Li-Tubes tsa Nickel li Hokae ho Tloha ho Petrochemical ho ea ho Likopo tsa Marine
2025-06-19
Li-tubes tsa nickel le nickel alloy ke likarolo tsa bohlokoa liindasteri tse hlokang ho hanyetsa kutu e ikhethang, matla a mocheso o phahameng, le ho ts'epahala ha nako e telele. Ho tloha libakeng tse thata tsa lik'hemik'hale ho ea ho lits'ebetso tse tebileng tsa leoatle, li-tubes tsa nickel li fana ka ts'ebetso e ke keng ea lekanngoa moo lisebelisoa tse ling li hlōlehang. Sengoliloeng sena se hlahloba lits'ebetso tsa bona tsa mantlha ho liindasteri tse kholo, se shebane le lintlha tsa tekheniki le melemo ea thepa.
Khoebo ea Petrochemical
Nickel tubes (mohlala, EA-625-TK, Hastelloy C276) li sebelisoa haholo ho:
| kopo | Motsoako Type | Lintho Tsa Bohlokoa Tse Hlokehang |
|---|---|---|
| Ethylene cracker tubes | Setšoantšo sa 800HT | Ho hanyetsa ho phahama ho hoholo (800°C+) |
| Liphaephe tsa Hydroprocessing | Hastelloy B3 | khanyetso ea HCl/H₂SO₄ |
| Catalyst tubing | Nickel 201 | Nickel e hloekileng (99.6% Ni) bakeng sa ho se sebetse |
Ke hobane'ng ha Nickel?
-
E hanela metsoako ea sebabole le lihlahisoa tse nang le asiti
-
E boloka matla ka har'a libopi tsa pyrolysis (ho fihla ho 1100 ° C)
Moloko oa Matla
Ka lifemeng tsa mafura a nyutlelie le mesaletsa ea lintho tsa khale:
| Sehlopha | Alloy e tloaelehileng | Maemo a sebetsang |
|---|---|---|
| Li-tubes tsa jenereithara ea mouoane | EA-690-TK | 300°C, 15MPa (li-reactor tsa PWR) |
| Li-superheaters tsa boiler | Setšoantšo sa 800 | 700°C, ho pepeseha ha khase ea flue |
| Li-condenser tsa turbine | Alloy 400 (Monel) | Ho hanyetsa ho pholile ha metsi a leoatle |
Molemo oa Bohlokoa:
-
Li-alloys tsa Ni-Cr li thibela ho phatloha ha khatello ea maikutlo (SCC) ka mouoane o nang le khatello e phahameng
Marine & Offshore
Bakeng sa tsamaiso ea metsi a leoatle le maoatle:
| Sebelisa Nako | lintho tse bonahalang | Ke hobane'ng ha Nickel? |
|---|---|---|
| Li-tubes tsa mocheso oa desalination | Titanium-stabilized Ni alloys | Khanyetso ea ion ea chloride |
| Likhubu tsa subsea | Alloy 625 (UNS N06625) | Ho hanyetsa mokhathala ka botebo ba 4000m |
| Liphaephe tsa metsi tsa Ballast | Ke 90/10 | Thibelo ea biofouling |
Lintlha tsa data:
-
Li-alloys tsa Ni-Cu (mohlala, Monel) li bontša <0.1mm/selemo sa kutu ea selemo metsing a leoatle
Ho sebelisa lik'hemik'hale
Ho sebetsana le mecha ea litaba e mabifi:
| Helmets | Khetho ea Alloy | Khanyetso ea Lik'hemik'hale |
|---|---|---|
| Li-evaporator tsa asiti | Hastelloy C22 | Metsoako ea HNO₃ + HCl |
| Mela ea Caustic soda | Nickel 200 | NaOH ho fihlela ho 50%. |
| Lihlooho tsa khase ea chlorine | EA-600-TK | Khase e omileng ea Cl₂ (ho fihla ho 540°C) |
Tlhahisoleseling:
-
Ni-Mo alloys (mohlala, Hastelloy B2) e mamella ho fokotsa acid ho pH <0
Lisebelisoa tse Hlahang
| Lefapha | Tšebeliso e Ncha | Mokhoa oa Alloy |
|---|---|---|
| matla a haedrojene | Lijana tsa polokelo tsa H₂ tsa khatello e phahameng | Inconel 718 (AGE phekoloa) |
| Semiconductor | Mekhoa ea phepelo ea khase ea Ultra-high-purity (UHP). | Electropolished Ni 201 |
| 3D oa khatiso | Powder-bed fusion (LPBF). | Ke 625 phofo e chitja |
Ke Hobane'ng ha U Hlalosa Li-tube tsa Nickel?
- Bophelo bo Bolelele ba Tšebeletso: 2-3x nako ea bophelo khahlanong le tšepe e sa hloekang ka chloride
- Bokgoni ba Litšenyehelo: Nako e fokotsehileng ea nako / tlhokomelo e fokotsa litšenyehelo tse phahameng tsa pele
- ho latelwa taolo: E kopana le NACE MR0175, ASME BPVC, le EN 10204
Keletso ea Litsebi: Bakeng sa tšebeletso e bolila (litikoloho tsa H₂S), beha pele Setšoantšo sa 825 ka ≥40% Ni content ho thibela sulfide stress cracking.
U KA FIHLELA
