新型水煤浆气化喷嘴和气化炉的开发以及气化过程数值模拟

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1、浙江大学博士学位论文新型水煤浆气化喷嘴和气化炉的开发以及气化过程数值模拟姓名：于海龙申请学位级别：博士专业：工程热物理指导教师：岑可法;赵翔20041101浙江大学精L学位论义于海J宅AbstracIAbstractCoalwaterslurry(CWS)gasificationtechniqueisalwayshigillyrecognizedbyinternationalsocietyandourcourttryinrecentyears．njstechniqueisalwayslistedonsixth，seventh，eighthandninth

2、five—yearprojectCWStechniqueisdevelopedwellinChina．But，comparewiththedevelopedcountries，indesignandmanufactureofburner,manufactureofbigcapacityhighpressureCWSpump，structureconfigurationoftheburnerandthegustfief,thedevelopmentofnumericalsimulationsoftware，themanufactureoffumacefir

3、ebrick。thedesignofPDPsoftwareandothersides，ourtechniqueisnotperfect．Inaddition，becauseofthelimitationofthepatentofTexacoCWSgasificationtechnique，highpatentcostwillbepaidwhenintroducingit．So，developingourowngasificationtechniqueofdifferentrawmaterialisnecessary．Inthispaper,someres

4、earchworkwasdevelopedonaboveissueThreetunnelmulti．1evelinner-mixedCWSgasificationburnerwasdevelopedindependentlNandalotofexperimentsweredone．Atthesametime，theeffectofthestructuresizeofburneruponCWSatomizationwasstudied．Thestructuresizeoftheburnerwasconfirmedbyoptimizationtest，and

5、thebestatomizationeffectoftheburnerwasobtained．Theinfiuenceofthestructuresizeoftheburneronatomizationeffectwasconfirmed．Anewmulti-inletCWSgasifierwasdevelopedindependently．Theeffectofdifferentfumacesideburnerinletheightandangleuponflowfielddistributtonwasanalyzedbymeansofnumerica

6、lsimulation，anddifferentkindofflowfielddistributionandparticleconcentrationofgasificationfumacewasobtained．Consequently,thebestkindburnerandfumacestructurewasconfirmedFurthermore，coldtestofabovefactorsonflowfield，particleconcentrationdistribution，andpressuredistributionwasdone．Be

7、causethenumeficalsimulationisinagreementwiththetestresult，thefeasibilityofnumericalsimulationreplacingexperimentinvestigationwasconfirmed．ThenumedcaIsimulationongasificationprocessofindustrialfumaceisapplied，andindustrialfumacesitetestwasfinishedtoo．Theresultofnumericalsimulation

8、agreeswellwiththetestresult．Accordingly,