两段燃烧流化床锅炉的设计方法

The Design method for a Fluidized Bed Boiler with Two-stage Combustion

一种新型两段燃烧流化床锅炉 ,能实现燃气、蒸汽联产和减少有害气体的大气的排放 ,特别适合于中小企业和经济发达的乡镇燃气化和集中供热。文中介绍了两段燃烧系统的运行原理和设计要求以及气化段的热力计算方法 ,建立了预测燃气成份的气化平衡模型 ,并进行了计算 ,计算结果与工业测试数据进行了比较 ,两者符合较好。根据计算结果和理论分析 。

A new type of fluidized bed boiler with two-stage combustion is designed for use in a gas and steam cogeneration plant, featuring low emissions of harmful gases. Because of this it is especially suited for gasification units and central heating plants of small and medium-sized enterprises in economically developed rural districts. The authors present the operating principles and design requirements of a two-stage combustion system as well as the thermodynamic calculation method of the relevant gasification section. A gasification equilibrium model was set up to predict the gas components with related calculations being performed. The calculation results have been found to be in fairly good agreement with industrial measurement and test data. On the basis of the calculation results and a theoretical analysis effective measures are proposed to rationally organize the two-stage combustion.