Boiler Components

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BED COIL ASSEMBLY

Tubes are arranged with wider pitch which provides lower velocity between tubes and avoid erosion level.
Weld joints are avoided from the bed to ensure the life.
Bends are avoided from the bed to avoid erosion.
Tubes are arranged to ensure the complete immersion within the bed.
Higher thickness of 6.35 mm provides longer life

BED COIL TUBE WITH STUDS

Studded Bed coils are provided for high pressure Boiler.
Normally Studded coil are of `HAIR PIN’ type suitable for high capacity Boiler where furnace size is Bigger.
Weld joints are avoided from the bed to ensure the life.
Bends are avoided from the bed to avoid erosion.
Higher thickness of 6.35 mm provides longer life.

WATER WALL ASSEMBLY

All five sides are covered with membrane water wall and there is no refractory.
No air ingression and no refractory related maintenance in furnace.
Comparatively less refractory used in fluidized bed which facilitate bed coil maintenance and re-radiation effect for better combustion.
Additional expenditure for refractory for water wall is not applicable unlike three sides water wall (HUT TYPE) design.

DRUM

Drums are sized with sufficient steam space
Drums are provided with internals with efficient design to avoid water carry over.
Man hole doors are provided on both sides for easy maintenance.

SHELL

Fire tubes are designed with optimum flue gas velocity to avoid erosion.
Fire tubes are designed with optimum pressure drop which reduces running power consumption.
Shell is sized with sufficient steam space