1. Cov ntawv thov thiab kev siv tseem ceeb
X10CrWMoVNb9-2, feem ntau hu uaQib T/P91(Tubes / Pipes), yog siab - lub zog, 9% chromium martensitic steel. Nws thawj daim ntawv thov yog nyob rau hauv siab - kub thiab siab - ntu siab ntawm cov chaw tsim hluav taws xob niaj hnub thiab lwm lub zog tseem ceeb. Cov kev siv tseem ceeb muaj xws li:
Superheater thiab Reheater Tubes:Cov khoom no raug rau qhov kub tshaj plaws hauv lub boiler. T91's superior creep zog tso cai rau nws tiv taus cov kev xav tau no.
Main Steam thiab Kub Reheat Piping:Nws yog siv rau cov tuab- cov kav dej uas muaj cov kav dej uas nqa cov pa ntawm lub boiler mus rau lub turbine thiab rov qab mus rau lub reheater. Nws lub zog siab tso cai rau cov phab ntsa ntawm cov yeeb nkab nyias dua piv rau cov hlau qub, txo cov thermal kev nyuaj siab thiab cov nqi khoom siv.
Headers thiab Manifolds:T91 yog siv rau cov kav loj - txoj kab uas hla (headers) uas sau thiab faib cov chav dej / dej rau ntau lub tsev txhab nyiaj hauv lub boiler.
Petrochemical Kev Lag Luam:Nws kuj tseem tau teev tseg hauv qee qhov chaw ua haujlwm petrochemical uas yuav tsum tau muaj qhov kub thiab txias, xws li hauv hydrocrackers thiab reformer furnaces.
2. Qhov tseem ceeb thiab cov txiaj ntsig zoo
Kev txais yuav ntawm X10CrWMoVNb9-2 muaj cov txiaj ntsig zoo thiab kev lag luam ntawm cov hlau tsis tshua muaj hlau (xws li P22) thiab txawm tias dhau qee qib tshiab:
Zoo heev Creep Strength:Qhov no yog nws cov khoom tseem ceeb tshaj plaws. Nws tuaj yeem tiv taus kev ntxhov siab rau lub sijhawm ntev (tshaj 100,000 teev) ntawm qhov kub txog li 600-625 degree, tiv thaiv deformation thiab tsis ua haujlwm.
High Temperature Oxidation Resistance:9% chromium cov ntsiab lus tsim ib qho ruaj khov, tiv thaiv chromium oxide txheej ntawm qhov chaw, txo qis oxidation thiab scaling nyob rau hauv qhov chaw ib puag ncig.
Zoo Thermal Conductivity thiab Tsawg Thermal Expansion:Piv rau austenitic stainless hlau, T91 muaj cov thermal conductivity zoo dua, uas txo cov thermal qaug zog, thiab qis dua thermal expansion coefficient, uas txo cov thermal stress hauv tshuab.
Economic Efficiency:Nws lub zog siab tso cai rau kev tsim cov khoom siv nrogphab ntsa nyias. Qhov no txo cov khoom tonnage, txo cov khoom hnyav, ua kom yooj yim vuam thiab fabrication, thiab txhim kho kev pib yooj yim vim qis thermal stresses.
Zoo Microstructural Stability:Cov muaj pes tsawg leeg, uas suav nrog molybdenum, vanadium, niobium, thiab nitrogen, yog tsim los tswj nws lub zog microstructure rau lub sij hawm ntev hauv kev ntxhov siab ntawm qhov kub thiab txias.
3. Kev Txhim Kho Yav Tom Ntej
Txawm hais tias cov hlau zoo tshaj plaws (xws li P92 thiab P911) tau tsim, X10CrWMoVNb9-2 tseem tuav txoj haujlwm tseem ceeb thiab vam meej hauv lub ntiaj teb lub zog toj roob hauv pes:
Retrofit thiab Lub neej Extension ntawm cov nroj tsuag uas twb muaj lawm:Ib daim ntawv thov loj yog kev kho dua tshiab ntawm cov hluav taws xob qub. Hloov cov khoom uas twb muaj lawm nrog T91 tso cai rau kev hloov kho tshiab hauv kev cog qoob loo, kev tsim tawm, thiab kev ua haujlwm ntawm lub neej yam tsis muaj kev rov tsim dua tshiab.
Qhov sib npaug ntawm kev ua tau zoo thiab tus nqi-Kev ua tau zoo:Rau ntau daim ntawv thov kev khiav hauj lwm nyob ib ncig ntawm 600 degree, T91 muaj qhov ua tau zoo ntawm kev ua tau zoo, ua pov thawj ntev - lub sij hawm cia siab rau, thiab tus nqi. Nws feem ntau pheej yig dua cov qib tshiab, nyuaj dua thaum muab kev ua haujlwm tseem ceeb hla dhau ib txwm qis- alloy steels.
Ua kom pom tseeb hauv Kev Tsim Kho Kev Lag Luam:Raws li cov teb chaws uas xav tau lub zog loj zuj zus tuaj tsim tshiab, muaj txiaj ntsig zoo subcritical thiab supercritical fais fab nroj tsuag, T91 tseem yog cov ntaub ntawv tseem ceeb rau lawv qhov siab - qhov kub thiab txias vim nws cov saw hlau tsim thiab kev paub txog kev tsim khoom.
Lub luag haujlwm hauv Biomass thiab khib nyiab-rau-Cov nroj tsuag hluav taws xob:Cov nroj tsuag no feem ntau ua haujlwm ntawm qhov kub thiab txias heev vim yog cov roj muaj pes tsawg leeg. T91 kev sib xyaw ua ke ntawm lub zog thiab kev tiv thaiv corrosion ua rau nws yog ib tus neeg sib tw tsim nyog rau cov khoom tseem ceeb hauv cov tom ntej no -tsim hluav taws xob txuas ntxiv mus.
Hauv kev xaus,X10CrWMoVNb9-2 (T/P91)tsim nws tus kheej ua cov khoom siv hauv paus rau kev tsim hluav taws xob niaj hnub thermal. Nws cov khoom siab tshaj - qhov kub thiab txias muab qhov tseem ceeb ntawm kev ntseeg siab thiab cov txiaj ntsig kev lag luam, ua kom nws muaj feem cuam tshuam txuas ntxiv hauv kev txhawb nqa dav hlau uas twb muaj lawm thiab cov chaw tsim hluav taws xob tshiab, muaj txiaj ntsig thoob ntiaj teb.
