基于固液两相湍流的离心泵计算流体动力学分析  

Computational Fluid Dynamics Analysis of Centrifugal Pump Based on Solid-liquid Two-phase Turbulence

作　　者：胡姿铭 郭枭驰 史宝成 张敏[1,2] 张兴凯 刘凯[1,2] Hu Ziming;Guo Xiaochi;Shi Baocheng;Zhang Min;Zhang Xingkai;Liu Kai(Hubei Key Laboratory of Oil and Gas Drilling and Production Engineering,Yangtze University,Wuhan,Hubei 430100,China;Hubei Oil and Gas Storage and Transportation Engineering Research Center,Yangtze University,Wuhan,Hubei 430100,China;Production Operation Department of PetroChina Chang-qing Oilfield Company,Xi'an,Shaanxi 710000,China)

机构地区：[1]油气钻采工程湖北省重点实验室(长江大学),湖北武汉430100 [2]湖北省油气储运工程中心(长江大学),湖北武汉430100 [3]中国石油长庆油田分公司生产运行部,陕西西安710000

出　　处：《化工设备与管道》2024年第6期50-58,共9页Process Equipment & Piping

基　　金：国家自然科学基金面上项目(51974033);油气藏地质及开发工程全国重点实验室(PLN2023-11);吉林省智慧管道与流体力学重点实验室(IPFM2022-04)。

摘　　要：为了分析离心泵输送固液两相流时叶轮内部流场和流动规律,应用FLUENT软件分别对两种不同叶片的离心泵内的固液两相流场进行了数值模拟。采用RNG湍流模型对比分析两者的速度场和压力场,对固液两相离心泵性能进行了预测。结果表明:本数值模拟的结果与实验测量结果比较吻合,证明了本文采用的固液两相湍流动力学模型是合理可行的,具有较大的工程应用价值;两种叶轮的各流道平均压力分布相似,但复合叶片的扬程比五叶片高;在固相颗粒体积分数相同的前提下,具有不同叶片参数的两种泵的效率随固相粒径的变化有较大差异。无论哪一种泵都无法保证在各种工况条件下均具有相对高的效率。因此,对固液两相离心泵而言,根据浆体的性质进行针对性的设计和使用是一条重要原则。In order to analyze the flow field and flow law inside the impeller when the centrifugal pump conveys the solid-liquid two-phase flow,numerical simulation of the solid-liquid two-phase flow field inside the centrifugal pump with two different vanes was carried out by applying FLUENT software.The RNG turbulence model was used to compare and analyze the velocity and pressure fields of the two,and the performance of the solid-liquid two-phase centrifugal pump was predicted.The results show that:the results of this numerical simulation are more consistent with the experimental measurements,which proves that the solid-liquid two-phase turbulence dynamics model adopted in this paper is reasonable and feasible,and has a greater value of engineering applications;the average pressure distribution of each flow channel of the two types of impellers is similar,but the head of the composite blade is higher than that of the five blades;under the same solid-phase particle volume fraction conditions,the efficiency of the two pumps with different vane parameters with the solid-phase particle size varies greatly.No matter which kind of pump can not guarantee that in a variety of working conditions have relatively high efficiency.Therefore,the solid-liquid two-phase pump,according to the properties of the slurry targeted design and use is an important principle.

关 键 词：固液两相湍流 离心泵 性能预测 数值模拟 计算流体力学 

分 类 号：TQ051.3[化学工程]