四角布置切向燃烧锅炉炉内结渣原因分析及防止对策

,,:,,,,,:;,,,,,,,;,,,,1111,,5(Qui5)5Xi=55Xi#55X55Xi+S5+SP5,5m(u,v,w)hf;S5;SP5L=CLQk2öE+L1,:1996205220CL=0.09,,112,(),,,mpdupiödt=(1ö2)CDQ(uqi+ui-upi)2+mpgi,uqiui,upi113,,,:É()(1-Y1)()+Y1()Ê()(1-Y2)()+Y2(),ÉÊ,,Y1,Y22Y1,K1K2Arrheniusk=Aexp(-Eö125Vol.12No.5199610POWERSYSTEMENGINEERINGOct.1996©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.RTP),KdKc,dmpödt=-PktQpd2pxO2kt=1ö(1ökd+1ökc)Arrheniuskc=A0exp(-E0öRTp),A0E0114,,(DiscreteTransferMethod),DT,,DT,,,,,dIdS=-(Ka+Ks)I+KaEgP+Ks4P4PP(8,8)I(8)d8Q,I8,S8,Eg=RT4gTg,KaKs,P(8,8)88d82,,,([3]3)(),[3](2)(3)211,[3],1,,;1,,1,,,,110.570.76-0.9()0.690.741.350.75-1.79()0.810.8821221211(25,=1.79),,;,,,,,,,,1(K=14)()2,345:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,,,,,34K=49()X=4.00m,21212(=0.9),20,20,,1179019,[3],,,5,,,6K=14,,,78,21213(m=1.79)1455123213341438,(m=0.9)1339115113141301[3],(),,213,,,,,,3K=494X=4.00m44199612©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.7K=498X=4.00m,,2,,,;,,,,,,2()%6.853.973(1)1,,,(018112),,,(2)11NOx1,1991(10)21,1988(2)3,,1(CFS)1,1996,12(4):,,1972,(,430074):545:©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.erectionoperationpp.3035AOptimalDesignForAxleCycloneVanesofCycloneBurnerMaChunyanetc.Inthispaperfirstanalysesdesigncalculationforaxlecurvedvane2typecyclonebreather,thenmodifiessomeofthecalculationforthevaneshapeandopti2mizesthedesignparametersforthevaneshapeandgivesabriefdesigncalculation.Keywords:burnercyclonevaneoptimaldesignpp.3641ReasonsandPreventionofProblemsonSlaggingofBoilerswithTangentialCircleDirectionofAirFlowHuTailaietc.Thisreporthasonepulverizedcoalboilerinaplantasanexample,andcarriesoncoldandhotstateexperimentalresearchwhileopposingtangentialcircledirectionofprimaryairflowandsecondaryairflow,comparingwithnumericalsimulation.Theresultsoftheexperimentsandthesimulationshowthatwhenprimaryairflowandsecondaryairflowenteraboilerwithsamedegree,adjustingreasonablythedirectionofprimaryandsecondaryairflowandadoptingaap2propriatenumberofairflowmomentumtorguedevid2edbyprimaryairflowmomentumtorgue,wecangetabetterflowfieldinaboiler,andmodulatepulverizedcoalairflowclosetowaterwalls,andpreventfromslagginginaboiler.Keywords:combustionmomentumtorgueslag2gingnumericalsimulationpp.4245TestMethodanditsApplicationofFrictionalPropertiesofLooseCoalWangYunmeietc.Thefrictionalpropertiesofloosecoalweretestandresearched,shearstrengthcoefficientandexternalfrictionalpropertieswhichmaycharacterizecakingpropertywereputforwardinthepaper.Keywords:loosecoalfricationalpropertyshearstrengthpp.4649NOxFormationandControlTechnologyintheCombustionProcessZhaoLiminetc.Inthepaper,mechanismofNOxformationandcontrolwayhadbeenanalyzed,andsometechniquesofcontrollingNOxformationwerepresentedbriefly.Keywords:boilercombustionNOxcontrolpp.5052FiniteTimeThermodynamicPerformanceBoundforQuantumCarnotEngineatMaximumPointJinXiaochangetc.ThispaperstudiestheoptimumperformanceofaquantumCarnotenginewithpoweroutputincoopera2tionwithentropyproductionrate.Theoptimalperfor2manceparametersofaquantumengineatamaximumpointoftheobjectivefunctionEareobtained.Keywords:harmonicoscillatorquantumengineobjectivefunctionEquantumstatisticalmechanicspp.5355CombinedControlofLevelsbetweenCondensatorsandDeaeratorsincombined-CyclePowerPlantsLiuHongetc.Aspeakloadunits,thecombined2Cyclepowerplantswerenotedforfrequentloadvariationandfluc2tationfeedwaterflow.TakingkotriandFaisalabadpowerplants(Pakistan)asexamples,acombinedcon2trolmethod2coordinatedcontrol,whichcouldimprovetheresponsibilitytocondensatoranddeaeratorlevelregulationandtoitsstabilitywasintroduced.Keywords:condensatordeaeratorcoordinatedcontrolVregulationdatapointspp.5659MeasurementofErosionProcessofImmersedTubesinFluidizedBedMaZhengyietc.Inthepaper,usingfilmresistor,anewmethodsimulatingtheimmersedtubeserosionprocessinflu2idizedbedsisdeveloped.Theexperimentshowsthatweightlosingrateoftheimmersedtubesvarieswiththeerosionprocessandthecircumferencesofthetubes,themaximumweightlosingrateoccursinabout40regiontothebottomofthetubes.Keywords:fluidizedbedimmersedtubeserosionprocesspp.606246199612©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.