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接触式柔性密封在300MW机组空气预热器中的应用.docx

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接触式柔性密封在300MW机组空气预热器中的应用 Title:ApplicationofContact-typeFlexibleSealingintheAirPreheaterofa300MWPowerPlant Abstract: Theairpreheaterplaysacrucialroleinimprovingthethermalefficiencyofapowerplantbyutilizingwasteheatfromfluegasestopreheattheincomingcombustionair.Thesealingperformanceoftheairpreheaterisvitalforefficientoperation,asitaffectsnotonlytheheattransferefficiencybutalsotheoperationalreliabilityoftheentirepowerplant.Thispaperexplorestheapplicationofcontact-typeflexiblesealingintheairpreheaterofa300MWpowerplant,analyzingitsbenefits,challenges,andpotentialsolutions. 1.Introduction -Brieflyintroducetheimportanceofairpreheatersandtheirroleinpowerplantoperations. -Highlightthesignificanceofsealinginairpreheatersandtheimpactonthermalefficiencyandoperationalreliability. 2.TraditionalSealingSystems -Discussthedrawbacksoftraditionalsealingsystemsusedinairpreheaters,suchasinadequatesealingperformance,increasedairleakage,andreducedheattransferefficiency. -Addressthechallengesfacedinmaintainingandreplacingthesetraditionalsealingsystems. 3.Contact-typeFlexibleSealing -Explaintheconceptandworkingprincipleofcontact-typeflexiblesealing. -Highlighttheadvantagesofcontact-typeflexiblesealinginairpreheaters,includingimprovedsealingperformance,reducedairleakage,enhancedheattransferefficiency,andextendedoperationallife. 4.ChallengesandPotentialSolutions -Discussthechallengesandlimitationsassociatedwiththeapplicationofcontact-typeflexiblesealinginairpreheaters,suchashighoperatingtemperatures,abrasiveparticulatematter,andcorrosivefluegases. -Presentpotentialsolutionstoaddressthesechallenges,suchastheuseofhigh-temperaturematerials,surfacetreatmenttechnologies,andregularmaintenancepractices. 5.CaseStudies -Providereal-lifecasestudiesandsuccessstoriesofpowerplantsthathaveimplementedcontact-typeflexiblesealingintheirairpreheaters. -Presentdataontheoperationalandeconomicbenefitsachievedthroughtheadoptionofcontact-typeflexiblesealing. 6.ComparativeAnalysis -Comparetheperformanceofcontact-typ