INTAKE DEVICE Russian patent published in 2016 - IPC E02B9/04 E02B8/08 

FIELD: instrument making.

SUBSTANCE: invention relates to hydraulic engineering, particularly to fish protection devices, and can be used for water intake of energy, industrial, household and irrigation facilities. Intake device comprises a device for charging and siphon 6, ascending branch 11 of which is provided with annular flexible pipeline 12 with openings 13. Openings 13 are connected with nozzles 14 of injected medium in form of compressed air. Compressed air is supplied under pressure through air pipe 15 in flexible pipeline 12, which is made in form of a spiral around ascending branch 11 of siphon 6. Air pipe 15 is connected with compressor 18 via air collector 16 with valve 17. Supply of compressed air is carried out by compressor 18 in response to instruction from control panel 19, wherein an air curtain forms around ascending branch 11 of siphon is 6. Nozzles 14 of flexible pipeline 12 are detachable with possibility to vary and fix their length to feed around ascending branch 11 sprayed active air medium under pressure which creates air curtain. Siphon 6 in upper part has branch pipe 7 with air intake opening 8 for communication with atmosphere. Air inlet opening 8 is covered by valve 9, equipped with a load 10 with variable mass.

EFFECT: higher reliability and providing stable operation.

4 cl, 1 dwg