Not only the thermal efficiency of coal fired boilers, even the thermal efficiency of gas fired boilers and oil fired boilers, the thermal efficiency of waste heat boiler and biomass boiler, are high and low, which is largely due to technology, design, different materials of different manufacturers, But also has a great relationship with the boiler installation and operation of the boiler.
There are two main types of coal fired boilers, one is the chain grate boilers, and the other is circulating fluidized bed boilers. In contrast, the thermal efficiency of chain boilers is lower than the circulating fluidized bed boilers, especially the chain grate boiler, which is a furnace type limitation. ZBG DZL chain grate boiler, SZL series chain grate boiler and other packaged chain grate boiler, the thermal efficiency can reach more than 80%, and ZBG circulating fluidized bed boilers, the energy efficiency can be as high as 91% or more.
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