Imininingwane ejwayelekile

I-API 5L ngokuvamile ibhekisela kumazinga okusebenza kwepayipi lomugqa. Ipayipi lomugqa lifaka amapayipi ensimbi angenamthungo namapayipi ensimbi ahlanganisiwe. Njengamanje, izinhlobo zamapayipi ensimbi ahlanganisiwe asetshenziswa kakhulu kumapayipi kawoyela zifaka ipayipi elihlanganisiwe le-spiral elingaphansi komhlaba (SSAW), ipayipi elihlanganisiwe le-arc elingaphansi komhlaba (LSAW), kanye nepayipi elihlanganisiwe 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-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 i-GR.B,X42, X46, X52, X56, X60, X70, X80, njll. 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.

Ukuqhathaniswa Okujwayelekile Kwekhwalithi

1. Izinga lekhwalithi le-PSL2 liphakeme kunele-PSL1. Lawa mazinga amabili okucaciswa awagcini nje ngokuba nezidingo zokuhlola ezihlukile, kodwa futhi anezidingo ezihlukile zokwakheka kwamakhemikhali kanye nezakhiwo zemishini. Ngakho-ke, lapho u-oda ngokwe-API 5L, imigomo esenkontilekeni akumele ibonise kuphela imininingwane, amazinga ensimbi, njll. Ngaphezu kwezinkomba ezijwayelekile, izinga lokucaciswa komkhiqizo kumele liboniswe, okungukuthi, i-PSL1 noma i-PSL2. I-PSL2 iqinile kune-PSL1 ngokwesakhiwo samakhemikhali, izakhiwo zokudonsa, amandla omthelela, ukuhlolwa okungabhubhisi kanye nezinye izinkomba.

2. I-PSL1 ayidingi ukusebenza komthelela. Kuzo zonke izinhlobo zensimbi ze-PSL2 ngaphandle kwezinhlobo zensimbi ze-X80, isilinganiso se-Akv esingu-0℃ esigcwele: ubude obude ≥101J, obunqamulelayo ≥68J.

3. Amapayipi omugqa kufanele ahlolwe umfutho we-hydraulic ngamunye ngamunye, futhi indinganiso ayisho ukuthi kuvunyelwe ukufaka esikhundleni umfutho wamanzi ongonakalisi. Lokhu futhi umehluko omkhulu phakathi kwezindinganiso ze-API nezindinganiso zaseShayina. I-PSL1 ayidingi ukuhlolwa okungenakonakalisa, kuyilapho i-PSL2 idinga ukuhlolwa okungenakonakalisa ngamunye ngamunye.