不同水质条件下灌水器抗堵塞性能研究  

Research on the Anti-clogging Performance of Emitters with Different Water Qualities

作　　者：姜珊[1,2] 范兴科[1,3] 叶成恒[1,2] 廖凯[1,2] 

机构地区：[1]中国科学院水利部水土保持研究所,陕西杨凌712100 [2]中国科学院研究生院,北京100049 [3]西北农林科技大学,陕西杨凌712100

出　　处：《中国农村水利水电》2010年第5期25-28,共4页China Rural Water and Hydropower

基　　金：国家科技支撑计划“首部移动式滴灌水质标准与配套技术模式研究”项目(2007BAD38B08-02)

摘　　要：研究不同含沙水滴灌条件下,随着灌水次数的增加滴灌管（带）的堵塞情况;灌水器出流及淤积在滴灌管（带）管腔内的泥沙含量和粒径组成。经过多次灌水试验,试验结果表明：经过11次灌水试验,D120水质情况下滴灌管（带）堵塞情况好于S120;S100和D75水质情况下,经过相同次数的灌水试验,4条滴灌管（带）堵塞灌水器个数及位置相同;S80和D75水质情况下,虽然D75水质下灌水次数多,但4种滴灌管（带）抗堵塞性能明显要好于S80水质情况下;不同水质情况下4条滴灌管（带）的前60 m,管腔内泥沙淤积量很小,70~90 m处泥沙淤积量则不同程度的增加,淤积在管腔内的泥沙中值粒径D50最大值出现在60~90 m。Research is done on the situation of clogging,discharge of the emitter,and the silt content and diameter composition deposited in four drip irrigation tubes or tapes under the condition of drip irrigation with silt content water.Results demonstrate that after 11 irrigation experiments,under D120 water quality clogging of drip irrigation tubes or tapes is better than those of S120.At the same time,irrigation experiments,the number and location of clogging emitters are the same between four drip irrigation tubes or tapes,under S100 and D75 water quality.The anti-clogging performance of drip irrigation tubes or tapes under D75 water quality is better than those of S100.In the first 60 m of drip irrigation tubes or tapes a little sand is deposited,but at 70~90 m sand deposition increases.The maximum sand diameter D50 deposited in the drip irrigation tubes or tapes appear at 60~90 m.

关 键 词：含沙水 滴灌管(带) 灌水次数 

分 类 号：S275.6[农业科学—农业水土工程]