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首页> 外文期刊>Agricultural mechanization in Asia, Africa and Latin America >Experimental and Combined Calculation of Variable Fluidic Sprinkler in Agriculture Irrigation
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Experimental and Combined Calculation of Variable Fluidic Sprinkler in Agriculture Irrigation

机译：农业灌溉可变喷水试验与组合计算。

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摘要

To overcome the problems of repeated sprinkling and spraying beyond the boundary of the spraying area, a variable sprinkler irrigation system was developed. The variable sprinkler allows the pressure and flow to be change with sprinkler rotation. Experiments were carried out to determine the hydraulic performance and the characteristic parameters of variable irrigation systems. The results showed that as the inlet cross-section of the sprinkler increased, the flow rate, the sprinkler working pressure and the wetted radius also increased. Furthermore, the supply pressure of the system and the drop sizes at the end of the wetted radius decreased. A method to calculate the combined uniformity of a variable irrigation system was developed. The relationship between the distance of the sprinklers and the uniformity coefficient was obtained. For a square spray pattern, the data were analyzed using nonlinear regression. Under the square and triangular layouts, the combined space coefficients (combined space coefficients is the division for lateral space to wetted radius (R)) of the sprinklers (typed BPXH) BPXH20 and BPXH30 were 1.3R, 1.43R, 1.3R and 1.27R, and the uniformity coefficients were 74.3 %, 75.6 %, 66.3 % and 78.4 %, respectively.
机译：为了克服反复喷洒和喷洒超出喷洒区域边界的问题，开发了可变喷洒灌溉系统。可变喷头允许压力和流量随喷头旋转而变化。进行实验以确定可变灌溉系统的水力性能和特征参数。结果表明，随着喷头入口横截面积的增加，流量，喷头工作压力和湿半径也随之增加。此外，系统的供应压力和湿润半径末端的液滴尺寸减小了。开发了一种计算变量灌溉系统组合均匀度的方法。得到了喷头的距离与均匀度系数之间的关系。对于方形喷雾模式，使用非线性回归分析数据。在正方形和三角形布局下，洒水喷头（型号BPXH）的组合空间系数（组合空间系数是横向空间对湿半径（R）的除法）BPXH20和BPXH30分别为1.3R，1.43R，1.3R和1.27R的均匀性系数分别为74.3％，75.6％，66.3％和78.4％。

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  • 来源
  • 作者

    LIU Jun-ping; YUAN Shou-qi; LI Hong; Zhu Xingye;

  • 作者单位

    Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, CHINA;

    Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, CHINA;

    Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, CHINA;

    Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, 301 Xuefu Road, Zhenjiang, Jiangsu, CHINA;

  • 收录信息 美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    variable spraying system; sprinkler; hydraulic performance; uniformity;

    机译：可变喷涂系统;洒水器水力性能均匀度;

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