Centrifugal pump for abrasive fluid

Details Centrifugal pump for abrasive fluid Centrifugal pump for abrasive fluid

2007-01-10

2010-06-22

Edgar, Richard (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Casing having tangential inlet or outlet

C415S232000, C417S900000

Reexamination Certificate

active

07740447

ABSTRACT:
A centrifugal pump for abrasive fluid. The pump may include a bearing housing mounted to a tank containing an abrasive fluid. The bearing housing may house wear-susceptible components in a manner distancing and isolating the components from the fluid. A shaft may be coupled to the bearing housing and disposed through the tank to an impeller for dispensing the abrasive fluid beyond the centrifugal pump. Additionally the impeller itself may be housed within an impeller housing that is mechanically coupled to the bearing housing in order to enhance dimensional stability therebetween. Such a centrifugal pump may be coupled to other pumps such as higher pressure positive displacement pumps. In these circumstances the centrifugal pump may be used to facilitate the mixing of the abrasive fluid and provide a degree of pressurization thereto in advance of the fluid's use at an operation site. For example, where the fluid is a cement slurry, a triplex pump may be coupled to such a centrifugal pump for use in a cementing application at an oilfield.

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