{"id":2849,"date":"2020-07-14T06:14:18","date_gmt":"2020-07-14T06:14:18","guid":{"rendered":"https:\/\/3.212.105.250\/?p=2849"},"modified":"2025-07-26T15:09:34","modified_gmt":"2025-07-26T21:09:34","slug":"dva-typy-systemu-katodicke-ochrany","status":"publish","type":"post","link":"https:\/\/vm6fr4whzn6.c.updraftclone.com\/cs\/2020\/07\/14\/dva-typy-systemu-katodicke-ochrany\/","title":{"rendered":"Dva typy syst\u00e9m\u016f katodick\u00e9 ochrany"},"content":{"rendered":"

Katodick\u00e1 ochrana je speci\u00e1ln\u00ed syst\u00e9m ur\u010den\u00fd k ochran\u011b proti korozi. Jedn\u00e1 se o proces, kter\u00fd zabra\u0148uje vzniku koroze na kovov\u00fdch povr\u0161\u00edch, a to i ve velmi korozivn\u00edm prost\u0159ed\u00ed. Jedn\u00e1 se o nej\u00fa\u010dinn\u011bj\u0161\u00ed formu protikorozn\u00ed ochrany pro mnoho pr\u016fmyslov\u00fdch odv\u011btv\u00ed. Pod\u00edvejte se na toto rozd\u011blen\u00ed dvou typ\u016f syst\u00e9m\u016f katodick\u00e9 ochrany a zjist\u011bte, jak\u00e9 jsou mezi nimi rozd\u00edly a podobnosti.<\/p>\n\n\n\n

Co je to syst\u00e9m katodick\u00e9 ochrany?<\/h2>\n\n\n\n

Tyto syst\u00e9my pom\u00e1haj\u00ed zastavit korozi vytvo\u0159en\u00edm elektrochemick\u00e9ho \u010dl\u00e1nku. Tento obvod funguje podobn\u011b jako velmi velk\u00e1 baterie, kde n\u011bkter\u00fd kov (nebo struktura) koroduje, zat\u00edmco jin\u00fd kov nekoroduje (katoda nekoroduje). Skute\u010dnost, \u017ee katoda v t\u011bchto elektrick\u00fdch \u010dl\u00e1nc\u00edch nekoroduje, je d\u016fvodem, pro\u010d se jim \u0159\u00edk\u00e1 katodick\u00e1 ochrana. C\u00edlem je vytvo\u0159it konstrukci, kterou chcete. chr\u00e1nit katodu<\/a>. To lze prov\u00e9st n\u011bkolika zp\u016fsoby; ka\u017ed\u00fd z nich zaji\u0161\u0165uje, \u017ee v bu\u0148ce koroduje n\u011bjak\u00e1 jin\u00e1 struktura, o kterou se nestar\u00e1te.<\/p>\n\n\n\n

Syst\u00e9my ob\u011btovan\u00e9 katodick\u00e9 ochrany<\/h2>\n\n\n\n

Tyto syst\u00e9my funguj\u00ed na z\u00e1klad\u011b vyu\u017eit\u00ed ob\u011btn\u00edch anod. Galvanick\u00e9 koroze se dosahuje pomoc\u00ed elektrochemick\u00e9ho procesu, kter\u00fd elektricky propojuje v\u00edce kov\u016f. Vyu\u017eit\u00ed ob\u011btn\u00edch anod chr\u00e1n\u00ed kovov\u00e9 konstrukce p\u0159ed galvanickou koroz\u00ed. Na adrese ob\u011btn\u00ed anoda je kovov\u00e1 anoda.<\/a> kter\u00fd je z\u00e1m\u011brn\u011b elektricky spojen s konstrukc\u00ed, proto\u017ee je reaktivn\u011bj\u0161\u00ed v\u016f\u010di korozivn\u00edmu prost\u0159ed\u00ed ne\u017e vlastn\u00ed kov. T\u00edm se chr\u00e1n\u00ed kovov\u00e1 konstrukce, proto\u017ee korozi podl\u00e9h\u00e1 sp\u00ed\u0161e ob\u011btn\u00ed anoda ne\u017e konstrukce. Tyto ob\u011btn\u00ed anody se mus\u00ed po zkorodov\u00e1n\u00ed vym\u011bnit, ale tento proces je dlouhodob\u00fd a \u00fasp\u011b\u0161n\u00fd p\u0159i ochran\u011b konstrukc\u00ed p\u0159ed koroz\u00ed. Typick\u00fdmi materi\u00e1ly anod jsou hlin\u00edk, zinek a ho\u0159\u010d\u00edk.<\/p>\n\n\n\n

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Lo\u010f s galvanick\u00fdmi anodami<\/strong><\/p>\n\n

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\u017divotnost galvanick\u00e9ho syst\u00e9mu z\u00e1vis\u00ed na konstruk\u010dn\u00edch po\u017eadavc\u00edch, po\u010dtu a hmotnosti pou\u017eit\u00fdch anod a na pot\u0159eb\u00e1ch z\u00e1kazn\u00edka. Tyto syst\u00e9my mohou b\u011b\u017en\u011b fungovat a\u017e 20 let v z\u00e1vislosti na m\u00edstn\u00edch typech p\u016fdy. Galvanick\u00e9 syst\u00e9my jsou obecn\u011b vhodn\u00e9 pro p\u016fdy s ni\u017e\u0161\u00edm odporem a pro aplikace pod vodou.<\/p>\n\n\n\n

Syst\u00e9my katodick\u00e9 ochrany s impulzn\u00edm proudem<\/h2>\n\n\n\n

Druh\u00fd typ syst\u00e9mu se naz\u00fdv\u00e1 impulzn\u00ed syst\u00e9m a obvykle se pou\u017e\u00edv\u00e1 v p\u0159\u00edpadech, kdy galvanick\u00e9 syst\u00e9my nesta\u010d\u00ed k zabr\u00e1n\u011bn\u00ed koroze. Syst\u00e9my s impulzn\u00edm proudem chr\u00e1n\u00ed kovov\u00e9 konstrukce i v t\u011bch nejextr\u00e9mn\u011bj\u0161\u00edch korozn\u00edch prost\u0159ed\u00edch. V syst\u00e9mu s impulzn\u00edm proudem je aktivn\u00ed zdroj stejnosm\u011brn\u00e9ho proudu, kter\u00fd umo\u017e\u0148uje, aby do kovov\u00e9 konstrukce tekl v\u011bt\u0161\u00ed proud. Sv\u00fdm zp\u016fsobem tak zaji\u0161\u0165uje st\u00e1l\u00fd proud ochrany p\u0159ed koroz\u00ed. Jedn\u00e1 se o jeden z nej \u00fa\u010dinn\u00e9 metody prevence koroze<\/a> a m\u00e1 mimo\u0159\u00e1dn\u011b dlouhou \u017eivotnost.<\/p>\n\n\n\n

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Sm\u011bsn\u00e1 kovov\u00e1 anoda (impulzn\u00ed proud)<\/strong><\/p>\n\n

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Syst\u00e9my s impulzn\u00edm proudem vyu\u017e\u00edvaj\u00ed usm\u011br\u0148ova\u010d, kter\u00fd vytla\u010duje proud ze zakopan\u00e9 nebo pono\u0159en\u00e9 anody. Hnac\u00ed nap\u011bt\u00ed t\u011bchto syst\u00e9m\u016f je nastaviteln\u00e9 v z\u00e1vislosti na m\u00edstn\u00ed p\u016fd\u011b a zb\u00fdvaj\u00edc\u00ed \u017eivotnosti anody. Po\u017eadovan\u00fd v\u00fdstupn\u00ed proud se m\u016f\u017ee zna\u010dn\u011b li\u0161it v z\u00e1vislosti na instalaci, p\u0159i\u010dem\u017e n\u011bkter\u00e9 instalace, jako nap\u0159\u00edklad nepota\u017een\u00e9 piloty mo\u0159sk\u00fdch zd\u00ed, vy\u017eaduj\u00ed stovky amp\u00e9r\u016f. Impedan\u010dn\u00ed syst\u00e9my jsou nejvhodn\u011bj\u0161\u00ed pro p\u016fdy s vysok\u00fdm odporem a pro syst\u00e9my s vysok\u00fdmi po\u017eadavky na proud.<\/p>\n\n\n\n

Mezi typick\u00e9 anody s impulzn\u00edm proudem pat\u0159\u00ed sm\u011bsn\u00fd oxid kov\u016f (MMO), litina, ocel, grafit nebo st\u00e1vaj\u00edc\u00ed kovov\u00fd \u0161rot. \u017divotnost t\u011bchto syst\u00e9m\u016f m\u016f\u017ee b\u00fdt a\u017e 40 a\u017e 50 let, p\u0159i\u010dem\u017e typick\u00e1 konstruk\u010dn\u00ed \u017eivotnost je 25-30 let. Po dosa\u017een\u00ed konce \u017eivotnosti je t\u0159eba nainstalovat novou anodu a syst\u00e9m lze vr\u00e1tit do provozu.<\/p>\n\n\n\n

Nadm\u011brn\u00e1 aplikace proudu z t\u011bchto syst\u00e9m\u016f m\u016f\u017ee v\u00e9st k probl\u00e9m\u016fm s va\u0161\u00ed konstrukc\u00ed. Tyto probl\u00e9my mohou zahrnovat vod\u00edkovou k\u0159ehkost a rozpad povlaku. Zajist\u011bte, aby byl syst\u00e9m pravideln\u011b kontrolov\u00e1n licencovan\u00fdm odborn\u00edkem. in\u017een\u00fdr, kter\u00fd zajist\u00ed spr\u00e1vnou ochranu va\u0161\u00ed konstrukce<\/a>.<\/p>\n\n\n\n

Jak\u00fd syst\u00e9m pot\u0159ebujete?<\/h2>\n\n\n\n

Syst\u00e9m, kter\u00fd doporu\u010d\u00ed odborn\u00fd in\u017een\u00fdr, z\u00e1vis\u00ed do zna\u010dn\u00e9 m\u00edry na po\u017eadavc\u00edch a specifikac\u00edch projektu. Pokud nev\u00edte, co pou\u017e\u00edt nebo kde za\u010d\u00edt, je prvn\u00edm krokem vyhled\u00e1n\u00ed licencovan\u00e9ho in\u017een\u00fdra, kter\u00fd v\u00e1m pom\u016f\u017ee rozhodnout se mezi syst\u00e9my katodick\u00e9 ochrany. Ka\u017ed\u00fd syst\u00e9m m\u00e1 sv\u016fj sc\u00e9n\u00e1\u0159 nejlep\u0161\u00edho pou\u017eit\u00ed, a \u010d\u00edm d\u0159\u00edve si jej po\u0159\u00edd\u00edte. specialista na katodickou ochranu<\/a> \u010d\u00edm d\u0159\u00edve a levn\u011bji bude syst\u00e9m zapojen. In\u017een\u00fdr mus\u00ed zkontrolovat v\u0161echny pl\u00e1ny uzemn\u011bn\u00ed, odpor p\u016fdy a potrub\u00ed. pl\u00e1ny elektrick\u00e9 izolace za \u00fa\u010delem dimenzov\u00e1n\u00ed a n\u00e1vrhu<\/a> spr\u00e1vn\u011b pou\u017e\u00edvat v\u00e1\u0161 syst\u00e9m. Oba syst\u00e9my funguj\u00ed nejefektivn\u011bji na konstrukc\u00edch s povrchovou \u00fapravou, kde lze n\u00e1t\u011br vyu\u017e\u00edt.<\/p>\n\n\n\n

Obra\u0165te se na spole\u010dnost Dreiym Engineering a vy\u017e\u00e1dejte si ve\u0161ker\u00e9 informace o katodick\u00e9 ochran\u011b. Na\u0161i profesion\u00e1ln\u00ed in\u017een\u00fd\u0159i mohou dokon\u010dit pr\u016fzkum cp <\/a>a pom\u016f\u017ee v\u00e1m ur\u010dit nejlep\u0161\u00ed postup, jak zabr\u00e1nit korozi va\u0161\u00ed kovov\u00e9 konstrukce. Zam\u011bstn\u00e1v\u00e1me t\u00fdm licencovan\u00fdch in\u017een\u00fdr\u016f, kte\u0159\u00ed s v\u00e1mi vypracuj\u00ed pl\u00e1n, kter\u00fd nejl\u00e9pe ochr\u00e1n\u00ed va\u0161e konstrukce p\u0159ed \u0161kodliv\u00fdmi \u00fa\u010dinky koroze.<\/p>\n\n\n\n

<\/p>","protected":false},"excerpt":{"rendered":"

Cathodic protection is a specialty system designed to keep corrosion at bay. It is a process that prevents corrosion from forming on metal surfaces, even in very corrosive environments. It is the most effective form of corrosion protection for many industries. Check out this breakdown of the two types of cathodic protection systems to discover […]<\/p>\n","protected":false},"author":8,"featured_media":3472,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_mbp_gutenberg_autopost":false,"_pgmb_is_evergreen":true,"_pgmb_ap_template_id":0,"iawp_total_views":289,"footnotes":""},"categories":[5],"tags":[],"class_list":["post-2849","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-corrosion-and-cathodic-protection"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t