| 引用本文: | 王金毅,杨路华,苟万里,等.薄壁微喷带组合均匀度及铺设间距试验研究[J].灌溉排水学报,2020,():-. |
| WANG Jinyi,YANG Luhua,GOU Wanli,et al.薄壁微喷带组合均匀度及铺设间距试验研究[J].灌溉排水学报,2020,():-. |
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| 摘要: |
| 【目的】为研究薄壁微喷带组合均匀度及最佳铺设间距。【方法】选取市场常用的N44 mm微喷带,开展不同压力下微喷带喷洒强度、均匀度和喷洒宽度试验,利用Surfer软件克里金插值法按照水量组合原理对数据进行网格化处理,在1.0-2.0R(喷洒宽度)范围内,分析微喷带组合喷洒强度、组合均匀度,确定微喷带合理组合间距。【结果】发现单管微喷带喷洒强度随喷洒距离增大呈双峰或单峰分布,喷洒宽度也随压力的增大而增大。组合喷洒强度随铺设间距的增大而减小；组合均匀度随铺设间距增大呈现“大-小-大-小”的趋势,当微喷带铺设间距为1.6 R时,组合均匀度达到峰值。【结论】针对市场上常用的折径44 mm微喷带,发现当铺设间距为1.8R与1.9R时,组合喷洒强度较小,组合均匀度较大,满足规范要求。 |
| 关键词: 薄壁型微喷带; 喷洒宽度;铺设间距; 组合均匀度;组合喷洒强度 |
| DOI： |
| 分类号:S275.5 |
| 基金项目:水利部海河水利委员会项目 |
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| Experimental Study on Uniformity of Combination and The Paving Spacing for Thin Wall Micro Spray Belt |
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WANG Jinyi, YANG Luhua, GOU Wanli, DI Zhigang
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College of Water Conservancy Engineering,Tianjin Agricultural University
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| Abstract: |
| 【Objective】To study the combination uniformity and optimum laying space about the thin wall micro spray belt. 【Method】3 kinds of micro spray belt were choosed which are often used in the saving water engineering.Experiments were carried out on the intensity, uniformity and width of micro-spray belt under different pressures,and the Surfer software Kriging interpolation method of mesh data was used to water volume combination principle about the thin wall micro spray belt with pipe diameter of N44mm, Within the range of 1.0R-2.0R (spraying width), the spraying intensity and uniformity of micro-spraying belt for combination were analyzed, and the optimization spacing of micro-spraying belt for combination was determined. 【Result】The results show that the spraying intensity of single tube micro-spraying belt distribution like single and double peak with the increase of spraying distance, the spraying width increased with the increase of pressure. Besides,the combined spraying intensity decreases with the increase of laying distance and the combination uniformity presents a trend of "large-small-large-small" with the increase of paving spacing, when the paving spacing of micro-spray belt is 1.6R, the combination uniformity reaches its peak. 【Conclusion】The combined spraying intensity is small and the combined uniformity is large which paving spacing is 1.8R and 1.9R, this spacing meets the requirements of the commonly specification use micro spraying belt with pipe diameter of 44mm in the market. |
| Key words: thin wall micro spray belt; spraying width; laying spacing; uniformity of combination; spraying intensity of combined |
