Qhov twg GR1 titanium raj tau siv tiag tiag
ASTM B338 GR1 titanium rajtau nyob rau hauv kev pab rau ntau xyoo nyob rau hauv offshore platforms, tshuaj nroj tsuag, refineries, thiab desalination chaw. Cov ntawv thov hauv qab no yog sau los ntawm kev teeb tsa tiag tiag.
Rau tag nrho technical specifications thiab aASTM B338 GR1, saib cov khoom nplooj ntawv ntawm no.
Seawater txias rau ntawm ntug dej hiav txwv platforms
Offshore platforms tso cov ntim loj ntawm cov dej hiav txwv kom txias. Cov dej tuaj ncaj nraim ntawm dej hiav txwv - sov, chlorinated, tag nrho ntawm marine kev loj hlob, thiab feem ntau stagnation ntawm cov ceg tuag.
316L stainless hlau raj nyob rau hauv lub platform txias feem ntau kav 2-3 xyoo ua ntej pitting leaks pib. Copper-nickel siv sijhawm ntev dua tab sis erodes ntawm cov dej ntws siab thiab raug kev txom nyem los ntawm sulfide nres hauv thaj chaw uas tsis muaj zog.
GR1 titanium raj ntsia ntawm North Sea platforms hauv xyoo 1990s tseem nyob hauv kev pabcuam.Tsis muaj pitting. Tsis ntsuas phab ntsa poob.GR1 titanium tubing corrosion kuj seawateryog vim li cas cov hlab no tau kav ntev dua 25 xyoo.
Ib tus neeg teb xov tooj hloov ntawm 316L rauQib 1 titanium tubing rau cua sov exchangerkev pabcuam thiab txo cov nqi hloov raj txhua xyoo los ntawm $ 200,000 rau xoom. Cov raj titanium raug nqi ntau dua tab sis them rau lawv tus kheej hauv 18 lub hlis.
Desalination cog preheaters
Desalination nroj tsuag siv cov cua kub exchangers los preheat seawater ua ntej evaporation. Cov kua dej yog kub (65-75 degree), siab chlorides, thiab feem ntau muaj cov tshuaj chlorine residual los ntawm biofouling tswj.
Copper-nickel alloys raug mob nrawm nrawm hauv dej hiav txwv chlorinated. Stainless hlau pit. GR1 tuav ob leeg.
Ib tsob nroj desalination hauv Middle East hloov tsis tau 90/10 Cu-Ni raj nrog GR1 hauv 2005.Covtitanium condenser raj GR1tseem tab tom ua haujlwm yam tsis muaj qhov xau ntawm 15 xyoo kev tshuaj xyuas. Cov nroj tsuag tau tsim los ntawm GR1 rau tag nrho cov seawater preheaters.
Tshuaj cog cia txias tuav ntub chlorine
Cov roj chlorine ntub dej yog txhoj puab heev. Cov hlau feem ntau corrode sai heev. Titanium yog ib qho ntawm ob peb cov ntaub ntawv uas tiv thaiv cov chlorine ntub dej.
Cov nroj tsuag tshuaj tsim cov tshuaj chlorine-raws li cov khoom xav tau lub txias rau cov roj chlorine ntub dej ntawm 50℃. Thawj chav tsev siv graphite tshav kub exchanger. Graphite ua haujlwm tab sis tsis yooj yim thiab kim los hloov.
Ib qho GR1 titanium raj pob tau teeb tsa hauv xyoo 2010.Tom qab 10 xyoo ntawm kev ua haujlwm tas mus li, kev tshuaj xyuas tsis muaj kev cuam tshuam ntawm lub raj nplaim. Cov nroj tsuag tam sim no siv GR1 rau txhua qhov kev pabcuam chlorine ntub dej. Raws li ibASTM B338 GR1 titanium tube tsum, peb tau muab cov pob khoom zoo sib xws rau ntau cov nroj tsuag tshuaj.
Hydraulic roj txias rau ntawm qhov drilling rig
Hydraulic systems ntawm drilling rigs ua kom sov. Cov roj xav tau txias. Dej hiav txwv yog lub coolant.
Qhov kev sib tw tsis yog corrosion xwb - nws kuj hnyav. Stainless hlau txias txias yog hnyav. Copper-nickel hnyav dua. Titanium yog li 40% sib dua li stainless hlau rau tib lub zog.
Lub tshuab drilling ua haujlwm hauv Gulf of Mexico tau hloov mus rau GR1 raj cua txias hauv xyoo 2018.Lawv sivWelded titanium raj ASTM B338 Qib 1rau pob. Qhov hnyav txo qhov yooj yim installation. Tom qab 5 xyoos ntawm kev ua haujlwm hauv dej sov, dej qias neeg hauv Gulf, tsis muaj qhov tsis ua haujlwm ntawm lub raj.
Fais fab nroj tsuag condenser retrofits
Ntau lub chaw tsim hluav taws xob ntug dej hiav txwv tau tsim los ntawm cov hlau tsis muaj steel lossis tooj liab -nickel condenser raj tau rov qab kho dua rau titanium.
Ib lub chaw tsim hluav taws xob hauv Florida muaj cov raj xau ntev hauv nws cov dej hiav txwv -cooled condenser. Thawj 316L raj siv sijhawm 18-24 lub hlis ua ntej pitting. Txhua qhov xau yuav tsum tau kaw rau ntsaws los yog retubing.
Cov nroj tsuag tau hloov tag nrho cov pob nrog GR1 welded raj hauv xyoo 2015.Lawv xaivSeamless titanium raj ASTM B338 GR1rau qhov siab - ntu siab. Tom qab 8 xyoo, eddy kev ntsuam xyuas tam sim no tsis pom cov raj degradation. Cov nroj tsuag kwv yees cov nyiaj rov qab them rau nws tus kheej hauv 3 xyoos los ntawm kev txo qis txij nkawm.
Cov ntsiab lus ntawm kev ua haujlwm hauv cheeb tsam
| Daim ntawv thov | Kev pab lub neej nrog GR1 | Yav dhau los cov ntaub ntawv lub neej |
|---|---|---|
| Offshore platform txias txias | 25+ xyoo (tseem khiav) | 2-3 xyoos (316L) |
| Desalination preheater | 15+ xyoo (tseem khiav) | 5–7 xyoo (Cu-Ni) |
| Cov chlorine ntub dej txias | 10+ xyoo (tseem khiav) | 3-4 xyoos (graphite) |
| Drilling rig roj txias | 5+ xyoo (tseem khiav) | 3-4 xyoos (316L) |
| Fais fab nroj tsuag condenser | 8+ xyoo (tseem khiav) | 1.5-2 xyoos (316L) |
| Refinery qaub dej txias | 10+ xyoo (tseem khiav) | 4-6 xyoo (316L) |
Nyob rau hauv txhua rooj plaub, GR1 yog matched los yog tshaj lub neej kev pab cuam ntawm cov khoom qub.Nyob rau hauv feem ntau, nws ho outlasted txoj kev.
Vim li cas cov ntawv thov no ua haujlwm
Peb yam piav qhia txog GR1 txoj kev vam meej hauv cov kev pabcuam hnyav no:
1. Tsis muaj chloride pitting.Cov txheej txheem titanium oxide tsis tawg hauv chlorides.GR1 titanium tubing corrosion kuj seawateryog unmatched los ntawm stainless hlau los yog tooj liab alloys.
2. Kev tiv thaiv rau sulfides thiab ammonia.GR1 tuav H₂S thiab NH₃ tsis muaj kev ntxhov siab corrosion tawg lossis nrawm nrawm. Muaj ntau cov hlau tsis muaj steel thiab tooj liab alloys tsis muaj.
3. Ductility rau fabrication.GR1 khoov, yob, thiab welds tsis tawg.Qib 1 titanium tubing rau cua sov exchangerfabrication yog ncaj nraim nrog argon shielding.
FAQ
1. Puas yog GR1 tau siv nyob rau hauv siab -kub dej hiav txwv saum 80 degree?
Yog, tab sis nrog cov txiaj ntsig sib xyaw. Qee qhov kev teeb tsa ua haujlwm. Lwm tus tsim crevice corrosion. Rau kev pabcuam txhim khu kev qha saum toj 80 degree, GR7 yog qhov kev xaiv zoo dua.
2. Lub neej ua haujlwm ntev tshaj plaws rau GR1 hauv dej hiav txwv yog dab tsi?
Ntau tshaj 30 xyoo. Ib lub tuam txhab hluav taws xob hauv Nyij Pooj tau teeb tsatitanium condenser raj GR1thaum xyoo 1980s. Kev tshuaj xyuas ntawm 30 xyoo pom tias tsis muaj qhov ntsuas phab ntsa poob.
3. Puas yog GR1 ua haujlwm hauv dej hiav txwv chlorinated?
Yog lawm. Desalination nroj tsuag siv chlorinated seawater rau biofouling tswj. GR1 tuav cov tshuaj chlorine seem mus txog ntau ppm.
4. GR1 puas tuaj yeem siv rau hauv kev pabcuam amine (kev kho roj)?
Yog lawm. GR1 yog resistant rau amine corrosion. Qee cov nroj tsuag roj siv GR1 hauv cov nplua nuj amine txias qhov twg carbon hlau thiab stainless hlau raug kev puas tsuaj.
5. Puas yog GR1 puas tau ua tsis tiav hauv kev pabcuam?
Yog lawm, tab sis yuav luag txhua zaus vim yog teeb meem tsim lossis teeb tsa - tsis yog cov khoom tsis ua haujlwm. Feem ntau ua rau: crevice corrosion saum toj no 80 degree, galvanic corrosion los ntawm kev sib cais tsis zoo, los yog cov kab mob welds.
6. Puas yog GR1 siv nyob rau hauv nuclear fais fab nroj tsuag?
Yog lawm, tab sis tsis yog -nuclear kev pabcuam (cov dej txias, cua sov tsis kam). Nuclear thawj lub voj kev pabcuam feem ntau xav tauSeamless titanium raj ASTM B338 GR1los yog GR2 nrog kev kuaj ntxiv.
7. GR1 piv rau GR2 li cas hauv cov ntawv thov no?
Tsis muaj qhov sib txawv ntawm kev ua haujlwm corrosion. GR2 yog siv ntau zaus hauv tib daim ntawv thov no. Qhov kev xaiv feem ntau yog nyob ntawm qhov muaj thiab kev tsim khoom.
8. Dab tsi yog qhov loj tshaj lub raj siv hauv cov ntawv thov no?
25.4 hli OD x 1.65 hli phab ntsa rau lub plhaub thiab lub raj kub exchangers . 19 hli OD x 1.24 hli phab ntsa rau condensers.GR1 titanium U-khoov rajnyob rau hauv cov loj no yog tsis tu ncua stocked.
9. Puas yog welded GR1 raj siv tau rau cov ntawv thov no?
Yog lawm. Feem ntau ntawm cov ntawv teev npe saum toj no sivWelded titanium raj ASTM B338 Qib 1. Seamless tau teev tseg tsuas yog rau siab - siab lossis kev pabcuam kev nyab xeeb tseem ceeb.
10. Kuv tuaj yeem pom cov raj GR1 nyob qhov twg?
Mus ntsib ib qho chaw cog hluav taws xob hauv ntug dej hiav txwv, cov nroj tsuag desalination, lossis offshore platform. Ntau tus muaj titanium raj pob khoom tuaj yeem pom thaum lub sijhawm tu. Raws li ibASTM B338 GR1 titanium tube tsum, peb tuaj yeem muab cov ntaub ntawv los ntawm cov kev lag luam no.
