流体粘度对涡轮流量计计量特性影响研究  

Influence of fluid viscosity on metering characteristics of the turbine flowmeter

作　　者：孙兴伟[1,2] 李宜霖 杨赫然 董祉序[1,2] 王海燕 Sun Xingwei;Li Yilin;Yang Heran;Dong Zhixu;Wang Haiyan(College of Mechunical Engineering,Shenyang Unirersily of Teehnology,Shenyang 110870,China;Key Laboratory of Numerical Control Manufacturing Technology for Complex Surfaces of Lioning Prorince,Shenyang 110870,China;Shenyang Baiyun Machinery Co.,Ltd.,Shenyang 110870,China)

机构地区：[1]沈阳工业大学机械工程学院,沈阳110870 [2]辽宁省复杂曲面数控制造技术重点实验室,沈阳110870 [3]沈阳白云机械有限公司,沈阳110027

出　　处：《仪器仪表学报》2022年第4期182-190,共9页Chinese Journal of Scientific Instrument

基　　金：国家自然科学基金(52005347);中央引导地方科技发展专项资金(2020JH6/10500048)项目资助。

摘　　要：固井泥浆流量计是应用在油田固井工程中进行泥浆流量计量的仪器,属于切向式涡轮流量计。为探究流体条件对其计量特性的影响机理,首先建立流量计叶轮驱动力矩和阻力矩的数学模型,在此基础上建立仪表系数K的模型,并发现流体粘度是影响因素之一。其次,考虑到实际固井作业中,粘度对仪表计量特性的影响规律较为复杂,因此使用有限元分析软件,建立6DOF叶轮被动旋转流体仿真计算模型,对多种流体粘度35、45、55、65、75 mPa·s条件下的流场特性以及仪表系数特性进行仿真分析,总结粘度变化对流量计计量特性的影响规律。最后通过实际采集的固井测量数据和仿真数据进行比较,平均误差为1.38%,验证了建立的仿真模型的有效性。The cementing mud flowmeter is an instrument that is used to measure mud flow rate in oilfield cementing engineering. It belongs to tangential turbine flowmeter. To explore the influence mechanism of fluid conditions on its metering characteristics, the mathematical models of the driving moment and the resistance moment of the impeller of the flow meter are firstly formulated. Based on this, the instrument coefficient K model is established. And the fluid viscosity is confirmed to be one of the influencing factors. Secondly, in actual cementing operation, the influence of viscosity on meter measurement characteristics is complicated. Therefore, the finite element analysis software is used to establish the 6 DOF impeller passive rotating fluid simulation calculation model. The flow field characteristics and instrument coefficient characteristics under the conditions of various fluid viscosity 35, 45, 55, 65, 75 mPa·s are simulated and analyzed. And the influence law of viscosity change on the flow meter measurement characteristics is summarized. Finally, the average error is 1.38% by comparing the actual cementing measurement data with the simulation data, which evaluates the effectiveness of the simulation model.

关 键 词：涡轮流量计 仪表系数 叶轮 流体粘度 

分 类 号：TH89[机械工程—仪器科学与技术]