| 摘要 |
PURPOSE:To monitor the abnormality of a tube leak monitor and to detect the abnormality of each soot blower, by detecting the noise signal when a plurality of soot blowers are normal and the noise signal at the time of judgement to compare both of them. CONSTITUTION:When each soot blower is normally operated, each soot blower is operated by a tube leak monitor 1 and the signal sound thereof is stored in a reference noise signal memory means 3 as a reference noise signal along with the data specifying the operated soot blower from a soot blower control apparatus 2. Next, the signal from each soot blower at the time of judge operation is measured as a judge noise signal at every soot blower in the same way as the case of a reference noise signal, and the reference noise signal is compared with the judge noise signal at every soot blower by a comparing means 4 and, from the comparing result, an abnormal soot blower is judged by a judge means 5. Further, when all of the soot blowers show the same abnormal value as the comparing result, the abnormality of the monitor 1 is judged by the judge means 5 and, on the basis of the same abnormal value, a sensitivity characteristic correction means 6 corrects the sensitivity of the monitor 1. |
