微灌石英砂颗粒表面滞纳能力计算与分析

刘清霞; 翟国亮; 李景海; 李国强; 邓忠

引用本文:	刘清霞,翟国亮,李景海,等.微灌石英砂颗粒表面滞纳能力计算与分析[J].灌溉排水学报,,():-.
	Liu Qing-xia,Zhai Guoliang,Li Jinghai,et al.微灌石英砂颗粒表面滞纳能力计算与分析[J].灌溉排水学报,,():-.

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微灌石英砂颗粒表面滞纳能力计算与分析
刘清霞,翟国亮,李景海,等
1.安阳工学院土木与建筑工程学院;2.中国农业科学院农田灌溉研究所;3.安阳市一中数学组

摘要:

微灌砂颗粒的滞纳能力,直接影响到砂滤层过滤性能,从而对滤层过滤效果产生重要影响。为了分析石英砂颗粒表面对过滤水中杂质颗粒的滞纳能力,本文选取3种微灌石英砂滤料的砂颗粒作为样本,采用三维表面形貌仪对砂颗粒表面轮廓最大高度和轮廓最大高度对应的波纹宽度进行测量,在此基础上,对砂颗粒滞纳水中杂质颗粒的机理进行分析,建立了砂颗粒表面轮廓的几何模型和砂颗粒表面杂质颗粒受力的数学模型,并计算了砂颗粒对水中杂质颗粒的滞纳能力,为砂滤料的选型和加工提供技术参考。

关键词: 石英砂;粗糙度;微灌;滞纳能力

DOI：

分类号:S27；TV14

基金项目:中国农业科学院统筹项目(项目编号：Y2019XC03-05；Y2018PT72)

Calculation and analysis of the surface retention capacity of quartz sand in micro-irrigation

Liu Qing-xia^1,2,3,2,4,2, Zhai Guoliang³, Li Jinghai⁵, Li Guoqiang⁶, Deng zhong³

1.Anyang Institute of Technology School of Civil and Architectural Engineering,Anyang,;2.China;3.Farmland Irrigation Research Institute,Chinese Academy of Agricultural Sciences;4.Anyang No Senior High School Mathematics Teaching Group,Anyang,;5.Anyang Institute of Technology School of Civil and Architectural Engineering,Anyang;6.Anyang No Senior High School Mathematics Teaching Group,Anyang

Abstract:

The retention capacity of sand particles in micro irrigation has a direct impact on the filtration performance of the sand filter, which has an important impact on the filtration effect of the filter. In order to analyze the ability of the surface of quartz sand particles to hold the impurities in the filtered water, three kinds of quartz sand filter layer with the diameter range 1.0 ~ 1.18 mm 、1.18 ~ 1.4 mm and 1.4 ~ 1.7 mm respectively were studied as research objects. And the corrugation width corresponding to the maximum height of the surface profile and the maximum height of the profile is measured by the three-dimensional surface topography instrument. On this basis, the mechanism of the sand particles holding the impurities in the filtered water is analyzed and calculated The ability of sand particles to retain impurities in water can provide technical reference for the selection and processing of filter materials.

Key words: Quartz Sand Filter; Roughness; Micro-irrigation; Retention capacity