基于AMESim的大田水肥一体化微喷灌系统建模与试验研究  

Modeling and experimental study on micro-sprinkler in integrated irrigation and fertilizer field based on AMESim

作　　者：李扬[1,2] 郝明[1] 王凯[1] 苑进[1,2] 

机构地区：[1]山东农业大学机械与电子工程学院,山东泰安271018 [2]山东省园艺机械与装备重点实验室,山东泰安271018

出　　处：《中国农机化学报》2017年第6期53-60,共8页Journal of Chinese Agricultural Mechanization

基　　金：山东省2015年度农业重大应用技术创新项目(2015-2018);国家自然科学基金项目(51675317);国家自然科学基金项目(51475278);山东省农机装备研发创新计划项目(2015YB201);"十二五"国家科技支撑计划资助项目(2014BAD08B01-2)

摘　　要：研究大田水肥一体化微喷灌系统喷水性能,针对微喷带沿程喷水均匀性差异问题,采用工程系统仿真软件AMESim对单条微喷带及微喷灌整体系统进行建模仿真,分析典型型号微喷带的管径、孔径及布放坡度对喷水均匀性的影响,以及微喷带分组灌溉的效率问题,结果表明:N63型微喷带沿程压力损失小于N45和N50型微喷带;N45型0.5mm孔径微喷带沿程压力损失小于0.9mm和1.2mm的微喷带;坡度布放时应采取首端高于末端的铺设方式,且布放坡度为12°时沿程喷水均匀性最优;在不超过干管额定压力情况下,N45型微喷带采用7条一组的分组灌溉方式效率最优。此外,特别针对性价比较高的N45型0.5mm孔径微喷带开展了大田微喷灌试验,结果表明N45型0.5mm孔径的微喷带有较好的均匀性,从而验证了仿真实验结论的有效性。Aiming at the uniformity problems of sprinkler, sprinkling performance of the micro-sprinkler system in integrated irrigation and fertilizer field is studied. Single micro-jet belt and micro-sprinkler system were simulated with AMESim software, effect of micro- jet belt＇s diameter, aperture and spreading slope on sprinkling uniformity were analyzed, and the efficiency of micro-sprinkling with groups was discussed. The results show that pressure loss of micro-jet belt N63 is less than micro-jet belt N45 and N50, pressure loss of micro-jet belt N45 with 0.5mm aperture is less than 0.9mm and 1.2ram. Reasonable microqet belt distribution is adopted which header is higher than the end, and the optimum sprinkling uniformity can be achieved at the slope of 12°. Within the rated tube pres- sure, group with seven micro-jets （N45） is adopted to achieve the optimum sprinkling efficiency. In addition, sprinkling test was con- ducted with micro-jet N45 （0.5mm）, and the better uniformity and the effectiveness of simulation results were verified.

关 键 词：微喷灌系统 AMESIM仿真 均匀性 

分 类 号：S275.5[农业科学—农业水土工程]