SZLAⅡ双锅筒纵置式链条炉排炉方案毕业论文.docx

毕业设计说明书设计（论文）题目：SZL6-1.25-AⅡ双锅筒纵置式链条炉排炉设计学生姓名：姚鹏飞学 号：200815200116专业班级：08热能1班 学 部：材料化工部指导教师：梁精龙 讲师2012年05月24日摘 要工业锅炉主要用于生产和采暖提供热源。本次毕业设计的题目是SZL6-1.25-AⅡ，属于双锅筒纵置式链条炉排炉。设计本着锅炉运行的安全性和可靠性为首要设计的准则，在锅炉设计的过程中，主要考虑的因素是炉膛内有足够的辐射热量，煤的燃尽程度以及合理的烟气速度和排烟温度。设计中运用了分层燃烧技术，添加中拱以优化炉拱，符合节能要求。在整个设计过程中根据给定煤种及炉型等约束条件拟定锅炉基本结构并进行了锅炉热力计算。其中包括炉膛、锅炉管束、省煤气，空气预热器的结构设计和热力计算。为了使小型锅炉的结构紧凑，大部分受热面都布置在炉膛内。在设计过程中采用先布置结构尺寸，而后进行校核计算的方法，使该锅炉各受热面的烟气和工质的温度、流速确定在合理地范围内。最后利用CAD完成了锅炉总图。关键词　热力计算；炉膛；分层燃烧；中拱AbstractIndustrial boiler is mainly used for the production of industrial boiler and heating heat source, the main task is: converting the chemical energy of the fuel into heat energy.The graduation design topic is the SZL6-1.25-A II, which belongs to a double cylinder vertically type chain grate furnace. Design of boiler operation safety and reliability as the main design characteristics of the guidelines. In boiler design process, the main consideration is sufficient radiant heat, coal burnout degree and reasonable flue gas velocity and temperature of flue gas. Use in the design of stratified combustion technology, and optimize the furnace arch design added the middle arch, meet the requirements of energy conservation.Throughout the design process,according to the given coal and furnace type constraints to boiler basic structure and the thermal calculation of boiler. Including the furnace, boiler tubes, gas, air preheater structure design and thermal calculation. In order to make the small boiler has the advantages of compact structure, large heating surface are arranged in the furnace hearth. In the design process using the first arrangement structure size, and then checking calculation method, the heating surface of the boiler flue gas and refrigerant temperature, flow rate was determined in the reasonable range. Finally, using CAD completed boiler.Keywordsthermodynamic calculation;Furnace; combustion; arch目 录摘要IAbstractII第一章绪论11.1 工业锅炉简介11.2 工业锅炉的现状11.2.1 工业锅炉在国内的发展状况11.2.2工业锅炉技术与国外的差距21.3工业锅炉