新型电磁磨料射流加速效果理论分析及仿真  

Theoretical Analysis and Simulation of New Electromagnetic Abrasive Jet Acceleration Effect

作　　者：李淩豪 刘力红[1] 杜鹏 Li Linghao;Liu Lihong;Du Peng(College of Mechanical Engineering,Anhui University of Science and Technology,Huainan 232001)

机构地区：[1]安徽理工大学机械工程学院,安徽淮南232001

出　　处：《冶金设备》2021年第2期5-8,共4页Metallurgical Equipment

基　　金：国家自然科学基金项目“直旋混合射流破碎煤岩机理研究”(No.51804117)。

摘　　要：针对现代磨料射流技术工作连续性差的问题,基于新型电磁磨料射流技术提出通过电磁磨料射流的二次加速提高工作连续性的想法。应用磁流体推进技术理论,研究了电磁磨料射流的加速效果,射流速度提高了√2倍。文中应用ANSYS软件仿真分析了电磁磨料射流的加速效果,为便于仿真分析将圆形通道设置为方形通道,射流速度提高了1.163倍。搭建了试验装置验证电磁磨料射流的加速效果:射流速度提高了1.387倍。试验研究了不同磨料形状、磨料直径、电压与电磁磨料射流加速效果的规律变化,试验结果表明:球形磨料相对圆柱形磨料加速效果较好,球形磨料存在最优直径15mm使加速效果较好,射流速度随电压增大而增大,提出通过对电压进行精确控制而提高加速效果的想法。Aiming at the problem of poor continuity of modern abrasive jet technology,based on the new electromagnetic abrasive jet technology,the idea of improving the continuity of work through the secondary acceleration of electromagnetic abrasive jet is proposed. Using the theory of magnetic fluid propulsion technology,the acceleration effect of the electromagnetic abrasive jet is studied,and the jet velocity is increased by a factor of two. The acceleration effect of the electromagnetic abrasive jet was simulated by ANSYS software. In order to facilitate the simulation analysis,the circular channel was set to a square channel,and the jet velocity was improved by 1. 163 times. A test device was built to verify the acceleration of the electromagnetic abrasive jet: the jet velocity was increased by 1. 387 times. The experimental results of different abrasive shapes, abrasive diameters,voltages and electromagnetic abrasive jet acceleration effects are tested. The experimental results show that the spherical abrasive has better acceleration effect than the cylindrical abrasive. The spherical abrasive has the optimal diameter of 15 mm,which makes the acceleration better. The speed increases as the voltage increases,and the idea of improving the acceleration effect by precisely controlling the voltage is proposed.

关 键 词：磨料射流 电磁磨料射流 仿真分析 

分 类 号：TG155.4[金属学及工艺—热处理]