FISH PROTECTION WATER INTAKE UNIT Russian patent published in 2011 - IPC E02B8/08 

FIELD: construction.

SUBSTANCE: fish protection water intake unit consists of a suction nozzle 6, connected via a pump 5 with a discharge pipeline 3 and equipped with a rotary mesh drum 9, which is placed into a cylindrical jacket with a fish outlet 7. A fixed washing accessory 8, designed to clean a webbing net with water jets, is connected to a pipeline 1 to supply water, which is connected with the discharge pipeline 3 on a section arranged behind the pump. The pipeline for water supply into the washing accessory is equipped with a valve 2 with an electric drive, an electric motor 15 of which is connected via a magnetic starter 14 with a time relay 13 and a reverse. The relay 13 is connected with a membrane vacuummeter 11, equipped with a pressure sensor 12 and installed on a suction nozzle 6. The suction nozzle is equipped with a valve 4.

EFFECT: invention operates in an automatic mode with periodical cleaning of a fairing, which makes it possible to reduce energy consumption for hydraulic cleaning of a device and to increase volume of water supplied to a consumer.

1 dwg