Soundness evaluation apparatus of the subject pipeline corrosion protection, soundness remote evaluation system, soundness evaluation method, soundness evaluation program

摘要

PROBLEM TO BE SOLVED: To get an omen of jeopardizing soundness of an anticorrosion-objective pipeline, in an early stage, based on a change of an operation state in a cathodic anticorrosion facility.;SOLUTION: This soundness evaluation device 30 for the anticorrosion-objective pipeline for evaluating the soundness of the anticorrosion-objective pipeline by getting situations of proper operations in the plurality of cathodic anticorrosion facilities installed in the anticorrosion-objective pipeline is provided with an output value acquiring means 32A for acquiring time-serially an output voltage value and an output current value from the cathodic anticorrosion facility, a circuit resistance value computing means 32B for finding time-serially a circuit resistance value that is a value provided by dividing the acquired output voltage value with the output current value at the same timing, and an anticorrosion facility renewal judging means 32C for judging the necessity of renewal of the cathodic anticorrosion facility, based on a long term change tendency of the circuit resistance value.;COPYRIGHT: (C)2007,JPO&INPIT