Boiler Service

Boiler is a closed vessel in which water or other liquid is heated, steam or vapor is generated, steam is super-heated, or any combination thereof, under pressure or vacuum, for use external to itself, by the direct application of energy from the combustion of fuels, from electricity or nuclear energy.

The boiler is a primary part of global heating system in power plants. ”  

• The boiler system functions with the heat distribution system, heat-emitting system & control systems.
• Boiler is the main working component of thermal power plants

Types of Boiler and Classifications of Boiler:

There are following Boilers Types:

1. According to the position of water and hot gasses

• Fire Tube Boiler
• Water Tube Boiler

2. According to Axis of Shell

• Horizontal Boiler
• Vertical Boiler

3. According to the position of the boiler

• External Fired Boiler
• Internally Fired Boiler

4. According to the pressure 

• Low-Pressure Boiler
• High-Pressure Boiler

5. According to the method of circulation

• Natural Circulation Boiler
• forced Circulation Boiler

6. According to use of boilers

• Mobile Boiler
• Stationary Boiler

7. According to drums

• Single drum Boiler
• Multi drum Boiler

8. According to the nature of drought

• Forced drought Boiler
• Natural drought Boiler

9. According to furnace

• Single furnace Boiler
• Dual furnace Boiler

10. According to fuel firing

• Solid fuel-fired Boiler
• Liquid fuel-fired Boiler
• Gaseous fuel-fired Boiler

Combination Boiler System

WHRB Boiler

Boiler Fuel Types

Boiler Furnaces compatible with following types of Fuels

Boiler Solid Fuels

• Wood
• Coal
• Briquettes
• Pet Coke
• Rice Husk

Boiler Liquid Fuel

• LDO
• Furnace oil

Boiler Gaseous Fuels

• LPG
• LNG
• PNG can be used to carry out the combustion for a specific purpose.

Components of a Boiler Systems

Boiler design is made up of 3 main components–

• Feed water system
• Steam system
• Fuel system

1. Boiler Feedwater System

Water that converts into steam by steam boilers system called Feedwater & system that regulates feed water called Feedwater system.

There are two types of feedwater systems in boilers:

• Open feed System
• Closed feed system

There are two main sources of feed water:

•  Condensed steam returned from the processes
• Raw water arranged from outside the boilers plant processes ( Called: Makeup Water)

2. Boiler Steam System

Steam System is a kind of main controlling system of boilers process. Steam Systems are responsible to collect & control all generated steam in the process.

Steam systems send steam generated in the process to the point of use through pipes ( piping system). Throughout the process, steam pressure is controlled and regulated with the help of boilers system parts such as valves, steam pressure gauges, etc.

3. Boilers Fuel System

Fueling is the heart of boilers process & fuel system consists of all the necessary components and equipment to feed fuel to generate the required heat. The equipment required in the fuel system depends on the type of fuel used in the system.

Also Read: Packaged Boilers

Boiler Applications

The Boilers have a very wide application in different industries such as

• Power Sector
• Textiles
• Plywood
• Food Processing Industry
• FMCG
• Sugar Plants

Thermal Power Plants