A water tube boiler is such kind of boiler where the water is heated inside tubes and the hot gasses surround them.
Water tube boiler diagram pdf.
They are easy to maintain as they are externally fired.
The maintenance of this boiler is costly.
We briefly discuss about water tube boiler parts and functions.
What is a water tube boiler.
Cornish boiler lancashire boiler.
Whenever the fuel is burned then hot gases will be generated that are permitted to supply in the shell part of the boiler.
Some example of fire tube boiler are.
A boiler is a closed vessel in which steams are generated water to steam with the help of coal burning or other fuel substances.
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.
The efficiency of the water tube boiler is more.
These types of boilers have quicker response to load changes.
Water tube boilers were developed for a variety of reasons including the need for higher steam pressures higher steam generation rate superheated steam.
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.
Babcock and wilcox boiler.
Actually this boiler is just opposite of fire tube boiler where hot gasses are passed through tubes which are surrounded by water.
The fire tube boiler is the boiler in which fire hot flue gases is inside the tube and water is surrounded by them.
The water tube boiler diagram is shown below and these two drums are associated via two tubes such as downcomer and riser.
The efficiency of the fire tube boiler is less as compared to the water tube boiler.
Basically there are two types of boiler.
Advantages of water tube boiler.
It requires regular inspection.