ENERGY RECOVERY DEVICE

摘要

The present invention relates to an energy recovery device including a central compartment (11) in which a turbine (313) is arranged and which is positioned between at least first and second compartments (123, 127). Liquid flows between the compartments via side valve systems (14...17) and a central throttling channel (18). One specific feature is that an adjustable stopper (13) is arranged substantially at the throttling channel. The device may consist of a second turbine that controls head losses and makes it possible to feed the main turbine (313) located above, in the vortex.