CATHODIC CORROSION-PREVENTING SYSTEM AND CATHODIC CORROSION-PREVENTING METHOD USING GALVANIC ANODE SYSTEM, AND DEVICE FOR STABILIZING ELECTRIC CURRENT GENERATED BY GALVANIC ANODE

摘要

PROBLEM TO BE SOLVED: To provide a cathodic corrosion-preventing system which can stably generate a necessary corrosion-preventing electric current while corresponding to changes of various situations after the galvanic anode has been installed, accurately predicts the remaining life of the galvanic anode, thereby can appropriately control the installed galvanic anode, and can appropriately blocks an electric current flowing into the galvanic anode from an electrolyte, when cathodically preventing the corrosion of an object to be corrosion-prevented in the electrolyte with a galvanic anode system.;SOLUTION: The cathodic corrosion-preventing system for cathodically preventing the corrosion of the object to be corrosion-prevented in the electrolyte with the galvanic anode system has a constant-current control means 1 that is connected to electric wires L1 and L2 so as to be interposed in between them, which connect the object to be corrosion-prevented (pipeline (P)) with the galvanic anode (A), and constantly controls the electric current generated from the galvanic anode (A) to a set electric current value.;COPYRIGHT: (C)2009,JPO&INPIT