Yipayipi lensimbi elingenamthungo okumele lihlangabezane nezidingo zokwakheka kwamakhemikhali kanye nempahla yemishini yeBanga B le-API 5L, i-ASTM A106, kanye ne-ASTM A53 ngesikhathi esifanayo.
Lolu hlobo lwepayipi lungasetshenziswa kalula kumaphrojekthi ahlukene ngaphandle kokukhathazeka ngezinkinga zokuhambisana ezijwayelekile. Luphinde lwenze kube lula ukuphathwa kwempahla ngokunciphisa isidingo sokuthenga amashubhu anezindinganiso eziningi ezahlukene.
Qaphela: Kubalulekile ukuqaphela ukuthi i-API 5L GR.B lapha ibhekisela ku-API 5L PSL1 grade B.
Insimbi yeBotopingumkhiqizi ohamba phambili wamapayipi ensimbi kanye nomthengisi wezimpahla eShayina, ogxile ekukhiqizweni nasekuhlinzekweni kwamapayipi ensimbi yekhabhoni angenamthungo ayindilinga okusetshenziswa koketshezi kanye namafutha. Selokhu sasungulwa ngo-2014, imikhiqizo yethu ithunyelwe emazweni amaningi nasezifundeni ezifana ne-Australia, iCanada, i-India, i-Saudi Arabia, njalo njalo, futhi siqoqe ulwazi olucebile kwezohwebo lwamazwe ngamazwe.
Sakha amapayipi ensimbi ngokuhambisana ngokuqinile nezindinganiso zomhlaba wonke njenge-API 5L, i-ASTM A106, kanye ne-ASTM A53 ukuqinisekisa imikhiqizo esezingeni eliphezulu nejwayelekile. Uhla lwemikhiqizo luhlanganisa amapayipi ensimbi angenamthungo anobubanzi bangaphandle obusukela ku-10.3 - 660 mm kanye nobukhulu obusukela ku-2 - 100 mm.
Njengoba sinamapayipi ensimbi angenamthungo angaphezu kwamathani angu-8,000 esitokweni, siyakwazi ukuqinisekisa ukulethwa ngokushesha kosayizi abajwayelekile. Ngezinhlobo nosayizi abakhethekile, siphinde sinikeze nezinsizakalo zokukhiqiza ezenzelwe wena ukuze kuhlangatshezwane nezidingo ezithile zamakhasimende.
Amashubhu ensimbi angenamthungoZenziwa ngezinqubo ezimbili eziyinhloko: ukuqeda okushisayo kanye nokudweba okubandayo.
I-DN ≤ 40 ingenza ukudweba okuqediwe okushisayo noma okubandayo, ikakhulukazi okubanda.
I-DN ≥ 50 kufanele iqedwe ngokushisa. Amashubhu ensimbi adonswa ngokubandayo angenamthungo nawo ayatholakala uma ucela.
| Ububanzi obujwayelekile | I-DN 6- 650 [NPS 1/8 - 26] |
| Ububanzi Bangaphandle Obucacisiwe | 10.3 - 660 mm [0.405 - 26 in.] |
| Isigaba Sesisindo | I-STD (Ejwayelekile), i-XS (Eqinile Kakhulu), i-XXS (Eqinile Kakhulu Kabili) |
| Inombolo Yeshejuli | Ishejuli 10, Ishejuli 20, Ishejuli 30, Ishejuli 40, Ishejuli 60, Ishejuli 80, Ishejuli 100, Ishejuli 120, Ishejuli 140, Ishejuli 160, |
Ukuze kuqinisekiswe ukuthi ipayipi lihlangabezana nezidingo zokwakheka kwamakhemikhali zeBanga B lazo zonke izindinganiso ezintathu, i-API 5L, i-ASTM A106, kanye ne-ASTM A53, ukwakheka kwamakhemikhali kwezinto kumele kulawulwe ngokuqinile ngesikhathi senqubo yokukhiqiza. Okulandelayo yizidingo ezithile zokwakheka kwamakhemikhali kwalezi zindinganiso ezintathu:
Ukwakheka Kwamakhemikhali kwe-API 5L Grade B
Ukwakheka Kwamakhemikhali e-ASTM A106 Grade B
Ukwakheka Kwamakhemikhali e-ASTM A53 Grade B
| Ukuhlolwa | I-API 5L PSL1 Ibanga B | I-ASTM A106 Ibanga B | I-ASTM A53 Ibanga B | |
| Amandla okukhiqiza, ubuncane | I-MPa [psi] | 245 [35,500] | 240 [35,000] | 240 [35,000] |
| Amandla okudonsa, ubuncane | I-MPa [psi] | 415 [60,200] | 415 [60,000] | 415 [60,000] |
Ukuqhathaniswa kwezimfuneko zemishini zeBanga B ku-API 5L, ASTM A106, kanye ne-ASTM A53 kukhombisa ukuthi zinezidingo ezifanayo zokuqina kokudonsa kanye nokukhiqiza. Lokhu kuvumelana kuyisisekelo sokushintshana kwalezi zindinganiso futhi kuqinisekisa ukuthi imikhiqizo yeshubhu ingasetshenziswa ezinhlotsheni eziningi zezicelo ngaphandle kokukhathazeka ngezakhiwo ezingalingani.
Ukuhlolwa Kwezakhiwo Zemishini
Ukuhlolwa Kwezakhiwo Zemishini
Ngaphezu kokuhlinzeka ngamapayipi ensimbi angenamthungo asezingeni eliphezulu,Insimbi yeBotopinikeza izinsizakalo eziningi zokumboza ubuso ukuze kuhlangatshezwane nezidingo ezahlukene zokuvikela ukugqwala kanye nezimo zemvelo.
Izembozo zamapayipi ensimbi zivame ukuhlukaniswa zibe ukuvikelwa kwesikhashana kanye nokuvimbela ukugqwala kwesikhathi eside. Sivame ukubona ipayipi lensimbi elingenamthungo limbozwe ngesembozo esimnyama, esisetshenziselwa ukuhlinzeka ngokuvikelwa kwesikhashana ukunciphisa ukugqwala ngesikhathi sokuthuthwa kolwandle kanye nokugcinwa kwepayipi.
Izinhlobo ezivamile zokumboza ukuvikela ukugqwala zifaka phakathiupende, i-hot dip galvanizing, 3LPE, I-FBE, nabanye. Ukukhetha ungqimba olufanele akusizi nje kuphela ukwandisa impilo yepayipi lensimbi kodwa futhi kunciphisa ngempumelelo izindleko zokusebenza zizonke.
Amapayipi ensimbi angenamthungo e-API 5L, ASTM A106, kanye ne-ASTM A53 Grade B avame ukusetshenziswa ezinhlelweni zamapayipi ukuze kuthuthwe umusi, amanzi, igesi, nomoya. Lawa mapayipi afaneleka futhi ekwenzeni ama-gond, ama-flange, kanye neminye imisebenzi yokwakha.
I-Botop Steel ibilokhu igcizelela ukuthi ikhwalithi iyisisekelo sebhizinisi, esikholelwa ukuthi kuyisihluthulelo sokuzuza ukwethenjwa kwamakhasimende nokuqashelwa emakethe. Embonini yesikhathi eside, siqoqe ulwazi olucebile kanye namacala amaningi aphumelelayo.
