高压电动机离心风扇改进研究  

Study on Improvement of Centrifugal Fan in High-Voltage Motor

作　　者：王鸿鹄 余晓松[2] 郑龙平 

机构地区：[1]上海电机系统节能工程技术研究中心,上海200063 [2]海军驻上海711所军事代表室,上海201108

出　　处：《电机与控制应用》2015年第6期17-20,共4页Electric machines & control application

基　　金：国家科技支撑计划课题(2013BAF01B01)

摘　　要：在高压电动机的损耗中风磨耗占了较大的比例。由于在风扇选型中必须考虑冷却效果,除了两极采用轴流风扇外,四极及以上高压电动机普遍采用离心式风扇。普通径向离心式风扇的叶片间涡流较大,致使风扇本身的效率较低,不利于提高电动机的效率,而后倾式离心风扇虽然效率较高,但仅适用于单向旋转,不利于电动机的通用性,所以需要设计一种效率较高又能兼顾通用性的风扇。提出一种高压电动机普通径向风扇改进方法,能够有效的减少风扇叶片间的涡流,从而降低电动机机械损耗,提高电动机效率。The wind wear accounted for a large proportion in the high voltage motor loss. Due to the cooling effect, in addition to the axial flow fan used in the double-pole motor, the centrifugal fan is generally used in the high voltage motor of the four poles and above. The efficiency of ordinary radial centrifugal fan is lower, because there is a large eddy current between blades, this is not conducive to improving the efficiency of the motor. Although the backward centrifugal fan has a higher efficiency, however, the fan isonly suitable for unidirectional rotation, and is not conducive to the universal of the motor. So it is necessary to design a fan with a higher efficiency and a different rotating direction. This paper presents a method for improving the ordinary radial fan of high voltage motor, which can effectively reduce the eddy current between blades, reduce the mechanical loss of the motor, improve motor efficiency.

关 键 词：高压电机 风扇 涡流 效率 

分 类 号：TM303[电气工程—电机]