螺旋轴流式多相泵多级可压缩模拟研究  

Research on Multi-stage Compressible Simulation of Helico-axial Multiphase Pump

作　　者：孔祥领 吕杨 高进伟 曹杉 朱宏武[2] 

机构地区：[1]中国石油技术开发公司 [2]中国石油大学(北京)机械与储运工程学院

出　　处：《石油机械》2016年第5期77-81,86,共6页China Petroleum Machinery

基　　金：国家863计划项目"油气混输泵系统关键技术研究"(2007AA09Z316)

摘　　要：基于漂移模型的基本理论,考虑多相输送泵中气体的可压缩性,建立了多相泵三维、多级可压缩数值计算模型,对在气相可压缩下螺旋轴流式多相泵内流场进行探索性研究,着重研究多相泵的增压随着压缩单元级数的变化规律。对试验样机的研究表明,对比多级可压缩模型和不可压缩模型预测的增压发现,当含气体积分数超过30%时,两者误差超过16.45%,多相泵的增压随着级数不再呈线性增加,而是呈二次函数关系。模拟结果与试验结果平均误差在10%以内,验证了可压缩模拟方法的可靠性。Based on the drift flow model, considering gas compressibility in the multiphase pump, a 3?D multistage compressible model is built to study the helico?axial multiphase pump flow field?The study has been fo?cused on the pressure boosting changes of the multiphase pump with the number of compression unit?Studies on the test prototype show that, by comparing the pressure boosting results from multistage compressible model and incom?pressible model, when the gas volume fraction is more than 30%, the error of the results is more than 16?45%, and the pressure boosting of the multiphase pump is no longer a linear but a quadratic increase with the increase of stages?The average error of simulation and experimental results is less than 10%, verifying the reliability of the simulation method considering gas compressibility.

关 键 词：多相泵 漂移流模型 多级可压缩 含气体积分数 数值模拟 

分 类 号：TE973.5[石油与天然气工程—石油机械设备]