Safety-Protection
Comprehensive safety protection functions include:
•Ignition pre-purge protection for the burner
•Overpressure protection for steam
•Four-level water level detection and interlock protection
•An independent extremely low water level probe (No. 5 probe) to prevent dry firing of the boiler
The boiler is equipped with a dustproof electrical control cabinet featuring:
•Emergency stop button
•Indicators for various operating conditions
•Fault display
•Audio and visual alarms
•Fault record
•Multiple protection functions interlocked to ensure safe operation under various conditions
High Thermal Efficiency - Energy Saving
Foster Wheeler Boiler uses a center-offset wet-back downstream combustion three-pass structure. The boiler body features a large furnace design with wide furnaces and sufficient flue tubes, effectively increasing the radiation heating surface and enhancing the thermal efficiency of the boiler.
Spiral guide vanes are installed inside the flue tubes, increasing the flue gas path length and extending the heat exchange time, thereby effectively improving thermal efficiency. The wet-back structure ensures that the rear tube plate is not directly exposed to high-temperature flue gases, significantly extending the life of the boiler.
The furnace liner is corrugated, providing good thermal expansion properties. A reasonable airflow design ensures uniform temperature distribution within the furnace and effectively absorbs the heat from the flame, inhibiting the generation of nitrogen oxides (NOx). Reliable International Brand burners ensure complete fuel combustion.
After applying energy-saving technologies, the average thermal efficiency of Foster Wheeler’s steam boiler series exceeds 98%, with flue gas outlet temperatures below 90°C.
Technology - Environmental Protection
Foster Wheeler Boiler is equipped with high-efficiency burners. Through the use of low-NOx burners and emission reduction technologies, the NOx emissions of Foster Wheeler boilers can meet environmental standards, with NOx emissions reaching below 30 mg/m³.
The large furnace design facilitates complete fuel combustion and reduces furnace thermal load, effectively lowering NOx emissions and meeting environmental requirements.
Smartness - Control
The boiler is equipped with an automated control system using a PLC programmable controller + touch screen control method. In line with the trend towards digitalization and intelligence, our company’s independently developed controller offers intuitive operation and strong expandability. Users can set the operating pressure of the boiler according to needs, and the system supports digital setting and automatic adjustment.
For water treatment, circulation pumps, and boiler feedwater pumps, manual/auto integrated switches are provided. For the burner, a switch for low/high fire is available, making maintenance easier.
With the PLC programmable controller + modules + supporting instruments, the system can be expanded to include variable frequency control, climate compensation, linkage control of multiple boilers, centralized control, and remote control.
Convenience - Design
Both the front and rear flue boxes are equipped with a pair of flue box doors, facilitating cleaning and maintenance of the flue tubes.
At the rear of the boiler, a viewing hole is provided for accurate observation of flame combustion. On top, there is a platform with guardrails and a manhole, and at the bottom, a cleaning hole is available, making maintenance and inspection operations more convenient. The boiler is equipped with both color and monochrome water level gauges to prevent misreading of water levels.
