He aha ka ptfe laina laina |BESTEFLON

I nā makahiki i hala iho nei, ʻo polytetrafluoroethylene (Teflon) kahi ʻano anti fouling a me nā huahana anti fouling no ka mana uila a me ka ʻoihana petrochemical.Eia naʻe, pono e noʻonoʻo nui ʻia nā pilikia ma lalo nei i ka wā o kaPTFE lainahosewelded laina, i ole ia ke ola lawelawe a me ka palekana o ka PTFE laina pipeline e pili.

1. I ka hoʻomaʻemaʻe ʻana i ka ʻaha hui, ʻaʻole loa e hōʻino i ka metala kumu.ʻAʻole ʻae ʻia ke kuʻi ʻana i ke arc ma ka metala kumu i ka wā wili.

2. Ma ka ʻāpana o ka fillet weld, ʻoi aku ka nui o ke kiʻekiʻe o ka weld fillet ma mua o 5mm, ʻoi aku ka nui o ka ʻaoʻao projection ma mua o 3mm, a ʻoi aku ka nui o ka huina o loko ma mua o 10mm.

3. I ka wā e kuʻi ai i ka pūpū o ka paipu laina PTFE, ʻoi aku ka maikaʻi o ka hoʻohana ʻana i ke ʻano kuʻi ʻana o ka ʻaoʻao lua ʻaoʻao.Pono kēia i ka pae ʻenehana o kā mākou poʻe limahana, ʻo ka weld e pālahalaha (smooth or smooth transition), ʻaʻohe pores, welding seam a me slag inclusion phenomenon, a ʻaʻole pono ke kiʻekiʻe o ka weld ma mua o 2mm.Ma hope o ke kuʻi ʻana, e hoʻopau loa ʻia ka spatter i hana ʻia e ka wili.

4. Pono e hoʻopaʻa ʻia ka hoʻomau ʻana i ka hoʻoheheʻe ʻana o ka paipu laina PTFE, a ʻaʻole e loaʻa nā māwae a i ʻole ka undercut mau.Huli pili:paipu PTFE wili, ʻO ka paipu huipu PTFE

ʻO Polytetrafluoroethylene (PTFE) kekahi o nā inoa maʻamau o polytetrafluoroethylene.Hoʻohana ʻia ka hose PTFE i loko o ka hose kila kila, no laila ʻoi aku ka lōʻihi o ke ola lawelawe o ka hose ma mua o ka hose a i ʻole ka hose i ʻōwili ʻia i ke kila kila.He nui nā mea maikaʻi ma mua o nā huahana rubber.

Papa I: PTFE laina pololei paipu a paipu pono

ʻIke mau ʻia ʻo ia ka paipu liner loose.Ma kēia kaʻina hana, hoʻohana ʻia ka PTFE e hoʻohuli i ka pā.He kūpono ia no ka paipu maʻamau a me ke kaomi maikaʻi no ka lawe ʻana i ka pipeline (e like me ʻekolu pipeline hoʻomaʻamaʻa ʻino, a me nā mea ʻē aʻe), a ʻaʻole pono e hoʻohana ʻia no ka pipeline me ka ukana (e like me ka inlet a me ka puka o ka paila a me ka pipeline e hiki ai ke hoʻopuka i ke kaomi ʻino. ma ka kulu a i ʻole ka hoʻolili koke ʻana).

Hōʻike anawaena: dn25-500mm

Ka wela lawelawe: - 40-180oc

Ke kaomi lawelawe: 1.6Mpa

Papa II: PTFE paipu pololei laina paipu a me na pono paipu

ʻIke mau ʻia ʻo ia ʻo ka paipu lining paʻa i ʻōwili ʻia me ka uwea kila.

Kaʻina hana: ʻo ka mea mua, ua ʻeha ʻia nā ʻāpana he nui o ke kiʻi ʻoniʻoni PTFE ma ka ʻōpala, a laila ua ʻeha ʻia ka uea kila (Ø 0.5-1mm) i ka kiʻi ʻoniʻoni PTFE, a laila ua ʻeha kekahi mau ʻāpana o ke kiʻi ʻoniʻoni PTFE ma waho o ke kila. uwea, a hoʻopili hope ʻia i loko o ka umu no ka hana ʻana.ʻO ka paia o loko o ka paipu laina PTFE i hana ʻia e kēia kaʻina hana maʻemaʻe, a ʻo ka pā o waho he spiral corrugated ma muli o ka nui a me ka ikaika elastic o ka uea kila.

ʻO ka hakahaka ma waena o ka paia o waho o ka paipu laina PTFE a me ka paia o loko o ka paipu kila ua hoʻopiha ʻia me ka resin (me ka ʻole o ke koena ea).Hiki ke hoʻopaʻa paʻa ʻia ka resin hoʻopiha i ka paipu kila.I ka manawa like, hiki ke hoʻopili paʻa ʻia ma ka paia o waho o ka spiral PTFE liner.Ma hope o ka ho'ōla ʻana i ka resin i hoʻopiha ʻia, hoʻokumu ʻia ka ripple spiral i hoʻopaʻa ʻia me ka ripple o waho o ka pā.Ua like kēia ʻano me ka hui pū ʻana o ka nut a me ka bolt.Ma kekahi ʻaoʻao, hiki iā ia ke kaupalena a hoʻopaʻi i ka hoʻonui ʻana i ka wela a me ka hoʻohaʻahaʻa ʻana o ka PTFE lining;ma ka lima 'ē aʻe, i ka uea kila stiffness hiki loa hoʻomaikaʻi i ka maikaʻiʻole puʻe kū'ē o ka PTFE lining.

Hōʻike anawaena: dn25-200 mm

Hana wela: - 50-180oc

Ke kaomi hana: 0.5-1.6mpa

ʻO ke kolu o ke ʻano: PTFE pana (piu) paipu i hoʻopaʻa ʻia me ka paipu pololei

ʻIke maʻamau ʻo ia ʻo push (squeeze) lined straight pipe, hoʻohana nui ʻia ia ma nā ʻāina i kūkulu ʻia i ka makahiki 1990.

Kaʻina hana: ʻo ka mea mua, hoʻohana ʻia ka pauka PTFE i lawe ʻia e pana (extrude) i ka paipu, a laila hoʻokau ʻia i loko o ka paipu kila ʻole (ʻoi aku ka nui o waho o ka liner ma mua o ke anawaena o loko o ka paipu kila e 1.5- 2mm) e hana i kahi lining paʻa ʻole.I mea e hoʻopau ai i ke kaomi, hoʻokomoʻia i loko o ka umu ahi a hoʻomehanaʻia i 180oC no ka mālamaʻana i ka mahana mau, i hiki ke hoʻohanaʻia i ka mahana ma lalo o 180oC.I ka manawa like, hoʻokuke (pii) i ke kumu o ka paipu

ʻOi aku ka maikaʻi o ka tensile ma mua o ka paipu ʻeha.He kū'ē kūpono ka pipeline i ke kaomi maikaʻi a maikaʻi ʻole.

ʻO ka ʻokoʻa ma waena o ka lining PTFE a me ka lining lining

Hoʻohana ʻia ka lining tetrafluoroethylene i ka pale ʻana o ka fluorine, ke kūpaʻa wela kiʻekiʻe, ke kūpaʻa ikaika a me ke kūpaʻa alkali, ka hoʻopili maikaʻi ʻana, ke ola lawelawe lōʻihi a me ke kūpaʻa komo ikaika.He hana ʻenehana kiʻekiʻe ka hoʻoulu ʻana i ka tetrafluoroethylene, he aha kāna kaʻina hana?1. Ma mua o ka pīpī ʻana, pono e hoʻomaʻemaʻe ʻia ka ʻili a me ka ʻōpala, a hoʻopuʻi ʻia kahi papa o ka primer kūikawā.2. A laila ua hoʻopiʻi ʻia ka pauka fluoroplastic e nā mea uila electrostatic kiʻekiʻe, a hoʻopili pono ʻia ma ka ʻili o ka mea hana ma lalo o ka hana o ke kahua uila.3. Ma hope o ka hoʻomoʻa ʻana i ka wela kiʻekiʻe, e hoʻoheheʻe ʻia nā ʻāpana clinker i kahi ʻāpana pale paʻa, i hoʻopili paʻa ʻia i ka ʻili o ka mea hana.No ka laʻana, pono e kāpīpī ʻia kahi kiʻi ʻoniʻoni 1 mm mānoanoa a kālua pinepine ʻia no 5-6 mau manawa.ʻO ka maʻamau, hiki ke hoʻoulu ʻia ka mānoanoa kiʻekiʻe i 2mm.ʻO ka lining PTFE kahi ʻenehana i hoʻohana nui ʻia i kēia manawa.Hana ia i ka hoʻohana piha i ka fluorine ka corrosion kū'ē, kiʻekiʻe maʻemaʻe, cleanliness, non stickiness, non wetting, self lubrication, aahu ke kū'ē, kiʻekiʻe a me ka haʻahaʻa wela kū'ē, insulation, etc. kūlana kūpono e hoʻokō i ka hopena o ka uhi.Kapa ʻia ʻo ka lining Rubber lining.ʻO ia ka hoʻopaʻa ʻana i ka pā hao i hana ʻia ma luna o ka ʻili metala me ka mea hoʻopili e hoʻokaʻawale i ke ʻano corrosive mai ka matrix metala no ke kumu o ka pale.Hoʻohana ʻia ka lāʻau kūlohelohe a me ka synthetic rubber no ka lining.ʻO ka hapa nui o ka lāʻau lapaʻau i hoʻohana ʻia i nā mea hana kemika he lāʻau kūlohelohe.ʻO ka mea nui o ka lāʻau kūlohelohe ʻo cis polymer o isoprene, kahi i vulcanized me ka hoʻohui ʻana i ka sulfur.Loaʻa i ka ʻōpala vulcanized kekahi ʻano wela a me ka ikaika mechanical.Hiki ke hoʻokaʻawale ʻia i ka ʻōpala palupalu, ka lāʻau semi-paʻakikī a me ka ʻōpala paʻakikī ʻekolu ʻano.ʻO ka paʻa paʻa paʻa ka pale ʻana i ka corrosion maikaʻi, ke kūpaʻa ʻelemakule a me ka ikaika paʻa paʻa me ka metala.Loaʻa i ka lāʻau palupalu ke kū anuanu maikaʻi, ke kū ʻana o ka wela a me ke kūpaʻa hopena, a he elasticity kekahi;ʻO ka semi hard rubber ma waena o ʻelua.Ma waho aʻe o nā oxidants ikaika a me kekahi mau mea hoʻoheheʻe, hiki i ka lāʻau paʻa ke pale aku i ka ʻino o ka hapa nui o nā waikawa inorganic, nā waikawa organik, nā alkali, nā paʻakai a me nā waiʻona.No laila, hoʻohana ʻia ka lining paʻa paʻa e like me ka mea nui non-metallic anti-corrosion material.Hiki ke hoʻokaʻawale ʻia ka lāʻau lapaʻau i mua o ka vulcanized rubber, ke kaomi maʻamau ka wai wela vulcanized rubber a me ka vulcanized rubber maoli.Hoʻohana ʻia ka pulupulu pre vulcanized i nā lako pickling nui.