Simulation Study on Velocity Deviations in Air-Powder Pipelines of Ultra-supercritical Units

CHENG Zhihai; JIN Yonghua; ZHENG Chengjie; Lü Guo

doi:10.19805/j.cnki.jcspe.2025.240414

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Simulation Study on Velocity Deviations in Air-Powder Pipelines of Ultra-supercritical Units

更新时间：2026-10-10

- Simulation Study on Velocity Deviations in Air-Powder Pipelines of Ultra-supercritical Units
- Chinese Journal of Power Engineering Vol. 45, Issue 8, Pages: 1173-1178(2025)
- 作者机构：
  
  1. 上海电力大学能源与机械工程学院,上海,201306
  2. 宁夏国能鸳鸯湖发电有限公司,宁夏,银川,750000
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2025.240414
  CLC：
- Online First：12 August 2025，
  
  Published：2025
- 稿件说明：
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程智海,靳雍华,郑成杰,吕国. 超超临界锅炉风粉管道速度偏差的模拟研究动力工程学报, 2025, 45(8): 1173-1178 https://doi.

org/10.19805/j.cnki.jcspe.2025.240414
程智海,靳雍华,郑成杰,吕国. 超超临界锅炉风粉管道速度偏差的模拟研究动力工程学报, 2025, 45(8): 1173-1178 https://doi. DOI： 10.19805/j.cnki.jcspe.2025.240414.

org/10.19805/j.cnki.jcspe.2025.240414 DOI：

摘要

针对某1 000 MW超超临界直流锅炉风粉管道

采用计算流体力学软件对不同磨煤机对应风粉管道出口速度偏差进行了数值模拟

分析了风粉管道自身布置对出口速度偏差的影响

研究了煤粉粒径、风煤比、空气入口温度对风粉管道出口速度偏差的影响规律。结果表明:较长风粉管道的沿程损失比较短风粉管道高

二者出口速度存在偏差;随着煤粉粒径分布越来越分散

风粉管道内部流体的扰动提高

使沿程损失逐渐增大

出口速度偏差呈下降趋势;随着风煤比、空气入口温度的降低

管道内部空气输送煤粉浓度增大

沿程损失逐渐增大

出口速度偏差呈下降趋势。

Abstract

A numerical simulation was conducted on the outlet velocity deviations of air-powder pipelines for different coal mills of a 1 000 MW ultra-supercritical once through boiler using computational fluid dynamics software. The influence of pipeline layout on the outlet velocity deviations was analyzed

and the effect of coal particle size

air-coal ratio and inlet air temperature on the outlet velocity deviations in air-powder pipelines was investigated. Results show that longer pipelines exhibit higher along-route losses compared to shorter ones

resulting in outlet velocity deviations. Moreover

as coal particle size distribution becomes more dispersed

internal flow disturbances in air-powder pipelines increase

leading to escalating along-route losses and decreasing outlet velocity deviations. Decreases in air-coal ratio and inlet air temperature also increase coal concentration in the pipeline

further enhancing along-route losses and reducing outlet velocity deviations.

关键词

Keywords

references

王亚欧, 耿察民, 金炜, 等. 分离燃尽风水平摆角对1000 MW八角切圆锅炉燃烧特性影响的数值研究[J]. 热能动力工程, 2021, 36(8): 106-113. WANG Yaou, GENG Chamin, JIN Wei, et al. Numerical study on the impact of horizontal yaw angle of separated over fire air on the combustion characteristics in a 1000 MW dual circle tangential fired boiler[J]. Journal of Engineering for Thermal Energy and Power, 2021, 36(8): 106-113.

SHA Long, LIU Hui, XU Lianfei, et al. Research on the elliptic aerodynamic field in a 1000 MW dual circle tangential firing single furnace ultra supercritical boiler[J]. Energy, 2012, 46(1): 364-373.

董磊, 陈曦, 马启磊, 等. 超超临界双切圆燃烧锅炉多煤种掺烧下水冷壁结渣特性的数值模拟[J]. 动力工程学报, 2024, 44(2): 241-250. DONG Lei, CHEN Xi, MA Qilei, et al. Numerical simulation of slagging characteristics of ultra supercritical double-tangential circular fired boiler water wall under the combustion of multiple coals' blending[J]. Journal of Chinese Society of Power Engineering, 2024, 44(2): 241-250.

任德军, 陈刚, 张寅, 等. 1000 MW超超临界双切圆混煤燃烧锅炉还原性气氛数值模拟[J]. 动力工程学报, 2023, 43(1): 14-23. REN Dejun, CHEN Gang, ZHANG Yin, et al. Numerical simulation on reducing atmosphere for a 1000 MW ultra-supercritical double tangential circular mixed coal combustion boiler[J]. Journal of Chinese Society of Power Engineering, 2023, 43(1): 14-23.

崔磊, 余德雷. 1000 MW机组八角反向双切圆锅炉缺角燃烧运行方式探讨和解决方法[J]. 锅炉制造, 2019(4): 11-12, 24. CUI Lei, YU Delei. Discussion and solution of angle combustion operation mode for 1000 MW unit octagonal reverse double tangential boiler[J]. Boiler Manufacturing, 2019(4): 11-12, 24.

郭家宝. 送粉管道布置对锅炉燃烧的影响[J]. 华东电力, 2000, 28(2): 32-34. GUO Jiabao. Effect of coal powder transferring pipe arrangement on boiler combustion[J]. East China Electric Power, 2000, 28(2): 32-34.

杨姣, 孙保民, 郭永红, 等. 锅炉送粉管道气固两相流的数值模拟[J]. 电站系统工程, 2013, 29(6): 24-26. YANG Jiao, SUN Baomin, GUO Yonghong, et al. The numerical simulation of gas-solid two-phase flow in the boiler coal pipe[J]. Power System Engineering, 2013, 29(6): 24-26.

朱园红, 章奇. 电厂送粉管道阻力研究分析[J]. 江西电力职业技术学院学报, 2020, 33(7): 9-10. ZHU Yuanhong, ZHANG Qi. A study on resistance of power plant's powder delivery pipe[J]. Journal of Jiangxi Vocational and Technical College of Electricity, 2020, 33(7): 9-10.

李凤鸣. 锅炉送粉系统通过管外壁温度实现风粉混合物断面平均温度的测量[D]. 重庆: 重庆大学, 2002.

吴东垠, 盛宏至, 魏小林, 等. 燃煤锅炉制粉系统的优化运行试验[J]. 中国电机工程学报, 2004, 24(12): 218-221. WU Dongyin, SHENG Hongzhi, WEI Xiaolin, et al. The optimized experiments of milling system for coal-fired boiler[J]. Proceedings of the CSEE, 2004, 24(12): 218-221.

高建刚. 中速磨煤机运行特性及常见故障分析对策[J]. 中国石油石化, 2017(7): 131-132. GAO Jiangang. Operation characteristics and common fault analysis counter measures of medium speed coal mill[J]. China Petrochem, 2017(7): 131-132.

薛飞宇, 韩健民, 梁双印. 电站锅炉双可调煤粉分配器气固两相流动特性研究[J]. 动力工程学报, 2021, 41(12): 1033-1039, 1108. XUE Feiyu, HAN Jianmin, LIANG Shuangyin. Research on gas-solid two-phase flow characteristics of double-adjustable pulverized coal distributors in power station boilers[J]. Journal of Chinese Society of Power Engineering, 2021, 41(12): 1033-1039, 1108.

石全成, 吕为智, 周文台, 等. 可调节煤粉分配器的风粉两相流动特性数值模拟[J]. 动力工程学报, 2022, 42(12): 1183-1190, 1205. SHI Quancheng, L Weizhi, ZHOU Wentai, et al. Numerical simulation of two-phase flow characteristics of pulverized coal distributor[J]. Journal of Chinese Society of Power Engineering, 2022, 42(12): 1183-1190, 1205.

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