He aha ka API 5L?

ʻO ka API 5L ka mea maʻamau i ka hoʻokō maʻamau no nā paipu kila pipeline, e komo pū ana i ʻelua mau ʻāpana:paipu kila ʻoleapaipu kila welded. I kēia manawa, ʻo nā ʻano paipu kila welded maʻamau i nā pipelines ailanā paipu i hoʻoheheʻe ʻia arc submerged(SSAW PIPE),nā paipu wiliwili lōʻihi lōʻihi(LSAW PIPE), apaipu wiliwili pale uila(RW). Ua koho pinepine ʻia nā paipu kila ʻole i ka emi ʻana o ke anawaena pipeline ma mua o 152mm.

 

ʻO ke kūlana aupuni GB / T 9711-2011, Steel Pipes no Pipeline Transportation Systems in Petroleum and Natural Gas Industries, i kūkulu ʻia ma muli o API 5L.

 

Hōʻike ʻo GB / T 9711-2011 i nā koi hana no nā paipu kila maʻemaʻe a welded i hoʻohana ʻia i ka ʻaila a me nā ʻōnaehana hoʻokele pipeline kūlohelohe, e uhi ana i ʻelua pae kikoʻī huahana (PSL1 a me PSL2). No laila, pili wale kēia maʻamau i nā paipu kila ʻole a welded no ka lawe ʻana i ka aila a me ke kinoea a ʻaʻole pili i nā paipu hao.

 

Papa kila

Hoʻohana ʻia nā paipu kila API 5L i nā māka waiwai maka me GR.B, X42, X46, X52, X56, X60, X70, X80, a me nā mea ʻē aʻe. Ua kūkulu ʻia nā kila paipu me nā māka X100 a me X120. Hoʻokomo nā māka kila like ʻole i nā koi ʻokoʻa i nā mea maka a me nā kaʻina hana.

 

Nā Kūlana Kūlana

I loko o ka API 5L maʻamau, hoʻokaʻawale ʻia ka maikaʻi o ke kila pipeline e like me PSL1 a i ʻole PSL2. Kū ka PSL no ka pae kikoʻī o ka huahana.
Hōʻike ʻo PSL1 i nā koi maʻamau no ka pipeline steel; Hoʻohui ʻo PSL2 i nā koi koi no ka haku mele ʻana, ka paʻakikī notch, nā waiwai ikaika, a me ka hoʻāʻo NDE hou.