球形弯头磨损的数值模拟与试验研究  

Numerical Simulation and Experimental Study of Spherical Elbow Wear

作　　者：刘培坤[1] 郝志刚[1] 杨兴华[1] 张悦刊[1] 胡兆文[1] 

机构地区：[1]山东科技大学,山东青岛266590

出　　处：《煤炭技术》2018年第1期222-224,共3页Coal Technology

基　　金：国家自然科学基金资助项目(21276145);山东省科技发展计划资助项目(2014GSF116016)

摘　　要：针对输送系统中弧形弯头易被磨损失效的问题,提出一种球形弯头来替代弧形弯头以提高弯头使用寿命。通过Fluent 14.5模拟分析2种类型弯头的流场特性,探明了不同颗粒对弯头的冲蚀磨损规律及弯头的磨损分布特征,并进行了球形弯头与弧形弯头磨损对比试验。模拟和试验结果均表明,弧形弯头的最大磨损率是球形弯头的4倍。In order to prevent being easily worn out in the transport system, a spherical elbow instead of arc elbow has been proposed to extend its life. The simulation software Fluent 14.5 has been used to simulate and compare the intertal flow field characteristics in the two kinds of elbow. The erosion and wear rules caused by different particles on the spherical elbow and are elbow have been elucidated, and then the wear test were carried out. Both the simulated and experimental results demonstrate that, the maximum wear rate of the arc elbow is four times than that of the spherical elbow.

关 键 词：弯头 冲蚀磨损 磨损率 数值模拟 

分 类 号：TG172[金属学及工艺—金属表面处理] TP391.7[金属学及工艺—金属学]