CATCHER FOR PISCICULTURAL WATER Russian patent published in 2020 - IPC E02B8/02 E02B8/08 

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to hydraulic engineering and can be used in creating piscicultural pools for the purpose of controlled removal of water from them and exclusion and injury of fish cultivated in them. Water-discharge device of fish-breeding basin 2 includes a water-regulating device made in the form of the flexible rubberized air-filled shell 4, arranged in concrete support 1 of fish-breeding basin 2 along its entire width, with support platform 5 installed on it and fish-screening net 6. Discharge of discharged water is carried out in water intake gallery 8, made with a slope throughout the width of fish-breeding basin, with its subsequent supply into pipeline. At the same time fish-screening mesh 6 is installed in frame structure 5 along the whole width of the flexible air-filled shell 4. Use of a water-flow device of a fish-breeding basin allows to ensure uniform water discharge along the entire width of the basin with controlled water exchange in its water area. Besides, the use of an air-filled system arranged in a downstream basin with a rigid fish-screening grid arranged thereon enables to exclude injury and removal of fish from the pool with water flow.

EFFECT: disclosed is a water-discharge device of a fish-breeding basin.

3 cl, 6 dwg