Page 122 - 《水资源与水工程学报》2022年第5期
P. 122
! 33 " ! 5 # & ' ( ) & * + , - Vol.33No.5
2022 $ 10 % JournalofWaterResources&WaterEngineering Oct.,2022
DOI:10.11705/j.issn.1672-643X.2022.05.14
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HIJKL:TV136 .2 MNOPQ:A MRSL:1672643X(2022)05011806
Experimentalanalysisandpredictionofenergyperformanceparametersof
Sshapedtubularpumpingsystem basedonBP-ANN
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1
2
SHENQiangru,LYuting,LUMeining,JIANGDongjin,YANGFan 2
(1.SchoolofTransportationandCivilEngineering,NantongUniversity,Nantong226019,China;2.Collegeof
HydraulicScienceandEngineering ,YangzhouUniversity,Yangzhou225009,China;3.JiangsuHongze
LakeWaterConservancyProjectManagementOffice ,Huaian223005,China)
Abstract:Whentherotatingspeedchangeofthepumpexceeds20% oftheoriginalspeed,thecalculat
edvaluesofitsperformanceparametersbythepumpsimilaritylawaregreatlydifferentiated.Inorderto
analyzeandsolvethisproblem ,asurfacefunctionequationisconstructedtopredicttheflowrateandaxi
alpowerofthepumpdevicebasedonthetwoparametersofthepumpspeedandtheheadofthepumpde
vice.Theenergyefficiencyperformancecurvewithnonlinearcharacteristicsofthetubularpumpdeviceat
differentspeedsisconvertedtoapredictionmodeloftheenergyefficiencyparametersofthetubularpump
deviceatdifferentspeedsbasedonBP-ANN.Meanwhile ,theinputmodeofthepredictionmodelisde
terminedtoestablishthenetworkstructureofBP-ANN.Accordingtotheverificationbytheexperimen
taldata,theabsolutedeviationofthepredictedpumpefficiencyislessthan1%,whichmeetstheaccu
racyrequirementsofpracticalengineeringapplications.Thismodelcanprovideareferenceforvariable
speedregulationandperformanceconversionofpumpdevices.
Keywords:tubularpump;pumpdevice;energyperformanceparameter;neuralnetwork;efficiency;
rotatingspeed
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