动叶可调轴流式通风机出口流场的实验研究  

Experimental study at the exit flow field of an axial flow fan with variable setting angle

作　　者：陈海生[1] 梁锡智[1] 谭春青[1] 康顺[1] 

机构地区：[1]中国科学院工程热物理研究所,北京100080

出　　处：《煤炭学报》2000年第4期412-415,共4页Journal of China Coal Society

基　　金：国家杰出青年基金项目!( 5 982 5 10 3 )

摘　　要：对轴流式通风机在不同安装角时的流场变化进行了实验研究 ,得到了通风机的总性能曲线 ;并用固定在转子前、后测量平面的热线 ,测量了最高效率点处不同安装角时叶片通道进、出口轴向和切向速度的分布 ,从而能够清楚地了解到 ,通风机在安装角变化时 ,叶片通道进、出口截面流动结构的变化 .Experimental study has been carried out for variable setting angle axial flow fans in this paper. The performance curves of the experimental fan have been obtained and the flow field has been measured at the best efficiency point of each setting angle, in fixed plane downstream the rotor with a constant temperature hot wire anemometer and a periodic multisampling and averaging technique by an on line microcomputer. The parameters of radial and circumferential distribution have been obtained, and isopleth of velocity components over a blade channel are shown and flow structure at the rotor exit channel is characterized for each operating condition.

关 键 词：轴流式通风机 安装角 动叶可调 出口 流场 

分 类 号：TD441.2[矿业工程—矿山机电]