Sluice structure applicable to filtration and water diversion of silt-laden rivers

Abstract

The invention discloses a sluice structure applicable to filtration and water diversion of silt-laden rivers, which comprises a reinforce concrete-structured cylindrical sluice pier, the lower part ofthe cylindrical sluice pier is provided with a water inlet located on the upstream side, the cylindrical sluice pier is provided with a water outlet located on the downstream side, and the lower edgeof the water outlet is larger than or equal to the upper edge of the water inlet; the internal wall of the cylindrical sluice pier is provided with a horizontally arranged annular platform located atthe upper edge of the water inlet, the top surface of the annular platform is flushed with the upper edge of the water inlet, a filtration and permeation type piston sluice unit is horizontally arranged on the annular platform, and the cylindrical sluice pier is filled with a gravel filtering body under the filtration and permeation type piston sluice unit. The sluice structure utilizes the orifice flow principle in which the direction of water flow is changed by the pressure of the incoming upstream water of a dam, the incoming upstream water is filtered by the gravel filtering body, a filtering body net cage and a filtering and permeating body arranged from the bottom up in the cavity of the cylindrical sluice pier and then flows downstream, and the opening height of a stainless steel round flashboard is controlled by a screw hoist to realize flow controllability.

Description

technical field [0001] The invention relates to hydraulic structures, in particular to a sluice structure suitable for filtering and diverting rivers with many sediments. Background technique [0002] In water conservancy and hydropower projects, the water inlets of ecological river channel improvement projects and sand discharge diversion channel power generation projects, especially the relatively independent ecological water area projects with wide and shallow sandy river channels, the river bank requires a certain area of ​​still water intervals to ensure that aquatic plants, At the same time, it can prevent the area from silting up during the normal operation of the river in high and low water. [0003] At present, domestic and foreign river ecological management is to simulate the shape of natural branch rivers in the wide shoal area flowing through the urban area, and divide the water to form a certain landscape water surface, so as to improve the ecological and natur...

AI Technical Summary

Problems solved by technology

There are also measures to set uncontrolled permeable dams (blocking dams) in the river channel to use natural filtration to form a clear water surface. The water surface in the landscape area is consistent with the water flow process of the natural river. Evaporation and dissipation on the water surface is relatively large, and it is in an uncontrolled state, which is a waste of precious water resources in sandy hill areas

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