基于制造偏差的滴灌系统综合流量偏差率  

Integrated Flow Deviation Rate of Drip Irrigation System Based on Manufacturing Variation

作　　者：张林[1] 吴普特[1] 朱德兰[2] 王剑[2] 

机构地区：[1]西北农林科技大学水土保持研究所,陕西杨凌712100 [2]西北农林科技大学水利与建筑工程学院,陕西杨凌712100

出　　处：《农业机械学报》2013年第12期135-139,共5页Transactions of the Chinese Society for Agricultural Machinery

基　　金：'十二五'国家科技支撑计划资助项目(2011BAD29B02);国家工程技术研究中心再建资助项目(2011FU125Z27);西北农林科技大学博士科研启动基金资助项目(Z111021310);高等学校学科创新引智计划资助项目(B12007)

摘　　要：在文献[10]提出的流量偏差率公式基础上,作了进一步推导,简化了公式中的参数。根据步进法水力解析原理,模拟了不同制造偏差下给定灌水小区的综合流量偏差率,通过对综合流量偏差率的统计分析,验证了理论公式。利用公式分析了制造偏差对综合流量偏差率的影响,提出了灌水小区综合流量偏差率允许值的建议。Based on the formula of flow deviation rate proposed by authors in reference [ 10 ] , the further derivation was conducted to simplify the parameters in the formula for designing drip irrigation system economically and credibly. According to the hydraulic analysis using step-by-step method, the integrated flow deviation rates for a drip irrigation submain unit were calculated at different emitter manufacturing variation. The formula of flow deviation rate was verified by the statistical analysis of the integrated flow deviation rate. Further, the effect of emitter manufacturing variation on integrated flow deviation rate was analyzed using the formula, and the allowable value for integrated flow deviation rate of drip irrigation submain unit was recommended for drip irrigation system design.

关 键 词：滴灌 流量偏差率 制造偏差 允许值 

分 类 号：S275.4[农业科学—农业水土工程]