WATER FLOW DAMPER Russian patent published in 2024 - IPC E02B8/06 

FIELD: hydraulic engineering.

SUBSTANCE: invention can be used for water flow damping in end devices of closed pipelines and tunnel culverts. Water flow energy absorber comprises vertical damping chamber 3, made in form of closed sleeve, in the upper part of which on the side of discharge pipeline 19 there is bypass hole 17 located at the level of discharge tray 18, water line 1 with a vertical inlet branch pipe 2 entering chamber 3. In inner volume of chamber 3 is installed coaxially to branch pipe 2 and with vertex directed to it, cone-shaped guide element 4 with upper base 5 and a stack of thin-layer elements 6 overlapped by base 5. Each element 6 is made in the form of a funnel, assembled from separate plates 7, each of which is made in the form of an isosceles trapezoid, on the side faces of which there are flanges, bent outward funnels. In the lower base of the trapezoid there is a cutout with a flanging, bent outward of the funnel. Height of the flanging of the base of the plate is less than the height of the flanging of its side face. Upper edge of branch pipe 2 is connected to the base of nearest element 6. Above the base of element 4 there is a horizontal annular grid 12 with formation of an additional damping chamber 15. In the center of grid 12 there is hole 13 covered from above by a water-permeable metal grid 14 of a dome shape, which is placed in chamber 15.

EFFECT: invention is aimed at improvement of efficiency and reliability of the process of intensive damping of kinetic energy of water flow.

3 cl, 3 dwg