| 滴灌系统中压力调节器应用的经济性分析 |
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| 引用本文： | 田金霞,龚时宏,李光永.滴灌系统中压力调节器应用的经济性分析[J].灌溉排水学报,2004,23(4):55-57. |
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| 作者姓名： | 田金霞 龚时宏 李光永 |
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| 作者单位： | 1. 中国农业大学,北京,100083
2. 中国水科院,水利所,北京,100044 |
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| 基金项目： | 国家"863"计划专项(2002AA2Z4101) |
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| 摘 要： | 压力调节器是滴灌系统中重要的调压设备。以新疆典型棉花滴灌为对象,分析了分别在滴灌系统毛管首端和支管首端分别设置压力调节器滴灌管网投资的变化关系,并与不设压力调节器的情况进行了比较。通过经济分析,得出棉花滴灌条件下设置不同级别压力调节器的经济阈值。
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| 关 键 词： | 压力调节器 投资分析 经济阈值 |
| 文章编号： | 1000-646X(2004)04-0055-03 |
| 修稿时间： | 2004年7月6日 |
Economic Analysis of Pressure Regulators in the Drip Irrigation System |
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| TIAN Jin-xia,GONG Shi-hong,LI Guang-yong.Economic Analysis of Pressure Regulators in the Drip Irrigation System[J].Journal of Irrigation and Drainage,2004,23(4):55-57. |
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| Authors: | TIAN Jin-xia GONG Shi-hong LI Guang-yong |
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| Institution: | TIAN Jin-xia~1,GONG Shi-hong~2,LI Guang-yong~1 |
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| Abstract: | Pressure regulators are important pressure-regulating equipment in drip irrigation system. Based on the typical drip irrigation system applied for cottons in Sinkiang, the investment for pipe system were analyzed under two different installing places for pressure regulators, which is in the inlets of laterals and in the submain lines, and the investment analysis was also compared with that of no pressure regulators situation. Finally, According to economic analysis, economic thresholds of different classes of pressure regulators are obtained. |
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| Keywords: | pressure regulator investment analysis economic threshold |
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