Various types of impeller vane shapes are used in centrifugal pump engineering. They include the conventional axial, mixed flow and radial vane forms; however, a differentiation between different flow directions (i.e. from the inside to the outside or vice versa) is not made.
The vanes of a centrifugal pump are either permanently fixed to or fitted in the impeller or diffuser so as to allow adjustment.
The external shape of the vane is usually given as a circular projection in the meridian section (longitudinal section along the pump’s rotation axis). Various types of impeller vane shapes are used in centrifugal pump engineering.
A pump with such receiving guide vanes is called a turbine pump. The angles of the guide vanes at their receiving tips are such that the water enters the guides without shock. The guides are fixed over a circular ring. The ring with the guide blades is called a diffuser.
Post time: Apr-15-2021