Kungani Ipayipi le-JCOE LSAW Lifanelekela Amaphrojekthi Epayipi Lensimbi Esindayo Esenziwe Ngokwezifiso

Impendulo Esheshayo: Ipayipi le-JCOE LSAW lilungele ukusetshenziswa kwezindonga ezisindayo ezenziwe ngokwezifiso ngoba linikeza ukukhiqizwa okuguquguqukayo, ubukhulu obunembile, kanye nekhwalithi yokushisela ethembekile. Ngokungafani nokukhiqizwa kwe-UOE yendabuko, i-JCOE ingaphatha kahle ububanzi obufanele, ubukhulu bodonga, kanye nobuningi obusekelwe kumaphrojekthi, okwenza kube yisisombululo esisebenzayo sezakhiwo zasogwini, amapayipi amandla, kanye namaphrojekthi okwakha anzima.

Okuqukethwe

• 1. Iyini ipayipi le-JCOE LSAW?
• 2. Ipayipi le-JCOE vs UOE: Ukuqhathaniswa Kwenqubo
• 3. Kusetshenziswaphi Amapayipi e-JCOE LSAW?
• 4. Yenziwa Kanjani Ipayipi le-LSAW? Ukwakheka kwe-JCOE Isinyathelo Ngesinyathelo
• 5. Izibonelo Zokuhlukaniswa Kwezindleko: I-oda le-JCOE LSAW elenziwe ngokwezifiso elingamathani angu-75
• 6. Ukuhlolwa Kwepayipi le-LSAW: Izidingo Zokuhlola ze-UT vs RT
• 7. Ukwakha Izidleke Zamapayipi: Indlela Yokunciphisa Ukuthutha Kwasolwandle Ekuthunyelweni Kwe-LSAW
• 8. Uhlu Lokuhlola lwe-RFQ Yepayipi le-LSAW elenziwe ngokwezifiso
• 9. Imibuzo Evame Ukubuzwa
• 10. Isiphetho

1. Iyini ipayipi le-JCOE LSAW?

Ipayipi le-JCOE LSAWiyipayipi lensimbi elihlanganisiwe elifakwe i-arc elibanzi elifakwe ngaphansi kwamanzi elenziwe ngokwakha kancane kancane ipuleti lensimbi eliyisicaba libe yisimo esiyindilinga ngokusebenzisa uchungechunge lwe-JCO, kulandelwe ukwanda komshini okugcwele ubude. Ngokungafani nepayipi elihlanganisiwe elijikelezayo, ipayipi le-LSAW linomthungo owodwa oqondile we-longitudinal weld, okwenza lifaneleke ukusetshenziswa okudinga ukunemba okuphezulu kanye nokuthembeka kwesakhiwo.

Ezindaweni ezingaphandle kolwandle, amapayipi amandla, kanye namaphrojekthi okwakha anzima, osayizi bamapayipi ajwayelekile ngokuvamile abanele. Onjiniyela bangadinga ububanzi bangaphandle obufanele, ubukhulu bodonga olusindayo, amazinga akhethekile ensimbi, noma izidingo ezithile zokuhlola. Kula ma-oda asekelwe kuphrojekthi, ukukhiqizwa kwe-UOE enkulu kungaba lula ngenxa yemodeli yayo yokukhiqiza enomthamo omkhulu.

Ukukhiqizwa kwe-JCOE kunikeza ukuguquguquka okukhulu kobukhulu obufanele kanye namaqoqo amancane okukhiqiza ngenkathi kugcinwa izidingo zekhwalithi ezidingekayo kwizicelo ezibalulekile. I-Yuantai Derun isebenzisa ubuchwepheshe be-JCOE kumaphrojekthi amapayipi amakhulu nodonga olusindayo, isekela izinhlelo zokusebenza kwingqalasizinda, amandla, kanye nobunjiniyela bezakhiwo.

2. Ipayipi le-JCOE vs UOE: Ukuqhathaniswa Kwenqubo

Ngaphambi kokucacisa, kuyasiza ukubona ukuthi izinqubo ezine eziyinhloko zihlangana kanjani nezinto ezimbili abathengi abazikhathalelayo: ukuthi bangazenza kanjani izinto, nokuthi bazozamukela i-oda elincane kangakanani.

Incazelo yonjiniyela:I-ERW ilungele imigqa ejwayelekile yodonga oluncane, futhiSI-SAW isetshenziswa kabanzi ekusetshenzisweni kobubanzi obukhulu lapho izidingo zokushisela ezijikelezayo kanye nephrojekthi zamukelekile.I-JCOE LSAW inqubo eyenza ipayipi elenziwe ngokwezifiso le-OD, elinodonga olusindayo (masithi i-OD 720 mm × WIT 38 mm) ngamaqoqo amancane asekelwe kuphrojekthi.ngaphandle kokubangela isijeziso sokushintsha amathuluzi ezinombolo ezinhlanu. (Bheka ukujula kwethu ku-I-LSAW vs. i-SSAW vs. i-Seamless.)

3. Kusetshenziswaphi Amapayipi e-JCOE LSAW?

Ngenxa yokuthi i-JCOE iphatha ububanzi obungejwayelekile kanye nezindonga ezisindayo ngobukhulu obuphathekayo, ibonakala noma kuphi lapho insimbi yokwakha idinga khona umthungo oqondile noqinisekisiwe we-longitudinal. Ukusetshenziswa okuvame kakhulu:

• Ama-monopile omoya wasogwini kanye nezingcezu zokuguquka.Ama-monopile asunduza ububanzi obungu-8-12 m futhi adinga ukujiya kodonga okulinganayo kanye nokuzungeza; i-JCOE ivumela igceke ukuthi lifinyelele i-geometry eqondile ngaphandle kokuzibophezela kwesilinganiso se-UOE.
• Izakhiwo zejakethi kanye namapulatifomu asogwini lolwandle.Izingxenye zemilenze, ama-braces, kanye neziqondiso zomqhubi zidinga ipayipi elinodonga olusindayo elinokumelana okuqinile — kanye nobubanzi be-JCOE.
• Izintambo zokudlulisa uwoyela negesi.Ezigabeni ezidinga i-WT yangokwezifiso noma ibanga elithile eduze kwe-tie-in, i-JCOE inikeza ucezu olungenakukwazi ukwenziwa yi-spiral mill.
• Amakholomu aqinile esakhiwo.Uphahla lwenkundla, amahholo ombukiso, kanye nohlaka lwezimboni kusebenzisa izingxenye ezinkulu ezingenalutho neziyindilinga lapho ukulawula ubukhulu kubaluleke kakhulu kunomthamo.

Kuzo zonke izimo umthengi akathengi ithani elishibhile kakhulu — badinga ipayipi elifanela umdwebo futhi lidlule ekuhlolweni okokuqala. Yilelo sikhala esigcwaliswa yi-JCOE.

4. Yenziwa Kanjani Ipayipi le-LSAW? Ukwakheka kwe-JCOE Isinyathelo Ngesinyathelo

IgamaI-JCOEichaza ukulandelana kwemishini okusetshenziselwa ukwakha ipuleti lensimbi esindayo:

Ipuleti Lensimbi → Ukugoba kuka-J → Ukugoba kuka-C → Ukugoba kuka-O → Ukushisela kwe-ID/OD SAW → Isinyathelo E (Ukwandiswa)

Ama-dies okucindezela e-Universal agobe ipuleti isinyathelo ngesinyathelo (J → C → O) — akukho mathuluzi akhethekile adingekayo kusayizi ngamunye.

• Ukugoba kwangaphambili komphetho:Ukugoqa ngomshini kubumba imiphetho yepuleti ibe yirediyasi eqondiwe, kususe izindawo ezisicaba ebezizohlala eduze komthungo.
• Ukugoba kuka-J:Umshini wokucindezela we-hydraulic ojwayelekile ugoba kancane kancane unqenqema olulodwa lube yiphrofayili ethi “J”.
• Ukugoba kwe-C:Unqenqema oluphambene lucindezelwa isinyathelo ngesinyathelo ku-“C” evulekile.
• Ukugoba kwe-O:Umshini wokucindezela uvala ipuleti libe u-“O” ovulekile, uqondanisa imiphetho yokushisela i-submerged-arc.
• Ukushisela i-Arc Ecwiliswe Emanzini (i-SAW):Amapayipi amaningi angaphakathi (ID) nangaphandle (OD) ajoyina umthungo. Ukufakwa kokushisa okuphezulu kuqhuba ukuhlangana okujulile futhi kushise ukungcola okungaba khona.

Isinyathelo Sokunweba (E): Ukwandiswa Kokubanda Okugcwele Kwemishini

I-“E” yokugcina ukunwetshwa. Ikhanda lesandisi se-hydraulic elinamasegimenti amaningi lihamba ubude obugcwele bangaphakathi bepayipi, linwebeka kusukela ekuqaleni kuya ekugcineni. Lesi yisinyathelo esihlukanisa i-JCOE nezitolo ezilula zokugoba amapuleti.

[ Ipayipi elihlanganisiwe elinganwetshiwe ] → [ Ikhanda lokwandisa amanzi elingaphakathi ] → [Ukuvumelana okuthuthukisiwe kanye nokuzungeza kobukhulu]

Ukwandiswa komshini okugcwele kunciphisa ukucindezeleka okusele futhi kuvale ukugoba nokuqondile kulo lonke ipayipi.

• Ukuqeda ukucindezeleka okusele:Ukwakha kanye nokushisela okunama-multi-pass kushiya ukucindezeleka komshini kanye nokushisa endaweni. Ukwandiswa okubandayo kuveza insimbi idlule kancane iphuzu layo lokunwebeka, kunciphisa ukucindezeleka okusele futhi kuthuthukise ukuzinza kobukhulu kanye nokusebenza kahle kokushisela.
• Ukuqinisekisa ukulungiswa kwensimu:Ukwandiswa kuphoqa ipayipi ukuba lijikeleze ngokuqinile (ukuvunda) kanye nokuqondile. Iziphetho zepayipi ezihlanzekile zisho ukulingana endaweni esikhundleni sokulwa nokushisela ensimini ngesikhathi sokungasebenzi kanye nokulwa kokulungiswa.

5. Izibonelo Zokuhlukaniswa Kwezindleko: I-oda le-JCOE LSAW elenziwe ngokwezifiso elingamathani angu-75

Qaphela: Izibalo ezingezansi ziyisibonelo, zisekelwe eqoqweni elenziwe ngokwezifiso elingamathani angu-75. Intengo yangempela incike ebangeni lensimbi, izidingo zesitifiketi, kanye ne-incoterms. Zabelwana ngazo ukuze zibonise isakhiwo sezindleko, hhayi njengekhotheshini.

Abathengi basibuza njalo:"Kungani intengo yethani ngalinye iphakeme nge-oda le-JCOE elincane kuneyokusebenzisa i-bulk ejwayelekile?"Impendulo eqotho isobalaImodeli yezindleko "zezitezi ezintathu":

Intengo Yephayiphi Eyenziwe Ngokwezifiso = [Isitezi Sokusetha Nokusebenzisa Amathuluzi] + [Isitezi Sezinto] + [I-NRE Nokuhlola Isitezi]

Isibonelo esisebenzayo: ukwabiwa kwezindleko zephrojekthi

Isidingo:Ipayipi le-API 5L PSL2 X65Q LSAW, OD 610 mm × WIT 32 mm (udonga olusindayo olwenziwe ngokwezifiso).
Umthamo:Amathani angu-75 (≈ amamitha angu-165 / ubude obungu-14 obungu-11.8 m).

Ukuqonda isikali: Cindezela i-oda kusuka ku-75→Amathani angu-300 kanye nokusetha okungaguquki okungu-$4,500 kunciphisa kusuka ku-$60/ton kuya ku-$15/ton. Kuhlanganiswe nokuzuza okuncane kokusebenza kahle ekusikeni amapuleti kanye nokushisela okuqhubekayo, intengo yeyunithi yehla kusuka ku-$1,440/ton kuya cishe ku-$1,385/ton.—ubufakazi bokuthi "i-premium" ekuqhutshweni okwenziwe ngokwezifiso iqhutshwa yi-amortization ehleliwe, hhayi izinzuzo ezikhushuliwe.

6. Ukuhlolwa Kwepayipi le-LSAW: Izidingo Zokuhlola ze-UT vs RT

Amaqembu okuthenga aphikisana kakhulu ngokuthi ngabe ayasebenza yinikokubiliUkuhlolwa kwe-Ultrasonic (UT) kanye nokuhlolwa kwe-Radiographic (RT) kumthungo we-longitudinal kuyadingeka noma kumane kuyizindleko eziphindwe kabili. Uhlobo olufushane: zibamba izigaba ezahlukene zamaphutha, ngakho-ke ziyahambisana, azidingi ukusetshenziswa.

I-UT ezenzakalelayo iskena ngo-100% wobude bomthungo; i-RT eqondisiwe iqinisekisa izimpawu ezingacacile emaphethelweni epayipi.

Kungani i-weld ingadlula i-UT kodwa yehluleke i-RT (futhi okuphambene nalokho)

Umbuzo esiwuthola kakhulu:"Ingabe iphutha elisepayipini le-LSAW lingadlula i-UT kodwa lihluleke i-RT?"

Yebo.I-micro-cluster porosity noma i-slag ehlakazekile ivumela amagagasi omsindo ukuthi adlule ngokukhanya okuncane (kudlula i-UT) kodwa avele ngokusobala njengezikhala kufilimu ye-X-ray (yehluleka i-RT). Yiphendule: uqhekeko oluqinile oluqondile oluhambisana nokukhanya kwe-X-ray lungase lungadali thunzi olubonakalayo (ludlula i-RT) kodwa lubonise ukukhanya kwe-ultrasonic emuva ngqo ku-transducer (yehluleka i-UT). UkucacisaI-API 5L PSL2ngokuvamile kudinga kokubili ukuskena okugcwele kwe-AUT kanye nokuqinisekiswa kwe-spot RT, ngoba indinganiso ibeka ukulindela okuqinile kokuqina kwe-weld.I-EN 10219amaphrojekthi, ngokuphambene, alandela isigaba sokuhlola kanye nezidingo zomthengi ezibhalwe ku-oda lokuthenga — okungase kudinge noma kungadingi inhlanganisela efanayo. (OkwethuUbuqotho bokushisela be-NDT obuyi-100%ingxenye ihlanganisa indlela yokucacisa noma yikuphi ngokufanele.)

7Ukwakha Izidleke Zamapayipi: Indlela Yokunciphisa Ukuthutha Kwasolwandle Ekuthunyelweni Kwe-LSAW

Imithwalo yolwandle yamapayipi amakhulu iqhutshwa yimithwaloivolumu, hhayi isisindo. Ngenxa yokuthi i-JCOE yenza ubude nobubanzi obungokwezifiso, ungathuthukisa ukuthunyelwa ukuze unciphise izindleko zokufika ngemitha.

[ Ukwakha isidleke sepayipi / i-telescoping ] → ipayipi elincane le-OD ngaphakathi kwepayipi elikhulu le-OD = ivolumu eyengeziwe engu-zero
[ Ukulungiswa kwesitsha ] → ubude obungokwezifiso (5.8 m / 11.8 m) = isivuno sevolumu yesitsha esingu-100%

Ukubona ipayipi elincane le-OD ngaphakathi kwelinye elikhulu kushintsha isikhala esikhululekile sibe yimpahla egciniwe.

Isibonelo sokonga esisebenzayo: amapayipi okwakha e-telescoping

Ipayipi langaphandle:I-OD 1016 mm × Isisindo esingu-25 mm I-LSAW (Amathani ayi-100)
Ipayipi langaphakathi:OD 711 mm × UBUNZIMA 16 mm LSAW (Amathani angu-70)

Ubude be-JCOE obungokwezifiso bunganqunywa bube nobukhulu obuvumelana neziqukathi (11.8 m kumabhokisi angu-40HQ) ngezihlukanisi ezivikelayo — okwandisa isikhala ngenkathi kuvimbela amapayipi ukuthi angathintani lapho kuthuthwa.

8Uhlu Lokuhlola lwe-RFQ Yepayipi le-LSAW elenziwe ngokwezifiso

Ukuze ugweme izinkinga zokuxhumana ezivamile ngesikhathi sokulungiselela i-RFQ futhi uthole ikhotheshini enembile ku-oda le-LSAW elenziwe ngokwezifiso, hamba kulolu hlu lokuhlola:

• Imininingwane yobukhulu:Sho i-OD eqondile × i-WT eqondile ngamamilimitha (isb., 610 mm × 32 mm). Gwema izingcingo ze-NPS/Schedule ezingacacile ezintweni ezisindayo.
• Ibanga lezinto kanye nesimo sokulethwa:Qamba ibanga kanye nesimo (isb., i-API 5L PSL2 X65Q ecinyiwe/eqinisiwe, noma i-EN 10219 S355J2H ejwayelekile).
• Ukuhlolwa kanye nesitifiketi:Ukumbozwa kwe-NDT okugunyaziwe (ukuskena komthungo kwe-AUT okungu-100% + i-RT yepayipi) kanye nezinga lesitifiketi (i-MTC 3.1, noma ufakazi wesithathu we-MTC 3.2 yi-SGS / Lloyd's).
• Ukulungiselela nobude bokuphela:I-engeli ye-bevel (30° – 35° yokufakwa kwensimu) kanye nobude be-target (11.8 m ± 10 mm yokukhiqiza isitsha).

Izinto Ezibalulekile Okufanele Uzicabangele

• I-JCOE LSAW yenza i-OD eyenziwe ngokwezifiso, ipayipi elinodonga olusindayo (kufika ku-50 mm WT) ngamaqoqo amancane asekelwe kuphrojekthi kunalokho okudingwa yi-UOE mill ngokuvamile.
• Ukwandiswa kokushisa okugcwele (Isinyathelo E) kunciphisa ukucindezeleka okusele futhi kuqinisekisa ukulingana kwensimu — ukubambezeleka kokushisela kuncane.
• Kwezicelo eziningi zephayiphi ebalulekile ye-API 5L PSL2, ukuhlolwa kwe-ultrasonic okuzenzakalelayo kanye nokuhlolwa okwengeziwe kwe-radiographic kungachazwa kuye ngemininingwane efanele kanye nezidingo zomthengi; amaphrojekthi e-EN 10219 alandela isigaba sawo sokuhlola esicacisiwe.
• Ukwakha izidleke zamapayipi kunganciphisa imithwalo yolwandle cishe ngo-45% ngokuthumela ipayipi elincane le-OD ngaphakathi kwepayipi elikhulu le-OD.

9Imibuzo Evame Ukubuzwa (Imibuzo Evame Ukubuzwa)

Umbuzo 1: Uyini umehluko omkhulu phakathi kokukhiqizwa kwamapayipi e-UOE kanye ne-JCOE LSAW?

Umehluko usekulungiseni kokwakha. I-UOE isebenzisa ama-dies aqinile esenzo esisodwa ukucindezela amapuleti aphelele abe yizimo ze-U kanye ne-O, ngakho-ke idinga ukugijima okukhulu ukuze ikhokhele ukushintshashintsha kwama-die. I-JCOE isebenzisa ama-dies acindezelayo e-universal ukugoba amapuleti kancane kancane (J → C → O), okuvumela ukusethwa okuguquguqukayo okufanelekela osayizi abangokwezifiso kanye nama-batches amancane.

Umbuzo 2: Kungani intengo ngethani iphezulu kuma-oda e-JCOE amancane ngokwezifiso?

Amaqoqo amancane anezindleko eziyisisekelo ezihleliwe — ukulinganiswa komshini, ukwakheka kwepuleti lokuhlola, ukuhlolwa kwe-hydrostatic, ukusethwa kwe-NDT — okusabalele ngamathani ambalwa. Izigayo zensimbi ezingavuthiwe nazo zengeza amaphrimiyamu asebenza kancane ngaphansi kokushisa okujwayelekile. Lokho kuyizindleko ezihleliwe, hhayi imajini eyengeziwe.

UMBUZO 3: Ukwandiswa kwemishini (Isinyathelo E) kuvimbela kanjani izinkinga zokushisela ensimini?

Ukwandiswa okubandayo okugcwele kuphoqa ipayipi libe ububanzi obuqondile, ukujikeleza (ukuma), kanye nokuqondakala kulo lonke ubude balo. Lokho kuqeda ukungalungi kwamalunga lapho kufakwa, kusindise umsebenzi wokufaka izinsimbi futhi kuvimbele ukuqhekeka komthungo.

Umbuzo 4: Ingabe ngidinga kokubili i-UT kanye ne-RT emthungweni?

Ngesevisi ebalulekile ye-API 5L PSL2, ngokuvamile yebo — indinganiso ngokuvamile idinga kokubili ukuskena okugcwele kwe-AUT kanye ne-spot RT. Umsebenzi we-EN 10219 ulandela isigaba sokuhlola esibhalwe ku-oda lokuthenga. I-UT ibamba amaphutha ahleliwe (imifantu, ukuntuleka kokuhlanganiswa) futhi inikeze ukujula; i-RT ibamba amaphutha e-volumetric (i-porosity, i-slag).

10Isiphetho

Inqubo ye-JCOE ihlanganisa igebe phakathi kokukhiqizwa kwesisindo esikhulu kanye nezidingo zobunjiniyela eziqhutshwa kanye. Ngokuhlanganisa ukwakheka okuguquguqukayo, ukwanda okubandayo okugcwele, ukulawulwa kwe-NDT okubili, kanye nokwenza ngcono izinto, i-JCOE inikeza amaphrojekthi e-LSAW akhiwe ngodonga olusindayo ngendlela ethembekile nengabizi kakhulu — ngaphandle kokugcinwa kwesango elikhulu kwemishini yokugaya i-UOE.

Kwabathengi be-EPC abanesisindoI-LSAW vs. i-SSAW vs. i-Seamless, noma ukuhlela izinhlelo zomoya olwandle kanye nezinhlelo ezisindayo, isinyathelo esisebenzayo ukulungiselela i-RFQ ecacile (sebenzisa uhlu lokuhlola olungenhla) bese uvumela izinombolo - hhayi inqubomgomo ye-MOQ yemboni - ukuthi zinqume.

Udinga ipayipi le-LSAW elenziwe ngokwezifiso lamaphrojekthi ase-Offshore noma engqalasizinda?

Yabelana nge-OD yakho, ubukhulu bodonga, izinga lensimbi, kanye nezidingo ezijwayelekile nethimba lethu lobunjiniyela. Sizohlola ukuthi kungenzeka yini ukukhiqiza kulayini wethu we-JCOE bese sibuyisela ikhambi lobuchwepheshe kanye nesilinganiso - kungaba yi-oda lesakhiwo noma isigaba somugqa wokudlulisela esiqinisekisiwe.

Cela Isilinganiso Sobuchwepheshe →

Izibalo ezibonisiwe zibonisa i-JCOE/ kaYuantai DerunI-LSAWulwazi lokukhiqiza (I-API 5L PSL2/ EN 10219) futhi zenzelwe ukubhekisela kwisakhiwo sezindleko kuphela. Njengoba amanani ensimbi nempahla eshintshashintsha njalo, sicela ugxile ezindleleni zezindleko. Xhumana nathi noma nini ukuze uthole isilinganiso esibukhoma, esenziwe ngokwezifiso.