The invention discloses a
steam turbine safety monitoring protection method and
system, and relates to the technical field of
steam turbine safety monitoring protection, and the method comprises the steps: S1, a TSI sensor of each measurement
signal of a current TSI
system collects a TSI measurement
signal, and an audio sensor beside the TSI sensor collects an
audio signal; the collected TSI measurement signals and audio signals are sent to the
data processing and logic judgment module; s2, the
data processing and logical judgment module performs
spectral analysis on the audio signals, then performs linkage cooperation with TSI measurement signals, judges whether the positions of all the parts have potential safety hazards or not in advance when the
steam turbine bearing operates in a
data modeling mode before all
signal thresholds of a current TSI
system are not triggered, and if yes, judges whether the positions of all the parts have potential safety hazards or not; and if the potential safety
hazard exists, indexing to a specific potential
hazard position according to the logic instruction. According to the invention, a set of audio monitoring and
early warning system is arranged and is linked and matched with the current TSI system, so that the
safety monitoring and protection performance of the steam
turbine is further improved, and the operation efficiency and economical efficiency of a unit are improved.