Fault detecting apparatus, gas turbine, and method of detecting fault
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United States of America Patent
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Aug 10, 2021
Grant Date -
Sep 19, 2019
app pub date -
Jan 7, 2019
filing date -
Mar 14, 2018
priority date (Note) -
In Force
status (Latency Note)
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Abstract
An apparatus externally detects the presence of a fault or malfunction in a gas turbine using the sound of air passing through vanes. The apparatus includes a sound sensor configured to sense a sound; a signal converter configured to convert the sensed sound into a digital signal; a data processor configured to perform a sound quality evaluation by analyzing a sound quality of the digital signal; and a display configured to display a result of the sound quality evaluation. The gas turbine includes a compressor housed in a compressor casing in which an inlet guide vane (IGV) assembly and a variable guide vane (VGV) assembly are installed. The sound sensor includes a plurality of microphones are installed outside the compressor casing at positions adjacent to at least one of a vane of the IGV assembly and a vane of the VGV assembly.
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