TIDAL POWER PLANT Russian patent published in 2009 - IPC E02B9/08 F03B13/26 

FIELD: engines and pumps.

SUBSTANCE: invention is intended for conversion of sea tides energy. Power plant comprises body with open inlet and outlet installed on vertical shafts of rotation connected to power generators, hydraulic turbines in the form of drums, on external surfaces of which vanes are fixed. At body inlet and outlet vertical shields are installed, which direct tide flow to vanes of hydraulic turbines with provision of their rotation. Drum representing hydraulic turbine consists of cones connected with bases, on external surfaces of which vanes are fixed along helical line so that beginning of each vane on lower top of drum cone is displaced along with its rotation direction relative to the end of vane at the second upper top by 1-2 steps of vanes. On lower cone parts of drum vanes have shape of rotation in the form of cylinder, and in upper part of drum vanes repeat cone shape during rotation, which is increased by double value of vane. On lower cone part of drum, which makes 1/3 of the whole drum, number of vanes is doubled, and width of passage hole between drums in lower part is equal to double size of vane in the area of drum cone bases connection. Rotary vertical stems of tidal shields are installed from longitudinal axis of body symmetry on both sides at distance, which does not exceed diametre of drum lower part rotation, and ebb shields - from side of body at the distance equal to radius of drum lower part rotation.

EFFECT: higher efficiency of tide energy conversion into electric energy.

3 cl, 3 dwg