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:2002-01-08;:(1970-),,,,1:1001-2060(2002)05-0527-03W(,414002):W,,,,,:;W;:TK22916:B136215MWBabcock,(BMCR)1160t/hW,1:1,10%,13%:Car69123%,Aar17139%,Mt6175%,Vdaf10%,Qnet,ar25879kJ/kg;t1=1400,t2=1500,t31500,,4(ABCD),4(1234),4,,,,,2211200117,1,,,:/1520m,B1B2B3B4C3C4A1A2D3D4,15m3B1B2,/,,,19,2,7,,:1520m,B3B41m3,,2121999/200015555/5280h,,14746h,20008,9,15m,1220001999,,,2000(1),2000,,17(101)20029©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,119992000(%)1999361666313481930150200060138391621011201462000111111801575019701362000121111001595112601373311,,:(1),,,,,W,,(2),,,,(3),,15m,21m;,21m,,,,(4)(50%TM2CR),(30%TMCR),,,(5)2(1),,210/280/336/366MW6.9/77.5/8.28.7/8.58.9kPa312,,,,,,,,315%,2,,//122231350%30%(1),,,,,,,,,,(2)260%30%0%,2,22210MW366MW/%306003060/%911059110891101901879111131460%80%,8252002©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.,/,,,315,,R90=0155Vdaf,,,(),316,70%,,214m(),,,,317,,4,,,,,,,3%4%,:[1],,,1W[D].:,2001.[2].2362MW[R].:,20011()20017,,:;();;,:26H3M2AA(BPB);,;;,,,()9255:W©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.bine:thechangeofshaftsystemelevationandcracksinbladeshrouds.Theunderlyingcausesoftheabovefaultsarebrieflyanalyzedwithon2sitetreatmentmeasuresandproposalsforfurtherimprovementbeingpresented.AsinChinathereexistmanyunitsoftheabovemodel,theinformationprovidedbytheauthorsmayserveashelpfulreferencedataduringtheirmaintenanceandoverhaul.Keywords:steamturbine,maintenanceandoverhaul,faulttreatmentW=AnalysisoftheSlag2formationinaW2shapedFlameBoilerandMeasuresTakenforitsAlleviation[,]/YANGXiong2wen(HuanengYueyangPowerPlant,Yueyang,HunanProvince,China,PostCode:414002)//JournalofEngineeringforThermalEnergy&Power.-2002,17(5).-527529Seriouscasesofslag2formationmayoccurinW2shapedflameboilersowingtothechangeoftypesofcoalbeingfired.Takingintoaccountthespecificfeaturesoftheabove2citedboilerandbasedonarelevantcombustiontheoryandthetestresultsofoptimizedcombustiontheauthorshaveadjustedthecontrolparametersofboilercombustion,breakingawayfromcertaintraditionalideasprevalentinthefieldofboilercombustioncontrol.Suchanadjustmenthasbroughtaboutsomesatisfactoryresults.Keywords:slagformation,W2shapedflame,combustionSHW4.220.7/115/70SHW4.220.7/95/70=AnalysisofTechnicalCharacter2isticsandCost2effectivenessinConnectionwiththeModificationofModelSHW4.220.7/115/70BoilerintoaModelSHW4.220.7/95/70Boiler[,]/XUChuan2zhao,LIUFeng2ling,ZHAOBo2yu,etal(HarbinBoilerIn2spectionInstitute,Harbin,China,PostCode:150076)//JournalofEngineeringforThermalEnergy&Power.-2002,17(5).-530532InconnectionwiththemodificationofaModelSHW4.220.7/115/702AIIhot2waterboilerintoaModelSHW4.220.7/95/702AIIhot2waterboilerthetechnicalcharacteristicsandcost2effectivenessoftheboilersareanalyzed.Thishasbeenfollowedbytheadoptionofsomemeasuresaimedatthesavingofenergyandfinancialresourcesaswellastheenhance2mentofboilerthermalefficiency.Keywords:low2temperaturehot2waterboiler,hydrodynamics,thermodynamicperfor2mance,fluegasspeed=TheImprovementofaDustCollectingDeviceattheCoalDrop2pingPointofaPowerPlantCoal2transportBelt[,]/LUTai,SHAPeng,WANGGui2ling,etal(PowerEngi2neeringDepartment,NortheastElectricPowerInstitute,Jilin,China,PostCode:132012)//JournalofEngineeringforThermalEnergy&Power.-2002,17(5).-533535Analyzedarethemajorproblemscurrentlyexistinginadustcollectingdevicelocatedatthecoaldroppingpointofather2malpowerplantcoal2transportbelt.Severalmeasuresaimedattheenhancementofdustcollectingefficiencyareproposedalongwithadescriptionoftheiractualserviceeffectiveness.Keywords:coaltransportbelt,seal,dustremover,nega2tive2pressureairfan=AnAnalysisofOperatingFailuresofLarge2sizedReciprocatingBoil2erGratesandanExplorationofMeasuresforTheirElimination[,]/WANGYu(HarbinHongqiBoilerWorks,Harbin,China,PostCode:150080)//JournalofEngineeringforThermalEnergy&Power.-2002,17(5).-536538Withregardtotheoperatingfailuresoccurringinreciprocatingboilergratesofacapacityrangingfrom10t/hto65t/hananalysiswasperformedfromvariousaspects,suchasmaterialselectionandstructuraldesign,etc.Onthisbasissomemeasureswereproposedtoeliminatesuchfailures.Inaddition,anexploratorystudywasconductedtoreducetheweightofboilerpartsandcomponents.Keywords:reciprocatingboilergrate,failure,materialquality,design6452002©1995-2005TsinghuaTongfangOpticalDiscCo.,Ltd.Allrightsreserved.