How to Adjust Mine Axial Fan to Save Energy

1. When the speed regulation range is determined, attention should be paid to the mechanical critical speed of the unit, otherwise the unit may be damaged when the speed withers to the resonant frequency.

2. The characteristics of the withering speed device are as consistent as possible with the load characteristics of the mine axial fan, otherwise the effect is not ideal.

3. The speed change of mine axial flow fan should not be too large, the 1 speed should be between 70% 1 100%, and the minimum speed should not be less than 50% of the rated speed. Because when the rotating speed is lower than 40% 1 50%, the efficiency itself is obviously reduced, which is also uneconomical.