加速度センサを用いた蒸気チューブリーク検出手法の開発
概要
A steam tube-leak is a very critical issue in industrial plants because the steam jet from the damaged point immediately causes damage to the surrounding tubes. Therefore, an early detection of the tube leak is important to reduce the maintenance cost and the outage time. In this study, we conducted a detection test of the steam tube leak using acceleration sensors; they are expected to catch a radial tube-vibration induced by acoustic propagation. Through the test, we found that the sensor detected a radial tube-vibration induced by the steam leaking from a 1mm-hole with 67.2m-distance. Moreover, localization method of the tube leak was examined calculating cross-correlation of two time-series data.
