Fire tube boiler is also referred to as smoke tube boiler or fire tube shell
boiler, which is a type of boiler in which hot gases from a fire pass
through one or (many) more tubes running through a sealed container of water.
The heat of the gases is transferred through the walls of the tubes by thermal
conduction, heating the water and ultimately creating steam.
Horizontal fire tube boiler applications
Fire tube boilers can be used in steam or hot water applications, such as
food & beverage, paper & pulp, laundry, tanneries, textile, packaging, wood,
machinery factory, metallurgical plants, infrastructure & bitumen,
plastic & rubber, chemical, pharmaceutical, power plant, district heating and
large buildings heating.
Three-pass fire tube boiler designs
Fire tube boilers are typically designed with three sets of tubes (three-pass boilers). Every set of tubes that the flue gas travels through is
considered a “pass”. A boiler with more passes has a higher heat extraction rate and is
more efficient then one with less passes. The three pass fire tube boilers are high combustion e
fficiency and energy saving.
Fire tube steam boiler advantages
1.High Combustion Efficiency, Save Your Fuel Cost
2.Wet-back Structure, Saves Big Money on Maintenance
3.Multiple Protection, Low Maintenance Cost
4.Packaged type, Easy for Transportation & Installation
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fire tube boiler




