| 摘要 |
<p>PURPOSE: A water wheel in a drag type with an energy concentration device is provided to be silently operated by preventing the vibration of a casing while the cavitation generated in a reaction water turbine is prevented. CONSTITUTION: A water wheel(40) in a drag type comprises an energy-concentration casing(10) and a rotor(20). The energy-concentration casing is installed in a water way(1), and increases the flow velocity of the water by collecting water in a point. The rotor is vertically installed in an outlet(13) of the casing, and rotated by the water.</p> |
