Acoustic steam leak detection for your Heat Recovery Steam Generator (HRSG)
The Greenbank LA 202 Acoustic Leak Detection System is the longest standing system of its type available. Since 1974 there have been over three-hundred systems installed worldwide. The modular, expandable system has been designed to meet virtually every application requirement for performance and economy. 
Research has proven that true acoustic measurement of sound level in a confined space is more accurate through a wider band width than indirect piezo measurement. However, to provide the ultimate system flexibility, Greenbank can provide either airborne or structure borne sensors as the application requires.
Damage to steam and water piping systems by corrosion, thermal-mechanical fatigue, or slagging have long affected conventional coal-fired boilers. HRSG designs can be affected by some of these issues as well, causing unscheduled outages and lost revenue.
A well-designed acoustic leak detection system enables operators to continually monitor and trend real-time performance of various systems in the unit and provide early detection of a potential problem. Strategically placed sensors enable operators to safely determine the location of a leak or malfunction and schedule required maintenance based on severity. The modularity of the LA202 system allows for additional points to be added at any time with minimal cost and effort.
Typical Applications:
- Boiler Tubes
- Superheater / Reheater
- Main Headers
- Waterwalls
- Attemperators
- Isolation Valves / Relief Valves
- Pipeline Flow / No Flow