新型柱形圆盘涡轮搅拌桨性能的实验研究  

Experiment Research of Turbine Impeller Performance with Cylindrical Disk

作　　者：雷建勇[1] 郝惠娣[1] 翟甜[1] 

机构地区：[1]西北大学化学学院

出　　处：《化工机械》2014年第3期278-281,共4页Chemical Engineering & Machinery

基　　金：西北大学研究生创新人才培养项目(YZZ12040);陕西省教育厅科研项目(11JK0619)

摘　　要：通过搅拌不同浓度的CMC溶液,研究了新型柱形圆盘涡轮搅拌桨在直径300mm的搅拌槽内的部分搅拌性能。利用实验仪器测出不同转速下的扭矩,进而计算出对应的搅拌功率N、功率准数Np和雷诺数Re,然后借助excel绘制出Re-Np的关系图;借助Matlab软件进行线性回归,得出Re-Np的关联式,并在双对数坐标上绘制出其关系图,可知Re<10时,Np与Re呈现负相关;Re>10时,Np随Re的增加下降趋势变缓。Basing on mixing CMC solution of different concentrations,and in a 300mm-agitator bath,the performance of turbine impeller with cylindrical disk was studied,in which,having the torque at different rotate speeds detected with an experimental apparatus,and the corresponding stirring power N,the power number Np and the Reynolds number Re calculated to draw Re-Np relation map with the help of excel; and making use of Matlab,having linear regression implemented to get Re-Np correlation and to draw relation map between them in the double logarithmic coordinate.It shows that,when Re ＜ 10,Np and Re has negative correlation; and when Re ＞ 10,the Np＇ s decrease becomes slower with the increase of Re.

关 键 词：搅拌桨 Re-Np 搅拌功率 MATLAB 线性回归 

分 类 号：TQ051.72[化学工程]