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Tag Archive fire tube type boilers for sale

fire tube type boilers

fire tube type boilers introduction 
A fire-tube boiler 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. Fire tube boilers are simple in construction and are mostly used for low pressure applications. There are many variants of fire tube boilers such as vertical boiler, Locomotive boiler, Cornish boiler, Lancashire boiler, Cochran boiler e.t.c. with different construction features.

Fire tube type boilers are typically designed with either three or four sets of tubes (three- or four-pass boilers). Every set of tubes that the flue gas travels through is considered a “pass”.  Fire tube type boilers designed for three-passes have the stack at the rear, and boilers designed for four-passes have the stack at the front. A boiler with more passes has a higher heat extraction rate and is more efficient then one with less passes.
Advantages of Fire Tube type Boilers
1.Compact in construction.
2.Fluctuation of steam demand can be met easily.
3.Cheaper than water tube boiler.
4.Easy to clean
5.Available in sizes from 1 ton/hr to 20 ton/hr
6.Easy to replace tubes
7.Well suited for space heating and industrial process applications
8.Fire tube boilers are more fuel efficient and easier to operate
9.Fire tube boiler requires less skill for efficient and economic working.

Fire tube type boilers application
Fire tube type boilers can be used in steam or hot water applications, such as food; beverage, paper; cardboard, laundry, tanneries, textile, packaging, wood, machinery factory, metallurgical plants, infrastructure & bitumen, plastic & rubber, chemical, pharmaceutical, power plant, district heating and large buildings heating.

fire tube type boilers

fire tube type boilers

Operation of fire tube type boilers is as simple as its construction. In fire tube boiler, the fuel is burnt inside a furnace. The hot gases produced in the furnace then passes through the fire tubes. The fire tubes are immersed in water inside the main vessel of the boiler. As the hot gases are passed through these tubes, the heat energy of the gasses is transferred to the water surrounds them. As a result steam is generated in the water and naturally comes up and is stored upon the water in the same vessel of fire tube boiler.

According to the location of furnace there are two  fire tube type boilers and these are external furnace and internal furnace type. There are mainly three external furnace fire tube type boilers.

Horizontal return tubular fire tube boiler.
Short fire box fire tube boiler.
Compact fire tube boiler.

There are also two types of internal furnace fire tube boiler

Horizontal tubular.
Vertical tubular fire tube boiler.

Fire Tube Type Boilers Suppliers
Sitong boiler Fire Tube type Boilers is more and more popular every year. Due to their low cost, high efficiency and energy saving, more than 10,000 Fire Tube type Boilers are installed worldwide. Our  fire tube type boilers is three-pass wet-back structure, offering our clients tailor-designed heat and power solution. Every year, sitong offers fire tube type boilers… to Vietnam, Indonesia, UAE, India, South Africa, Kazakstan, Mexico, Zimbabwe, Philippines, Pakistan, Chile, Iran, Egypt, Kenya, Turkey, etc. Our boilers with ASME, ISO certifications provide steam and hot water needs both energy and cost efficient.