涡轮钻具叶片型线设计及流场模拟分析研究  

Study on Turbine Blade of Turbodrill Design and Simulation of Flow Field

作　　者：赵洪波[1,2] 刘宝林[1] 王建强[1,3] 王瑜[1] 

机构地区：[1]中国地质大学〈北京〉国土资源部深部地质钻探技术重点实验室,北京100083 [2]北京探矿工程研究所,北京100083 [3]中煤科工集团西安研究院,陕西西安710077

出　　处：《探矿工程（岩土钻掘工程）》2012年第11期29-32,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

基　　金：国家国际合作项目"万米深孔高温高压取心涡轮钻具及其应用技术"(2010DFR70920);国家深部探测专项课题"科学超深井钻探技术方案预研究"(201011063)

摘　　要：涡轮叶片的型线设计对涡轮钻具的性能影响很大。以外径为127 mm地质钻探用涡轮钻具为例,采用五次多项式来设计涡轮叶片的型线,使用SOLIDWORKS三维造型软件绘制了涡轮叶片的三维模型,并导入ANSYSFLOTRAN CFD模块,对不同粘度下的涡轮叶片的水力性能进行了分析,获得了较为直观的速度场和压力场分布状况。结果证明,通过CFD分析,可以很好地将叶片型线的缺陷和不同状态下的涡轮钻具水力性能展现出来,对涡轮叶片的水力性能预测具有指导作用。The shape of turbine blade has great impact on the performance of turbodrills. Take the example of turbodrill with diameter of 127 mm for geological drill; it is proposed to determine the configuration of the blade by quintic polynomi- al. Solidworks 3D modeling software was used in drawing three-dimensional model of the turbine blades. ANSYS FLOTRAN CFD was imported into the model, and hydraulic performances of the turbine blades under different viscosity were analyzed. From this simulation, abundant data of internal flow field have been obtained. Under CFD analysis, it confirms that the de-fects and hydraulic performance of turbodrill under different conditions are well demonstrated, which has guiding role for prediction of blade hydraulic performance.

关 键 词：高温高压 涡轮钻具 叶片 造型 流场 

分 类 号：P634.4[天文地球—地质矿产勘探]