Ipayipi Lensimbi le-A252 GRADE 2 Lamapayipi Egesi Angaphansi Komhlaba

Incazelo emfushane:

Uma kukhulunywa ngokufakwa kwamapayipi egesi angaphansi komhlaba, esinye sezici ezibaluleke kakhulu ukukhetha indlela yokushisela yokuxhuma amapayipi.Ukushisela i-Arc Ecmerged Helical (HSAW) iyindlela ethandwayo yokushisela esetshenziswa ukuhlanganisa ipayipi lensimbi le-A252 Grade 2 ekufakweni kwamapayipi egesi angaphansi komhlaba. Le ndlela inikeza izinzuzo eziningana, okuhlanganisa ukusebenza kahle kokushisela okuphezulu, ubuqotho obuhle besakhiwo, kanye nokuthembeka kwesikhathi eside.

Sithumelele i-imeyili

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Uma kukhulunywa ngokufakwa kwamapayipi egesi angaphansi komhlaba, esinye sezici ezibaluleke kakhulu ukukhetha indlela yokushisela yokuxhuma amapayipi.Ukushisela i-Arc Ecmerged Helical(HSAW) iyindlela ethandwayo yokushisela esetshenziswa ukuhlanganisa ipayipi lensimbi le-A252 Grade 2 ekufakweni kwamapayipi egesi angaphansi komhlaba. Le ndlela inikeza izinzuzo eziningana, okuhlanganisa ukusebenza kahle kokushisela okuphezulu, ubuqotho obuhle besakhiwo, kanye nokuthembeka kwesikhathi eside.

Ipayipi lensimbi le-A252 lebanga lesi-2iklanyelwe ngqo ukusetshenziswa ezicini zokucindezela njengokuthutha igesi yemvelo. Lawa mapayipi aziwa ngamandla awo aphezulu okudonseka kanye nokumelana nokugqwala, okwenza abe afanele ukufakwa kwamapayipi egesi angaphansi komhlaba. Kodwa-ke, inqubo yokushisela ibalulekile ekuqinisekiseni ubuqotho kanye nobude besikhathi samapayipi egesi yemvelo.

Impahla Yomshini

	Ibanga 1	Ibanga lesi-2	Ibanga lesi-3
Iphuzu Lokukhiqiza noma amandla okukhiqiza, min, i-Mpa(PSI)	205(30 000)	240(35 000)	310(45 000)
Amandla okudonsa, i-min, i-Mpa(PSI)	345(50 000)	415(60 000)	455(66 0000)

Ukuhlaziywa Komkhiqizo

Insimbi akumele ibe ne-phosphorus engaphezu kuka-0.050%.

Izinguquko Ezivumelekile Ezisindweni Nobukhulu

Ubude ngabunye benqwaba yamapayipi kufanele bulinganiswe ngokwehlukana futhi isisindo sawo akufanele sihluke ngaphezu kuka-15% noma u-5% ngaphansi kwesisindo sawo esicatshangelwayo, kubalwe kusetshenziswa ubude bawo kanye nesisindo sawo ngobude beyunithi ngayinye.

Ububanzi bangaphandle akufanele buhluke ngaphezu kuka-±1% kusuka kububanzi obujwayelekile bangaphandle obubekiwe

Ubukhulu bodonga nganoma yisiphi isikhathi akufanele bube ngaphezu kuka-12.5% ngaphansi kobukhulu bodonga obubekiwe

Ubude

Ubude obungahleliwe obubodwa: 16 kuya ku-25ft (4.88 kuya ku-7.62m)

Ubude obuphindwe kabili obungahleliwe: ngaphezu kwamafidi angu-25 kuya ku-35 (7.62 kuya ku-10.67m)

Ubude obufanayo: ukuhlukahluka okuvunyelwe ±1in

Enye yezinzuzo eziyinhloko zokushisela i-arc engaphansi komhlaba nge-spiral ukusebenza kahle kwayo okuphezulu kokushisela. Le ndlela ivumela amazinga aphezulu okufakwa, okuholela ekushiseleni okusheshayo kanye nokukhiqiza okwandisiwe. Ngenxa yalokho, ukufakwa kwe-amapayipi kaphethiloli angaphansi komhlabakungaqedwa ngesikhathi esifanele, kuncishiswe ukuphazamiseka kanye nesikhathi sokungasebenzi.

Ngaphezu kwalokho, i-HSAW inokwakheka okuhle kakhulu. Inqubo yokushisela idala isibopho esiqinile nesiqhubekayo phakathi kwamapayipi ensimbi e-A252 Grade 2, okuqinisekisa ukuthi amapayipi angakwazi ukumelana nezingcindezi zangaphandle kanye nezimo zemvelo ezivamile ezindaweni ezingaphansi komhlaba. Lokhu kwakheka kubalulekile ekuthuthweni kwegesi yemvelo ngokuphepha nangokuthembekile emabangeni amade.

Ngaphezu kokusebenza kahle kanye nobuqotho besakhiwo, ukushisela i-arc engaphansi komhlaba okuvundlile kunikeza ukuthembeka kwesikhathi eside. Amajoyinti ashisiwe akhiwe kusetshenziswa lobu buchwepheshe anikeza ukuqina okumangalisayo kanye nokumelana nokugqwala, okuqinisekisa ukuthi amapayipi egesi angaphansi komhlaba ahlala esesimweni esihle isikhathi eside. Lokhu kuphila isikhathi eside kubalulekile ekunciphiseni izindleko zokugcinwa nokulungiswa ezihambisana namapayipi egesi yemvelo.

Sekukonke, ukukhetha indlela yokushisela yokujoyina amapayipi ensimbi e-A252 Grade 2 ekufakweni kwamapayipi egesi angaphansi komhlaba kudlala indima ebalulekile ekuphepheni nasekusebenzeni kahle kohlelo lokusatshalaliswa kwegesi. Ukushisela kwe-arc okungaphansi komhlaba okujikelezayo kunikeza izinzuzo ezibalulekile ekusebenzeni kahle kokushisela, ubuqotho besakhiwo kanye nokuthembeka kwesikhathi eside, okwenza kube kuhle kakhulu ekuqinisekiseni ubuqotho bamapayipi egesi angaphansi komhlaba.

Ngamafuphi, ukubaluleka kokushisela i-arc engaphansi komhlaba yepayipi lensimbi i-A252 Grade 2 ekufakweni kwamapayipi egesi angaphansi komhlaba akunakuthathwa kancane. Le ndlela yokushisela inikeza izinzuzo eziningi, okuhlanganisa ukusebenza kahle kokushisela okuphezulu, ubuqotho obuhle kakhulu besakhiwo, kanye nokuthembeka kwesikhathi eside. Ngokukhetha ipayipi lensimbi i-A252 Grade 2 elihlanganisiwe le-HSAW, abafaki bamapayipi egesi bangaqinisekisa ukuthuthwa kwegesi yemvelo okuphephile nokuthembekile iminyaka ezayo.