Improved boiler performance and optimization with the INFRA-VIEW® boiler thermometer by fireside parameter monitoring and control - furnace exit gas temperature (FEGT) monitoring & furnace bed temperature monitoring.
Infra-View® Infrared Boiler Thermometer is a patented, remote sensing infrared detector, supplied with a rugged protective-cooling jacket that can be permanently flange mounted on any port, door or penetration into the boiler or furnace.
In a typical fossil power plant, there is lack of furnace flue gas (where combustion takes place) temperature monitoring.
There is a simple logic to converting from a two point control, burner and boiler exit temperature, to a three point control; i.e., burner, furnace exit gas temperature (FEGT), then boiler exit temperature. This extra control point, FEGT, can have a major impact on boiler performance and reliability.
Basically, the furnace exit point separates the radiation zone from the convection pass. As such, FEGT control is a critical parameter which can be used to preserve the boiler operation and performance including, emission, reliability, and safety.
If FEGT deviates from the design value the following undesired condition can occur:
Current Situation - in-effective measurement
Modeling. For many years the utility industry has been actively involved in developing more accurate instrumentation, analysis methods, and performance improvement techniques for the fire side parameters control.
Traditional T/C probes or mechanical moving T/C probes: A furnace startup probe is sometimes used to protect the superheater and reheater tubes prior to the establishment of steam flow. Unfortunately, the T/C weld tends to giveway after expose on high temperature operation and also the mechanical moving T/C probe need high maintenace.
Direct infrared temperature measurement of the exit gas temperature gives the accurate, and reliable, hassle free measurement, over any other techniques such as thermocouple, acoustical detection, or thermal modeling.
Infra-View® can optimize your boiler by monitoring flue gas temperatures for: Startup, Sootblower and Slag Control; Low NOx; Fire Ball Centering; FEGT Monitoring.