FISH-PROTECTIVE DEVICE Russian patent published in 2007 - IPC E02B8/08 

FIELD: hydraulic building, particularly fish-protective devices included in water-intake structures and adapted for mesh web flushing.

SUBSTANCE: device comprises sectional pipes pivotally connected with each other and constituting transposition articulated modular water conduit including movable water-conveyance modules adapted to supply working flow for mesh web flushing. The transposition articulated modular water conduit may reciprocate along mesh web by means of drive including winch and cable. Movable water-conveyance modules collapse or expand during conduit movement in dependence of perforated flushing pipe movement direction. Inlet part of transposition articulated modular water conduit is pivotally connected to pressure pipe, outlet part thereof is pivotally connected to perforated pipe.

EFFECT: decreased losses during working flow supply to perforation orifices for mesh web flushing, as well as increased device and supply system reliability.

7 cl, 14 dwg