山东大学学报 (工学版) ›› 2022, Vol. 52 ›› Issue (3): 100-108.doi: 10.6040/j.issn.1672-3961.0.2021.560
刘舫辰1,石岩1,李元鲁1,王湛1,杜文静1,季万祥2*
LIU Fangchen1, SHI Yan1, LI Yuanlu1, WANG Zhan1, DU Wenjing1, JI Wanxiang2*
摘要： 以低温省煤器及其管道为研究对象,采用数值模拟方法,对低温省煤器及其管道流动及磨损特性进行分析,采用添加导流板的方式对流场进行优化以降低磨损量。低温省煤器前方圆节的布置导致流场紊乱,低温省煤器入口截面速度分布均匀性较差,管束磨损区域与高速区相对应,冲蚀磨损主要集中在中心区域,第一排管束迎风区磨损量最大,后排管束磨损量依次降低;对方圆节内置导流板进行优化后,低温省煤器前流场速度标准偏差由34.9降低至15.2,均匀性提高,管束的最大冲蚀磨损量降低两个数量级,磨损程度大幅度降低,保障了低温省煤器的安全经济运行,为低温省煤器及其管道的优化设计及运行提供了理论参考与数据支持。
中图分类号:
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