1000MW锅炉添加炉膛贴壁风系统后屏过超温分析  

作　　者：蔡小敏 

机构地区：[1]广东粤电靖海发电有限公司,广东汕头515223

出　　处：《科技视界》2018年第12期33-34,共2页Science & Technology Vision

摘　　要：用于防止发电厂炉膛水冷壁发生高温腐蚀而加装炉膛贴壁风系统,由于对二次风造成分流作用,使得侧墙氧量增加,大大破坏原先的内部流场分布,在减少侧墙水冷壁发生高温腐蚀的同时,造成屏过、高过管壁温度极易发生超温状况。由于炉膛贴壁风的介入,同时针对各产地的差异煤种,锅炉各配风风量,总煤粉量、总风量等锅炉参数必须做出相应的改变调整才能保证燃煤的快速着火和燃尽。to prevent power plant furnace water wall high temperature corrosion and equipped with a stove or furnace wall wind system, due to the secondary air distribution function, increase oxygen side wails, greatly damage the original internal flow field distribution, side to reduce high temperature corrosion of water wall occurred at the same time, due to screen, above overtemperature tube wall temperature easily happened. Because of the furnace wall wind intervention, at the same time, in view of the different types of the origin, boiler air distribution air volume, total amount of pulverized coal, total air volume must make the corresponding adjustment to change the boiler parameters, such as to ensure fast ignition and burning of coal.

关 键 词：贴壁风 高温腐蚀 超温 控制措施 

分 类 号：TG142.71[一般工业技术—材料科学与工程]