Amapuleti Ensimbi e-DH36 kanye ne-EH36 Amapulatifomu Angaphandle Kwaselwandle kanye Nemishini Yangaphansi Kolwandle

Emikhakheni yobunjiniyela basogwini kanye nangaphansi kolwandle, izinto zokwakha kumele zisebenze kahle ngaphansi kwezimo ezimbi kakhulu - kusukela ekucindezelekeni okuphezulu kwemishini kuya emazingeni okushisa aphansi kanye nezimo zamanzi anosawoti anolaka. Phakathi kwezinto ezithembeke kakhulu kulezi zinhlelo zokusebenza ezidinga kakhulu kukhonaAmapuleti ensimbi e-DH36 kanye ne-EH36, izinsimbi zasolwandle ezinamandla aphezulu ezenzelwe ukumelana nemithwalo enamandla, imithelela, kanye nokugqwala okunzima kolwandle. Lezi zinsimbi zibalulekile ekwakhiweni kweamapulatifomu asogwini lolwandle, imishini yokumba uwoyela, izisekelo ze-wind turbine, kanye nemishini yangaphansi kolwandlelapho ukuphepha, ukuqina, kanye nokusebenza kungaxoxiswana ngakho.

At i-sakysteel, sihlinzeka ngesitifiketiAmapuleti ensimbi e-DH36 kanye ne-EH36ezihlangabezana nezindinganiso zokuhlukaniswa kwamazwe ngamazwe (i-ABS, i-LR, i-DNV, i-BV, nabanye) ukusekela ubuqotho besakhiwo samaphrojekthi obunjiniyela basolwandle kanye nolwandle emhlabeni jikelele.

1. Isingeniso ku-DH36 kanye ne-EH36 Steel Grades

I-DH36 kanye ne-EH36ziyingxenye yomndeni we-ASTM A131 wezinsimbi zesakhiwo zasolwandle ezinamandla aphezulu. Nakuba zombili izinhlobo zinikeza amandla afanayo kanye nezici zemishini, umehluko wazo useukuqina komthelela— izinga lokushisa lapho insimbi ingamunca khona amandla ngaphandle kokuqhekeka.

• I-DH36: Umthelela uhlolwe ku--20°C, ofanele izindawo zasolwandle ezibandayo ngokulinganayo.

• I-EH36: Umthelela uhlolwe ku--40°C, okwenzelwe izimo zokushisa eziphansi kakhulu njengemisebenzi yase-Arctic kanye nolwandle olujulile.

Lezi zinhlobo zibonisa amandla aphezulu okubamba nokukhiqiza, ukuqina okumangalisayo, kanye nokushibilika okuhle kakhulu, okwenza zilungele izakhiwo zangaphezulu nangaphansi kolwandle.

2. Ukwakheka Kwamakhemikhali Nezakhiwo Zemishini

Ukwakheka kwamapuleti ensimbi e-DH36 kanye ne-EH36 kulinganiswa ngokucophelela ukuze kutholakale amandla nokuqina ngaphandle kokuphazamisa ukushibilika.

Ukwakheka Kwamakhemikhali Okuvamile:

• Ikhabhoni (C): ≤ 0.18%

• I-Manganese (Mn): 0.90–1.60%

• I-Silicon (Si): 0.10–0.50%

• I-Phosphorus (P): ≤ 0.035%

• Isibabule (S): ≤ 0.035%

• Izinto ezincibilikisayo: Nb, Ti, V (zokulungisa okusanhlamvu nokuqina)

Izakhiwo Zemishini:

• Amandla Okukhiqiza: ≥ 355 MPa

• Amandla Okudonsa: 490–620 MPa

• Ukwelulwa: ≥ 21%

• Ukuqina Komthelela:

  • DH36: ≥ 34 J ku--20°C

  • EH36: ≥ 34 J ku--40°C

Le nhlanganisela iqinisekisa ukumelana okuphezulu kokuqhekeka nokuguqulwa, ngisho nangaphansi kokucindezeleka okushintshashintshayo kanye nokuvezwa okuphansi kwezinga lokushisa.

3. Ukubaluleka Kwensimbi Enamandla Kakhulu Ezingxenyeni Zasogwini

Amapulatifomu kawoyela negesi asogwini abhekene nezinye zezinselele ezinzima kakhulu zemvelo nezokusebenza. Kumelwe amelane namagagasi anamandla, imithwalo yomoya, kanye nemiphumela yokugqwala kwamanzi olwandle, konke lokhu ngenkathi esekela imishini esindayo namapayipi.

Amapuleti ensimbi e-DH36 kanye ne-EH36zisetshenziswa kabanzi ngoba zinikeza:

• Umthamo ophezulu wokuthwala umthwalokwezakhiwo zedekhi nemilenze.

• Ukumelana okuhle kakhulu nokukhathalaezimweni zokulayisha ezijikelezayo.

• Amandla aphezulu omthelelaukuvimbela ukwehluleka kokuqhekeka.

• Ukusebenza okuhlala njalo emazingeni okushisa aphansiezitholakala emanzini ajulile nasezindaweni ezibandayo.

Lezi zici zibenza babe yizinto eziyisisekeloama-rig okufaka amanzi, amapulatifomu acwila kancane, kanye nokufakwa okuzinzile ogwini lolwandle.

4. Isicelo Ezakhiweni Zase-Offshore

a. Izakhiwo ze-Topside kanye ne-Deck

Amapuleti e-DH36 kanye ne-EH36 asetshenziselwa amadekhi kanye nemishayo yokusekela ethwala imishini esindayo, imishini yokubhoboza, kanye nezindawo zokuhlala. Isilinganiso sawo samandla aphezulu kuya kwesisindo sithuthukisa ukuzinza kwesakhiwo ngaphandle kokwandisa isisindo sepulatifomu.

b. Izakhi Zejakethi Nemilenze

Ezinkundleni eziqinile zasogwini lolwandle,imilenze kanye nohlaka lwejakethikumele imelane namandla okucindezela kanye nokugoba avela emagagasini nasemoyeni. Ukuqina kwe-EH36 kuqinisekisa ukusebenza okuthembekile ngisho noma kuvezwa amazinga okushisa amanzi angaphansi kwezinga kanye nokudlidliza okuqhubekayo.

c. Izinhlelo Zokukhiqiza Ezintantayo (i-FPSO, Ama-Rig Angaphansi Kokucwiliswa Okuncane)

Izakhiwo ezintantayo zibhekene nokunyakaza okuqhubekayo kanye nokucindezeleka kokukhathala. Ukumelana okukhulu komthelela we-EH36 kunikeza ukuphepha kwesikhathi eside kwama-shells, ama-pontoon, kanye nezakhiwo zamakholomu.

5. Izicelo Zemishini Yangaphansi Kolwandle

a. Izakhiwo Eziningi Nezakhi Zangaphansi Kolwandle

Imikhumbi-mkhathi engaphansi kolwandle isabalalisa ukugeleza kukawoyela negesi ekujuleni okukhulu. Amandla omthelela aphansi kakhulu e-EH36 aqinisekisa ukuthi lezi zakhiwo zihlala ziphephile ngaphansi kwengcindezi yamanzi kanye nezimo zamanzi abandayo olwandle.

b. Imikhumbi Yokucindezela kanye Namapayipi Angaphansi Kolwandle

I-DH36 kanye ne-EH36 zisetshenziselwa ukwakhaizitsha zokucindezela zangaphansi kolwandle, izikhuphusi, kanye nezisekelo zamapayipi, ukuqinisekisa ubuqotho bomshini ngaphansi kwezingcindezi zangaphakathi ezishintshashintshayo kanye nokucindezeleka kokushisa.

c. Amafreyimu E-Umbilical kanye Nezinhlelo Zokubambelela

Ukuqina kanye nokushibilika kwe-EH36 kwenza kube kuhle kakhulu ezinhlelweni zokubambelela ngaphansi kolwandle kanye nohlaka lokusekela lwenkaba okumele lusebenze ngokuthembekile ezindaweni ezijulile zolwandle.

6. Ukukhiqiza kanye nokusebenza kokushisela

Amapuleti ensimbi e-DH36 kanye ne-EH36bayathandwa ngenxa yaboukushibilika okuhle kakhuluZingakhiwa kusetshenziswa amasu avamile afana nalawa:

• Ukushisela i-Arc Yensimbi Evikelwe (i-SMAW)

• Ukushisela i-Arc Ecwiliswe Ngaphansi (i-SAW)

• Ukushisela i-Gas Metal Arc (GMAW)

• Ukushisela i-Flux-Cored Arc (FCAW)

Okwabookulingana nekhabhoni ephansi (i-CEV)kuqinisekisa izidingo ezincane zokushisa kusengaphambili futhi kunciphisa ingozi yokuqhekeka okubangelwa yi-hydrogen. Lokhu kuzenza zifaneleke ezakhiweni ezinkulu ezihlanganisiwe ezitholakala kubunjiniyela basogwini kanye nangaphansi kolwandle.

At i-sakysteel, wonke amapuleti adlulaukuhlolwa kwe-ultrasound (UT), ukuhlolwa komthelela we-Charpy, kanye nokuqinisekiswa kobukhuluukuqinisekisa ukushibilika okungenaphutha kanye nokufana kwemishini.

7. Ukumelana Nokugqwala Nezingubo Ezivikelayo

Izakhiwo zasemanzini asogwini kanye nangaphansi kolwandle zihlala zivezwa ukugqwala kwamanzi anosawoti, umswakama ophezulu, kanye nomsebenzi wamagciwane. Ukuze kuthuthukiswe ukumelana nokugqwala, amapuleti ensimbi e-DH36 kanye ne-EH36 avame ukuba:

• Kudutshulwe futhi kulungisiwe kahlengaphambi kokulethwa.

• Imbozwe nge-epoxy yolwandle noma ama-primer acebile nge-zinc.

• Kuvikelwe kusetshenziswa izinhlelo ze-cathodicukuvimbela ukugqwala kwe-galvanic.

Lezi zindlela zokwelapha ziqinisekisa impilo yenkonzo ende futhi zinciphisa izindleko zokulungisa ngokuhamba kwesikhathi.

8. Ukusebenza Ezindaweni Eziphansi Zokushisa

Esinye sezici eziphawuleka kakhulu zamapuleti ensimbi e-DH36 ne-EH36 ukuthiukuqina okungavamile kokushisa okuphansiI-EH36, ikakhulukazi, igcina ukuguquguquka kanye nokumelana nomthelela emazingeni okushisa aphansi njengo-40°C, okwenza kube kuhle kakhulu ekusebenzeni kwe-Arctic, imikhumbi ephula iqhwa, kanye nezakhiwo zangaphansi kolwandle olujulile.

Leli khono livimbela ukuqhekeka okuqhekekayo — okuyinkinga enkulu ezindaweni ezibandayo — ukuqinisekisa ukuphepha kokusebenza kanye nobude besikhathi sesakhiwo.

9. Izitifiketi Zenhlangano Yokuhlukaniswa

Amapuleti ensimbi e-DH36 kanye ne-EH36 ahlinzekwe yi-i-sakysteelukuhlangabezana noma ukudlula izidingo zezinhlangano ezinkulu zokuhlela, okuhlanganisa:

• I-ABS (Ihhovisi Lokuthumela LaseMelika)

• I-DNV (Det Norske Veritas)

• Irejista kaLloyd (LR)

• I-Bureau Veritas (BV)

• I-RINA, NK, kanye ne-GL

Izitifiketi ezinjalo ziqinisekisa ukuhambisana nezindinganiso zomhlaba wonke zokwakha zasemanzini nasolwandle, okuqinisekisa ukuthi ipuleti ngalinye lingasetshenziswa ngokuzethemba ezicelweni ezibalulekile zokuthwala imithwalo.

10. Izinzuzo ze-DH36 kanye ne-EH36 zamaphrojekthi ase-Offshore kanye nase-Subsea