Built-in draining pump diving type sand blocking weir for preventing silt from entering water intake

Abstract

The invention discloses a built-in draining pump diving type sand blocking weir for preventing silt from entering a water intake. The built-in draining pump diving type sand blocking weir comprises asurrounding cavity type fixing sand blocking weir body which is fixedly arranged, a diving box located in a surrounding cavity of the fixing sand blocking weir body, a draining pump arranged inside the diving box, a height sensor for monitoring the silt depositing height, and a central control unit; the shape structure of the diving box is matched with the shape structure of the surrounding cavityof the fixing sand blocking weir body; a guide structural part and a limiting structural part for limiting the floating distance of the diving box are arranged between the diving box and the surrounding cavity of the fixing sand blocking weir body; and a ventilation pipe (1) is arranged on the diving box. According to the diving type sand blocking weir, when the silt deposition in front of the sand blocking weir is higher than the limiting height, the diving box floats up to increase the height of the sand blocking weir, and after the temporary sand blocking task is finished, the diving box dives to be fixed into the surrounding cavity of the fixing sand blocking weir body, and the normal sand blocking state is restored. The diving box floats up and sinks by changing the water level in the diving box, height of the sand blocking weir is increased and reduced, operation is simple, and the feasibility is high.

Description

technical field [0001] The invention relates to water conservancy projects, disaster prevention and mitigation projects, agricultural water conservancy projects, etc., and in particular to a sand-blocking sill for water intakes of mountainous rivers where the sedimentation in front of the water intake is relatively large and the height of the sand-blocking sill needs to be temporarily increased. Background technique [0002] In addition to taking water from the middle and deep layers of high-dam reservoirs, more methods of water intake from mountainous rivers are low-gate water intake or no-dam water intake, and the water intake is mainly arranged laterally. In order to prevent the sediment in the river from entering the water intake, it is very important to reasonably set the position and shape of the water intake. In addition, it is necessary to set up sand-blocking and sand-discharging structures at appropriate places before the entrance of the water intake. Mainly. [0...

AI Technical Summary

Problems solved by technology

The occurrence of the above situation will affect the safe operation of the water intake. The current countermeasures are mainly manual dredging, and there are no effective engineering measures

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