| 摘要 |
FIELD: construction.SUBSTANCE: dissipating device comprises a flow conduit 1 with shoulder 2 in the annular chamber 3, conjugated with the additional square chamber 4. Dissipating chamber 3 is provided with longitudinal walls 5, attached on the bottom by the additional rectangular dissipating chamber 4 in the form of two vertical water escape separating walls parallel to its walls, and at the outlet section of annular chamber - convergently at an angle to one another. The upper end of walls 5 of confuser has wall 16 radially incurved, mounted with gap to opposite free gap between the sidewalls of chamber 3. The lower end of vertical baffles 5 to the side of tailrace channel 15 is located in front of the flushing gallery 8 with transition curvilinear walls 9, located over the side walls of gallery 8 and interfaced with output threshold 12 of gallery 8. The output threshold 12 is located above the chamber 4 bottom and designed with horizontal shelf 14 and coupled with bottom of tailrace channel 15. The bottom of gallery 8 is coupled with pipeline 10 with plain gate 11 through the opening. Due to collision of jets in chambers 3 and 4 at sites: drop, curvilineal walls curved radially, overflow through the walls, as well as generation of water flow occurs in gallery in front of output threshold 12, energy dissipation is provided, reduction of bottom velocities at outlet and smooth entry into the tailrace channel are achieved. Performance of flushing gallery with threshold with horizontal shelf permits to create helical motion in it, friction between the flow layers and eliminate siltation of gallery at the same time.EFFECT: improving work efficiency under conditions of variable water flows, increase of the device reliability.2 cl, 2 dwg |
