HYDRAULIC ENERGY RECOVERY DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an inexpensive hydraulic energy recovery device with a simple configuration, capable of being reduced in size and weight and of being easily transported. SOLUTION: The hydraulic energy recovery device 1 disposed in an open channel 2 includes: a volute casing 3 in which at least a sidewall 14 is voluted; and an air suction prevention member 26 provided inside the volute casing 3 and having a downwardly protruding lower end portion 27 positioned below a water surface S1 inside the volute casing 3. The device 1 further includes: a descending water flow tube 5 provided in communication with a bottom surface of the volute casing 3 and causing the water flowing from the volute casing 3 to flow downward; and a rotary vane 6 provided in the descending water flow tube 5 and recovering energy from the water flow. COPYRIGHT: (C)2010,JPO&INPIT