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针对我国离心泵效率低、抗汽蚀性能差、曲线驼峰和过载等问题,建立了以性能曲线无驼峰、离心泵无过载为约束条件,离心泵效率最大和汽蚀余量最小为目标函数的优化数学模型。采用遗传算法对各参数进行求解,避免了局部寻优,获得了全局最优解。分析结果表明,与传统方法设计的离心泵进行对比,在离心泵效率、抗汽蚀性能和曲线驼峰等各项性能方面得到了较大改善,同时还解决了离心泵过载问题,得到了性能优良的离心泵,为离心泵设计提供了重要的参考依据。
Aiming at the problems of low efficiency, bad cavitation resistance, curve hump and overloading in our country, aiming at the problem of no hump in performance curve, no overload of centrifugal pump, maximum efficiency of centrifugal pump and minimum of cavitation allowance Optimize the mathematical model. The genetic algorithm is used to solve each parameter, which avoids the local optimization and obtains the global optimal solution. The analysis results show that compared with the centrifugal pump designed by the traditional method, the pump efficiency, cavitation erosion resistance and curvilinear hump are greatly improved. At the same time, the problem of overloading of the centrifugal pump is solved and the performance is excellent Centrifugal pump, Centrifugal pump design provides an important reference.