携砂液流对除砂器针型阀冲蚀作用模拟研究  

Simulation of erosion of carrying sand flow to needle valve in desander

作　　者：崔之健[1] 董超云 黄凯亦 周加明[3] 郑建刚 张丽春[5] 

机构地区：[1]西安石油大学石油工程学院,陕西西安710065 [2]广东石油化工学院石油工程学院,广东茂名525000 [3]中国石油天然气管道局国际事业部,河北廊坊065000 [4]长庆油田分公司超低渗透油藏第一项目部,甘肃合水745400 [5]河北联合大学矿业工程学院,河北唐山063009

出　　处：《西安石油大学学报（自然科学版）》2014年第6期54-57,64,共5页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：中石油集团项目"压裂返排液处理与再利用技术研究与应用"(编号:2014T-003-007)

摘　　要：基于液固两相流和冲蚀理论,对除砂器中携砂液流通过针型阀时对阀内的冲蚀进行数值模拟,直观地得到其压力分布和内部流动特性,并通过计算得到易冲蚀点位置和最大冲蚀速率。结果表明,针型阀的阀芯和内表面冲蚀比较严重,内表面顶部是冲蚀最严重区域,冲蚀速率是阀芯顶端面的3倍多。研究结果为针型阀局部加强处理提供了一定依据。The numerical simulation of the erosion of carrying sand liquid flow to the needle valve in a desander is carried out based on the liquid-solid two-phase flow theory and the erosion theory,the pressure distribution on the surface of the needle valve and the flow characteristics in the needle valve are gained,and the position where the erosion can easily be generated and the maximum erosion speed are determined.The results show that the erosion on the surface of valve core and the inner surface of the valve is serous,and the most serious erosion region is at the top of the inner surface of the needle valve,where the erosion speed is three times as much as that at the top of valve core.The results can provide the basis for the local enhancement treatment of the needle valve.

关 键 词：除砂器 针形阀 冲蚀 模拟研究 

分 类 号：TE934.2[石油与天然气工程—石油机械设备]