I-API 5L ngokuvamile ibhekisela ezingeni lokusetshenziswa kwamapayipi omugqa, okuyipayipi elisetshenziselwa ukuthutha uwoyela, umusi, amanzi, njll. elikhishwe emhlabathini liye emabhizinisini ezimboni kawoyela negesi yemvelo. Amapayipi omugqa afaka amapayipi ensimbi angenamthungo namapayipi ensimbi ahlanganisiwe. Njengamanje, izinhlobo zamapayipi ensimbi ahlanganisiwe ezisetshenziswa kakhulu emapayipini kawoyela eShayina zifaka ipayipi elihlanganisiwe le-spiral elingaphansi komhlaba (SSAW), ipayipi elihlanganisiwe le-arc elingaphansi komhlaba (LSAW), kanye nepayipi elihlanganisiwe lokumelana nogesi (ERW). Amapayipi ensimbi yomthungo ngokuvamile akhethwa lapho ububanzi bepayipi bungaphansi kuka-152mm.

Kunezinhlobo eziningi zezinto zokusetshenziswa zamapayipi ensimbi e-API 5L: GR.B, X42, X46, X52, X56, X60, X70, X80, njll. Manje izimayini ezinkulu zensimbi ezifana neBaosteel zithuthukise izinhlobo zensimbi zensimbi yamapayipi e-X100, X120. Izinhlobo ezahlukene zensimbi zamapayipi ensimbi zinezidingo eziphakeme zezinto zokusetshenziswa kanye nokukhiqizwa, futhi okulingana nekhabhoni phakathi kwamazinga ensimbi ahlukene kulawulwa ngokuqinile.

Njengoba wonke umuntu azi nge-API 5L, kunezindinganiso ezimbili, i-PSL1 kanye ne-PSL2. Nakuba kunomehluko wamagama owodwa kuphela, okuqukethwe kwalezi zindinganiso ezimbili kuhluke kakhulu. Lokhu kufana nezindinganiso ze-GB/T9711.1.2.3. Zonke zikhuluma ngento efanayo, kodwa izidingo zihlukile kakhulu. Manje ngizokhuluma ngomehluko phakathi kwe-PSL1 kanye ne-PSL2 ngokuningiliziwe:

1. I-PSL yisifinyezo sezinga lokucaciswa komkhiqizo. Izinga lokucaciswa komkhiqizo wepayipi lomugqa lihlukaniswe nge-PSL1 kanye ne-PSL2, kungashiwo nokuthi izinga lekhwalithi lihlukaniswe nge-PSL1 kanye ne-PSL2. I-PSL2 iphakeme kune-PSL1. Lawa mazinga amabili okucaciswa awafani nje kuphela ngezidingo zokuhlola, kodwa futhi nangokwakheka kwamakhemikhali kanye nezakhiwo zemishini. Ngakho-ke, lapho u-oda ngokwe-API 5L, imigomo enkontilekeni akufanele ibonise kuphela izinkomba ezijwayelekile ezifana nokucaciswa kanye namazinga ensimbi. , Kumelwe futhi kubonise izinga lokucaciswa komkhiqizo, okungukuthi, i-PSL1 noma i-PSL2. I-PSL2 iqinile kune-PSL1 ngezinkomba ezifana nokwakheka kwamakhemikhali, izakhiwo zokudonsa, amandla omthelela, kanye nokuhlolwa okungonakalisi.

2, i-PSL1 ayidingi ukusebenza komthelela, i-PSL2 wonke amamaki ensimbi ngaphandle kwe-x80, isilinganiso esiphelele se-0℃ Akv: ubude obude ≥ 41J, obunqamulayo ≥ 27J. Isilinganiso sensimbi ye-X80, isilinganiso esiphelele se-0℃ Akv: ubude obude ≥ 101J, obunqamulayo ≥ 68J.

3. Amapayipi omugqa kufanele ahlolwe ingcindezi yamanzi ngalinye ngalinye, futhi indinganiso ayisho ukuthi kufanele kuvunyelwe ingcindezi yamanzi engasetshenziswa njengesivivinyo esingonakalisi. Lokhu futhi umehluko omkhulu phakathi kwendinganiso ye-API kanye nendinganiso yaseShayina. I-PSL1 ayidingi ukuhlolwa okungabhubhisi, i-PSL2 kufanele ibe ukuhlolwa okungabhubhisi ngalinye ngalinye.