Water taking system for shallow water river in water-depleted mountainous area

Abstract

The invention discloses a water taking system for a shallow water river in a water-depleted mountainous area. The system involves an overflow weir, a water taking chamber and a radiation well, whereina spillway grid is arranged at an inlet of the water taking chamber, a floating mushroom head automatic water taking device and an on-line turbidity meter are arranged in the water taking chamber, and a submersible pump is arranged in the radiation well. When flooding does not occur, the overflow weir lifts the water level of the shallow water river, river water flows into the water taking chamber through the spillway grid, and then enters a water conveying pipe from the floating mushroom head automatic water taking device to flow to the radiation well, and finally, the submersible pump conveys the river water to a subsequent water purifying structure; a drought period relies on joint recharge of the above mentioned surface water recharge mode and the seepage of the radiation well; when the on-line turbidity meter in the water taking chamber during a flood period is displayed higher than 5 NTU, the on-line turbidity meter feeds back a signal to a self-control system, an electric butterfly valve mounted on the water conveying pipe is closed, and the radiation well supplies water through the self-seepage; according to the water taking system, the water supply amount of the shallow water river in the water-depleted mountainous area can be ensured, the water quality is reliable, the service life of the water taking system is prolonged, and the water taking cost is reduced.

Description

technical field [0001] The invention belongs to the field of water supply and water source engineering, and particularly relates to a water-poor mountain shallow-water river water intake system. Background technique [0002] For water-poor mountainous areas, the groundwater depth is shallow and the water permeability is weak, while the water quality of the rivers in mountainous areas is generally good, but the flow changes in flood and dry seasons, and the water volume is small or even stopped in dry seasons. The water level of the river is relatively shallow for many years. Even if the surface water of shallow rivers is blocked and stored by water retaining structures, it is generally difficult to ensure the water supply during the dry season, and the high turbidity and high sediment content in the flood season will increase the wear and tear of the raw water lift pump without treatment. Large follow-up water treatment structures operating load and water purification costs...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a water intake system for water-poor mountainous shallow rivers, aiming to solve the problem of shallow rivers with low water volume in dry season, high turbidity in flood season, shallow buried depth of groundwater, and weak water permeability. The use of shallow surface water in mountainous areas to supply water to ensure sufficient water supply and good water quality

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