排灌机械工程学报2025，Vol.43Issue(3)：316-324,9.DOI:10.3969/j.issn.1674-8530.23.0242
典型智能水肥一体机射流式吸肥器性能测试与结构优化
Performance and structure optimization of jet fertilizer suction device for typical intelligent water and fertilizer integrated machine
摘要
Abstract
The structure configuration and parameters of the fertilizer absorber have a significant influence on the working performance of the intelligent water-fertilizer integrated machine system.Ai-ming at the problems of low fertilizer absorption capacity and high pressure loss of common fertilizer ab-sorbers,three SSQ jet fertilizer absorber devices,two combined jet fertilizer absorber and one venturi fertilizer absorber were selected for analysis.The absorption performance of six kinds of fertilizer ab-sorbers was evaluated under different inlet pressures and inlet-outlet pressure differences by means of experiments and numerical simulation,and the structure of fertilizer absorber with better performance was optimized and studied through orthogonal and range analysis.The results show that under the same working conditions,the comprehensive performance of the SSQ jet-type fertilizer injectors is superior to that of the combined jet-type and Venturi injectors,and the maximum fertilizer absorption flow,working range(p1=0.30 MPa)and maximum fertilizer absorption efficiency of jet fertilizer absorber are in-creased by 71.75％-102.66％,38.40％-48.29％and 42.57％-93.24％,respectively,and the critical pressure difference is reduced by 9.09％-35.43％.The fertilizer absorption efficiency of SSQ-3 jet fer-tilizer absorber first increases and then decreases with the increase of throat nozzle area ratio and throat nozzle distance,and gradually decreases with the increase of tapering section angle and widening sec-tion angle.The optimal structural parameters of SSQ-3 jet fertilizer absorber are throat nozzle area ratio of 2,widening section angle of 5°,tapering section angle of 9° and throat nozzle distance of 5.94 mm.After structural optimization,the fertilizer absorption flow and efficiency of jet fertilizer absorber are in-creased by 9.09％-22.86％and 4.78％-27.43％,respectively.关键词
射流式吸肥器/文丘里吸肥器/吸肥性能/结构优化/正交设计Key words
jet fertilizer absorber/Venturi fertilizer absorber/fertilizer suction performance/structural optimization/orthogonal design分类
农业科技引用本文复制引用
张琼,王墙林,胡贵荣,刘畅,张力杰,李云开..典型智能水肥一体机射流式吸肥器性能测试与结构优化[J].排灌机械工程学报,2025,43(3):316-324,9.基金项目
国家自然科学重点基金资助项目(52339004) （52339004）
