| 摘要 |
FIELD: hydraulic engineering.SUBSTANCE: invention relates to hydraulic engineering, namely to devices for water extraction of the channels with high inclination. Drainage outlet includes feed channel 1, from which water enters the water intake and deposits move along screen nets 4 and are discharged in transit channel 3. Part of water is supplied through bottom slot in first chamber 5 with local narrowing, inner surface of which is shaped to truncated cone installed smaller base towards gallery 6. Gallery 6 is extended in straight line in the direction of flow, and its end is connected with a wide base of the second chamber 7 with inner surface also has the shape of cone, which provides the 6 pressure mode and no water movement, prevents the vortex formation in gallery 6. After chamber 7, the output of which has taper smaller base, water flow is supplied into intermediate expanded section in the form of rounded in plan elbow 8 with converging transition part coupled with end section in the form of diffuser 9, and then is supplied in still tate in discharge pipeline 10 at open gate 11. Cavity of knee 8 on the side of convex face is connected via pipeline 12 with tapered parts chambers 5 and 7 for water inflow in vacuum zone that fills all the cross section of bend 8.EFFECT: simplified design, reduces dynamic effect of structural elements on each other, improves the dynamic properties of the flow and improves hydraulic mode of the structure.2 cl, 2 dwg |
