第1页共189页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第1页共189页电力英语技术术语一、锅炉部分1．超临界压力锅炉supercriticalpressureboiler2.亚临界压力锅炉subcriticalpressureboiler3.超高压锅炉super-highpressureboiler4.蒸汽锅炉steamboiler/Aclosedtankinwhichwaterisconvertedintosteamunderpressure.5.蒸汽发生器steamgenerator/Aclosedtankinwhichwaterisconvertedintosteamunderpressure.6.液态排渣锅炉wetbottomboiler/Awet-bottomfurnaceorwet-bottomboilerisboilerthatcontainsawetbottomfurnace.Itisakindofboilerusedforpulverisedfuelfiring.Inwetbottomboilerthebottomashiskeptinamoltenstateandtappedoffasaliquid.Wetbottomboilerslagisatermthatdescribesthemoltenconditionoftheashasitisdrawnfromthebottomoftheslag-taporcyclonefurnaces.Anadvantageisthefactthattheendproductinthisprocesshasahighervaluecomparedtothatofadrybottomboiler.Wetbottomboilersarepreferredforlowvolatilecoalsthatproducealotofash.Butithashigherinvestmentcostsandhighermaintenancecosts,soitisbuiltlessoften.7.固态排渣锅炉drybottomboiler8.燃煤锅炉coal-firedboiler9.燃气锅炉Gas-firedboiler10.燃油锅炉oil-firedboiler11.自然循环锅炉naturalcirculationboiler/Inanaturalcirculationboilerthecirculationisachievedbythedifferenceindensitywhenthewaterintheboilerisheated.12.汽包（锅筒）锅炉drumboiler13.强制循环锅炉controlledcirculationboiler14.直流锅炉once-throughboiler/Aboilerinwhichwaterflows,withoutrecirculation,sequentiallythroughtheeconomizer,furnacewall,andevaporatingandsuperheatingtubes.15.复合循环锅炉combinedcirculationboiler16.旋风炉cyclonefurnaceboiler/Awater-cooledhorizontalcylinderinwhichfuel(coal,gas,oroil)isfiredandheatisreleasedatextremelyhighrates.Whenfiringcoal,thecrushedcoalisintroducedtangentiallyintotheburneratthefrontendofthecyclone(seeillustration).About15%ofthecombustionairisusedasprimaryandtertiaryairtoimpartawhirlingmotiontotheparticlesofcoal.Thewhirling,orcentrifugal,actiononthefuelisfurtherincreasedbythetangentialadmissionofhigh-velocitysecondaryairintothecyclone.第2页共189页第1页共189页编号：时间：2021年x月x日书山有路勤为径，学海无涯苦作舟页码：第2页共189页Schematicdiagramofcyclonefurnace.(FromT.Baumeister,ed.,StandardHandbookforMechanicalEngineers,8thed.,McGraw-Hill,1978)Theproductsofcombustionaredischargedthroughawater-cooledreentrantthroatattherearofthecycloneintotheboilerfurnace.Essentially,thefundamentaldifferencebetweencyclonefurnacesandpulverizedcoal–firedfurnacesisthemannerinwhichcombustiontakesplace.Inpulverizedcoal–firedfurnaces,particlesofcoalmovealongwiththegasstream;consequently,relativelylargefurnacesarerequiredtocompletethecombustionofthesuspendedfuel.Withcyclonicfiring,thecoalisheldinthecycloneandtheairispassedoverthefuel.Thus,largequantitiesoffuelcanbefiredandcombustioncompletedinarelativelysmallvolume,andtheboilerfurnaceisusedtocooltheproductsofcombustion.SeealsoBoiler;Steam-generatingfurnace;Steam-generatingunit.17.沸腾炉fluidizedbedcombustion(FBC)boiler/Fluidizedbedcombustion(FBC)isacombustiontechnologyusedinpowerplants.FBCplantsaremoreflexiblethanconventionalplantsinthattheycanbefiredoncoalandbiomass,amongotherfuels.Fluidizedbedssuspendsolidfuelsonupward-blowingjetsofairduringthecombustionprocess.Theresultisaturbulentmixingofgasandsolids.Thetumblingaction,muchlikeabubblingfluid,providesmoreeffectivechemicalreactionsandheattransfer.Combustionsystemsforsolidfuels第3页共189页第2页共...
