Centrifugal pump with an improved axial diffusor.

摘要

The invention provides a centrifugal pump having an axial diffusor (12) with plural blades (16) having such a specific incident angle ( beta G) as to prevent appearance of revolving and stall of a treating liquid. The incident angle ( beta G) of the blades (16) of the axial diffusor (12) is so determined that a value provided by a subtraction from the blade incident angle ( beta G) by a treating liquid incident angle ( alpha G) is equal to or below a specific angle defined by a kind of treating liquids. <IMAGE>