Chitoliro cha Chitsulo cha API 5L X70 LSAW: Mphamvu Zopangira & Zofotokozera Zamalonda

Chifukwa chiyani Womic Steel ya X70 LSAW?

● Njira ya UOE imapereka kuzungulira kwa ±0.15% OD - ndikofunikira kwambiri kuti X70 isagwe kwambiri

● Ma plates apamwamba a TMCP okhala ndi CEV ≤ 0.40% (nthawi zambiri 0.35-0.38%) kuti azitha kusungunula bwino

● Kutentha kochepa kufika pa -60°C (CTOD ikupezeka)

● Wovomerezeka ndi ntchito ya sour service (HIC, SSC) yokhala ndi ng'anjo ya PWHT yokhala ndi kutalika kwa 12m

● API 5L Monogram + DNV yovomerezeka kuti igwiritsidwe ntchito kunja kwa dziko

● Mapaipi a X70 opitilira 800 km aperekedwa popanda kulephera kulikonse pa ntchito

● Kutsata kwathunthu ndi kutsatira RFID

Mafunso Ofunsidwa Kawirikawiri:

Q: N’chifukwa chiyani mungasankhe X70 kuposa X65 pa payipi ya gasi yoyenda mtunda wautali?
A: X70 imapereka mphamvu yokwera ndi 8% (485 vs 450 MPa), zomwe zimathandiza kuchepetsa makulidwe a khoma pafupifupi 10-12% pa mphamvu yomweyo. Pa payipi ya 1,000 km, izi zitha kusunga matani 50,000-80,000 achitsulo, zomwe zimachepetsa kwambiri mtengo wa zinthu ndi mpweya woipa. Komabe, X70 imafuna mbale za TMCP zodula kwambiri, kuwongolera kolimba kwa kuwotcherera, komanso ndalama zambiri zowunikira. Malo ogwirira ntchito nthawi zambiri amakhala pafupifupi 500-800 km. Pa mapaipi afupiafupi, X65 ndi yotsika mtengo kwambiri.

Q: Kodi X70 ndi yovuta kwambiri kuiwotcherera m'munda kuposa X65?
A: Inde. X70 ili ndi kaboni wofanana ndi wa kaboni wambiri (CEV 0.38-0.43% poyerekeza ndi X65 0.35-0.40%) ndipo imakhudzidwa kwambiri ndi kusweka kwa haidrojeni. Kuwotcherera m'munda kumafuna kutenthetsa (nthawi zambiri 100-150°C pa X70 poyerekeza ndi 75-100°C pa X65) komanso kuwongolera kutentha ndi kutentha kwa interpass. Komabe, pogwiritsa ntchito njira zowotcherera zoyenerera (WPS) ndi akatswiri odziwa bwino ntchito, X70 imatha kuwotcherera modalirika. Womic imapereka malangizo ogwiritsira ntchito kuwotcherera ndipo imatha kupereka makuponi oyenerera.

Q: Kodi X70 ingagwiritsidwe ntchito popereka chithandizo cha sour (H₂S)?
A: Inde, koma pakufunika njira zina zowonjezera: CEV ≤ 0.38% (makamaka ≤ 0.36%), PWHT ya makulidwe onse a khoma, kuuma ≤ 85 HRB, HIC ndi mayeso a SSC. Womic yapereka chithandizo cha sour X70 kumapulojekiti okhala ndi H₂S mpaka 50 ppm. Dziwani kuti X70 imakhudzidwa kwambiri ndi H₂S kuposa X65 kapena X60, kotero ogwiritsa ntchito ambiri amakondabe X65 ya malo okhala ndi H₂S yapamwamba.

Q: Kodi makulidwe a khoma lalikulu kwambiri la chitoliro cha X70 LSAW ndi otani?
A: JCOE/UOE ndi 50.8mm, msoko umodzi wa mbale yopindidwa mpaka 70mm. Pa makulidwe a khoma > 40mm, zida za UOE zimakhala zochepa, ndipo mbale yopindidwa ndiyo yabwino. Posachedwapa tapereka X70 914mm OD × 60mm WT ya payipi ya CO₂ yothamanga kwambiri (pulojekiti ya CCS).

Q: Ndi mayeso otani a kulimba kwa kusweka omwe amafunikira pa X70?
A: API 5L imafuna mayeso a Charpy V-Notch (27J min) koma mapulojekiti ambiri amatchula zinthu zapamwamba (monga 100J pa -20°C). DWTT imafunika kuti pakhale kufalikira kwa mabala (malo odulidwa ≥ 85% kutentha koyesedwa). Pa mapaipi akunja kapena a arctic, mayeso a CTOD (≥ 0.25mm pa -20°C kapena -46°C) nthawi zambiri amawonjezeredwa. Womic amachita mayeso onsewa mkati kapena kudzera m'ma laboratories ovomerezeka a chipani chachitatu.

Q: Kodi nthawi yogwiritsira ntchito chitoliro cha X70 LSAW ndi yotani?
A: X70 imafuna mbale za TMCP zomwe zimakhala ndi nthawi yayitali yoperekera katundu (masabata 8-12 kuchokera ku mphero). Nthawi yonse yoperekera katundu: Masiku 70-100 kuchokera ku oda mpaka kutumiza kwa FOB. Maoda ofulumira (masiku 45-60) ndizotheka ngati mbale zilipo.

Q: Kodi X70 imafuna PWHT pa ntchito yosavulaza?
A: API 5L siilamula PWHT ya X70 yochepera 50.8mm WT. Komabe, ogwiritsa ntchito ambiri amagwiritsa ntchito PWHT pa mapaipi a X70 mosasamala kanthu za makulidwe a khoma kuti achepetse kupsinjika kotsalira ndikuwonetsetsa kuti HAZ ndi yolimba. Womic imatha kupereka PWHT ikapemphedwa (ndalama zowonjezera ndi nthawi yotsogolera).

Chitsimikizo cha Pulojekiti - Mzere wa Gasi Wachilengedwe wa Kutali ku Central Asia

Dziko:Malire a Uzbekistan - Tajikistan - China (gawo la Central Asia-China Gas Pipeline)
Muyezo ndi Giredi:API 5L X70 PSL2 (yosawawa, koma yokhala ndi zofunikira kutentha kochepa)
Miyeso ndi Kuchuluka:

● OD 1,219mm (48″) × WIT 19.0mm – 85,000 meters (pafupifupi matani 48,500) yopangidwa ndi njira ya UOE

● OD 1,219mm (48″) × WIT 22.2mm – 15,000 metres (pafupifupi matani 9,500) yopangidwa ndi njira ya UOE (khoma lolimba la malo odutsa mapiri ndi malo olakwika)

● OD 1,016mm (40″) × WIT 17.5mm – 40,000 meters (pafupifupi matani 17,800) yopangidwa ndi njira ya JCOE (mzere wa nthambi)
Zonse:Mamita 140,000 (140 km), pafupifupi matani 75,800

Mafotokozedwe:Chophimba chakunja cha 3LPE (chonse cha 3.0mm), malekezero opindika 30°/1.6mm, hydrotest pa 19.5 MPa (kupanikizika kwa kapangidwe ka 15.0 MPa). Kufunika kwa Charpy impact pa -20°C (osachepera 80J, kufika 150-220J) ndi pa -46°C (osachepera 50J, kufika 100-160J). DWTT pa -20°C: malo odulira ≥ 85% pa chitoliro cha chitoliro, ≥ 70% pa weld. Thupi lonse UT (100% ya voliyumu ya chitoliro, osati msoko wokha). Kuyang'aniridwa ndi chipani chachitatu ndi TÜV Rheinland panthawi yonse yopanga. DNV idawona mayeso a hydrostatic pa 10% ya kupanga.

Ntchito:Kukulitsa kwa Paipi ya Gasi ya Central Asia-China (Mzere D), kunyamula gasi wachilengedwe kuchokera ku minda ya gasi ku Uzbekistan kudzera ku Tajikistan kupita kumalire a China. Kutalika konse kwa mzere wowonjezera uwu: 140 km. Paipi imadutsa m'mapiri a mapiri a Pamir, kuphatikizapo madera anayi ogwira ntchito okhudzidwa ndi zivomerezi, malo atatu akuluakulu odutsa mitsinje, ndi kusintha kwa kutalika kuchokera pa 400m mpaka 2,800m.

Mavuto ndi Mayankho a Ukadaulo:

● Kusinthasintha kwakukulu kwa kutentha ndi mtunda– Kukwera kwa mapaipi kumasiyana kuyambira 400m mpaka 2,800m, ndipo kutentha kozungulira kuyambira -35°C nthawi yozizira mpaka +45°C nthawi yachilimwe. Mapaipi a 48" X70 amafunikira kulimba kotsika kutentha mpaka -46°C (Charpy min 50J). Womic adasankha mbale za TMCP zokhala ndi nickel yowonjezera (Ni ≤ 0.50%) kuti akwaniritse mphamvu ya Charpy pa -46°C pafupifupi 120J. DWTT pa -20°C malo odulira: 92-96% ya thupi la mapaipi, 82-88% ya weld. Mayeso onse adapambana.

● Kudutsa zolakwika za chivomerezi - kapangidwe kozikidwa pa kupsinjika– Magawo anayi a mapaipi amadutsa zolakwika zomwe zingatheke kusunthidwa mpaka 1.5m. Paipiyo idapangidwa pogwiritsa ntchito kapangidwe kozikidwa pa kupsinjika (osati kozikidwa pa kupsinjika). Izi zimafuna mapaipi a X70 okhala ndi chiŵerengero chodziwika bwino cha zokolola ≤ 0.85 (API 5L PSL2 imalola 0.93) ndi kutalika kofanana ≥ 15%. Womic idapanga X70 yapadera ya "high-strain" yokhala ndi chiŵerengero cha zokolola 0.80-0.84 ndi kutalika kofanana 16-18%. Tinaperekanso mayeso omangirira a gawo lonse (osati kungodula) kuti titsimikizire mphamvu ya zokolola.

● Malo amapiri okhala ndi zofunikira kwambiri zopindika– Paipiyi ili ndi chitoliro cha mainchesi 48 cha 22 chomwe chayikidwa pamalo otsetsereka a madigiri 20-30. Kupindika kozizira kwa mapaipi a X70 ndi kochepa (API 5L imalola 1.5° pa 12m). Mapaipi opangidwa ndi Womic okhala ndi malo olumikizirana aatali kwambiri a 18m kuti agwire magawo owongoka ndi malo olumikizirana a 12m kuti agwire magawo opindika. Tinayesanso kupindika pa zitsanzo zonse: mapaipi a mainchesi 48 × 19.0mm adapindika kozizira kufika pa 2.0° pa 12m popanda kusweka (kutsimikiziridwa ndi UT ndi MT atapindika).

● Malo owolokera mtsinje omwe amafuna makoma olemera– Mabowo atatu a mitsinje (Oxus ributaries) amafunika 22.2mm WT m'malo mwa 19.0mm kuti awonjezere kugwa ndi kupindika poika pullback. Womic adagwiritsa ntchito njira ya UOE pamapaipi awa kuti akwaniritse ovality ≤ 0.2% (0.12-0.18%), kuonetsetsa kuti njira yosalala idutsa m'bowo. Mapaipi okhuthala a khoma amafunikanso kutentha kochepa panthawi yowotcherera (≤ 2.0 kJ/mm) kuti asunge HAZ yolimba.

● Kutumiza katundu mtunda wautali m'maiko atatu– Mapaipi anapangidwa mu fakitale ya ku Womic ku Tianjin, yotumizidwa ndi sitima kupita ku Almaty (Kazakhstan), kenako n’kusamutsidwa ku magalimoto akuluakulu kuti akaperekedwe ku malo omanga ku Uzbekistan ndi Tajikistan. Mtunda wonse woyendera: woposa makilomita 5,000. Womic anagwiritsa ntchito magalimoto apadera a sitima okhala ndi zothandizira zophimbidwa ndi zitsulo. Chitoliro chilichonse chinasakidwa ndi RFID pamalo aliwonse osamutsira katundu. Mapaipi onse sanawonongeke panthawi yoyendera ngakhale kuti panali maulendo atatu odutsa malire ndi maulendo 6 osamutsira katundu.

● Zofunika kwambiri pakuphimba kuti dzuwa liziwala kwambiri pamalo okwera kwambiri– Pamtunda wa mamita 2,800, kuwala kwa UV kumakhala kokwera ndi 40% kuposa pamlingo wa nyanja. Standard 3LPE imatha kuwonongeka mu UV wambiri. Womic adagwiritsa ntchito 3LPE yokhala ndi UV-stabilized top layer (carbon black content 2.5% vs standard 2.0%). Chophimbacho chidapambana mayeso ofulumira a UV weathering (1,000 hours QUV, gloss retention ≥ 80%). Mphamvu ya peel idatsala > 200 N/cm pambuyo pa UV.

● Zotsatira:Kukulitsa payipi ya 140 km kunamalizidwa ndipo kunayamba kugwira ntchito mu kotala lachiwiri la 2025. Matani onse 75,800 a mapaipi a X70 PSL2 adavomerezedwa ndi TÜV popanda kukanidwa konse. Zigawo zopangidwa ndi mphamvu zapulumuka zochitika ziwiri za chivomerezi (kukula kwa 4.2 ndi 5.1) m'miyezi 18 yoyambirira yogwira ntchito popanda zizindikiro za kugwedezeka kapena kutayikira. Kasitomala (kampani ya gasi ya dziko lonse ku Uzbekistan) adayamika Womic Steel chifukwa cha "kuwongolera bwino kwambiri khalidwe ndi chithandizo chaukadaulo." Womic tsopano ndiye wogulitsa wosankhidwa kwambiri wa magawo amtsogolo a Line D.

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 X70 LSAW kuti agwiritse ntchito mipanda ya gasi yothamanga kwambiri, mapaipi odutsa dziko lonse lapansi, ntchito zozungulira Arctic, ndi madera amphamvu kwambiri padziko lonse lapansi.