基于液固两相流的过滤器冲蚀磨损数值模拟
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摘要
以液压支架反冲洗回液过滤器为研究对象,分析了其组成结构和工作原理,应用FLUENT软件模拟液固两相流对过滤器的冲蚀行为,将滤网和颗粒形状分别用多孔介质模型和DPM模型表征,分析过滤器内部流场分布规律,找出过滤器最易发生磨损的位置。研究结果表明:含固体颗粒的乳化液对反冲洗过滤器产生的冲蚀磨损,主要集中在控制单向阀和回液出口密封圈处,最大磨损率为1.4×10~(-6) kg/(m~2·s)。研究方法对液压支架反冲洗过滤器故障的定性分析、预测和过滤器的结构设计具有一定参考价值。
With the hydraulic support backwash filter as the research object,its structure and working principle were analyzed,and FLUENT software was used to simulate the erosion behavior of liquid-solid two-phase flow to the filter,and the porous medium model and DPM model were used to characterize the filter screen and particle shape,respectively,and analyze the flow field distribution inside the filter in order to find out the location where wear occurs most easily.The research results show that the erosion wear of the emulsion containing the solid particles on the backwash filter was mainly concentrated on control check valve and the return outlet seal ring.The maximum wear rate was 1.4×10~(-6) kg/(m~2·s).The research method provides certain reference for the fault qualitative analysis,prediction and structural design of the hydraulic support backwash filter.
With the hydraulic support backwash filter as the research object,its structure and working principle were analyzed,and FLUENT software was used to simulate the erosion behavior of liquid-solid two-phase flow to the filter,and the porous medium model and DPM model were used to characterize the filter screen and particle shape,respectively,and analyze the flow field distribution inside the filter in order to find out the location where wear occurs most easily.The research results show that the erosion wear of the emulsion containing the solid particles on the backwash filter was mainly concentrated on control check valve and the return outlet seal ring.The maximum wear rate was 1.4×10~(-6) kg/(m~2·s).The research method provides certain reference for the fault qualitative analysis,prediction and structural design of the hydraulic support backwash filter.
引文
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[16]宗全利,杨洪飞,刘贞姬,等.网式过滤器滤网堵塞成因分析与压降计算[J].农业机械学报,2017,48(9):215-222.
[17]侯宗宗,王宾宾,王要伟.船舶压载水过滤器内部流场的数值研究[J].流体机械,2018,46(8):36-39.
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[2]金浩哲,易玉微,刘旭,等.液固两相流冲洗油管道的冲蚀磨损特性数值模拟及分析[J].摩擦学学报.2016,36(6):695-702.
[3]Cheng W,Finnie I.Residual stress measurement and the slitting method[M].Springer US,2007.
[4]Akbarzadeh E,Eisaadaw Y E,Shrrik A M,et al.The solid particle erosion of 12 metals using magnetite erodent[J].Wear,2012,283:10-5l.
[5]褚渊博,袁朝辉,张颖.射流管式伺服阀冲蚀磨损特性[J].航空学报,2015,36(5):1548-1555.
[6]訚耀保,付嘉华,金瑶兰.射流管伺服阀前置级冲蚀磨损数值模拟[J].浙江大学学报(工学版),2015,2252-2260.
[7]张宏,熊诗波,梁义维,等.液压阀冲蚀磨损特性分析与结构探讨[J].煤炭学报,2008,33(2):214-217.
[8]Okita R,Zhang Y L,Mclaury B S,et al.experimental and computational investigations to evaluate the effects of fulid viscosity and particle size on erosion damage[J].Journal of Fluids Engineering,2012,134(6):1-13.
[9]Takaffoli M,Papini M.Finite element analysis of Single impacts of angula rparticles on ductile targets[J].Wear,2009,267:l44-151.
[10]Huser A,Kvemvold O.Prediction of sand erosion in process and pipe components[C]//Proc 1st North American Conference on Multiphase Technology.Banff,Canada,1998.
[11]Edwards J K.Evaluation of alternative pipe bend fittings in erosive service Proceedings of ASMEFEDSM[J].ASME 2000 Fluids Engineering Division Summer Meeting,Boston,June 2000.
[12]丁矿,朱宏武,张建华,等.直角弯管内液固两相流固体颗粒冲蚀磨损分析[J].油气储运.2013,32(3):241-246.
[13]徐文汗,李剑峰,刘子武,等.离心压缩机叶轮冲蚀磨损的动力特性研究[J].流体机械,2016,44(9):41-46.
[14]邱勇,李兴虎,牟鸣飞,等.基于FLUENT的新型GPF结构设计与参数优化[J].计算机辅助工程,2017,26(3):19-24.
[15]陶洪飞,滕晓静,赵经华,等.不同流量下全自动网式过滤器内部流场的数值模拟[J].水电能源科学,2016,34(12):180-185.
[16]宗全利,杨洪飞,刘贞姬,等.网式过滤器滤网堵塞成因分析与压降计算[J].农业机械学报,2017,48(9):215-222.
[17]侯宗宗,王宾宾,王要伟.船舶压载水过滤器内部流场的数值研究[J].流体机械,2018,46(8):36-39.
[18]徐莉萍,马志勇,南晓青.压载水过滤器流场压降模拟分析[J].流体机械,2016,44(9):53-56.