BOILERS, PUMPS & VALVES


MICRO MODULATING BURNER By swapping to one of the latest generation of micro-modulating burners, you can improve  percent.


Traditional burners are often imprecise and not well matched with the boiler. The new style micro-modulating burners, such as our Optimo range, achieve very accurate control of low excess air levels throughout the turndown range, resulting in an excellent combustion  Furthermore, the latest burners have been designed with a very high turndown ratio, enabling the burner to adjust its output to meet the needs of the process. This avoids the costly energy losses incurred by continual stop/start cycles.


O2/CO TRIM


Variable environment conditions, such as air temperature and humidity, as well as fuel   emissions. Not enough or too much air leads to the risk of CO production. Too much air also


 variations, burner settings are usually done with air excess at 5 to 8 percent.


 incorporating O2 control and CO measurement equipment. A combined probe measures the  communicates the information to the O2 and CO transmitter, which sends a correction 4 to 20 mA signal to the BMS in order to adjust the combustion air damper position or combustion air fan inverter speed. This makes for optimal excess air, ensuring complete combustion.


CONCLUSION


Firetube boilers have been around for nearly two centuries and, as you would expect, have changed considerably since those early days. From the energy crises of the 1970s onwards, the focus of R&D has been on improving  seen a truly concerted effort to reduce energy consumption and emissions. By their very nature, Firetube boilers will remain one of the major energy consumers in any plant, but we can and must take steps to reduce that energy.


Babcock WansonLtd www.babcock-wanson.com


FACTORY&HANDLINGSOLUTIONS | DECEMBER/JANUARY 2024/25 9


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