| 摘要 |
FIELD: land reclamation and other branches of industry. SUBSTANCE: proposed reversible axial-flow pump contains impeller with turnable blades installed blades installed on shaft in chamber with stepless transfer along blade turning axle from cylinder at side of inlet into sphere corresponding to form of blade outer contour. Blades are installed on axle of turning by side wall at angle to axis of shaft turning with possibility of turning through back angle under action of differential of liquid pressure forces acting onto blades relative to axis of its turning at reversing of impeller. Flats are made on impeller on which blades are installed to thrust sides at turning through angle. Blades are made corrugated, with orientation of grooves and stiffening ribs along arcs of circumferences. Interwave grooves and stiffening ribs transfer from blade turning axle to plane of root part. EFFECT: improved performance of pump. 3 cl, 3 dwg |
