公开(公告)号：US10907639B2

公开(公告)日：2021-02-02

申请号：US16469834

申请日：2017-12-14

Applicant: FLSmidth A/S

Inventor： Kenneth Lloyd Don ,  Luis Fernando Echeverri ,  John Semple Frater

IPC: F04D13/16 ,  F15D1/00 ,  F16L58/10 ,  F16L57/06 ,  F04D29/42 ,  F04D29/68 ,  F04D29/70 ,  F15D1/02

Abstract: A suction pipe inlet device for a centrifugal pump, the device having a hollow tubular axisymmetric body along a longitudinal axis having an open first end adapted for fitting into or against a retention tank; an open second end adapted for fitting into or against an inflow end of a suction pipe having an outer pipe diameter and an inner pipe diameter; a converging section located closer to the retention tank; a diverging section located closer to the suction pipe; a throat located at the intersection point between the converging and diverging sections, the converging and diverging sections defining an interior converging-diverging geometry within the tubular axisymmetric body and the throat defining a minimum inner cross sectional area of the tubular axisymmetric body.