作者简介:姚钰闽(1999—),男,硕士生;
吴东垠(通信作者),男,教授,博士生导师。
收稿:2025-03-28,
纸质出版:2025-11-10
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姚钰闽, 吴东垠. 蒸汽吹灰器吹扫过程的瞬态模拟与性能优化[J]. 西安交通大学学报, 2025,59(11):144-154.
YAO Yumin, WU Dongyin. Transient Simulation and Performance Optimization of Steam Soot Blower Purge Cleaning Process[J]. Journal of Xi'an Jiaotong University, 2025, 59(11): 144-154.
姚钰闽, 吴东垠. 蒸汽吹灰器吹扫过程的瞬态模拟与性能优化[J]. 西安交通大学学报, 2025,59(11):144-154. DOI: 10.7652/xjtuxb202511014.
YAO Yumin, WU Dongyin. Transient Simulation and Performance Optimization of Steam Soot Blower Purge Cleaning Process[J]. Journal of Xi'an Jiaotong University, 2025, 59(11): 144-154. DOI: 10.7652/xjtuxb202511014.
针对传统吹灰器模型无法同时模拟吹灰器内流场和吹扫清灰过程,构建了吹灰器射流模型和吹灰器吹扫模型,对具有完整结构的吹灰器的吹灰射流及其吹扫管束的过程进行瞬态仿真,研究了吹灰器与管束的间距、管子布置方式和管子间距等因素对吹灰效果的影响,并引入峰值冲击压力和有效清灰面积等指标衡量锅炉清灰效果。研究结果表明:管束与吹灰器的间距从250mm增至350mm,射流作用在管壁的峰值冲击压力减小,最大有效清灰面积下降了67.38%,间距增至400mm时,射流已基本失去清灰能力。错列管束不会出现吹空现象,比顺列管束节省吹灰蒸汽。吹灰器布置在管子对称面的正上方,因为喷管和管束的间距要比将吹灰器布置在相邻两列管子的中间时小,峰值冲击压力更大,两种吹灰器布置方式对位于吹灰器正下方的后排管子清灰效果相近,综合来看吹灰器布置在管子对称面的正上方更优。管子之间的间距从70mm增至100mm,虽然会减小第1排管子对吹灰射流的阻碍,二次射流能够从侧面冲刷到第2排管子上,但同时射流前进的距离增加,总压损失变大,两侧管子的最大有效清灰面积降低了10.3%,发生吹空的区域也增大,因此小间距的管束清灰效果更好,蒸汽利用效率也高。
Traditional soot blower models cannot simultaneously simulate the internal flow field of the soot blower and the process of soot cleaning. In this study
a soot blower jet model and a soot blower cleaning model are constructed to perform transient simulations on the soot blower jet and the cleaning process of tube bundles with a complete soot blower structure. The effects of factors such as the distance between the soot blower and the tube bundle
tube arrangement patterns
and tube spacing on soot cleaning effectiveness are studied. Indicators such as peak impact pressure and effective cleaning area are introduced to evaluate the cleaning performance. The results show that as the distance between the tube bundle and the soot blower increases from 250mm to 350mm
the peak impact pressure of the jet on the tube wall decreases
and the maximum effective cleaning area decreases by 67.38%.When the distance increases to 400mm
the jet essentially loses its cleaning capability. A staggered tube bundle arrangement prevents blow-through and also saves steam compared to inline tube bundle arrangements. Placing the soot blower directly above the symmetry plane of the tubes
where the nozzle-to-tube distance is shorter compared to positioning it between two adjacent tube rows
results in higher peak impact pressure. Both soot blower placement methods perform similarly in cleaning the rear tubes located directly below the soot blower. However
overall
it is preferable to place the soot blower directly above the symmetric plane of the tubes. When the spacing between tubes increases from 70mm to 100mm
while the obstruction of the first row of tubes to the soot blower jet is reduced
thereby allowing secondary jets to strike the second row of tubes from the side
the jet's longer travel distance increases total pressure loss. Consequently
the maximum effective cleaning area on the side tubes decreases by 10.3%
and the blow-through zone also expands. Thus
tube bundles with smaller spacing achieve better cleaning results and higher steam utilization efficiency.
TRAN H , TANDRA D . Recovery boiler sootblowers:history and technological advances [J ] . Tappi Journal , 2015 , 14 ( 1 ): 51 - 60 .
张广才 , 王一坤 , 柳宏刚 , 等 . 大型燃煤电站锅炉吹灰技术与应用现状 [J ] . 华电技术 , 2017 , 39 ( 3 ): 12 - 15 .
ZHANG Guangcai , WANG Yikun , LIU Honggang , et al . Boilersoot blowing technology and application status of large coal-fired power station [J ] . Huadian Technology , 2017 , 39 ( 3 ): 12 - 15 .
李世军 . 锅炉吹灰器选型和布置原则探讨 [J ] . 电站辅机 , 2015 , 36 ( 3 ): 22 - 25 .
LI Shijun . Discussion of selection and arrangement of boiler sootblower [J ] . Power Station Auxiliary Equipment , 2015 , 36 ( 3 ): 22 - 25 .
KALIAZINE A , CORMACK D E , TRAN H , et al . Feasibility of using low pressure steam for sootblowing [J ] . Pulp & Paper Canada , 2006 , 107 ( 4 ): 34 - 38 .
POPHALI A , EMAMI B , BUSSMANN M , et al . Studies on sootblower jet dynamics and ash deposit removal in industrial boilers [J ] . Fuel Processing Technology , 2013 , 105 : 69 - 76 .
POPHALI A . Interaction between a supersonic jet and tubes in Kraft recovery boilers [D ] . Toronto,Canada : University of Toronto , 2011 .
卢权 , 李延兵 , 郝剑 , 等 . 基于数值模拟的高效分级蒸汽吹灰器开发 [J ] . 热力发电 , 2017 , 46 ( 7 ): 92 - 96 .
LU Quan , LI Yanbing , HAO Jian , et al . Development and numerical simulation for a high efficiency steam soot blower [J ] . Thermal Power Generation , 2017 , 46 ( 7 ): 92 - 96 .
李文华 , 鲍听 , 沈利 , 等 . 管式GGH蒸汽吹灰器改造数值模拟及工程验证 [J ] . 热力发电 , 2020 , 49 ( 3 ): 118 - 123 .
LI Wenhua , BAO Ting , SHEN Li , et al . Numerical simulation and practical verification of soot-blowing system retrofitting for tubular gas-gas heater [J ] . Thermal Power Generation , 2020 , 49 ( 3 ): 118 - 123 .
EMAMI B , BUSSMANN M , TRAN H , et al . Advanced CFD simulations of sootblower jets [EB/OL ] . ( 2025-03-01 ) https://bussmann.mie.utoronto.ca/wp_content/uploads/2010-ICRC-Emami Bussmann Tran-Tandra.pdf .
EMAMI B . Numerical simulation of Kraft recovery boiler sootblower jets [D ] . Toronto,Canada : University of Toronto , 2009 .
YOU Shenglong . Numerical modeling of recovery boiler deposit removal under sootblower jet impingement [D ] . Toronto,Canada : University of Toronto , 2020 .
冯庆伟 . 蒸汽射流喷嘴设计与试验研究 [J ] . 石油矿场机械 , 2015 , 44 ( 6 ): 43 - 46 .
FENG Qingwei . Design and experimental analysis of steam jet nozzle in cleaning heavy oil pipeline [J ] . Oil Field Equipment , 2015 , 44 ( 6 ): 43 - 46 .
党睿 , 高勇 , 樊康康 , 等 . 新型蒸汽喷嘴数值模拟研究 [J ] . 当代化工 , 2018 , 47 ( 12 ): 2617 - 2620 .
DANG Rui , GAO Yong , FAN Kangkang , et al . Study on numerical simulation of new steam nozzle [J ] . Contemporary Chemical Industry , 2018 , 47 ( 12 ): 2617 - 2620 .
赵宏星 , 卢耀辉 , 王北昆 , 等 . 气流清扫的超音速喷管气动设计及其性能的对比分析 [J ] . 装备环境工程 , 2023 , 20 ( 8 ): 90 - 97 .
ZHAO Hongxing , LU Yaohui , WANG Beikun , et al . Aerodynamic design and performance comparison of supersonic nozzle using airflow sweeping [J ] . Equipment Environmental Engineering , 2023 , 20 ( 8 ): 90 - 97 .
VAN BANNING D H C , VAN DER GELD C W M , BROOS P J C , et al . An assessment of nozzles for steam attemperation [J ] . Experimental Thermal and Fluid Science , 2014 , 55 : 86 - 94 .
BUSSMANN M , EMAMI B , TANDRA D , et al . Modeling of sootblower jets and the impact on deposit removal in industrial boilers [J ] . Energy & Fuels , 2013 , 27 ( 10 ): 5733 - 5737 .
DOROUDI S , POP HALI A , BUSSMANN M , et al . Modelling sootblower jet effectiveness with Ansys Fluent [J ] . Journal of Science & Technology for Forest Products and Processes , 2014 , 4 ( 4 ): 30 - 35 .
KASHITANI M , MIYAZATO Y , MASUDA M , et al . Numerical and experimental investigations of supersonic jets from sootblower nozzle [J ] . JSME International Journal Series B , 1998 , 41 ( 2 ): 375 - 380 .
CHUECH S G , LAI M C , FAETH G M . Structure of turbulent sonic underexpanded free jets [J ] . AIAA Journal , 1989 , 27 ( 5 ): 549 - 559 .
TSUTSUMI S , TERAMOTO S , YAMAGUCHI K , et al . Structure of underexpanded jets from square nozzles [J ] . AIAA Journal , 2006 , 44 ( 6 ): 1287 - 1291 .
高凤 , 周一卉 , 刘志军 , 等 . 真实气体效应对气波波动和能量传递过程的影响 [J ] . 过程工程学报 , 2024 , 24 ( 9 ): 1036 - 1046 .
GAO Feng , ZHOU Yihui , LIU Zhijun , et al . Influence of real gas effects on wave dynamics and energy transfer processes [J ] . The Chinese Journal of Process Engineering , 2024 , 24 ( 9 ): 1036 - 1046 .
PANDA J , SEASHOLTZ R G . Velocity and temperature measurement in supersonic free jets using spectrally resolved Rayleigh scattering [C ] // 37th Aerospace Sciences Meeting and Exhibit . Reston,VA, USA : AIAA , 1999 : AIAA1999 - 296 .
JAMEEL M I , CORMACK D E , TRAN H , et al . Sootblower optimization:part 1 fundamental hydrodynamics of a sootblower nozzle and jet [J ] . TAPPI Journal , 1994 , 77 ( 5 ): 135 - 142 .
PIROOZMAND F . An experimental study of strength of recovery boiler fireside deposits at high temperatures [D ] . Toronto,Canada : University of Toronto , 1997 .
KALIAZINE A L , PIROOZMAND F , CORMACK D E , et al . Sootblower optimization:Ⅱ deposit and sootblower interaction [J ] . Tappi Journal , 1997 , 80 ( 11 ): 201 - 207 .
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