UMvelisi weMibhobho yentsimbi eKhokelayo kunye noMboneleli eTshayina |

Yintoni "iPipeline Steel"?

I-pipeline steel luhlobo lwensimbi esetyenziselwa ukuvelisa iinkqubo zokuthutha i-oyile kunye negesi. Njengesixhobo sokuthutha umgama omde we-oyile kunye negesi yendalo, inkqubo yepayipi inenzuzo yezoqoqosho, ukhuseleko kunye nokungaphazanyiswa.

carbon-LSAW-yeprojekthi031

Ukusetyenziswa kwentsimbi yombhobho

Intsimbi yombhobhoiifom zeemveliso ziquka imibhobho yentsimbi engenamthungo kunye nemibhobho yentsimbi edityanisiweyo, enokuthi yahlulwe ibe ngamacandelo amathathu: ialpine, iindawo ezinesulfure ephezulu kunye nokubekwa kolwandle. .

Imingeni emininzi ejongene nentsimbi yombhobho ibandakanya: ininzi yeendawo ze-oyile kunye negesi zifumaneka kwimimandla ye-polar, i-ice sheets, iintlango, kunye neendawo zolwandle, kwaye iimeko zendalo zinzima kakhulu;okanye ukwenzela ukuba kuphuculwe ukusebenza kakuhle kwezothutho, ububanzi bombhobho buhlala bukhuliswa, kwaye uxinzelelo lokuhambisa luhlala lusanda.

IiPropati zeNtsimbi yePipeline

Ukusuka kuvavanyo olubanzi lwendlela yophuhliso lwemibhobho yeoli kunye negesi, iimeko zokubeka imibhobho, iindlela eziphambili zokungaphumeleli kunye nezizathu zokusilela, intsimbi yombhobho kufuneka ibe neempawu ezilungileyo zomatshini (udonga olungqindilili, ukomelela okuphezulu, ukuqina okuphezulu, ukuxhathisa), kwaye kufuneka kwakhona Idayimitha enkulu, kufuneka kwakhona ibe nedayamitha enkulu, ukuwelda, ukubanda kunye nokumelana nobushushu obuphantsi, ukumelana nokugqwala (CO2), ukumelana namanzi olwandle kunye ne-HIC, ukusebenza kwe-SSCC, njl.

①Amandla aphezulu

Intsimbi yombhobho ayifuni kuphela amandla aphezulu kunye namandla esivuno, kodwa ifuna ukuba umlinganiselo wesivuno ube kuluhlu lwe-0.85 ~ 0.93.

② Ukuqina kwempembelelo ephezulu

ukuqina kwempembelelo ephezulu kunokuhlangabezana neemfuno zokuthintela ukuqhekeka.

③Ubushushu obuphantsi be-ductile-brittle transition

Imimandla erhabaxa kunye neemeko zemozulu zifuna intsimbi yombhobho ukuba ibe neqondo lobushushu eliphantsi ngokwaneleyo le-ductile-brittle transition.Indawo yokucheba ye-DWTT (i-Drop Weight Tear Test) ibe sesona salathisi solawulo lokuthintela ukusilela kwemibhobho. indawo yokucheba yesampulu ibe yi-≥85% kwelona qondo lisezantsi lobushushu lokusebenza.

④Ukuchasana okugqwesileyo kwi-hydrogen-induced cracking (HIC) kunye ne-sulfide stress corrosion cracking (SSCC)

⑤ Ukusebenza kakuhle kwe-welding

Ukuwelda okulungileyo kwentsimbi kubaluleke kakhulu ukuqinisekisa ingqibelelo kunye nomgangatho wokuwelda wombhobho.

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

ImiGangatho yentsimbi yePipeline

Okwangoku, imigangatho ephambili yobugcisa beepayipi zensimbi zeoli kunye negesi ezisetyenziswa kwilizwe lam zibandakanyaAPI 5L, DNV-OS-F101, ISO 3183, kunye ne-GB/T 9711, njl. Imeko eqhelekileyo ngolu hlobo lulandelayo:

① I-API 5L (inkcazo yombhobho womgca) luphawu olwamkelwa ngokubanzi oluqulunqwe yiMaine Petroleum Institute.

② I-DNV-OS-F101 (inkqubo yemibhobho engaphantsi kolwandle) yinkcazo eyenziwe ngokukodwa yiDet Norske Veritas kwimibhobho engaphantsi kolwandle.

③ I-ISO 3183 ngumgangatho owenziwe nguMbutho waMazwe ngaMazwe wokuMiswa kweMigangatho kwiimeko zokuhanjiswa kwemibhobho yentsimbi yokuhanjiswa kwe-oyile kunye negesi.Lo mgangatho awubandakanyi uyilo lombhobho kunye nofakelo.

④ Inguqulelo yamva nje ye-GB/T 9711 yinguqulo ye-2017. Le nguqulo isekelwe kwi-ISO 3183: 2012 kunye ne-API Spec 5L 45th Edition.ngokusekelwe kuzo zombini.Ngokuhambelana nemigangatho emibini ekhankanyiweyo, amanqanaba amabini okucaciswa kwemveliso acacisiwe: PSL1 kunye ne-PSL2.PSL1 inika umgangatho osemgangathweni wombhobho womgca;I-PSL2 yongeza iimfuno ezigunyazisiweyo ezibandakanya ukubunjwa kweekhemikhali, ukuqina kwenotshi, iipropati zamandla kunye novavanyo olongezelelweyo olungonakalisi (NDT).

I-API SPEC 5L kunye ne-ISO 3183 ziinkcukacha zemibhobho yomgca enempembelelo kumazwe ngamazwe.Ngokwahlukileyo koko, uninzi lweenkampani zeoyile emhlabeni ziqhele ukwamkelaIimpawu ze-API SPEC 5L njengenkcazo esisiseko yokuthengwa kwepayipi yentsimbi yombhobho.

Ukuhlolwa kombhobho we-LSAW
ukuhlolwa kombhobho wentsimbi

Ulwazi lweodolo

Ikhontrakthi yomyalelo wentsimbi yombhobho kufuneka ibandakanye ulwazi olulandelayo:

① Ubungakanani (bonke ubunzima okanye ubuninzi obupheleleyo bemibhobho yentsimbi);

② Inqanaba eliqhelekileyo (PSL1 okanye PSL2);

Umbhobho wentsimbiuhlobo (umthungo okanyeumbhobho odityanisiweyo, inkqubo ye-welding ethile, uhlobo lokuphela kombhobho);

④Ngokusekelwe kwimigangatho, efana ne-GB/T 9711-2017;

⑤ ibakala lentsimbi;

⑥Idayimitha yangaphandle kunye nobunzima bodonga;

⑦ Ubude kunye nohlobo lobude (okunganqunywanga okanye ukusika);

⑧ Qinisekisa imfuneko yokusebenzisa isihlomelo.

Amabakala emibhobho yentsimbi kunye namabakala entsimbi (GB/T 9711-2017)

Ileveli yentsimbi eqhelekileyo ibakala lombhobho wentsimbi ibakala lentsimbi
PSL1 L175 A25
I-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
I-L320N X46N
I-L360N X52N
L390N X56N
I-L415N X60N
I-L245Q BQ
L290Q X42Q
I-L320Q X46Q
I-L360Q X52Q
I-L390Q X56Q
I-L415Q X60Q
I-L450Q X65Q
I-L485Q X70Q
I-L555Q X80Q
I-L625Q X90Q
L690Q X100M
I-L245M BM
L290M X42M
I-L320M X46M
I-L360M X52M
I-L390M X56M
I-L415M X60M
I-L450M X65M
I-L485M X70M
I-L555M X80M
I-L625M X90M
L690M X100M
L830M X120M

 

 


Ixesha lokuposa: Jan-30-2023

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