Dej Phab Ntsa Steam Boiler Tubes
Taw qhia
Dej phab ntsa chav boiler tubes ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm zoo ntawm chav boilers, kom ntseeg tau tias kev hloov pauv ntawm cov cua sov los ntawm cov roj combustion rau cov dej hauv boiler. Cov khoom muaj pes tsawg leeg, kev qhia tshwj xeeb, thiab cov khoom siv kho tshuab ntawm cov raj no yog qhov tseem ceeb rau lawv qhov kev ua tau zoo thiab kev ua haujlwm ntev hauv qhov kub thiab txias ib puag ncig.
Khoom siv thiab Specification
Dej phab ntsa chav boiler raj feem ntau yog ua los ntawm cov pa roj carbon zoo los yog hlau alloy. Cov lus qhia tshwj xeeb rau cov raj no yuav txawv nyob ntawm qhov tshwj xeeb ntawm cov chaw tsim khoom boiler thiab daim ntawv thov npaj. Common specifications muaj xws li:
Khoom siv: Carbon steel los yog hlau alloy
Outer Diameter (OD): Nws txawv raws li tus qauv boiler
Phab ntsa Thickness: Feem ntau ntawm 4mm txog 50mm
Ntev: Customizable kom haum boiler qhov ntev
Corrosion Resistance: Txhim kho los ntawm kev kho kom zoo los yog txheej txheej
Ntsiab nta
Dej phab ntsa chav boiler raj muaj ntau yam tseem ceeb uas tseem ceeb rau lawv cov kev ua tau zoo thiab kev ntseeg tau:
High Temperature Resistance: Muaj peev xwm tiv taus qhov kub thiab txias uas tsim los ntawm combustion gases.
High Pressure Resistance: Muaj peev xwm tiv taus lub siab tsim nyob rau hauv lub boiler system.
Corrosion Resistance: Resistant corrosion los ntawm dej thiab combustion byproducts, kom ntseeg tau lub neej ntev.
Zoo Weldability: Ua kom yooj yim ntawm installation thiab txij nkawm.
Uniform Thaum tshav kub kub hloov: Ua kom muaj cua sov hloov pauv los ntawm cov pa roj carbon monoxide mus rau hauv dej, ua kom muaj txiaj ntsig zoo ntawm boiler.
Tshuaj muaj pes tsawg leeg
Cov tshuaj muaj pes tsawg leeg ntawm cov dej phab ntsa chav boiler raj yog nyob ntawm cov qib tshwj xeeb ntawm cov hlau siv. Hauv qab no yog ib qho tseem ceeb muaj pes tsawg leeg rau carbon steel raj:
| Element | Kev sib xyaw (%) |
| Cov pa roj carbon (C) | 0.08 - 0.25 |
| Manganese (Mn) | 0.30 - 0.90 |
| Silicon (Si) | 0.10 - 0.50 |
| Phosphorus (P) | 0.040 (max) |
| Sulfur (S) | 0.040 (max) |
Rau cov hlau hlau hlau, cov khoom xws li chromium, molybdenum, thiab npib tsib xee raug ntxiv los txhim kho cov khoom tshwj xeeb.
Mechanical Properties
Dej phab ntsa chav boiler raj yuav tsum muaj cov khoom siv dag zog kom tiv taus qhov kub thiab txias. Tej yam khoom muaj xws li:
| Khoom | Tus nqi |
| Tensile zog | 400 - 600 MPa |
| Yield zog | 200 - 400 MPa |
| Elongation | 20% (min) |
| Hardness | HRB 60 - 90 |
| Impact Toughness | Ntau yam |
Lub cev muaj zog
Ntxiv nrog rau cov khoom siv kho tshuab, qee yam khoom siv lub cev yog qhov tseem ceeb rau cov dej phab ntsa chav boiler raj:
| Khoom | Tus nqi |
| Qhov ntom | 7.85 g / cm³ (kwv yees) |
| Thermal conductivity | 25 - 50 W/(m·K) |
| Tshwj xeeb kub | 0.47 J/g·K (kwv yees) |
| Thermal Expansion | 10 - 12 µm/m·K |
Txheej Txheem Kev Ua Haujlwm
Dej phab ntsa chav boiler tubes raug soj ntsuam nruj kom ntseeg tau tias lawv ua tau raws li cov qauv kev ua haujlwm. Cov kev ntsuam xyuas tseem ceeb suav nrog:
Kev Ntsuas Hydrostatic: Ua kom cov raj tuaj yeem tiv taus lub siab tsim los ntawm lub boiler.
Kev Ntsuas Ultrasonic: Tshawb xyuas cov teeb meem sab hauv xws li tawg lossis voids.
Dimensional Inspection: Txheeb xyuas cov raj qhov ntev thiab qhov kam rau ua.
Steel Qib thiab Daim Ntawv Thov
Ntau qib steel yog siv rau phab ntsa chav boiler raj, nrog rau cov qib xws li ASTM A192, ASTM A210, thiab ASTM A213. Cov raj no pom cov ntawv thov hauv:
Fais fab Generation Plants: Siv nyob rau hauv boilers los tsim chav rau hluav taws xob tsim.
Cov Txheej Txheem Kev Lag Luam: Ua haujlwm hauv ntau yam kev lag luam xws li petrochemical, tshuaj, thiab kev tsim khoom rau cov txheej txheem cua sov.
Cov qhab nia xaiv tau
Raws li cov kev xav tau tshwj xeeb, lwm qib steel yuav raug txiav txim siab, suav nrog:
ASTM A178: Haum rau cov ntawv thov uas tsis tshua muaj siab.
ASTM A335: Zoo tagnrho rau qhov kub thiab txias ib puag ncig.
ASTM A556: Tshwj xeeb tsim los siv rau hauv cov phab ntsa dej txias.
Dej phab ntsa chav boiler raj yog ib qho tseem ceeb hauv cov tshuab boiler, kom ntseeg tau tias muaj cua sov hloov mus thiab txhim khu kev lag luam hauv ntau hom kev lag luam. Los ntawm kev xaiv cov khoom tsim nyog, ua raws li cov lus qhia nruj, thiab tswj xyuas cov qauv tsim khoom zoo, cov raj no ua rau muaj kev ua tau zoo thiab kev nyab xeeb ntawm cov txheej txheem tsim hluav taws xob.
Cim npe nrov: dej phab ntsa chav boiler raj, Tuam Tshoj, lwm tus neeg, manufacturers, hoobkas, lag luam wholesale, nqe, kev muag khoom
