Txheej txheem cej luam
SIB-192yog tus qauv specification los ntawm lubAmerican Society for Testing thiab Materials (ASTM)rauseamless carbon steel boiler raj rau siab - kev pabcuam siab. Nws yog ib qho ntawm cov khoom siv feem ntau siv rau boiler thiab superheater raj hauv lub tshuab hluav taws xob tsim hluav taws xob, kev lag luam boilers, thiab cov ntawv siv zoo sib xws.
Cov yam ntxwv tseem ceeb ntawm SA-192 raj yog lawv txoj kev ntseeg siab ntawm qhov kub thiab txias. Lawv tau tsim los kom muaj dej, chav dej, lossis lwm yam kua dej nyob rau hauv qhov mob hnyav.
Ntsiab Specifications & Properties
| Feature | Kev piav qhia |
|---|---|
| Txuj | ASTM A192 / ASME SA-192 (Lub "S" txhais tau tias nws tau txais los ntawm ASME rau boiler code siv). |
| Hom | Seamless (Yuav tsum tau). Qhov no ua kom muaj kev sib haum xeeb thiab lub zog nyob rau hauv siab. |
| Kev tsim khoom | Feem ntau ua los ntawm kev tho kub thiab kub dov, ces txias daim duab kom ua tiav qhov ntev thiab qhov chaw tiav. |
| Qib | Carbon Steel. |
| Cov ntsiab lus tseem ceeb | Cov pa roj carbon tsawg (feem ntau 0.06-0.18%), Manganese (0.27-0.63%), Silicon (min{2}}%). Nws muaj kev txwv nruj ntawm Sulfur thiab Phosphorus kom ntseeg tau tias weldability thiab toughness. |
Mechanical Properties
Tensile zog:325 MPa (47,000 psi) yam tsawg kawg nkaus
Yield zog:180 MPa (26,000 psi) yam tsawg kawg nkaus
Elongation:Nws txawv nrog phab ntsa tuab, tab sis qhov tsawg kawg nkaus ntawm 35% yog feem ntau rau cov phab ntsa nyias, kom ntseeg tau zoo ductility.
Cov Loj Loj (NPS - Nominal Pipe Size)
Sab nraud txoj kab uas hla (OD):Qhov ntau ntawm 1/2 nti (12.7 mm) mus rau 7 nti (177.8 mm), tab sis feem ntau yog siv rau qhov ntau thiab tsawg los ntawm1 "rau 4".
Phab ntsa Thickness:Txhais los ntawm cov sijhawm teem sijhawm (xws li Sch 40, Sch 80) lossis ib qho tshwj xeeb Cov Phab Ntsa Thickness (MWT). Cov phab ntsa rau cov boilers yog nyob rau sab thinner (piv txwv li, Sch 40 los yog sib dua).
Vim li cas SA-192 siv rau Boilers?
Siab -Tsub Muaj Zog:Nws tuav nws cov qauv kev ncaj ncees ntawm qhov saturated chav kub nyob rau hauv boiler systems (feem ntau mus txog ~ 450℃/ 850℃F).
Zoo heev thermal conductivity:Cov pa roj carbon zoo hloov hluav taws xob los ntawm cov pa hluav taws xob sab nraud ntawm lub raj mus rau hauv dej, uas yog qhov tseem ceeb rau kev ua haujlwm ntawm boiler.
Zoo Weldability thiab Formability:Cov ntsiab lus ntawm cov pa roj carbon tsawg ua rau nws yooj yim rau vuam thiab khoov rau hauv cov duab uas xav tau rau cov tshuab boiler (dej phab ntsa, superheaters, thiab lwm yam).
Tus nqi -zoo:Nws yog ib qho kev xaiv txhim khu kev qha thiab kev lag luam piv rau alloy steels rau qhov kub thiab txias nws yog tsim rau.
Siab Tightness:Ua cov yeeb nkab seamless, nws tsis muaj qhov ntev weld seam, uas yog lub peev xwm ua tsis tiav nyob rau hauv cyclic siab thiab kub.
Tej kev siv
SA-192 raj yog siv nyob rau hauv cov nram qab no seem ntawm lub boiler:
Dej Phab Ntsa Tubes:Cov kab ntsug uas tsim cov phab ntsa ntawm lub qhov cub, qhov twg dej yog rhuab thiab pib boil.
Boiler Bank Tubes:Lub ntsiab pob ntawm cov hlab ntsha uas feem ntau ntawm cov khoom siv hluav taws xob tshwm sim.
Economizer:Ua ntej- heats cov feedwater siv cov khoom siv hluav taws xob los ntawm cov pa taws.
Superheater:Ua kom sov lub saturated chav mus rau qhov kub siab dua (superheated chav) rau kev txhim kho turbine efficiency. (Faj seeb: Rau siab heev -kub superheaters, ib tug hlau alloy zoo li SA-213 T11/T22 yuav siv tau).
Thaum tshav kub kub Exchangersnyob rau hauv ntau yam txheej txheem kev lag luam uas ua haujlwm ntawm qhov sib xws ntawm cov siab thiab kub.
Sib piv nrog lwm cov Boiler Tubes
| Txuj | Hom | Qhov tseem ceeb sib txawv & Kev siv ib txwm |
|---|---|---|
| SIB-192 | Seamless carbon hlau | Tus qauv rausiab -siabcarbon steel boiler raj. |
| SIB-210 | Seamless carbon hlau | Zoo ib yam li SA-192 tab sis muaj zog tensile tsawg dua. Feem ntau siv rausuperheaterthiabkev lag luamdaim ntawv thov uas yuav tsum tau muaj zog dua me ntsis. Los hauv Qib A-1 thiab muaj zog dua Qib C. |
| SIB-178 | Hluav taws xob Resistance Welded (ERW) | Tus nqi qis dua - lwm txoj rauqis rau nruab nrab - siabkev pabcuam. Lub xub ntiag ntawm weld seam ua rau nws tsis txaus siab rau qhov tseem ceeb tshaj plaws - qhov chaw siab. |
| SIB-213 | Seamless Ferritic & Austenitic Alloy Steel | Siv rausiab -kubseem xws li superheaters thiab reheaters qhov twg oxidation kuj thiab creep zog yog xav tau (xws li, T11, T22, T91, TP304H). |
Cov ntsiab lus tseem ceeb rau kev siv
Kev Ua Raws Cai:SA-192 cov khoom yuav tsum tau tsim, sim, thiab ntawv pov thawj raws li ASME Boiler thiab Pressure Vessel Code (BPVC) rau siv hauv cov khoom siv siab.
Kub txwv:Nws tsis haum rau qhov kub siab heev - kev pabcuam kub (siab dua ~ 455℃/ 850℃F) qhov twg nkag los ua qhov tseem ceeb. Rau cov xwm txheej zoo li no, cov hlau alloy yog xav tau.
Corrosion:Thaum tsim nyog rau cov dej hauv boiler ib puag ncig (uas yog tshuaj kho), sab nraud corrosion los ntawm flue gases tuaj yeem muaj kev txhawj xeeb yog tias tsis tswj xyuas.
Hauv cov ntsiab lus,ASTM A192 / SA-192 yog cov khoom siv ua haujlwm rau seamless carbon steel raj hauv cov tshuab hluav taws xob siab, khoom plig rau nws cov kev sib xyaw ua ke ntawm lub zog, thermal conductivity, manufacturability, thiab nqi -effectiveness.
