秦世泰,杜俊硕,李驰,周永清

• 1:国家能源蓬莱发电有限公司
• 2:烟台龙源电力技术股份有限公司
• 3:天津大学机械工程学院

摘要(Abstract)：

旋风炉作为一种液态排渣炉，其空气动力学特性与煤粉炉存在显著差异，目前尚缺乏可有效指导旋风炉设计和运行的计算流体动力学（CFD）模型。对此，开发了一种旋风炉CFD数值模型，该模型通过渣层煤粒捕集模型将熔融渣层对煤粒的捕集作用结合在模型中。将该模型应用于某550 MW机组旋风炉的空气动力学特性和烟气再循环（FGR）优化设计研究。研究表明，旋风筒产生的强旋流场使炉内流场分布极不均匀，导致了炉内局部高温和水平烟道入口的严重结渣问题。因此，FGR喷口应根据炉内的不均匀流场和温度分布进行针对性设计，以有效消除炉内的局部高温区域。模拟计算和现场实施结果表明，通过FGR优化设计，炉膛局部高温和严重结渣问题得到了有效缓解。

关键词(KeyWords)： 旋风炉;灰渣层;计算流体动力学;烟气再循环;结渣

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 秦世泰,杜俊硕,李驰,周永清

DOI: 10.19666/j.rlfd.202307108

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