FISH PROTECTIVE FACILITY OF DIVERSION FACILITY Russian patent published in 2006 - IPC E02B8/08 

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to facilities designed to prevent getting of young fish into diversion. Proposed fish protective facility includes water intake pipe arranged horizontally with suction hole in direction of water flow, sectional suction head arranged coaxially with pipe and consisting of two perforated cylinders of different diameter, system of dispensing manifolds connected by supply pipeline with pressure line of pump, made in form of torus and arranged in base of smaller and larger diameter cylinders along their outer perimeter. Larger diameter cylinder adjoins suction hole of water intake pipe, and end face part of smaller diameter cylinder pointed in direction of water flow is blanked. Dispensing manifold are provided with outlet holes pointed to top of head and uniformly spaced over perimeter of dispensing manifolds. Additional outlet holes are made on outer surface of dispensing manifolds in middle between longitudinal planes in which main outlet holes pointed to top of head are arranged. Said additional holes are uniformly spaced over outer perimeter of dispensing manifolds. Supply pipeline is made inside head coaxially to its longitudinal axis, being connected by radial branch pipes with dispensing manifolds.

EFFECT: improved efficiency of protection of fish.

6 cl, 9 dwg