Low-pressure hydroelectric power station, has centripetal turbine comprising turbine foot plate positioned on height over lower water level in specific region of entire height of fall between upper water level and lower water level

摘要

The power station has an inlet (17) designed as a groove and provided with an acceleration channel (20) that increasingly tapers in flow direction. The acceleration channel has an outlet opening that opens into a turbine chamber (22) at an immediate position. A centripetal turbine (3) e.g. Francis turbine, has a turbine foot plate positioned on height (Hu) over a lower water level (27) in a region of 25 % to 50 % of entire height of fall between an upper water level (16) and the lower water level. Conical intake ports are arranged at a base of the turbine chamber or at the foot plate.