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1、普传变频器在中央空调水泵中节能方案（Energysavingschemeofuniversalfrequencyconverterincentralairconditioningwaterpump）First,thecentralairconditioningoperationcontrolmethodanalysisThedesignofcentralairconditioningsystemisbasedontheoutdoormeteorologicalparametersandindoorairconditioning
2、designparameterstocalculatethecoldload.Accordingtothecharacteristicsofthepartitionstructure,accordingtotheproductsampletochoosetheappropriateequipment,combinedintoasystem.Butmostoftheairconditioningsystemisworkingundertheconditionofdissatisfactionload.Thesystemenerg
3、yefficiencyratiowillbegreatlyreducedwhenthecontrolmodeofthedissatisfiedworkloadisunreasonable.Nowtheairconditioningsysteminoperationregulation,watersystemismainlyvalves(manual,automaticregulatingvalve),thehostusesunloadingmode,whichisattheexpenseofenergyconsumptiont
4、omeettherequirementsofterminalloadresistance,resultinginhighcostofrunning.Iftheuseofvariablefrequencycontrol,energytransferandtransportationcontrolforvariablewatervolume(VWV)andvariableairvolume(VAV),andthetransferandtransportcoupledwithoptimaltemperaturereplacement
5、,itspowerisonly30~60%andothercontrolsystem,energysavingisadoubleeffect,becauseofthedemandofenergyconsumptionofrefrigerationandfalling.Thehostusingtheenergysavingcontrolfrequency,keepthephysicalamountofrefrigerantmovementunderdesignconditions(suchasthetemperature,pre
6、ssurechanges,etc.)thanotherenergyloadregulationisobvious,suchasG(YORK)typeYTcentrifugalchillers,frequencyconversionunitunderpartialloadenergyefficiencycanbereducedto0.2kw/tonsofcold,visibleandvariablefrequencycontrolintheairconditioningsystemhasverybroadapplicationp
7、rospects.Inthepast,duetothepricereasons,itisdifficulttopopularizethefrequencyconversiontechnologyinthecentralairconditioningsystem.Inthefrequencyconversiontechnology,computerautomaticcontroltechnologyisverymaturetoday,withthecombinationoftechnologyandthetechnologyof
8、HVAC,itisnotahightechnology,inthesmallpowerairconditioningintheeconomycanbear,butshouldnotbeaprobleminthecentralair-conditioningsystem:(1)
