FRONT-ENTRANCE WATER INTAKE Russian patent published in 2008 - IPC E02B9/04 E02B8/02 

FIELD: hydraulic structures, particularly intake structures to take water for economic needs.

SUBSTANCE: front-entrance river water intake comprises spillway dam and water intake with two or more parallel setting chambers and transversal water-accumulation gutter having bottom located over water surface during setting chamber flushing. Width of side setting chamber in plane view in stream direction gradually increases in accordance with the equation y=(2h/S² _ch)(x²/2), where h is assumed expansion in the end of side setting chamber, S_ch -s length of side setting chamber. Side walls of transversal water-accumulation gutter may rotate about fixed axis by means of driving mechanism.

EFFECT: possibility to increase water cleaning efficiency due to transversal water-accumulation gutter wall rotation and possibility of water taking from upper, clean, layers inside setting chambers.

8 dwg