| Cite this article: | 储诚癸,顾佳林,朱梅,等.叠片多组合情境下滴灌过滤器水力性能实验研究[J].灌溉排水学报,0,():-. |
| Chu Chenggui,Gu JiaLin,Zhu Mei,et al.叠片多组合情境下滴灌过滤器水力性能实验研究[J].灌溉排水学报,0,():-. |
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| Experimental study on hydraulic performance of drip irrigation filter under the condition of laminated multi combination |
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Chu Chenggui1,1, Gu JiaLin1,1, Zhu Mei1, pan Zhong2
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1.Engineering College of Anhui Agricultural University;2.Hefei Runlu irrigation Co,Ltd
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| Abstract: |
| This paper takes the laminated filter as the research object, carries out the test of the head loss and filtration performance of the laminated filter under the conditions of the same flow of clean water and muddy water, under the two experimental modes of single mesh (150120, 80 mesh, three mesh gradient) and combined mesh (150, 120, 80 mesh combination), The factors influencing the hydraulic performance of the filter and the relationship among mesh number, head loss and filtration effect of the laminated filter are analyzed. The results show that under the condition of clear water, the water content of the water is higher than that of the control, The head loss of laminated filter will increase with the increase of mesh number, and the local head loss from large to small is 150 mesh, 120 mesh, combined laminated filter and 80 mesh, The shortest time for 150 mesh and combined laminated filter to reach serious clogging is 60s. The filtration strength of 150 mesh and combined laminated filter is 200% and 400% higher than that of 120 mesh and 80 mesh respectively; the sand removal rate of combined laminated filter is 8.3%, 4.6% and 2% higher than that of 80 mesh, 120 mesh and 150 mesh filter respectively, and the filtration uniformity of combined laminated filter is 63.1% and 36.1% higher than that of 80 mesh, 120 mesh and 150 mesh respectively %、2.9%。 From the comprehensive analysis of head loss, filtration strength, sand removal rate and filtration uniformity, the performance of the combined laminated filter is better than the other three filters. This paper provides a certain reference for the design of drip irrigation system and the selection of filtering equipment in the process of operation and the improvement of filtering effect. |
| Key words: laminated filter: head loss; blockage; drip irrigation |
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