CENTRIFUGAL PUMP FOR HANDLING ABRASIVE-LADEN FLUID

摘要

A centrifugal pump for handling abrasive-laden fluid is described. A centrifugal pump system for handling abrasive-laden fluid includes an impeller including an annular balance ring extending longitudinally on a top side of the impeller and an annular skirt extending longitudinally on a bottom side of the impeller, one of the annular balance ring, the annular skirt or a combination thereof having portions defining a plurality of apertures, wherein the plurality of apertures form an abrasive-media relief path that bypasses at least a portion of a clearance gap and merges with a primary working-fluid flow path. A centrifugal pump impeller includes a bottom shroud, an annular skirt extending longitudinally upstream from the bottom shroud, the annular skirt encircling a central hub, and the annular skirt having an aperture extending through a thickness of the annular skirt.

主权项

1. A centrifugal pump impeller comprising:
a hub securable to a centrifugal pump shaft, the hub comprising:
a tubular portion;a flared portion extending from a downstream side of the tubular portion;a rim of the flared portion forming a platform extending radially from the centrifugal pump shaft; an annular balance ring extending longitudinally downstream from the platform,
wherein the annular balance ring has at least one aperture extending through a thickness of the balance ring.