灌溉用多孔管极限长度分析研究

天津农学院学报 ›› 2016, Vol. 23 ›› Issue (2): 33-35.

灌溉用多孔管极限长度分析研究

沈洪政¹, 刘文炜¹, 王仰仁^{1,通信作者}, 刘莉¹, 许欣然¹, 田晶²

1. 天津农学院水利工程学院,天津 300384;
2. 通辽市防汛抗旱物资供应管理站,内蒙古通辽028000

收稿日期:2016-01-20 出版日期:2016-06-20 发布日期:2019-10-14
通讯作者: 王仰仁（1962-）,男,山西介休人,教授,博士,主要从事灌溉排水理论与研究。E-mail:wyrf@163.com。
作者简介:沈洪政（1993-）,男,安徽蚌埠人,本科在读,主要从事灌溉排水理论与研究。E-mail:18920098683@163.com。
基金资助:
天津市水务局科技项目“基于物联网的温室滴灌高效灌溉系统研究”（KY2012-12）; 天津市大学生创新创业训练计划项目“地下滴灌出流方式对毛管田间布置参数的影响”（201510061111）

Research on Maximum Length of Pipelines with Multiple Outlets

SHEN Hong-zheng¹, LIU Wen-wei¹, WANG Yang-ren^{1,Corresponding Author}, LIU Li¹, XU Xin-ran¹, TIAN Jing²

1. College of Water Conservancy Engineering, Tianjin Agricultural University, Tianjin 300384, China;
2. Flood Control and Drought Resistant Material Supply Management Station of Tongliao City, Tongliao 028000, Inner Mongolia Province, China

Received:2016-01-20 Online:2016-06-20 Published:2019-10-14

摘要/Abstract

摘要： 通常情况下,多孔管极限长度的计算是基于出流量相等的假定进行的,实际情况是管道水流存在水头损失,出流量不相等。因此,本研究在出流量相等及不等两种情况下,对多孔管极限长度的计算结果进行比较分析;同时,分析研究在一行双管布置条件下,不同供水方式对毛管极限长度的影响。结果表明：采用一行双管、双侧供水可显著增加毛管的极限长度,减少支管用量,节省投资。该研究可为微灌毛管设计提供参考。

关键词: 极限长度, 水头损失, 滴灌带

Abstract: In many cases, the maximum length of pipelines calculation is based on the condition of the same flux, but considering the influence of the pipe head loss, the flux is not equal. Therefore, the results of the calculation of the maximum length of pipelines with multiple outlets are compared with the two cases of equal flux and unequal flux. Meanwhile, under the condition of double pipe arrangement a row, the effect of different water supply way on the maximum length of drip pipeline was analyzed. The results show that using the arrangement of double pipes to supply water for a line crop from two sides can significantly increase the maximum length of the pipelines, reduce the amount of branch pipe and save investment. The results of this research can be used to design of micro-irrigation system.

Key words: maximum length, head loss, drip tape

中图分类号:

S275.5

沈洪政, 刘文炜, 王仰仁, 刘莉, 许欣然, 田晶. 灌溉用多孔管极限长度分析研究[J]. 天津农学院学报, 2016, 23(2): 33-35.

SHEN Hong-zheng, LIU Wen-wei, WANG Yang-ren, LIU Li, XU Xin-ran, TIAN Jing. Research on Maximum Length of Pipelines with Multiple Outlets[J]. Journal of Tianjin Agricultural University, 2016, 23(2): 33-35.

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