FISH GUIDE FACILITY Russian patent published in 2005 - IPC

FIELD: hydraulic engineering.

SUBSTANCE: invention relates to hydraulic works designed to pass fish spawners through retaining facilities to places of spawning and fattening. Proposed fish guide facility contains bottom fish guide sill installed at angle to longitudinal axis of fish pass facility and adjoining intake part of trough-fish storage, device to control longsill current with possibility of changing height mark of upper side by means of drive. Longsill current control device is made in form of shutter, flexible envelope and compressor. Shutter and flexible envelope are arranged in body of bottom sill. Shutter can be displaced vertically by changing volume of flexible envelope located from side of lower end face of shutter.

EFFECT: provision of effective control of longsill current at changes of water level in lower pond of hydraulic works.

12 cl, 13 dwg