Electrochemical Corrosion Protection thiab Kev Kho Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob
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Electrochemical Corrosion Protection thiab Kev Kho Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob Hluav Taws Xob
Nkag siab txog qhov ua rau muaj ntau yam corrosion ntawm lub tshav kub exchanger, xaiv qhov tsim nyog los tiv thaiv corrosion, thiab ua tiav lub hom phiaj ntawm kev siv cov cuab yeej siv tau zoo. Lub hom phiaj ntawm qhov teeb meem corrosion, tau npaj txoj kev tiv thaiv corrosion, feem ntau yog qhia txog corrosion inhibitors thiab electrochemical tiv thaiv.
Ua ntej: Corrosion inhibitor
Hauv chromate txias dej system, raws li lub ntsiab tivthaiv ntawm corrosion inhibitor, chromium yog anode inhibitor (txheej txheem). Thaum nws ua ke nrog cov cathode inhibitor tsim nyog, cov txiaj ntsig zoo los tiv thaiv corrosion thiab cov txiaj ntsig kev lag luam tuaj yeem tau txais.
Zinc chromate phosphate: Polyphosphate yog vim nws cov hlau huv si thiab corrosion kuj. Polyphosphate tuaj yeem hloov mus rau hauv ib feem ntawm phosphate, thiab tuaj yeem tsim cov calcium colloids los tiv thaiv cov txheej txheem cathode.
Zinc chromate phosphate: Txoj kev no siv sodium phosphate es tsis yog polyphosphate, uas zoo ib yam li cov txheej txheem dhau los thiab kuj tseem siv tau thaum tus nqi pH siab dua polyphosphate. Aminophosphonic acid tuaj yeem tiv thaiv qhov ntsuas thiab tswj cov nag lossis daus ntawm calcium ntsev txawm nyob ntawm pH ntawm 9.
Thib ob: kev tiv thaiv electrochemical
Txais kev tiv thaiv cathodic thiab kev tiv thaiv anode. Kev tiv thaiv Cathodic yog siv lub zog DC ntxiv los ua kom cov hlau nto ib cathode kom ua tiav kev tiv thaiv. Txoj kev no muaj qhov zoo ntawm kev siv hluav taws xob siab thiab tus nqi siab. Anodic kev tiv thaiv yog siv los tiv thaiv lub tshav kub exchanger txuas nrog rau sab nraud fais fab mov anode thiab passivate hlau nto, yog li tiv thaiv nws.
thib ob: Rau cov tshuaj lom lossis gaseous media, fluoroplastic heat exchangers yuav tsum tsis txhob xau, thiab tshwj xeeb yuav tsum tau them rau lawv cov sealing. Lub sealing tsis yog tsuas yog txhim khu kev qha, tab sis kuj yooj yim thiab yooj yim. Seb puas siv fluoroplastic heat exchanger yog ib rooj plaub tshwj xeeb.
Thib peb: Kev ntsuas cov kav dej thiab cov plhaub yuav tsum tau muab ntxuav, descaled, tiv thaiv corrosion, tswj, thiab kho kom ntau li ntau tau kom ntseeg tau tias kev ua haujlwm.
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