1100 MW反向双切圆锅炉蒸汽温度调整研究  

Study on Steam Temperature Adjustment of a 1100 MW Reverse Dual-circle Tangential Firing Boiler

作　　者：巩时尚 陈禄 韩华锋 朱雷 陈铁锋 Gong Shishang;Chen Lu;Han Huafeng;Zhu Lei;Chen Tiefeng(China Energy Engineering Group Northwest Electric Power Test Research Institute Co., Ltd.,Xi’an 710054, China;Guodian Zheneng Ningdong Power Generation Co., Ltd., Yinchuan 750408, China)

机构地区：[1]中国能源建设集团西北电力试验研究院有限公司,西安710054 [2]国电浙能宁东发电有限公司,银川750408

出　　处：《发电设备》2021年第1期10-16,共7页Power Equipment

摘　　要：为解决超超临界反向双切圆锅炉蒸汽温度偏低的问题,在过热器与再热器壁温不超温的基础上,研究了燃烧器摆角、运行氧气体积分数、燃尽风量、烟气挡板开度、一次风量、二次风配风模式及吹灰方式等因素对主蒸汽温度与再热蒸汽温度的影响并进行了综合优化调整。结果表明:同时优化调整各参数时,主蒸汽温度和再热蒸汽温度均能达到设计值,调整效果良好,可为该类型机组蒸汽温度调整提供参考。To solve the problem of low steam temperature existing in an ultra supercritical unit with reverse dual-circle tangential firing boiler,the effects of the following factors on the main steam and reheat steam temperature were studied under the premise that the wall of the superheater and reheater is not overheated,such as the swing angle of burner,the volume fraction of operating oxygen,the flow rate of burnout air,the opening of flue gas baffle,the flow rate of primary air,the distribution mode of secondary air and the way of soot blowing optimization,etc.,after which,comprehensive optimizations and adjustments were carried out.Results show that the main steam temperature and reheat steam temperature can both reach their design values after above factors are adjusted simultaneously,indicating good adjustment effect.This may serve as a reference for steam temperature adjustment of similar units.

关 键 词：超超临界锅炉 反向双切圆燃烧 主蒸汽温度 再热蒸汽温度 

分 类 号：TK227.1[动力工程及工程热物理—动力机械及工程]