130t循环流化床锅炉设计.doc

130t/h循环流化床锅炉设计计算 （设计煤种：铜川贫煤） 摘要％％℃的循环流化床锅炉。 最后，结合计算结果，完成锅炉本体横纵剖面图和旋风分离器、省煤器等CAD图纸绘制以及手画图。 关键字：循环流化床Abstract This is a design of 130t/h circulating fluidized bed boiler. Coal is tong chuan meagre coal. Conditions in the desulfurization its air and combustion products and the size of the enthalpy of water supply, boiler heat balance and the overall consumption of limestone, hearth furnace model steam and cold water wall screen heat transfer coefficient, the furnace heat, cold Cyclones cylinder steam heat , The flue gas cylinder steam Cyclones cold calculation of resistance and to feed the furnace and air distribution device resistance calculation. Is also available in the rear of flue economizer, air preheater, the structure of overheating and heat transfer etc. Through desulfurization , the heat balance calculation of boiler and superheater flue to the rear, economizer, air preheater and reasonable structure design, the rational distribution of heat absorption. the desulfurization efficiency of 92.8% of the circulating fluidized bed boiler is designed. the thermal efficiency of boiler is 89%. flue gas temperature of the circulating fluidized bed boiler is 139 ℃. Finally, the combination of results to complete the cross-section of Fig boiler and cyclone, economizer CAD drawings, etc, as well as hand-drawn painting. Key words: circulating fluidized bed boiler design calculation 目 录 130t/h循环流化床锅炉设计计算 （设计煤种：铜川贫煤） I 摘要： I Abstract II 1 绪论 1 2 基本数据 3 2.2 石灰石 3 3 燃烧脱硫计算 4 3.1 无脱硫工况时的燃烧计算 4 3.2 无脱硫工况时的烟气体积计算 4 3.3 脱硫计算 5 3.4 脱硫工况时受热面中燃烧产物的平均特性 8 3.5 脱硫工况时燃烧产物焓温表 9 4 130t/h循环流化床锅炉计算 11 4.1锅炉设计参数 11 4.2 锅炉热平衡及燃料和石灰石消耗量 11 4.3炉膛膜式水冷壁传热系数计算 14 4.4 炉膛汽冷屏传热系数计算 16 4.5 第二级（高温）过热器 19 4.5.1 第二级（高温）过热器的结构计算 19 4.5.2 第二级（高温）过热器的传热计算 20 4.6 第一级（低温）过热器 23 4.6.1 第一级（低温）过热器结构计算 23 4.6.2 第一级（低温）过热器传热计算 24 4.7 省煤器计算 27 4.7.1 高温省煤器结构设计计算 27 4.7.2 高温省煤器传热计算 28 4.7.3 低温省煤器结构设计计算 31 4.7.4 低温省煤器传热计算 32 4.8 空气预热器计算 34 4.8.1 高温空气预热器结构设计计算 34 4.8.2 高温空气预热器传热计算 3