一种井下发电机的涡轮设计及其测试  

A Turbine Design and Test for A Downhole Generator

作　　者：吕官云[1] 孙峰[1] 冯进[2] 张先勇[1] 

机构地区：[1]中石化胜利石油管理局钻井工艺研究院,山东东营257017 [2]长江大学机械工程学院,湖北荆州434023

出　　处：《石油天然气学报》2011年第5期152-155,339,共4页Journal of Oil and Gas Technology

基　　金：国家“863”计划项目(2009AA093501);中国石油化工集团公司重大攻关项目(JP05011)

摘　　要：根据涡轮机械一元流理论设计井下发电机涡轮的叶栅参数,叶片造型设计实现计算辅助设计,对所设计涡轮进行了三维建模和涡轮机械性能的CFD预测,其预测结果与试验基本一致,表明预测结果可作为设计决策的重要依据。在CFD流道建模中,流道模型包含了径向间隙,克服了跨叶片流道模型需要引进容积效率经验系数的局限性,提高了预测涡轮机械特性的准确性。Turbine cascade of downhole generator was designed based on one dimensional flow theory of turbo-machinery.Blade profile was generated by CAD method.Three-dimensional passage model for the turbine was built and the mechanical performance was predicted by CFD software.The predicted results are basically consistent with that of test and can be used as important reference for design decisions.The passage model includes the radial clearance.So the prediction accuracy of turbine hydraulic performance is improved.

关 键 词：轴流涡轮 叶栅设计 叶片造型 CFD模拟 性能试验 

分 类 号：TE931.2[石油与天然气工程—石油机械设备]