摘要
针对引黄灌区含沙水灌溉作物所造成的微灌设备堵塞问题,采用非全流过滤方法,在5 cm定水头(含沙量2 kg/m^3、进水流量0.69 m^3/h)情况下,设计了“PVC打孔滤水管+无纺布+石英砂+土壤”过滤装置,装置设有竖直滤水管(处理1)、短水平滤水管(处理2)、长水平滤水管(处理3)三套处理对引黄灌区含沙水进行非全流过滤实验,研究结果表明:①以单位时间、单位长度管道滤出水流量观测,处理2流量最大;②装置滤出水含沙量较低,可用于微灌;③装置滤出水中泥沙颗粒粒径较小,装置除沙效果较好。
In response to the problem of micro-irrigation equipment clogging caused by irrigated crops containing yellow water in the Yellow River Irrigation Area,a non-all-flow filtration method is used.In the case of 5cm constant head(sand sediment volume 2 kg/m^3,influent flow rate 0.69 m^3/h),“PVC perforated water filter pipe+non-woven fabric+quartz sand+soil”filter device,the device is equipped with three sets of processing:vertical water pipe(treatment 1),short horizontal water pipe(treatment 2),long horizontal water pipe(treatment 3)An experimental study is made of non-all-flow filtration of sandy water in irrigation area of the Yellow River.The results show that:①The flow rate of filtered water per unit time and unit length,the maximum flow rate of treatment is observed.②The filter water has low sediment content and can be used for micro-irrigation.③The particle size of sediment particles in the filtered water is smaller,the device has better sand removal effect.
作者
赵佳奇
田军仓
夏天
明特
ZHAO Jia-qi;TIAN Jun-cang;XIA Tian;MING Te(Zhongwei Water Authority,Zhongwei 755000,Ningxia,China;School of Civil and Hydraulic Engineering,Ningxia University,Yinchuan,Ningxia,750021,China;Engineering Technology Research Center of Water-Saving and Water Resource Regulation in Ningxia,Yinchuan,Ningxia,750021,China;Engineering Research Center for Efficient Utilization of Modern Agricultural Water Resources in Arid Regions,Ministry of Education,Yinchuan,Ningxia,750021,China)
出处
《中国农村水利水电》
北大核心
2019年第12期38-42,共5页
China Rural Water and Hydropower
关键词
含沙水
非全流过滤
装置
sandy water
non-all-flow filtering
device
