Ke kumu o na mea hoolele
ʻO ka uhi ʻana i ka ʻili o waho o nā paipu kila he mea koʻikoʻi ia e pale ai i ka pala.Hiki ke hoʻopilikia nui ʻia ka hana ʻana, ka maikaʻi, a me nā hiʻohiʻona hiʻohiʻona ka Rusting ma luna o ka ʻili o nā paipu kila.No laila, nui ka hopena o ke kaʻina hana uhi i ka maikaʻi holoʻokoʻa o nā huahana paipu kila.
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ʻO nā mea e pono ai no ka uhi ʻana
E like me nā kūlana i hoʻonohonoho ʻia e ka American Petroleum Institute, pono nā paipu kila e pale i ka corrosion no ʻekolu mahina.Eia nō naʻe, ua hoʻonui ʻia ke koi no nā wā anti-rust lōʻihi, me nā mea hoʻohana he nui e koi ana i ke kūʻē ʻana no 3 a 6 mau mahina i nā kūlana mālama waho.Ma waho aʻe o ka pono o ka lōʻihi, manaʻo nā mea hoʻohana e mālama i nā pale i kahi ʻili malū, ʻoiai ka hāʻawi ʻana i nā mea anti-corrosive me ka ʻole o nā skips a i ʻole nā drips e pili ana i ka maikaʻi ʻike.
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Nā ʻano o nā mea pani a me kā lākou mau pono a me nā pōʻino
Ma nā ʻoihana paipu lalo o ke kūlanakauhale,paipu kilahoʻohana nui ʻia no ka lawe ʻana i ke kinoea, ka aila, ka wai, a me nā mea hou aku.Ua ulu ka uhi no kēia mau paipu mai nā mea asphalt kuʻuna i ka resin polyethylene a me nā mea epoxy resin.Ua hoʻomaka ka hoʻohana ʻana i nā uhi uhi polyethylene resin i ka 1980s, a me nā noi like ʻole, ua ʻike nā ʻāpana a me nā kaʻina hana i ka hoʻomaikaʻi ʻana.
3.1 ʻAla ʻAla ʻAla
ʻO ka petrole asphalt coating, kahi papa anti-corrosive kuʻuna, aia i nā ʻāpana asphalt petroleum, i hoʻoikaika ʻia me ka lole fiberglass a me kahi kiʻiʻoniʻoni polyvinyl chloride pale waho.Hāʻawi ia i ka wai wai maikaʻi, ka hoʻopili maikaʻi ʻana i nā ʻāpana like ʻole, a me ka uku-pono.Eia nō naʻe, loaʻa iā ia nā drawbacks e pili ana i ka hiki ke hoʻololi i ka wela, e lilo i palupalu i nā haʻahaʻa haʻahaʻa, a hiki i ka ʻelemakule a me ka pohā, ʻoi aku ka maikaʻi ma nā kūlana lepo pōhaku, pono nā hana pale hou a me nā kumukūʻai hoʻonui.
3.2 Ka Coal Tar Epoxy Coating
ʻO ka epoxy coal tar, i hana ʻia mai ka epoxy resin a me ka coal tar asphalt, e hōʻike ana i ka wai maikaʻi loa a me ke kūpaʻa kemika, ka pale ʻana i ka corrosion, adhesion maikaʻi, ka ikaika mechanical, a me nā waiwai insulation.Eia nō naʻe, pono ia i ka manawa hoʻōla lōʻihi ma hope o ka noi ʻana, e maʻalahi ai i nā hopena ʻino mai ke ʻano o ka wā i kēia manawa.Eia kekahi, ʻo nā ʻano mea like ʻole i hoʻohana ʻia i kēia ʻōnaehana coating pono i kahi mālama kūikawā, e hoʻonui i nā kumukūʻai.
3.3 Epoxy pauda uhi
ʻO ka uhi ʻana i ka pauka Epoxy, i hoʻokomo ʻia i ka makahiki 1960, e hoʻopili ana i ka pauka electrostatically ma luna o nā ʻili paipu i hoʻomaʻamaʻa mua ʻia a hoʻomehana ʻia, e hana ana i kahi papa anti-corrosive paʻa.ʻO kāna mau mea maikaʻi e pili ana i kahi ākea ākea ākea (-60 ° C a 100 ° C), ka hoʻopili ikaika ʻana, ke kūpaʻa maikaʻi i ka disbondment cathodic, ka hopena, ka loli, a me ka weld pōʻino.Eia nō naʻe, ʻo kāna kiʻi ʻoniʻoni ʻoi aku ka maʻalahi i ka pōʻino a koi i nā ʻenehana hana maʻalahi a me nā mea hana, e hoʻokau ana i nā pilikia i ka noi kahua.ʻOiai ʻoi aku ka maikaʻi ma nā ʻano he nui, hāʻule pōkole ke hoʻohālikelike ʻia me ka polyethylene ma ke ʻano o ka pale wela a me ka pale corrosion holoʻokoʻa.
3.4 Polyethylene Anti-corrosive uhi
Hāʻawi ka Polyethylene i ka hopena maikaʻi loa a me ka paʻakikī kiʻekiʻe me kahi ākea ākea.Loaʻa iā ia ka hoʻohana nui ʻana i nā wahi anuanu e like me Rūsia a me Western Europe no nā pipelines ma muli o kona ʻoi aku ka maʻalahi a me ka hopena o ka hopena, ʻoi aku ka haʻahaʻa haʻahaʻa.Eia nō naʻe, mau ka pilikia i kāna noi ʻana ma nā paipu anawaena nui, kahi e hiki mai ai ka pohā o ke koʻikoʻi, a hiki i ke komo ʻana o ka wai ke alakaʻi i ka ʻino ma lalo o ka uhi, pono e noiʻi hou a hoʻomaikaʻi i nā ʻenehana a me ka noi.
3.5 Kaumaha Anti-corrosion uhi
Hāʻawi nā pale anti-corrosion koʻikoʻi i ka pale ʻana i ka corrosion i hoʻohālikelike ʻia me nā pale maʻamau.Hōʻike lākou i ka hopena lōʻihi ma nā kūlana koʻikoʻi, me ke ola ʻoi aku ma mua o 10 a 15 mau makahiki i loko o ke kemika, kai, a me ka solvent environment, a ma luna o 5 mau makahiki i loko o nā kūlana acidic, alkaline, a i ʻole saline.ʻO kēia mau uhi maʻamau ka mānoanoa kiʻiʻoniʻoni maloʻo mai 200μm a 2000μm, e hōʻoiaʻiʻo ana i ka pale a me ka lōʻihi.Hoʻohana nui ʻia lākou i nā hale kai, nā mea kemika, nā pahu mālama, a me nā pipeline.
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Nā pilikia maʻamau me nā mea uhi
ʻO nā pilikia maʻamau me ka uhi ʻana e pili ana i ka hoʻohana ʻole ʻia, ka hoʻoheheʻe ʻana o nā mea anti-corrosive, a me ka hoʻokumu ʻana o nā ʻōpū.
(1) Ka uhi ʻole ʻia: ʻO ka hāʻawi like ʻole ʻana o nā mea anti-corrosive ma ka ʻili o ka paipu e hopena i nā wahi me ka mānoanoa o ka uhi ʻana, e alakaʻi ana i ka pau ʻole, ʻoiai ʻo nā wahi lahilahi a i ʻole i uhi ʻia e hōʻemi i ka hiki ke anti-corrosion o ka paipu.
(2) Ka kulu ʻana o nā lāʻau anti-corrosive.
(3) Hoʻokumu ʻia nā ʻōhū: Hoʻokumu ʻia ka ea i loko o ka mea anti-corrosive agent i ka wā o ka noi ʻana i nā ʻōhū ma ka ʻili o ka paipu, e pili ana i ka helehelena a me ka maikaʻi o ka uhi ʻana.
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ʻIkepili o nā pilikia maikaʻi o ka uhi ʻana
ʻO kēlā me kēia pilikia e puka mai ana mai nā kumu likeʻole, ke kumu o nā kumu likeʻole;a ʻo kahi puʻupuʻu paipu kila i hōʻike ʻia e ka maikaʻi o ka pilikia he hui pū kekahi o kekahi.Hiki ke hoʻokaʻawale ʻia nā kumu o ka uhi ʻole ʻia i ʻelua mau ʻano, ʻo kekahi ke ʻano like ʻole i hana ʻia e ka pīpī ʻana ma hope o ke komo ʻana o ka paipu kila i ka pahu uhi;ʻO ka lua, ʻo ia ke ʻano like ʻole i hana ʻia e ka hoʻopu ʻole ʻana.
Ke kumu o ka mea mua mea maopopo maʻalahi e ike, i ka mea hoʻopili i ka wā o ka paipu kila i loko o ka pahu pahu ma 360 ° a puni i ka huina o 6 pu (casing laina i 12 pu) no ka spraying.Inā ʻokoʻa kēlā me kēia pū mai ka nui o ke kahe, a laila e alakaʻi ia i ka puʻunaue like ʻole o ka anticorrosive agent ma nā ʻāpana like ʻole o ka paipu kila.
ʻO ke kumu ʻelua, aia kekahi mau kumu ʻē aʻe o ke ʻano o ka uhi ʻole ʻana ma waho aʻe o ke kumu hoʻoheheʻe.Nui nā ʻano kumu, e like me ka paipu kila e komo mai ana i ka ʻōpala, ʻoʻoleʻa, no laila ua paʻakikī ka hoʻokaʻawale ʻana o ka uhi;kila paipu ili i ka wai kaomi ana i waiho ma hope o ka emulsion, keia manawa no ka uhi ana ma muli o ka pilina me ka emulsion, no laila, i ka preservative mea paakiki e hoopili aku i ka ili o ke kila paipu, no laila, aole ka uhi o ka. ʻO nā'āpana paipu kila o ka emulsion, ka hopena i ka uhiʻana o ka paipu kila holoʻokoʻaʻaʻole like.
(1) ʻO ke kumu o ka mea anticorrosive e kau ana i nā hāʻule.He poepoe ka pauku kea o ka paipu kila, i na manawa a pau e hoolele ia ai ka mea anticorrosive ma luna o ka ili o ka paipu kila, e kahe ana ka mea anticorrosive ma luna a me ka lihi i ka lalo ma muli o ke kumu o ka umekaumaha. e hana i ke ano o ka kulu kau ana.ʻO ka mea maikaʻi, aia nā lako umu i loko o ka laina hana uhi o ka hale hana paipu kila, hiki ke wela a hoʻopaʻa i ka mea anticorrosive i hoʻoheheʻe ʻia ma ka ʻili o ka paipu kila i ka manawa a hoʻemi i ka wai o ka mea anticorrosive.Eia naʻe, inā ʻaʻole kiʻekiʻe ka viscosity o ka mea anticorrosive;ʻaʻohe hoʻomehana manawa ma hope o ka pīpī ʻana;ʻaʻole kiʻekiʻe ka mahana wela;ʻAʻole maikaʻi ka nozzle i ke kūlana hana, a me nā mea ʻē aʻe e alakaʻi i nā kulu anticorrosive e kau ana.
(2) Nā kumu o ka hoʻohūhū anticorrosive.Ma muli o ka pae hana o ka ea humidity, ua nui ka hoʻopuehu ʻana o ka pena, ʻo ke kaʻina o ka hoʻopuehu ʻana i ka mahana e hoʻoulu ai i ka preservative bubbling phenomenon.ʻO ka ʻāina haʻahaʻa o ka ea, nā kūlana haʻahaʻa haʻahaʻa, nā preservatives i hoʻoheheʻe ʻia mai loko mai o ka hoʻopuehu ʻia i loko o nā kulu liʻiliʻi, e alakaʻi i kahi hāʻule o ka mahana.ʻO ka wai i ka lewa me ka haʻahaʻa kiʻekiʻe ma hope o ka hāʻule ʻana o ka mahana e hoʻoheheʻe ʻia e hana i nā kulu wai maikaʻi i hui pū ʻia me ka preservative, a ma hope e komo i loko o ka uhi ʻana, e hopena i ka hanana blistering coating.
Ka manawa hoʻouna: Dec-15-2023