| 摘要 |
FIELD: hydraulic engineering. ^ SUBSTANCE: invention relates to methods and facilities designed for passing fish spawners through retaining facilities to places of spawning and fattening. Method comes to delivery of transit flow from side of spillway dam, forming longitudinal screw roller along headless side of bottom fish guide sill by setting sill at acute angle to transit flow and delivering attraction water to inlet hole of trough-fish storage. When forming longitudinal screw roller, part of transit flow passing higher than bottom sill side is redistributed in direction perpendicular to side surface of bottom sill towards longitudinal axis of trough-fish storage. In case of water rise in lower pond, using closed louver slats, water tight plane is formed above upper side of sill making it possible to form bottom fish guide sill of greater height. Fish guide includes bottom fish guide sill installed at angle to longitudinal axis of fish facility and adjoining inlet part of trough-fish storage, device to control longsill current whose position can be changed by means of drive which is made in form of system of louver slats installed on upper edge of bottom fish guide sill and connected with drive. Surface of louver slats can be perforated. ^ EFFECT: provision of effective control of, longsill current. ^ 4 cl, 7 dwg |
