FLOODGATE APPARATUS FOR OVERFLOW CONTROL OF THE TIDAL GENERATING STATION OF LAGOON TYPE

摘要

The present invention relates to a floodgate device of a basin type tidal power plant, capable of securing drainage generation water or water generation drop. The device includes an arc floodgate opened and closed by a hydraulic device along a hydraulic floodgate trace in a pier vertically formed from a waterwheel generator or double current type waterwheel to an upper plate of a power plant or Su-wol-gu floodgate formed into a plane floodgate opened and closed by a burton along a waterwheel groove in order to use a residual space formed in the double current type waterwheel or waterwheel generator. As the height is adjusted by attaching a pair of outer doors to an upper part of the Su-wol-gu floodgate in a tidal power plant having a small gap between a water storage level and an upper plate of the power plant, a power generation drop is maintained until the power generation is finished and then as drainage generation water or water generation drop is additionally secured until high tide or ebb tide, the size of an exclusive floodgate for securing the drainage generation water or water generation drop is reduced or the device is replaced for the waterwheel generator including a sub floodgate.