Umkhiqizi Nomhlinzeki Wamapayipi Ensimbi Ehamba Phambili E-China |

Iyini i-“Pipeline Steel”?

Insimbi yepayipi iwuhlobo lwensimbi olusetshenziselwa ukukhiqiza izinhlelo zokuthutha uwoyela negesi.Njengethuluzi lokuthutha elikude likawoyela negesi yemvelo, uhlelo lwamapayipi lunezinzuzo zomnotho, ukuphepha nokungaphazanyiswa.

ikhabhoni-LSAW-yephrojekthi031

Isicelo sensimbi yepayipi

Insimbi yamapayipiamafomu omkhiqizo ahlanganisa amapayipi ensimbi angenamthungo kanye namapayipi ensimbi ashiselwe, angahlukaniswa abe izigaba ezintathu: izindawo eziphakeme ze-alpine, ezinesulfure ephezulu kanye nokubeka ngaphansi kolwandle. Lawa mapayipi anendawo yokusebenza enokhahlo anemigqa emide futhi akulula ukuwanakekela, futhi anezidingo eziqinile zekhwalithi. .

Izinselele eziningi ezibhekene nensimbi yamapayipi zihlanganisa: izindawo eziningi zikawoyela negesi zitholakala ezindaweni ezishisayo, amaqhwa, izingwadule, nezilwandle, futhi izimo zemvelo zinzima uma kuqhathaniswa;noma ukuze kuthuthukiswe ukusebenza kahle kwezokuthutha, ububanzi bepayipi bukhuliswa njalo, futhi ingcindezi yokulethwa ikhuphuka njalo.

I-Pipeline Steel Properties

Kusukela ekuhlolweni okuphelele kokuthuthuka komzila wamapayipi kawoyela negesi, izimo zokubeka amapayipi, izindlela zokwehluleka okukhulu nezimbangela zokwehluleka, insimbi yamapayipi kufanele ibe nemishini emihle (udonga oluwugqinsi, amandla aphezulu, ukuqina okuphezulu, ukumelana nokugqokwa), futhi kufanele ububanzi obukhulu, Kufanele futhi ibe nobubanzi obukhulu, ukushisela, ukumelana nezinga lokushisa elibandayo nokuphansi, ukumelana nokugqwala (CO2), ukumelana namanzi olwandle kanye ne-HIC, ukusebenza kwe-SSCC, njll.

①Amandla aphezulu

Insimbi yamapayipi ayidingi nje kuphela amandla amakhulu okudonsa amandla namandla okukhiqiza, kodwa futhi idinga isilinganiso sesivuno sibe kububanzi obungu-0.85~0.93.

② Ukuqina komthelela ophezulu

ukuqina komthelela omkhulu kungahlangabezana nezidingo zokuvimbela ukuqhekeka.

③Izinga lokushisa eliphansi le-ductile-brittle transition

Izifunda eziqinile nezimo zezulu zidinga insimbi yamapayipi ukuze ibe nezinga lokushisa eliphansi ngokwanele le-ductile-brittle transition.Indawo yokugunda ye-DWTT (i-Drop Weight Tear Test) isiphenduke inkomba eyinhloko yokulawula ukuvimbela ukuhluleka kwamapayipi okufiphala. indawo yokugunda egundayo yesifanekiso ibe ngu-≥85% ezingeni lokushisa eliphansi kakhulu lokusebenza.

④Ukumelana okuhle kakhulu nokuqhekeka kwe-hydrogen-induced (HIC) kanye ne-sulfide stress corrosion cracking (SSCC)

⑤ Ukusebenza okuhle kwe-welding

Ukushisela okuhle kwensimbi kubaluleke kakhulu ukuze kuqinisekiswe ubuqotho kanye nekhwalithi yokushisela yepayipi.

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

I-Pipeline Steel Standards

Njengamanje, izindinganiso eziyinhloko zezobuchwepheshe zamapayipi ensimbi okuhambisa uwoyela negesi asetshenziswa ezweni lami ahlanganisaI-API 5L, DNV-OS-F101, ISO 3183, kanye ne-GB/T 9711, njll. Isimo esijwayelekile simi kanje:

① I-API 5L (incazelo yepayipi lomugqa) iwuphawu olwamukelwa kabanzi olwakhiwe i-Maine Petroleum Institute.

② I-DNV-OS-F101 (uhlelo lwamapayipi ahamba ngaphansi kolwandle) luyisimiso esiklanywe ngokukhethekile yi-Det Norske Veritas samapayipi ahamba ngaphansi kolwandle.

③ I-ISO 3183 iyindinganiso eyakhiwe yi-International Organisation for Standardization ezimweni zokulethwa kwamapayipi ensimbi okuhambisa uwoyela negesi.Leli zinga alibandakanyi ukuklanywa nokufakwa kwamapayipi.

④ Inguqulo yakamuva ye-GB/T 9711 inguqulo yango-2017. Le nguqulo isekelwe ku-ISO 3183:2012 ne-API Spec 5L 45th Edition.ngokusekelwe kukho kokubili. Ngokuhambisana namazinga amabili okubalulwe, amazinga amabili wokucaciswa komkhiqizo acacisiwe: PSL1 kanye ne-PSL2.PSL1 ihlinzeka ngezinga elijwayelekile lekhwalithi yepayipi lolayini;I-PSL2 yengeza izidingo eziyisibopho ezihlanganisa ukwakheka kwamakhemikhali, ukuqina kwenotshi, izakhiwo zamandla kanye nokuhlola okungeziwe okungabhubhisi (NDT).

I-API SPEC 5L ne-ISO 3183 yizicaciso zamapayipi kalayini anomthelela emhlabeni jikelele.Ngokuphambene nalokho, izinkampani zikawoyela eziningi emhlabeni zijwayele ukwamukelaUkucaciswa kwe-API SPEC 5L njengokucaciswa okuyisisekelo kokuthengwa kwepayipi lensimbi yepayipi.

Ukuhlolwa kwepayipi le-LSAW
ukuhlolwa kwepayipi lensimbi

Oda ulwazi

Inkontileka ye-oda yensimbi yamapayipi kufanele ifake ulwazi olulandelayo:

① Ubuningi (isamba esiphelele noma inani eliphelele lamapayipi ensimbi);

② Izinga elivamile (PSL1 noma PSL2);

Ipayipi lensimbiuhlobo (okungenamthungo nomaipayipi elishiselwe, inqubo ye-welding ethize, uhlobo lokuphela kwepayipi);

④Ngokusekelwe kumazinga, afana ne-GB/T 9711-2017;

⑤ steel grade;

⑥Ububanzi bangaphandle nokuqina kodonga;

⑦ Ubude nohlobo lobude (okungasikiwe noma okusikiwe);

⑧ Thola isidingo sokusebenzisa isithasiselo.

Amamaki epayipi lensimbi namabanga ensimbi (GB/T 9711-2017)

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

 

 


Isikhathi sokuthumela: Jan-30-2023

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