Mechanical Basics MECHANICAL THEORY Thermal Engineering

Boiler:Def, Selection, Classification, Essentials,Boiler Mountings & Accessories

Definition of Boiler:The equipment used for producing steam is called Boiler or Steam Generator.It is also defined as “ A closed vessel in which steam is produced from water by the combustion of fuel.”
The steam generated is used for

  • Power generation
  • Heating
  • Utilization in industries like chemical industries,sugar mills  etc.

Considering,the above factors,I had written an article on Boiler-Definition,Classification,Selection, Essentials of a good boiler,Boiler Mountings & Accessories in a detailed way.

Boiler:Definition,Classification,Good Boiler,Boiler Mountings &

Boiler Accessories:

As the definition of boiler was stated above therefore I am giving another details such as

  1. Classification of boiler
  2. Diagram of Boiler
  3. Selection of Boiler
  4. Essentials of good boiler
  5. Boiler mountings
  6. Boiler Accessories.

1.7 Classification of Bolier:

Boilers are categorised into 7 types and the list was presented below.

  1. Horizontal, Vertical or Inclined Boilers
  2. Externally and Internally Fired
  3. Forced and Natural Circulation
  4. High Pressure and Low Pressure Boilers
  5. Stationary and Portable
  6. Fire tube and water tube
  7. Single and Multi-tube Boilers

2.Diagram of Boiler:

The Boiler Diagram is shown below in the form of an image.

Boiler-Def,Classification,selection, Essentials,Boiler Mountings & Accessories
Boiler-Def,Classification,selection, Essentials,Boiler Mountings & Accessories

3.Selection of Boiler:

The selection of Boilers is based on below conditions.

  • Floor area available
  • Portable load factor
  • Erection Facilities
  • The fuel and water availability
  • Accessibility for repair and inspection
  • Comparative initial cost
  • Steam generation rate
  • Operating and maintenance cost

4.Essentials of Good Boiler:

• The boiler should produce the maximum weight of steam of required quality at minimum expenses.
• Should have an easy access to various parts of boilers for inspection and repairs.
• Installation of boiler should be simple.
• Boiler components should be such that they would be transportable from one region to another without any difficulty.
• Steam production rate should be as per requirements
• Reliable.
• It should have to occupy in a minimum space.
• Tubes should not accumulate soot and water deposits.

5.Boiler Mountings:

The Boiler Mountings are presented below.

  • Water Level Indicator
  • Blow off cock
  • Feed check valve
  • Safety Valves
  • Pressure Gauge
  • Fusible Plug

6.Boiler Accessories:

The Boiler Accessories are presented below.

  • Feed Pumps
  • Injector
  • Steam Separator
  • Steam Trap
  • Economizer
  • Air Preheater
  • Super heater

This is the complete explanation of Boiler-Definition,Classification etc. in a detailed way.If you have any doubts feel free to ask from the comment section.

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