F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
F04B 43/08 (2006.01) F04F 1/08 (2006.01)
Patent
CA 2362710
The invention concerns a pneumatic pumping device for pumping liquids such as landfill leachates and polluted liquids or thick matter. The device comprises a tubular body (1) forming a pump body and defining a cylindrical main chamber (2) in the upstream and downstream ends of which respectively emerge an inlet (3) and outlet (4) for the liquid to be pumped. The pneumatic device further comprises a sleeve valve (7) arranged in front of the inlet to control the passage of the liquid to be pumped through said orifice, means (8) for controlling the opening and closure of the sleeve valve with a compressed gas, a delivery pipe (9) passing through the outlet and extending inside the tubular body over the major part of the length thereof, and means (10) for supplying the main chamber with compressed gas.
L'invention concerne un dispositif pneumatique de pompage destiné au pompage de liquides tels les lixiviats de décharge et les liquides pollués et chargés. Le dispositif comprend un corps tubulaire (1) constituant un corps de pompe et délimitant une chambre principale (2) cylindrique dans les extrémités amont et aval de laquelle débouchent respectivement un orifice d'entrée (3) et un orifice de sortie (4) pour le liquide à pomper. Le dispositif pneumatique comprend en outre une vanne à manchon (7) disposé devant l'orifice d'entrée afin de contrôler le passage du liquide à pomper par cet orifice, des moyens (8) permettant de commander l'ouverture et la fermeture de la vanne à manchon par un gaz comprimé, un tuyau de refoulement (9) traversant l'orifice de sortie et s'étendant à l'intérieur du corps tubulaire sur la plus grande partie de la longueur de ce dernier, et des moyens (10) permettant d'alimenter la chambre principale en gaz comprimé.
Ranson Jean Francois
Thurot Philippe
Environnement & Developpement Audit Conseil Efficacite Strategie
Gowling Lafleur Henderson Llp
LandOfFree
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