FISH-PROTECTIVE DEVICE OF WATER-INTAKE STRUCTURE Russian patent published in 2007 - IPC E02B8/08 

FIELD: hydraulic structures, particularly fish-protective devices included in water-intake structures.

SUBSTANCE: fish-protective device comprises filter arranged in waterway and made as case filled with filtering members. Filtering members are spaced apart horizontal plates stacked in vertical direction so that gaps are created in-between. Inserted in the gaps are pads. Plates and pads are formed of resilient porous material. Cleaning means adapted to clean filter of rubbish is made as rigid horizontal plate located in upper filter part over plates and connected with drive through rigid drawing bars. Rigid plate and filtering members have ends installed in guiding means. Rigid plate is provided with corrugated perforated screen located in upper part thereof and connected to longitudinal guiding means of toggle connection. End parts of central guiding means included in toggle connection are inserted in vertical guiding means formed from inner sides of rigid driving bars. Filtering member plates are arranged inside case made of vertical rods installed from waterway and water intake sides.

EFFECT: increased operational efficiency.

8 cl, 11 dwg