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Monitoring and Diagnosis System

Boiler Tube Leakage Monitoring System

  • - To simultaneous monitoring for crack signal of low frequency
      and high frequency
  • - To provide for analysis method of various acoustic emission
      signal
  • - To view for condition of leak detection on real time and to have
      for function of alarm
  • - To provide for boiler tube by visualized 3D(SH, RH, ECO)
  • - To support for facility control by distinction algorithm of leak and
      defect
  • - If occurred leak, to provided for boiler tube of indicating location
      by 3D
  • - Adapted file management system for process large storage data.
  • - To apply to file control system for disposing large capacity data
  • - To support to trend and report by daily, weekly, monthly

Products Information

Boiler Tube Leak Detection Systemis performed for occurred tube leak and crack for superheater, reheater, coal cutter, water cooled wall on main boiler of thermal power plant. This system have in accordance with acoustic emission inspection in one method of non-destructive test during operating for power plant on real time monitoring. And leak location have provided by 3D and then, it is possible to shorten for maintenance time and increase maximum efficiency for electric operating alike. This system is possible to get early occurred leak time and detect for leak than existing system. It have advantage quickly maintenance by provided point of 3D of leak position.

Feature and composition

Block Diagram
Software display

BTLD Server

  BTLD-Server is monitoring inside boiler tube leakage and crack condition, with saved data and monitoring situation composes the environment BTLD-Client will be able to access. The main functions are as follows. Support monitoring status and network environment through LAN.


- Support input certain value and certain period of condition trend for monitoring leakage and crack.
  ■ Monitoring condition : 3D, Bar, RMS trend.
  ■ Analysis condition : AE Trend, RMS trend, Time, Frequency analysist
- 3D Source Location
- 3D Source Location

BTLD Client

 BTLD Client monitor the status of BTLD-Server, analyze saved data, confirm the structure health of boiler tube, and finally find the damaged location by using 3D source location algorithm. The main functions are as follows.


- Support various monitoring and analysis condition
  ■ Monitoring condition : 3D, Bar, RMS trend.
  ■ Analysis condition : AE Trend, RMS trend, Time, Frequency analysis
- 3D Source Location
- Support file export and reporting

Main facility specification
ItemContent
SensorRequired voltage 12~24V
SensitivityHigh frequency range: 63±3 dB
Low frequency rang: 100mV/g
Frequency rangeHigh frequency range: 50K~200kHz
Low frequency range: ~20kHz
Pre-amplifier Gain rate20/40dB
Filter1kHz~20kHz, 50k~200kHz
Input voltage range±10 V
Input type Single
Main-amplifier Gain rate0/20/40 dB
Filter1kHz~20kHz, 50k~200kHz
Input voltage range±10 V
Analysis listRMS
Data acquisition deviceSampling frequency2.5MHz
Sensitivity> 68.8uV
Internal memory64MB
TriggerAnalog and Digital