FIELD: building.
SUBSTANCE: invention concerns hydraulic engineering building, namely, to the ways intended for attraction and transfer of fish through retaining constructions to places of spawning and fish-growing period. The way of attraction and passage of fish from the bottom pool of the waterworks facility in a headwater consists in formation of the raceway on all length of the operated water stream depending on a difference of levels top both bottom pools and the sort of passed fish, created in each chamber of the raceway as a result of water flow feed in the stream creating nozzles located on perimetres of inlet apertures, or is direct in the inlet apertures, or in the independent channels executed in dividing walls, and directed towards a headwater, the subsequent formation parallel or at an angle to an axis of the inlet aperture of numbers of overflowed parallel hydraulic streams, and streams can be preliminary tightened up, and creation at joint interaction of these numbers of streams of hydraulic resistance to the basic stream arriving using the raceway through the chambers from the headwater, and by that favorable conditions for passage of fish through the inlet aperture towards the headwater. General average pressure on a retaining construction is split into equal parts. Thus sizes of pressures of the water falling to dividing walls fish way, establish for each dividing wall of the raceway separately. Water intake, necessary for formation of hydraulic streams on perimetres of all inlet apertures; carry out from chambers of the raceway where these obtained streams are directed. From the headwater in bottom pool through all inlet apertures of the raceway, submit transit the involving stream formed by an additional pressure in such a manner that speeds of an involving stream in the raceway establish below taking down, and in the inlet apertures - lower than springing ones. Thus an estimation of size and a direction of speed of an involving stream give by means of monitoring the raceway.
EFFECT: creation on all length of the raceway the uniform and stable involving stream which is not dependent on vacillatings of heights of water in the pools of the waterworks facility, attraction of fish raising efficiency in the raceway and its skip in the waterworks facility headwater.
7 cl, 4 dwg
