条件下,脱硫效率随着流化速度的增加而降低,随着物料循环流率的增加而提高,随着燃烧温度的升高而增加;当其他运行参数不变时,负荷波动对脱硫效率的影响很微弱.One-step desulphurization reaction model of Fujian anthracite combustion in circulating flttidized bed （CFB） boiler was established. Results calculated from the model agree well with those obtained from industrial experiments, which can describe the tendency of the variation of desulphurization efficiency with the Ca/S mole ratio and reflect the fact that an optimal Ca/S mole ratio exists for each definite boiler performance. Numerical simulation indicate that, when the Ca/S mole ratio remains constant, the desulphurization efficiency decreases as the flue gas velocity increases and increases as the circulation ratio increases; with the rising of combustion temperature, the desulphurization efficiency increases as well, while the desulphurization efficiency stays almost constant with the change of load.

关 键 词：循环流化床锅炉 福建无烟煤 炉内脱硫 一步法模型 

分 类 号：TK477[动力工程及工程热物理—动力机械及工程]