ISO 21809-1pili i nā ʻōnaehana pipeline i kanu ʻia a i ʻole i loko o ka ʻoihana aila a me ke kinoea a kuhikuhi i nā koi no nā pale pale corrosion waho.3LPE a me 3LPPno ka meapaipu kila wiliwili ʻole ʻia.
ʻEkolu papa o nā mea hoʻoheheʻe i luna, ma muli o ke ʻano o ka mea i hoʻoheheʻe ʻia:
A: LDPE (polyethylene haʻahaʻa haʻahaʻa);
B: MDPE/HDPE (polyethylene medium-density)/(polyethylene kiʻekiʻe);
C: PP (Polypropylene).
Hōʻike ʻia nā koi kikoʻī no kēlā me kēia mea i ka kikoʻī ma ka ʻāpana e pili ana i nā koi no nā mea maka ʻekolu.
| Papa kalai | Mea papa luna | Mahana hoʻolālā (°C) |
| A | LDPE | -20 a i + 60 |
| B | MDPE/HDPE | -40 a i + 80 |
| C | PP | -20 a i + 110 |
ʻO ka ʻōnaehana hoʻopili ʻia he ʻekolu papa:
ʻO ka papa 1: epoxy (wai a pauka paha);
2nd papa: pipili;
Papa 3: PE/PP papa luna i hoʻohana ʻia e ka extrusion.
Inā makemake ʻia, hiki ke hoʻohana ʻia kahi ʻaʻahu koʻikoʻi e hoʻonui i ka pale ʻana i ka paheʻe.ʻOi aku ma kahi e pono ai ka hoʻomaikaʻi ʻana i ka paʻa a me ka hōʻemi ʻana i ka pilikia o ka paheʻe.
Epoxy Resin Layer mānoanoa
400 um
Ka liʻiliʻi: Liquid epoxу: liʻiliʻi 50um;FBE: ka palena iki125um.
Mānoanoa Layer Hoʻopili
150um liʻiliʻi ma ke kino paipu
Huina Manoanoa
Hoʻololi ʻia ka pae mānoanoa o ka papa anti-corrosion me ka ukana o ka pūnaewele a me ke kaumaha o ka paipu,a e koho ʻia ka mānoanoa o ka papa anti-corrosion e like me ke ʻano o ke kūkulu ʻana, ke ʻano o ka waiho ʻana o ka paipu, nā kūlana hoʻohana, a me ka nui o ka paipu.
Pm ke kaumaha o ka paipu kila no ka mika.
hiki ke nīnau ʻia ma ka nīnau ʻana i nā mea pilipapa kaumaha o ka paipu kila, a i ʻole ma ke ʻano:
Pm=(DT)×T×0.02466
ʻO D ka anawaena waho i ʻōlelo ʻia, i hōʻike ʻia ma mm;
ʻO T ka mānoanoa pā i kuhikuhi ʻia, i hōʻike ʻia ma mm;
Nā Koina no ka Mea Epoxy
Nā Koina no ka Mea Hoʻopili
Koi no ka PE/PP Layer Top
Hiki ke hoʻokaʻawale ʻia ke kaʻina hana anti-corrosion i:
1. Hoʻomākaukau i ka ʻili;
2. Ke noi uhi
3. Hooluolu
4. Hoʻokiʻoki
5. Hoailona
6. Hoʻopau i ka nānā ʻana i nā huahana
1. Hoʻomākaukau ʻili
Loaʻa nā koi like i nā kūlana SSPC a me NACE, a ʻo ia ka mea maʻamau maʻamau:
| ISO 8501-1 | NACE | SSPC-SP | Koho |
| ʻO 2.5 | 2 | 10 | Kokoke-keʻokeʻo metala pahū hoʻomaʻemaʻe |
| Sa 3 | 1 | 5 | Hoʻomaʻemaʻe metala keʻokeʻo |
Eʻoluʻolu,ʻaʻole i paʻa ka hopena o Sa 2.5 ma muli o ka corrosion grade o ka paipu kila, i hoʻokaʻawaleʻia e like me A, B, C, a me D, e pili ana i nā hopena 4.
2. Noi ka uhi
E hōʻoia i ka preheating wela a me ka laina laina o ka paipu kila i loko o ke kaʻina hana e hoʻokō ai i ka hoʻōla piha ʻana i ka pauka a me ka hoʻopaʻa ʻana i ka hoʻopili ʻana a me ka mālama ʻana i ka mānoanoa o ka uhi.
ʻO ka mānoanoa o ka pale pale corrosion e pili pū ana me nā palena o nā mea hoʻopili.
3. Hooluolu
E hoʻoluʻu ʻia ka uhi i hoʻopili ʻia i kahi mahana e pale ai i ka mālama ʻana i ka pōʻino i ka wā e hoʻopau ai a nānā hope.
ʻO ka maʻamau, ʻaʻole ʻoi aku ka mahana hoʻoluʻu o 3LPE ma mua o 60 ℃, a ʻoi aku ka kiʻekiʻe o ka mahana hoʻoluʻu o 3LPP.
4. Hoʻokiʻoki
Pono e wehe ʻia kahi lōʻihi o ka uhi ʻana mai nā ʻaoʻao ʻelua o ka paipu a ʻaʻole pono e hoʻoheheʻe ʻia ka papa pale corrosion ma kahi kihi ʻoi aku ma mua o 30 ° e pale ai i ka pōʻino i ka pale pale corrosion i ka wā wili.
5. Hoailona
Hoʻokō i nā kūlana a me nā koi o ka mea kūʻai aku.
Pono e hoʻopaʻa ʻia a pena ʻia kēia mau kaha i mea e maopopo ai ka maʻemaʻe o ka leka a ʻaʻole e mae.
6. Nānā Huahana Hoʻopau
ʻO ka nānā piha ʻana i nā paipu anti-corrosion i hoʻopau ʻia e hoʻokō i nā koi o ISO 21809-1.
3LPE Noi
Hāʻawi nā uhi 3LPE i ke kūpaʻa kemika kiʻekiʻe, ka palekana mechanical maikaʻi a me ka paʻa maikaʻi, a me nā kumukūʻai mālama haʻahaʻa.
He kūpono ia no nā pipeline kanu ʻia a i lalo paha o ka wai e koi ai i ke kūpaʻa corrosion kiʻekiʻe a me ka pale mechanical i ka lepo a me ka wai.
Hoʻohana maʻamau i nā ʻōnaehana paipu no ka lawe ʻana i ka aila, kinoea, a me ka wai.
3LPP noi
ʻOi aku ka maikaʻi o ka pale ʻana i ka wela a me ka paʻa kemika maikaʻi loa ma mua o ka polyethylene.Eia nō naʻe, hiki ke lilo i palupalu i nā wela haʻahaʻa.
He kūpono no nā wela kiʻekiʻe a me nā kaiapuni koi nui, e like me ka paipu ʻana i nā wahi wela a i ʻole kokoke i nā mea kanu hana kemika.
Hoʻohana maʻamau i nā ʻōnaehana paipu aila a me ke kinoea kahi e pono ai ka hana wela kiʻekiʻe.
DIN 30670: Nā uhi polyethylene o nā paipu kila a me nā mea pono.
He kūlana ʻoihana Kelemania kēia no nā uhi polyethylene no nā paipu kila a me kā lākou mea pono.
DIN 30678: Nā uhi polypropylene ma nā paipu kila.
ʻO ka polypropylene coating system no nā paipu kila.
GB/T 23257: Nā kūlana ʻenehana uhi polyethylene ma ka paipu kila i kanu ʻia.
He kūlana aupuni kēia ma Kina e uhi ana i ka ʻenehana uhi polyethylene no nā paipu kila i kanu ʻia.
CSA Z245.21: Hoʻopili i nā mea kanu i waho no ka paipu kila.
ʻO kēia kahi maʻamau ʻo Canadian Standards Association (CSA) e kuhikuhi ana i nā koi no nā uhi polyethylene waho i hoʻohana ʻia e pale i ka paipu kila.
Hoʻopili huahana piha: Hāʻawi mākou i kahi koho nui o nā paipu kila kalapona mai ke kumu a hiki i nā alloys holomua e hoʻokō i kāu mau pono like ʻole.
ʻO ka hōʻoia kiʻekiʻe: Hoʻopili nā huahana a pau i nā kūlana maikaʻi o ka honua, e like me ISO 21809-1, i hoʻolālā pono ʻia no nā koi anti-corrosion o ka ʻoihana aila a me ka ʻenehana.
ʻO ka lawelawe maʻamau: ʻAʻole wale mākou e hāʻawi i nā huahana maʻamau, akā ma muli o nā koi o ka papahana a me nā kūlana kaiapuni, hiki ke hoʻopili ʻia nā pale anti-corrosion a me nā paipu kila e hōʻoia i ka hana maikaʻi loa a me ke kumukūʻai.
Kākoʻo ʻenehana a me ka lawelawe mea kūʻai aku: Hāʻawi kā mākou hui o ka poʻe akamai i ka ʻōlelo aʻoaʻo ʻenehana a me ke kākoʻo e kōkua i nā mea kūʻai aku e koho i ka paipu kila kūpono loa a me nā hopena anti-corrosion e hōʻoia i ka hoʻokō kūleʻa o kā lākou mau papahana.
ʻO ka pane wikiwiki a me ka hāʻawiʻana: Me kahi waihona waiwai nui a me ka ʻōnaehana logistic maikaʻi, hiki iā mākou ke pane wikiwiki i nā pono o ka mea kūʻai aku a hōʻoia i ka hāʻawi ʻana i ka manawa.
Ke kakali nei mākou i ka hui pū ʻana me ʻoe e hāʻawi i ka paipu kila maikaʻi maikaʻi loa a me nā hoʻonā anti-corrosion coating no kāu mau papahana.Eʻoluʻolu eʻoluʻolu e leka uila iā mākou no nā kiko'ī huahana hou aku, hauʻoli mākou e kōkua iāʻoe eʻike i ka koho paipu kila maikaʻi loa no kāu mau pono!
