Ipayipi Elihlanganisiwe Le-Arc Elihlanganisiwe Elihlanganisiwe Elihlanganisiwe Ku-API 5L Line Pipe Applications

Incazelo emfushane:

Emkhakheni wokuthutha uwoyela negesi, ukusetshenziswa kwamapayipi e-arc welded ac welded ac welded kuya ngokuya kuvama, ikakhulukazi ekwakhiweni kwezinhlelo zamapayipi omugqa we-API 5L. Ipayipi le-SSAW (i-arc welded arc welded) laziwa ngamandla alo aphezulu, ukuqina kanye nokuguquguquka, okwenza libe yindawo ekahle kakhulu yezinhlelo ezidinga amandla njengemboni kawoyela negesi.

Sithumelele i-imeyili

Imininingwane Yomkhiqizo

Amathegi Omkhiqizo

IIpayipi lomugqa we-API 5LIndinganiso iyincazelo ethuthukiswe yi-American Petroleum Institute (API) yokuthuthwa kwegesi yemvelo, uwoyela namanzi. Ichaza izidingo zokukhiqiza zamapayipi ensimbi ahlanganisiwe futhi ibeka iziqondiso eziqinile zekhwalithi, amandla kanye nokusebenza kwala mapayipi.

Impahla Yomshini

ibanga lensimbi	amandla amancane okukhiqiza I-Mpa		Amandla okudonsa		Ukwandiswa okuncane %	Amandla amancane omthelela J
ibanga lensimbi	Ubukhulu obucacisiwe mm		Ubukhulu obucacisiwe mm		Ubukhulu obucacisiwe mm	ekushiseni kokuhlolwa kwe-
	16	＞16≤40	＜3	≥3≤40	≤40	-20℃	0℃	20℃
S235JRH	235	225	360-510	360-510	24	-	-	27
S275J0H	275	265	430-580	410-560	20	-	27	-
S275J2H	275	265	430-580	410-560	20	27	-	-
S355J0H	365	345	510-680	470-630	20	-	27	-
S355J2H						27	-	-
S355K2H						40	-	-

Ipayipi le-SSAWKwenziwa kusetshenziswa inqubo yokushisela i-arc engaphansi kwamanzi ehilela ukwakha ikhoyili yensimbi ibe yindilinga bese kusetshenziswa i-arc yokushisela ukuhlanganisa imiphetho yekhoyili ndawonye.

Enye yezinzuzo eziyinhloko zokusebenzisa ipayipi elihlanganisiwe le-arc elifakwe ngaphakathi eliyi-spiral ezisetshenziswayo zamapayipi omugqa we-API 5L yikhono lazo lokubekezelela amazinga aphezulu okucindezela kwangaphakathi nangaphandle. Lokhu kubaluleke kakhulu embonini kawoyela negesi, lapho amapayipi evezwa khona ezimweni ezimbi kakhulu kanye nemithwalo esindayo. Ukwakhiwa okuqinile kwamapayipi e-SSAW kwenza kube kuhle kumapayipi asebenza ngokucindezela okuphezulu namazinga okushisa, okuhlinzeka ngesisombululo esithembekile nesihlala isikhathi eside sokuthuthwa kwezinsiza ezibalulekile.

Ngaphezu kwalokho, ukuguquguquka kwepayipi elihlanganisiwe elifakwe i-spiral submited arc kwenza kube lula ukulifaka nokunakekela, okwenza kube ukukhetha okungabizi kakhulu kumaphrojekthi okwakha amapayipi. Amandla abo okuguquguquka nokuhambisana nemidwebo yemvelo yendawo aqeda isidingo sokukhiqiza ukufakwa ngokwezifiso okubizayo nokuthatha isikhathi futhi kunciphisa ingozi yokuvuza nokwehluleka. Ngaphezu kwalokho, ubuso obubushelelezi bangaphakathi bamapayipi e-SSAW bunciphisa ukungqubuzana nokuxokozela, okuholela ekugelezeni okuphumelelayo kakhulu kanye nokusetshenziswa kwamandla okuphansi.

Ukwakheka Kwamakhemikhali

Ibanga lensimbi		Uhlobo lokususa i-oxidation a	% ngobuningi, ubuningi
Igama lensimbi	Inombolo yensimbi	C	C	Si	Mn	P	S	Nb
S235JRH	1.0039	FF	0,17	—	1,40	0,040	0,040	0.009
S275J0H	1.0149	FF	0,20	—	1,50	0,035	0,035	0,009
S275J2H	1.0138	FF	0,20	—	1,50	0,030	0,030	—
S355J0H	1.0547	FF	0,22	0,55	1,60	0,035	0,035	0,009
S355J2H	1.0576	FF	0,22	0,55	1,60	0,030	0,030	—
S355K2H	1.0512	FF	0,22	0,55	1,60	0,030	0,030	—
a. Indlela yokususa i-oxidation ichazwa kanje: FF: Insimbi ebulewe ngokuphelele equkethe izinto zokubopha i-nitrogen ngamanani anele ukubopha i-nitrogen etholakalayo (isb. ubuncane be-0,020% iyonke i-Al noma i-0,015% i-Al encibilikayo). b. Inani eliphezulu le-nitrogen alisebenzi uma ukwakheka kwamakhemikhali kubonisa okuqukethwe okungenani kwe-Al okungu-0,020% kanye nesilinganiso esincane se-Al/N esingu-2:1, noma uma kukhona ezinye izinto ezibophayo ze-N ezanele. Izinto ezibophayo ze-N kufanele ziqoshwe kuDokhumenti Yokuhlola.

Ngamafuphi, ukusetshenziswa kwepayipi elihlanganisiwe le-spiral submited arc kuzinhlelo zokusebenza zamapayipi omugqa we-API 5L kunikeza uchungechunge lwezinzuzo ezenza kube inketho ekhangayo embonini kawoyela negesi. Amandla azo, ukuqina kanye nokuguquguquka kwazo kuzenza zilungele ukusetshenziswa ezindaweni ezidinga kakhulu, kuyilapho ukulula kwazo ukufakwa kanye nezidingo zokunakekelwa okuphansi kunikeza ikhambi elingabizi kakhulu lamaphrojekthi okwakha amapayipi. Njengoba isidingo sokuthuthwa okuthembekile nokuphumelelayo kukawoyela, igesi yemvelo kanye namanzi siqhubeka nokukhula, ukubaluleka kwepayipi elihlanganisiwe le-spiral submited arc standard ku-API 5L line pipe standard akunakugcizelelwa ngokweqile. Ngokusebenza kwayo okuqinisekisiwe kanye nokuguquguquka,ipayipi le-arc elicwiliswe ngaphakathi elijikelezayokulindeleke ukuthi iqhubeke nokuba yingxenye ebalulekile yengqalasizinda eqhuba umnotho womhlaba.