| 地下滴灌抗负压堵塞的试验研究 |
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| 引用本文： | 王荣莲,龚时宏,王建东,李光永,赵永来.地下滴灌抗负压堵塞的试验研究[J].灌溉排水学报,2005,24(5):18-21. |
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| 作者姓名： | 王荣莲 龚时宏 王建东 李光永 赵永来 |
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| 作者单位： | [1]中国农业大学,北京100083 [2]中国水利水电科学研究院,北京100044 [3]内蒙古农业大学,内蒙古呼和浩特010018 |
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| 基金项目： | 国家“863”计划专项内容(2002AA2Z4101) |
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| 摘 要： | 通过室内试验,研究地下滴灌滴头负压堵塞与滴头出水口形式、滴头流量间的关系,发现滴头出水口形式对滴头抗堵塞性能影响显著。在窄缝、舌片、圆孔3种出水口形式中,窄缝式抗负压堵塞性能最好,但相同出水口形式时,小流量(小流道)滴头对抗负压堵塞有一定的优势。
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| 关 键 词： | 地下滴灌 抗负压堵塞 滴头出水口形式 流量 |
| 文章编号： | 1000-646X(2005)05-0018-04 |
| 修稿时间： | 2005年9月1日 |
The Study on Anti-clogging of Negative Pressure for Driplines for Subsurface Drip Irrigation(SDI) |
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| WANG Rong-lian,GONG Shi-hong,WANG Jian-dong,LI Guang-yong,ZHAO Yong-lai.The Study on Anti-clogging of Negative Pressure for Driplines for Subsurface Drip Irrigation(SDI)[J].Journal of Irrigation and Drainage,2005,24(5):18-21. |
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| Authors: | WANG Rong-lian GONG Shi-hong WANG Jian-dong LI Guang-yong ZHAO Yong-lai |
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| Institution: | WANG Rong-lian~1,GONG Shi-hong~2,WANG Jian-dong~2,LI Guang-yong~1,ZHAO Yong-lai~3 |
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| Abstract: | In this paper,the author studied the relationship between anti-clogging performance of negative pressure for drip lines used for SDI with their outlet forms and flow rates.The results of the experiment indicated that the outlet form of emitters affected the anti-clogging performance of negative pressure more than the flow rate of emitters.In addition,the results revealed that narrow outlet form had better anti-clogging performance caused by negative pressure than that of orifice outlet and tongue-shape outlet,and emitters with the same outlet form,which had small flow rate or small flow passage structure size,had an advantage for anti-clogging performance of negative pressure. |
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| Keywords: | subsurface drip irrigation clogging against negative pressure outlet form of emitter flow rate |
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