ʻO ka ikaika a me ka hilinaʻi o nā paipu hollow-section Structural paipu: He nānā hohonu i ka Spiral Submerged Arc Welded Pipe a me API 5L Line Pipe
Hoʻolauna:
I ka honua o ke kūkulu ʻana a me ka hoʻomohala ʻana i nā ʻoihana, ʻo ke koho ʻana i nā mea pono he mea koʻikoʻi.ʻO nā paipu kūkulu ʻāpana ʻāwaha he kuleana koʻikoʻi i ka hāʻawi ʻana i ka ikaika, kūpaʻa a me ka hilinaʻi i nā ʻano papahana like ʻole.Ma kēia blog, e ʻimi mākou i nā hiʻohiʻona a me nā pōmaikaʻi o ʻelua ʻano mea nui o ka paipu kūkulu: spiral submerged arc welded pipe a me API 5L line pipe.
Piula wiliwili ʻia i loko o ke ao:
Hoʻohana ʻia ka paipu submerged arc welded (SAW), i ʻike ʻia ʻo SSAW pipe, i nā ʻano hana like ʻole.ʻO ka hiʻohiʻona kūikawā opaipu SSAW ʻO ia kona mau humuhumu spiral, e hāʻawi ana i ka ikaika a me ka hiki ke amo i ka ukana ma mua o nā ʻano paipu ʻē aʻe.Kōkua kēia hoʻolālā kūʻokoʻa i ka puʻunaue like ʻana i ke koʻikoʻi i loko o ka paipu, i mea kūpono no nā papahana e koi ana i ka hoʻonohonoho pono.
Na Pono Mechanical o ka paipu SSAW
kila kila | ikaika hua liʻiliʻi | ka palena iki tensile ikaika | ʻO ka lōʻihi liʻiliʻi |
B | 245 | 415 | 23 |
X42 | 290 | 415 | 23 |
X46 | 320 | 435 | 22 |
X52 | 360 | 460 | 21 |
X56 | 390 | 490 | 19 |
X60 | 415 | 520 | 18 |
X65 | 450 | 535 | 18 |
X70 | 485 | 570 | 17 |
ʻO ka hui kemika o nā paipu SSAW
kila kila | C | Mn | P | S | V+Nb+Ti |
Max % | Max % | Max % | Max % | Max % | |
B | 0.26 | 1.2 | 0.03 | 0.03 | 0.15 |
X42 | 0.26 | 1.3 | 0.03 | 0.03 | 0.15 |
X46 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
X52 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
X56 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
X60 | 0.26 | 1.4 | 0.03 | 0.03 | 0.15 |
X65 | 0.26 | 1.45 | 0.03 | 0.03 | 0.15 |
X70 | 0.26 | 1.65 | 0.03 | 0.03 | 0.15 |
ʻO ka hoʻomanawanui Geometric o nā paipu SSAW
Nā hoʻomanawanui geometric | ||||||||||
anawaena waho | Mānoanoa pā | pololei | waho o ka poepoe | nuipaʻa | ʻO ke kiʻekiʻe o ka weld bead kiʻekiʻe | |||||
D | T | |||||||||
≤1422mm | >1422mm | <15mm | ≥15mm | ka hopena paipu 1.5m | piha loa | kino paipu | paipu hope | T≤13mm | T>13mm | |
±0.5% | e like me ka aelike | ± 10% | ±1.5mm | 3.2mm | 0.2% L | 0.020D | 0.015D | '+10% | 3.5mm | 4.8mm |
Hoʻāʻo Hydrostatic
E kū ka paipu i ka hoʻāʻo hydrostatic me ka ʻole o ka leaka ma o ka weld seam a i ʻole ke kino paipu
ʻAʻole pono e hoʻāʻo hydrostatically nā hui hui, inā ua hoʻāʻo maikaʻi ʻia nā ʻāpana o ka paipu i hoʻohana ʻia no ka hōʻailona ʻana i nā mea hoʻohui i ka hydrostatically ma mua o ka hana ʻana.
Hiki ke huli:
No ka paipu PSL 1, e hoʻokumu ka mea hana a hahai i nā kaʻina hana i kākau ʻia no ka mālama ʻana:
Hōʻike ʻia ka ʻike wela a hiki i kēlā me kēia hoʻokolohua chmical pili a hōʻike ʻia ka conformance me nā koi i kuhikuhi ʻia
Hōʻike ʻia ka ʻike hoʻāʻo a hiki i kēlā me kēia hoʻokolohua mechanical pili a hōʻike ʻia ke kūlike me nā koi i kuhikuhi ʻia
No ka paipu PSL 2, e hoʻokumu a hahai ka mea hana i nā kaʻina hana i kākau ʻia no ka mālama ʻana i ka ʻike wela a me ka ʻike hoʻāʻo no ia paipu.E hāʻawi ia mau kaʻina hana i nā ala no ka ʻimi ʻana i ka lōʻihi o ka paipu i ka ʻāpana hoʻāʻo kūpono a me nā hopena hoʻokolohua pili.
ʻO kekahi o nā pōmaikaʻi nui o ka paipu SSAW ʻo kāna hana maʻalahi.Hiki ke hana ʻia kēia mau paipu i nā ʻano nui, nā anawaena a me nā mānoanoa a hiki ke hoʻopili ʻia e hoʻokō i nā koi o kahi papahana kikoʻī.Eia kekahi, ua hana mau ʻia nā paipu i hoʻopaʻa ʻia i loko o ka wai me ke kila kiʻekiʻe, e hana ana i ka corrosion-resistant a me ka hōʻoia ʻana i ke ola o ka lawelawe ʻana.
Paipu laina API 5L:
API 5L laina paipuhe paipu hollow pauku i hoʻohana nui ʻia e kū ana i nā kūlana American Petroleum Institute (API).Hoʻolālā ʻia kēia mau paipu e lawe i nā wai, e like me ka aila a me ke kinoea maoli, ma kahi lōʻihi.ʻIke ʻia ka paipu laina API 5L no kona ikaika kiʻekiʻe, kūpaʻa a me ke kūpaʻa ʻana i nā kūlana kūlohelohe.
ʻO ke kaʻina hana o ka paipu laina API 5L e pili ana i nā ana mana koʻikoʻi e hōʻoia i kona hilinaʻi.Hana ʻia kēia mau paipu i ke kila kalapona a loaʻa iā lākou nā waiwai mechanical maikaʻi loa.ʻO ka mālama pono ʻana i nā kūlana API e hōʻoiaʻiʻo e hiki i kēia mau paipu ke kūpaʻa i nā piʻi kiʻekiʻe a me nā hoʻololi ʻana o ka mahana, e kūpono ana iā lākou no nā noi koʻikoʻi i ka ʻoihana ʻaila a me ke kinoea.
Nā pōmaikaʻi i hui pū ʻia:
Ke hui pū ʻia ka paipu wiliwili arc submerged a me ka paipu laina API 5L, hāʻawi lākou i ka kūpaʻa a me ka hilinaʻi like ʻole.Hoʻokumu ʻia nā ʻōkuhi spiral o ka paipu SSAW me ka ikaika a me ka lōʻihi o ka paipu laina API 5L i kahi ʻōnaehana kākoʻo ikaika.
Ma waho aʻe o ko lākou mau pono ponoʻī, ʻo ka hoʻohālikelike ʻana o ka paipu arc submerged arc welded pipe a me ka paipu laina API 5L e hoʻonui i ka pono o nā papahana pipeline.ʻO ka maʻalahi o ka paipu SSAW e hiki ai ke hoʻopili maʻalahi me ka paipu laina API 5L, e hōʻoia i ka holo ʻole o ka wai i loko o ka pūnaewele paipu.
I ka hopena:
He mea koʻikoʻi nā paipu hollow section i ke kūkulu ʻana i nā ʻoihana ikaika.ʻO ka hoʻohana ʻana i ka paipa SSAW a me ka paipu laina API 5L e hāʻawi i kahi hopena ikaika e hāʻawi ai i ka ikaika, ka lōʻihi a me ka hilinaʻi no nā ʻano papahana.Ke kākoʻo nei i ke kumu o nā hale kiʻekiʻe a i ʻole ka lawe ʻana i nā wai koʻikoʻi ma kahi lōʻihi, he hana koʻikoʻi kēia mau paipu i ka hōʻoia ʻana i ka lōʻihi a me ke kūpaʻa o kā mākou ʻoihana.Ma ka hoʻohana ʻana i ka ikaika o ka spiral submerged arc welded pipe a me ka hilinaʻi o ka paipu laina API 5L, hiki i nā ʻenekini ke kūkulu i kumu paʻa no ka lā ʻapōpō maikaʻi aʻe.