Working Principle of a Blower

The working principle of a blower is based on the kinetic energy transfer theory in fluid mechanics. When the impeller rotates at high speed driven by a motor, momentum exchange occurs between the blades and gas molecules. Under the action of centrifugal force, the gas is thrown out along the outer edge of the impeller, forming a high-pressure airflow. This energy conversion process follows Bernoulli's equation, that is, the sum of kinetic energy and static pressure energy is conserved. Compared with ordinary fans, blowers effectively convert the kinetic energy of gas into pressure energy through a specially designed volute structure, with a typical pressure range of 0.1-1.5 kgf/cm², which is the key to its ability to deliver air over long distances.