Boiler Mounting and Accessories


List of boiler Mounting and their functions

Name of ComponentFunction in boiler operation
Safety valves
To permit the steam in the boiler to escape to atmosphere when pressure in the steam space exceeds a certain specified limit.
Water level indicators To ascertain constantly and exactly the level of water in the boiler shell.
Pressure gaugeTo record the pressure at which the steam is generated in the boiler.
Steam stop valveTo shut off or regulate the flow of steam from the boiler to the steam pipe or from the steam pipe to the engine
Feed check valvei) To allow the feed water to pass into the boiler.
ii) To prevent the back flow of water from the boiler in the event of the failure of the feed pump.
Fusible plugTo extinguish fire in the event of water level in the boiler shell falling below a certain specified limit.
Blow-off cockTo drain out the water from the boiler for internal cleaning, inspection or other purposes.
Man and mud holesTo allow men to enter inside the boiler for inspection and repair.

List of boiler Accessories and their functions

Name of ComponentFunction in boiler operation
Air preheaterWaste heat recovery device in which the air to on its way to the furnace is heated utilizing the heat of exhaust gases
EconomizerTo recover some of the heat being carried over by exhaust gases (This heat is used to raise the temperature of feedwater supplied to the boiler)
Steam superheaterTo superheat the steam generated by boiler
Feed pumpTo raise the pressure of water and force it into the boiler
InjectorTo feed water in vertical and locomotive boilers
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