300 MW循环流化床锅炉床温优化控制分析与应用.pdf
第46卷第1期煤炭科技Vol.46No.1
2025年2月COALSCIENCE&TECHNOLOGYMAGAZINEFeb.2025
文章编号:1008-3731(2025)01-0038-04
300MW循环流化床锅炉床温优化控制
分析与应用
薛志强,贺炳森
(江苏徐矿综合利用发电有限公司,江苏徐州221000)
摘要:煤电机组改造升级是提高机组灵活、高效、环保运行的重要手段,对助力风能、光伏发电等清洁
能源消纳和“双碳”目标的如期实现方面具有重要意义。某电厂2×300MW循环流化床锅炉为解决床
温分布不均匀、初始NO生产浓度高等问题,实施水冷蒸发屏、屏式再热器扩容技术改造。实施后,锅炉
x
中部床温显著下降并实现均匀分布,有效降低了NO生成量,提高了机组运行的灵活性,具有较好的经
x
济效益和社会效益。
关键词:循环流化床;水冷蒸发屏;屏式再热器;改造;分析;应用
中图分类号:TK229.66;TM621文献标志码:A
Analysisandapplicationofbedtemperatureoptimizationcontrol
for300MWcirculatingfluidizedbedboiler
XueZhiqiang,HeBingsen
(JiangsuXukuangUtilizationPowerGenerationCo.,Ltd.,Xuzhou221000,China)
Abstract:Thetransformationandupgradingofcoalfiredpowerunitsisanimportantmeanstoimprovetheirflexible,efficient,andenvi
ronmentallyfriendlyoperation.Itisofgreatsignificanceinassistingtheconsumptionofcleanenergysuchaswindandsolarpowerand
achievingthe"dualcarbon"goalsonschedule.Inordertosolvetheproblemsofunevenbedtemperaturedistributionandhighinitial
NOproductionconcentrationina2×300MWcirculatingfluidizedbedboilerofacertainpowerplant,awatercooledevaporative
x
screenandscreentypereheaterexpansiontechnologytransformationwasimplemented.Afterimplementation,thebedtemperatureinthe
middleoftheboilersignificantlydecreasedandachieveduniformdistribution,effectivelyreducingNOgenerationandimprovingthe
x
flexibilityofunitoperation,whichhasgoodeconomicandsocialbenefits.
Keywords:circulatingfluidizedbed;watercooledevaporationscreen;screentypereheater;reform;analysis;application
CLCnumber:TK229