Cathodic kuchengetedzwa: kushanda uye mitemo

Ngura - makemikari uye electrochemical maitiro simbi pamwe kwezvakatipoteredza, zvichiita kukuvara. Inoyerera panguva yakasiyana aimhanya, izvo zvinogona kuderedzwa. Kubva inoshanda nemaonero kufarira ndiwo Anti-ngura cathodic kudzivirira simbi hurongwa neVadzidzi pasi, nemvura uye pamwe nenhepfenyuro. Kunyanya dzaparadzwa panze mutopota pemvura pamigumisiro ivhu uye pasi dzenzvimbo.

Inside ngura kunobva ehupfumi ari svikiro. Kana gasi, inofanira kucheneswa kwazvo kubva unyoro uye kungatikanganisa zvinhu, rehydrogen sulfide, okisijeni uye nevamwe.

musimboti oparesheni

Vanovengwa electrochemical ngura mugadziriro svikiro simbi uye inowanikwa therebetween. Wednesday, riri yemanyorero ivhu nyoro kana mvura, ane zvakanaka zvemagetsi conductivity. At inowanikwa pakati payo uye simbi nemamiriro electrochemical kuita kunoitika. Kana uine kuitika (the anode electrode), simbi ions zvakaitika munzvimbo dzakapoteredza mhinduro, iyo inotungamira kukurasikirwa guru zvesimbi. Zvaakazoita kunokonzera ngura. Nezvisingafadzi uno (the cathode electrode) vane Nokurasikirwa izvi, sezvo maerekitironi kuyambukira mhinduro. Nzira inoshandiswa electroplating kushandisa coatings kuti simbi pakati ferrous simbi.

Cathodic Kudzivirira ngura rinoitwa kana chinhu ari kusvitsa kubva kunaka zvinogona resimbi.

Nokuti chinangwa ichi, akaisa muvhu uye anode electrode chokuita zvakanaka zvinogona kwachiri pasimba kwaibva. Muduku akapa kune kuchengetedzwa chinhu. Cathodic kuchengetedzwa anode kunotungamirira basa kudzikisirana kubva ngura yacho anode electrode chete. Saka, zvinofanira kutsiviwa nguva nenguva.

The akaipa mugumisiro galvanic ngura

mapurani ngura anogona kuitika kubva kuitwa rakarasika dzenzvimbo kupinda dzimwe gadziriro. Ivo anobatsira nhovo huru asi kukuvadza chinokosha kune kunyatsotevera munzvimbo dzokuzororera dzaiva zvivako. Rakarasika dzenzvimbo zvinogona anoparadzirwa rails yakafadza senga. Vanoenda kurutivi substation uye yakarova pombi. Kana goho izvo wakaumba anodic nzvimbo, zvichikonzera zvikuru ngura. Kuti adzivirire aishanda yemagetsi abudise - chaiwo ano kushaya kubva Mapaipi kunobva. Zvinogonekawo cathodic kudzivirira mapaipi pamusoro ngura. Nokuti ichi zvakafanira kuziva kwakakura rakarasika dzenzvimbo, ayo kuyerwa chaiwo namano.

Maererano migumisiro magetsi kuyerwa vakasarudzwa nzira kudzivirirwa Mapaipi. Achishandisa Universal ndiyo kungotarisa nzira mutopota kuputira revhu kuonana kuburikidza insulating coatings. Cathodic kudzivirirwa Mapaipi chokuita chinoshingaira nzira.

kudzivirira mapaipi

Design muvhu kudzivirira pamusoro ngura, kana iwe batanidza kwavari kubvisa kugara kuitika kupi uye ndinoiitawo - kuti anode electrode, kunoviga pasi inotevera. Current runoyerera kuti mamiriro, kudzivirira kubva ngura. Saka zvakabudisa cathodic kudzivirirwa mapaipi, matangi kana mapaipi iri muvhu.

The anodic electrode achava kuipa uye anofanira nguva kutsiviwa. Nokuti tangi izere nemvura electrodes vanoiswa mukati. The mvura chinhu electrolyte kuburikidza iyo kuitika runoyerera kubva anodes kusvika mugaba pamusoro. The electrodes vari zvakanaka dzinodzorwa, uye vari nyore kutsiva. Ivhu rakaoma zvikuru kuita.

simba zvitengeswa

Pedyo mafuta uye gasi mapaipi, kudziyisa uye mvura network, izvo zvinoda dziviriro cathodic, asimbise Nhepfenyuro iyo ine voltage rinoshandiswa zvinhu. Kana vari anoiswa pachena mhepo, ukuru kudzivirirwa kunofanira zvinenge IP34. For akaoma makamuri kukodzera chero.

Stations pamusoro cathodic kudzivirirwa mapaipi uye zvimwe zvivako zvikuru vane inokwana 1 kusvika 10 KW.

simba ravo parameters kuvimba achinyanya zvinhu zvinotevera:

• nemishonga pakati ivhu uye anode;
• ivhu conductivity;
• Kureba kuchengeteka mapazi;
• yokunamisa insulating kushanda.

Setsika, kuti transducer chinhu cathodic kuchengetedzwa transformer installation. Zvino yatsiviwa inverter, pamwe saizi yayo maduku, nani kutsiga uye zvikuru simba kunyatsoshanda. Munzvimbo inokosha kuisa controllers rine kuitika uye voltage murau mashandiro, kunangiswa nezvimwe potentials anodzivirira.

Equipment akasuma kumusika nenzira dzakasiyana. Nokuti nezvinodiwa chaizvo ari vakashandisa tsika design, ichipa yakanaka nokushanda ezvinhu.

Parameters kuitika mabviro

Kudzivirira ngura dare unodzivirira zvinogona ndiyo 0.44 V. In uchidzidzira kuva mukuru nokuda kufurirwa inclusions uye pose ezvinhu simbi. The kunonyanyisa ukoshi 1 V. pamberi simbi coatings ari kuitika pakati electrodes ndiyo 0,05 Ma / m ^2. Kana kuputira yaputswa, izvozvo chinowedzera 10 Ma / m ^2.

kudzivirirwa Cathodic unoshanda akabatana dzimwe nzira, nekuti zvishoma simba wapera. Kana pamusoro mamiriro ane lacquer unhani, electrochemically akadzivirirwa nzvimbo chete umo chibharo.

Zvinoumba cathodic kudzivirira

1. Power mabhuku vari yemapurisa kana vogadzira emagetsi.
2. Location anode Mibhedha kunobva chaizvo kuti mapaipi. A urongwa muitiro anogona kuparadzirwa kana pfungwa, uye akaiswa panguva dzakasiyana pakadzika.
3. Anode zvinhu anosarudzwa pamwe yakaderera solubility, izvozvo kuvaringana makore 15.
4. Anotarisirwa unodzivirira munda rinowanikwa rimwe Mapaipi. Ari hakunyatsotarisirwi, kana zvivako hazvina unodzivirira unhani.

Standard zvinodiwa "Gazprom" nokuti Cathodic Protection

• Action pakararama kudzivirirwa.
• Kudzivirira mumhepo overvoltage.
• Achiisa pazviteshi zviri chinogumbura-mabhokisi kana freestanding vandal nemishonga.
• Anodic grounding vakasarudzwa munzvimbo ine shoma zvemagetsi nemishonga ivhu.
• transducer unhu vanosarudzwa inobva yakwegura ari runodzivirira yokunamisa Mapaipi.

hwezvibayiro kuchengetedzwa

Nzira mufananidzo cathodic kudzivirira maererano electrodes kupfuura zvimwe electronegative simbi kuburikidza conductive svikiro. Musiyano iri pasina ane simba rine. Musvine ngura zvinotora pamusoro pacharo, Kuparadzwa mune conductive ezvinhu.

Makore mashomanana gare gare anode anofanira kutsiviwa, nokuti rinobudiswa.

Kubata anode kunowedzera vasanyanye ake sanduko kuramba zvakatipoteredza. Nokufamba kwenguva, izvozvo zvinogona zvinenge zvakazara marongera ngura. Izvi zvinoguma murombo magetsi kuonana. Kana kuiswa anode musanganiswa munyu ichipa pokufa ngura zvigadzirwa, kushanda zvakanaka kuri nani.

Zvazvakaita musvine zvishoma. Nharaunda pakutsvaga yemagetsi kurwisa zviri svikiro uye zvinogona musiyano pakati anode uye cathode.

Hwezvibayiro vakadzivirirwa pasina Zvakarurama simba bhuku, kana apo zvavo kushandisa haisi mari noitika. Uyewo disadvantageous kana kushandiswa acidic runyararo nokuda mukuru mwero pokufa anodes. Aidzivirira vakatasva mumvura, muvhu kana kwazvakarerekera svikiro. The anodes chainge chakagadzirwa nesimbi akachena havawanzodi kuita. zingi nemukuparadzwa kunoitika vanoiswa, magnesium kukanganisa zvakare nokukurumidza, uye aruminiyamu oxides vanoumba yakasimba firimu.

zvinhu aidzivirira

To anotsika vane inodiwa kuita unhu, zvinogadzirwa kubva alloys dzinotevera dopants.

• Zn + 0,025-0,15% Cd + 0,1-0,5% Al - kudzivirira midziyo iri yomugungwa.
• Al + 8% Zn + 5% MG + Cd, In, GL, HG, TL, MN, Si (chikamu chimwe muzana) - kushanda zvivako nenguo yomugungwa.
• MG + 5-7% Al + 2-5% Zn - kudzivirira zvivako zviduku muvhu kana mumvura ine pasi munyu wevasungwa.

Kusashandiswa zvimwe anotsika kunotungamirira migumisiro yakaipa. Anodes dzakagadzirwa magnesium kunogona kukonzera Cracking pamusoro midziyo nokuda kukura rehydrogen embrittlement.

Musvine joini cathodic kudzivirira ngura coatings kunonatsiridza kugona kwaro.

unodzivirira Kuparadzirwa kuitika zviri nani uye anodes zvaida iri shoma zvikuru. Mumwe magnesium anode inodzivirira bhitumini zvemapuranga nenyere ari kureba 8 km uye uncoated - chete mamita 30.

Ngura kudzivirira motokari mitumbi

Kana bemhapemha ukobvu kutyora motokari muviri anogona kuderedzwa muna 5 makore anosvika 1 neMM, t. E. Through ngura. Kudzoreredzwa runodzivirira kunokosha, asi Kuwedzera ine nzira kupedzisa kumbomira pakati ngura muitiro pachishandiswa cathodic galvanic kudzivirirwa. Kana ukadzokera muviri kuva cathode chesimbi ngura hunoguma. Anodes zvingava chero conductive pamusoro, chiri pedyo: ndiro simbi, kuti grounding kutenderera garaji kwedzimba, nemadhaka mugwagwa pamusoro. Panyaya iyi, kubudirira kudzivirirwa kunowedzera nzvimbo yacho anode. Kana anode ndiye mugwagwa pamusoro, kutaura kwavari kushandisa "Muswe" ari metallized rabha. It anoiswa pamberi engoro, kuti zviri nani kuwa pfapfaidzo. "Muswe" iri kure mumuviri.

Pakazosvika anode zvakabatana nomukombiyuta bhatiri ndinoiitawo 1 kohm resistor uye zvakabatana muna ngaatevedzane nayo akatungamirira. Kana kuvharwa Dunhu kuburikidza anode kana chokuita nomuviri akaipa mune kuipa nzira akatungamirira kunovhenekera faintly. Kana rinobvira zvakajeka, zvinoreva kuti dunhu pfupi kwakaitika remudunhu. Chikonzero inofanira kuwanikwa uye zvachose.

Kuti adzivirire sequentially chuma vanofanira kuisa fiyuzi.

Kana motokari iri mugaraji kwayo anode kwakabatana pasi. Munguva kwebasa kubatana kunoitika kuburikidza "muswe."

mhedziso

kudzivirirwa Cathodic ndiyo nzira kuwedzera operative rakavimbika pachivande mapaipi nedzimwe nhengo. Zvinofanira kufunga ayo inokanganisa pedyo mitsetse pasimba rakarasika dzenzvimbo.