摘要
针对双王城离心泵因设计扬程与实际使用扬程不匹配导致运行效率低的问题,采用AcuSolve计算流体软件结合实验数据对不同供水工况的内流场进行数值模拟,并通过HyperStudy软件耦合全局响应面法(Global Response Surface Method,GRSM)与CFD仿真对叶轮切割方案开展优化研究。仿真显示:初始仿真结果与实验水泵效率误差小于5%,验证了模拟有效性;预测了切割量5%、10%、15%的V型叶片切割后性能曲线,表明随叶轮外径切割量增大,扬程逐步下降且最优工况点向小流量工况偏移;经优化后离心泵效率从初始59.54%提升至75%。可为低扬程工况下离心泵的高效运行调整及切割优化提供理论参考。
To address the issue of low operational efficiency in the Shuangwangcheng Centrifugal Pump caused by the mismatch between its design head and actual operating head,numerical simulations on the internal flow field under different water supply conditions were conducted using the AcuSolve computational fluid dynamics software combined with experimental data.Additionally,optimization studies on impeller cutting schemes were performed by coupling the global response surface method(GRSM)with CFD simulation via HyperStudy software.Simulation results indicated that:the initial simulation results had an error of less than 5% compared to experimental pump efficiency,verifying the validity of the simulation;performance curves after 5%,10%,and 15% V-type blade cutting were predicted,showing that as the impeller outer diameter cut increases,the head gradually decreases and the optimal operating point shifts toward lower flow rates;after optimization,the pump efficiency was improved from the initial 59.54%to 75%.This study provides a theoretical reference for adjusting efficient operation and optimizing impeller cutting of centrifugal pumps under low-head conditions.
作者
肖玉东
王洪超
李秉悦
王莹
韩永胜
XIAO Yudong;WANG Hongchao;LI Bingyue;WANG Ying;HAN Yongsheng(Shouguang South-to-North Water Diversion Water Supply Co.,Ltd.,Weifang 262700,Shandong,China;Department of Hydraulic Engineering,Shandong Water Conservancy Vocational College,Rizhao 276800,Shandong,China)
出处
《农业装备与车辆工程》
2025年第12期61-66,共6页
Agricultural Equipment & Vehicle Engineering
基金
山东水利职业学院2025年横向课题“供水泵站主离心泵宽流量高效率保持技术的开发与应用”(20250101)。
关键词
离心泵
效率提升
数值模拟
水力效率
叶轮切割
centrifugal pump
efficiency improvement
numerical simulation
hydraulic efficiency
impeller cutting
