基于Kriging模型的气液两相离心泵优化设计  

Optimization design of gas-liquid two-phase centrifugal pump based on Kriging model

作　　者：许继洋 梁淑琪 杨国栋 王彦伟[1] XU Jiyang;LIANG Shuqi;YANG Guodong;WANG Yanwei(Hubei Provincial Engineering Technology Research Center of Green Chemical Equipment,School of Mechanical and Electrical Engineering,Wuhan Institute of Technology,Wuhan 430205,Hubei Province,China;School of Mechanical and Electrical Engineering,Hebei Vocational University of Technology and Engineering,Xingtai 054000,Hebei Province,China;School of Mechanical and Electrical Engineering,Zhengzhou Polytechnic Vocational College,Zhengzhou 450000,Henan Province,China;YUTONG Bus Co.,Ltd.,Zhengzhou 450061,Henan Province,China)

机构地区：[1]武汉工程大学机电工程学院湖北省绿色化工装备工程技术研究中心,湖北武汉430205 [2]河北科技工程职业技术大学机电工程学院,河北邢台054000 [3]郑州理工职业学院机电工程学院,河南郑州450000 [4]宇通客车股份有限公司,河南郑州450061

出　　处：《化学工程》2025年第4期65-71,共7页Chemical Engineering(China)

基　　金：国家自然科学基金资助项目(51373186);湖北省教育厅重点科研项目(D20161506)。

摘　　要：为提高气液两相条件下高速离心泵的扬程及效率,以型号为Q5H26的高速离心泵为研究对象,分析不同含气率(体积分数)对离心泵性能的影响。结果表明:含气率越大,扬程和效率越低。基于Kriging模型对离心泵的蜗壳以及叶轮参数进行全面的敏感性分析,并采用NLPQL算法对气液两相条件下高速离心泵进行优化设计,以期提高其运行效率以及扬程。对优化后的模型进行数值模拟计算,并通过实验对比优化前后模型泵的运行效率以及扬程。研究结果表明:在额定工况、含气率为10%下,优化后的模型泵的实际效率提高了8%,扬程提高了1.5 m,优化效果较为显著。研究结果可为提高气液两相条件下高速离心泵的性能提供一种行之有效的方法。In order to improve the head and efficiency of high-speed centrifugal pump under gas-liquid two-phase conditions,the high-speed centrifugal pump model Q5H26 was taken as the research object.The effects of different gas content(volume fraction)on the performance of centrifugal pump were analyzed.The results show that the larger the gas content,the lower the head and the efficiency.The parameters of the worm gear and the impeller of the centrifugal pump were analyzed comprehensively and sensitively based on the Kriging model.In order to improve the operating efficiency and head,the parameters of the high-speed centrifugal pump were optimized using the NLPQL algorithm under the gas-liquid two-phase conditions.The numerical simulation of the optimized model was carried out,and the operation efficiency and head of the model pump before and after optimization were compared by experiments.The results show that in the rated working condition,the gas content rate of 10%,the optimized model pump efficiency is increased by 8%,the head is increased by 1.5 m,and the optimization effect is more significant.The results can provide an effective method for improving the performance of the high-speed centrifugal pumps under the conditions of gas-liquid two-phase.

关 键 词：离心泵 气液两相 KRIGING模型 NLPQL算法 优化设计 

分 类 号：TH311[机械工程—机械制造及自动化]