Pipe API vs 3PE Pipe

Ma nā papahana ʻenekinia nui e like me ka aila, ke kinoea maoli, a me ka lako wai o ke kūlanakauhale, ʻo nā pipeline ke kumu o ka ʻōnaehana kaʻa, a ʻo kā lākou koho ʻana e hoʻoholo pololei i ka palekana, hoʻokele waiwai, a me ka lōʻihi o ka papahana. ʻO ka paipu API a me ka paipu 3PE, ʻelua mau huahana pipeline i hoʻohana nui ʻia, e hoʻomaka pinepine ʻia e nā hui ʻenekinia. Eia nō naʻe, ʻokoʻa lākou i nā kūlana hoʻolālā, nā hiʻohiʻona hana, a me nā hiʻohiʻona kūpono. He mea koʻikoʻi ka hoʻomaopopo ʻana i kā lākou mau hiʻohiʻona no ka hoʻomaikaʻi ʻana i ka maikaʻi o ka papahana.

Wehewehe a me nā hiʻohiʻona noiʻi kumu

ʻO ka paipu API, pōkole no "American Petroleum Institute Standard Steel Pipe," i hana ʻia e like me nā kūlana honua e like meAPI 5L paipu kila. Kūkulu ʻia ia mai ke kila ikaika kiʻekiʻe a hoʻokumu ʻia ma o nā kaʻina hana wili a i ʻole ka hoʻopaʻa ʻana. Aia kona ikaika nui i kona ikaika kiʻekiʻe a me ka ikaika tensile, e hoʻohana nui ʻia i nā noi kiʻekiʻe e like me ka lōʻihi o ka aila a me nā paipu kinoea a me nā shale gas wellhead manifolds. ʻO kona kūlana paʻa i nā wela wela mai -40 ° C a 120 ° C e lilo ia i mea nui o ka lawe ʻana i ka ikehu.

ʻO ka paipu 3PE ke kū nei no "ʻekolu-layer polyethylene anti-corrosion steel pipe." Hoʻohana ʻo ia i ka paipu kila maʻamau ma ke ʻano he kumu, i uhi ʻia me kahi ʻano anti-corrosion ʻekolu-layer i loko o ka epoxy powder coating (FBE), adhesive, a me ka polyethylene. ʻO kāna hoʻolālā koʻikoʻi e kālele ana i ka pale ʻana i ka corrosion, e hoʻolōʻihi loa i ke ola lawelawe o ka paipu ma o ka hoʻokaʻawale ʻana i nā microorganisms lepo a me nā electrolytes mai ke kumu paipu kila. I loko o nā wahi ʻino loa e like me ka hoʻolako ʻana i ka wai kaona, ka mālama ʻana i ka wai, a me ka lawe ʻana i ka wai kemika, hiki i ka paipu 3PE ke hoʻokō i ke ola lawelawe ʻoi aku ma mua o 50 mau makahiki, e hana ana i kahi hopena anti-corrosion i hōʻoia ʻia no ke kūkulu ʻana i ka pipeline ma lalo.

Hoʻohālikelike Hana Nui

Mai kahi hiʻohiʻona hana nui, ʻokoʻa nā paipu ʻelua i ko lākou kūlana. Ma ke ʻano o nā waiwai mechanical, ʻoi aku ka ikaika o ka paipu API ma luna o 355 MPa, me kekahi mau māka ikaika kiʻekiʻe (e like meAPI 5L X80) hiki i ka 555 MPa, hiki ke pale i nā kaomi hana ma mua o 10 MPa. 3PE paipu, ma ka 'ē aʻe, hilinaʻi nui ma luna o ke kumu kila paipu no ka ikaika, a me ka anti-corrosion papa pono'ī nele i ka puʻe- amo ka mana, e oi aku ka pono no ka medium- a me ka haʻahaʻa puʻe lawe (maʻamau ≤4 MPa).

Loaʻa i nā paipu 3PE ka pōmaikaʻi nui i ka pale ʻana i ka corrosion. Hoʻokumu ko lākou ʻekolu ʻāpana i kahi pale pālua o "ka hoʻokaʻawale kino + pale kemika." Hōʻike ʻia nā hoʻāʻo ʻana o ka paʻakai i ka nui o kā lākou corrosion rate he 1/50 wale nō ko ka paipu kila maʻamau. ʻOiaiNā paipu APIhiki ke pale ʻia mai ka corrosion ma o ka galvanizing a me ka pena ʻana, ʻoi aku ka haʻahaʻa o ko lākou maikaʻi i ka kanu ʻana a i ʻole ka wai i lalo o nā paipu 3PE, e koi ana i nā ʻōnaehana pale cathodic hou, e hoʻonui ai i nā kumukūʻai o ka papahana.

Nā Kūlana Koho a me nā ʻano ʻoihana

Pono ke koho pāhana e pili i ke kumu o ka "scenarios fit": Inā he ʻaila kiʻekiʻe a i ʻole gas ka mea lawe, a i ʻole ke ʻano o ka ʻoihana e ʻike i nā loli wela nui, ʻoi aku ka maikaʻi o nā paipu API, me nā māka kila e like me X65 a me X80 i hoʻohālikelike ʻia i ka helu kaomi. No ka wai i kanu ʻia a i ʻole ka lawe ʻana i ka wai ʻino, ʻoi aku ka maikaʻi o nā paipu 3PE, a pono e hoʻoponopono ʻia ka mānoanoa o ka papa anti-corrosion e like me ka pae corrosivity lepo.

ʻO ke ʻano o ka ʻoihana i kēia manawa e pili ana i ka "hui hana." Ke hoʻohui nei kekahi mau hui i ka mea kumu ikaika kiʻekiʻe o ka paipu API me ka ʻekolu-layer anti-corrosion structure o ka paipu 3PE e hoʻomohala i ka "kiʻekiʻe ikaika anti-corrosion composite paipu." Hoʻokō kēia mau paipu i nā koi o ka hoʻouna ʻana i ke kaomi kiʻekiʻe a me ka pale corrosion lōʻihi. Ua hoʻohana nui ʻia kēia mau paipu i ka ʻaila hohonu a me ka hana kinoea a me nā papahana hoʻololi wai ma waena o ka pā. Hāʻawi kēia ʻano hana hou i kahi hopena maikaʻi loa no ka ʻenehana pipeline.