农业工程学报2012，Vol.28Issue(1)：87-93,7.DOI:10.3969/j.jssn.1002-6819.2012.01.017
细小泥沙粒径对迷宫流道灌水器堵塞的影响
Influence of sediment particle size on clogging performance of labyrinth path emitters
摘要
Abstract
The objective of this study was to investigate the influence of small sediment particles containing in muddy water on anti-clogging performance of oblique dental labyrinth channel drip emitters. A total of 8 types of muddy water with different particle size distribution (all less than 0.1 mm) were tested by short-term clogging tests. Based on these trials, the effect of two factors (sediments' diameter and muddy water concentration) on emitter's clogging were analyzed, and then the range of sensitive particle diameters and the level of sediment concentration were discussed.The results showed that the performance of emitters was greatly impacted by the sediment concentration in muddy water with sediment particle size <0.1mm, especially when sediment concentration was greater than 1.25 g/L. This finding indicated the positive relationship between sediment concentration and the clogging process.On the other hand, the sediment particle diameter neither monotonically increased nor decreased the clogging.Emitters are prone to being clogged when particle size ranges between 0.03 and 0.04 mm. The findings from the study will be beneficial for the practical application of muddy water in drip irrigation.关键词
粒径/沙粒/含量/迷宫流道/堵塞/灌水器Key words
fine sand/particle size/sediments/concentration/labyrinth oath/emitter分类
农业科技引用本文复制引用
刘璐,牛文全,Bob Zhou..细小泥沙粒径对迷宫流道灌水器堵塞的影响[J].农业工程学报,2012,28(1):87-93,7.基金项目
"十二五"国家863计划项目(2011AA100507) （2011AA100507）
