下载
加入VIP
  • 专属下载特权
  • 现金文档折扣购买
  • VIP免费专区
  • 千万文档免费下载

上传资料

关闭

关闭

关闭

封号提示

内容

首页 Constant pressure water supply (one by one&#…

Constant pressure water supply (one by one)(恒压供水(一拖一)).doc

Constant pressure water supply …

yang彭洋
2019-01-09 0人阅读 举报 0 0 暂无简介

简介:本文档为《Constant pressure water supply (one by one)(恒压供水(一拖一))doc》,可适用于社会民生领域

Constantpressurewatersupply(onebyone)(恒压供水(一拖一))Constantpressurewatersupply(onebyone)(恒压供水(一拖一))Energysavingschemeofconstantpressurewatersupply(onebyone)IIntroductionofthecompanyShenzhendiriseElectricTechnologyCo,LtdisengagedintheresearchanddevelopmentofpowerelectronictechnologybyagroupofyearsAndhightechenterprisescreatedbyindustrialprofessionalsHaveanexperience,practice,andconstantlyInnovativehighqualitydevelopment,researchteamMainlyengagedinelectricaltransmission,industrialautomationinthefieldoffrequencyconversionSpeedcontrolandelectronicenergysavingproductssuchashightechdevelopment,productionandsalesThecompanyhasindependentlydevelopedDRSorientedcustomerdesignedspecialfrequencyconverter,DRShighperformanceACgeneralfrequencyconversiongovernor,DRShighintegration,highperformancegeneralfrequencyconversiongovernor,DRSACvectorVariablefrequencyspeedregulatorfourseries,morethanspecificationsproducts,fullyownedindependentintellectualpropertyrights,canmeetdifferentIndustrydemandfromdifferentcustomersItsgoodperformance,reliablequality,wontheuser'strustandappreciation,performanceTheuniquetechnicalcharacteristicsofTTStransducerCompaniesadheringtothe"customerfirst,reputationfirst,qualityfirst"principleAlwaysfollowthedevelopmentofworldtechnologyConstantlyintroducemoreadvanced,costeffectiveproducts,toprovidecustomerswithmorepowerfulproductsandtechnicalprotectionBarrierTwoEnergysavinganalysisofwatersupplysystemInthewatersupplysystem,thebasiccontrolobjectistheflow,thebasictaskofthewatersupplysystemistomeetUserdemandfortrafficAtpresent,thecommonflowcontrolmethodsincludevalvecontrolandspeedcontroloftwokindsvalvecontrolThatistocontroltheflowbyadjustingtheopeningofthevalveAtthispoint,thepiperesistanceofthewatersupplysystemwillvarywiththeopeningofthevalveThechangeinchange,whiletheheadcharacteristicsremainunchangedInthedesignofwatersupplysystem,thepumpheadandwatersupplyflowaretomeettheuser'smaximumpossibledemandAndselected,andleaveacertainmarginInpracticalapplications,thesystemismostlynegativeformostofthetimeItmustreducethevalveopeningandadjustthewatersupplyInthisway,theresistanceofthepipelineincreases,ResultinginalargenumberofclosurelossesThismethodofcontrolwillnotonlywastealotofmotoroutputpower,butalsobecauseofThewaterefficiencyofthewholesystemwillbegreatlyreducedasaresultofthechangeinthepiperesistancespeedcontrolThatis,bychangingthespeedofthepumptoadjusttheflow,whilethevalveopeningremainsunchanged(generallymaintainedthemaximumOpeningdegree)Whenthepumpspeedchanges,theheadcharacteristicsofthewatersupplysystemchange,whilethepiperesistancecharacteristicsremainunchangedUnderthiscontrolmode,thespeedofthewaterpumpmotorischangedandthewatersupplyflowofthepumpischangedbythefrequencyconversionspeedregulationtechnologyThequantitycanbechangedwiththechangeofwaterflowrate,andtherealsupplyanddemandbalancecanbereachedThewholesystemachievesthebestworkingefficiencyWiththematurityoffrequencyconversiontechnology,thiscontrolmodeisobtainedMoreandmorepopularizationandapplicationenergysavingtheorybasisAccordingtothefluidmechanicstheory,mostofthefluidtransmissionequipment(suchascentrifugalpumps,fans,etc)islostThedischargeQisproportionaltoitsspeedntheoutputpressureorliftPisproportionaltothesquareofthespeednoutputThepowerNisproportionaltothethreepowerofthespeedn,andcanbeexpressedasamathematicalformula:Q=K*nP=K*NN=Q*P=K*N(K,K,Kisaproportionalityconstant)Fromtheaboveprinciple,wecanreducethespeedofwaterpump,andtheoutputpowerofwaterpumpwilldecreasemoreForexample,willThepowersupplyfrequencyofthemotorisreducedfromHztoHz,andtheoretically,thefrequencychangeswiththeoutputpowerbeforethechangeTheratiois()=Ourlongtermpracticehasprovedthatinthewatersupplysystemaccessfrequencyconversionenergysavingsystem,theuseoffrequencyconversiontechnologytochangewaterPumpspeedtoadjusttheflowinthepipeline,toreplacethevalveadjustmentmode,canachieveobviousenergysavingeffectThepowersavingrateisaboveInaddition,thesoftstartingfunctionofthefrequencyconverterandthecharacteristicsofsmoothspeedregulationcanberealizedSmoothadjustmentofflow,reducestartupshockandprolongservicelifeofunitandtubesetThree,constantpressurewatersupplyenergysavingprogramAsmentionedabove,theflowisthebasiccontrolobjectofthewatersupplysystem,andthewatersupplyflowneedstobesatisfiedwiththeflowatanytimeTheamountofInawatersupplysystem,thewaterpressureinthepipelineadequatelyreflectstherelationbetweenwatersupplycapacityandwaterdemand:Ifthewaterflow,waterflowpipeline>waterpressurerisesupIfthewaterflow,waterflowpipeline<waterpressuredropdownIfthewatersupplyrate=waterflow>pipepressureunchangedTherefore,theconstantpressureofwaterinthepipelinecanensurethatthewatersupplycapacitymeetsthewaterdemand,ThisisthepurposeofconstantpressurewatersupplysystemBlockdiagramofconstantpressurewatersupplysystemTheblockdiagramoftheconstantpressurewatersupplysystem,watersupplyThepressureissetbytheuseronthePIDregulatorThepressuresensorwillreversetheactualpressureofthepipelineFedtothePIDregulator,obtainedbythePIDalgorithmThecomparisonvariableswillbeaccessibleinanalogquantitiesTothefrequencysettingendofthefrequencyconverter,andthenfromthefrequencyconverterControlthespeedofmotorandwaterpumpandadjustwateratlastPumpoutputflowtoconstantpressurewatersupplypurposes,fullThewholecontrolprocessisasfollows:Thewaterdemandincreases,thewaterpressureofthepipelinedownpressuresettingupandfeedbackdifferencevalue:TheoutputofthePIDinverteroutputfrequencyupupupflowwaterpumpmotorspeedupthepipewaterpressuretendstobestableElectricalcontrolprogramYourpumpmotorlistisasfollows:Theabovedatashowthatyourwatersupplysystemisasinglepumpwatersupplysystem,thedemandforwaterhasacertainchangeTheconstantpressurewatersupplycanberealizedbyadjustingtheoutputfrequencyoftheinverterbythewayof"onebyone":PIDchangefrequencyimplementWaterpumpElectricmachineryMPressurefeedbackPressuresettingTheelectricaldiagramoffrequencyconversionsystemisasfollows:energyconservationOpenspaceFedererThischangeFrequencyconverterElectricitysavingcityelectricityElectricCityOpenspacePIDMPowerSupplyAsshownabove,thecircuitofthemotorisequippedwith"citypower"and"powersaving"contactor,sothattherecanbe"self""Move"and"manual"twomodesofworkselection:manualmode,theinverterdoesnotwork,thewholesystemaccordingtotheoriginalModemanualstartstop,powerfrequencyoperationautomaticmode,themotordirectlybythefrequencyconverter,frequencyconversionoperationEnergysavingsystemfeaturesAinverterinterfaceforLEDdisplay,setparametersrichkeyboardlayoutissimpleandeasytooperateBinvertershaveovercurrent,overvoltage,overheating,andlackofequalnumberofelectronicprotectiondevices,andhaveafaultreportThealarmoutputfunctioncaneffectivelyprotectthenormaloperationofthewatersupplysystemCdedicateddigitalPIDregulatorforLEDdualdisplay,convenientparametersetting,easytomonitorDinstalledfrequencyconverter,pumpmotorwithsoftstartandfrequencycontrolfunction,caneffectivelyreducethesystemThemechanicalwear,whilereducingthepipelineburdenEhastwomodesof"manual"and"automatic",whichcanstillbefoundinthecaseoffrequencyconverterfailureContinuerunningaccordingtotheoriginalmodeofoperationFour,projectinvestmentandreturnanalysisAccordingtotheworkingconditionofyourcentralairconditioningsystem,itissuggestedthatourprojectusetheSeriesFrequencyConverterInverterfeatures:awiderangeofapplications,overloadcapacity,simpleoperation,convenientmaintenance,costeffectiveSerialnumberNameModelNumberUnitPrice(RMB:yuan)Total(RMB:yuan)RemarksOneFrequencyconverterDRSKWOneDariusTwoElectriccontrolcabinet**OneDariusThreeAirswitchCNAOneSchneiderFourContactorLCDTwoSchneiderFivePressuretransducer~mAOneShenzhenSixPIDcontrollerALOneShenzhenSevenElectricalaccessoriesWires,terminalsButton,indicatorlightEightInstallationandcommissioningfeeDariusTotalprojectinvestment(RMB:yuan)EngineeringreturnanalysisAccordingtoourpreviousengineeringtransformationexperience,theaveragemonthlyelectricitysavingrateis,andthemotorcapacityisKW,Youcandrawthefollowingtable:Engineeringmodification,motorcapacity(KW)AverageloadrateofmotorDailyrunningtimehoursRunningdayspermonthdaysTariffperhourZeropointeightzeroMonthlyrateofelectricitysavingisestimatedSavingelectricitybillspermonthxxxxx=(yuan)Annualelectricitysavingsx=(yuan)Five、DRSseriesfrequencyconverterparameterdebugging:ParametercodeFunctiondescriptionSettingvalueRemarksPStartupmodeexternalterminalcontrolPOutputupperlimitfrequencyHZPUpperrelativefrequencyHZPAccelerationtimeSPleaserefertoFactoryvaluePDecelerationtimeSPLoadtypefanandpumploadPcarrierfrequencyKHZPFaultrelayoutputfrequencyconverterfaultoutputPBuiltinPIDcontrolsinglepumpconstantpressurewatersupplyPPIDsetchannelsOnePPIDgivenvalueMPaPPIDfeedbackchannelterminalvoltageinputPProportionalgainFivePIntegraltimeconstantSixPDifferentialgainThreePRangeofremotepressuregauge,MPaPLowerlimitpressuresetting,MPaAccordingtorealityRequirementssettingPUpperlimitpressuresetting,MPaSix,aftersaleservice(ourcompanypromise),DRSseriesofwatersupplydedicatedinverterinstallationandcommissioningbyyourengineeringandtechnicalpersonneltocomplete,IcanProviderelevantinformationandtechnicalsupport,theinverterinoperationintheeventoffailure,ifthetelephoneguidancecannotberuledout,mycompanytechnicalpersonnelWillberushedtothesceneassoonaspossibleQualitycommitment:()ifthequalityproblemsoccurwithinthreemonthsaftertheinstallationoftheequipment,weshallberesponsiblefortheexchangeofequipment()inayear,iftheequipmentqualityproblems,ourcompanyisresponsibleforfreemaintenanceOurcompanyalsoprovidescustomersLifetimeservice,exceptforwarrantyperiod,onlyappropriatemaintenancecostsShenzhendiriseElectricTechnologyCo,LtdJanuary,

用户评价(0)

关闭

新课改视野下建构高中语文教学实验成果报告(32KB)

抱歉,积分不足下载失败,请稍后再试!

提示

试读已结束,如需要继续阅读或者下载,敬请购买!

文档小程序码

使用微信“扫一扫”扫码寻找文档

1

打开微信

2

扫描小程序码

3

发布寻找信息

4

等待寻找结果

我知道了
评分:

/14

Constant pressure water supply &#40;one by one&#41;(恒压供水&#40;一拖一&#41;)

VIP

在线
客服

免费
邮箱

爱问共享资料服务号

扫描关注领取更多福利