FIELD: hydraulic engineering, particularly to protect young fish in water intake structures built in running or still water.
SUBSTANCE: hatchway includes re-distribution device for young fish, forebay, conical jet guiding screen, water permeable barrier, inlet pipeline and fish pass. Forebay walls are parallel to jet guiding screen walls. The fish redistribution device has taper angle of 70°-110°. The water permeable barrier may be of netted type and may have cylindrical shape. Fish pass may have controllable ejection means.
EFFECT: increased efficiency of larva and young fish protection.
4 cl, 1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FISH PROTECTIVE FLOW-OVER HEAD | 2003 |
|
RU2250297C2 |
| FISH CONSERVATION WORK | 2003 |
|
RU2234568C1 |
| STREAMLINED FISH PASSING MOUTH | 2005 |
|
RU2298063C1 |
| FISH-PROTECTIVE DEVICE | 2006 |
|
RU2310036C1 |
| METHOD OF PROTECTING FISH AND OTHER AQUATIC ORGANISMS FROM ENTERING WATER INTAKE STRUCTURE, METHOD OF PROTECTING WATER INTAKE STRUCTURES AND FISH PROTECTION DEVICE FROM BIOLOGICAL FOULING, FISH PROTECTION DEVICE | 2016 |
|
RU2619242C2 |
| COMPLEX FISH PROTECTING DEVICE | 2015 |
|
RU2602446C2 |
| FISH-PROTECTION STRUCTURE OF INTAKE WORKS | 2011 |
|
RU2465396C1 |
| COMPLEX FISH PROTECTING DEVICE | 2015 |
|
RU2608023C1 |
| FISHWEIR OF WATER WORKS | 0 |
|
SU1671766A1 |
| FISH-PROTECTION ARRANGEMENT | 1994 |
|
RU2073770C1 |
