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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

• • 上一篇    

用于燃煤电厂的低温省煤器前烟道流动及磨损特性

刘舫辰1,石岩1,李元鲁1,王湛1,杜文静1,季万祥2*   

  1. 1.山东大学能源与动力工程学院, 山东 济南 250061;2.山东大学热科学与工程研究中心, 山东 济南 250061
  • 发布日期:2022-06-23
  • 作者简介:刘舫辰(1998— ),男,山东荣成人,硕士研究生,主要研究方向为传热强化. E-mail:1023186559@qq.com. *通信作者简介:季万祥(1965— ),男,山东济南人,实验师,主要研究方向为电力系统设备及节能. E-mail:jwx@sdu.edu.cn
  • 基金资助:
    山东省重点研发计划资助项目(2019JZZY010454)

Flow and wear characteristics in front flue of low-temperature economizer used in coal-fired power plant

LIU Fangchen1, SHI Yan1, LI Yuanlu1, WANG Zhan1, DU Wenjing1, JI Wanxiang2*   

  1. 1. School of Energy and Power Engineering, Shandong University, Jinan 250061, Shandong, China;
    2. Institute of Thermal Science &
    Technology, Shandong University, Jinan 250061, Shandong, China
  • Published:2022-06-23

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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。

关键词: 磨损, 流动, 数值模拟, 低温省煤器, 管束

中图分类号: 

  • TH117.1
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