Standard specifications
API 5Lkazhinji inoreva chiyero chekuuraya kwepombi dzesimbi pombi. Pombi dzesimbi dzepaipi dzinosanganisira mapaipi esimbi asina musono uye mapaipi esimbi akasungwa. Parizvino, anowanzo shandiswa welded simbi pombi mhando pamapaipi emafuta anosanganisira spiral submerged arc welded pombi (SSAW), yakatwasuka musono yakanyura arc welded pombi (LSAW), uye yemagetsi kuramba welded pombi (RW). Mapombi esimbi asina musono anowanzo kusarudzwa kana pombi dhayamita isingasviki 152mm.
Iyo yenyika standard GB/T 9711-2011 Simbi mapaipi emafuta uye gasi indasitiri pombi yekufambisa masisitimu inoumbwa zvichienderanaAPI 5L.
GB/T 9711-2011 inotsanangura zvinodikanwa zvekugadzira zvepombi dzesimbi dzisina musono uye pombi dzesimbi dzakashongedzwa pamatanho maviri echigadzirwa (PSL1 nePSL2) anoshandiswa muoiri negasi mumaindasitiri ekufambisa mapaipi ekufambisa. Naizvozvo, chiyero ichi chinoshanda chete kumapombi esimbi asina musono uye mapombi esimbi akakwenenzverwa ekufambisa oiri negesi, uye haashande kumapombi esimbi.
Simbi giredhi
The raw material simbi mamakisi eAPI 5Lsimbi nyere dzinosanganisira GR.B, X42, X46, X52, X56, X60, X70, X120 pombi simbi. Yakasiyana simbi mamakisi emapombi esimbi ane zvinodiwa zvakasiyana zvezvakagadzirwa uye kugadzirwa, asi iyo kabhoni yakaenzana pakati peakasiyana simbi mamakisi inodzorwa zvakanyanya.
Quality Standard
Mune iyo API 5L simbi pombi mwero, zviyero zvemhando (kana zvinodiwa) zvemapombi esimbi zvakakamurwa kuita PSL1 uye PSL2. PSL ndiyo chidimbu cheyero yechigadzirwa.
PSL1 inopa zvakajairika pombi simbi pombi yemhando zvinodiwa; PSL2 inowedzera zvinosungirwa zvinodiwa zvemakemikari kuumbwa, notch kuoma, simba zvivakwa uye yekuwedzera NDE.
Simbi pombi giredhi yePSL1 simbi pombi (zita rinoratidza simba pamwero wepombi yesimbi, yakadai seL290, 290 inoreva kushoma kwegoho remuviri wepombi i290MPa) uye giredhi resimbi (kana giredhi, seX42, apo 42 inomiririra kushoma goho simba kana denderedzwa rekumusoro Iyo shoma pombi pombi inofanana neiyo p. inoumbwa nemavara kana nhamba yakasanganiswa yemavara nenhamba dzinoratidza simba remupombi wesimbi, uye giredhi resimbi rinoenderana nekemikari yesimbi.
PSL2 mapaipi esimbi anoumbwa nemavara kana musanganiswa wemabhii nenhamba dzinoshandiswa kuratidza kusimba kwepombi yesimbi. Zita resimbi (simbi giredhi) rinoenderana nekemikari yesimbi. Inosanganisirawo tsamba imwe chete (R, N, Q kana M) inoumba suffix, iyo inoratidza mamiriro ekutumira. Kune PSL2, mushure memamiriro ekutumira, kune zvakare tsamba S (asidhi sevhisi nharaunda) kana O (marine service environment) inoratidza chimiro chebasa.