流量对多相混输泵内气液两相分布规律的影响  

Influence of Flow Rate on Gas-liquid Two-phase Distribution in Multiphase Pump

作　　者：史广泰[1,2] 李海英 Shi Guangtai;Li Haiying(Key Laboratory of Fluid and Power Machinery,Ministry of Education,Xihua University,Chengdu 610039,China;School of Energy and Power Engineering,Xihua University,Chengdu 610039,China)

机构地区：[1]西华大学流体及动力机械教育部重点实验室,四川成都610039 [2]西华大学能源与动力工程学院,四川成都610039

出　　处：《甘肃科学学报》2021年第6期1-5,28,共6页Journal of Gansu Sciences

基　　金：国家重点研发计划(2018YFB0905205);中国博士后科学基金特别资助(2017T100077);中国博士后科学基金面上资助(2016M600090);四川省教育厅科研项目资助(重点项目)(17ZA0366)。

摘　　要：为了分析流量对多相混输泵内气液两相分布规律的影响,基于κ-ε湍流模型,利用Fluent软件在不同流量下对多相混输泵内的三维流态进行数值计算,分析和总结了混输泵内气液两相分布规律。结果表明,随着流量的增大,叶轮流道内最大气相体积分布区域逐渐减小,其分布位置由动叶轮出口逐渐向静叶轮轮毂处转移,同时发现随着流量的增加,在相同叶高处气相分布越来越均匀,另外在小流量下多相混输泵压缩级内的气相分布变化较大。研究结果可为多相混输泵的优化设计和性能改善提供参考。In order to analyze the effect of the flow rate on the distribution law of gas-liquid two-phase in the multiphase pump,based on theκ-εturbulence model,Fluent software is used to calculate the three-dimensional flow in the multiphase pump under the different flow rate,and the distribution law of gas-liquid two-phase within the multiphase pump are studied.The results show that with the flow rate increase,the region of maximum gas volume distribution in impeller decreased,and the distribution position gradually shifted from the outlet of the impeller wheel to the hub of the static impeller.In addition,the gas phase more and more evenly distributes at the same blade height with the flow rate increase.The gas phase distribution in the compression stage of the multiphase pump changes greatly at low flow rate.The results can be used as a reference for the optimization design and performance improvement of multiphase mixed pump.

关 键 词：混输泵 流量 相态分布 数值计算 含气率 

分 类 号：TH312[机械工程—机械制造及自动化]