The Brushless EC Centrifugal Blower Fan is a machine that is widely used in industrial production. It completes dust removal and other work for the industrial production process by blowing air, ensuring the normal progress of industrial production. The following will take you to understand the performance characteristics and working principle of the Brushless EC Centrifugal Blower Fan.

The Brushless EC Centrifugal Blower Fan is essentially a variable flow and constant pressure device. When the rotational speed is constant, the pressure-flow theoretical curve of the Brushless EC Centrifugal Blower Fan should be a straight line. The actual characteristic curve is curved due to internal losses. The pressure developed in the Brushless EC Centrifugal Blower Fan is greatly affected by changes in intake air temperature or density. For a given intake air volume, the highest intake air temperature (lowest air density) produces the lowest pressure. For a given pressure versus flow characteristic curve, there is a power versus flow characteristic curve. When the blower is running at a constant speed, for a given flow, the required power increases as the intake air temperature decreases.
The working principle of the Brushless EC Centrifugal Blower Fan is basically the same as that of the turbo compressor, except that the gas flow rate is low and the pressure change is not large. Generally, the change of the gas specific volume does not need to be considered, that is, the gas is treated as an incompressible fluid.
Brushless EC Centrifugal Blower Fan is based on the principle of converting kinetic energy into potential energy, using a high-speed rotating impeller to accelerate the gas, then decelerate and change the flow direction, so that the kinetic energy is converted into potential energy (pressure). In a single-stage Brushless EC Centrifugal Blower Fan, the gas enters the impeller from the axial direction, changes to radial as the gas flows through the impeller, and then enters the diffuser. In a diffuser, the gas changes the direction of flow causing a deceleration, which converts kinetic energy into pressure energy. The pressure increase occurs mainly in the impeller, and secondly in the diffusion process. In the multi-stage Brushless EC Centrifugal Blower Fan, a recirculator is used to move the air flow to the next impeller, creating a higher pressure.
The blades of Brushless EC Centrifugal Blower Fan can be divided into three types: backward bending, forward bending and radial according to the size of the outlet installation angle. The bending direction of the backward curved blade is opposite to the rotation direction of the impeller, and the outlet installation angle is less than 90 degrees; the outlet direction of the radial blade is radial, and the outlet installation angle is equal to 90 degrees; the bending direction of the forward curved blade is the same as the rotation direction of the impeller, The outlet installation angle is greater than 90 degrees.
Brushless EC Centrifugal Blower Fan is available in both right-handed and left-handed versions. Viewed from the side of the motor: the impeller rotates clockwise, which is called a right-handed fan; when it rotates counterclockwise, it is called a left-handed fan.
To sum up, the Brushless EC Centrifugal Blower Fan is a variable flow constant pressure device that works similar to a turbo compressor, but with a lower gas flow rate. It follows the principle of converting kinetic energy into potential energy, and accelerates the gas to complete its own function. The blades of the Brushless EC Centrifugal Blower Fan also come in different types with different rotations.