Corrosion-resistant cov ntaub ntawv thiab kev txiav txim siab tseem ceeb rau kev xaiv kub \/ kev tiv thaiv siab siab siab
Hauv kev lag luam tshuaj, lub twj tso kua mis ib qho kev tiv thaiv corrosion thiab kev hloov kho kom haum \/ hp) tej yam kev cuam tshuam ncaj qha cuam tshuam cov kav lim tiam thiab kev nyab xeeb. Hauv qab no yog cov lus qhia tshaj tawm rau cov tswv yim xaiv tseem ceeb:
1. Corrosion-resistant cov khoom xaiv
Cov Ntsiab Cai Tseem Ceeb: Sib phim cov ntaub ntawv rau cov yam ntxwv nruab nrab thaum ntsuas tus nqi thiab ntev.
| Khoom | Cov Ntawv Thov | Kev txwv |
|---|---|---|
| Roj fluoroplastics | Cov kua qaub muaj zog (HCL, hso₄), qis temps (tsawg dua los yog sib npaug rau 150 degree) | Tsawg cov neeg kho zog, tsis zoo |
| Lawg | Cov Temps Loj (tsawg dua los yog sib npaug rau 400 degree), chlorine-muaj cov xov xwm | Tus nqi siab, cov ntaub ntawv fab fab nyuab |
| Duplex Stainless Hlau | Dej hiav txwv, cov dej pheeb suab yeeb | Tsis muaj zog tawm tsam cov horse₄ \/ hf |
| Rooj ceramics | Lub siab temps (tsawg dua los yog sib npaug rau 1000 degree), slurries nrog cov khib nyiab | Nkig, tsawg cuam tshuam |
Piv txwv:
Hydrochloric acid (>10% siab): Hastelloy b -3 lossis fluoroplastic-lined twj.
HYFOFLUBIC acid: Monel Alloy + Silicon Carbide Ntsaws.
2. Kev ua kom zoo rau HT \/ HP tej yam kev mob
High Temperature (>150 Qeb):
Ntaub ntawv: Chav hlau ob (<300°C), nickel-based alloys (300–600°C), ceramic coatings (>600 degree).
Kev tsim ua: Ntxiv cov tsho kom txias lossis cov khoom ua haujlwm kom txo cov cua sov.
High Pressure (>10 MPA):
Siv cov ntoo thuv tuab pov cov kua mis lub cev lossis multistage nqus mus rau faib cov siab.
Daim ntsaws ruaj ruaj: Muab cov khoom siv neeg ua ke txhua yam + thaiv cov kua ntoo; Zam kev muab ntim.
Kev Kawm Txog: 380 Qib, 8 MPA Hydrocacking Roj Twj Tso Kua Mis
Khoom: Incoloy 825
Qho kawg: Lifepan txuas ntxiv ntawm 6 lub hlis mus rau 3 xyoos.
3. Txhim kho cov txheej txheem xaiv
Txhais cov nruab nrab muaj pes tsawg leeg, ntsuas kub, thiab siab.
Npo corrosion-resistant cov ntaub ntawv (xa mus rau nace qauv).
Txheeb xyuas qhov siab kub lub zog thiab kaw kev cia siab.
Sib piv cov nqi thiab txij nkawm mus ncig.
Lub ntsiab
Ua ntej cov ntaub ntawv sib xyaw nrog cov xeb nruab nrab. Rau HT \/ HP cov kev mob, txhawb cov qauv kev tsim qauv thiab siv tau cov kev daws teeb meem nrog kev kawm. Kev Xaiv Xaiv los ntawm kev tsom rau cov ntaub ntawv, cov ntsaws ruaj ruaj, thiab txias kom sib npaug thiab tus nqi.