SEI Spain Acoustic Pyrometer
SEI Spain Acoustic Pyrometer
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Applications \\ Power Plant \\ Soot Blower Contro
Applications \\ Power Plant
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Applications \\ Refinery
Applications \\ Power Plant

Boiler efficiency depends on good heat transfer rates. The transfer rate is improved by blowing gas on heat transfer surfaces to remove the combustion buildup (soot blowing). It has been found that soot blowing losses can vary a great deal depending on the operator and type of coal burned.

Gas temperature measurements can be used as a direct indication of soot buildup, by installing the BOILERWATCH MMP-II-SSX.

Soot Blower Control
Noise / Leak Detection

The microphone that is located in the waveguide can hear the normal noise of the boiler / furnace continuously and displays a graphical trend for 24 hours a day, 365 days a year.


The noise detection system allows you to view any  abnormalities in the chart outside the normal acoustic parameters of the boiler / furnace and tube rupture process, soot blowers, etc.

Startup temperature control

Monitor flue gas temperature from 32ºF to 3500 F (0ºC to 1927 C) for boiler startup preventing overfiring that could damage superheat tubes, or underfiring that could potentially send wet steam to the steam turbine damaging buckets.

Single Path at Superheater

An accurate control of superheat temperature is important for efficient power plant operation.


Monitor maximum allowable temperature in the boiler superheat / reheat section for ash fusion alarm point annuciation.


FEGT should be maintained below the ash fusion temperatureto minimize the slagging and fouling. Operating FEGT above the design value can alter the design condition and cause long-term overheating of the convective pass pressure components. If

FEGT exceeds the desired value, the operator can exerciseother options to reduce it.

Combustion Performance

When combustion is improved within the furnace, the boiler can operate at reduced excess O2 and reduced FEGT levels while also reducing localized hot spots, corrosive gas conditions, slag formation, and carbon-in-ash.


The result of these operational improvements is reduced NOx emissions, increased efficiency, reduced local slagging and corrosion, and improved carbon-in-ash.

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Air Register Control

The operator close the burnes air register of the first burner line. The cold air was creaing a bad combustion and after 45 minutes the heat distribution was at the center.