Centrifugal liquid pump with internal gas injection assembly

Details Centrifugal liquid pump with internal gas injection assembly Centrifugal liquid pump with internal gas injection assembly

F - Mech Eng,Light,Heat,Weapons

04

D

F04D 31/00 (2006.01) B01F 3/04 (2006.01) B01F 5/16 (2006.01)

Patent

CA 2173617

Disclosed is a centrifugal liquid pump, preferably of the rotary disc type, which incorporates a gas injection assembly of very simple yet efficient structure, whereby up to 15 % per volume of a gas such as air may be mixed with the pumped liquid. The gas injection is achieved with a gas feed pipe (33) that enters the pump through its axial inlet and with a plurality of gas injector pipes (41) that projects from the gas feed pipe radially within the impeller.

L'invention se rapporte à une pompe centrifuge à liquides, de prérérence du type à disques rotatifs, comprenant un ensemble d'injection de gaz de structure très simple mais efficace, permettant de mélanger jusqu'à 15 % par volume d'un gaz tel que l'air avec le liquide pompé. L'injection de gaz est effectuée par l'intermédiaire d'un tuyau d'alimentation (33) en gaz qui pénètre dans la pompe par l'orifice d'entrée axial de celle-ci, et d'une pluralité de tuyaux d'injection (41) de gaz qui font radialement saillie dans le rotor à partir dudit tuyau d'alimentation en gaz.

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