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Question:

What does CFB mean by circulating fluidized bed boiler?

What does CFB mean by circulating fluidized bed boiler?

Answer:

Circulating fluidized bed boiler (CFB) is the first three letters of each word in English Circulating fluidized bed, which means circulating fluidized bed (CFB)
CFB (circulating, fluidized, bed) is developed on the basis of bubbling bed boiler (fluidized bed furnace). Therefore, some theories and concepts of bubbling bed can be applied to CFB boiler. But there is a big difference. The early circulating fluidized bed boiler has a relatively high fluidizing speed, so it is called a fast circulating fluidized bed boiler. The basic theory of fast bed can also be used in circulating fluidized bed boilers. The basic theory of bubble bed and fast bed has been studied for a long time and has formed a certain theory. In order to understand the principle of CFB, it is necessary to understand the theory of bubbling bed and fast bed, and the dynamic characteristics, combustion characteristics and heat transfer characteristics of materials from bubbling bed to turbulent bed to fast bed.
Technology of circulating fluidized bed boiler is an efficient and low pollution clean over the last decade the rapid development of combustion technology. The technology has been widely used in commercial power plant boilers, industrial boilers and waste treatment and utilization and other fields, and to the development of large scale circulating fluidized bed boiler several 101000 watt scale; domestic research in this aspect, the development and application of gradually rising, there are hundreds of circulating fluidized bed boiler is put into operation or manufacturing. The next few years will be an important period for the rapid development of cfb.

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