Ntsiab lus #25
Hauv cov ntaub ntawm ib lub nroog, cov kav dej hauv av tau ua lub luag haujlwm tseem ceeb, ua ntsiag to kom ntseeg tau cov dej txhua hnub rau nws cov neeg nyob. Txawm li cas los xij, qhov kev tiv thaiv corrosion ntawm cov kav dej ncaj qha cuam tshuam rau lawv lub neej, thiab yog li ntawd, kev ruaj ntseg ntawm cov kav dej.
Tsab ntawv xov xwm no yuav tshawb txog qhov tseem ceeb ntawm kev tiv thaiv kev tiv thaiv cov kav dej, qhia txog kev tiv thaiv corrosion ntawm zinc txheej, thiab hais txog tias cov zinc txau txaus rau kev tiv thaiv corrosion yog ib qho tseem ceeb thiab ib qho kev nqis peev zoo tshaj plaws hauv kev ua kom muaj kev pab cuam lub neej ntawm cov kav dej hlau thiab kev nyab xeeb ntawm cov khoom siv dej.
Txhawm rau ua hauv - kev tshawb fawb tob nrog cov lus nug hauv siab
Ntawm cov chaw tsim kho kav dej, cov ntaub ntawv sib piv cov kev tshawb fawb qhia tau hais tias qhov tseem ceeb ntawm kev tiv thaiv corrosion rau cov kav hlau kav hlau.
Cov ntaub ntawv qhia peb tsuas yog qhov tseem ceeb ntawm kev tiv thaiv corrosion rau cov kav hlau kav hlau.
Yog li dab tsi raws nraim yog txoj cai tiv thaiv corrosion ntawm zinc txheej?
Strength Comparison Exhibition
Qhov no yog qhov chaw tsim kho ntawm Longjin Avenue (Meihe Road - Nanxi Road) renovation project nyob rau hauv Shucheng County, Lu'an City, Anhui Province. Cov neeg ua haujlwm tsim kho tab tom kho thiab hloov cov kav dej uas twb muaj lawm.
Nws yog ib qho tsim nyog hais tias cov neeg ua haujlwm ntawm Shucheng Water Supply Company unearthed ib Jintai Hongye DN600 ductile hlau yeeb nkab uas tau muab tso rau hauv 2012. Lawv zoo siab pom tias, txawm tias ntau tshaj kaum xyoo dhau los, cov yeeb nkab sab nrauv tseem tsis zoo thiab muaj kev tiv thaiv zoo heev, qhia tias cov yeeb nkab corrosion kuj tseem muaj zog.
Kev ua haujlwm siab thiab kev ntseeg siab ntawm Jintai Hongye cov kav hlau kav ntev ntev - lub sijhawm ua haujlwm hauv av kom ntseeg tau tias cov pej xeem tau txais kev pabcuam dej tsis tu ncua thiab ruaj khov, uas rov ua pov thawj qhov zoo tshaj plaws thiab kev ua tau zoo ntawm Jintai cov khoom.
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Nyob rau hauv sib piv, qee lwm hom ntawm cov kav hlau kav, tom qab raug faus rau hauv av tsawg tshaj li kaum xyoo, qee qhov tsuas yog tsib xyoos, tau pom tias muaj xeb hnyav heev thiab lawv cov khoom tiv thaiv sab nraud -corrosion coatings tau ua tsis tiav thaum khawb. Qhov no yog qhov sib txawv ntawm qhov sib txawv ntawm Jintai ductile hlau kav, uas tau tswj xyuas kev ua haujlwm zoo rau ntau tshaj kaum xyoo ntawm kev ua haujlwm hauv av.
▶ Lub xeev ntawm cov yeeb nkab hlau cam khwb cia (ntawm lwm hom) faus hauv ntiaj teb xyoo 2014 thaum nws tau khawb hauv 2023.
▶ Lub xeev ntawm cov yeeb nkab hlau (ntawm lwm hom) faus rau xyoo 2013 thaum nws tau khawb hauv 2018.
Xws li cov kav dej ua rau lub siab tawg. Txawm li cas los xij, qhov no tsis yog ib qho xwm txheej cais. Qhov tseeb, ntau lub nroog cov kav dej hauv av tau ntsib cov teeb meem zoo sib xws, feem ntau vim yog cov kav dej tsis txaus corrosion.
Qhov tseem ceeb ntawm Pipeline Corrosion Protection
Corrosion tsis kam yog ib qho tseem ceeb cuam tshuam rau kev pab cuam lub neej ntawm cov kav dej. Tsis ntev los no, phau ntawv xov xwm "Kev Siv Dej thiab Dej Dej" tau luam tawm ib tsab xov xwm tshawb fawb txog "Ntau-Txoj Kev Ntsuam Xyuas thiab Kev Kho Kom Zoo rau Kev Siv Dej Pipeline Collapse nyob rau hauv Lub Nroog Inland nyob rau sab qaum teb Tuam Tshoj", uas tau tshuaj xyuas kom meej txog qhov ua rau ntawm 1,044 qhov xwm txheej ntawm cov kav dej hauv av los ntawm 2027 txog 2017.
Raws li cov ntaub ntawv soj ntsuam thiab kev soj ntsuam, tag nrho 969 kev sib tsoo muaj feem cuam tshuam nrog cov txheej txheem sib txawv ua ntej cov yeeb nkab tawg. Cov yam ntxwv ntawm qhov tsis xws luag yog corrosion, misalignment, rupture, disconnection, thiab deformation. Ntawm cov no, 744 tau ua ke cov kav dej phwj tuaj ua ke thiab 225 yog cov kav dej cua daj cua dub.
Rau cov kav dej sib xyaw ua ke, kev txhim kho corrosion yog qhov feem ntau ntawm cov qauv tsis xws luag ua ntej lub cev qhuav dej, suav txog 595 tus neeg mob thiab 80% ntawm tag nrho cov teeb meem. Qhov no ntxiv qhia txog qhov tseem ceeb ntawm kev tiv thaiv kev tiv thaiv kab mob corrosion.
Txoj cai tiv thaiv -corrosion ntawm zinc txheej
Ib qho ntawm cov txheej txheem tseem ceeb los xyuas kom meej qhov kev tiv thaiv corrosion ntawm cov kav dej hlau yog zinc txau rau kev tiv thaiv corrosion.
👍 Jintai Hongye tau coj txoj kev txhim kho ntawm kev tiv thaiv kev tiv thaiv sab nraud rau cov kav hlau kav hlau. Raws li thaum ntxov xyoo 1950, Jintai pioneered siv zinc txheej raws li kev tiv thaiv kev tiv thaiv sab nraud rau cov kav dej, thiab tau qhia nws rau Tuam Tshoj thaum xyoo 1990s, ua kom lub neej kev pab cuam ntawm cov kav dej. Zinc txau rau kev tiv thaiv kev tiv thaiv sab nraud tau dhau los ua tus qauv rau kev tiv thaiv kev tiv thaiv sab nraud ntawm cov kav hlau kav hlau.
Zinc txau rau kev tiv thaiv corrosion tuaj yeem tsim cov zinc tiv thaiv txheej sab nraud ntawm cov kav hlau hlau. Zinc muaj qhov hluav taws xob qis dua li hlau, yog li thaum corrosion tshwm sim, zinc txheej yuav corroded ua ntej hlau, yog li muab kev tiv thaiv rau cov hlau ductile.
Tsis tas li ntawd, cov txheej tiv thaiv zinc muaj qee yam ntawm tus kheej - kho muaj peev xwm. Thaum ib cheeb tsam hauv cheeb tsam puas lawm, zinc ions yuav sai sai mus rau qhov chaw puas, tsim ib txheej tshiab tiv thaiv thiab tiv thaiv corrosion los ntawm kev sib kis.
Txawm hais tias zinc tso nyiaj rau tsuas yog 1-2% ntawm tag nrho cov nqi ntawm cov yeeb nkab, nws tso cai rau cov kav hlau uas muaj zog corrosion kuj thiab lub neej ua haujlwm ntev, ua rau lawv muaj kev ua haujlwm zoo txawm tias nyob rau hauv ib puag ncig hnyav, yog li ua kom muaj kev ruaj ntseg ntawm cov khoom siv dej.
Yog tias tsis muaj zinc txau rau kev tiv thaiv corrosion, lub neej kev pab cuam ntawm cov kav dej yuav tsum tsawg kawg yog ib nrab, ua rau muaj kev ruaj ntseg ntawm cov kav dej thiab ua rau poob.
Yog li ntawd, kev ua kom tiav cov zinc txau txaus rau kev tiv thaiv corrosion yog ib qho tseem ceeb thiab ib qho kev nqis peev zoo tshaj plaws hauv kev ua kom muaj kev pab cuam lub neej ntawm cov kav dej hlau thiab kev nyab xeeb ntawm cov kav dej.
Thov hu rau peb
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