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1、外文出处：A.A.Shatil’,N.S.K.A.A.S.,&V.Kudryavtsev,A.(2008).Controllingthefurnaceprocessincoal-firedboilers.ThermalEngineering,55,1,72-77. ControllingtheFurnaceProcessinCoal-FiredBoilersTheunstabletrendsthatexistinthemarketoffuelsuppliedtothermalpowerplantsandthesituations
2、inwhichtheparametersoftheiroperationneedtobechanged(orpreserved),aswellasthetendencytowardtheeconomicalandenvironmentalrequirementsplacedonthembecomingmorestringent,arefactorsthatmaketheproblemofcontrollingthecombustionandheattransferprocessesinfurnacedevicesveryurge
3、nt.Thesolutiontothisproblemhastwoaspects.Thefirstinvolvesdevelopmentofacombustiontechnologyand,accordingly,thedesignofafurnacedevicewhennewinstallationsaredesigned.Thesecondinvolvesmodernizationofalreadyexistingequipment.Inbothcases,thetechnicalsolutionsbeingadoptedm
4、ustbeproperlysubstantiatedwiththeuseofbothexperimentalandcalculationstudies.TheexperienceCentralBoiler-TurbineInstituteResearchandProductionAssociation(TsKTI)andZiOspecialistsgainedfromoperationofboilersandexperimentalinvestigationstheycarriedoutonmodelsallowedthemto
5、proposeseveralnewdesignsofmultifuelandmaneuverable—inotherwords,controllable—furnacedevicesthathadbeenputinoperationatpowerstationsforseveralyears.Alongwiththis,anapproximatezero-one-dimensional,zonewisecalculationmodelofthefurnaceprocessinboilershadbeendevelopedatth
6、eTsKTI,whichallowedTsKTIspecialiststocarryoutengineeringcalculationsofthemainparametersofthisprocessandcalculatestudiesoffurnacesemployingdifferenttechnologiesoffiringandcombustionmodes.Naturally,furnaceprocessadjustmentmethodslikechangingtheairexcessfactor,stackgasr
7、ecirculationfraction,anddistributionoffuelandairamongthetiersofburners,aswellasotheroperationswrittenintheboileroperationalchart,areusedduringboileroperation.However,theeffecttheyhaveontheprocessislimitedinnature.Ontheotherhand,controlofthefurnaceprocessinaboilerimpl
8、iesthepossibilityofmakingsubstantialchangesintheconditionsunderwhichthecombustionandheattransferproceedinordertoconsiderablyexpandt
