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Intelligent Soot Blowing Application
An acoustic pyrometer provides a practical and cost-effective solution for on-line continuous gas temperature measurements within hostile furnace and boiler environments.Combustion gas temperatures inside a modern power boiler furnace can reach nearly 3000o F (1650o C), rendering conventional thermocouple and water-cooled thermal probe methods effectively useless. The acoustic pyrometer is the only instrument that can offer reliable, accurate, and repeatable measurement of high furnace gas temperatures on an automatic unattended basis.
After many years of power plant installations, we improved our temperature measuring capabilities again in 2001. We are now able to offer our temperature measuring products for use with Intelligent Soot Blower (ISB) control systems.
We have established a close alliance with Applied Synergistics, Inc., the industry leader in intelligent sootblower control. They may be reached at their Lynchburg, VA office at 434-385-6102, please ask for Mr. Randy Carter.
SEI Acoustic Pyrometers and Intelligent Soot Blowing
- The SEI Acoustic Pyrometer is used as an integral part of the Applied Synergistics Boiler Cleaning Management Systems™.
- Eliminate HTV intensive parts replacement and the high maintenance.
- Non-Intrusive rugged design: Stainless Steel Waveguides are outside the furnace wall.
- Suitable for all fuels.
- The system’s lower range is 35o F allows the system to be used for cold or warm start-ups.
- The upper temperature range is 3500o F, or nearly 2000o C.
- Linear and Accurate over the entire temperature range.
- Fault Tolerant Processor Control Unit (PCU).
- The 4-20 mA temperature output is of the path; and with two paths the average, and difference are also available. Any or all outputs easily connect to the computer system for ISB control.
- RS-232 and RS-422 for local monitoring and statistics through local PC.
- Telephone modem for remote monitoring.
- An EEPROM stores all instrument settings.
- Automatic recovery after power loss.
- Remote enable/disable input
- All SEI Software operates on Windows 95/98/2000/XP or NT operating systems, and is included with each system.
Applied Synergistics: Two screen shots from Boiler Cleaning Management Systems™ 
Click here for a larger image.
The above image also shows a temperature graph for the FEGT.
Click here for a larger image.
More about SEI
Realizing equipment failure raises energy costs, increases labor costs;
while production and profit margin decrease, our equipment is
designed and built to the highest industry standard.
Sound waves can be used to measure the temperature of a gas,
including air, using our Boilerwatch® MMP
Systems. Boilerwatch® MMP
Systems can also be used for multiple paths, contour maps, and
temperature distribution mapping. The MMP comes with the TMS-2000
software mentioned above.
For measurement of gas temperature in a boiler the distance
between the acoustic transmitter and receiver is fixed and easily
measured, and the flight time is measured by the acoustic pyrometer.
From this information, the average gas temperature across the
path is computed.
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