节水灌溉Issue(4)：26-30,5.DOI:10.12396/jsgg.2025412
基于PLC的集成式智能穴盘喷淋灌溉系统设计与实现
Design and Implementation of a PLC-Based Integrated Intelligent Plug-Seedling Sprinkling Irrigation System
摘要
Abstract
This study addresses the problems of insufficient water control accuracy,uneven spraying,and reliance on manual management in plug seedling irrigation for facility agriculture by designing and implementing a PLC-based integrated intelligent sprinkling irrigation system.The system adopts an S7-1200 PLC as the control core and establishes a closed-loop control model using photoelectric and flow sensors to achieve real-time monitoring and dynamic regulation of spraying flow.Dual-mode nozzles(fan-type and cone-type)are designed and optimized through CFD simulation to improve spray uniformity and droplet size distribution.In addition,the system integrates a water–fertilizer–pesticide proportional mixing unit and is equipped with a touch-screen human–machine interface(HMI)for parameter setting,operation monitoring,and on-site control.Experimental results show that under a working pressure of 0.2 MPa,the spray angle reaches 72°,the Sauter Mean Diameter(SMD)is 0.38 mm,and the coefficient of variation of spray uniformity is controlled within 10%.Compared with manual sprinkling,the proposed system achieves a water-saving rate of 25%–30%and improves the seedling survival rate by approximately 12%.The results indicate that the system effectively enhances irrigation precision and automation levels,providing a feasible path for water conservation and intelligent management in facility agriculture.关键词
灌溉系统/PLC控制/喷头设计/穴盘育苗/水肥药一体化Key words
irrigation system/PLC control/nozzle design/plug seedling cultivation/integrated water–fertilizer–pesticide management分类
农业科技引用本文复制引用
善盈盈,祝勇仁,徐芬..基于PLC的集成式智能穴盘喷淋灌溉系统设计与实现[J].节水灌溉,2026,(4):26-30,5.基金项目
浙江省科技厅重点研发计划项目(2018C02009),浙江省科技厅公益技术应用研究(2017C32025). （2018C02009）
