Turbine with a downstream tube

Details Turbine with a downstream tube Turbine with a downstream tube

F - Mech Eng,Light,Heat,Weapons

03

B

F03B 13/08 (2006.01) F03B 13/10 (2006.01)

Patent

CA 2480988

When using turbines or turbine-generator units to generate electrical energy, it was hitherto necessary for their tubes arranged downstream, for example suction tubes, to open out completely into the tailwater. The present invention now discloses a turbine or turbine-generator unit, in particular a module of such turbine-generator units, with connected tube, in which, for operation with a liquid level which is low or absent downstream of the turbine, a means is provided which makes it possible to at least partially prevent the flow from becoming detached from the tube, so that the turbine can be operated with a very good efficiency even if the tube does not open out completely into the tailwater, but rather opens out partially or even completely into the open air.

L'utilisation de turbines ou de génératrices à turbines destinées à la production d'énergie électrique nécessitait jusque là que les tuyaux desdites turbines, disposés en aval, par exemple des tuyaux d'aspiration, soient entièrement immergés dans l'eau d'aval au niveau de leur embouchure. L'invention concerne une turbine ou une génératrice à turbines, notamment un module de telles génératrices à turbines, comportant des tuyaux connectés en aval, et pourvu d'un organe destiné à l'utilisation des turbines lorsque le niveau d'eau aval est faible ou nul. Ledit organe permet d'empêcher au moins partiellement un détachement du courant sur le tuyau de manière que la ou les turbines peuvent être employées avec un très bon rendement, même lorsque l'embouchure n'est pas totalement immergée, c.-à-d. partiellement immergée, voire lorsque l'embouchure n'est pas immergée du tout.

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