API 5L X60 (L415) LSAW Bututun Karfe: Ƙarfin Masana'antu & Bayanin Samfura

Me yasa Womic Steel don X60 LSAW?

●Tsaruka guda uku masu dacewa (JCOE, UOE, farantin da aka naɗe) waɗanda suka rufe diamita 219–1,600mm

●Tsarin UOE yana isar da ±0.2% zagaye na OD - yana da mahimmanci don walda filin atomatik na layukan bututun gas

●Ƙarfin bango mai kauri har zuwa 70mm (dinki ɗaya) ko 80mm (dinki biyu)

●Ƙarfin tanderun PWHT: tsawon mita 12 × diamita mita 3

●Gwajin tasirin ƙananan zafin jiki zuwa -46°C da -60°C (matsayin Arctic X60)

●An ba da takardar shaidar ingancin sabis mai tsami tare da gwajin HIC/SSC (NACE TM0284, TM0177)

●API 5L Monogram + CE + dubawa na ɓangare na uku (SGS, BV, TÜV, DNV, ABS, LR)

●Saurin juyawa: Kwanaki 35-50 don daidaitaccen X60 PSL1, kwanaki 50-70 don sabis ɗin tsami na PSL2

●Tsawon tsayi har zuwa mita 24 yana rage yawan walda a cikin filin da kashi 30-40%

●Sama da kilomita 1,500 na bututun X60 da ake samarwa a duk duniya ba tare da wata matsala ba

Tambayoyin da Ake Yawan Yi:

T: Me yasa za a zaɓi X60 maimakon X52 don bututun iskar gas?
A: X60 yana ba da ƙarfin yawan amfanin ƙasa mafi girma da kashi 15% (415 MPa vs 360 MPa), wanda ke ba da damar ganuwar da suka yi sirara (yawanci rage 10-15%) don ƙimar matsin lamba iri ɗaya. Wannan yana rage nauyi da farashi, musamman ga bututun mai nisa. Duk da haka, X60 yana buƙatar tsauraran hanyoyin walda kuma yana da sauƙin kamuwa da fashewar hydrogen. Ga matsin lamba ƙasa da 10 MPa, X52 sau da yawa ya fi rahusa. Ga matsin lamba sama da 12 MPa, ana ba da shawarar X60 ko X65.

T: Menene bambanci tsakanin X60 PSL1 da PSL2?
A: PSL2 yana da ƙa'idodi masu tsauri na sinadarai (musamman ƙananan C, P, S), gwajin tasirin Charpy (27J @ 0°C ko ƙasa da haka), matsakaicin tauri 90 HRB, kuma yana buƙatar 100% UT na dinkin walda (PSL1 yana buƙatar tabo UT kawai). Ga layukan bututun iskar gas da ke aiki a wuraren da jama'a ke zaune ko ƙarancin zafi, sau da yawa ana ƙayyade PSL2.

T: Za ku iya samar da takardar shaidar sabis mai tsami ta X60?
A: Eh. Muna bayar da X60 PSL2 tare da gwajin HIC (NACE TM0284) da gwajin SSC (NACE TM0177). Karɓar da aka saba samu: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5% ga HIC. Ana amfani da PWHT ga duk wani aikin tsami X60 ba tare da la'akari da kauri na bango ba don tabbatar da tauri ≤ 85 HRB. Mun samar da aikin tsami X60 ga ayyukan Gabas ta Tsakiya da Kudu maso Gabashin Asiya.

T: Wane gwajin tasirin zafi mai ƙarancin zafi za ku iya yi wa bututun X60 arctic?
A: Za mu iya gwadawa har zuwa -60°C. Bututun iskar gas na arctic na yau da kullun suna buƙatar tasirin Charpy na 27J mafi ƙarancin a -46°C. Womic yawanci yana kaiwa 80-120J a -46°C. Don sarrafa yaduwar karyewa, muna kuma yin DWTT a -20°C tare da mafi ƙarancin yankin yankewa na 85%. Da fatan za a ƙayyade zafin gwajin da ake buƙata da kuzari.

T: Wanne tsari ne ya fi dacewa da bututun X60 na ƙasashen waje - JCOE ko UOE?
A: An fi son UOE a ƙasashen waje saboda yana samar da kyakkyawan zagaye (±0.2% vs ±0.5% ga JCOE) da kuma ƙarancin matsin lamba. Wannan yana da mahimmanci don jure matsin lamba na hydrostatic na waje (rushewa) da kuma ingantaccen walda a kan tasoshin da aka shimfiɗa. UOE kuma yana ba da ingantaccen aiki na gajiya ga masu tashi da ƙarfi. Ga ruwa mai zurfi (<100m) a bakin teku kusa da teku, JCOE abin karɓa ne.

T: Menene lokacin jagora na yau da kullun don bututun X60 LSAW?
A: Lokacin jagora na yau da kullun don X60 PSL1: kwanaki 35-50. Don X60 PSL2 tare da gwajin sabis mai tsami da PWHT: kwanaki 50-70. Umarnin gaggawa (kwana 25-35) yana yiwuwa ga ƙananan adadi (< tan 1,000) idan farantin yana cikin kaya. Ga manyan oda (> tan 20,000), lokacin jagora na iya tsawaita zuwa kwanaki 90.

T: Shin kuna ba da duba bututun X60 LSAW na ɓangare na uku?
A: Eh. Muna aiki da SGS, BV, TÜV, DNV, ABS, da LR. Ana iya yin bincike a masana'antarmu yayin samarwa, wanda wakilin abokin ciniki ya shaida. Muna bayar da takaddun shaida na EN 10204 Type 3.2 idan an buƙata.

Nassoshin Aiki - Layin Gas na Gas na Yankin Kudu maso Gabashin Asiya

Ƙasa:Yankin kan iyaka tsakanin Myanmar da Thailand (bututun iskar gas daga Tekun Martaban zuwa Thailand)
Daidaitacce & Matsayi:API 5L X60 PSL2 (sabis mai tsami, tare da gwajin HIC da SSC)
Girma da Adadi:

●OD 813mm (32″) × WT 19.0mm – mita 36,000 (kimanin tan 12,600) wanda aka ƙera ta hanyar tsarin UOE

●OD 813mm (32″) × WT 22.0mm – mita 8,000 (kimanin tan 3,200) wanda tsarin UOE ya ƙera (bango mai kauri don ketare hanya/layin dogo)

●OD 610mm (24″) × WT 15.9mm – mita 12,000 (kimanin tan 2,400) wanda tsarin JCOE ya ƙera (layin reshe zuwa tashar wutar lantarki)
Jimilla:Mita 56,000 (kilomita 56), kimanin tan 18,200

Bayani dalla-dalla:Rufin 3LPE na waje (jimlar kauri 3.0mm) bisa ga ISO 21809, ƙarshen da aka yanke 30° / 1.6mm fuskar tushen tare da kariya ta bevel na ciki, gwajin hydro a 15.0 MPa (matsin lamba na ƙira 11.5 MPa). Tasirin Charpy da ake buƙata a 0°C da -20°C (minti 27J, an cimma 90-140J). HIC ga NACE TM0284 Magani A, awanni 96 – karɓa: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%. SSC ga NACE TM0177 Hanyar A, awanni 720 – babu izinin tsagewa. An yi amfani da PWHT ga duk bututun da ke da WT ≥ 19.0mm. UT mai sarrafa kansa 100% tare da TOFD don dinkin walda. Gwajin rediyo (RT) don samfuran cancantar walda na filin.

Aikace-aikace:Layin bututun iskar gas na ƙasa mai iyaka yana jigilar iskar gas daga filayen teku a Tekun Martakan (Myanmar) zuwa tashar karɓar iskar gas a Thailand, sannan ya wuce zuwa tashar samar da wutar lantarki da ake amfani da iskar gas. Sashen da ke kan teku mai tsawon kilomita 56 ya ratsa tsaunukan dazuzzuka tare da manyan canje-canje a tsayi (har zuwa mita 400), tare da manyan hanyoyin ketare hanya guda shida da kuma hanyoyin ketare layin dogo guda uku.

Kalubalen Fasaha da Magani:

●Tsarin aiki mai tsami don amfani da iskar gas tare da alamar H₂S– Iskar gas ɗin ta ƙunshi 5-10 ppm H₂S a zafin aiki na 55°C. Womic ta yi gwajin HIC da SSC a wurare 12 na samarwa. Duk sun wuce da CLR 0%, CTR 0%, CSR 0% don HIC. Gwajin SSC (NACE TM0177, 720h) bai nuna fashewar saman ba. Mun cimma wannan ta hanyar kiyaye CEV ≤ 0.38%, amfani da PWHT ga dukkan bututun WT 19.0mm da 22.0mm (duk da cewa API 5L ba ya buƙatar PWHT ƙasa da 25.4mm), da kuma sarrafa shigar da zafi na walda zuwa ≤ 2.8 kJ/mm. Mai duba abokin ciniki (BV) ya shaida duk gwaji kuma ya tabbatar da sakamakon.

●Ƙasa mai tsayi mai lanƙwasawa– Hanyar bututun ta haɗa da gangara har zuwa digiri 25. Lanƙwasa bututun X60 a fili ya fi ƙalubale fiye da ƙananan matakai saboda ƙarfi mai girma. Womic ta samar da bututun da ke da haɗin gwiwa guda ɗaya mai tsayi (mita 18 maimakon mita 12 na yau da kullun) don rage adadin lanƙwasa filin da kashi 33%. Mun kuma samar da wani tsari na musamman na bevel (bevel mai haɗawa) wanda ya ba da damar daidaitawa ±3° yayin walda filin ba tare da lalata ingancin walda ba. An riƙe ovality zuwa ≤ 0.3% (tsarin UOE) don tabbatar da daidaiton da ya dace a kan gangara.

●Ingancin rufin 3LPE a cikin yanayin daji– Yawan zafi (kashi 80-95% a duk shekara) da kuma ƙasa mai laushi ta laterite suna haifar da haɗarin rufewa. An yi amfani da murfin 3LPE tare da ƙarin layin hadaya na 0.3mm. Mun yi gwajin gano ɓawon a 100% a 7kV (daidaitaccen 5kV) kuma mun auna ƙarfin bawon a 25°C da 70°C (kashi 230 N/cm a 25°C, 160 N/cm a 70°C). An yi amfani da murfin a gwajin raba cathodic (kimanin radius 8mm a 65°C, kwanaki 28).

●Jigilar kaya ta kan iyakoki tare da sarkakiyar kwastam– An jigilar bututu daga Shanghai zuwa tashar jiragen ruwa ta Yangon (Myanmar), sannan aka yi jigilar manyan motoci kilomita 280 zuwa bututun da ke kusa da kan iyakar Thailand. Hanyar ta ratsa ta wuraren binciken kwastam guda biyu. Womic ta shirya takardu na musamman na ƙasa (Takardar Shaidar Asali daga AK, a duk faɗin ASEAN). Mun kuma shirya takardun shigo da kaya na ɗan lokaci don guje wa jinkirin biyan haraji. Duk kwastam ɗin da aka amince da su tan 18,200 cikin kwanaki 5.

●Tsarin shigarwar zafi mai ƙarfi na walda don X60– HAZ na X60 yana da saurin kamuwa da zafi mai yawa, wanda zai iya haifar da laushi da rage tauri. Womic ta yi amfani da tsarin SAW mai waya biyu tare da sa ido kan shigar zafi a kowace hanyar walda. Matsakaicin shigar zafi don walda ta ciki: 2.2 kJ/mm, walda ta waje: 2.5 kJ/mm (ƙasa da iyakar 3.5 kJ/mm). An kiyaye zafin interpass ƙasa da 200°C. Taurin haɗin gwiwa bayan PWHT: ƙarfe mai tushe 78-82 HRB, walda 82-86 HRB, HAZ 80-84 HRB - duk a cikin iyakar 90 HRB.

● Sakamako:An ƙaddamar da aikin bututun iskar gas a kwata na uku na shekarar 2024. Duk bututun X60 PSL2 mai tsawon kilomita 56 sun wuce binciken ɓangare na uku daga BV Myanmar. Abokin ciniki ya ba da rahoton babu wata matsala ta walda yayin walda a cikin rami (sama da walda girth 4,600). Bututun yana aiki a 10.5-11.0 MPa tsawon watanni 12 ba tare da ya zube ko lalacewar rufin ba. Womic Steel ta sami kyautar "Mai Kaya na Shekara" daga ɗan kwangilar EPC na Thailand don isar da kaya akan lokaci (duk tan 18,200 da aka kawo cikin kwanaki 68) da kuma ingantaccen aiki.

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Womic Steel – Abokin hulɗarka mai aminci ga bututun API 5L X60 LSAW don layukan bututun iskar gas mai matsin lamba, bututun ruwa na teku, sabis mai tsami, da aikace-aikacen arctic a duk duniya.