中文
Covroj thiab rojkev lag luam yog ib feem tseem ceeb ntawm lub ntiaj teb no cov khoom siv hluav taws xob, tab sis nws kuj yog ib qho ntawm cov kev lag luam uas muaj kev cuam tshuam loj tshaj plaws rau ib puag ncig. Txhawm rau txo qhov cuam tshuam rau ib puag ncig thiab ua kom muaj kev siv cov peev txheej ruaj khov, kev lag luam tau siv ntau yam kev ntsuas, ib qho ntawm cov kev siv cathodic tiv thaiv technology. Cathodic tiv thaiv technology yog dav siv nyob rau hauv cov roj thiab roj pipelines, cia tso tsheb hlau luam, offshore platforms thiab lwm yam chaw los mus cuag lawv cov kev pab cuam lub neej thiab txo cov kev pheej hmoo ntawm kev xau los ntawm corrosion.
Cathodic tiv thaiv (CP) yog ib qho electro-Cov txheej txheem tiv thaiv tshuaj siv los tiv thaiv corrosion ntawm cov qauv hlau hauv ib puag ncig electrolyte. Lub tshuab no qeeb lossis nres cov txheej txheem corrosion hauv cov chaw los ntawm kev siv hluav taws xob tam sim no rau cov hlau. Muaj ob hom kev tiv thaiv cathodic: kev tiv thaiv kev txi anode thiab kev tiv thaiv cathodic tam sim no
Cathodic tiv thaiv cov kav dej
Pipeline tsis siv CP
CP siv rau cov kav dej
1. Sacrificial anode tiv thaiv:
Hauv txoj kev no, cov hlau uas muaj zog ntau dua li cov hlau tiv thaiv (xws li magnesium, zinc lossis txhuas, thiab lwm yam) yog siv los ua cov anode. Thaum lub anode txuas nrog cov hlau raug tiv thaiv thiab raug rau cov electrolyte (xws li av los yog dej), lub anode yuav corrode nyiam, yog li tiv thaiv thawj hlau qauv.
Qhov zoo:
● Kev nqis peev tsawg tsawg thiab cov nqi khiav lag luam
● Cov tshuaj tiv thaiv spontaneous, txo cov kev tu thiab cov nqi
● Tsis muaj kev puas tsuaj los ntawm cov khoom, me ntsis cuam tshuam rau ib puag ncig
● Ncaj nraim ntawm cov hlau tiv thaiv, yooj yim rau nruab
Qhov tsis zoo:
● Yuav tsum tau kuaj xyuas thiab hloov pauv tsis tu ncua, ua kom cov nqi tu mus ntev
● Tej zaum yuav tsis npog tag nrho cov qauv loj lossis cov qauv
● Cov khoom siv corrosion tuaj yeem cuam tshuam rau cov khoom siv hlau
● Tej zaum yuav tsis ua haujlwm zoo nyob rau hauv cov dej muaj zog
2. Txaus siab rau kev tiv thaiv cathodic tam sim no:
Txaus siab rau kev tiv thaiv cathodic tam sim no yog ib qho cuab yeej siv los tiv thaiv hlau corrosion, tshwj xeeb tshaj yog nyob rau hauv kev lag luam marine engineering, petrochemical.s, kev kho dej, thiab lwm yam. Txoj kev no yog siv cov khoom siv hluav taws xob sab nraud los muab cov hluav taws xob tam sim no los ntawm kev sib txuas cov qauv hlau rau qhov tsis zoo.ncejntawm lub zog, kev sib txuasib qho auxiliary anode rau qhov zooncej, thiabcov dej ntws tam sim nolos ntawm anodemus rau cov qauv kev tiv thaiv.
Qhov zoo:
● Siab adjustabkev muaj peev xwm, tuaj yeem hloov mus rau qhov chaw sib txawv thiab cov khoom siv
● Tus nqi tu qis thiab lub neej ua haujlwm ntev
● Dav adaptability, haum rau ntau yam dej zoo thiab ib puag ncig
● Kev saib xyuas thaj chaw deb, yooj yim los tswj thiab kho
Qhov tsis zoo:
● Loj pib peev, yuav tsum tauhauvcov cuab yeej siv thiab thev naus laus zis
● Tej zaum yuav cuam tshuam nrog cov qauv hlau nyob ze
● Yuav tsum tau tshuaj xyuas kev saib xyuas tsis tu ncua
● Kev ua haujlwm tsis raug yuav ua rau muaj kev cuam tshuam rau ib puag ncig
Hauv kev lag luam roj thiab roj, kev tsim, kev teeb tsa thiab kev saib xyuas cov kab ke tiv thaiv cathodic yog qhov tseem ceeb heev. Kev tiv thaiv cathodic zoo tuaj yeem txuas ntxiv kev pab cuam lub neej ntawm cov cuab yeej siv, txo cov nqi tu, thiab xyuas kom muaj kev nyab xeeb thiab kev tiv thaiv ib puag ncig.
Hnub tim: 26 Lub Xya Hli 2024