Hluav taws kub Boiler Tubes
Taw qhia
Hluav taws kub boiler raj yog ib qho tseem ceeb nyob rau hauv boiler systems, lub luag hauj lwm rau nqa high-temperature thiab high-pressure kua los yog chav nyob rau hauv lub boiler. Cov raj no raug rau cov xwm txheej hnyav, nrog rau cov cua kub hnyav, siab, thiab qhov chaw corrosive. Nws yog ib qho tseem ceeb uas yuav tsum xaiv cov khoom tsim nyog nrog cov khoom tshwj xeeb kom ntseeg tau tias kev ua haujlwm zoo thiab kev nyab xeeb ntawm boiler hlab.
Khoom siv thiab Specification
Hluav taws kub boiler raj feem ntau yog tsim los ntawm carbon steel, stainless hlau, thiab hlau alloy. Kev xaiv cov khoom siv yog ua raws li cov kev cai tshwj xeeb ntawm txhua daim ntawv thov, suav nrog cov yam ntxwv xws li kub, siab, thiab corrosion kuj. ASTM International cov qauv, xws li ASTM A192, ASTM A210, thiab ASTM A213, muab cov lus qhia rau kev tsim khoom thiab kev qhia tshwj xeeb ntawm cov hluav taws kub boiler raj.
Ntsiab nta
- High-temperature resistance: Hluav taws kub boiler raj yuav tsum tiv taus kub heev yam tsis muaj deformation tseem ceeb lossis puas.
- Kev ua haujlwm siab: Raws li cov raj boiler nqa cov kua dej los yog lub zog, lawv yuav tsum tau tiv taus qhov kub siab tsim nyob rau hauv qhov system.
- Corrosion resistance: Boiler tubes feem ntau raug rau qhov chaw corrosive, yog li xav tau cov ntaub ntawv uas tuaj yeem tiv taus corrosion zoo.
- Thermal conductivity: Kev hloov pauv hluav taws xob zoo yog qhov tseem ceeb rau kev ua haujlwm ntawm cov hlab boiler, vim lawv pab txhawb kev tsim thiab kev faib tawm ntawm chav.
Weldability: Cov khoom yuav tsum tau yooj yim weldable los xyuas kom meej seamless kev koom ua ke nyob rau hauv lub boiler system thaum lub sij hawm installation los yog txij nkawm.
Tshuaj muaj pes tsawg leeg
Cov tshuaj muaj pes tsawg leeg ntawm hluav taws kub boiler raj sib txawv nyob ntawm seb cov khoom tshwj xeeb thiab qib steel siv. Cov lus hauv qab no nthuav tawm cov ntsiab lus dav dav ntawm cov tshuaj muaj pes tsawg leeg ntawm cov khoom siv boiler tube uas nquag siv:
| Khoom siv | Cov pa roj carbon (%) | Manganese (%) | Silicon (%) | Chromium (%) | Nickel (%) | Lwm yam (%) |
| Carbon Steel | 0.08-0.20 | 0.30-0.70 | 0.10-0.35 | - | - | - |
| Stainless hlau | Tsawg dua lossis sib npaug rau 0.08 | Tsawg dua lossis sib npaug rau 2.00 | Tsawg dua lossis sib npaug rau 0.75 | 16.0-18.0 | 8.0-11.0 | - |
| Hlau alloy | 0.05-0.15 | 0.30-0.60 | 0.10-0.35 | 0.80-1.25 | - | Tsawg dua lossis sib npaug rau 0.30 |
Mechanical Properties
Txhawm rau kom muaj kev ncaj ncees thiab kev nyab xeeb ntawm cov hluav taws kub boiler raj, cov khoom siv kho tshuab tshwj xeeb ua lub luag haujlwm tseem ceeb. Cov lus hauv qab no qhia txog cov khoom siv kho tshuab uas xav tau los ntawm cov raj zoo boiler:
| Khoom siv | Yield zog (MPa) | Tensile zog (MPa) | Elongation (%) | Hardness (HB) |
| Carbon Steel | Ntau dua lossis sib npaug li 240 | 410-530 | Ntau dua lossis sib npaug 22 | Tsawg dua lossis sib npaug li 143 |
| Stainless hlau | Ntau dua lossis sib npaug rau 205 | Ntau dua lossis sib npaug li 515 | Ntau dua lossis sib npaug li 35 | Tsawg dua los yog sib npaug rau 192 |
| Hlau alloy | Ntau dua lossis sib npaug li 275 | 485-690 | Ntau dua lossis sib npaug li 20 | Tsawg dua lossis sib npaug li 179 |
Lub cev muaj zog
Lub cev lub cev ntawm cov hluav taws kub boiler raj, xws li ceev thiab thermal conductivity, yog qhov tseem ceeb rau lawv cov kev ua tau zoo. Cov lus hauv qab no nthuav tawm cov khoom siv lub cev ntawm cov khoom siv hauv boiler raj:
| Khoom siv | Qhov ceev (g / cm³) | Thaum tshav kub kub tshwj xeeb (J / kg·K) | Thermal conductivity (W / m · K) | Melting Point (zeeg) |
| Carbon Steel | 7.85 | 449 | 50.2-50.8 | 1425-1540 |
| Stainless hlau | 7.90 | 500 | 14.4-16.2 | 1398-1454 |
| Hlau alloy | 7.85 | 477 | 29.2-44.5 | 1371-1450 |
Txheej Txheem Kev Ua Haujlwm
Boiler tubes yuav tsum muaj cov txheej txheem ua tau zoo heev kom ntseeg tau tias muaj kev hloov hluav taws xob zoo, ua haujlwm ntev, thiab kev ntseeg tau. Cov lus hauv qab no qhia txog cov txheej txheem kev ua tau zoo ntawm cov hluav taws kub boiler raj:
| Khoom siv | Thermal Expansion Coefficient (10⁻⁶/K) | Oxidation Resistance | Creep Resistance |
| Carbon Steel | 10-12 | Nruab nrab | Nruab nrab |
| Stainless hlau | 10-16 | Zoo heev | Zoo heev |
| Hlau alloy | 10-13 | Zoo | Zoo |
Qib Steel
Cov qib steel sib txawv muaj rau hluav taws kub boiler raj los muab cov khoom tsim nyog rau kev siv tshwj xeeb. Cov qib steel feem ntau suav nrog ASTM A192, ASTM A210A1, ASTM A213 T11, thiab ASTM A335 P11. Txhua qib steel muaj nws tus kheej sib xyaw ua ke ntawm cov khoom, ua rau nws tsim nyog rau kev ua haujlwm sib txawv thiab cov kev xav tau.
Daim ntawv thov
Hluav taws kub boiler raj pom kev siv dav hauv ntau yam kev lag luam thiab cov txheej txheem, suav nrog kev tsim hluav taws xob, kev tsim tshuaj lom neeg, roj refineries, thiab cua sov tshuab. Lawv yog ib qho tseem ceeb ntawm cov boilers, kom ntseeg tau tias lub zog hloov dua siab tshiab ntawm lub zog thiab ua haujlwm raws li cov kav dej rau tiam thiab kev faib tawm ntawm chav dej lossis cov kua dej kub.
Cov qhab nia xaiv tau
Raws li cov kev xav tau tshwj xeeb thiab daim ntawv thov, lwm qib steel tuaj yeem suav tias yog cov khoom siv tsim nyog rau hluav taws kub boiler raj. Qee qhov kev xaiv muaj xws li ASTM A179, ASTM A106, ASTM A312, thiab ASTM A335. Cov kev xaiv no muaj cov khoom siv sib txawv, tso cai rau kev hloov pauv ntau dua hauv kev xaiv qib tsim nyog tshaj plaws rau ib qho kev boiler system.
Hauv kev xaus, qhov hluav taws kub boiler raj ua lub luag haujlwm tseem ceeb hauv kev nyab xeeb thiab ua haujlwm zoo ntawm boilers. Kev xaiv cov ntaub ntawv tsim nyog raws li lawv cov yam ntxwv tseem ceeb, tshuaj lom neeg thiab cov khoom siv kho tshuab, lub cev muaj zog, thiab cov txheej txheem kev ua tau zoo yog qhov tseem ceeb rau kev ua tiav kev ua haujlwm zoo thiab kev ua haujlwm ntev. Los ntawm kev xaiv cov khoom tsim nyog thiab txiav txim siab txog qib kev ua tau zoo, lub tshuab boiler tuaj yeem ua tau raws li qhov xav tau ntawm cov kev siv kub thiab kev kub siab hauv ntau yam kev lag luam.
Cim npe nrov: hluav taws kub boiler raj, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, nqe, kev muag khoom
