CONTROLLED WATER DRAINAGE STRUCTURE Russian patent published in 2018 - IPC E02B8/02 E02B8/06 

FIELD: construction.

SUBSTANCE: invention is a controlled water drainage structure for fish ponds comprising: a vertical hollow tower consisting of at least two coaxially arranged vertical cylindrical pipes, one of which is fixed to the bottom of the reservoir, where fixed pipe 10 is hermetically connected to drainage pipe 5 buried in the bottom, while others are configured to be moved and rotated by means of mechanized manual and automated means, during which a smooth, without hydraulic shocks, opening or switching of input ports 8 changing the depth of the water discharge level from the reservoir. In a particular embodiment of the invention with two moving tubes 12, by means of the same mechanization and automation means, calibration grids can be replaced at input ports 8 of the water discharge. Figure shows a longitudinal axial section of a manually operated drainage structure.

EFFECT: wider functionality of the drainage structure, both static and dynamic, is provided, and the reliability, efficiency and durability of the entire structure are increased.

25 cl, 1 dwg