A water tube boiler is such kind of boiler where the water is heated inside tubes and the hot gasses surround them. This is the basic definition of water tube boiler. Actually this boiler is just opposite of fire tube boiler where hot gasses are passed through tubes which are surrounded b
We briefly discuss about Water tube boiler parts and functions. D type water tube boiler. In the water tube boiler, the water and steam flow inside the tubes and the hot gases flow over the outside surfaces. Where as in fire tube boilers hot gases from combustion travels through the tubes. flue gases produced from furnace where fuel is burnt.
Water tube boiler working and function 1. Water Tube Boilers In this type of boiler water passes through the tubes while the gases remain in the shell side, passing over the tube surfaces • Used for high steam demand and pressure requirements • Capacity range of 4,000 - 120,000 kg/hour 2. Water tube boilers 3.
The main classification of boilers is in two categories i.e. water tube boilers and fire tube boilers. Fire tube boilers are useful for small demands of steam and water tube boilers are useful for industrial level usage.
A horizontal steam and water drum: this is the main part of the boiler. It is supported by a steel structure at a certain height and is independent of brickworks. The size of the boiler drum is small as compared with the boiler drum of a fire-tube boiler of the same capacity. It has water and steam.
These small internal parts produce high volume steam for high capacity applications. Water tube boilers are the most widely used boilers. These type has replaced many boilers, including the fire tube type, mainly because of the following reasons : The weight of the water tube boiler is much less than any type of boiler of equivalent size.
Boilers are part of a hydronic heating system. Hydronic systems use water to transfer heat to a distribution source, like a radiator, to heat a home. Hydronic systems can heat via hot water or steam, depending on the type of boiler used. The boiler is the part of the system that heats the water to be distributed.
The main feature of the boiler is that the furnace of the boiler is surrounded by water and therefore there is no requirement of refractory material. It is a single phase pass boiler, which means that the hot gases pass just through the horizontal tube stack before going to the exhaust.
The main components of steam boiler are as follows 1. Inlet air duct 2. Combustion burners 3. Forced draught fan 4. Boiler furnace 5. Tube,economiser,air preheter,superheater 6. Boiler drum 7. Blowdown tank 8. Flare stack