某火力发电厂燃煤锅炉房烟气除尘系统设计课题设计任务4：第九组系统方案：（3）先预处理（重力沉降室），再收尘设计除尘系统，使用脉冲电除尘器。学院：建筑与测绘工程学院专业班级：建环111班学号姓名：29号聂金金指导教师：石发恩蒋达华2013年1月4日目录1概述.....................................................................41.1设计目的............................................................41.2设计任务............................................................41.3设计依据及原则......................................................41.4锅炉房基本概况......................................................41.5通风除尘系统的主要设计程序..........................................51.6设计要求............................................................61.7课题背景..........................................................62烟气量烟尘和二氧化硫浓度的计算...........................................92.1标准状态下理论空气量................................................92.2标准状态下理论烟气量................................................92.3标准状态下实际烟气量................................................92.4标准状态下烟气含尘浓度.............................................102.5标准状态下烟气中二氧化硫浓度的计算.................................103除尘器的选择............................................................113.1单台除尘器应该达到的除尘效率.......................................113.2火力发电厂常用除尘器...............................................113.3工况下烟气流量和含尘浓度：.........................................113.4重力除尘器的设计...................................................123.5电除尘器设计.......................................................143.6供电装置脉冲供电除尘器介绍...................................213.7电除尘系统脉冲供电装置选择.........................................243.8DBP系列电除尘器的介绍............................................253.9选择电除尘器.......................................................303.10重力-电除尘器设计结果及其选型一览.................................313.11排灰系统设计核算..................................................324确定除尘器、风机和烟囱的位置及管道的布置................................344.1各装置及管道布置的原则.............................................344.2初始管径的确定.....................................................344.3实际烟气除尘管径的确定.............................................354.4最终除尘系统的管径.................................................374.5烟道的设计计算.....................................................385烟囱的设计..............................................................395.1烟囱高度的确定.....................................................395.2烟囱直径的计算.....................................................395.3烟囱的抽力.........................................................406系统阻力计算............................................................416.1摩擦压力损失.......................................................416.2局部压力损失.......................................................427系统中烟气温度的变化....................................................437.1烟气在管道中的温度降...............................................437.2烟气在烟囱中的温度降...............................................448风机和电动机的选择及计算....................................
