M'mafakitale monga mafuta, gasi, mankhwala, ndi mphamvu, mapaipi amakhala ndi udindo waukulu wonyamula zinthu, monga mitsempha ya magazi. Komabe, mapaipiwa amatha kuchita dzimbiri chifukwa chokhala-kutentha kwanthawi yayitali, mankhwala owononga, kapena kutentha kwambiri. Izi sizingofupikitsa moyo wawo wautumiki komanso zimatha kuyambitsa zochitika zachitetezo monga kutayikira ndi kuphulika. Kutuluka kwa dzimbiri-paipi yachitsulo yosagwira kumathetsa vutoli. Kupyolera mu ndondomeko yapadera, chitetezo chotetezera chimapangidwa pazitsulo zazitsulo, zomwe zimakhala ngati chishango chotetezera, kukulitsa kwambiri moyo wa chitoliro ndikuonetsetsa kuti chitetezo chikugwira ntchito.
1. Essence of Corrosion-Resistant Steel Pipe: A Composite of Steel Pipe and Protective Layer
Pakatikati pake, dzimbiri-zosagwira chitoliro chachitsulo chikadali chitoliro chachitsulo chokhazikika (monga chosasokoneka, chowotcherera, kapena chowongoka-chomangika), koma chimasiyana ndi chakuti chitoliro chosachita dzimbiri{2}}chimayikidwa mkati ndi kunja kwa chitolirocho. Zigawo zodzitchinjirizazi zitha kugawidwa m'magulu atatu kutengera zinthu ndi njira zomwe zimagwiritsidwa ntchito: zokutira, zokutira, ndi chitetezo cha dzimbiri cha electrochemical. Kupaka ndi komwe kumagwiritsidwa ntchito kwambiri pamatekinoloje awa.
Zida zokutira wamba zimaphatikizapo zokutira za epoxy powder (FBE), zitatu-zosanjikiza za polyethylene (3PE), tepi yomatira ya polyethylene, ndi polyurethane. Kutenga 3PE mwachitsanzo, imakhala ndi gawo loyambira la ufa wa epoxy (wopereka kumamatira kwamphamvu kwa chitoliro chachitsulo ndi kukana kwa mankhwala), chigawo chapakati cha zomatira (kugwirizanitsa ndi epoxy wosanjikiza ndi wosanjikiza wakunja wa polyethylene), ndi wosanjikiza wakunja wa polyethylene (kukana kuwonongeka kwa makina ndi kuwala kwa UV). Zosanjikiza zitatuzi-zimagwira ntchito mogwirizana kuti zisawonongeke ndi dothi ndi madzi a m'nyanja, komanso zisawonongeke zikakwiriridwa kapena pamwamba.
2. "Protection Logic" ya Anti-Corrosion Steel Pipe: Three Elements for Corrosion Prevention
Zitsulo zachitsulo kwenikweni ndi electrochemical reaction. Pamene mapaipi achitsulo akumana ndi madzi, mpweya, ndi electrolytes (monga mchere m'nthaka), maselo a galvanic amapanga, kuchititsa maatomu achitsulo kutaya ma elekitironi ndi oxidize (kupanga dzimbiri). Kuwonongeka-mapaipi achitsulo osamva amatchinga njirayi kudzera m'njira izi:
Kudzilekanitsa mwakuthupi: Zopaka kapena zomangira (monga polyethylene kapena ceramic) zimalekanitsatu chitoliro chachitsulo pazida zowononga, kuteteza kukhudzana mwachindunji.
Chemical passivation: Zopaka zina (monga epoxy powder) zimakhudzidwa ndi chitoliro chachitsulo kuti chipange filimu yowundana, kuletsa kusamutsidwa kwa ma elekitironi.
Chitetezo cha Electrochemical: Ukadaulo wamakono wachitetezo cha cathodic (ICCP) (omwe nthawi zambiri umagwiritsidwa ntchito limodzi ndi zokutira) umagwiritsa ntchito reverse current ku chitoliro chachitsulo, ndikuchisandutsa cathode, potero kuti chisawonongeke ngati anode.
Kwa mapaipi okwiriridwa amafuta ndi gasi, mwachitsanzo, zokutira za 3PE zimakana kulowa kwa chinyezi ndi mchere kuchokera m'nthaka, pomwe chitetezo cha cathodic chimapereka chitetezo china, kuchedwetsa njira ya dzimbiri ngakhale zokutira zitawonongeka pang'ono.
3. The Capability Map of Corrosion-Resistant Steel Pipes: Adapting to Different Scenarios
Zofunikira pachitetezo cha dzimbiri zimasiyana kwambiri m'mafakitale osiyanasiyana, zomwe zimapangitsa kuti mitundu yosiyanasiyana ya dzimbiri-isakhale ndi zida zachitsulo zomwe zimapangidwira kuthana ndi zovuta zachilengedwe:
Kwa mapaipi okwiriridwa: 3PE kapena zokutira za malasha a epoxy ndizokonda. Zakale zimagonjetsedwa ndi kupsinjika kwa nthaka ndi kulowa kwa mizu ya zomera, zomwe zimapangitsa kuti zikhale zoyenera kwa gasi wachilengedwe ndi kayendedwe ka mafuta oyengeka; yotsirizirayi ndi yotsika-yotsika mtengo komanso sinyowa-, zomwe zimapangitsa kuti azigwiritsidwa ntchito kwambiri popereka madzi ndi ngalande.
Malo a m'nyanja: Mchere wothira mchere wambiri, kuwala kwa UV, ndi kumizidwa m'madzi a m'nyanja, epoxy powder + polyurethane sheath kapena titaniyamu nano{1}}paipi yachitsulo yokhala ndi zitsulo ndizoyenera kwambiri, ndipo moyo wake umatha zaka zoposa 20.
Kutentha-kwapamwamba kwambiri-kumalo opanikizana: Kwa ma netiweki amagetsi otenthedwa kapena mapaipi a chemical reaction, zokutira za ceramic kapena zokutira-zotentha kwambiri (zotha kupirira kutentha kupitirira madigirii 300 ) akulimbikitsidwa, kuti musachite dzimbiri komanso kusasintha kwa kutentha.
Makanema apadera: Mukatumiza zosakaniza za asidi ndi zamchere (monga sulfuric acid ndi lye), polytetrafluoroethylene (PTFE)-paipi yachitsulo yokhala ndi mizere imafunika. Kusakhazikika kwa mankhwala kumapangitsa kuti zisagwirizane ndi pafupifupi zakumwa zonse zowononga kwambiri.
4. Kufunika kwa Anti{1}}Mapaipi a Zitsulo a Anti{1}: A Double Guarantee of Economy and Safety
Ubwino wachuma wogwiritsa ntchito -mapaipi oletsa dzimbiri ndi ofunikira. Mipope wamba yachitsulo ingafunike kusinthidwa pakatha zaka 3-5 zilizonse m'malo ochita dzimbiri, pomwe{4}}zoletsa{7}}zoletsa dzimbiri zamtundu wapamwamba zimatha kutha zaka 20-50 (mwachitsanzo, mapaipi a 3PE anti-corrosion amapangidwa kwa zaka 50). Mwachitsanzo, kuphulika kwa mapaipi achilengedwe chifukwa cha dzimbiri ndi kutayikira kungayambitse kuwonongeka kwachuma kwa ma yuan mamiliyoni mazana. Komabe, ndalama zogulira mapaipi achitsulo oletsa dzimbiri zimangotengera 5% -15% ya mtengo wonse wapaipi, komabe zitha kuchepetsa ngozi yopitilira 90%.
Komanso, mapaipi oletsa -zitsulo zowononga dzimbiri amalimbikitsa kukula kobiriwira ndi{1}kuchepa kwa kaboni. Kuwonongeka kumachepetsa mphamvu ya mapaipi (mwachitsanzo, kukulitsa kumapangitsa kuti zisasunthike), pamene anti-mankhwala oletsa dzimbiri amapangitsa kuti paipi ikhale yosalala mkati, kuchepetsa kutayika kwa mphamvu. Kukulitsa moyo wautumiki kumachepetsa chilengedwe cha mapaipi otayidwa achitsulo.
Kutsiliza: "Invisible Guardian" Kuteteza Moyo Wamakampani
Kuchokera ku West-netiweki ya East Gas Pipeline kupita ku njira zotumizira madzi a m'mphepete mwa nyanja, kuchokera ku makina operekera madzi apansi panthaka m'tawuni kupita ku mapaipi amagetsi a malo ofufuza a polar, anti{1}}mapaipi achitsulo oletsa dzimbiri amateteza mwakachetechete chitetezo ndi luso la makampani amakono. Ndi kupita patsogolo kwa sayansi ya zinthu komanso luso lolimbana ndi-loletsa dzimbiri (monga kupanga ma nano{4}}zopaka ndi kuyang'anira mwanzeru-zosanjikiza zowononga dzimbiri), mapaipi amtsogolo oletsa{6}}zitsulo zowononga dzimbiri adzakhala anzeru kwambiri komanso olimba, kupitiliza kukhala maziko olimba achitetezo padziko lonse lapansi.
