Pipe e kentsoeng ea CRA

Moelelo oa pipe e pharalletseng:carbon-peipi ea tšepe e nang le kutu e tšesaane-mokelikeli o sa tsitsang (CRA) o tlanngoeng ka tšepe bokaholimo bo ka hare (o apereng), kapa phaephe e arohaneng ea CRA e kentsoeng ka har'a carbon{2}}peipi ea tšepe (e nang le mola). Sepheo ke ho thibela ho bola ha CRA moo mokelikeli o amang, ha ho ntse ho bolokoa matla le sebopeho sa theko ea k'habone{4}}e tsamaisang tšepe.

Lipalangoang tsa oli, khase le lik'hemik'hale, kutu ha se taba feela ea tlhokomelo{0}e hlalosang nako ea bophelo ea sistimi kaofela. Liphaephe tsa khale tsa carbon steel, leha li le matla ka mochini, li fokotseha ka potlako ha li pepeseha-gase kapa metsing a leoatle. Ka lehlakoreng le leng, ho sebelisa liphaephe tse tiileng tsa corrosion{4}}resistant alloy (CRA) ke ntho e ntle ka botekgeniki empa ha e sebetse hantle.

Ho koala lekhalo lena, baenjiniere ba ile ba thehaCRA Clad le Pipe Lined, tharollo e tsoetseng pele ea metallurgic e kopanyangmatla, corrosion resistance, le{0}}tsenyehelo e ntleka sehlahiswa se le seng sa moenjineri.

Likhetho tsa liphaephe tse kentsoeng (Base + Layer ea CRA)

Motheong oa eona, CRA Claded Pipe kephala ea bimetallic, ho kopanya litšepe tse peli tse sebeletsang likarolo tse fapaneng empa li tlatsana:

Lera la Sebopeho (Shell ea Kantle):K'habone e phahameng{{0}e phahameng kapa{1}}alloy steel e tlase (mohlala, API 5L X60/X65, ASTM A106, A333) e fana ka boima ba -ho jara.

Thibelo ea Corrosion (Leare le ka Hare):Li-alloys tse thehiloeng ho nickel{{0}tse kang 316L, Inconel 625, Alloy 825, kapa Duplex 2205 li theha lesela le tsitsitseng le sireletsang khahlanong le CO₂, H₂S, le chloride{5}mekeli a mangata.

Metallurgical pairing e fihlela seo tšepe e neng e ka se khona e le 'ngoe feela: peipi e mamellang khatello e feteletseng, mocheso, le tlhaselo e senyang ka lilemo tse mashome, esita le libakeng tse ka tlas'a leoatle kapa libakeng tse phahameng- tsa letsoai.

Ho fapana le tšepe e tloaelehileng ea k'habone, liphaephe tsa CRA tsa cald li hloka maqhama a nepahetseng pakeng tsa lera la alloy le substrate ea tšepe. Mekhoa e sebelisoang e ipapisitse le litlhoko tsa ts'ebetso le boima ba ts'ebeletso:

Mokhoa o mong le o mong o lateloa kekalafo ea mocheso, tlhahlobo ea ultrasonic, le tlhahlobo ea sebopehoho netefatsa botsitso ba metallurgical le tšireletso e tsitsitseng ea CRA.

Manonyeletso a Tšimo le Lintlha tsa Tlhahiso

Ho tjheseletsa dipeipihaholo-holo e mabapi le ho sireletsa lera la CRA sebakeng sa weld-hobane dilution, heat input, le weld{1}}qetello ea litokisetso li etsa qeto ea hore na corrosion resistance e tla sireletsoa ka mor'a ho kopana{2}}. Bareki hangata ba bolela mofuta oa kopanelo (girth weld / tie-in spool), weld-litlhoko tsa ho lokisa qetellong, le sebaka sa tlhahlobo e le hore masela a kantle ho naha a se ke a emisa ho sebetsa hape.

Li-RFQ tse ling li ngola sena joalo kaho tjheseletsa dipeipi; Litaolo tse sebetsang lia tšoana: laola ho pepeseha ha CRA sebakeng sa weld, sebelisa lisebelisoa tse lumellanang, 'me u netefatse boemo ba ho qetela ba CRA sebakeng sa weld.

• -tokiso ea ho qetela ea Weld:Hlalosa bevel + CRA edge treatment e le hore thae-e se ke ea fokotsa CRA ka mokhoa o sa lebelloang.
• Taolo ea ho kenya mocheso le ho hlapolla:Boloka k'hemistri ea CRA sefahlehong sa weld e tsitsitse ho qoba "chese e shebahalang e le ntle, e senya hamorao".
• Sepheo sa tlhahlobo:E hloka boholo ba NDT/PMI libakeng tsa weld haeba morero oa kamohelo ea projeke o e hloka.

Bakeng sa pipeline ea CRA, "clad" le "lined" ha se mantsoe a ho reka a ka fapanyetsanoang. Khetho e nepahetseng e ipapisitse le se ka senyehang ha ho etsoa le ha ho etsoa tie-ins (CRA exposure at weld ends, liner movement, bond integrity), le hore na morero o hloka ho paka eng ha o amohela. Octal Pipe hangata e sebelisa lethathamo le ka tlase ho boloka li-RFQ li bapisoa le ho qoba ho ts'oaroa ha nako-ka morao ho spoolbase.

Li-alloys tsa CRA li khethoa ho latela mochini oa kutu le k'hemistri ea ts'ebetso. Litlhophiso tse tloaelehileng li kenyelletsa:

Metsoako ena e tiisa seobotšepehi ba mechine le ts'ireletso ea ho senyali fihlelleha ka nako e le 'ngoe-ntle le litšenyehelo tsa kaho e felletseng ea CRA.

A Phaephe ea CRATharollo hangata e hlalosoa ha tšepe ea carbon e le 'ngoe e sitoa ho mamella maro a hlahisoang nakong ea bophelo ba moralo, empa phala e tiileng ea CRA ha e na moruo. Lintho tse ka sehloohong tse ka qholotsang li kenyelletsa kotsi ea ho bola ha CO₂, mathata a litšebeletso tsa bolila, -ho tšoara metsi a chloride e phahameng, le litselana tsa maoatle moo batho ba sa khoneng ho lokisoa. Maemong ana, sepheo sa ho reka thepa ha se "CRA hohle," empa ke sebaka se laoloang sa CRA se nang le bopaki bo hlakileng ba ho cheseha le bopaki ba tlhahlobo.

Liphaephe tsa CRA Clad li kentsoe lefatšeng ka bophara libakeng tsohle moo kotsi ea kutu le tlhokahalo ea sebopeho li kopanang teng:

• Litsela tsa metsi a tebileng le mefuta e mengata ea maoatleho jara lero la multiphase
• Ente ea CO₂ le mekhoa e ntlafalitsoeng ea ho hlaphoheloa
• Limela tsa ho thibela metsi a maoatle le ho ntša letsoai
• Lisebelisoa tsa ho hloekisa le tsa petrochemicalho sebetsa media oa acidic kapa chloride
• Liindasteri tsa matla le lik'hemik'haletlas'a mocheso o phahameng le lipotoloho tsa khatello

Ka botšepehi ba CRA bo netefalitsoeng tlas'aNACE MR0175 / ISO 15156leAPI 5LD, liphaephe tsena li ka sebetsa lilemo tse 20-30 ka tlhokomelo e fokolang.

Bakeng sa bareki bapisabaetsi ba liphaephe tse aperengle ea tšoanelehangmofani oa lipeipi tse apereng, Monyetla oa Octal Pipe o hlaha ho lintlha tsa phepelo eo hangata e etsang hore projeke e tšoarelle: re notlela tsela ea kaho ea li-clad/liner ho RFQ, re laola boitokisetso ba ho qetela-e le hore manonyeletso a seke a pepesa kapa a senya lera la CRA, 'me re boloke traceability e le thata hore thepa ea CRA le k'habone-e tsamaisang thepa ea tšepe e khone ho lumellana. Ha e le hantle, ho bolela hore thomello e tla romelloa ka li-ID tsa liphaephe tse tsamaellanang, -mosebetsi o hlakileng oa liphaephe{3}}, le sete ea litokomane tse hokahanyang pipe le CRA le lenane le tšoanang la delibari-e le hore lihlopha tsa maiketsetso li se qobelloe-mosebetsing oa boitsebahatso pele li tjheseletsa.

• Tšireletso-habeli khahlanong le CO₂, H₂S, le chloride
• Matla a nako e telele-ka litšenyehelo tse fokotsehileng tsa CRA
• E lumellana le tjheseletso le ho kenya lipeipi tse tloaelehileng
• E loketse deepwater, HPHT, le lipeipi tsa litšebeletso tse bolila-
• E netefalitsoe ho API, ASTM, le litlhoko tsa kantle ho naha tsa DNV

Ikopanye hona joale

LBH

 

 

FAQ 1 - Ke tlhahlobo efe ea kamohelo eo ke lokelang ho e kopa ho API 5LD CRA e apereng kapa peipi e nang le line?

Bonyane, API 5LD e hlokaho hlahloba tlhahlobo ea hydrostatic ka mor'a ho koala / lera le kalafo ea mocheso, le tsamaiso ea teko e lokela ho ba lebopaki bo tlalehiloeng ba khatello le nako ea ho ts'oarakahoo bolelele bo bong le bo bong bo ke ke ba "feta" ntle le ho fihlela tlhoko ea tlhahlobo.

FAQ 2 - ke eng clad pipeline e bolelang ho aCRA pipeline RFQ?

Ha re ntse re reka thepa,peipi e kentsoengke peipi-ea tšepe ea tšepe e nang le acorrosion{0}}resistant alloy (CRA).tlamahane holim'a bokaholimo (a apereng), kahoo sebaka se kolobisitsoeng ke CRA ha pipe e tsamaisang thepa e fana ka matla. API 5LD e koahela phala ea tšepe ea CRA (le e kentsoeng) bakeng sa lipeipi tsa peterole le khase ea tlhaho.

FAQ 3 - Ke bapisa bahlahisi ba liphaephe tse apesitsoeng joang kapa mofani oa lipeipi tse aparetsoeng ntle le ho senya lipoeelo tsa RFQ?

Kopa lintho tse tharo esale pele:(1)hore na qotsa keaperekapakolokileho isa ho API 5LD,(2)thelintho tse entsoeng ka phala(botlaaseng kereiti + CRA kereiti + CRA botenya motheo oa), le(3)weld-ho itokisetsa ho qetela (kamoo karolo ea CRA/liner e tšoaroang ka eona bakeng sa maqhama-). Sena se qoba sefi se tloaelehileng sa "theko e tšoanang, kaho e fapaneng" ha ho bapisoa bahlahisi ba liphaephe tse apereng.

FAQ 4 - Ke lokela ho hlakisa eng bakeng sa tjheseletso ya dipeipi tse apesitsweng manonyeletsong?

Bakeng saho tjheseletsa dipeipi, senotlolo ke ho boloka khanyetso ea kutu ea CRA e ntse e tsoela pele ho pholletsa le thai-ka: hlalosa boitokisetso ba weld-ea ho qetela, taolo ea pepeneho ea CRA sebakeng sa weld, le tsepamiso ea tlhahlobo ho li-field joints (e le hore boqapi bo se ke ba emisa ho sebetsa bocha). Haeba RFQ e reho tjheseletsa dipeipi, e nke joalo ka sepheo se ts'oanang-empa u boloke mantsoe a konteraka a ntse a tsoela pelepeipi e kentsoeng.

Setifikeiti

 

Setifikeiti sa CE

Setifikeiti sa ISO 9001

Setifikeiti sa API Q1

Setifikeiti sa ABS

Setifikeiti sa AP-5L

Setifikeiti sa API-5CT

 

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