| 压力及孔径对管道喷雾空心圆锥雾喷头雾滴参数的影响 |
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| 引用本文： | 代秋芳,洪添胜,宋淑然,李震,陈建泽. 压力及孔径对管道喷雾空心圆锥雾喷头雾滴参数的影响[J]. 农业工程学报, 2016, 32(15): 97-103. DOI: 10.11975/j.issn.1002-6819.2016.15.014 |
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| 作者姓名： | 代秋芳 洪添胜 宋淑然 李震 陈建泽 |
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| 作者单位： | 1. 华南农业大学南方农业机械与装备关键技术教育部重点实验室,广州510642;国家柑橘产业技术体系机械研究室,广州510642;华南农业大学电子工程学院,广州510642;2. 华南农业大学南方农业机械与装备关键技术教育部重点实验室,广州510642;国家柑橘产业技术体系机械研究室,广州510642;华南农业大学工程学院,广州510642;3. 华南农业大学工程学院,广州,510642 |
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| 基金项目： | 广东省自然科学基金(2015A030310398)；现代农业产业技术体系建设专项资金(CARS-27)；公益性行业(农业)科研专项经费项目(201203016)；广东省“扬帆计划”引进创新创业团队专项(201312G06) |
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| 摘 要： | 雾滴参数是衡量喷雾效果的重要指标。为研究管道喷雾设施中喷雾压力与喷头孔径的改变对果园用空心圆锥雾喷头雾滴参数的影响,通过喷雾性能综合试验平台和激光粒度仪,测量3种孔径的空心圆锥雾喷头在8种压力下的雾滴颗粒群的散射谱,获得了雾滴参数随压力和孔径的变化规律,给出了各工况下的雾滴谱曲线,分析了雾滴粒径的大小、分布和均匀性,建立了基于压力和孔径的雾滴参数模型。结果表明:压力越大,孔径越小,雾滴越细小越均匀;数据拟合误差均小于0.012;雾滴均较细小且较均匀,主要以气溶胶的形式存在;主要是粒径小于40μm的雾滴(79.659%~93.374%);雾滴谱峰值均在30μm附近出现;压力大于0.80 MPa后喷雾效果更好,其中体积中值粒径(volume median diameter,VMD)为30.610~31.632μm,雾滴很细小,扩散比(diffusion ratio,DR)为0.901~0.916,雾滴很均匀,VMD和DR均随压力呈二次多项式变化规律(R~2均大于0.968),VMD和DR与孔径和压力均有良好的二元线性关系(R~2分别为0.928和0.937)。研究结果验证了研发管道恒压喷雾装置的重要性,为喷头选型,管道恒压喷雾装置的优化、喷雾压力的设定和喷雾效果的优化提供了参考。
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| 关 键 词： | 喷雾 模型 喷头 喷雾压力 喷头孔径 雾滴参数 雾滴谱 |
| 收稿时间： | 2015-10-18 |
| 修稿时间： | 2016-01-15 |
Influence of pressure and pore diameter on droplet parameters of hollow cone nozzle in pipeline spray |
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| Dai Qiufang,Hong Tiansheng,Song Shuran,Li Zhen and Chen Jianze. Influence of pressure and pore diameter on droplet parameters of hollow cone nozzle in pipeline spray[J]. Transactions of the Chinese Society of Agricultural Engineering, 2016, 32(15): 97-103. DOI: 10.11975/j.issn.1002-6819.2016.15.014 |
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| Authors: | Dai Qiufang Hong Tiansheng Song Shuran Li Zhen Chen Jianze |
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| Affiliation: | Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, Guangzhou 510642, China;Division of Citrus Machinery, China Agriculture Research System, Guangzhou 510642, China;College of Electronic Engineering, South China Agricultural University, Guangzhou 510642, China,Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, Guangzhou 510642, China;Division of Citrus Machinery, China Agriculture Research System, Guangzhou 510642, China;College of Engineering, South China Agricultural University, Guangzhou 510642, China,Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, Guangzhou 510642, China;Division of Citrus Machinery, China Agriculture Research System, Guangzhou 510642, China;College of Electronic Engineering, South China Agricultural University, Guangzhou 510642, China,Key Laboratory of Key Technology on Agricultural Machine and Equipment, Ministry of Education, South China Agricultural University, Guangzhou 510642, China;Division of Citrus Machinery, China Agriculture Research System, Guangzhou 510642, China;College of Electronic Engineering, South China Agricultural University, Guangzhou 510642, China and College of Engineering, South China Agricultural University, Guangzhou 510642, China |
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| Abstract: | |
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| Keywords: | spraying models nozzles spray pressure nozzle pore diameter droplet parameters droplet spectrum |
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