燃低灰熔點煤電站鍋爐爐膛結焦診斷與改造研究.pdf

1、申請上海交通大學工程碩士學位論文申請上海交通大學工程碩士學位論文燃低灰熔點煤電站鍋爐爐膛結焦診斷與改造研究燃低灰熔點煤電站鍋爐爐膛結焦診斷與改造研究SLAGANYLYSISRENOVATIONINTHEFURNACEWITHTHELOWASHFUSIONPOINTCOAL學校：上海交通大學校：上海交通大學院系：機械與動力工程學院系：機械與動力工程學院工程領域：動力工程工程領域：動力工程交大導師：繆正清交大導師：繆正清企業(yè)導師：卞志華企業(yè)

2、導師：卞志華工程碩士：曾雪峰工程碩士：曾雪峰學號：1040222005學號：1040222005上海交通大學機械與動力工程學院上海交通大學機械與動力工程學院2007年5月SLAGANYLYSISRENOVATIONINTHEFURNACEWITHTHELOWASHFUSIONPOINTCOALABSTRACTBasedontheHG44013.7YM14135MWboilerintheYinhepowerplant(YulinShanx

3、i)whichisextrahighpressurenaturalcirculationdryslaggingonethedissertationfixesthejetsfromthecnerfiredboilerontheburningganizingburningoptimizationcontrollingthethermaldeviation.Accdingtothedifferentkindofjetscompoundmode

4、fromtheburnerthedissertationstartsthetestnumericalsimulationanalysisgainsthereconstructedplanintherealboiler.InadditionthefieldtestshavebeendonetheCFDsoftwarehasbeenusetosimulateonthejetstrackinthefurnacebefeafterreconst

5、ruction.Accdingtothetestdatathestructurealternationhasanobviouseffectontheslagreducingontheburnerwaterwallovertheburner.Thisresearchoffersakindofjetscompoundmodeintheburnertotheengineering.Astotheusingboilerawaytoprevent

6、slagonthewaterwallaroundtheburnerisalteringtheaerodynamicsinthefurnace.Allkindsofmethodshavebeenusedtolowthetemperatureinthewaterwallneartheburnertopreventtheprimaryairattackingthewallwhenthewaterwallhasnotbeenchangedpos

7、sibly.Combinedthepracticalconditionoftheboilerinthepowerplantthefiredcoalacteraccdingtochangingtheburners’structurethefurnacehasnotshutdownburningbehavihasbeenimprovedcombustionefficiencyhasbeenincreased.Theresearchhasga