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| DOI：10.13522/j.cnki.ggps.2025403 |
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| Hydraulically actuated automatic irrigation system and its pipe-network design |
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Wang Jiale, Hong Ming, Yang Wenxin, Nian Gengchen, Yang Xiaoyu, Fan Shifeng
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1. College of Hydraulic and Civil Engineering Xinjiang Agricultural University, Urumqi 830052, China;
2. Xinjiang Key Laboratory of Hydraulic Engineering Safety and Water Disaster Prevention, Urumqi 830052, China;
3. Xinjiang Karez Irrigation Technology Co., Ltd., Urumqi 830026, China
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| Abstract: |
| 【Objective】Automatic irrigation improves irrigation efficiency and reduces labor costs, but its application is constrained in areas with limited access to electricity and communication networks. We developed a hydraulically actuated automatic irrigation system based on a hydraulically actuated irrigation control valve (HAICV) to overcome these limitations and investigated field pipe-network configurations suited to its operation.【Method】Based on the composition and operating principles of the hydraulically actuated automatic irrigation system, material requirements and network configurations among different irrigation plot layouts were compared. To address excessive flow rate and pressure during system operation, a hierarchical control-valve assembly structure was proposed, and its flow characteristics and irrigation cycles were compared and analyzed. The economic feasibility and operational reliability of the hydraulically actuated automatic irrigation system were evaluated.【Result】The HAICV was optimally positioned at the center of the irrigation plot, with an ‘X’-shaped connecting-pipe layout providing the optimal field pipe-network configuration. The field pipe network with a two-stage control-valve assembly showed the best overall performance. Compared with a traditional automatic irrigation system, the hydraulically actuated automatic irrigation system reduced initial investment by 35.67% and annual operating costs by 28.60%. Although the valve opening and closing processes were relatively slow, irrigation control accuracy was comparable to that of the traditional system.【Conclusion】The hydraulically actuated automatic irrigation system based on the optimized field pipe network and two-stage HAICV configuration can meet the requirements of automatic irrigation while substantially reducing initial investment and annual operating costs. It is particularly suitable for agricultural areas with limited electricity and communication network coverage. |
| Key words: automated irrigation pipe network design financial analysis hydraulic actuated irrigation control valve system design frequency conversion adjustment |
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