| 基于响应曲面法的氟塑料两相流泵优化设计 |
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| 引用本文： | 张德胜,梅剑,赵睿杰,黄俊,金永鑫.基于响应曲面法的氟塑料两相流泵优化设计[J].排灌机械工程学报,2020,38(9):898-903. |
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| 作者姓名： | 张德胜 梅剑 赵睿杰 黄俊 金永鑫 |
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| 作者单位： | 江苏大学国家水泵及系统工程技术研究中心,江苏 镇江212013;江苏大学国家水泵及系统工程技术研究中心,江苏 镇江212013;江苏大学国家水泵及系统工程技术研究中心,江苏 镇江212013;江苏大学国家水泵及系统工程技术研究中心,江苏 镇江212013;江苏大学国家水泵及系统工程技术研究中心,江苏 镇江212013 |
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| 基金项目： | 江苏省重点研发计划项目 |
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| 摘 要： | 为提高氟塑料两相流离心泵的效率及降低磨损率,基于离散颗粒模型(DPM)对氟塑料两相流泵内部流场进行模拟仿真,结合FINNIE磨损模型,对泵叶轮的磨损情况进行预测,采用响应曲面法,以叶轮的主要几何参数为变量,构建各优化目标的数学模型,利用Matlab绘制上述6个叶轮外形参数与各优化目标之间的3D响应面图形,并通过Matlab统一各数学模型,对SJB400-250-300型氟塑料离心泵叶轮的外形参数组合进行寻优,得到最优参数组合.研究结果表明,氟塑料离心泵叶轮的各外形参数之间存在交互性影响,当叶轮进口直径D1、叶片包角φ、叶片进口安放角β1、出口角安放角β2、叶片出口宽度b2取高水平,叶轮出口直径D2取低水平时,能够获得更好的综合性能,优化获得模型相较于原模型,效率提升8.98%、磨损率下降了6.64%.通过对参数和优化目标间的交互关系进行分析总结,得到了叶轮各几何参数及各性能参数之间交互作用对优化目标的影响,为氟塑料两相流离心泵的性能优化设计提供依据.
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| 关 键 词： | 离心泵 叶轮 效率 磨损 离散颗粒模型 响应面方法 |
| 收稿时间： | 2019-04-02 |
Response surface method-based optimization of impeller of fluoroplastic two-phase flow centrifugal pump |
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| ZHANG Desheng,MEI Jian,ZHAO Ruijie,HUANG Jun,JIN Yongxin.Response surface method-based optimization of impeller of fluoroplastic two-phase flow centrifugal pump[J].Journal of Drainage and Irrigation Machinery Engineering,2020,38(9):898-903. |
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| Authors: | ZHANG Desheng MEI Jian ZHAO Ruijie HUANG Jun JIN Yongxin |
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| Institution: | National Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China |
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| Abstract: | Steady two-phase flow in a fluoroplastic two-phase flow centrifugal pump was simulated based on discrete particle model,and the erosion rate in the impeller was predicted by using the Finnie erosion model for abrasive solid particles and the flow filed variables obtained to improve the pump efficiency and reduce the impeller erosion rate.Response surface method was used to establish mathematical models of objective functions in terms of impeller geometric parameters, including blade wrap angle φ, impeller inlet diameter D1, blade inlet angle β1, blade outlet angle β2, impeller outlet diameter D2, and blade outlet width b2. The three-dimensional response surfaces of various objective functions were plotted as a function of the six geometrical parameters in Matlab. Further, these mathematical models were unified in Matlab, and the impeller geometrical parameters of a fluoroplastic two-phase flow centrifugal pump of model SJB400-250-300 were optimized. Finally, the optimal combination of these parameters was obtained.The results show that there are interactions among these parameters. When D1, φ, β1, β2 and b2 are subject to the high levels and D2 is at the low level, the pump can achieve a better comprehensive performance. Compared with the original model, the pump efficiency is increased by 8.98%, and the erosion rate is decreased by 6.64%.By analyzing and summarizing the interactions between the parameters and the multiply objective functions, the influence of the interactions on the objective functions is obtained.These outcomes provide a reliable basis for the optimization design of fluoroplastic two-phase flow centrifugal pumps. |
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| Keywords: | centrifugal pump impeller efficiency wear discrete particle model response surface method |
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