Ngā whakaritenga paerewa

Ko te API 5L e pā ana ki te paerewa whakatinanatanga mō ngā paipa raina. Kei roto i ngā paipa raina ngā paipa rino kore hononga me ngā paipa rino whakarewa. I tēnei wā, ko ngā momo paipa rino whakarewa e whakamahia whānuitia ana i runga i ngā paipa hinu ko te paipa whakarewa pewa hurihuri (SSAW), te paipa whakarewa pewa hurihuri hononga tika (LSAW), me te paipa whakarewa ātete hiko (ERW). Ko ngā paipa rino kore hononga ka tīpakohia i te nuinga o te wā ina iti iho i te 152mm te diameter o te paipa.

Ko ngā paipa maitai paerewa ā-motu GB/T 9711-2011 mō ngā pūnaha kawe paipa o te umanga hinu me te hau, i hangaia i runga i te API 5L.

GB/T 9711-2011 e whakamārama ana i ngā whakaritenga hanga mō ngā paipa rino kore hononga me ngā paipa rino whakarewa i ngā taumata whakatakotoranga hua e rua (PSL1 me PSL2) e whakamahia ana i roto i ngā pūnaha kawe paipa ahumahi hinu me te hau. Nō reira, ka pā noa tēnei paerewa ki ngā paipa rino kore hononga me ngā paipa rino whakarewa mō te kawe hinu me te hau, ā, kāore e pā ki ngā paipa rino maka.

Te taumata maitai

Ko ngā taumata maitai o ngā rauemi mata oAPI 5Lko ngā paipa rino ko GR.B,X42, X46, X52, X56, X60, X70, X80, me ētahi atu. He rerekē ngā whakaritenga mō ngā rauemi mata me te hanga o ngā paipa maitai rerekē, engari ko te ōritenga waro i waenga i ngā momo maitai rerekē ka tino whakahaerehia.

Paerewa Kounga

I roto i te paerewa paipa maitai API 5L, ka wehea ngā paerewa kounga (ngā whakaritenga rānei) o ngā paipa maitai ki te PSL1 me te PSL2. Ko te PSL te whakarāpopototanga o te taumata whakatakotoranga hua.

E whakarato ana a PSL1 i ngā whakaritenga whānui mō te kounga paipa maitai; e tāpiri ana a PSL2 i ngā whakaritenga ā-ture mō te hanganga matū, te pakari o te kohao, ngā āhuatanga kaha me te NDE tāpiri.

Ko te taumata paipa rino o te paipa rino PSL1 (ko te ingoa e tohu ana i te taumata kaha o te paipa rino, pērā i te L290, ko te 290 e pā ana ki te kaha tuku iti rawa o te tinana paipa ko te 290MPa) me te taumata rino (te taumata rānei, pērā i te X42, ko te 42 te tohu o te kaha tuku iti rawa, te porowhita whakarunga rānei. Ko te kaha tuku iti rawa o te paipa rino (i roto i te psi) he rite ki te paipa rino. He mea tito mai i ngā reta, i te maha whakauru rānei o ngā reta me ngā tau e tohu ana i te taumata kaha o te paipa rino, ā, e pā ana te taumata rino ki te hanganga matū o te rino.

Ko ngā paipa maitai PSL2 he mea tito mai i ngā reta, i te huinga rānei o ngā reta me ngā tau hei tautuhi i te taumata kaha o te paipa maitai. E pā ana te ingoa maitai (te taumata maitai) ki te hanganga matū o te maitai. Kei roto hoki he reta kotahi (R, N, Q, M rānei) hei hanga i tētahi whakamutunga, e tohu ana i te tūnga tuku. Mō PSL2, i muri i te tūnga tuku, kei reira anō te reta S (taiao ratonga waikawa) me te O rānei (taiao ratonga moana) e tohu ana i te tūnga ratonga.

Whakataurite Paerewa Kounga

1. He teitei ake te paerewa kounga o PSL2 i tērā o PSL1. Ehara i te mea he rerekē noa ngā whakaritenga tirotiro o ēnei taumata whakatakotoranga e rua, engari he rerekē anō hoki ngā whakaritenga mō te hanganga matū me ngā āhuatanga miihini. Nō reira, i te wā e tono ana i runga i te API 5L, me tohu noa ngā tikanga o te kirimana i ngā whakatakotoranga, ngā tohu maitai, me ētahi atu. Haunga ngā tohu noa, me tohu anō hoki te taumata whakatakotoranga hua, arā, ko PSL1, ko PSL2 rānei. He tino pakari ake a PSL2 i a PSL1 i runga i te hanganga matū, ngā āhuatanga kume, te kaha pānga, te whakamātautau kore-whakangaro me ētahi atu tohu.

2. Kāore e hiahiatia ana e PSL1 te kaha pānga. Mō ngā momo maitai katoa o PSL2 engari ko te momo maitai X80, ko te rahi katoa o te toharite Akv 0℃: roa ≥101J, whakawhiti ≥68J.

3. Me whakamātautau takitahi ngā paipa raina mō te pēhanga waipēhi, ā, kāore te paerewa e whakatau ana kia whakaaetia te whakakapinga kore-whakangaro o te pēhanga wai. He rerekētanga nui anō hoki tēnei i waenga i ngā paerewa API me ngā paerewa Hainamana. Kāore a PSL1 e hiahia ki te tirotiro kore-whakangaro, engari ko PSL2 e hiahia ana ki te tirotiro kore-whakangaro takitahi.