FIELD: construction.
SUBSTANCE: fish protection of off-shore structure water intake comprises a bottom flow-forming rapid, an airlift that creates an air-bubble curtain, a fish outlet and a bottom water intake. The fish protection device is equipped with a water-receiving chamber, in the bottom of which there is a bottom water intake. In the water-receiving chamber there is an airlift arranged in the form of a pontoon, at the bottom of which there is a flow course suppressor attached with a gap for flow outlet. The lower end of the suppressor is connected with a water-receiving pipe. Above the pontoon there is a distributing header, above which there is a fish collector, the outlet nozzle of which is connected to the fish outlet. The bottom flow-forming rapid is arranged in the form of a head with a slot water receiver.
EFFECT: increased efficiency of fish protection, including roe, larvae and early baby fishes.
7 cl, 3 dwg
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