为提高Q25H52 型高速离心泵的扬程和效率,通过P-B实验选取了叶轮的3 个结构参数,即叶片出口安放角、出口宽度和包角,并使用OptiSLang软件采用拉丁超立方设计方法创建了设计样本.以离心泵扬程和效率最高为优化目标,建立结构参数与优化目标之间的Kriging模型,利用遗传算法寻找叶轮最佳结构参数.研究结果表明:在额定工况下,优化后泵的效率提高了 2.94%,总扬程提高了2.17 m.
Multi-Objective Optimization of Centrifugal Pump Impeller Based on OptiSLang
In order to enhance the efficiency and head of the Q25H52 high-speed centrifugal pump,a P-B experi-ment is conducted to select three structural parameters:blade exit angle,exit width and wrap angle.Design sam-ples are created using OptiSLang software and the Latin hypercube design method.With the highest head and effi-ciency of the centrifugal pump as the optimization objectives,a Kriging model is then established between the struc-tural parameters and the optimizing objective.Genetic algorithm is employed to find the optimal structural parame-ters for the impeller.The results show that under the rated condition,the actual efficiency of the optimized pump has increased by 2.94%,and the total head has increased by 2.17 m.
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