板焊类离心式高效模型风机的试验研究  

Experimental Investigation on High-efficiency Welding Centrifugal Fan

作　　者：林梅[1] 王斗[1] 闻苏平[1] 张利民[2] 段纪成[2] 

机构地区：[1]西安交通大学,陕西西安710049 [2]陕西鼓风机(集团)有限公司,陕西西安710611

出　　处：《流体机械》2005年第4期1-4,12,共5页Fluid Machinery

摘　　要：通过对板焊类离心式高效模型风机叶轮进行轴向和径向切割后的性能试验,得到了其相对于标准机号的性能曲线的拓展范围。同时也得到了叶轮宽度和直径变化的最大范围,并提出了这类高效模型风机的压力系数计算公式及叶轮冲角的范围。另外,试验结果还表明采用三元流空间叶片可提高模型风机的性能。The performance characteristics of standard No. welding centrifugal fans is experimentally investigated by cutting impellers either axially or radially. The extended range of performance curves , as well as the maximum width and diameter of the cut impellers are obtained. In the meantime, both the pressure coefficient correlation and the incidence range are proposed respectively. Moreover, The performance characteristics of the model centrifugal fans can be improved by using three-dimensional flow blade.

关 键 词：叶轮切割 损失计算 压力系数 三元流空间叶片 

分 类 号：TU834.4[建筑科学—供热、供燃气、通风及空调工程]