充填料浆对变径管的冲蚀磨损分析  

Analysis of erosion wear of filling slurry on reducing pipes

作　　者：王忠昶 陈阳 孙剑 夏洪春[2] WANG Zhongchang;CHEN Yang;SUN Jian;XIA Hongchun(School of Transportation Engineering,Dalian Jiaotong University,Dalian,Liaoning 116028,China;School of Civil Engineering,DalianUniversity,Dalian,Liaoning 116622,China)

机构地区：[1]大连交通大学交通运输工程学院,辽宁大连116028 [2]大连大学建筑工程学院,辽宁大连116622

出　　处：《山东科技大学学报（自然科学版）》2022年第4期39-46,共8页Journal of Shandong University of Science and Technology(Natural Science)

基　　金：国家自然科学基金项目(51574055);辽宁省“兴辽英才计划”项目(XLYC1807219)。

摘　　要：为研究充填料浆对变径管道的冲蚀磨损规律,以不同结构的变径弯管为研究对象,采用Fluent软件建立料浆在变径弯管中的流动模型,分析出入口管径比、变径段长度、弯管弯曲角度3个参数对管道磨损的影响规律。研究结果表明:出入口管径比对管道的冲蚀影响最严重,冲蚀面积与磨损率随着管径比增大改变明显;变径管长度在80 mm以下时磨损状况随管道因素变化波动幅度大;弯曲角度对管道的磨损影响仅体现在入口段与弯管段,其他区域磨损状况基本类似。To study the erosion wear law of filling slurry in reducing pipes,this paper took the reducing elbow pipes with different structures as the research object and established a flow model of slurry in reducing elbow pipes by using Fluent.It then analyzed the impact of the inlet and outlet pipe diameter ratio,the reducing section length,and the elbow’s bending angle on the erosion wear of reducing pipes.The research results show that the inlet and outlet pipe diameter ratio has the greatest impact on the erosion of the pipeline,and the erosion area and wear rate change significantly with the increase of the pipe diameter ratio.When the length of the reducing pipe is less than 80 mm,the wear condition fluctuates greatly with the change of pipeline factors.The bending angle has impact on the wear of the pipe only in the inlet section and the elbow section while in other areas the wear conditions are basically similar.

关 键 词：变径弯管 管径比 冲蚀磨损 充填料浆 数值模拟 

分 类 号：TD823[矿业工程—煤矿开采] TN929.5[矿业工程—矿山开采]