Fan impeller is one of the structures of the explosion-proof axial flow fan, and the distinction between the left and right fans of the explosion-proof axial fan is very simple, so as to see whether it is clockwise rotation from the rear of the fan motor, if so, it is dextral and vice versa. As for the judgement of the angle, for example, 45 degrees or 90 degrees, the angle of the wind at its outlet is the same as the angle on the scale. Impeller, also known as working wheels, is composed of a front plate, a rear plate and a series of blades arranged between two plates. The rear plate is fastened to the wheel (shaft plate), and the key shaft is connected with the shaft of the explosion proof axial fan or directly connected with the rotating shaft of the motor. The function of the impeller is to rotate the air between the suction blades and generate the force left from the C and throw it out of the impeller to improve the air pressure. Most of the blades are pressed by steel plates, and are fixed to the front and rear plates of the impeller by riveting or welding. The basic shape of Lo blade is three types: arc, straight line and machine shape. Tags: Explosion proof axial flow fan
At present, Explosion proof axial flow fan The rectifying cylinder on the inlet is mainly used for guiding and rectifying these two functions. If there is no such part on the fan, it will affect the actual flow area of the airflow and the actual flow of the fan. Therefore, it is necessary to have this component to enhance the fan pressure and ensure the flow rate. However, the accessory of the explosion-proof axial fan is not likely to be on the small fan. The front impeller of high center ventilator usually adopts arc blade. In the backward impeller, the blades of the large fan are mostly used, and the middle and small fans are mostly made of arc and straight blades.