某DN 1 500烟气挡板流量特性的数值模拟

doi:10.13438/j.cnki.jdzk.2021.05.008

吉首大学学报（自然科学版） ›› 2021, Vol. 42 ›› Issue (5): 44-49.DOI: 10.13438/j.cnki.jdzk.2021.05.008

某DN 1 500烟气挡板流量特性的数值模拟

王战锋，樊桦

（1. 陕西商洛发电有限公司，陕西商洛 726000；2. 西安交通大学能源与动力工程学院，陕西西安 710049）

出版日期:2021-09-25 发布日期:2022-01-18
作者简介:王战锋（1982—），男，山西平陆人，工程师，主要从事电站锅炉经济性运行和低排放等研究.
基金资助:
国家重点研发计划重点专项项目（2016YFB0601403）

Numerical Simulation of Flow Characteristics of a DN 1 500 Flue Gas Damper

WANG Zhanfeng, FAN Hua

(1. Shaanxi Shangluo Power Generation Co., Ltd., Shangluo 726000, Shaanxi China; 2. Department of Energy and Power Engineering, Xi’an Jiaotong University，Xi’an 710049, China)

Online:2021-09-25 Published:2022-01-18

摘要/Abstract

摘要：利用Fluent数值模拟软件计算了某DN 1 500烟气挡板压降为100，300，500，700，1 000 Pa，挡板开度为10°，20°，30°，40°，50°，60°，70°，80°，90°时对应的烟气质量流量，以及挡板压降为1 000 Pa，挡板开度为10°，30°，50°，70°，90°时对应的烟气速度矢量，并拟合了挡板压降为100 Pa时的流量特性分段函数.研究结果表明，要保证挡板全开时压降小于100 Pa，全开时的烟气质量流量就不能超过25.05 kg/s；考虑到流场不均匀导致的挡板局部磨损，应当尽量避免挡板在小开度下长时间工作；运行过程中烟气挡板宜在23°~81°之间调节烟气质量流量.

关键词： 烟气挡板, 流量特性, 数值模拟, 烟气质量流量, 速度矢量

Abstract: Fluent was used to simulate the flow characteristics of a DN 1 500 flue gas damper. Flue gas mass flows and velocity vector were obtained when the damper pressure drop were 100, 300, 500, 700, 1 000 Pa respectively and the damper opening were 10°, 20°, 30°, 40°, 50°, 60°, 70°, 80°, 90° respectively. The influence of pressure drop on flue gas mass flow and flow field were analyzed. Moreover, the piecewise function of flow characteristics corresponding to damper pressure drop of 100 Pa was fitted. The results showed that to have pressure drop less than 100 Pa, the flue gas mass flow with full opening of damper should not exceed 25.05 kg/s. With possible wear, damper should not be operated in narrow angle for long time. It is appropriate to operate the damper in 23°~81° to control the flue gas mass flow.

Key words: flue gas damper, flow characteristics, numerical simulation, mass flow, velocity vector

王战锋, 樊桦. 某DN 1 500烟气挡板流量特性的数值模拟[J]. 吉首大学学报（自然科学版）, 2021, 42(5): 44-49.

WANG Zhanfeng, FAN Hua. Numerical Simulation of Flow Characteristics of a DN 1 500 Flue Gas Damper[J]. Journal of Jishou University(Natural Sciences Edition), 2021, 42(5): 44-49.

参考文献

[1] 李荣梅.600MW超临界直流炉汽温控制策略的研究[D].北京:华北电力大学,2007:10-11.
[2] 闫慧博,杜建桥,贾永会,等.350MW超临界机组燃烧调整试验及优化分析[J].热能动力工程,2020,35(7):123-129.
[3] 巩时尚,陈禄,韩华锋,等.1100MW反向双切圆锅炉蒸汽温度调整研究[J].发电设备,2021,35(1):10-16.
[4] 牛海明,邱忠昌,黄焕袍.1000MW二次再热超超临界机组再热汽温控制策略及工程应用[J].中国电力,2017,50(9):138-142.
[5] 赵志丹,郝德峰,王海涛,等.二次再热超超临界机组再热蒸汽温度控制策略[J].热力发电,2015,44(12):113-118.
[6] 蔡宝玲,高海东,王剑钊,等.二次再热超超临界机组动态特性分析及控制策略验证[J].中国电机工程学报,2016,36(19):5288-5299.
[7] 何维.东方二次再热锅炉再热面受热匹配特性及影响因素研究[D].重庆:重庆大学,2015:37-43.
[8] 周云龙,张立彦.方形截面螺旋管内气液两相流动特性数值研究[J].化工机械,2015,42(1):85-92.
[9] 刘海飞,陈虹,杨潞锋,等.液氢在节流件中的流动特性研究[J].低温与超导,2014,42(12):10-14.
[10] 柳富明.长输矿浆管道流动特性的数值模拟[J].煤矿机械,2018,39(2):129-131.
[11] 高南京,董一良,苗润晗,等.中心正交旋转管内流动沸腾特性的数值模拟研究[J].中国电机工程学报,2019,39(18):5442-5448.
[12] LIANG Jian, LUO Xiaohui, LIU Yinshui, et al. A Numerical Investigation in Effects of Inlet Pressure Fluctuations on the Flow and Cavitation Characteristics Inside Water Hydraulic Poppet Valves[J]. International Journal of Heat and Mass Transfer, 2016, 103:684-700.
[13] LU Liang, XIE Shuaihu, YIN Yaobao, et al. Experimental and Numerical Analysis on the Surge Instability Characteristics of the Vortex Flow Produced Large Vapor Cavity in u-Shape Notch Spool Valve[J]. International Journal of Heat and Mass Transfer, 2020, 146: 1-19.
[14] RAMANUJ VIMAL, STARCHENKO VITALII, SANKARAN RAMANAN, et al. Characteristics of Flow Through Randomly Packed Impermeable and Permeable Particles Using Pore Resolved Simulations[J]. Chemical Engineering, 2020, 228: 115969.
[15] KIM SANGJO, KIM KUISOON, SON CHANGMIN. Three-Dimensional Unsteady Simulation of a Multistage Axial Compressor With Labyrinth Seals and Its Effects on Overall Performance and Flow Characteristics[J]. Aerospace Science and Technology, 2019, 86: 683-693.
[16] 孙晓茗,项光明,姚强,等.电除尘器改造为布袋除尘器时的流场数值计算[J].热力发电,2005,34(7):19-21.
[17] 顾红芳,王海军,张喆,等.1000MW机组直接空冷系统排气管道流动特性[J].热力发电,2016,45(5):21-26.
[18] XIE Haibo, TAN Li, LIU Jianbin, et al. Numerical and Experimental Investigation on Opening Direction Steady Axial Flow Force Compensation of Converged Flow Cartridge Proportional Valve[J]. Flow Measurement and Instrumentation, 2018(62): 123-134.

某DN 1 500烟气挡板流量特性的数值模拟

Numerical Simulation of Flow Characteristics of a DN 1 500 Flue Gas Damper

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