Method for monitoring and detecting damage to steel pipelines

Abstract

A method for monitoring and detecting damage to steel pipelines subjected to mechanical load caused by vehicle traffic load or by pressure changes in the medium transported through the pipeline, in which acoustic emission sensors are used together with a cable outlet, characterized in that membrane piezoelectric acoustic emission sensors and string sensors of longitudinal stresses are used together on the monitored pipeline section, which are installed on the tested pipeline depending on the type of medium flowing through the pipeline, pipeline insulation, background noise and steel grade, wherein the measurement system includes a microcomputer module for filtering and analyzing the recorded signals and a module for transmitting parameters of the physical state of the pipeline connecting the monitoring device with the receiving system in the body supervising the operation of the pipeline, wherein the string sensors are mounted linearly on the circumference of the pipeline at an offset of 120°

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