Guide: In many large-scale boiler manufacturing plants, as well as in the construction process of industrial boilers, circulating fluidized bed boiler equipment will be seen to play an important role. The characteristics of this boiler equipment are relatively obvious, the fuel adaptability is relatively wide, and the combustion efficiency is high.
In many large-scale boiler manufacturing plants, as well as in the construction process of industrial boilers, circulating fluidized bed boiler equipment will be seen to play an important role. The characteristics of this boiler equipment are relatively obvious, the fuel adaptability is relatively wide, the combustion efficiency is high, and the circulating fluidized bed The combustion efficiency of the boiler is higher than that of the bubbling fluidized bed boiler, usually in the range of 95% to 99%, and its gas-solid mixture is good. So, what are the advantages of circulating fluidized bed boilers?
You will find that the characteristics of the circulating fluidized bed boiler are more obvious. The boiler equipment adopts a single drum, natural circulation, and has two vertical shafts at the front and rear. From top to bottom, there are a wind chamber and a dense phase area. , Dilute phase zone, especially the tail flue is composed of high temperature superheater, low temperature superheater, economizer and air preheater.
The combustion efficiency of this equipment is relatively high, all adopt turbulent bed, so that the fluidization speed is 3.5-4.5m/s, and its combustion efficiency is relatively high. According to relevant research, the NOX emission range of circulating fluidized bed boiler is 50～150ppm Or 40～120mg/MJ, which shows that its nitrogen oxide (NOX) emission is low. In addition, the high combustion intensity of the boiler equipment, the relatively small cross-sectional area of the furnace, and the high heat load per unit cross-sectional area of the furnace are another major advantage of the circulating fluidized bed boiler.
What are the characteristics of circulating fluidized bed boilers, should you understand clearly? The characteristics of the boiler equipment are more obvious, mainly due to the wide adaptability of materials, good load adjustment characteristics, high combustion efficiency, and the entire cycle The fluidized bed boiler equipment has a wide range of fuel adaptability, fewer coal feed points, can simplify the coal feed system, and is more conducive to combustion. The entire fuel pretreatment system is simple, and it is easy to realize the comprehensive utilization of ash and slag. The entire load adjustment range is compared. It is widely used and its load can be adjusted quickly. Therefore, it plays an important role in many factories and enterprises. At this stage, it is also the selected product for the renewal of heating furnaces in China.