WORKING AND CONSTRUCTION OF VANE BLOWER

CONSTRUCTION :

It consists of rotating drum, spring - loaded vanes, inlet and outlet ports and casing. The rotor is located eccentrically inside the casing. The rotor carries a set of spring - loaded vanes. These spring loaded vanes are made of fiber of carbon.

WORKING :

When the power is given to a vane blower, rotating drum (rotor) rotates, and the air is trapped between two consecutive vanes. As the rotation takes place the trapped air first expands and then gradually compressed due to decreasing volume between rotor and outer casing. This partially compressed air is delivered to the receiver. When the outlet is opened, there is a back flow of high-pressure air from receiver will rush back and mix up with the entrapped air. So, partially compressed air pressure is further increased. Finally, high - pressure air is delivered from the receiver. In vane blower, the pressure of air is increased first by decreasing the volume and then by back flow of air.

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Mechinopedia For Mechanical Engineers

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