中国石油大学学报（自然科学版）Issue(6)：134-139,6.DOI:10.3969/j.issn.1673-5005.2014.06.020
全金属单螺杆泵工作性能的仿真与实验研究
Research on operating characteristic of metal progressive cavity pump using simulation and experimental method
摘要
Abstract
Using FLUENT software, the double lobes metal progressive cavity pump was analyzed with the 3D dynamic mesh meth-od, and the eccentric rotation of the rotor in the stator was studied. The CG macro function which could make the rotor rotate was proposed. The influence of different conditions on the pump performance was studied using simulation and experimental methods. The results show that in the environment of thermal recovery of heavy oil, the increase of the rotating speed can effectively improve the volumetric efficiency and pump efficiency for the oil of lower viscosity (<50 mPa·s); in the environment of cold production of heavy oil, when the rotating speed increases, the pump efficiency increases in the beginning and then decreases for the oil of high-er oil viscosity (> 50 mPa·s). Because of the frequency of the contact between stator and rotor, the positive pressure and fric-tional resistance of the rotor increased with the increase of rotating speed, which makes the pump efficiency decrease. The increase of the speed can significantly improve the volumetric efficiency and overall efficiency of the metal progressive cavity pump for the conveying of a low viscosity liquid, but much higher speed also can cause the reduction of overall efficiency; volumetric efficiency and overall efficiency basically remain unchanged with the change of the differential pressure and the speed for the conveying of a high viscosity liquid; which is more suitable for the transportation of higher viscosity liquid.关键词
全金属螺杆泵/CG 宏/动网格/黏度/转速/容积效率/泵效Key words
metal progressive cavity pump/CG macro/dynamic mesh/viscosity/rotation speed/volumetric efficiency/o-verall efficiency分类
能源科技引用本文复制引用
姜东,石白妮,李增亮,郭海滨..全金属单螺杆泵工作性能的仿真与实验研究[J].中国石油大学学报（自然科学版）,2014,(6):134-139,6.基金项目
中国石化股份公司科技攻关项目(P12133) （P12133）
