![]() A continuous circulation of water from the drum to the water tubes and water tubes to the drum is thus maintained. The water from the drum comes down through the down –comer into the water tubes. Steam being lighter is collected in the upper part of the drum. Here the steam and water are separated in the drum. Water, its density being decreased, rises into the drum through the uptake-header. Water circulation: That portion of water tubes which is just above the furnace is heated comparatively at a higher temperature than the rest of it. ![]() The flue gases finally escape to atmosphere through chimney. The baffles deflect the flue gases and hence the flue gases travel in the zig-zag manner (i.e., the hot gases are deflected by the baffles to move in the upward direction, then downward and again in the upward direction) over the water tubes and along the superheater. Flow of flue gases: The hot flue gases rise upward and pass across the left-side portion of the water tubes. ![]() Working Babcock and Wilcox Boiler: Coal is fed to the grate through the fire door and is burnt. Inspection doors: Inspection doors are provided for cleaning and inspection of the boiler. The mud or sediments in the water are collected in the mud box and it is blown-off time to time by means of a blow –off cock. ![]() Superheater: The boiler is fitted with a superheater tube which is placed just under the drum and above the water tubes Mud box: Mud box is provided at the bottom end of the down comer. Furnace: Furnace is kept below the uptake-header.īaffles: The fire-brick baffles, two in number, are provided to deflect the hot flue gases. Grate: Coal is fed to the grate through the fire door. Uptake-header and down-corner (or downtake-header) The drum is connected at one end to the uptake-header by short tubes and at the other end to the down-corner by long tubes. These tubes are connected to the uptake-header and the down-comer as shown. Water tubes: Water tubes are placed between the drum and furnace in an inclined position (at an angle of 10 to 15 degree) to promote water circulation. It is about 8 meters in length and 2 meter in diameter. ![]() Damper Steam and water drum (boiler shell): One half of the drum which is horizontal is filled up with water and steam remains on the other half.The Babcock and Wilcox Boiler consists of Presentations online, safely and virus-free! Many are downloadable. Babcock and Wilcox boiler is a natural circulation, externally fired medium pressure, stationary horizontal water. Today we will learn about Babcock and Wilcox boiler. The Video content is a copyright of Dragonfly Masterclass. This video explains the complete construction and working of a Babcox and Wilcox Boiler Boiler. ![]()
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