节约能源是我国国民经济发展中一个十分重要的任务。在选择设备的时候,要注意设备效率,以利节约能源。为此,笔者试图对常用的前倾和后倾叶片的离心风机进行粗浅的分析,供在选择风机时参考。 Saving energy is a very important task in the development of our national economy. In the choice of equipment, pay attention to equipment efficiency, in order to save energy. To this end, I tried to analyze the commonly used forward and backward centrifugal fan centrifugal blade for reference when selecting fans.