I-A252 I-Steel 2 I-Pipe yensimbi yamapayipi egesi angaphansi komhlaba

I-A252 I-Steel 2 I-Pipe yensimbi yamapayipi angaphansi komhlaba wegesi efakiwe

Incazelo emfushane:

Uma kukhulunywa ngokufakwa kwegesi ngegesi engaphansi komhlaba, esinye sezici esibucayi kakhulu ukukhetha kwendlela ye-welding ukuxhuma amapayipi.I-arlding yaphansi kwe-arc (HSAW) yindlela edumile ye-welding esetshenziselwa ukujoyina ipayipi lensimbi le-2 le-2 Le ndlela inikeza izinzuzo eziningana, kufaka phakathi ukusebenza kahle kwe-welding, ubuqotho obuhle kakhulu besakhiwo, kanye nokwethembeka kwesikhathi eside.

Thumela i-imeyili kithi

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

Uma kukhulunywa ngokufakwa kwegesi ngegesi engaphansi komhlaba, esinye sezici esibucayi kakhulu ukukhetha kwendlela ye-welding ukuxhuma amapayipi.I-arlding yaphansi kwe-arc(HSAW) yindlela edumile ye-welding esetshenziselwa ukujoyina ipayipi lensimbi le-2 le-2 Le ndlela inikeza izinzuzo eziningana, kufaka phakathi ukusebenza kahle kwe-welding, ubuqotho obuhle kakhulu besakhiwo, kanye nokwethembeka kwesikhathi eside.

I-A252 I-Grade 2 Steel PipeIklanyelwe ngokukhethekile ukusetshenziswa kwizicelo zokucindezela ezifana nokuhambisa igesi yemvelo. Lawa mapayipi ayaziwa ngamandla abo aphezulu ashubile kanye nokuphikiswa kokugqwala, okwenza balungele ukufakwa kwamapayipi angaphansi komhlaba. Kodwa-ke, inqubo ye-welding ibalulekile ekuqinisekiseni ubuqotho obuphelele kanye nokuphila isikhathi eside kwamapayipi egesi yemvelo.

Impahla yemishini

	Ibanga 1	Ibanga 2	Ibanga 3
Ukuvuselela Iphuzu noma Ukuvuna Amandla, Amaminithi, MPA (PSI)	205 (30 000)	240 (35 000)	310 (45 000)
Amandla asheshayo, amaminithi, MPA (PSI)	345 (50 000)	415 (60 000)	455 (66 0000)

Ukuhlaziywa Komkhiqizo

Insimbi izobe ingabi naphezulu kwe-0,050% phosphorous.

Ukuhlukahluka okuvumelekile ezinsimbi nasezilinganiso

Ubude be-pile yepayipi buzosindwa ngokwehlukana futhi isisindo salo ngeke bahlukane ngaphezu kwe-15% ngaphezulu noma i-5% ngaphansi kwesisindo sayo sethiyori, kubalwa kusetshenziswa ubude baso kanye nesisindo sayo ngeyunithi ngayinye ubude

Ububanzi bangaphandle ngeke buhluka kakhulu kune- ± 1% kusuka kububanzi obucacisiwe be-off

Ubukhulu bodonga nganoma yiliphi iphuzu ngeke bungabi ngaphezu kwe-12,5% ngaphansi kobukhulu bedonga olubekiwe

Ubude

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

Ubude obungahleliwe obuphindwe kabili: ngaphezulu kwe-25ft kuya ku-35ft (7.62 kuye ku-10.67m)

Ubude be-Uniform: Ukuhluka okuvumelekile ± 1in

Enye yezinzuzo eziphambili ze-Welding ye-Arc Welding ephakathi nendawo ephansi yokusebenza kahle kwe-welding. Le ndlela inika amandla amanani aphezulu okufakwayo, okuholela ekutheni i-welding esheshayo kanye nokukhiqiza okwandayo. Ngenxa yalokho, ukufakwa kweAmapayipi egesi angaphansi komhlabaIngaqedwa ngendlela efike ngesikhathi, inciphisa ukuphazamiseka nokuphumula.

Ngaphezu kwalokho, i-HSAW inobuqotho obuhle kakhulu besakhiwo. Inqubo ye-welding idala isibopho esiqinile nesiqhubekayo phakathi kwamapayipi ensimbi 2 yebanga lesibili, ukuqinisekisa ukuthi amapayipi angamelana nezingcindezi zangaphandle nezimo zemvelo ezivame ezindaweni ezingaphansi komhlaba. Lokhu kuthembeka kwesakhiwo kubalulekile ukuhambisa ngokuphepha nangokuphepha igesi yemvelo kumabanga amade.

Ngaphezu kokusebenza kahle kanye nobuqotho bezinhlelo, i-arlding ye-arlding ephakathi nendawo ephakathi nendawo ihlinzeka ngokuthembeka kwesikhathi eside. Amalunga we-Welded asungulwa kusetshenziswa lobu buchwepheshe anikela ngokuqina okuhlukile nokumelana nokugqwala, ukuqinisekisa amapayipi egesi angaphansi komhlaba ahlala esesimweni esifanele isikhathi eside. Lokhu kuphila isikhathi eside kubalulekile ukunciphisa izindleko zokulungiswa kanye nokulungisa okuhambisana namapayipi egesi yemvelo.

Sekukonke, ukukhethwa kwendlela ye-welding yokujoyina amapayipi e-A252 ama-2 wensimbi ekufakweni kwegesi engaphansi komhlaba kudlala indima ebalulekile ekuphepheni okuphelele kohlelo lokusabalalisa igesi. Kuvunguza i-arlding engaphakathi kwe-arc

Ngamafuphi, ukubaluleka kwe-A252 Ibanga 2 I-Pipe Pipe Spaneged ARC Welding ekufakweni kwamapayipi angaphansi komhlaba wePipeline akwehliswa. Le ndlela ye-welding inikezela ngezinzuzo eziningi, kufaka phakathi ukusebenza kahle kwe-welding, ubuqotho obuhle kakhulu bokuhleleka, kanye nokwethembeka kwesikhathi eside. Ngokukhetha i-HSAW Welded A252 I-Grade 2 I-Steel Pipe yensimbi, ama-Pid Pipeline Fainet angaqinisekisa ukuthutha okuphephile nokuthembekile kwegesi yemvelo iminyaka ezayo.