What is Boiler how the steam is generated in boiler?

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How Does Steam Boiler Work?

What is Boiler?

A steam boiler is a heat exchange system. Inside boiler vessel water is heated to its boiling point to generate steam via combustion of fuel. This generated steam flows through internal pipe systems to the equipment that is being heated, whether it be hot water coils in air handling units, or other water heating equipment. Steam produced from steam boilers is often used in applications such as comfort heating ( in Hotels), maintaining industrial process temperatures( manufacturing firms and textile industry), and many other applications( dairy businesses).

​Steam Boiler Working

Boilers use pumps to propel heated water through pipes to radiators.Steam boilers use heat to convert water into steam for a variety of applications. Through a combustion reaction between fuel and air, which ignites a flame into tubes that is then transferred from the tube to the water in which the tubes are submerged.


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After the heat from that steam is taken and transferred into the process needing heat, the steam condenses back into water as condensate. This can be collected and returned to the boiler to be used through a condensate return line. This saves the amount of needed make-up water, as well as needed chemicals since the condensate has evaporated away dissolved solids.

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Application of boiler

In order to maintain an efficiently operating boiler, proper chemical water treatment is important. This is because of the naturally dissolved solids that exist in the make-up water, which can cause scale or corrosion.


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