钻煤用磨料水射流混合阀腔冲蚀研究  

Research on Mixed Valve Cavity Erosion of Abrasive Water Jet in Coal Drilling

作　　者：李成 崔松 袁帅伟 LI Cheng;CUI Song;YUAN Shuai-wei(School of Mechanical Engineering,Anhui University of Science and Technology,Huainan 232001,China)

机构地区：[1]安徽理工大学机械工程学院

出　　处：《煤炭技术》2018年第12期239-242,共4页Coal Technology

基　　金：安徽理工大学研究生创新基金(2017CX2079)

摘　　要：针对前混磨料射流钻煤设备中磨料颗粒在混合阀腔内随流体流动的特性,研究了不同速度下磨料颗粒对阀腔内壁面及阀芯外壁面的冲蚀特性。研究结果表明,磨料颗粒在流道的突扩段内冲蚀较小,在流道的收缩段及其他迫使流体流动方向改变处,磨料颗粒会对混合阀腔壁面造成较大的冲蚀。Aiming at the fluid flow characteristics of the abrasive particles in the mixed valve cavity in the jet mill of jet mill,the erosion characteristics of the valve cavity wall and the valve plug outer wall at different speeds were studied.Studies have shown that in addition to erosion in the sudden expansion of the runner is small,in the flow path contraction section and other forced fluid flow direction at the change,abrasive particles carl cause large erosion of the mixed valve cavity walls of abrasive jet drilling equipment.

关 键 词：前混合磨料射流 煤岩打钻 混合阀 冲蚀磨损 

分 类 号：TH137.52[机械工程—机械制造及自动化]