基于响应曲面法的除雾器叶片效率模拟  

Simulation Study of Separation Efficiency of Demister Vane Based on Response Surface Methodology

作　　者：赵健植[1] 金保升[1] 仲兆平[1] 孙克勤[2] 

机构地区：[1]东南大学洁净煤发电及燃烧技术教育部重点实验室,江苏省南京市210096 [2]苏源环保工程股份有限公司,江苏省南京市210024

出　　处：《中国电机工程学报》2007年第23期61-65,共5页Proceedings of the CSEE

基　　金：国家自然科学基金项目(50676021;50606006)~~

摘　　要：利用计算流体力学商业软件Fluent6.1对不同结构尺寸以及运行条件下波板型除雾器除雾叶片的内部流场进行了数值模拟,基于响应曲面法,利用统计软件MinitabV14得到了除雾效率的预测模型。对预测模型分析后表明,除了叶片间距和烟气流速影响除雾效率外,叶片高度(包括弯曲部高度和垂直部高度)以及叶片转折角度也会不同程度影响除雾效率。与前人的实验和模拟研究相比,该文的预测模型可以更加直观的反映除雾叶片的结构尺寸和运行条件对除雾效率的影响,有助于除雾器的优化设计。Numerical simulations of demister vane with various geometries and operating conditions were performed to study the efficiency of droplets separation. The numerical solutions were carried out using commercial computational fluid dynamic（CFD） code Fluent 6.1. A prediction model of the separation efficiency was obtained based on response surface methodology by means of the statistical software program Minitab VI4. The results show that not only the vane spacing and flue gas velocity, but also vane height （including height of curve and upright region） and vane turning angles, play an important role in influencing the separation efficiency. Compared with some experimental and simulative conclusions, the results indicate that present prediction model can estimate the effects of different geometries and operation conditions on the separation efficiency, and can direct the optimum design of demisters.

关 键 词：烟气脱硫 响应曲面法 数值模拟 除雾器 除雾效率 

分 类 号：X701[环境科学与工程—环境工程]