元宝山电厂烟风系统及风道设计.doc

元宝山电厂烟风系统及风道设计 摘 要 烟风道系统简介 锅炉烟风道风道系统系统是锅炉空气系统系统和烟气系统的总称。按我国火力发电厂施工图卷册设计的传统划分方法，它应该包括冷风道风道、热风道和烟道，与这三类通道相关的设备有：送风机、引风机、一次风机、密封空气风机、热风器、除尘器、脱硫装置及烟囱等。与这三类通道相关的元件有：封闭挡板风门、调节挡板风门、插板门、补偿器（膨胀节）、防暴门、人孔门、吹扫孔及消声器等。冷风道（1）由吸风口至送风机和由送风机至空气预热气的冷风管道；（2）冷一次风机的进口风道和出口风道；（3）磨煤机的密封空气管道和调温用的压力冷风道；（4）锅炉尾部支架梁的冷却风道；（5）微正压锅炉的密封（顶棚和燃烧室伸缩缝位置）管道；（6）回转式空气预热器的漏风管道；（7）锅炉防暴门的引出管道；（8）点火风和扫描冷却风管道。 热风道（1）空气预热器出口风箱；（2）燃烧器的二次风道；（3）磨煤机干燥燃料用的热风道；（4）热风送粉用的热风道；（5）热一次风机的进口和出口管道；（6）热风再循环烟道；（7）锅炉间的热风联络管；（8）三次风喷口冷却风道；（9）烟气干燥混合器的热风道；（10）风扇磨煤机密封管道及烟气再循环密封空气管道； （11）炉排锅炉的一次和二次风道；（12）空气预热器低温段至磨煤机和排粉机的温风道。烟道 （1）空气预热器至除尘器的烟道； （2）除尘器至引风机的烟道； （3）引风机至烟囱的烟道； （4）烟气再循环管道； （5）磨煤机干燥燃料用的高温烟气管道； （6）低温烟气管道和混合室至磨煤机进口的干燥管 Abstract Introduction smoke duct system Boiler smoke duct air duct system system is a boiler air system systems and flue gas systems in general. Based on Chinas thermal power plant construction plans volumes traditional design division method, it should include cold Tao air duct, air and flue channel, the channel associated with these three types of equipment: blower, induced draft fan, a fan, sealed air fans, air heaters, precipitators, desulphurisation installations and chimney. Channel associated with these three components are: closed damper damper, adjustable baffle damper flapper door, compensator (expansion joint), riot doors, Manhole, purge hole and muffler. Cold Road (1) from the suction outlet to the blower and the air from the blower to preheat cold gas pipeline; (2) Cold air blower duct import and export air duct; (3) mill sealing air pressure used in pipes and thermostat cold Road; (4) Bracket beam rear of the boiler cooling air duct; (5) Low pressure boiler seals (joints position and the combustion chamber ceiling) pipes; (6) rotary air preheater leakage pipeline; (7) leads to the boiler pipes riot doors; (8) Ignition wind and scanning cooling air duct. Hot air channel (1) The air preheater outlet bellows; (2) burner secondary air duct; (3) fuel ho