低压输水技术在多水源农田灌区节水改造中的应用

Application of Low Pressure Water Delivery Technology in Water Saving Transformation of Multi-water Sources Farmland Irrigation Area

为提高多水源农田灌区节水效果,将低压输水技术应用到多水源农田灌区节水改造中。以金塔县鸳鸯灌区为改造对象对其多水源农田灌区进行节水改造,首先对工程进行总体布置,然后提出取水工程、渠首工程的设计,最后确定灌水定额与管网设计流量,并进行管材与管径选择以及管道水力计算,完成多水源农田灌区节水改造。实验表明,应用低压输水技术对多水源农田灌区节水改造后,明显减少了输水时间,提高了节水量、灌溉水利用率、灌溉面积达到率与间接效益,证明应用低压输水技术后能够有效提高多水源农田灌区节水改造效果。

in order to improve the water-saving effect of multi-water source farmland irrigation area,The low-pressure water delivery technology was applied to the water-saving transformation of multi-water sources farmland irrigation area.Taking Yuanyang Irrigation District of Jinta County as the object of transformation,the water-saving transformation of multi-water sources farmland irrigation area is carried out.Firstly,the overall layout of the project is carried out,and then the design of the water intake project and the headwork is proposed.Finally,the irrigation quota and the design flow of the pipe network are determined,the pipe materials and pipe diameters are selected,and the hydraulic calculation of the pipeline is carried out to complete the water-saving transformation of the farmland irrigation area with multiple water sources.The experiment shows that the application of low pressure water delivery technology in water saving transformation of multi-water source farmland irrigation area can significantly reduce the water transmission time,improve the water saving amount and utilization rate of irrigation water,reach rate of irrigation area and indirect benefits,and prove that the application of low pressure water delivery technology can effectively improve the water saving transformation effect of multi-water sources farmland irrigation area.