FIELD: reclamation of soil.
SUBSTANCE: invention relates to the field of reclamation and can be used as a fish protection apparatus on water intake structures and canals for reclamation purposes. Mobile fish protection apparatus installed in front of the water intake window and consisting of a collector with water jet nozzles for the creation of a volumetric hydraulic screen and flow-forming elements creating a counterflow directed towards the water intake flow at speeds exceeding the speed of the approach flow, thereby ensuring that fish are removed from the active water intake area to the safe water source area, according to the invention, has an autonomous water purification and supply system containing series-interconnected intake chamber for water, a filter for the mechanical purification thereof, and a driven pump communicating with the collector with the water jet nozzles installed thereon, wherein the flow-forming elements are arranged coaxially with said nozzles at a distance of 3 to 10 cm, made in the form of cones with an opening angle of 60 to 130° with the vertices directed towards the water jet nozzles. A lattice is installed on the bases of the cones, with the nodes arranges coaxially with the centres thereof and, accordingly, with the water jet nozzles. The lower part of the collector is hinged to the lower part of the water intake window so as to ensure that the angle of inclination of the collector can be changed by 70 to 90°.
EFFECT: higher effectiveness of protection of young and larval fish from dying by ensuring uniform pressure on the aquatic fauna, created by a volumetric counterflow along the flow section of the prismatic water intake channel using a mobile fish protection apparatus.
1 cl, 6 dwg
