Corrosion yog ib qho ntawm cov yam tseem ceeb uas ua rau muajnpauj npaim valve kev puas tsuaj. Nyob rau hauvnpauj npaim valve kev tiv thaiv,npauj npaim valve Kev tiv thaiv xeb yog ib qho teeb meem tseem ceeb uas yuav tsum xav txog. Rau cov hlaunpauj npaim valves, kev kho kom zoo nkauj saum npoo av yog txoj kev tiv thaiv zoo tshaj plaws uas pheej yig.
Lub luag haujlwm ntawmhlaunpauj npaim valve txheej txheej
01. Kev Tiv Thaiv
Tom qab cov hlau nto raug pleev xim, cov hlau nto raug cais tawm ntawm ib puag ncig. Qhov kev tiv thaiv no tuaj yeem hu ua kev tiv thaiv. Tab sis nws yuav tsum tau taw qhia tias ib txheej nyias nyias ntawm cov xim tsis tuaj yeem ua lub luag haujlwm tiv thaiv tag nrho. Vim tias cov polymer siab muaj qee qhov permeability cua, thaum lub txheej nyias heev, nws cov qauv pores tso cai rau cov molecules ntawm dej thiab oxygen hla mus dawb. Mos-kawnpauj npaim valves muaj cov kev cai nruj heev rau qhov tuab ntawm cov txheej epoxy ntawm qhov chaw. Nws tuaj yeem pom tias rau ntau cov txheej txheej tus nqi ntau dua li qhov tsis muaj hlau nto. Txhawm rau txhim kho qhov tsis kam ntawm cov txheej txheej, cov txheej tiv thaiv xeb yuav tsum siv cov khoom tsim zaj duab xis nrog cov huab cua tsis tshua muaj permeability thiab cov khoom khov kho nrog cov khoom tiv thaiv loj, thiab tib lub sijhawm, tus lej ntawm cov txheej txheej yuav tsum tau nce kom cov txheej txheej tuaj yeem ncav cuag qee qhov tuab thiab ntom thiab tsis-porous.
02. Kev tiv thaiv xeb
Los ntawm kev cuam tshuam cov khoom sab hauv ntawm cov txheej nrog cov hlau, qhov chaw hlau raug passivated lossis cov tshuaj tiv thaiv tau tsim los txhim kho cov nyhuv tiv thaiv ntawm cov txheej.npauj npaim valvessiv rau cov kev xav tau tshwj xeeb yuav tsum tau them sai sai rau cov xim sib xyaw kom tsis txhob muaj cov teeb meem loj. Tsis tas li ntawd, cov hlau cam khwb cianpauj npaim valve siv rau hauv cov kav dej roj, cov khoom puas tsuaj tsim los ntawm kev ua ntawm qee cov roj thiab kev ua kom qhuav ntawm cov xab npum hlau kuj tseem tuaj yeem ua lub luag haujlwm ntawm cov tshuaj tiv thaiv kev xeb organic.
03. Kev tiv thaiv hluav taws xob
Kev xeb hluav taws xob hauv qab zaj duab xis tshwm sim thaum lub dielectric permeable txheej los kov cov hlau nto. Siv cov hlau uas muaj kev ua haujlwm siab dua li hlau ua cov khoom sau hauv cov txheej, xws li zinc. Nws yuav ua lub luag haujlwm tiv thaiv ntawm sacrificial anode, thiab cov khoom xeb ntawm zinc yog cov zinc chloride yooj yim thiab zinc carbonate, uas yuav sau qhov sib txawv ntawm daim nyias nyias thiab ua rau daim nyias nyias nruj, uas txo qhov xeb thiab ua rau lub neej ua haujlwm ntev dua.npauj npaim valve.
Cov txheej txheem siv rau hlaunpauj npaim valves
01.npauj npaim valve lub cev epoxy resin txheej
Muaj cov yam ntxwv hauv qab no:
Kev tiv thaiv xeb
Cov hlau uas muaj epoxy coated muaj kev tiv thaiv corrosion zoo, thiab lub zog sib txuas nrog cov pob zeb ua vaj tse raug txo qis heev. Nws yog qhov tsim nyog rau cov xwm txheej kev lag luam hauv cov chaw noo noo lossis cov khoom siv hnyav.
muaj zog nplaum
Qhov muaj cov polar hydroxyl thiab ether bonds uas muaj nyob rau hauv cov saw molecular ntawm epoxy resins ua rau nws nplaum rau ntau yam tshuaj. Epoxy resin muaj qhov shrinkage tsawg thaum lub sijhawm kho, thiab kev ntxhov siab sab hauv tsim yog me me, thiab cov txheej tiv thaiv nto tsis yooj yim poob thiab ua tsis tiav.
Cov khoom siv hluav taws xob
Lub kaw lus epoxy resin kho yog cov khoom siv rwb thaiv tsev zoo heev nrog cov khoom dielectric siab, tiv taus qhov xau ntawm qhov chaw thiab tiv taus arc.
Tiv taus pwm
Cov txheej txheem epoxy kho tau zoo tiv taus feem ntau cov pwm thiab tuaj yeem siv rau hauv cov xwm txheej kub hnyav.
02.npauj npaim valve phaj nylon phaj khoom
Cov ntawv nylon yog cov tshuaj tiv thaiv corrosion heev thiab tau siv tau zoo hauv ntau daim ntawv thov xws li dej, av nkos, khoom noj, thiab desalination.
kev sib deev sab nraum zoov
Cov txheej nylon board tuaj yeem dhau qhov kev sim tshuaj tsuag ntsev, thiab cov txheej tsis tau tev tawm tom qab raug muab tso rau hauv dej hiav txwv rau ntau tshaj 25 xyoo, yog li tsis muaj xeb rau cov khoom hlau.
kev tiv thaiv kev sib txhuam
Muaj kev tiv thaiv kev puas tsuaj zoo heev.
kev cuam tshuam tsis kam
Tsis muaj cim qhia tias tev tawv thaum muaj kev cuam tshuam loj heev.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-24-2022
