排灌机械工程学报
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排灌机械工程学报  2012, Vol. 30 Issue (1): 20-24    DOI: 10.3969/j.issn.1674-8530.2012.01.005
泵理论与技术 最新目录 | 下期目录 | 过刊浏览 | 高级检索 Previous Articles  |  Next Articles  
离心泵多工况水力性能优化设计方法
王凯, 刘厚林, 袁寿其, 吴贤芳, 王勇
(江苏大学流体机械工程技术研究中心, 江苏 镇江 212013)
Optimization method for hydraulic performance of centrifugal pump at multi operation points
WANG Kai, LIU Hou-Lin, YUAN Shou-Qi, WU Xian-Fang, WANG Yong
(Research Center of Fluid Machinery Engineering and Technology, Jiangsu University, Zhenjiang, Jiangsu 212013, China)
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摘要 基于全局优化算法和各项损失计算的离心泵能量性能计算模型,提出一种离心泵多工况水力性能优化设计方法.该方法以原始设计的关键几何参数值为初始条件、设计工况的扬程为约束条件、多个工况的加权平均功率最小为目标,同时采用自适应模拟退火算法对离心泵能量性能计算模型进行求解,采用超传递近似法来确定各目标函数的权重因子,并采用该方法对一比转数为129.3的离心泵进行了多工况优化,最后分别对原设计和多工况优化设计进行了数值计算,计算结果表明:0.6Qd 和1.2Qd工况下,多工况优化得到的功率低于原始设计,而设计工况下,多工况优化得到的功率比原始设计略高;多工况优化得到的3工况点加权平均功率比原始设计低0.06%;多工况优化的3点加权平均效率则比原始设计高0.46%.研究结果对于离心泵的节能设计具有比较重要的参考价值.
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王凯
刘厚林
袁寿其
吴贤芳
王勇
关键词离心泵   号多工况   号自适应模拟退火算法   号加权平均功率   号优化设计     
Abstract: An optimization method for the hydraulic design of centrifugal pumps at multioperation points was proposed by means of a global optimization algorithm and a computational model for estimating hydraulic losses and energy performance of centrifugal pumps.In the method,the values of several key geometric parameters in an original design were used as the initial conditions,and the design head was considered as a constraint condition,and the weighted average shaftpower at multiple operation conditions was chosen as the objective function.The adaptive simulated annealing algorithm was used to solve the model of hydraulic losses and energy performance.Additionally,the supertransitive approximation method was applied to update optimal weighted coefficients in the objective function.A centrifugal pump with a special speed of 129.3 was optimized with the method.The CFD numerical simulations were done for the original design and the optimized one,respectively.It was shown that the shaftpower of the optimized case is less,but the head is higher than the original design at 0.6Qd and 1.2Qd.The weighted average shaftpower optimized is decreased by 0.06%,but the weighted average efficiency rises by 0.46% compared with the original design.The results could be really useful to design an energysaving centrifugal pump.
Key wordscentrifugal pump   multioperation condition   adaptive simulated annealing   weighted average shaftpower   optimization design   
收稿日期: 2011-04-06; 出版日期: 2012-01-30
基金资助:

国家杰出青年科学基金资助项目(50825902); 国家自然科学基金资助项目(51079062); 江苏省333高层次人才培养工程科研项目

通讯作者: 王凯(1981—),男,安徽淮北人,博士研究生(wangiak@yahoo.com.cn),主要从事离心泵多工况水力设计方法的研究.   
作者简介: 刘厚林(1971—),男,江苏溧水人,研究员,博士生导师(liuhoulin@ujs.edu.cn),主要从事水泵现代设计理论与方法的研究.
引用本文:   
王凯,刘厚林,袁寿其等. 离心泵多工况水力性能优化设计方法[J]. 排灌机械工程学报, 2012, 30(1): 20-24.
WANG Kai,LIU Hou-Lin,YUAN Shou-Qi et al. Optimization method for hydraulic performance of centrifugal pump at multi operation points[J]. Journal of Drainage and Irrigation Machinery Engin, 2012, 30(1): 20-24.
 
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