Cathodic tiv thaiv ntawm pipeline xeb: cov khoom, lub operating hauv paus ntsiab lus

Txhais tau tias kev tiv thaiv tawm tsam xeb , mus cuag cov kev pab cuam lub neej ntawm hlau lug, raws li zoo raws li kom muaj nws kev thiab lub zog thaum lub sij hawm lub lag luam. Dua li ntawm qhov ntau yam ntawm txoj kev los xyuas kom meej anti-xeb txiav txim, siab tiv thaiv cov khoom los ntawm kev puas tsuaj los ntawm xeb nws yog tau tsuas yog nyob rau hauv uas tsis tshua muaj mob.

Cov hauj lwm zoo xws tiv thaiv nyob tsis tau tsuas yog nyob rau hauv qhov zoo ntawm cov tsuj taw technology, tab sis kuj los ntawm tej yam kev mob ntawm nws daim ntawv thov. Nyob rau hauv kev, cov hlau qauv savings piping lawv zoo tshaj plaws cov khoom qha electrochemical tiv thaiv tawm tsam xeb raws li nyob rau hauv lub cathodes. Tiv thaiv lub tsim ntawm xeb rau cov kev sib txuas lus yog, ntawm chav kawm, tsis yog tus tsuas teb ntawm daim ntawv thov ntawm no technology, tab sis nyob rau tag nrho cov yam ntxwv ntawm cov cheeb tsam no yuav ntshai ua tus tshaj cov electrochemical patronage.

To taub cov electrochemical tiv thaiv

Kev tiv thaiv ntawm cov hlau thaiv tus kab xeb los ntawm txoj kev electrochemical kev kho mob yog raws li nyob rau hauv lub dependence ntawm lub electrode tej zaum ntawm cov ntaub ntawv uas los ntawm cov kev ceev ntawm lub xeb txheej txheem. Hlau lug yuav tsum tau ua nyob rau hauv ib tug tej zaum ntau qhov chaw uas lawv anodic xaus yog hauv qab no lub pub txwv. Cov yav tas, incidentally, yog txiav txim los ntawm cov kev ntaub ntawv rau cov lag luam ntawm lub chaw.

Nyob rau hauv kev xyaum, cov electrochemical xeb tiv thaiv yuav txuas mus rau hauv lub tiav lawm cov khoom nrog ib tug qhov tam sim no qhov twg los. Cov hluav taws xob field nyob rau saum npoo thiab nyob rau hauv cov qauv ntawm cov kev tiv thaiv tus kwv generates polarization electrodes, vim corrosion thiab uas yog tshuaj kev puas tsuaj txheej txheem. Nyob rau hauv qhov tseeb, lub anodic chaw rau nws yog xim hlau qauv ua lub cathode, uas tshem tus tsis zoo dab, kom ntseeg tau txoj kev ruaj ntseg ntawm lub hom phiaj teeb tsa.

Cov kev khiav hauj lwm hauv paus ntsiab lus ntawm cathodic tiv thaiv

Muaj cathodic thiab anodic tiv thaiv ntawm lub electrochemical hom. Cov feem nrov tsis tau txais cov thawj tswvyim, uas yog siv los tiv thaiv lub pipelines. Raws li ib tug dav dav txoj ntsiab cai, qhov kev siv ntawm cov qauv no, cov kwv yog nkag nrog tam sim no los ntawm qhov tsis zoo ncej ntawm ib tug sab nraud qhov chaw. Nyob rau hauv kev, nws yuav yog li yuav muaj kev tiv thaiv steel los yog tooj liab raj, uas lub cathode polarization yuav tshwm sim nrog rau kev hloov feem ntawm lawv cov potentials nyob rau hauv lub anode lub xeev. Raws li ib tug tshwm sim, corrosion kev tiv thaiv cov qauv kev ua si yuav tsum raug txo kom yuav luag pes tsawg.

Nyob rau tib lub sij hawm, thiab cathodic tiv thaiv tej zaum yuav muaj ntau versions. Qhov saum toj no-piav cov txheej txheem yog dav xyaum polarization los ntawm ib tug sab nraud qhov chaw, tab sis cov ntsha uas ua zoo thiab deaeration txoj kev nrog zuj zus lawm ceev cathodic dab, raws li tau zoo raws li cov creation ntawm lub tsuj taw barrier.

Nws tau dua pom tias lub hauv paus ntsiab lus ntawm cathodic tiv thaiv yog pom tau hais los ntawm ib tug sab nraud tam sim no qhov twg los. Ua tau, nyob rau hauv nws cov hauj lwm yog qhov tseem ceeb muaj nuj nqi ntawm xeb tiv thaiv. Ua cov kev pab raws qib tshwj xeeb noj, uas yog feem ntau muaj nyob rau hauv tag nrho cov kev infrastructure pipeline txij nkawm.

Noj ntawm cathodic tiv thaiv tawm tsam xeb

Lub ntsiab muaj nuj nqi ntawm lub cathode chaw nres tsheb yog stably kom cov yam hlau nplaum nyob rau hauv raws li qhov tam sim no txoj kev cathodic polarization. Siv xws khoom nyob rau hauv lub infrastructure ntawm underground roj thiab roj pipelines, kav xa dej, cua sov tshuab thiab lwm yam

Muaj ntau ntau hom ntawm qhov chaw, feem ntau ntaus ntawv muab rau cathodic tiv thaiv hom:

• DC converter khoom;
• Hlau liner rau tus tiv thaiv tus kwv;
• Anode.

Nyob rau hauv cov ntaub ntawv no, muaj ib tug kev sib cais noj inverter thiab transformer. Nws muaj lwm yam classifications, tab sis lawv yog teem rau yim khiav lag luam rau lwm, los yog tau, los yog nyob rau cov kev tus yam ntxwv thiab tsis muaj lub tswv yim ntaub ntawv. Basic ntsiab cai ntawm kev ua hauj lwm feem ntau kom meej meej cov lus piv txwv ob qhia cathodic noj.

Transformer installation ntawm cathodic tiv thaiv

Tam sim ntawd nws yuav tsum tau muab sau tseg hais tias qhov no hom ntawm noj yog dhau caij nyoog. Rau nws ua haujlwm cia li tuaj inverter analogues, uas muaj ob qho tib si pluses thiab minuses. Xijpeem, transformer qauv siv txawm nyob rau hauv tshiab paragraphs muab cathodic tiv thaiv.

Raws li ib lub hauv paus ntawm tej khoom yog siv ib tug tsawg-zaus transformer 50 Hz thyristor converter. Tej yam yooj yim kiag li lawm, xws li mem tes-theem hwj chim kev cai rau thyristor tswj system. Ib tug ntau lub luag hauj lwm mus kom ze rau cov kev tswj kev pab raws qib yuav siv cov controllers nrog sab functionality.

Niaj hnub nimno cathodic xeb tiv thaiv ntawm pipelines los ntawm xws li cov khoom tau tso cai rau yuav tau kho cov ciaj ciam ntawm lub qhov zis tam sim no, voltage indicators, As, raws li zoo raws li dlhos tus tiv thaiv potentials. Raws li hais tsis zoo ntawm transformers, lawv yog txo mus rau ib tug high degree ntawm tam sim no ripple rau cov qhov tso zis nrog ib tug tsis muaj zog tau. Nws tau piav hais tias lub qhov khuam tsis yog ib tug sine yoj tam sim no daim ntawv no.

Daws tau qhov teeb meem ntawm ripple mus rau ib tug tej yam raws li tso cai rau lub qhia txog ntawm ib tsawg zaus caj pas system, tab sis nws qhov ntev sib haum mus rau qhov ntev ntawm lub transformer, uas yog tsis ib txwm tau mus ua xws li ib tug ntxiv.

Inverter chaw nres tsheb cathodic tiv thaiv

inverter installation raws li pulsed high-zaus converters. Ib tug ntawm lub ntsiab zoo ntawm kev siv cov nroj tsuag ntawm no hom yog ib tug high efficiency, xeeb 95%. Kev sib piv, lub transformer units, qhov no daim duab ib tug nruab nrab ntawm mus txog 80%.

Tej zaum tuaj mus rau fore, thiab lwm yam zoo. Piv txwv li, me me qhov ntev inverter noj nthuav txuj rau lawv daim ntawv thov mus nyuaj chaw. Tseem muaj nyiaj txiag kev pab, uas qhia xyaum ntawm tus siv ntawm tej khoom. Yog li, lub inverter cathodic xeb tiv thaiv ntawm pipelines them cov nqi tawm sai sai thiab yuav tsum tau tsawg heev nyob rau hauv peev txij nkawm. Txawm li cas los, cov qualities yog kom meej meej pom tsuas yog thaum muab piv nrog rau cov transformer sib, tab sis niaj hnub no muaj ntau zoo tshiab txhais tau tias ntawm cov kev muab hwj chim rau pipelines.

Tsim cathodic chaw nres tsheb

Tej khoom no uas muaj nyob rau hauv kev ua lag luam nyob rau hauv txawv vaj tse, duab thiab ntau thiab tsawg. Ntawm cov hoob kawm, ntau xyaum thiab ib tug neeg tsim xws li tshuab, uas tso cai rau koj mus tsis tau tsuas yog tau qhov zoo tshaj plaws rau cov kev xav tau kev pab ntawm qhov kev siv, tab sis kuj yuav muab cov kev tsim nyog operating tsis.

Nruj xam chaw nres tsheb yam ntxwv ntxiv tso cai rau optimize cov nqi ntawm nws cov installation, tsheb thauj mus los thiab cia. Piv txwv li, rau tej khoom me me heev haum cathodic xeb tiv thaiv ntawm pipelines rau lub hauv paus ntawm lub inverter hnyav 10-15 kg thiab ib lub hwj chim ntawm 1.2 kW. Khoom nrog xws li yam ntxwv yuav serviced thiab ib lub tsheb, tab sis rau cov loj-scale tej yaam num yuav ua tau ntau loj heev thiab hnyav tsob nroj, tau kev twb kev txuas ntawm cov tsheb thauj khoom, ib tug crane thiab ib pab neeg ntawm installers.

kev tiv thaiv functionality

Kev mloog yog them rau txoj kev loj hlob ntawm cathodic tiv thaiv noj ntawm cov khoom nws tus kheej. No kev system, uas qhov chaw nres tsheb los tiv thaiv tiv thaiv luv luv Circuit Court thiab breakage loads. Nyob rau hauv thawj cov ntaub ntawv peb siv tshwj xeeb kev nyab xeeb pab kiag li lawm, uas rau cov txheej txheem thaum muaj xwm ceev lag luam chaw.

Raws li rau jumps thiab so voltage, lub chaw nres tsheb ntawm cathodic tiv thaiv yog tsis zoo li yuav tsum tau tiag cuam tshuam los ntawm lawv, tab sis muaj ib tug uas yuav muaj hluav taws xob poob siab. Piv txwv li, yog tias ib tug tej hom yog ua los ntawm cov uas tsis muaj voltage khoom, tom qab ib tug dhia nyob rau hauv breakage ntsuas yuav coj mus rau 120 V.

Lwm yam kev electrochemical tiv thaiv

Nyob rau hauv tas li ntawd mus rau lub cathodic kev tiv thaiv thiab hluav taws xob kua xyaum technology thiab sacrificial xeb tiv thaiv hom kev kawm. Cov tseem pheej cheeb tsam no yog hais tias yuav ib tug tshwj xeeb patronage ntawm xeb thiab corrosion. Nyob rau hauv cov ntaub ntawv no kuj txuas mus rau lub hom phiaj active ntsiab uas tso cai rau hloov dua siab tshiab ntawm qhov chaw ntawm lub cathodes los ntawm cov tam sim no. Piv txwv li, steel yeeb nkab raws li ib feem ntawm lub raj dej yuav muaj kev tiv thaiv nrog zinc los yog txhuas thooj voos kheej kheej.

xaus

Txoj kev ntawm electrochemical tiv thaiv tsis tau ntaus nqi mus rau qhov tshiab thiab qhov ntau txoj. Cov hauj lwm zoo ntawm kev siv ntawm tej hom kev kawm nyob rau hauv sib ntaus tawm tsam tus kab xeb dab mastered ntev dhau los. Txawm li cas los, lub thoob plaws nthuav tawm ntawm cov txheej txheem no tsis pub ib tug loj drawback. Lub fact tias cov cathodic tiv thaiv ntawm pipelines los ntawm xeb inevitably muaj thiaj li hu ua loj leeb currents. Lawv yog cov tsis txaus ntshai rau lub hom phiaj qauv, tab sis tej zaum yuav muaj ib tug tsis zoo feem on yam khoom nyob ze. Nyob rau hauv kev, lub vagus tam sim no muaj txhawb mus rau tib xeb rau nws yog xim hlau chaw ntawm lub nyob ib sab hlab.