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What is the inevitable relationship between the working effi

What is the inevitable relationship between the working efficiency of the centrifugal fan and the size of the impeller
 
Centrifugal fan is a kind of high-power fan. Because of the high power of centrifugal fan, it has been widely used in many fields. So what is the working power of centrifugal fan related to?
 
In fact, it is very simple. The so-called centrifugal fan is only a form of fan. The reason why the power can be improved so much is largely due to the impeller of this fan. The so-called impeller is the fan blades of fans we usually see. Many people one-sidedly think that the power improvement of the fan is due to its faster speed. Yes, the improvement of the working power of the fan is directly related to the speed of the fan.
 
However, the impeller is a more energy-saving method, which can ensure that it uses the same electric energy while increasing the power. The impeller can improve the working power of the centrifugal fan has two advantages, one is the diameter of the impeller, and the other is the degree of skew of the impeller.
 
If the diameter of the impeller is relatively large, it means that this type of centrifugal fan is large enough. Then the power will be usefully improved, which is why fans with larger power are larger in size.
 
There is also the degree of skew of the centrifugal fan impeller. If the degree of skew is relatively small, the power will be relatively small. Conversely, if the degree of skew is greater, the power of the centrifugal fan will become greater. But this is also within a certain scale, because the degree of skew of the impeller cannot be reached to ninety degrees, at most it is within an acute angle, if not, this centrifugal fan will be in the life of the impeller. The upper is relatively short.
 
Therefore, if you want to increase the power of the centrifugal fan at the same current, you can only improve from the impeller of the fan.