35results about How to "Lower water abstraction costs" patented technology

The invention relates to a high-efficiency tilted plate sand-removal and water-intake device which is used as water intake equipment in water supply engineering and surface water source heat pump engineering. The device comprises a water inlet chamber, a sand-separating and self-cleaning chamber and a water outlet chamber, wherein the wall of the intake chamber is made of corrugated bent plates and is provided with countless water inlet holes and water inlet / sand discharge dual-purpose holes; and the upper half of the sand-separating and self-cleaning chamber is a sand-separating chamber, thelower half is connected with a self-cleaning sand discharge bucket and a sand discharge pipe, a plurality of lateral flow tilted plates are arranged in bilateral symmetry in the direction of water flow in the sand-separating chamber, the tilted plates are tilted downwards and are provided with fins which are perpendicular to the direction of water flow and the plane of the tilted plates, and a sand-settling channel is left in the symmetry axis position of left and right lateral flow tilted plates and is communicated with the self-cleaning sand discharge bucket at the lower part. The device can be widely used in rivers having a high floater and sand content, and can be also used in water intake engineering using lakes, reservoirs or other water bodies as the water source. Besides, the device can effectively prevent the blocking of weeds and other floaters in water, effectively remove sand in water, omit the special sand basin and simplify the subsequent water treatment process, therebyachieving the purposes of reducing the abrasion of water pump impellers and subsequent water treatment structures, saving the capital investment, saving the occupied area and lowering the water intaking cost.

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.