Sediment releasing method for water intake of low-head river channel pivotal power station
A water inlet and low water head technology, which is applied in hydropower stations, hydropower, water conservancy projects, etc., can solve the problems of small flow capacity of sand pulling holes, small flow rate at the mouth, and small range of scour funnels, etc., to achieve the effect of sand removal Significant, low water consumption, convenient construction effect
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[0017] The following examples and attachments are combined Figure 1-3 To further explain the present invention:
[0018] The method for discharging sand at the water inlet of a low-head riverbed junction power station of the present invention includes building layout and operation modes:
[0019] (1) Building layout: a dam foundation sand discharge tunnel 5 is set on the right side of the power station water inlet 1, and the dam foundation sand discharge tunnel 5 is provided with a sand discharge tunnel inspection door 6 and a sand discharge tunnel working door 7. A sand barrier 2 is arranged along the front edge of the water inlet 1 of the power station, and a sand conveyance corridor 3 is arranged in front of the sand barrier 2. The sand conveyance corridor 3 is connected to the dam foundation sand discharge tunnel 5, and the top of the sand conveyance corridor 3 is provided with a horizontal slit sand discharge port 4, and the width of the horizontal slit sand discharge port 4...
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