Centrifugal pump with multiple inlets

F - Mech Eng,Light,Heat,Weapons – 04 – D

Patent

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Details

F04D 31/00 (2006.01) F04D 7/04 (2006.01) F04D 15/00 (2006.01) F04D 29/42 (2006.01) F04D 29/70 (2006.01)

Patent

CA 2398338

A centrifugal pump (10) having a pump housing (40) that defines a substantially axial inlet port (32), a substantially radial inlet port (34) and an outlet port (30). An impeller (42) is rotatable within an impeller chamber (58) defined by the housing and is operative to pump fluid from one or both of the inlet ports to the outlet port when the impeller is rotated. A removable cleanout assembly (82) located within and forming part of the axial port includes a structure for supporting a wear plate (76) that is positioned axially adjacent the impeller. The cleanout assembly includes an inlet opening adapted to be configured as an axial inlet port to the pump. The cleanout assembly is removable in order to provide access to the impeller for service or cleaning. Either the axial port or the radial port can serve as an inlet or, alternately, both ports can serve concurrently as inlets to the pump. Mounting flanges (88) associated with each inlet port are adapted to connect to inlet conduits or a cap member.

La présente invention concerne une pompe centrifuge dont le corps (40) définit un orifice d'admission sensiblement axial (32), un orifice d'admission sensiblement radial (34) et un orifice de refoulement (30). Une turbine (42) capable de rotation à l'intérieur de la chambre de turbine (58) définie dans le corps de pompe, a pour fonction de faire passer un fluide de l'un au moins des orifices d'admission à l'orifice de refoulement pendant sa rotation. Un ensemble à regard de nettoyage (82) situé dans l'orifice axial dont il fait partie intégrante, comporte une structure servant de support à une plaque d'usure (76) axialement disposée au voisinage de la turbine. L'ensemble à regard de nettoyage comporte un orifice d'admission conçu pour être configuré en orifice axial d'admission de la pompe. L'ensemble à regard de nettoyage est amovible de façon à permettre un accès à la turbine pour l'entretien ou le nettoyage. L'admission peut se faire soit par l'un ou l'autre des orifices d'admission, soit par les deux. Des brides de montage (88) associées à chacun des orifices d'admission sont conçues pour un raccordement aux conduits d'admission ou à un élément capuchon.

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