fires in water tube boilers

5/22/2015 · Water wall and screen tube headers were subsequently found to be blocked solid with plugs of steel which had formed when the molten boiler tubes and run back into their holes. In the foregoing incidents with water tube boilers the source of heat responsible for the overheating has been the boiler burners.

2. FEATURES OF FIRE-TUBE BOILERS The fire-tube boilers are potentially dangerous as the steam pressures are high and volume of hot water and steam content is large. * water surrounds the tubes through which hot combustion gases pass before venting to atmosphere through gas uptakes.

What is a Fire tube boiler? The universal type of steam boilers is the smoke tube or fire tube boiler where the heat and gases of combustion (from furnace) pass through tubes that are enclosed by water. While in water tube boilers, water passes through tubes.Mostly used boiler in small and medium industries with different fuels and steam pressure requirements.

In water tube boilers, water flows inside the tubes and heat surrounds these tubes. The pressure generated in water tube boilers is higher than the pressure generated in smoke tube boilers. Both the boilers are shell and tube type. Fire or smoke tube boilers have hot gases inside the tube, while water tube boilers have water inside the tube and

Water tube boilers are the most common type of Exhaust Gas Boiler (EGB) used on ships. The water passes through the tube stack in water tube type of arrangement. The tube stack is arranged in the path of exhaust gas inside the exhaust gas trunking of the main engine. The exhaust gas flows over the tube stacks and heats the water, thus producing

A high pressure watertube boiler (also spelled water-tube and water tube) is a type of boiler in which water circulates in tubes heated externally by the fire. Fuel is burned inside the furnace, creating hot gas which heats water in the steam-generating tubes.In smaller boilers, additional generating tubes are separate in the furnace, while larger utility boilers rely on the water-filled tubes

2. Water tube boilers 1. Fire tube boilers : Fire-tube boiler is a type of boiler in which hot gases from a fire pass through one or more tubes running through a sealed container of water. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the …

The boiler vessel in each of these systems is a two pass hybrid design incorporating a water tubed boiler-type water membrane and a two-pass fire tube scotch marine vessel. These boilers advantages over standard water tube boilers include a much larger steam disengagement area providing high quality steam, larger steam storage capability for

9/21/2012 · 3. Water tube boilers - advantages over tank type boilers, components & functions of water tube boilers, headers, down comers, risers, water walls, screen tubes, superheaters, economizers, air economizers, brief description & operation of Babcock Wilcox, Yarrow, Foster Wheeler D type, Foster Wheeler ESD type, Aalborg water tube boilers.

A fire-tube boiler is a type of boiler in which hot gases pass from a fire through one or (many) more tubes running through a sealed container of water. The heat of the gases is transferred through the walls of the tubes by thermal conduction, heating the water and ultimately creating steam.. The fire-tube boiler developed as the third of the four major historical types of boilers: low