{"id":81,"date":"2020-07-17T20:21:32","date_gmt":"2020-07-17T20:21:32","guid":{"rendered":"http:\/\/www.misirliogullari.com\/?page_id=81"},"modified":"2020-07-17T20:21:32","modified_gmt":"2020-07-17T20:21:32","slug":"katodik-kontrolu","status":"publish","type":"page","link":"https:\/\/www.misirliogullari.com\/index.php\/katodik-kontrolu\/","title":{"rendered":"Katodik Kontrol\u00fc"},"content":{"rendered":"\n<p><em><strong>Korunacak metali olu\u015fturulacak bir elektrokimyasal h\u00fccrenin katodu haline getirerek metal y\u00fczeyindeki anodik ak\u0131mlar\u0131n giderilmesi i\u015flemidir.<\/strong><\/em><\/p>\n\n\n\n<p>Korozyon olay\u0131 bu iki reaksiyonun bir arada y\u00fcr\u00fcmesi ile ger\u00e7ekle\u015fir. Elektronlar anottan katoda do\u011fru metal \u00fczerinden akar ve katot reaksiyonu anottan gelen bu elektronlar\u0131 kullanarak y\u00fcr\u00fcr.Katot reaksiyonu i\u00e7in gerekli elektronlar d\u0131\u015f kaynaktan verilecek olursa, anot reaksiyonu ile elektron \u00fcretilemez. Bu durumda anottaki korozyon olay\u0131 durmu\u015f olur.Metale d\u0131\u015ftan uygulanan ak\u0131m ile verilen elektronlar, metal y\u00fczeyinde y\u00fcr\u00fcmekte olana anodik reaksiyonlar\u0131 tam olarak durdururken, katodik reaksiyonun h\u0131z\u0131n\u0131 da artt\u0131r\u0131r. Anot reaksiyonu art\u0131k korunmakta olan metalin y\u00fczeyinde de\u011fil, katodik koruma devresinde bulunan anotta y\u00fcr\u00fcr. Korunmakta olan metal y\u00fczeyi art\u0131k tam olarak katot olur.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><img decoding=\"async\" src=\"http:\/\/www.olcum.org\/images\/Adsz.jpg\" alt=\"\"\/><\/figure>\n\n\n\n<p><strong>DI\u015e AKIM KAYNAKLI KATOD\u0130K KORUMA<\/strong><br>D\u0131\u015ftan, bir trafo redres\u00f6r arac\u0131l\u0131\u011f\u0131 ile do\u011fru ak\u0131m uygulan\u0131r.<br>(-) u\u00e7 metale, (+) u\u00e7 anoda ba\u011flan\u0131r.<br>Ak\u0131m \u015fiddeti korunacak metalin y\u00fczey alan\u0131na ve metalin i\u00e7inde bulundu\u011fu ortam\u0131n koroziflik derecesine ba\u011fl\u0131d\u0131r.<\/p>\n\n\n\n<p><strong>GALVAN\u0130K ANOTLU KATOD\u0130K KORUMA<\/strong><br>Genelde hemen hemen t\u00fcm benzin istasyonlar\u0131nda bu t\u00fcr katodik koruma sistemi kullan\u0131lmaktad\u0131r.Korunacak metal yap\u0131ya kendinden daha aktif bir metal ba\u011flanarak galvanik h\u00fccre olu\u015fturulur.<br>Katodik koruma devresinden ak\u0131m ge\u00e7ebilmesi i\u00e7in anot ve katot aras\u0131nda devre direncini yenebilecek kadar bir potansiyel fark\u0131n\u0131n olmas\u0131 gerekir.<br>Galvanik anottan \u00e7ekilen ak\u0131m, galvanik anodun a\u00e7\u0131k devre potansiyeli ile devre direncinin b\u00fcy\u00fckl\u00fc\u011f\u00fcne ba\u011fl\u0131d\u0131r.<\/p>\n\n\n\n<p>Katodik Koruma Rapor \u00d6rne\u011fi :&nbsp;<em><strong><a href=\"http:\/\/www.mustafafazlioglu.com.tr\/wp-content\/uploads\/2020\/01\/KATODIK-KORUNMA-RAPORU.pdf\" target=\"_blank\" rel=\"noreferrer noopener\">katodik raporu<\/a><\/strong><\/em><\/p>\n\n\n\n<figure><iframe loading=\"lazy\" width=\"640\" height=\"359\" src=\"https:\/\/www.dailymotion.com\/embed\/video\/x4g7xoi\" allowfullscreen=\"\"><\/iframe><\/figure>\n\n\n\n<p><strong>KATOD\u0130K KORUMA \u00d6L\u00c7\u00dcM\u00dc NASIL YAPILIR ?<\/strong><\/p>\n\n\n\n<p>Katodik korumay\u0131 \u00e7evrenizde en \u00e7ok petrol ofislerindeki LPG tanklar\u0131nda g\u00f6r\u00fcrs\u00fcn\u00fcz. Bunlar\u0131n \u00e7o\u011fu da&nbsp; Galvanik Anotlu katodik koruma y\u00f6ntemini se\u00e7mi\u015ftir.<\/p>\n\n\n\n<p><strong>REFERANS ELEKTRODUNUN KULLANILMASI&nbsp;<\/strong><\/p>\n\n\n\n<p>Referans elektrodunun \u00fcst tapas\u0131 a\u00e7\u0131larak i\u00e7erisine Bak\u0131r S\u00fclfat eriyi\u011fi konur ve tapa kapat\u0131l\u0131r. A\u015fa\u011f\u0131daki&nbsp; tapa Bak\u0131r S\u00fclfat eriyi\u011fini emdi\u011fi anda Referans elektrodu kul an\u0131lmaya haz\u0131rd\u0131r. Referans elektrodu kul an\u0131ld\u0131ktan sonra uzun s\u00fcre kul an\u0131lmayacak ise, i\u00e7erisindeki eriyik bo\u015falt\u0131l\u0131r. Referans elektrodunun eriyik i\u00e7erisine batan Bak\u0131r \u00e7ubu\u011fu temizlenip (z\u0131mpara ile) Referans elektrodu bir naylon po\u015fet i\u00e7erisine konularak saklan\u0131r.<\/p>\n\n\n\n<p><strong>KATOD\u0130K KORUMA S\u0130STEM\u0130NDEN&nbsp;\u00d6L\u00c7\u00dcM ALINMASI<\/strong><\/p>\n\n\n\n<p>Katodik koruma sisteminde 3 adet Potansiyel, 1 adet ak\u0131m \u00f6l\u00e7\u00fcm\u00fc olmak \u00fczere&nbsp;4 adet \u00f6l\u00e7\u00fcm&nbsp;yap\u0131l\u0131r.<\/p>\n\n\n\n<p><strong>1.\u00d6L\u00c7\u00dcM (Sistem(Katod ve Anot birbirine ba\u011fl\u0131) \/Toprak Potansiyeli) :&nbsp;<\/strong><\/p>\n\n\n\n<p>\u00d6l\u00e7\u00fc kutusunda bulunan Anotdan gelen u\u00e7 ile tanktan (Katod) gelen ucunu biribirine \u015f\u00f6ntl\u00fc vaziyetinde yap\u0131l\u0131r. Avometre D.C. 2 V. kademesine al\u0131n\u0131r. Referans elektrodu Sistemin Max. 50 cm. uza\u011f\u0131na a\u011fa\u00e7 tapa topra\u011fa g\u00f6m\u00fclecek \u015fekilde konulur. Konulan toprak kuru ise buraya birazc\u0131k saf su d\u00f6k\u00fcl\u00fcr. Avometrenin bir \u00e7ubu\u011fu Referans elektroduna di\u011fer \u00e7ubu\u011fu \u00f6l\u00e7\u00fc&nbsp;kutusu i\u00e7erisinde bulunan \u015e\u00f6nte de\u011fdirilerek potansiyel okunur.&nbsp;<\/p>\n\n\n\n<p>Bu potansiyelin de\u011feri&nbsp;<a><strong>(850-1700 mV)<\/strong><\/a>&nbsp;olmal\u0131d\u0131r.<\/p>\n\n\n\n<p><strong>2.\u00d6L\u00c7\u00dcM (Anot \/Toprak Potansiyeli) :&nbsp;<\/strong><\/p>\n\n\n\n<p>\u00d6l\u00e7\u00fc kutusunda bulunan \u015f\u00f6nt\u00fcn s\u00f6k\u00fclm\u00fc\u015f durumunda yap\u0131l\u0131r. Avometre ve referans elektrodu \u00f6l\u00e7\u00fcm 1\u2019de tarif edildi\u011fi gibi ayarlan\u0131r. Avometrenin bir \u00e7ubu\u011fu kutuplara s\u0131ra ile de\u011fdirilir. Y\u00fcksek potansiyel de\u011feri veren kutup anottan gelen kablonun ba\u011fl\u0131 oldu\u011fu kutuptur.<\/p>\n\n\n\n<p>Bu de\u011fer&nbsp;<strong>(1100-1700 mV)<\/strong>.&nbsp;aras\u0131nda de\u011fi\u015fir.<\/p>\n\n\n\n<p><strong>3.\u00d6L\u00c7\u00dcM (Tank (Katod) \/Toprak Potansiyeli):&nbsp;<\/strong><\/p>\n\n\n\n<p>\u00d6l\u00e7\u00fc kutusunda bulunan \u015f\u00f6nt\u00fcn s\u00f6k\u00fclm\u00fc\u015f durumunda yap\u0131l\u0131r. Avometre ve referans elektrodu \u00f6l\u00e7\u00fcm 1\u2019de tarif edildi\u011fi gibi ayarlan\u0131r. Avometrenin bir \u00e7ubu\u011fu (Referans elektroduna ba\u011fl\u0131 olmayan \u00e7ubu\u011fu) kutuplara de\u011fdirilir. D\u00fc\u015f\u00fck potansiyel de\u011feri veren kutup borudan veya tanktan gelen&nbsp; kablonun ba\u011fl\u0131 oldu\u011fu kutuptur.Bu de\u011fer&nbsp;<strong>(450-550 mV)<\/strong>.&nbsp;aras\u0131nda de\u011fi\u015fir.<\/p>\n\n\n\n<p><strong>4.\u00d6L\u00c7\u00dcM (Anottan \u00c7ekilen Ak\u0131m) :&nbsp;<\/strong><\/p>\n\n\n\n<p>\u00d6l\u00e7\u00fc kutusunda bulunan \u015f\u00f6nt\u00fcn s\u00f6k\u00fclm\u00fc\u015f durumunda yap\u0131l\u0131r. Avometre D.C. 100 mA. kademesine getirilir. Aletin bir ucu anotdan, di\u011fer ucu tankdan (katod) gelen kablonun ba\u011fl\u0131 oldu\u011fu \u015f\u00f6ntlere de\u011fdirilerek anotdan \u00e7ekilen ak\u0131m okunur. Bu de\u011fer&nbsp;<strong>(10-100 mA)<\/strong>&nbsp;aras\u0131nda de\u011fi\u015fir. Tank(katod) ak\u0131m yo\u011funlu\u011fu y\u00f6n\u00fcnden bo\u015f iken bu de\u011fer b\u00fcy\u00fck, Tank(katod)ak\u0131m y\u00f6n\u00fcnden doydu\u011fu zaman bu de\u011fer d\u00fc\u015f\u00fck okunur.<\/p>\n\n\n\n<p><strong>SONU\u00c7<\/strong><\/p>\n\n\n\n<p><strong>Sistem(Katod ve Anot birbirine ba\u011fl\u0131) -zemin(toprak) potansiyeli :<\/strong>&nbsp;850 mV\u2019 un alt\u0131nda olmamal\u0131, e\u011fer alt\u0131nda ise tesisat g\u00f6zden ge\u00e7irilerek gerekli d\u00fczeltici \u00f6nlemler al\u0131nmal\u0131d\u0131r.<\/p>\n\n\n\n<p><strong>Anot-zemin<a>(toprak)&nbsp;<\/a>potansiyeli :<\/strong>&nbsp;1100-1700 mV aras\u0131nda olmal\u0131, 1100 mV\u2019 un alt\u0131nda olmamal\u0131d\u0131r. E\u011fer 1100 mV\u2019 un alt\u0131nda ise, tanka zarar vermeden \u00f6mr\u00fc biten anotlar\u0131n de\u011fi\u015ftirilmesi gereklidir.<\/p>\n\n\n\n<p><strong>Tank(Katod)-zemin(toprak) potansiyeli :<\/strong>&nbsp;450-550 mV aras\u0131nda olmal\u0131d\u0131r. 450 mV\u2019 un alt\u0131nda ise, tankta korozyon ba\u015flam\u0131\u015f demektir. Bu durumda anot say\u0131s\u0131 %50 oran\u0131nda art\u0131r\u0131lmal\u0131 ve tekrar \u00f6l\u00e7\u00fcm yap\u0131lmal\u0131d\u0131r.<\/p>\n\n\n\n<p><strong>Anot-Katod (tank) ak\u0131m\u0131 :<\/strong>&nbsp;10-100 mA aras\u0131nda olmal\u0131d\u0131r. \u015e\u00f6nt a\u00e7\u0131k iken yap\u0131l\u0131r. De\u011fer 0 okunuyorsa kapal\u0131 devreyi te\u015fkil eden ak\u0131m yolu veya kablolarda kopukluk vard\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Korunacak metali olu\u015fturulacak bir elektrokimyasal h\u00fccrenin katodu haline getirerek metal y\u00fczeyindeki anodik ak\u0131mlar\u0131n giderilmesi i\u015flemidir. Korozyon olay\u0131 bu iki reaksiyonun bir arada y\u00fcr\u00fcmesi ile ger\u00e7ekle\u015fir&#8230;.<\/p>\n","protected":false},"author":1,"featured_media":82,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-81","page","type-page","status-publish","has-post-thumbnail","hentry"],"_links":{"self":[{"href":"https:\/\/www.misirliogullari.com\/index.php\/wp-json\/wp\/v2\/pages\/81"}],"collection":[{"href":"https:\/\/www.misirliogullari.com\/index.php\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.misirliogullari.com\/index.php\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.misirliogullari.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.misirliogullari.com\/index.php\/wp-json\/wp\/v2\/comments?post=81"}],"version-history":[{"count":1,"href":"https:\/\/www.misirliogullari.com\/index.php\/wp-json\/wp\/v2\/pages\/81\/revisions"}],"predecessor-version":[{"id":83,"href":"https:\/\/www.misirliogullari.com\/index.php\/wp-json\/wp\/v2\/pages\/81\/revisions\/83"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.misirliogullari.com\/index.php\/wp-json\/wp\/v2\/media\/82"}],"wp:attachment":[{"href":"https:\/\/www.misirliogullari.com\/index.php\/wp-json\/wp\/v2\/media?parent=81"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}