冷却塔中代替风扇电动机的混流式水轮机导叶的优化研究  

Optimization Research on Cooling Tower Francis Turbine Guide Vane in Place of Fan Motor

作　　者：张海丽[1] 郑源[1] 张丽敏[1] 

机构地区：[1]河海大学水利水电工程学院,江苏南京210098

出　　处：《能源研究与利用》2008年第6期19-22,共4页Energy Research & Utilization

摘　　要：利用CFD数值模拟计算,为冷却塔中代替风扇电动机的混流式水轮机选择合适的导叶叶型。经过相同导叶开度和相同流量两种情况下不同导叶形式的模拟计算和对比分析,得出了负曲度导叶叶型性能最优,效率比其他两种导叶叶型的水轮机高0.22%～2.75%,确定其为该水轮机的导叶叶型,从而达到了在冷却塔中使用混流式水轮机代替风扇电动机的目的。The method of numerical simulation is introduced to choose the proper turbine guide vane that replace the Fan Motor in Cooling Tower. According the comparison and analysis in the same guide vane opening and the same flux but for different guide vane types, the negative curvature guide vane has the best performance. Its efficiency is higher by 0.22%-2.75% than the other two. Therefore the negative curvature guide vane is chosen as the turbine guide vane, achieving the goal of energy-saving in Cooling Tower.

关 键 词：水轮机导叶 数值模拟 冷却塔 优化 

分 类 号：TK73[交通运输工程—轮机工程]