Ke kūkulu ʻana i kahi paipu ikaika "pale pale"

Hoʻomaikaʻi i ka ʻenehana paipu kila anticorrosion e pale i ka palekana a me ke ola o ka halihali ʻoihana
I loko o ka petrochemical, lako wai kūloko, a me nā ʻāpana kalaiwa kūlohelohe, ʻo nā paipu kila, ma ke ʻano he kaʻa kaʻa kaʻa nui, e ʻike mau ʻia i nā pilikia he nui, e like me ka corrosion lepo, media erosion, a me ka atmospheric oxidation. Hōʻike ka ʻikepili i ka awelika o ka lawelawe ʻana o nā paipu kila i hoʻoponopono ʻole ʻia ma lalo o ʻelima mau makahiki, ʻoiai ʻo nā lāʻau lapaʻau anticorrosion maʻamau hiki ke hoʻonui ʻia i nā makahiki he 20. Me ka hoʻonui ʻana i ka ʻoihana a me ka hoʻonui ʻana i ka pono o ka mālama ʻana i ke kaiapuni, ua ulu ʻia ka ʻenehana anticorrosion paipu kila mai ka pale pale hoʻokahi i kahi kūlana hou o ka pale ola holoʻokoʻa e hoʻopuni ana i ka "hoʻomaikaʻi ʻana i nā mea waiwai, ka loiloi kaʻina hana, a me ka nānā naʻauao."

I kēia manawa, hāʻawi nā ʻenehana anticorrosion paipu kila nui i nā ʻōnaehana like ʻole i kūpono i nā hiʻohiʻona noi kikoʻī. Ma ka ʻāpana pipeline i kanu ʻia, ʻo 3PE (ʻekolu-layer polyethylene coating) anti-corrosion coatings ka hopena i makemake ʻia no ka lōʻihi o ka aila a me ka pipeline gas ma muli o ko lākou kūʻē maikaʻi ʻana i ke koʻikoʻi o ka lepo a me ka disbonding cathodic. ʻO kā lākou hana hoʻohui, ʻo ia ka lepo epoxy kumu, kahi adhesive waena, a me kahi papa polyethylene waho, hāʻawi i ka corrosion a me ka pale hopena. No nā paipu waikawa a me ka alkaline i loko o ka ʻoihana kemika, hāʻawi nā pale fluorocarbon a me ka lining plastic i nā pono. Hoʻohana ka mea mua i ka inertness kemika o nā fluororesins e kūʻē i ka media corrosive loa, aʻo ka mea hope e hoʻokaʻawale kino i ka media i lawe ʻia mai ka paipu kila ponoʻī ma ke kau ʻana i ka paia o loko me nā mea e like me polyethylene a me polytetrafluoroethylene. Eia kekahi, hoʻohana nui ʻia ka galvanizing wela i nā wahi ʻino ʻino e like me ka lako wai o ke kūlanakauhale a me nā ʻōnaehana wai a me nā kākoʻo kila ma muli o kāna kumu kūʻai haʻahaʻa a maʻalahi hoʻi. ʻO ka hana anodic kaumaha o ka papa zinc e hāʻawi i ka pale electrochemical lōʻihi no ka paipu kila.

ʻO ka hoʻomaikaʻi ʻana i ka ʻenehana a me nā kaʻina hana e hoʻoikaika i ka maikaʻi o ka paipu kila anti-corrosion. ʻO nā kaʻina hana pena lima kuʻuna, ma muli o nā pilikia e like me ka mānoanoa o ka uhi ʻole a me ka hoʻopili maikaʻi ʻole, ke hoʻololi mālie ʻia nei e nā laina hana automated. Hiki i nā ʻenehana hoʻoheheʻe electrostatic o kēia manawa ke hoʻokō i ka ʻae ʻana i ka mānoanoa o ka uhi i loko o ± 5%. Ma ke kahua o nā mea anti-corrosion, hoʻololi mālie nā ʻāpana epoxy epoxy pili i ka wai a me nā graphene-modified anti-corrosion coatings i nā mea hoʻoheheʻe, e hōʻemi ana i ka hoʻokuʻu ʻana o VOC i ka wā e hoʻomaikaʻi ai i ka pale ʻana i ke aniau a me ke kūpaʻa ʻana. I ka manawa like, hoʻomaka ka hoʻohui ʻia ʻana o nā ʻōnaehana nānā naʻauao i nā ʻōnaehana anti-corrosion. ʻO nā paipu kila ma kekahi mau papahana koʻikoʻi i kēia manawa ua hoʻolako ʻia me nā naʻau corrosion. E hōʻiliʻili kēia mau mea ʻike i ka wā maoli a me ka uhi ʻana i nā hōʻailona pōʻino mai ka paia o waho o ka pipeline, e hiki ai ke ʻōlelo mua i ka hiki ʻole o ka corrosion a me ka hoʻoponopono pololei.

No nā papahana anti-corrosion paipu kila, ʻo ka ʻikepili ʻoihana ʻo "30% mau mea, 70% hana." Ma mua o ka hana ʻana, pono e hoʻoneʻe ʻia ka ʻili o ka paipu kila e wehe i ka ʻōpala a hōʻoia i ka ʻili o ka ʻili o Sa2.5 a ʻoi aku paha. Hoʻopau kēia lapaʻau i nā haumia e like me ka aila, ka unahi, a me nā mea haumia ʻē aʻe, e hoʻokaʻawale i ke ala no ka hoʻopili ʻana i ka uhi. I ka wā o ke kūkulu ʻana, pono e mālama pono ʻia ka mānoanoa o ka uhi ʻana, ka mahana hoʻōla, a me ka manawa e pale aku ai i nā hemahema e like me nā pinholes a me nā leaks uhi. Ma hope o ka hoʻopau ʻana, pono e hōʻoia ʻia ka hopena anti-corrosion ma o nā ʻano e like me ka hoʻāʻo ʻana i ka spark a me ka hoʻāʻo adhesion. Ma ka hoʻokumu wale ʻana i kahi kaʻina hana paʻa paʻa e hoʻopuni ana i ka "koho waiwai - ka mālama ʻana i ka ʻili - ka hoʻokele kūkulu ʻana a me ka mālama ʻana - ma hope o ka mālama ʻana" hiki ke ʻike maoli ʻia ka waiwai lōʻihi o ka paipu kila anti-corrosion.

Me ka holomua ʻana o nā pahuhopu "ʻelua kalapona" a me ka hoʻonui ʻana i nā koi palekana ʻoihana, e hoʻomau ʻia ka ʻenehana anti-corrosion paipu kila i nā ala ʻōmaʻomaʻo, ʻoi aku ka maikaʻi, a me ka naʻauao. I ka wā e hiki mai ana, ʻo nā mea anti-corrosion hou e hoʻohui i nā waiwai haʻahaʻa-carbon me ka pale lōʻihi, a me nā ʻōnaehana nānā anti-corrosion e hoʻohui i ka ʻenehana māhoe kikohoʻe, e lilo i mea nui i ka noiʻi ʻoihana a me ka hoʻomohala ʻana. E hāʻawi kēia i kahi pale palekana ikaika no nā pipeline ʻoihana like ʻole a kōkua i ka hana kiʻekiʻe o ka ʻoihana.