通风机进口节流调节特性的试验及分析  

Experiment and Analysis on the Throttle Adjustment for the Inlet of Centrifugal Fan

作　　者：倪景锋[1] 刘翔翔[1] 张利 吴民强 

机构地区：[1]华北电力大学动力工程系,北京102206

出　　处：《华北电力大学学报（自然科学版）》2000年第1期46-49,共4页Journal of North China Electric Power University：Natural Science Edition

摘　　要：按国标《通风机空气动力学性能试验方法》的规定和要求，在某型号通风机上进行了出口节流与进口节流的对比实验，得出了与传统观点不一致的结果：只有当入口节流调节在风机的入口前形成强制正预族流动的特殊情况下，入口节流调节才会比出口节流调节省电，其余情况均是出口节流比人口节流调节省电。According to traditional Views, the electricity consumption of a centrifugal fan which adopts throttle adjustment at inlet is less than that of which does at outlet, bat formal experiment and convincing theory have not been found so far. So a contrastive experiment is carried out on the electricity consumption of the throttle adjustment for the inlet and outlet of a certain type of centrifugal fan based on GB 1236-85 <TEST METHODS OF AERODYNAMIC PERFORMANCE FOR FANS>. A conclusion which is opposite to the traditional view was drew. This paper verifies the fact that the electricity consumption of a centrifugal fan will be less only if the centrifugal fan adopts throttle adjustment at inlet and the pre-rotation is caused at inlet than that of the centrifugal fan which adopts throttle adjustment at outlet.

关 键 词：离心通风机 节流调节 试验 耗电特性 通风机 

分 类 号：TK223.26[动力工程及工程热物理—动力机械及工程] TH432[机械工程—机械制造及自动化]