比分波胆

防爆电机的冷却方式还有哪些改进空间?

一、现行防爆电机的散热方式及限制

现行的大功率防爆电机一般采用的是水冷方式,部分小功率的防爆电机采用气冷,大部分结合使用这两种方法。国产和国外进口的大功率防爆电机在转子端部采用离心式风扇结构。离心风扇与转子转轴固定在一起,由转子带动与轴一起
旋转,产生径向风力将热量吹散出去,传给定子绕组或铁芯。定子上的热量通过定子铁芯传导给电机外壳或机座。水冷的水管安装在外壳的端部,由圆心盘旋排列至圆周。管路中的水与外壳交换热量,将热量带出。

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关键词:防爆电机

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