攀鋼發(fā)電廠410t-h鍋爐省煤器磨損原因分析及技術(shù)改造.pdf

1、重慶大學(xué)碩士學(xué)位論文攀鋼發(fā)電廠410th鍋爐省煤器磨損原因分析及技術(shù)改造姓名：明開春申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：動(dòng)力工程指導(dǎo)教師：何祖威熊啟林20061001重慶大學(xué)碩士學(xué)位論文英文摘要ABSTRACrGeneratingelectricityusingfirepowerisacontinuousandlong—termprocessAsoneofthemostimportantequipmentsofelectricitygenerato

2、rinapowerstation，thegoodperformanceoftheboileristhebasicforthewholeunit’SnormaloperationAndmostofthereasonsthatthegeneratorunitfailstofunctioncomefromtheboilerwhichworksunderthehightemperatureandhigh—pressureconditionThe

3、boilertheturbin，andelectricity—generatoralwaysfailtofunctionTheopportunitythattheboilerfailstoworkreaches60percentageorevenmoreAndespecially，explosionoftubesof(watertube，superheatereonomizerreheater)causes65percentageofa

4、llthefailtureDuetodust，erosionandabrasionexistinthefourkindsoftubesintheboileritislikelythatexplosionofthosetubesleadstoaccidentsAndithasbecomeamajorreasonthateffectstheboilerssafeoperationTherefore，it’Shelpfult0analyset

5、heboilersperformanceofsafetyandputupsomeefficientmeasurestopreventfromprobablemisfortuneInaddition，theruntimeoftheboilermaybeprolongedandtheefficiencymaybeadvancedbyanalysisaboutboiler’sperformanceAtpresent，becausetheequ

6、ipmentisrelativelyoutdated，thescale，erosionandabrasioninfurnacearestillseriousproblemsinsomesmallunitsunder200MWThispaperhasdisscussedtheproblemofabrasionintheeconomizerTaketheeconomizerinthe410t／hBoilerofPangangPowerPla

7、ntunitasanobject，severalmethodsofalleviatingabrasionintheoperationprocesshavebeenintroducedAndthecomparationamongthesemethodshasbeenmadeaswellCombiningwiththeoperationcharacteristicoftheeconomizerinPangangPowerPlant，ther

8、easonwhythereexistsabrasionintheeconomizerhasbeendeeplydiscussedAccordingtothemajorreasonthathasbeenfoundoutinthepapersomeefficientmeasureshavebeenputforwardInordertofinishthetechnicalreformingoftheeconomizerfinnedecnomi

9、ncrhasbeenusedThecheckoutofthereformedeconomizersperformancehasbeenmade，andtheperformanceofthereformedeconomizerhasalsobeencomparedwiththeformeroneinrepectsofheatexchange，antiabrasionanderosionTheresultisthatwhenthenumbe

10、roftubesintheeconomizerincreasesevenifthereisalittleincreaseinthetheconvectionareatheheattransferperformancecanbeimprovedobviouslyandtheabrasionwillbealleviated；theerosionwillbeless，theratioofthequalifiedsteamcanreach100