Instantaneous gas temperature data from any area of the boiler.
The PyroMetrix acoustic pyrometer is a non-contact measurement device that obtains accurate instantaneous gas temperature data from any location within a boiler. The PyroMetrix system helps boiler operators reduce slagging significantly by maintaining optimal furnace exit gas temperatures. It also helps manage the critical temperature profiles that aid emission reduction and reduce tube damage by preventing hot spots and thermal shock. Using PyroMetrix to balance combustion can also improve heat transfer rates.
How PyroMetrix works
The system utilises the principle that the velocity of sound through a medium is related to the temperature of the medium. PyroMetrix generates a sound wave with a very sharp rise time and measures the time it takes to traverse the chamber. If the distance between the sound source and the receiver is known, then the average temperature between the two points can be determined. Instantaneous temperature data is spatially averaged to provide zoned temperature maps.
Advantages
Accuracy: The system provides instantaneous, spatially averaged temperatures with less than 1% error.
Reliability: The system is designed for superior reliability in hot, dirty environments. Ports are cleared by periodic air blasts, and components are not sensitive to dust or dirt.
Flexibility: The system can be configured to suit monitoring needs. ASGs or ASRs can be added as desired. Boiler tube bends are not required to mount the receivers.
Leak detection capability: The system constantly listens to boiler noises, measuring against preset noise thresholds and time durations to identify persistent sounds indicative of tube leaks.
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