Chitoliro cha Chitsulo cha API 5L X52 LSAW: Luso Lopanga & Zofotokozera Zamalonda

Chifukwa chiyani Womic Steel ya X52 LSAW?

● Njira zitatu zowonjezera (JCOE, UOE, mbale yozungulira) zophimba mainchesi 219–1,600mm

● Mphamvu yolimba ya khoma mpaka 70mm (msoko umodzi) kapena 80mm (msoko wawiri) woti ugwiritsidwe ntchito poika jekeseni wopanikizika kwambiri komanso poika zinthu zozungulira.

● Mphamvu ya ng'anjo ya PWHT: kutalika kwa 12m × 3m m'mimba mwake, kuphatikiza kutentha kwa induction kwa mapaipi ataliatali

● Kuyesa kutentha kochepa mpaka -60°C (arctic grade X52)

● Utumiki wa sour wovomerezeka ndi mayeso a HIC/SSC (NACE TM0284, TM0177)

● API 5L Monogram + CE + kuyang'anira kwa chipani chachitatu (SGS, BV, TÜV, DNV, ABS, LR)

● Kubwerera mwachangu: Masiku 30-45 a ntchito yachizolowezi ya X52 PSL1, masiku 45-60 a ntchito ya PSL2 sour

● Kutalika kwakutali mpaka mamita 24 kumachepetsa ma weld a munda ndi 30-40% (nthawi zambiri mamita 12 vs 18 vs 24m)

● Kulondola kwathunthu kuchokera pa nambala ya kutentha kwa mbale kupita ku chitoliro chomalizidwa (nambala ya kutentha yosindikizidwa pa chitoliro chilichonse)

● Mapaipi a X52 opitilira makilomita 3,000 aperekedwa padziko lonse lapansi popanda vuto lililonse pa ntchito

Mafunso Ofunsidwa Kawirikawiri:

Q: Kodi kusiyana kwakukulu pakati pa X52 PSL1 ndi PSL2 pa chitoliro cha LSAW ndi kotani?
A: PSL2 ili ndi malire okhwima a kapangidwe ka mankhwala (C, P, S yotsika), kulimba kwa Charpy (27J osachepera @ 0°C kapena kutsika), malire okhwima kwambiri (90 HRB), ndipo imafuna NDT yolimba kwambiri (100% UT poyerekeza ndi malo a UT a PSL1). Pa mapaipi a gasi opanikizika kwambiri, ntchito ya m'mphepete mwa nyanja, kapena yowuma, PSL2 ndi yofunikira. Pa mizere yamadzi kapena mafuta opanikizika pang'ono, PSL1 ndi yovomerezeka komanso yotsika mtengo.

Q: Kodi mungapereke mayeso a X52 ochepetsa kutentha kwa mapulojekiti a arctic?
A: Inde. Timapereka X52 PSL2 yokhala ndi Charpy impact testing pa -46°C (min 27J) ndi DWTT pa -20°C (min 85% shear area). Tapereka arctic grade X52 ku mapulojekiti aku Canada ndi Russia. Chonde tchulani kutentha ndi mphamvu zomwe zimafunika poyesa mukafunsa.

Q: Kodi makulidwe a khoma omwe mungapange pa X52 LSAW ndi otani?
A: Njira ya JCOE yoposa 50.8mm, njira ya UOE yoposa 40mm, msoko umodzi wopindidwa mpaka 70mm, msoko wachiwiri wopindidwa mpaka 80mm. Kuti khoma likhale lolimba kuposa 50.8mm, PWHT ndi yofunikira. Posachedwapa tapereka X52 1,600mm OD × 70mm WT pa ntchito yothira madzi amphamvu kwambiri ku Oman.

Q: Kodi mumalamulira bwanji kuuma kwa ntchito ya sour ya X52?
A: Timalamulira kapangidwe ka mankhwala (CEV ≤ 0.40% pa ntchito yowawasa, yochepera 0.43%), timalamulira kutentha komwe kumalowa panthawi yowotcherera SAW (≤ 3.0 kJ/mm), ndikuyika PWHT pa makulidwe a khoma ≥ 20mm. Kulimba pambuyo pa PWHT nthawi zambiri kumakhala 78-85 HRB pazitsulo zoyambira ndi 82-88 HRB pa weld. Timapereka zikalata zonse zotsimikizira kuuma.

Q: Kodi mumayang'anira mapaipi a X52 LSAW kwa anthu ena?
A: Inde. Timagwira ntchito ndi SGS, BV, TÜV, DNV, ABS, ndi LR. Kuwunikaku kungachitike ku fakitale yathu panthawi yopanga, ndipo woimira kasitomala kapena bungwe lachitatu likuwona. Timapereka satifiketi ya EN 10204 Type 3.2 ngati tipempha.

Q: Kodi nthawi yogwiritsira ntchito chitoliro cha X52 LSAW ndi yotani?
A: Nthawi yokhazikika yoperekera chithandizo: Masiku 30-45 a PSL1, Masiku 45-60 a PSL2 yokhala ndi mayeso a service sour. Maoda ofulumira (masiku 20-30) ndizotheka pazakudya zochepa (<500 matani). Pamaoda akuluakulu kwambiri (>10,000 matani), nthawi yoperekera chithandizo ikhoza kupitirira masiku 75 kutengera kupezeka kwa mbale.

Q: Kodi mungapereke X52 ndi chophimba cha 3LPE ndi chophimba cholemera cha konkire cha mapaipi akunja?
A: Inde. Timapereka chophimba cha 3LPE pa ISO 21809 (kukhuthala konse kwa 2.5-3.5mm) ndipo timatha kugwirizanitsa chophimba cha simenti (kukhuthala kwa 40-120mm, kukhuthala kwa 2,400-3,050 kg/m³) ku bwalo lathu lothandizirana la chophimba ku Tianjin. Tapereka chophimba cha X52 chopangidwa ndi gombe ku Vietnam, Indonesia, ndi Middle East.

Chitsimikizo cha Pulojekiti - Paipi Yotumiza Mafuta Osakonzedwa ku East Africa

Dziko:Uganda / Tanzania (Paipi ya Mafuta Osaphwanyidwa ku East Africa – EACOP)
Muyezo ndi Giredi:API 5L X52 PSL2 (utumiki wovuta, wokhala ndi mayeso a HIC ndi SSC)
Miyeso ndi Kuchuluka:

● OD 610mm (24″) × WIT 12.7mm – 48,000 meters (pafupifupi matani 7,200) yopangidwa ndi njira ya UOE

● OD 610mm (24″) × Kulemera 15.9mm – 12,000 mamita (pafupifupi matani 2,400) yopangidwa ndi njira ya UOE (khoma lolimba la malo owolokera mitsinje)

● OD 914mm (36″) × WIT 19.0mm – 8,500 metres (pafupifupi matani 3,400) yopangidwa ndi njira ya JCOE ya mizere yodutsa malo opopera
Zonse:Mamita 68,500 (68.5 km), pafupifupi matani 13,000

Mafotokozedwe:Chophimba chakunja cha 3LPE (kukhuthala konse kwa 3.0mm) pa ISO 21809, malekezero opindika 30° / 1.6mm mizu, hydrotest pa 11.5 MPa (kupanikizika kwa kapangidwe kake ndi 8.5 MPa). Kufunika kwa Charpy impact pa 0°C (min 27J, kufika pa 85-120J). HIC pa NACE TM0284 Yankho A, 96h - kuvomereza: CLR ≤ 5%, CTR ≤ 1.5%, CSR ≤ 0.5%. SSC pa NACE TM0177 Njira A, 720h - palibe kusweka komwe kumaloledwa. PWHT imagwiritsidwa ntchito pamapaipi onse okhala ndi WT ≥ 15.9mm.

Ntchito:Paipi yotumizira mafuta osakonzedwa kuchokera ku Uganda (chigawo cha Hoima) kupita ku doko la Tanga ku Tanzania pa Nyanja ya Indian. Utali wonse wa paipi ndi 1,443 km. Womic Steel idapereka 68.5 km ya zonse, kuphatikiza magawo kudzera m'malo obisika a nyama zakuthengo komanso malo akuluakulu odutsa mitsinje.

Mavuto ndi Mayankho a Ukadaulo:

● Kutsatira malamulo okhudza mafuta osakonzedwa bwino okhala ndi H₂S– Mpweya wopanda mafuta wochokera ku Uganda uli ndi H₂S yosungunuka mpaka 15 ppm yokhala ndi madzi okwanira. Kuyesa kolimba kwa HIC ndi SSC kunafunika. Womic adachita mayeso oyenerera pa malo 15 opangira. Onse adapambana ndi CLR 0%, CTR 0%, CSR 0% ya HIC. Kuyesa kwa SSC (NACE TM0177, 720h) sikunawonetse kusweka kwa pamwamba. Tinakwaniritsa izi mwa kusunga CEV ≤ 0.38% (yochepera malire a PSL2 a 0.43%) ndikugwiritsa ntchito PWHT pamapaipi onse opitilira 12.7mm WT, ngakhale API 5L silamula PWHT pansi pa 25.4mm. Woyang'anira kasitomala (SGS) adawona mayeso onse.

● Zoletsa zachilengedwe m'dera la nyama zakuthengo– Paipi imadutsa m'malo awiri osungira nyama zakuthengo mdziko lonse. Kuwonongeka kwa chophimba panthawi yoyika kungakhale kovuta kukonza chifukwa cha kulephera kulowa. Womic anaika polyethylene wosanjikiza (wowonjezera 0.5mm pamwamba pa 3LPE yokhazikika) ngati chophimba cholimba. Tinachitanso 100% kuzindikira nthawi yopuma pa 7kV (yokhazikika ndi 5kV) kuti titsimikizire kuti palibe nthawi yopuma yophimba. Mphamvu yochotsa chophimba inayesedwa pa 250 N/cm pa 25°C, 150 N/cm pa 70°C.

● Malo owolokera mtsinje omwe amafuna khoma lolimba– Mabowo asanu akuluakulu odutsa mitsinje (mitsinje ya Nile) amafunika kulemera kwa 15.9mm m'malo mwa 12.7mm kuti awonjezere kukana kugwa ndi kupindika panthawi yokhazikitsa sagbend. Pa mapaipi okhuthala a khoma awa, tidagwiritsa ntchito njira ya UOE kuti tipeze kuzungulira bwino (± 0.2% OD) kuti tiwonetsetse kuti field girth welding yodalirika m'magawo odutsa. Kuchuluka kwa oval kunayesedwa pa 0.15-0.18%, pansi pa malire a 0.5%.

● Kukonza zinthu pamtunda wautali– Mapaipi anatumizidwa kuchokera ku Shanghai kupita ku doko la Dar es Salaam (Tanzania), kenako ananyamula magalimoto akuluakulu 1,200 km kupita ku Uganda. Misewu kumadzulo kwa Tanzania imaphatikizapo magawo opanda miyala. Womic adapanga dongosolo lapadera lotumizira: kutalika kwa 12m kokha (osalumikiza 18m pagawo la Uganda) kuti agwirizane ndi magalimoto wamba okhala ndi matabwa. Chitoliro chilichonse chinali chomangiriridwa ndi zingwe zomangira. Tinapereka zithunzi zonyamulira katundu ndi maphunziro kwa kampani ya magalimoto akuluakulu am'deralo. Mapaipi onse sanawonongeke panthawi yoyenda pamtunda wa 1,200 km.

● Zolemba zokhwima komanso kutsatirika bwino– Pulojekitiyi inkafuna satifiketi ya EN 10204 Type 3.2 pa nambala iliyonse ya kutentha, yokhala ndi kutsata kwathunthu kuchokera pa mbale kupita ku chitoliro chomalizidwa. Womic adapatsa wowongolera zikalata wodzipereka yemwe amatsata mapaipi onse a 68.5 km. Chitoliro chilichonse chidasindikizidwa ndi nambala ya kutentha, nambala ya chitoliro, ndi ma GPS coordinates a kupanga. Gulu la QA la kasitomala lidayang'ana malo athu kawiri panthawi yopanga; ma audit onse awiri adadutsa popanda kuphwanya malamulo.

Zotsatira:Paipi ya Mafuta Osaphwanyidwa a East Africa (EACOP) ikukonzekera kumalizidwa mu kotala lachiwiri la 2025. Mapaipi a X52 PSL2 okwana matani 13,000 a Womic Steel adatumizidwa kwa miyezi 8 (kutumizidwa koyamba mu Okutobala 2023, kutumiza komaliza mu Meyi 2024). Mapaipi onse adavomerezedwa ndi SGS Tanzania ndi gulu lachitatu. Kasitomala (gulu la makampani apadziko lonse lapansi amafuta) adapereka kalata yoyamikira chifukwa cha kuwongolera khalidwe la Womic komanso kutumiza pa nthawi yake. Womic tsopano ndi kampani yoyenerera kale ntchito yokulitsa mapaipi mtsogolo m'derali.

Lumikizanani nafe:
Webusaiti: www.womicsteel.com
Imelo: sales@womicsteel.com

Foni / WhatsApp / WeChat:
Victor: +86 15575100681
Jack: +86 18390957568

Womic Steel – Mnzanu wodalirika wa mapaipi a API 5L X52 LSAW a mafuta ndi gasi amphamvu kwambiri, ntchito yonyowa, mapaipi a arctic, ndi ntchito za m'mphepete mwa nyanja padziko lonse lapansi.