1、 本 科 毕 业 设 计 说 明 书本 科 毕 业 设 计 说 明 书 200MW 机组循环流化炉的设计与计算 The Design and Calculation of 200MW Units Circulating Fluidized Bed Boiler 性性 质质: : 毕业设计毕业设计 毕业论文毕业论文 教 学 院： 机电工程学院 系 别： 学生学号： 学生姓名： 专业班级： 指导教师： 职 称： 起止日期： 本科毕业设计说明书 - I - 摘 要 近年来， 随着能源设备的发展和利用， 特别是锅炉这种将工质加热到一定的温度和压力 的能源设备广泛应用，给环境造成了严重污染。尤其是以煤为
2、主要燃料的锅炉燃烧排放出 大量的灰渣、粉尘、二氧化硫和氮的氧化物等污染物，严重影响了生态环境。又由于煤、 石油等化石燃料的不断开采而日渐枯竭，人们一直在努力寻找一种高效、低污染的燃烧方 式以解决以上两个问题。 我国在上世纪80年代初期开始研究开发循环流化床燃烧技术，鉴于CFB锅炉的优点和我 国环境排放标准的日益严格,极大地推动了循环流化床燃烧技术的推广和发展。本次设计为 670吨/时循环流化床锅炉，属于超高压锅炉。 在整个设计过程中，进行了无脱硫工况，脱硫工况的燃料消耗量和燃烧烟气的计算。主 要计算有热平衡计算，热力计算和结构计算。其中热力计算包括炉膛、过热器、省煤器以 及空气预热器的计算。
3、关键词：关键词：循环流化床锅炉；热平衡计算；热力计算；结构计算 ：200MW 机组循环流化炉的设计与计算 - II - Abstract In recent years，along with the extensive application of the energy equipments, boiler this kind of energy equipment that heats the work to a certain temperature and the pressure also be subjected to a value.The widely use of the eq
4、uipments caused serious pollution to the environment.Especially coal as the main fuel of the boiler combustion,that emit large amounts of ash, dust, sulfur dioxide and nitrogen oxide pollutants, such caused a serious impact on the ecological environment.Furthermore as coal, oil and other fossil fuel
5、s continued to mined and the depletion. It has been struggling to find an efficient and Cleaner burning method to solve the above issues. In the early 1980s, China began to research and development the circulating fluidized bed combustion technology. Given the advantages of CFB boilers as well as ou
6、r environmental emissions standards increasingly strict year by year, great impetus has to the circulating fluidized bed combustion technology. The topic that the graduation of this time design is the CFB which is 670t/h, belonging to the Ultra high type pressure boiler。 Throughout the design process，I had made a calculation about the without desulfurization conditions, the status of the desulfurization of fuel consumption and combustion flue gas.The main calculat
