DHX CFB Hot Water Boilers

DHX CFB Hot Water Boilers

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Boiler Description

  As a new mature high-efficiency and low-pollution clean coal technology, circulating fluidized bed combustion (CFBC) technology has many advantages that other combustion methods do not have. Circulating fluidized bed combustion is low-temperature combustion, so the helium oxide emission is much lower than that of pulverized coal furnace, only 200ppm. CFBC can desulfurize directly during the combustion process, and the desulfurization efficiency is high. The technology and equipment are simple and economic, and the costs of its initial investment and operation are much lower than those of dry pulverized coal furnace and flue gas desulfurization (PC+FCD).

  Wide adaptability fuel and high combustion efficiency, especially suitable for low calorific value inferior coal.

  The discharged ash residue has good activity and is easy to be comprehensive utilized without secondary ash residue pollution. The load adjustment range is large, and the low load can be reduced to about 30% of the full load.

Features ofDHX CFB Hot Water Boilers

High temperature cyclone separator

  · High efficiency, wear resistance, separation efficiency ≥ 98%, effectively improve the combustion efficiency of the boiler thermal efficiency.

Large furnace design

  Large furnace, low flow rate design; the application of wearproof pipe technology, reducing erosion wear;

  Extend the residence time of coal particles in the hearth so that the coal can be fully burned.

Bell jar type hood

  Adopt bell jar type hood to distribute air average and avoid fuel returning to wind chamber.

Low bed pressure operation

  Through particle optimization, the operating bed pressure can be as low as 3500 Pa, which effectively saves operating costs and greatly reduces the production of NOx.

Boiler Parameters

锅炉型号
参数项目
Item
Model
DHX58-1.25/130/70-A DHX70-1.6/150/90-A DHX91-1.6/150/90-A DHX116-1.6/150/90-A
额定热功率(MW)
Rated thermal power
58 70 91 116
额定工作压力(MPa)
Rated working pressure
1.25 1.6 1.6 1.6
额定出口水温度(℃)
Rated output water temperature
130 150 150 150
额定进水口温度(℃)
Rated imported water temperature
70 90 90 90
适用燃料
Available Fuel
设计煤种
Designed coal
AⅡ AⅡ AⅡ AⅡ
应用基底位发热值(KJ/KG)
Low heating value
17700 17700 17700 17700

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