基于熵产分析及数值模拟的锅炉优化吹灰的研究

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1、华北电力大学（保定）博士学位论文基于熵产分析及数值模拟的锅炉优化吹灰的研究姓名：朱予东申请学位级别：博士专业：热能工程指导教师：阎维平20080301华些皇垄奎堂堕主堂垡迨奎——AbstractF0rcoal．6川utilityboiler,slaggingandashfoulingonheatingsurfaces撇u8uallyiIlevi协ble．HeavyslaggingandashfoulingCanbeavoidedbysootblowingd眦19恤operation．Pre洲y，sootblowixtgsystemsofdomesticutili

2、tyboilersaremostlyope粕ted0nfixeds00tblo埘ngperiod．However,insufficientortoomuchsootblowing蜘呦tlyo剃rundert11ismode．nerefbfe，duringboilerrunning，thestateanddevelopingtrendofslaggingaIldaLshfoulingshouldbemoIlitofedasaccuratelyaspossible，andthesootblowersh砌dbeoperatedaccordingtothemonitor

3、ingresultsandoperationdemandtomakesurctheaSh锄dslaggingcanberemovedeffectivelyandintime·IIlthisthesis，systematicallytheoreticandexperimentalstudieshavebeenc踟edout0nfollo“ngproblems：theinfluenceoffumaceslaggingonsteamparameters，oIdlnemomtonng0fmmaCeslagging，oIllinemonitoringofconvectiv

4、eheatingsurfacefoulingmaderdi岱鹏nt10ads．irreverSibleenergylossofconvectiveheatingsurfaces，theestablishmentofsootblowingopt妇izationmodel，thedeterminationofsootblowingmodes，andthedcvclopment锄dapplicationofsootblowingoptimizationsystem·Fina{ly,thesy舳嗍putintoprac_ticeonseverallargeutil时bo

5、ilers．Themaincontentsare嬲士-0llo、釉g：1。Snldyoffurnaceslaggingmonitoringbasedonnumericals姗山撒0n1)N啪商cal洲ationSofslaggingOnfurtlacewerecarriedout，thetluegastempe豫_turedistributionsoffurnaceoutletunderdifferentslaggingconditio璐andslag粤ngdistributionsonthewaterwallofdifferentboilersweredete

6、rmined·TheoutletSte锄conditionSofplatensuperheaterweregotbythermalcalculation，theinfluenceofthe胁[1aCeslaggingconditionsandslaggingdistributionsonthewaterwall011theavailabIe妣amparametersofplatensuperheaterwas绷1yzed．一．2)BaSedonsimulationresults，fuzzymodediagnosetechnologywasused，andthe啬

7、agnosemodeloffurnaceslaggingconditionswasestablished，onlir呛slaggingcondl‘10nSmonitoringanddiagnoseofslaggingdistributionsonthewaterwall、verereaJlzea·2．Studyandrealizationofconvectiveheatingsurfacefoulingmonitoring吼derditlerentloads．．．InordertodecreaSethedifferencebetweenmonitoringres

8、ultofstaticm