| 动态水压坡地喷灌水量分布特性与均匀度研究 |
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| 引用本文： | 付博阳,惠鑫,任乃望,黄煜,张林.动态水压坡地喷灌水量分布特性与均匀度研究[J].节水灌溉,2019(1):26-31. |
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| 作者姓名： | 付博阳 惠鑫 任乃望 黄煜 张林 |
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| 作者单位： | 西北农林科技大学水利与建筑工程学院,陕西 杨凌,712100;西北农林科技大学水土保持研究所,陕西 杨凌,712100 |
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| 摘 要： | 针对坡地喷灌水量分布不均匀、灌溉质量较低的问题,将动态水压供水技术引入坡地喷灌,以雨鸟LF1200型喷头为研究对象,分析了动态水压喷灌对喷头流量、射程、喷洒湿润面积、单喷头水量分布和组合喷头水量分布及均匀度的影响。结果表明:对于单喷头而言,采用动态水压喷灌的上下坡射程差在2.3 m左右,动压参数中动压振幅对射程影响较显著,动压喷灌时,振幅建议采用喷头正常工作压力范围内的较大值;单喷头水量分布均匀度在56%左右,动态水压参数对单喷头水量分布和喷灌均匀度影响不显著。在组合喷头的情况下,采用正三角形和矩形布置的均匀度高于正方形布置,其中采用矩形布置喷灌质量最佳。综合考虑工程投资、水量分布以及均匀度,动态水压喷灌时,当喷头采用三角形布置方式时,建议喷头间距为1.0～1.2R(R是喷头平地射程),当喷头采用矩形布置方式时,坡向间距宜采用0.6～0.8R,垂直坡向间距宜采用1.0～1.2R。
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| 关 键 词： | 坡地喷灌 动态水压 水量分布 喷灌均匀度 坡面射程 |
Water Distribution and Application Uniformity of Sprinkler Irrigation with Pulsating Pressure on Sloping Land |
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| FU Bo-yang,HUI Xin,REN Nai-wang,HUANG Yu,ZHANG Lin.Water Distribution and Application Uniformity of Sprinkler Irrigation with Pulsating Pressure on Sloping Land[J].Water Saving Irrigation,2019(1):26-31. |
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| Authors: | FU Bo-yang HUI Xin REN Nai-wang HUANG Yu ZHANG Lin |
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| Institution: | (College of Water Resources and Architectural Engineering of China, Northwest A&F University,Yangling 712100,Shaanxi Province,China;Institute of Soil and Water Conservation,Northwest A&F University,Yangling 712100,Shaanxi Province,China) |
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| Abstract: | FU Bo-yang;HUI Xin;REN Nai-wang;HUANG Yu;ZHANG Lin(College of Water Resources and Architectural Engineering of China, Northwest A&F University,Yangling 712100,Shaanxi Province,China;Institute of Soil and Water Conservation,Northwest A&F University,Yangling 712100,Shaanxi Province,China) |
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| Keywords: | sprinkler irrigation on sloping land pulsating pressure water distribution water application uniformity sprinkler radius of throw |
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