Accumulator water heater with adjustable cathodic protection

• Main Authors: LATINI LUCIO, MANCINI ANGELO, SAMPAOLESI ROBERTO, STOPPONI ALESSANDRO
• Format: Patent
• Language: Chinese; English
• Published: 31.08.2011
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE

The present invention relates to an accumulator water heater (1) fitted with impressed current corrosion protection devices (5, 6, SC). The present invention also describes a method to regularly measure the value of the impressed current (Id) to be applied. Said accumulator water heater (1) can be additionally fitted with a cathodic protection device with sacrificing anode (4). The invention relates also to the alternative operating methods for the protection of the sacrificing anode (4) or of the impressed current, and to the methods designed to control the presence and degree of wear of said sacrificing anode (4).