Impeller of airfoil centrifugal pump

The utility model discloses a wing-shaped centrifugal pump impeller. The impeller comprises an impeller body composed of a front cover plate, a rear cover plate and a plurality of blades fixedly installed between the front cover plate and the rear cover plate. The front cover plate comprises a front cover plate top surface and a front cover plate bottom surface; a front cover plate water passing hole penetrates through the middle of the top face of the front cover plate and the middle of the bottom face of the front cover plate, the rear cover plate comprises a rear cover plate top face and arear cover plate bottom face, a rear cover plate water passing hole penetrates through the middle of the top face of the rear cover plate and the middle of the bottom face of the rear cover plate, anda plurality of balance holes for discharging high-pressure liquid are further formed in the rear cover plate. Compared with a traditional straight blade impeller, the blades in the design can generate high lift, and a fluid f