Goulds Pumps, Incorporated

George Wilson

Charles A Cappellino

Daniel R Roll

Douglas Paddock

Peter J Ruzicka

James C Osborne

Joseph B Dosch

Nicolas W Ganzon

A centrifugal pump of the type adapted to pump high consistency fiber suspensions includes impeller vanes having portions which are immediately adjacent the fiber suspension in the interior of a vessel from which the suspension is to be pumped. The pump additionally includes a sideplate which is mounted directly to the vessel containing the fiber suspension so as to permit the impeller of the pump-to be brought in close proximity to the fiber suspension in the vessel. The sideplate additionally includes elongated portions that extend along the outer contour of the vanes of the impeller to determine the directions from which fiber suspension enters the impeller of the pump.

Centrifugal pump for pumping fiber suspensions

A centrifugal pump of the type adapted to pump high consistency fiber suspensions includes impeller vanes having portions which are immediately adjacent the fiber suspension in the interior of a vessel from which the suspension is to be pumped. The pump additionally includes a sideplate which is mounted directly to the vessel containing the fiber suspension so as to permit the impeller of the pump to be brought in close proximity to the fiber suspension in the vessel. The sideplate additionally includes elongated portions that extend along the outer contour of the vanes of the impeller to determine the directions from which fiber suspension enters the impeller of the pump.

A method for attachment to an overhead crane for removing the bearing assembly from a vertical centrifugal pump system without removing the motor. The apparatus includes a rigid C-shaped frame which is attached by a pulley to an overhead crane and also includes a pivotal attachment on the opposite end of the frame which is removably connected to the bearing assembly. Intermediate and vertically aligned with the ends of the frame is a horizontal displacement control member which is removably connected to the bearing assembly at a point vertically above the pivotal attachment. Horizontal displacement of the horizontal displacement control member will cause a rotating of the bearing assembly about the pivotal attachment allowing clearance and lateral removal of the bearing assembly from the vertical pump system.

Method for removal of a bearing frame assembly

A dynamic shaft seal for a fluid handling apparatus for pumping fibrous slurries, the fluid handling apparatus comprising an impeller mounted on a rotating shaft disposed in a pump housing, the shaft extending through an aperture extending from the pump housing into an impeller casing forming part of the pump housing. Prime mover means rotate the shaft. A slurry of a dispersed fibrous material in a fluid is disposed in the impeller casing, and a repeller chamber is formed in the pump housing in proximity to the aperture and in communication with the impeller casing. A repeller attached for rotation with the shaft extends into the repeller chamber to force a portion of the fluid in the impeller casing to move in a vortex in a direction away from the aperture. The invention includes means associated with the repeller to apply shear forces to the fluid vortex, and create circulatory flow within the vortex to maintain the dispersion of the fibrous material in the slurry.

Dynamic shaft seal for pumping fibrous slurries

A flow directing device is provided for a fluid filled seal chamber for a centrifugal fluid pump, wherein the pump includes a seal chamber housing, a rotary shaft extending through the housing, an impeller mounted on one end of the shaft, and a rotary seal mounted about the shaft. The rotary shaft and housing define the seal chamber opening toward the impeller. A plurality of angled vanes radially depend about a circumferential portion of the seal chamber to direct the flow of fluid in the seal chamber along the rotary shaft to remove suspended solids from the rotary seal when the vanes extend in one direction, and to remove vapor bubbles from adjacent the rotary seal when the vanes extend in another direction and are coupled with a bulkhead flange.

Fluid directing device for seal chamber

An apparatus for attachment to an overhead crane for removing the bearing assembly from a vertical centrifugal pump system without removing the motor. The apparatus includes a rigid C-shaped frame which is attached by a pulley to an overhead crane and also includes a pivotal attachment on the opposite end of the frame which is removably connected to the bearing assembly. Intermediate and vertically aligned with the ends of the frame is a horizontal displacement control member which is removably connected to the bearing assembly at a point vertically above the pivotal attachment. Horizontal displacement of the horizontal displacement control member will cause a rotating of the bearing assembly about the pivotal attachment allowing clearance and lateral removal of the bearing assembly from the vertical pump system.

Apparatus for removal of a bearing frame assembly

The invention relates to a centrifugal pump particularly adapted for pumping fibrous suspensions from within a reservoir, wherein the pump includes a rotor arranged wholly within the reservoir for cooperation with the bottom wall thereof to effect fluidization of suspension and discharge of the fluidized suspension from the reservoir for passage through the pump, wherein an entrained gas, such as air, is withdrawn from the pump by means of a unique pump-out mechanism disposed rearwardly of a shroud of an impeller of the pump and including pump-out vanes and a repeller shroud cooperating with the impeller shroud and pump-out vanes to define radially opening flow paths, wherein flow openings extend across the impeller shroud for flow communication with the radially opening flow paths. The mechanism may also include repeller vanes carried by the repeller shroud to extend rearwardly of pump-out vanes.

Paper pulp centrifugal pump with gas separation

The invention relates to a centrifugal pump of the type adapted for use in pumping multiple phase liquids, i.e. liquids having entrained gas and liquids having both entrained gas and solids. The pump includes means for effecting an initial separation of gas from the liquid, as by centrifugal action, and a final separation by means of a unique pump-out mechanism disposed rearwardly of a shroud of an impeller of the pump and including pump-out vanes and a repeller shroud cooperating with the impeller shroud and pump-out vanes to define radially opening flow paths, wherein flow openings extend across the impeller shroud for flow communication with the radially opening flow paths. The mechanism may also include repeller vanes carried by the repeller shroud to extend rearwardly of pump-out vanes.

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Skaneateles, NY, United States of America

George Wilson