How Many Types Of Boilers Are There

2016-05-13

How Many Types Of Boilers Are There

Boilers are the widely used equipment in industries and our life. Here, i will talk about the industrial use boiler, not the boilers for cooking or household. Industrial boilers are usually in a large scale, which can supply large quantity of steam or hot water for industries or small enterprise for production use or central heating. We can classify types of industrial boilers according to the different fuel, design, structure, combustion style, and so on.

Steam boiler and hot water boiler

Boilers can be classified into steam boiler and hot water heating boiler according to use. Hot water boilers are widely used to provide hot water for washing, heating in cold day and some other cases. Steam boilers will be used for steam production such as chemical industry, textile mill, food factory, beverage industry, and others.

Water tube boiler and fire tube boiler

Water tube boilers are that in which water circulates in tubes and fuel is burned inside the furnace. Fire tube boilers pass the heat through tubes that run through a water-filled drum, which transfers heat from the gases to the water to generate steam.

Different combustion style

Traveling grate type, cfb type, wns type are the main combustion style for boilers. Chain grate type boiler refers to the fuel burning on a chain grate, the fuel can bu burnt fully by adjusting the speed of chain grate to a suitable value. The advanced cfb(circulating fluidized bed) technology is popular in large scale boiler. The fuel can resist in furnace for a long time to be burnt fully, which is high efficient. WNS type boiler is mainly gas and oil fuel boiler, which is in packaged style.

Different fuel boiler

Coal, biomass fuel, gas, oil are all the available fuel for industrial boiler. Most industrial boilers burn coal to get a higher capacity and efficiency, but it is polluted to environment and cost more fuel. Biomass fuel boiler can burn wood chips, sugar cane husks, and other biomass fuel to save cost. Gas fired boilers burn natural gas, LPG, coke oven gas, propane and oil fired boiler can burn gasoline, diesel, or other petroleum-based fluids. Waste heat recovery boiler can collect waste heat that generated in production process and heat water to supply steam or hot water.

There are the main industrial boiler types

Traveling grate type boiler

The traveling grate boilers are widely used in industries all over the world. The boiler can burn both coal and biomass fuel. This boiler includes DZL, SHL, DHL type. It has the features of high power output, high combustion efficiency, stable operation, wide range of overload adjustment,etc.

Cfb boiler

Cfb boiler refers to the circulating fluidized bed type boiler, which can also called as fbc steam boiler. This boilers at high combustion efficiency of up to 99%, which can save many fuel cost than other coal fired boilers. With capacity of 280 t/h, it can meet the need of large industries and power plant.

WNS type boiler

WNS type boiler can burn oil or gas, which is cleaner than others. This boilers are mainly used in school, hospital, hotel, textile industry, chemical plant, power plant, paper & pulp, pharmaceuticals, refinery, food processing, building materials, etc. It include fire tube boiler, water tube boiler and popular D type water tube boiler.

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