1. Me Yasa Zabi Bututun Rufe – Kuma Me Yasa Za A Zabi Karfe Mai Rufe A Matsayin Mai Kera Ka?
Bututun da aka lulluɓe da shi yana haɗa wanibabban ƙarfin carbon ko ƙarancin ƙarfe mai ƙarfe mai ƙarfe(wanda ke kula da matsin lamba, nauyin injina, da farashi) tare daLayer na ciki mai jure tsatsa(wanda ke hulɗa kai tsaye da ruwa mai ƙarfi). Wannan tsarin mai matakai biyu yana rage farashin kayan da kashi 30-60% idan aka kwatanta da bututun CRA mai ƙarfi, yayin da yake samar da kariyar tsatsa da tsawon lokacin aiki.
A matsayinƙera bututun da aka saka, Womic Steel ba wai kawai yana bayar da kundin kayan aiki ba ne. Muna farawa da yanayin aikinku: H₂S, CO₂, Cl⁻, pH, zafin jiki, matsin lamba, matsin lamba na hydrogen, da buƙatun injiniya. Sannan muna ba da shawarar haɗin ƙarfe mai tallafi, rufin CRA, da tsarin haɗawa mafi aminci da araha.
Kwarewarmu ta samo asali ne daga ayyukan gaske - filayen iskar gas mai tsami a bakin teku, hanyoyin haɗa ruwa mai zurfi a ƙarƙashin teku, tukunyar wutar lantarki mai matuƙar mahimmanci, layukan gwajin hydrogen, da tsarin allurar CCUS-EOR. Mun fahimci cewa bututun da aka lulluɓe ba abu ne mai amfani ba; samfuri ne da aka ƙera.
2. Tsarin Rufewa - Yadda Muke Haɗa Karfe Biyu
Mabuɗin bututu mai aminci shinehanyar haɗawatsakanin ƙarfe mai baya da kuma layin CRA. Ga manyan hanyoyin guda huɗu da muke amfani da su, waɗanda aka tsara bisa ga ƙarfin haɗin gwiwa da kuma dacewa da amfani.
2.1 Simintin Centrifugal + Fitar da Zafi (Haɗin Ƙarfe Mara Sumul)
Yadda yake aiki:
Da farko ana jefa layin CRA cikin bututun da babu komai a ciki. Sannan ana saka wannan bututun a cikin bututun ƙarfe na carbon, ana dumama shi, sannan a haɗa shi da wani babban matsi na extrusion. A yanayin zafi da matsin lamba mai yawa, ƙarfe biyu suna yaɗuwa cikin juna, suna samar da haɗin ƙarfe na gaske.
Halayen haɗin gwiwa:
● Ƙarfin yankewa na hanyar sadarwa ≥300 MPa (mafi girma a cikin dukkan hanyoyin aiki)
● Babu dinkin walda mai tsayi - cikakke cikakke
● Kauri mai kama da juna, daidaiton girma
Mafi dacewa ga:
Ƙananan diamita zuwa matsakaici (≤400mm – ~16″), matsin lamba mai yawa, yanayin zafi mai tsanani, aikin hydrogen, bututun tukunya, bututun ramin ƙasa, mai canza zafi U-bends.
2.2 Haɗin Zafi + Tsarin JCOE / UOE
Yadda yake aiki:
Ana tsaftace faranti na CRA da farantin ƙarfe na carbon, a saka su a cikin injin injina, a rufe su, a dumama su, sannan a ratsa ta injin niƙa mai birgima. Tashoshi da yawa na birgima suna haifar da haɗin ƙarfe. Sannan ana samar da faranti mai rufi zuwa bututu ta amfani da JCOE (JCO-Edge) ko UOE press forming, sannan a biyo baya da walda mai tsayi.
Halayen haɗin gwiwa:
● Ƙarfin yankewa na hanyar sadarwa 200–260 MPa
● Ana iya samun manyan diamita (har zuwa 1,800mm / 72″)
● Dogayen tsayi guda ɗaya (har zuwa mita 24 ko fiye)
● Ya ƙunshi dinkin walda guda ɗaya mai tsayi (dole ne ya zama mai cancanta kuma an duba NDT)
Mafi dacewa ga:
Manyan bututun mai tsawon nisa, layukan kwararar ruwa mai zurfi a ƙarƙashin teku, layukan akwati, da masu tashi. Wannan ita ce hanyar da aka fi amfani da ita don bututun layin da aka tabbatar da API 5LD.
2.3 Rufin Fashewa + Juyawa Faranti
Yadda yake aiki:
Ana sanya faranti na CRA a kan farantin ƙarfe mai carbon wanda aka ƙididdige shi, sannan a rufe shi da abubuwan fashewa. Fashewar tana tura faranti na CRA zuwa cikin farantin baya a cikin babban gudu, yana haifar da haɗin ƙarfe mai ƙarfi. Sannan ana naɗe faranti ɗin da aka lulluɓe shi da haɗaɗɗen bututu.
Halayen haɗin gwiwa:
● Haɗin wavy tare da ƙarfin haɗin gwiwa mai kyau (200-280 MPa)
● Zai iya haɗa ƙarfe daban-daban waɗanda ke da wahalar naɗewa (misali, titanium zuwa ƙarfe, zirconium zuwa ƙarfe)
● Girman faranti yana da iyaka da wurin fashewa; walda na gaba ana buƙatar yin ta
Mafi dacewa ga:
Haɗin kayan da aka yi da kayan ado na musamman: titanium/ƙarfe, zirconium/ƙarfe, tantalum/ƙarfe don bututun sinadarai masu ƙarfi da musayar zafi.
2.4 Rufin Inji (Ba a ba da shawarar yin amfani da shi don ayyukan da suka shafi mahimmanci ba)
Yadda yake aiki:
Ana faɗaɗa bututun CRA a cikin bututun ƙarfe na carbon ko kuma a faɗaɗa shi ta hanyar amfani da ruwa. Layukan biyu suna kasancewa tare ta hanyar tsangwama (matsalar ƙugiya).
Halayen haɗin gwiwa:
●Babu haɗin ƙarfe- kawai hulɗa ta jiki
● Ƙarfin haɗin <10 MPa
● Layin zai iya kumbura, rugujewa, ko rabuwa a ƙarƙashin zagayowar zafi ko bugun matsin lamba
Lokacin da muke amfani da shi:
Sai kawai don ƙarancin zafin jiki, ƙarancin matsin lamba, rashin zagayowar aiki, da kuma lokacin da abokin ciniki ya yarda da ƙa'idodin. Kullum muna bayyana haɗarin da ke tattare da bututun ƙarfe da aka haɗa da ƙarfe.
Shawararmu:Ga duk wani muhimmin aikin mai da iskar gas, hydrogen, ko ruwa mai zurfi, zaɓi bututun da aka lulluɓe da ƙarfe - ba bututun da aka lulluɓe da injina ba.
3. Jagorar Zaɓin Tsarin Aiki - Nazari Mai Sauri
| Tsarin Haɗawa | Nau'in Haɗi | Ƙarfin Ragewa | Ba shi da sumul? | Max OD | Mafi kyawun Aikace-aikacen |
| Na'urar centrifugal + Extrusion | Masana'antar ƙarfe | ≥300 MPa | Eh (babu dogon dinki) | ≤400mm | Zagaye mai zafi, H₂, ƙaramin diamita |
| Haɗin Hot Roll + JCOE | Masana'antar ƙarfe | 200–260 MPa | Babu (dogon ɗinki ɗaya) | ≤1800mm | Manyan bututun mai diamita, ƙarƙashin teku |
| Fashewa + Mirgina | Masana'antar ƙarfe | 200–280 MPa | Babu (dogon ɗinki ɗaya) | ≤1200mm | An lulluɓe da titanium / zirconium |
| Rufin Inji | Jiki (babu haɗin kai) | <10 MPa | No | ≤800mm | Ƙaramin haɗari, ƙarancin takamaiman amfani na ɗan lokaci |
Womic Steel ta mayar da hankali kancentrifugal + extrusion (babu sumul)kumaan haɗa shi da zafi + JCOEa matsayin manyan hanyoyin kera bututun da aka lulluɓe. Muna yin kwangilar rufin fashewa don buƙatun ƙarfe na musamman, koyaushe tare da cikakken iko mai inganci.
4. Haɗuwar Kayan Aiki Na Musamman (Dangane da Samarwa Na Gaske)
| Bayani | Karfe Mai Baya | Rufin CRA | Sabis na Yau da Kullum |
| #1 | P265GH (EN10216 2) | TP304L | Mai dumama zafi mai ƙarancin zafi na tukunyar jirgi, mai musayar zafi na sinadarai |
| #2 | X10CrMoVNb9 1 (T91) | UNS N08028 (Alloy 28) | Sashen zafi mai zafi mai tsanani, bututun mai mai lalata sosai |
| #3 | P265GH | UNS N08825 (Incoloy 825) | Tarin iskar gas mai tsami, mai musayar zafi mai matsin lamba |
| #4 | API 5L X65 | Inconel 625 (UNS N06625) | Man fetur da iskar gas na ruwa mai zurfi, hanyoyin kwararar ruwa mai tsami na ƙarƙashin teku |
| #5 | API 5L X65MS | Duplex 2205 | Allurar ruwan teku, yanayin chloride mai yawa + CO₂ |
| #6 | ASTM A333 Gr.6 | 316L | Ƙarancin zafin jiki (-45°C) mai tsami |
| #7 | API 5L X70 | 316L | Girkin iskar gas mai daɗi tare da sabis na jika lokaci-lokaci |
| #8 | ASTM A335 P11 | 904L | Layin matatar mai zafi mai zafi tare da sulfur / chloride |
Za mu iya daidaita kowace haɗuwa idan an buƙata. A samar da ruwan da ke cikin ku, zafin jiki, da matsin lamba - za mu ba da shawarar haɗa shi da kyau.
5. Kula da Inganci & Gwaji - Abin da Muke Yi ga Kowane Rukunin
A matsayinmu na masu kera bututun da aka lulluɓe da alhaki, muna amfani da tsarin dubawa da gwaji mai zurfi. Tsarin da ke ƙasa ya shafi bututun da aka lulluɓe da ƙarfe (duka ba su da matsala kuma an haɗa su da walda).
5.1 Tabbatar da Kayan Danye
Binciken kimiyya:Binciken na'urar auna sigina ta OES akan ƙarfe mai goyan baya da kuma rufin CRA a kowane zafi. An haɗa da cikakken rahoton.
Tasiri da tasiri akan ƙarfe na tushe:An gwada ƙarfe daban-daban; An tabbatar da ingancin kayan CRA ta hanyar takardar shaidar injin niƙa.
5.2 A Cikin Tsarin Aiki & Kula da Ingancin Lamuni
| Gwaji | Hanyar | Ka'idojin Karɓa |
| Ƙarfin yanke haɗin gwiwa | Gwajin turawa (mai lalatawa, samfuri ɗaya ga kowane rukuni na samarwa) | ≥200 MPa don birgima mai zafi/fashewa; ≥300 MPa don centrifugal+extrusion |
| Gwajin Ultrasonic (UT) na haɗin haɗin gwiwa | Cikakken hoton jiki tare da na'urori masu auna sigina | Babu rabuwar da aka yi > 50mm; jimlar rabuwar da aka yi ≤ 2% na yanki |
| UT na walda mai tsayi (don bututun da aka lulluɓe da walda) | Tabbatarwa ta atomatik ta UT + ta hannu 100% | Bukatun API 5LD / DNV |
| Duba gani da girma | Cikakken tsayi | OD, WT, kauri na rufin, ovality, madaidaiciya |
5.3 Gwajin Inji (Kowace Zafi ko Kowace Rukunin)
● Juyawan juyi:Ƙarfin haɗin gwiwa da aka haɗa
●Gwajin lanƙwasawa da aka jagoranta (fuska da tushe):Lantarki na walda (don bututun da aka lulluɓe da walda)
●Binciken taurin kai:A gefen rufin, layin haɗin, da HAZ
●Tasirin Charpy V-notch:Karfe mai tallafi a yanayin zafi da aka ƙayyade (0°C, -20°C, -40°C, -60°C)
5.4 Gwaji Mai Tsabta & Ƙarin Gwaji (Idan Aka Buƙata)
●Tsatsa tsakanin granular:ASTM A262 (don rufin austenitic)
●Juriyar juyawa:CPT / CCT (don duplex / super duplex)
●Gwajin HIC / SSC:NACE TM0284 / TM0177 don sabis mai tsami
●Fashewar da hydrogen ya haifar (HIC):Don hidimar H₂S mai ruwa
●Ma'aunin Ferrite:Don rufin duplex
5.5 Gwajin Hydrostatic
●Matsi:Matsin ƙira na 1.5× (ko kuma bisa ga lambar da ta dace)
●Lokacin riƙewa:Mafi ƙarancin daƙiƙa 10, babu ɓuya
●Rikodi:Kowane bututu an yi rikodin shi daban-daban; an haɗa da rahoto
5.6 Shirye-shiryen Ƙarshe & Fitowar Ƙarshe
1. Juyawa:Kowace zane (API 5L, ASME, ko na musamman)
2. Man shafawa na CRA (zaɓi ne):Rufe bakin da aka yi da nickel a kan fuskar bevel don hana narkewa yayin walda a filin wasa
3. Alamar:Tambarin Stencil / ƙaramin damuwa - misali, daraja, nau'in rufi, lambar zafi, tsawon, masana'anta
4. Kariya:Murfin ƙarshe + man hana tsatsa (idan ba a shafa ba)
5. Ingancin Takardar da aka bayar tare da jigilar kaya:
● Takardar shaidar EN 10204 Nau'in 3.1 (kimiyya, tensile, tasiri, yanke haɗin gwiwa, UT, hydro)
● Rahotannin NDT (taswirorin UT, MT/PT idan ya dace)
● Rahoton dubawa na girma
● Taswirar maganin zafi
● Hotunan shirye-shiryen ƙarshe da marufi
● Zaɓi: EN 10204 Nau'in 3.2 tare da shaida na ɓangare na uku (SGS, BV, DNV, TÜV)
6. Ƙarfin Masana'antu - Dalilin da yasa Womic Steel ke aiki
| Ƙarfi | Cikakkun bayanai |
| Bututun da ba shi da sumul (centrifugal + extrusion) | OD 60–400mm, kauri na bango har zuwa 40mm, matsakaicin tsawonsa mita 15 |
| Bututun da aka saka da walda (naɗin zafi + JCOE) | OD 400–1,800mm, kauri na bango har zuwa 60mm, matsakaicin tsawon mita 24 |
| Kayan rufi | Bakin ƙarfe, duplex, nickel alloy, titanium (idan an buƙata) |
| Karfe masu goyon baya | API 5L, ASTM A106/A333/A335, EN10216-2, T91, chrome-moly |
| Yawan aiki na shekara-shekara | Tan 15,000+ na bututun da aka lulluɓe (ba shi da sumul + an haɗa shi da welded) |
| Takaddun shaida | ISO 9001, PED, API 5LD (a ƙarƙashin aikace-aikacen / wanda ya cancanta), bitar da aka amince da ita ta DNV |
| Dubawa na ɓangare na uku | SGS, BV, DNV, TÜV, ABS, LR – ana samun su akan farashin masana'anta ko kuma a biya su kai tsaye |
7. Aikace-aikace & Nassoshi na Aiki
7.1 Tarin Iskar Gas Mai Tsami a Teku
Misali:Filin iskar gas mai yawan H₂S / CO₂ a Kudu maso Yammacin China.
Kalubale:Karfe mai ƙarfi na carbon ya lalace cikin sauri; bututun ƙarfe mai ƙarfi na 825 ko 625 ya yi tsada sosai.
Mafita:Bututun rufewa - goyon bayan X65MS + Incoloy 825 cladding, an haɗa shi da zafi + JCOE.
Sakamako:An sanya bututun mai tsawon kilomita 35, an yi aiki na tsawon shekaru 2, babu tsatsa a ciki.
7.2 Layin Ruwa Mai Zurfi a ƙarƙashin Ruwa
Misali:Ci gaban Tekun Kudancin China (zurfin ruwa mita 1,500).
Kalubale:Sabis mai tsami, matsin lamba mai yawa, shigarwar ƙarancin zafin jiki, da kuma lodin gajiya.
Mafita:Bututun da aka lulluɓe da sumul – goyon baya mara matsala X65 + rufin Inconel 625 ta hanyar centrifugal + extrusion.
Sakamako:An shigar da shi cikin nasara ta hanyar hanyar reeling, an wuce nazarin gajiya na DNV.
7.3 Babban injin dumama tukunya mai ƙarfi
Misali:An sake gyara na'urar wutar lantarki ta kwal mai karfin MW 1,000.
Kalubale:Iskar gas mai tururi + tsatsa mai kama da iskar gas mai kama da tsatsa.
Mafita:T91 na waje + Alloy 28 rufin ciki, extrusion mara matsala.
Sakamako:Ana aiki na tsawon shekaru 3 ba tare da lalacewar bututun ba.
7.4 Layin Matukin Jirgin Ruwa na Hydrogen
Misali:Gwajin bututun hydrogen da aka yi a China.
Kalubale:Haɗarin ɓullar hydrogen, babu izinin rufewa ta ciki.
Mafita:Bututun P265GH + 316L mai rufi (ba shi da sumul).
Sakamako:Na wuce kimantawar 100% UT da daidaiton hydrogen.
Bututun Allura na CCUS-EOR CO₂ 7.5
Misali:Daqingaikin amfani da kuma adana carbon.
Kalubale:Busasshen CO₂ tare da ƙazanta yana buƙatar saman ciki mai jure tsatsa, tare da matsin lamba mai yawa.
Mafita:Bututun X65 + 316L mai rufi (an haɗa shi da zafi).
Sakamako:An samar da bututu mai tsawon kilomita 12, wanda yanzu haka ana amfani da shi wajen allurar riga.
8. Tambayoyin da Ake Yawan Yi (Tambayoyin da Ake Yawan Yi)
T1: Menene ainihin bambanci tsakanin bututun da aka lulluɓe da ƙarfe da bututun da aka lulluɓe da injina?
A: Bututun da aka haɗa da ƙarfe yana da layin yaɗuwa na matakin atomic (ƙarfin yankewa >200 MPa). Ba zai wargaje ba a lokacin zagayowar zafi ko bugun matsin lamba. Bututun da aka yi wa layi a cikin injina ya dogara ne akan dacewa da gogayya - yana iya kumbura, rugujewa ko rabuwa lokacin da aka yi zafi ko aka yi keke. Don mahimman ayyukan mai da iskar gas, hydrogen, ko ruwa mai zurfi, koyaushe zaɓi haɗin ƙarfe.
Q2: Wanne tsari ne ke ba da ƙarfin haɗin gwiwa mafi girma?
A: Simintin centrifugal da extrusion mai zafi (ba tare da sumul ba) yawanci yana ba da ≥300 MPa. Haɗin birgima mai zafi yana ba da 200–260 MPa. Dukansu sun dace da bututun API 5LD da aka tabbatar. Rufin fashewa yana ba da 200–280 MPa tare da haɗin igiyar ruwa.
Q3: Za ku iya yin bututun da aka lulluɓe da titanium ko zirconium na ciki?
A: Eh, amma galibi ana samar da su ta hanyar amfani da abin rufe fuska mai fashewa da kuma birgima a faranti. Lokacin da aka yi amfani da shi ya fi tsayi. Muna da gogewa a bututun ƙarfe mai rufi da titanium don sanyaya ruwan teku da masana'antun sinadarai.
T4: Ta yaya kuke hana tsatsa a wurin walda a haɗin gwiwa?
A: Muna bayar da man shafawa na CRA (walda mai ɗaurewa) a kan bututun bevel. Wannan yana ƙara wani Layer na ƙarfe mai cike da ƙarfe (misali, Alloy 625) a kan fuskar bevel, yana hana narkewar CRA ta hanyar ƙarfen carbon yayin walda a filin. Haɗin walda yana da juriyar tsatsa daidai da jikin bututun.
T5: Waɗanne takardu kuke bayarwa?
A: Muna bayar da cikakken fayil mai inganci kamar yadda aka bayyana a Sashe na 5.6. Ga umarnin da aka duba na ɓangare na uku, muna bayar da takaddun shaida na EN 10204 Type 3.2 wanda hukumar dubawa ta sanya hannu a kai.
Q6: Menene lokacin jagora na yau da kullun?
A: Don haɗuwa ta yau da kullun (misali, X65+316L, an haɗa shi da hot roll): oda ta farko makonni 8-12, maimaita oda makonni 6-8. Don bututun da aka lulluɓe da sumul (centrifugal + extrusion): makonni 12 16 don oda ta farko. Alloys na musamman (titanium, Hastelloy) ƙara makonni 4-6.
Q7: Shin kuna karɓar ƙananan umarni na gwaji?
A: Eh. Za mu iya farawa da mita 20-30 don cancanta ko gwaji mai lalata. Lokacin da aka bayar da umarnin gwaji na iya ɗan fi tsayi saboda saitin.
9. Marufi da jigilar kaya
●Kariyar saman:Man da ke hana tsatsa a saman waje na ƙarfe; saman ciki na CRA ya kasance bushe ko kuma an rufe shi da nitrogen.
●Ƙarshen maƙallan:Murfu masu kauri na filastik da aka ɗaure da madaurin ƙarfe.
● Haɗawa:Ga ƙananan diamita (har zuwa inci 8), an yi amfani da fakitin hex tare da na'urorin ɗimbin katako. Don manyan diamita, ana amfani da kujerun da aka ɗora wa mutum ɗaya.
● Kunshin kwantena:Kwantena masu tsawon inci 20 ko 40 tare da jakunkunan dunnage da madaurin ƙarfe.
● Rak ɗin da aka sassaka/faɗi:Don babban diamita (≥24″) ko bututun bango mai nauyi.
● Alamar:Stencil ga API 5LD / buƙatun abokin ciniki. Ana iya gano lambar zafi a kowane mita.
10. Tuntuɓi Womic Steel – Mai ƙera Bututun Rufi naka
Kana neman mai ƙera bututun da aka yi da hannu wanda zai iya shiryar da kai kan tsarin haɗa kayan, haɗa kayan, da kuma matakin dubawa? Tuntuɓe mu da sharuɗɗan aikinka.
Yanar Gizo: www.womicsteel.com
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Womic Steel – An ƙera mafita na bututu mai rufi mai nauyin lita 316 don hidimar CO₂, tukunyar jirgi, na'urar musayar zafi, ƙarancin zafin jiki, da aikace-aikacen zafin jiki mai yawa.
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