Prevent unplanned shutdown from the boiler tube leakage
In the coal fired power station, it equip with large quantity of the boiler tube and the reliability requirements of them are operation critical. Once the boiler tube leaks, it will directly affect the safe and economic operation of the generator set. Therefore, the prevention of boiler tube leakage and the early detection and treatment of leakage are becoming increasingly important for power generation companies.
Especially in the CFB boiler has high abrasion to the boiler tube due to circulating of sands and volatile turbulence flow.
Solution – Automatic Boiler tube leakage early detection system
We provide the Automatic Boiler tube leakage early detection system that gives an early warning of the leakage of boiler tube upto small leaks less than 1mm.
Principle of Operation
Using the principle of acoustic monitoring, various acoustic signals are collected from the furnace and converted into current signals. The detection and alarm system analyzes the spectrum of the acoustic signal by fast Fourier transform technology (FFT) and displays it in the form of a bar graph. The analysis of noise intensity, spectral characteristics and duration determines whether the boiler tube leaks.
Advanced leakage monitoring system features the precise location monitoring, self diagnostic, long term trending and alarm features.
Soundguide tube install along the boiler wall and Acoustic sound sensor pickup the sound around the boiler. typically 20-30 sensors are installed for one system, depends the site of the boiler.
Typically specification of sensor.
Screenshot of tube leakage monitoring graphic:
Fig: Leakage condition and each channel acoustic sound intensity
Fig: Overview of Boiler Tube Leakage Condition
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