多臺排污泵的工況管理及變頻控制.pdf

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3、ct：MultipleSewagePumpsWorkingConditionManagementandFrequencyConversionControISpeciality：Name：Instructor：MaterialEngineeringMiFengjiang(signature)ZhouHaobin(signatureDengXiaoqing(signatureABSrI’RACrI’Thereweresomeproblems

4、inthesewagedrainagepumpingstationsystem，suchaslow1evelofhighl逾andlargeenergyconsumption，frequentstartandstoppumpequipment，andthelackofprejudgmentabilityforsewagelevel，whensewageinsewagepumpingstationsystemispumpedmanuall

5、yAtpresentthisoperationmodeWasmainlySosewageinthestationWouldbeoverflowedontheroadsurfacewhenlargefluxinthesewagestationinthefloodprone，causingtheenvironmentalpollutionorsafetyaccidentsFortheexistentproblemsofthesewagedr

6、ainagepumpingstationsystem，citysewagepumpingstationandpumpunitastheobjectofstudyandBsewagepumpingstationinxi’anasamodel，thepaperconductedthevariablefrequencycontrolmethodforenergysaving，safetyandenvironmentalprotectionAf

7、teranalysisofuncertainty,nonlinearityandcomplexlagofsewagepumpingstation，PLCWaschosenascontroller,inverterWasselectedastheexecutivemechanisminthecontrolmethodThroughanalyzingcirculationofpumpingstationandpumps，aseriesmea

8、nsofenergyandpollutionreducingwereproposed，mainlyatdroppinglift，thevariablefrequencycontrol，optimalcombinationofunitThepumpunitswererunninginhighefficiencyareaandsewagelevelremainedconstant，bycontrollingthemultipleparame

9、terofthesewagepumpingstation，suchaspumpingstationliquidlevel，waterlevel，flowThepaperhasdesignedthehardwareactuatorandsoftwareoperationsystem，carriedontheruninsewagepumpingstationB，obtainedthepracticaldata，andthedatahasan

10、alyzedTheresuksshowedthatusingvariablefrequencycontrolschemewiththemanagementstrategyofpumpswasfeasible，andavoidedthesewagefromwellsoverflowontheroad，andtherewas219％energy-savingeffect，comparedwiththeformerandtheresultso

11、ftheoreticalanalysisTheoptimaloperationofpumpsgroup，operatingmodemanagementstrategy,variablefrequencycontrolmethodintroducedinthepaper,theywerecertainguidingsignificancetothesewagepumpingstationmanagementKeywords：pumps，s