1. Daim Ntawv Thov Tseem Ceeb: Superheater thiab Reheater Tubes hauv Ultra-Supercritical (USC) Boilers
07Cr25Ni21NbN, kev lag luam hu uaSuper 304 H, yog cov qib siab austenitic stainless hlau tshwj xeeb tsim los rau qhov kub siab tshaj plaws ntawm cov thee- hluav taws xob fais fab nroj tsuag. Nws lub hauv paus thiab tseem ceeb tshaj plaws daim ntawv thov yog nyob rau hauv kev tsim ntawm:
Thaum kawg Theem Superheater Tubes
Thaum kawg Theem Reheater Tubes
Hauv Ultra-Supercritical (USC) boiler, chav kub tuaj yeem ncav cuag600℃rau 625 degree. Ntawm qhov kub thiab txias siab, cov pa hlau tsis muaj lub zog tsim nyog thiab kev tiv thaiv corrosion. Super304H tau xa tawm ncaj qha rau hauv cov ntu no qhov twg cov chav nyob ntawm nws qhov kub tshaj plaws, ua rau lub boiler ua haujlwm zoo thiab ua haujlwm zoo.
2. Qhov tseem ceeb thiab cov txiaj ntsig zoo
Kev siv dav dav ntawm Super304H yog tsav los ntawm nws cov khoom sib xyaw zoo tshaj plaws:
Exceptional High -Temperature Strength (Creep Strength):Los ntawm cov txheej txheem txhawb zog uas muaj peev xwm cuam tshuam nrog nag lossis daus ntawm nano- loj Cu- nplua nuj hais, Nb(CN), thiab M23C6 carbides, Super304H ua tiav lub zog creep rupture kwv yees li 30% siab dua li cov pa TP304H thiab TP347H steels. Qhov no tso cai rau kev tsim cov thinner- cov phab ntsa phab ntsa, uas txhim kho cov cua sov hloov thiab txo cov thermal stress.
Superior Anti-Steam Oxidation Resistance:It forms a dense, adherent, and protective chromium oxide (Cr2O3) scale on its inner surface, which significantly slows down further oxidation when exposed to high-temperature steam. Qhov no txuas lub raj lub neej kev pab cuam thiab tiv thaiv kom tsis txhob muaj qhov sib txawv ntawm oxide nplai, uas tuaj yeem ua rau yaig nyob rau hauv nqes dej turbine hniav.
Zoo heev Structural Stability:Cov hlau tuav nws cov microstructural stability nyob rau lub sij hawm ntev (tshaj 100,000 teev) nyob rau hauv kev ntxhov siab ntawm qhov kub thiab txias, kom ntseeg tau tias kev ua tau zoo ib yam thoob plaws hauv cov nroj tsuag tsim lub neej.
Zoo Fabricability thiab Weldability:Nws muaj qhov txaus siab weldability thiab formability, tso cai rau kev tsim kho thiab kho cov khoom siv boiler complex.
Tus nqi -Kev ua tau zoo:Txawm tias kim dua li cov qauv austenitic steels, nws lub zog siab tso cai rau kev txuag qhov hnyav. Tsis tas li ntawd, nws muaj kev daws teeb meem ntau dua piv rau nickel-raws li superalloys, muab qhov zoo tshaj plaws ntawm kev ua tau zoo thiab tus nqi rau nws lub hom phiaj kub.
3. Kev Txhim Kho Kev Zeem Muag thiab yav tom ntej Outlook
Lub zeem muag yav tom ntej rau 07Cr25Ni21NbN (Super304H) tseem muaj zog thiab muaj kev sib txuas nrog rau lub ntiaj teb lub zog tiam sis:
Hloov mus rau High-Cov Hluav Taws Xob Hluav Taws Xob:Raws li lub ntiaj teb hloov mus rau lub zog tauj dua tshiab, muaj ib qho kev xav tau rau cov thee hloov tau yooj yim thiab muaj txiaj ntsig zoo - hluav taws xob hluav taws xob los muab cov phiaj xwm ruaj khov. Ultra-Supercritical (USC) thev naus laus zis, uas tso siab rau cov ntaub ntawv zoo li Super304H, yog qhov tseem ceeb rau kev txo qis CO2 emissions rau ib chav tsev ntawm hluav taws xob tsim piv rau cov laus, cov nroj tsuag tsis muaj zog.
Cov pob txha ntawm cov uas muaj thiab tshiab USC cog:Super304H tau dhau los ua tus qauv, zoo- nkag siab cov ntaub ntawv rau 600-620℃chav ntsuas kub. Nws tseem yuav yog cov khoom ntawm kev xaiv rau ntau tus uas twb muaj lawm thiab tshiab-tsim USC fais fab nroj tsuag thoob ntiaj teb, kom ntseeg tau qhov kev thov tsis tu ncua rau ntau xyoo rau ob qho tib si tshiab thiab tu.
Synergy nrog Advanced-Ultra-Supercritical (A-USC) Kev Tshawb Fawb:Thaum tom ntej no - tiam A-USC cov nroj tsuag tsom rau chav kub siab tshaj 700℃, uas yuav xav tau npib tsib xee-raws li alloys, kev txhim kho thiab ua tiav daim ntawv thov ntawm Super304H tau muab cov kev paub tseem ceeb hauv kev tsim khoom, vuam, thiab kev ua haujlwm nrog cov khoom siv kub siab tshaj -. Nws sawv cev rau ib qho tseem ceeb evolutionary kauj ruam nyob rau hauv fais fab nroj tsuag technology.
Lub neej Extension ntawm Cov Hluav Taws Xob uas twb muaj lawm:Rau USC cov chav uas twb muaj nyob rau hauv kev soj ntsuam lub neej thiab cov kev pab cuam txuas ntxiv, Super304H yuav yog cov khoom siv hloov pauv tseem ceeb rau cov khoom siv hluav taws xob tseem ceeb thiab cov khoom siv rov ua dua tshiab, kom ntseeg tau tias lawv muaj kev nyab xeeb thiab ua haujlwm tau zoo.
Hauv kev xaus,07Cr25Ni21NbN (Super 304H)tsis yog tsuas yog cov khoom siv xwb tab sis yog ib qho cuab yeej siv rau kev tsim hluav taws xob huv si. Nws cov khoom tshwj xeeb ua rau nws tseem ceeb rau qhov siab - cov khoom siv hluav taws xob ua tau zoo ntawm hnub no thiab yav tom ntej, ua kom nws lub luag haujlwm ua lub hauv paus tseem ceeb hauv lub ntiaj teb lub zog toj roob hauv pes.
