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The difference between a forward-inclined centrifugal fan and a backward-incline
Today, the editor will talk about the difference between a forward-inclined centrifugal fan and a backward-inclined centrifugal fan from three angles.
They are: power, energy consumption, and noise.
First of all, let us see, what is a forward-inclined centrifugal fan and what is a backward-inclined centrifugal fan?
Centrifugal fans are divided into forward-inclined centrifugal fans and backward-inclined centrifugal fans by the blades of the assembled fans.
The forward-inclined type is generally a blower, and the backward-inclined type is an induced draft fan.
The difference is the length of the impeller hub and the edge of the impeller. The forward inclination is parallel to the edge of the impeller.
The exit angle of the impeller is greater than 90 degrees, and the forward impeller is also called the forward impeller. The forward impeller is mostly at medium pressure.
The backward tilt and the impeller are not parallel, and the length is a few centimeters or a few millimeters from the edge of the impeller. It means that the exit angle of the impeller is less than 90 degrees. The backward tilt impeller is also called the backward impeller. The backward impeller is mainly high pressure.
The difference between forward-inclined centrifugal fan and backward-inclined centrifugal fan is mainly manifested in these three aspects:
1. Power: The static pressure head used to overcome the resistance of the system, the forward-inclined centrifugal fan is smaller than the backward-inclined centrifugal fan.
Since the channel in the backward inclined blade fan is gradually enlarged, the negative force loss is smaller than that of the forward inclined fan.
Therefore, the efficiency of forward-inclined centrifugal fans is lower than that of backward-inclined centrifugal fans.
2. Electricity consumption: Since the efficiency of the forward-inclined centrifugal fan is lower than that of the backward-inclined centrifugal fan, its electric power consumption is greater than that of the backward-inclined centrifugal fan.
3. Noise: The operating noise of the forward-inclined centrifugal fan is greater than that of the backward-inclined centrifugal fan.
Both forward and backward centrifugal fans have their own advantages and disadvantages, you can choose according to the actual situation, try to give full play to the maximum function of the centrifugal fan, create greater value
