| 低水头滴灌过滤器的研制与应用 |
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| 引用本文： | 秦永果.低水头滴灌过滤器的研制与应用[J].排灌机械,2007,25(4):43-45. |
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| 作者姓名： | 秦永果 |
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| 作者单位： | 山西省运城市人民政府移民办公室,山西,运城,044000 |
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| 摘 要： | 为解决传统微灌系统中使用的各种过滤装置孔口堵塞及水头损失较大这一问题,设计了几种不同截面型式的开敞式滤网过滤器,其结构有箱式、圆柱体式及棱柱体式三种型式,并分别对其进行水力性能测试。测试结果表明：额定流量为2 m^3/h时,以圆柱体式结构的滤网过滤器水头损失为最小（7.95 cm）;额定流量为5 m^3/h时,以箱形结构的滤网过滤器水头损失为最小（16.93cm）,两者均满足水头损失在30 cm以下的要求。实践应用结果表明,优选的两种开敞式滤网过滤器具有过滤效果好、水头损失小等优点,对于减缓灌水器堵塞、延长系统寿命发挥了重要作用,是适于低水头微灌系统的一种较为理想的过滤装置。
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| 关 键 词： | 低水头滴灌 开敞式滤网过滤器 微灌系统 水头损失 |
| 文章编号： | 1005-6254（2007）04-0043-03 |
| 收稿时间： | 2007-04-10 |
| 修稿时间： | 2007-04-10 |
Development and applications of low-water-head drip irrigation filter |
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| QIN Yong-guo.Development and applications of low-water-head drip irrigation filter[J].Drainage and Irrigation Machinery,2007,25(4):43-45. |
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| Authors: | QIN Yong-guo |
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| Abstract: | To solve the problems of opening blockage and high water-head loss in drip irrigation system,some kinds of open filters are developed,which have different cross sections,such as box type,cylindrical-type and prism-type.The results of hydraulic performance test show that water-head loss of cylindrical-type filter is the least(7.95 cm) when flow rate is 2 m3/h and that of box-type filter is the least(16.93 cm) when flow rate is 5 m3/h.Both meet the requirement of less than 30 cm water-head loss.The practice proves their excellent performance of good filter effects and lower water-head loss. |
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| Keywords: | low-water head drip irrigation open filters micro-irrigation system water-head loss |
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