四角对冲切向燃烧在电站锅炉上的应用

:,,,1,2,2(1.,200030;2.,200245)[],,,,,,NOx[];;;NOx;;;;[]TK223.23[]B[]10023364(2003)03005304,,,2008t/h1025t/h420t/h,,8912400t/h141025t/h,1,,,,,,ABB/CE,,,2,,,,,,,,0,,,,,,21025t/h,1986,ABB/CE2003(3)px©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,[3],34,,3%,,,,[45],35,1025t/h,NOx600mg/m3,,,,,,2008t/h,1600MW,600MW,1025t/h,(1),,,93.5%(1),205MW,32%MCR,561.7,554,(SOFA),,NOx,252mg/m3[1],,,ABB/CE[2],,[1](2)1600MWpy2003(3)©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.12008t/h2000092720000928/MW603.8605.5/%30.2229.67/%5.358.06/kJkg-12464023930/%1.071.77/%1.032.51/147.8146.5/%5.1354.943/%0.0790.213/%93.6693.73NOx/mgm-326324022008t/h/()/MW/MPa//th-1/MPa//th-1-1760316.8153003.4153262060116.7053303.3953362960316.715395.73.30543591860316.9253583.93.32539200420t/h,,,,,,,(3)[6],,W,,3220001114/MW100125/%7.157.15/%25.2125.21/kJkg-12281022801/%10.028.05/%16.419.1/143.5148/%6.446.63/%4.453.75/%88.1188.7829400t/h[7],,92%,,,,8950408,,,697.5103kJ/(m3h),,22110MW,130MW,292400t/h,,42[8],,,,402,,40%4400t/h12/1616/541.92542.06/MPa10.5411.11/538.19541.83/MPa1.861.99/th-1305.95334.55/134.15135.42/226.26231.46/%1.5931.499/%91.591.5141025t/hUP,,5ZGM95,92.84%,NOx()535.61mg/m3,35%BMCR;575.7,2003(3)pz©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.572.9,5[9]514300MW240MW300MW240MWA/B/%16.6/18.87.31/3.91NOxA/B(O26%)/mgm-3719535.6/156.9147.8130.1126.5/kWh-12837.02587.62580.22446.0/kWh-12891.62205.72158.71877.3/kWh-15728.64793.34767.34323.4()/%90.8891.2792.9892.713,,,2008t/h1025t/h420t/h,,NOx,,,,,,,,,,,2008t/h,[][1],,.SG2008/17.5M901[R].2001.[2],.600MW[J].,1996,(1).[3].[J].,1987,(9).[4],.3[R].1997.[5],.[R].1999.[6],,.4125MW[J].,2000.[7].9[R].2000.[8].125MW[R].2001.[9].14[R].2001.[10]J.W.ZHANG.TheDevelopmentofConcentricFiringSys2tem(CFS)inLowSofteningTemperatureCoalfiredBoilersofa600MWUnit.ICOPE2001CSPEJSMEASMEInternationalConferenceonPowerEngineering,October811,2001Xian,China.(52),CFB,,CFB4CFB,CFB,,[][1],,.[J].,2001,21(4):13111314.[2].CFB[C].,2001.[3]AllistonMG,ProbstSG,WuS&EdvardssonCM.Experi2encewiththecombustionofalternatefuelsinaCFBpilotplant[R].Proc.FluidizedBedCombustion1995,2:745751.[4],,.[J].,1998,(6).[5].410t/h[J].,1998,(2).[6]BhatiaO,LantzD&Calson2ArabiM.Fuzzyappliedcon2troltechnologyapproachtomultifuelboilerperformance[J].ProcessControlNews,1996July:910.p{2003(3)©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.thesmokeemissionbeingbelowthestandardlimitspecifiedbythestate.PRACTICEOFCORRECTINGWATERWALLANDFURNACEBODYSKEWNESSFORBOILERNO.3INDAGANGPOWERPLANT,TIANJINMUNICIPALITYZHANGShu-ming(41)DeformationofthefurnacebodyhadoccurredonboilerNO.3intittlepowerplant,hence,measurementandcauseanalysisofsaiddeformationhavebeencarriedout,itiscon2sideredthatthebasicreasonofthefurnacebodydeformationisduetononuniformsettlementofboilerssteelframefoundation.Then,effectiveadjustmentofthesaidfoundationwasmadeduringthecourseofreplacingthesaidwaterwall.OPERATIONPERFORMANCEANALYSISANDMEASURESTAKENFORIMPROVINGSOOTBLOWERSONBOILERSNO.5AND6ATJINGYUANPOWERPLANTWANGGang(44)InapplicationofsootblowersonboilersNO.5and6atJingyuanPowerPlant,phenomenaofblowingdamageonwaterwallsandtube-burstingontheeconomizershaveoc2curredmanytimes.Throughanalysis,itisconsideredthattheIR-3Dtypesootblowerscanbecompletelystoppedunderconditionwithoutslaggingoccurredinthefurnace.Atthesametime,inordertocorrectlyusethelong-stemsootblowers,anoptimalblowingcycleshouldbeformulated,andoperationalmaintenanceandmanagementofthesootblowersmustbestrengthened.TESTANDRESEARCHONMEASURINGPARTICLESFLOWVELOCITYINTWO-PHASEFLOWBYUSINGOPTICALSIGNALCROSS-CORRELATIONMETHODYUANZhen-fuetal(47)Thesignalfluctuationofopticaltransmissionintensitymaybeoccurredwhenparticlesinthegas-solidtwo-phaseflowarepassingthroughthelight-beamoflasers,theparti2clesflowvelocitycanbeobtainedviacross-correlationcalculationaftersamplingtwosignalsofopticalfluctuationfromprobesallocatedatup-streamanddown-stream.Testshowsthattheanti-interferenceabilityofthesaidmeasuringtechniqueisstrong,theaccuracyofmeasurementcanmeettherequirementsinengineeringmeasurement.Hence,itissuitableformeasuringthevelocityofnon-sphericalandnon-transparentparticles.PRESENTSITUATIONOFBED-TEMPERATURECONTROLLINGFORCFBBOILERSANDIMPROVINGMEASURESTHEREOFWUShu-zhietal(51)Aninvestigationandstudyonthepresentsituationofbed-temperaturecontrollingforCFBboilershavebeenperformed.Itispointedoutthattheexistingcontrollingmodehastoosmalladjustableamplitude,canteffectivelyregulatingthebed-temperatureofCFBboilers.Throughstudyandanalysis,arecommendationofestablishingatwo-inputandtwo-outputmulti-variablecontrollingsystemhasbeenputforward,then,whilethedeviationofbed-temperatureiscomparativelysmall,onlythematchratioofprimaryandsecondaryairisadjusted;whilethesaiddeviationiscomparativelylarge,thecoal-feedingamountandairquantitycansimultaneouslybeadjusted.APPLICATIONOFFOURCORNEROPPOSEDTANGENTIALFIRINGONUTILITYBOILERSHEZhi-qiangetal(53)Fourcorneropposedfiring,asanewarrangementpatternfortangentialfiring,hasbeensuccessfullyusedonboilerswi