Imininingwane ejwayelekile
I-API 5Lngokuvamile kubhekisela endinganisweni yokusebenza kwamapayipi ensimbi yepayipi. Amapayipi ensimbi yepayipi afaka amapayipi ensimbi angenamthungo kanye namapayipi ensimbi ahlanganisiwe. Njengamanje, izinhlobo zamapayipi ensimbi ahlanganisiwe asetshenziswa kakhulu kumapayipi kawoyela zifaka ipayipi elihlanganisiwe elihlanganisiwe eliyi-spiral (SSAW), ipayipi elihlanganisiwe elihlanganisiwe elihlanganisiwe eliqondile (LSAW), kanye nepayipi elihlanganisiwe eliqinile lokumelana nogesi (ERW). Amapayipi ensimbi angenamthungo ngokuvamile akhethwa lapho ububanzi bepayipi bungaphansi kuka-152mm.
Amapayipi ensimbi ajwayelekile kazwelonke e-GB/T 9711-2011 ezinhlelo zokuthutha zamapayipi embonini kawoyela negesi ahlanganiswe ngokusekelwe ku-I-API 5L.
I-GB/T 9711-2011 icacisa izidingo zokukhiqiza zamapayipi ensimbi angenamthungo kanye namapayipi ensimbi ahlanganisiwe emazingeni amabili okucaciswa komkhiqizo (i-PSL1 kanye ne-PSL2) asetshenziswa ezinhlelweni zokuthutha amapayipi ezimboni kawoyela negesi. Ngakho-ke, leli zinga lisebenza kuphela kumapayipi ensimbi angenamthungo kanye namapayipi ensimbi ahlanganisiwe okuthuthwa kukawoyela negesi, futhi alisebenzi kumapayipi ensimbi ahlanganisiwe.
Ibanga lensimbi
Amazinga ensimbi eluhlazaI-API 5LAmapayipi ensimbi afaka phakathi insimbi yepayipi i-GR.B, X42, X46, X52, X56, X60, X70, X120. Amazinga ensimbi ahlukene amapayipi ensimbi anezidingo ezahlukene zezinto zokusetshenziswa kanye nokukhiqizwa, kodwa okulingana nekhabhoni phakathi kwamazinga ensimbi ahlukene kulawulwa ngokuqinile.
Izinga Lekhwalithi
Ku-API 5L steel pipe standard, amazinga ekhwalithi (noma izidingo) zamapayipi ensimbi ahlukaniswe yi-PSL1 kanye ne-PSL2. I-PSL yisifinyezo sezinga lokucaciswa komkhiqizo.
I-PSL1 inikeza izidingo zekhwalithi yepayipi lensimbi elijwayelekile; i-PSL2 inezela izidingo ezidingekayo zokwakheka kwamakhemikhali, ukuqina kwe-notch, izakhiwo zamandla kanye ne-NDE eyengeziwe.
Izinga lepayipi lensimbi lepayipi lensimbi le-PSL1 (igama elibonisa izinga lamandla lepayipi lensimbi, njenge-L290, 290 libhekisela emandleni amancane okukhiqiza emzimbeni wepayipi angama-290MPa) kanye nezinga lensimbi (noma izinga, njenge-X42, lapho u-42 emele amandla amancane okukhiqiza noma indilinga ephezulu. Amandla amancane okukhiqiza epayipi lensimbi (ku-psi) afana nalawo epayipi lensimbi. Lakhiwe ngezinhlamvu noma inombolo exubile yezinhlamvu nezinombolo ezikhomba izinga lamandla epayipi lensimbi, futhi izinga lensimbi lihlobene nokwakheka kwamakhemikhali ensimbi.
Amapayipi ensimbi e-PSL2 akhiwe ngezinhlamvu noma inhlanganisela yezinhlamvu nezinombolo ezisetshenziselwa ukuhlonza izinga lamandla epayipi lensimbi. Igama lensimbi (ibanga lensimbi) lihlobene nokwakheka kwamakhemikhali ensimbi. Liphinde lihlanganise uhlamvu olulodwa (R, N, Q noma M) olwakha isijobelelo, esibonisa isimo sokulethwa. Ku-PSL2, ngemva kwesimo sokulethwa, kukhona nohlamvu S (indawo yesevisi ye-asidi) noma u-O (indawo yesevisi yasolwandle) ekhombisa isimo sesevisi.