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分析了农药性能和扇形雾喷头内腔结构等对喷头冲蚀磨损的影响因素,并根据冲蚀受力分析、能量平衡关系和CFD仿真运算,研究了扇形雾喷头内腔结构的冲蚀磨损并确定冲蚀磨损最严重的位置,推导出固体颗粒与喷头内表面在碰撞过程中能量分配关系式。因为扇形雾喷头各部位的冲蚀磨损互相联系、互相影响,故雾喷头冲蚀磨损分析应综合考虑喷头内各部位(包括喷头切口参数、喷头内径和表面粗糙度等)的磨损规律。
The influencing factors of the erosive wear on the nozzle were analyzed, such as the pesticide performance and the cavity structure of the fan-shaped fog nozzle, and the erosive wear of the cavity structure of the fan-shaped fog nozzle was studied according to the erosion force analysis, the energy balance relationship and the CFD simulation calculation Determine the position of the erosion and erosion the most serious, and deduce the energy distribution relationship between the solid particles and the inner surface of the nozzle during the collision. Because the erosion and erosion of fan spray nozzle parts are related to each other and influence each other, the erosion and erosion analysis of mist spray nozzle should consider the wear rules of various parts (including nozzle cutting parameters, nozzle inner diameter and surface roughness, etc.).