The invention provides an overexploitation area
surface water-saving
irrigation and low-pressure underground
pipe network recharge exploitation supplement coupled
system which comprises a
water source, a filter tank, an underground
pipe network, a surface
drip irrigation device and an underground water recharge device. The water inlet end of the filter tank is communicated with the
water source through a first
centrifugal pump and a first conveying pipeline, the underground
pipe network comprises a plurality of underground
water filter pipes which are vertically and horizontally staggered andmutually communicated, one end of each underground
water filter pipe is connected with the filter tank through a water collecting pipe, the other end of each underground
water filter pipe is connectedwith a
settling tank, the surface
drip irrigation device comprises a pivot head, a
drip irrigation belt and a drip
irrigation head, one end of the pivot head is connected with the water outlet end ofthe filter tank, the other end of the pivot head is connected with multi-row main pipes, multi-line
branch main pipes are connected with the main pipes, the drip
irrigation belt is connected with thebranch main pipes, the drip irrigation head is arranged on the drip irrigation belt, the underground water recharge device comprises an exploited well, and underground water is conveyed into the irrigation belt through a second
centrifugal pump and a water conveying pipeline.