| Cite this article: | 吴争光.锐角转折式滴灌带流道水力性能测试研究[J].灌溉排水学报,,():-. |
| wu zheng guang.锐角转折式滴灌带流道水力性能测试研究[J].灌溉排水学报,,():-. |
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| Study on hydraulic performance test of flow channel in acute Angle turning drip tape |
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wu zheng guang
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CAMCE WHU DESIGN&RESEARCH CO., LTD
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| Abstract: |
| 【Objective】The purpose of this paper is to determine the production size of drip irrigation belt with reverse inlet water and acute Angle turning channel.【Method】The flow rate of 18 drip irrigation belts with different sizes and specifications under different working pressure was measured by hydraulic performance test.【Result】Three factors, channel Angle, channel width and channel depth, all have influence on the flow rate of the reverse current inlet acute Angle turning channel drip irrigation belt, among which, the channel depth has the most significant influence on the flow rate of the drip irrigation belt, followed by the channel width, and the channel Angle has the least influence.When the passage Angle is 30°, 45° and 60°, the flow pattern index corresponding to the passage Angle of 30° is the smallest, followed by 45° and the flow pattern index corresponding to the passage Angle of 60° is the largest.When the channel depth is 0.2mm, 0.4mm and 0.6mm under the same channel Angle and channel width, the flow pattern index decreases with the increase of channel depth.【Conclusion】When the flow pattern index is taken as the standard for the production of the reverse flow acute Angle turning drip irrigation belt, 30° channel Angle, 1.0mm channel width and 0.6mm channel depth can be selected as the processing dimensions. |
| Key words: drip-tape; hydraulic performance; flow index；acute angle twist |
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