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1、雙向豎井貫流泵裝置優(yōu)化設計與實驗石麗建1?劉新泉2?湯方平1姚悅鈴3?謝榮盛1?張文鵬11揚州大學水利與能源動力工程學院 揚州225100；2江蘇省水利勘測設計研究院有限公司 揚州225100；3浙江同濟科技學院信息系 杭州311231摘要：為探求雙向豎井流道水力設計方法和完善雙向豎井流道優(yōu)化型式，對雙向豎井流道進行內(nèi)外型線及分叉段型式進行優(yōu)化設計?；跇藴蔾-ε紊流模型和雷諾時均的N-S方程，結(jié)合龍山水力樞紐工程運用CFD軟件對雙向豎井貫流泵裝置進行優(yōu)化設計。計算并比較了不同豎井出水流道方案的水力損失，揭示了不同方案豎井流道內(nèi)部各段水
2、力損失分布規(guī)律，比較分析了不同方案豎井出水流道內(nèi)部流場及速度分布規(guī)律，最后結(jié)合模型試驗結(jié)果，證實了雙向豎井流道優(yōu)化設計的可靠性。優(yōu)化結(jié)果表明：豎井分叉段設計好壞直接決定豎井后半段水力損失，通過調(diào)整豎井內(nèi)外輪廓線可以有效減小豎井出水流道的水力損失，提升貫流泵裝置外特性。優(yōu)化后豎井貫流泵裝置反向運行最高效率達60.5％，較優(yōu)化前提高3.7％；正向效率達到?72.18％，較優(yōu)化前提高1.67％。模型試驗反向運行最高效率57.56％，正向運行最高效率72.67％。雙向泵；豎井流道；優(yōu)化設計；數(shù)值計算OptimizeDesignandExperi
3、mentalAnalysisofBidirectionalShaftTubularPumpDeviceShiLijian1LiuXinquan2TangFangping1YaoYuelin3XieRongsheng1ZhangWenpeng1(1.?SchoolofHydraulicEnergyandPowerEngineering,YangzhouUniversity,Yangzhou225100,China?2.JiangsuSurveyingandDesignInstituteofWaterResourcesCo.Ltd,Yang
4、zhou225100,China?3.ZhejiangTongjiVocationalCollegeofScienceandTechnology,Hangzhou311231,China）Abstract:Toexplorehydraulicdesignmethodandimproveoptimizationtypeofthebidirectionalshaftpassage,thispaperdotheoptimizationdesignresearchofinsideandoutsidelineandbifurcationsegme
5、nttypeofthebidirectionalshaftpassage.Basedonthestandardk-εturbulencemodelandthereynoldsaveragedN-Sequation,combinedlongsanhydraulicprojectusingCFDsoftwaretooptimizeanddesignthebidirectionalshafttubularpumpdevice.Calculateandcomparethehydrauliclossandvelocitydistributioni
6、ndifferentshaftoutletconduitschemes,revealsthedifferentsegmentshydrauliclossdistributionofdifferentshaftoutletconduitschemes.Finally,combinedwiththemodeltestresults,confirmedthereliabilityoftheoptimizationdesignofthebidirectionalshaftflowpassage.Optimizationresultsshowth
7、attheshaftbifurcatedsegmentdesigndirectlydeterminesthehydrauliclossofthelatterpartshaftpassage.Throughadjustingtheshaftinnerandoutercontourlinescaneffectivelyreducethehydrauliclossoftheshaftoutletconduit,andenhancethetubularpumpdevicehydrauliccharacteristics.Theefficienc
8、ycurveoftheoptimizedschemeishigher,andtherangeofthehighefficiencyareaiswiderthanthatoftheinitialscheme,
