FRONT WATER INTAKE STRUCTURE WITH PERIODIC FLUSHING THEREOF Russian patent published in 2006 - IPC E02B8/02 E02B9/04 

FIELD: hydraulic building, particularly water intakes.

SUBSTANCE: water intake structure comprises spillway dam and water intake with two or more parallel sump chambers. The sump chambers have upper check lock and lower flushing check lock. Sump chamber bottoms are inclined in flow direction. Through section is located near the flushing check lock from lower pool side. The through section has inclination angle exceeding or equal to that of sump chamber bottom. Water accumulation tray is arranged upstream of flushing check lock transversely to water flow direction. Bottom mark of water accumulation lock is above water surface mark during sump chamber flushing. Precipitated drifts are removed from sump chambers by water flows as a result of gate manipulation. Sump chamber bottom inclination is determined from drift transportation condition. Sump chambers are provided with stream-guiding walls.

EFFECT: increased water cleaning quality and reduced costs of water intake structure building.

3 cl, 7 dwg