长距离输水泵站中空气罐参数敏感度分析及正交优化设计  

Sensitivity analysis and orthogonal optimization design of air tank parameters in long-distance water transmission pump stations

作　　者：赵斌娟[1] 曹可凡 刘雨露 宋英南 陈汇龙[1] 戴斌[2] ZHAO Binjuan;CAO Kefan;LIU Yulu;SONG Yingnan;CHEN Huilong;DAI Bin(School of Energy and Power Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China;VAG Water Systems(Taicang)Co.,Ltd.,Taicang,Jiangsu 215400,China)

机构地区：[1]江苏大学能源与动力工程学院,江苏镇江212013 [2]阀安格水处理系统(太仓)有限公司,江苏太仓215400

出　　处：《排灌机械工程学报》2024年第3期243-249,共7页Journal of Drainage and Irrigation Machinery Engineering

基　　金：国家自然科学基金资助项目(51976078)。

摘　　要：为了探讨长距离输水泵站中空气罐的优化设计方法,以西北某长距离输水工程为例,以泵站水击最大正压水头和最小负压水头作为优化目标,以初始气体压力、高度直径比、连接管直径、进口阻力系数和出口阻力系数为优化变量,基于正交优化设计方法和KYPipe软件,采用极差分析法获得空气罐各参数对于水击最大正压水头和最小负压水头的影响,同时对得到的结果进行排序,比较并找到最优参数组合.结果表明:初始气体压力、连接管直径和出口阻力系数等因素对于水击最大正压水头和最小负压水头的影响程度较大,其中初始气体压力是最敏感的参数,对于最大正压水头和最小负压水头的影响程度最大;经过比较发现最优方案的参数组合为初始气体压力水头50 m、高度直径比4、连接管直径250 mm、进口阻力系数10、出口阻力系数5;相比原始方案,优化方案使泵站的水击最大正压水头降低4.98%、最小负压水头升高64.00%.A long-distance water transmission project in Northwest China was taken as an example to explore the optimization design method of air tanks in long-distance water transmission pump stations.The maximum positive pressure and minimum negative pressure of water hammer of the pump station were selected as the optimization objectives.The initial gas pressure,height-diameter ratio,connecting pipe diameter,inlet and outlet resistance coefficient were selected as optimization variables.Based on the orthogonal optimization design method and KYPipe software,the range analysis method was used to obtain the influence of various parameters of the air tank on the maximum positive pressure and minimum negative pressure of water hammer.Simultaneously,the obtained results were sorted,compared and the optimal parameter combination was found.The results show that the initial gas pressure,connecting pipe diameter and outlet resistance coefficient have a great influence on the maximum positive pressure and minimum negative pressure of water hammer.Among which the initial gas pressure is the most sensitive parameter and has the greatest impact on the maximum positive pressure and minimum negative pressure.After comparison,it is found that the parameter combination of the optimal scheme is initial gas pressure 50 m,height diameter ratio 4,connecting pipe diameter 250 mm,inlet resistance coefficient 10 and outlet resistance coefficient 5.Compared with the original scheme,the optimized scheme reduces the maximum positive pressure of water hammer by 4.98%and increases the minimum negative pressure by 64.00%.

关 键 词：空气罐 长距离输水泵站 水锤防护 敏感度分析 正交优化设计 

分 类 号：S277.9[农业科学—农业水土工程] TH311[农业科学—农业工程]