Water Tube Boiler

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.
Water tube boiler. Design with a 100 membrane water cooled furnace this boiler system includes high efficiency boiler and burner heat recovery economizer and advanced control system. One of the latest advances in steam production technology is the use of water tube boilers. This type of boiler is distinct from conventional boilers that use a fire tube system. There are many advantages of water tube boiler due to which.
How a water tube boiler works. The furnace or radiant section. Water tube boilers are more efficient than fire tube boilers generating more steam but using less fuel. What is a water tube boiler.
Whenever the fuel is burned then hot gases will be generated that are permitted to supply in the shell part of the boiler. This is an open area accommodating the flame s from the burner s. Actually this boiler is just opposite of fire tube boiler where hot gasses are passed through tubes which are surrounded by water. This is the basic definition of water tube boiler.
The water tube boiler diagram is shown below and these two drums are associated via two tubes such as downcomer and riser. The water tube boiler is those boiler in which the water is present inside the tubes and fire or hot gases surround these fire tubes. Water tube boilers were developed for a variety of reasons including the need for higher steam pressures higher steam generation rate superheated steam. We briefly discuss about water tube boiler parts and functions.
The examples of water tube boilers are a la mont benson stirling babcock and wilcox yarrow and loeffler boiler. The cbcw is the newest member of the cleaver brooks industrial watertube boiler family. If the flames were allowed to come into contact with the boiler tubes serious erosion and finally tube failure would. A water tube boiler is such kind of boiler where the water is heated inside tubes and the hot gasses surround them.
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. Advantages of water tube boiler. 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.
The energy from the heat source may be extracted as either radiant or convection and conduction.