If a centrifugal fan can work normally after assembly, it can not be separated from every component and their cooperation. So we must ensure the effectiveness of each component on the centrifugal fan. It is of great significance to the blades of a centrifugal fan.

The centrifugal fan can achieve the effect of ventilation and ventilation. It is mainly generated by blades. And we can also find that there are some differences in the number of blades of different fan types, and the results obtained are also different.

It can be seen that the centrifugal fan should not only consider the quality of the blade, but also take into account the number of the blades. For each type of impeller, there is an ideal number of blades, of course, to determine the number of blades, sometimes depending on the experience of the designer.

Secondly, the centrifugal fan blade outlet angle is designed to be considered one of the parameters, different blade outlet angle of blade have different classification, including strong blade, curved blade, bending straight blades, bending the wing blade, radial outlet straight radial blades, blade, blade strong, blade and so on, are used in the fan in different.

When selecting a centrifugal fan blade, it also involves the selection of blade type. When the fan is at a certain speed, the pressure coefficient of the backward impeller is smaller, and the impeller diameter is larger, and its efficiency is higher. For its forward impeller, it is just the opposite. Therefore, we must calculate the diameter of the fan blade according to the actual situation of the fan, so as to choose the blade suitable for the centrifugal fan.

It is not only the blade, any other component of the centrifugal fan must be like this careful choice, in order to ensure that the day after the centrifugal fan can achieve efficient working condition.