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由于新疆牧业灌区无电供应,水源无法过滤,实现滴灌工程难,目前采用地面灌溉。地形坡度大、灌水量多、大量水土流失。灌区下游排水不畅,洼地沼泽化面积剧增,地下水位上升导致土壤盐碱化,弃田面积逐渐扩大、种植面积萎缩。为了解决上述问题,充分利用地形落差,研制了自压滴灌工程过滤装置。同时渠道进水流量、调水池的调节流量、集水桶流量及系统流量之间建立了平衡关系。用实例说明不同地形落差与自压滴灌工程系统流量及过滤装置尺寸的计算过程。解决了自压滴灌工程水源的过滤、排沙、冲沙及自行冲洗等问题。为无电牧业灌区实现节水灌溉技术提供依据。
Due to the lack of electricity supply in Xinjiang’s husbandry irrigation areas, water can not be filtered and drip irrigation projects are difficult. Currently, surface irrigation is used. Large terrain gradient, irrigation volume, a lot of soil and water loss. Irrigation drainage in the lower reaches of the irrigation area is poor. The area of swamping in the depressions increases sharply. The rise of groundwater level leads to the salinization of soil, the area of abandoned farmland gradually expands and the area under cultivation shrinks. In order to solve the above problems, make full use of the terrain drop, developed a self-pressure drip irrigation project filtering device. At the same time, the channel influent flow, adjusting the flow of the water tank, the flow of water from the water collecting tank and the flow of the system establish a balance relationship. An example is given to illustrate the calculation process of system flow rate and filtration device size in different topographic drop and self-pressured drip irrigation engineering. Solve the self-pressure drip irrigation water, sediment removal, flushing and self-flushing and other issues. Provide the basis for realizing water-saving irrigation technology in electricity-free and livestock-raising irrigated area.