The difference between impeller and blade

1, definition: Impeller is a kind of rotating part commonly used in fluid machinery, which is composed of balanced sectors; Blade is one of the parts of the impeller, which is fixed on the impeller by welding or bolts, and has the function of generating or transmitting kinetic energy and static energy.

2. Function: Impeller is the central component that generates power and fluid acceleration in rotating machinery. The function of conveying, pressurizing or discharging the fluid or gas is realized by bringing the fluid or gas into or out of the equipment through rotary motion. Blade is an integral part of the impeller, which can cause the flow of gas or fluid through the momentum and reaction force generated by rotation, and realize the basic functions of the equipment.