Moetsi le Morekisi oa Lipeipi tsa tšepe Chaena |

"Pipeline Steel" ke eng?

Pipeline steel ke mofuta oa tšepe o sebelisetsoang ho etsa mekhoa ea ho tsamaisa lipeipi tsa oli le khase. Joalo ka sesebelisoa sa ho tsamaisa oli le khase ea tlhaho ka nako e telele, tsamaiso ea liphaephe e na le melemo ea moruo, polokeho le ho se sitisoe.

carbon-LSAW-of-project031

Tšebeliso ea tšepe ea pipeline

Pipeline tšepemefuta ea lihlahisoa e kenyelletsa liphaephe tsa tšepe tse se nang seamless le lipeipi tsa tšepe tse cheselitsoeng, tse ka aroloa ka mekhahlelo e meraro: libaka tsa alpine, libaka tse nang le sebabole se phahameng le ho behoa ha leoatle. .

Liqholotso tse ngata tse tobaneng le tšepe ea liphaephe li kenyelletsa: boholo ba libaka tsa oli le khase li sebakeng sa polar, li-ice sheets, mahoatateng le libaka tsa maoatle, 'me maemo a tlhaho a batla a le boima;kapa e le ho ntlafatsa katleho ea lipalangoang, bophara ba pipeline bo lula bo atolosoa, 'me khatello ea ho fana e lula e eketseha.

Thepa ea tšepe ea Pipeline

Ho tsoa tlhahlobong e felletseng ea mokhoa oa nts'etsopele ea liphaephe tsa oli le khase, maemo a ho beha liphaephe, mekhoa e meholo ea ho hloleha le lisosa tsa ho hloleha, tšepe ea liphaephe e lokela ho ba le thepa e ntle ea mochini (lebota le letenya, matla a phahameng, ho tiea ho hoholo, ho se sebetse hantle), hape e lokela ho ba le thepa e ntle ea mochini. bophara bo boholo, E boetse e lokela ho ba le bophara bo boholo, ho chesoa, ho bata le ho hanyetsa mocheso o tlase, ho hanyetsa kutu (CO2), ho hanyetsa metsi a leoatle le HIC, ts'ebetso ea SSCC, joalo-joalo.

①Matla a holimo

Pipeline tšepe ha e hloke feela matla a phahameng a tensile le matla a tlhahiso, empa e boetse e hloka hore karolelano ea lihlahisoa e be sebakeng sa 0.85 ~ 0.93.

② Tšusumetso e matla

matla a phahameng a tšusumetso a ka finyella litlhoko tsa ho thibela ho phunyeha.

③Mocheso o tlase oa phetoho ea ductile-brittle

Libaka tse thata le maemo a leholimo a hloka tšepe ea liphaephe hore e be le mocheso o lekaneng o tlaase oa ductile-brittle transition. The shear area ea DWTT (Drop Weight Tear Test) e fetohile letšoao le ka sehloohong la taolo ho thibela ho hlōleha ha liphaephe. sebaka sa fracture shear sa mohlala e be ≥85% ka mocheso o tlase haholo oa ts'ebetso.

④Ho hanyetsa ka mokhoa o babatsehang ho phunyeha ha hydrogen-induced cracking (HIC) le sulfide stress corrosion cracking (SSCC)

⑤ Ts'ebetso e ntle ea welding

Weldability e ntle ea tšepe e bohlokoa haholo ho netefatsa boleng ba tjheseletso ea phala.

carbon-steel-api-5l-x65-psl1-pipe

Litekanyetso tsa tšepe tsa Pipeline

Hajoale, litekanyetso tsa mantlha tsa tekheniki tsa lipeipi tsa tšepe tsa phetisetso ea oli le khase tse sebelisoang naheng ea heso li kenyelletsaAPI 5L, DNV-OS-F101, ISO 3183, le GB/T 9711, joalo-joalo. Boemo bo akaretsang bo tjena:

① API 5L (litlhaloso tsa liphaephe tsa mohala) ke litlhaloso tse amohetsoeng hohle tse hlophisitsoeng ke Setsi sa Maine Petroleum.

② DNV-OS-F101 (tsamaiso ea liphaephe tse tsamaeang ka tlas'a metsi) ke tlhaloso e khethehileng e entsoeng ke Det Norske Veritas bakeng sa liphaephe tse tsamaeang ka tlas'a metsi.

③ ISO 3183 ke tekanyetso e hlophisitsoeng ke Mokhatlo oa Machabeng oa Boemo ba maemo mabapi le maemo a phano ea lipeipi tsa tšepe bakeng sa phetisetso ea oli le khase.Tekanyetso ena ha e kenyelle moralo le ho kenya lipeipi.

④ Phetolelo ea morao-rao ea GB/T 9711 ke mofuta oa 2017. Phetolelo ena e ipapisitse le ISO 3183:2012 le API Spec 5L 45th Edition.ho ipapisitse le maemo a mabeli a boletsoeng, maemo a mabeli a tlhahiso ea sehlahisoa a hlalositsoe: PSL1 le PSL2.PSL1 e fana ka boemo bo tloaelehileng ba boleng ba pipe ea mohala;PSL2 e eketsa litlhoko tse tlamang ho kenyelletsa sebopeho sa lik'hemik'hale, ho tiea ha li-notch, thepa ea matla le tlhahlobo ea tlatsetso e sa senyeheng (NDT).

API SPEC 5L le ISO 3183 ke litlhaloso tsa lipeipi tsa mela tse nang le tšusumetso lefatšeng ka bophara.Ka lehlakoreng le leng, lik'hamphani tse ngata tsa oli lefatšeng li tloaetse ho li sebelisaLitlhaloso tsa API SPEC 5L joalo ka lintlha tsa mantlha tsa ho reka lipeipi tsa tšepe.

Tlhahlobo ea lipeipi tsa LSAW
tlhahlobo ea lipeipi tsa tšepe

Odara tlhahisoleseding

Konteraka ea taelo ea tšepe ea pipeline e lokela ho kenyelletsa lintlha tse latelang:

① Bongata (kakaretso ea boima kapa palo e felletseng ea lipeipi tsa tšepe);

② Boemo bo tloaelehileng (PSL1 kapa PSL2);

Pipe ea tšepemofuta (o se nang seam kapapeipi e cheselitsoeng, ts'ebetso e khethehileng ea tjheseletsa, mofuta oa ho qetela oa pipe);

④Ho ipapisitsoe le maemo, joalo ka GB/T 9711-2017;

⑤ tšepe kereiti;

⑥Botenya ba kantle le botenya ba lebota;

⑦ Mofuta oa bolelele le bolelele (o sa sehiloeng kapa o sehiloeng);

⑧ Fumana tlhoko ea ho sebelisa sehlomathiso.

Limaraka tsa lipeipi tsa tšepe le limaraka tsa tšepe (GB/T 9711-2017)

Normative levelsteel sekhahla sa phala ea tšepe tšepe kereiti
PSL1 L175 A25
L175P A25P
L210 A
L245 B
L290 X42
L320 X46
L360 X52
L390 X56
L415 X60
L450 X65
L485 X70
PSL2 L245R BR
L290R X42R
L245N BN
L290N X42N
L320N X46N
L360N X52N
L390N X56N
L415N X60N
L245Q BQ
L290Q X42Q
L320Q X46Q
L360Q X52Q
L390Q X56Q
L415Q X60Q
L450Q X65Q
L485Q X70Q
L555Q X80Q
L625Q X90Q
L690Q X100M
L245M BM
L290M X42M
L320M X46M
L360M X52M
L390M X56M
L415M X60M
L450M X65M
L485M X70M
L555M X80M
L625M X90M
L690M X100M
L830M X120M

 

 


Nako ea poso: Jan-30-2023

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