转炉蒸发冷却器换热效率数值模拟

删除或更新信息，请邮件至freekaoyan#163.com(#换成@)

本站小编 Free考研考试/2022-01-01

李海英，刘东*，张春奇，刘良旭，王晓波

华北理工大学冶金与能源学院，现代冶金技术教育部重点实验室，河北唐山 063210

收稿日期:2018-07-02修回日期:2018-10-12出版日期:2019-06-22发布日期:2019-06-20
通讯作者:刘东

基金资助:河北省科技计划资助项目

Numerical simulation of heat exchange efficiency of evaporative cooler

Haiying LI, Dong LIU*, Chunqi ZHANG, Liangxu LIU, Xiaobo WANG

Key Laboratory of Ministry of Education for Modern Metallurgy Technology, College of Metallurgy and Energy, North China University of Science and Technology, Tangshan, Hebei 063210, China

Received:2018-07-02Revised:2018-10-12Online:2019-06-22Published:2019-06-20

摘要/Abstract

摘要： 基于国内某钢厂65 t转炉蒸发冷却器运行参数，采用CFD方法的离散相模型模拟了蒸发冷却器内雾化液滴与高温烟气间的换热效率，考察了单个液滴粒径、雾化液滴粒径分布对换热效率的影响。结果表明，模拟结果与实际运行参数吻合较好，计算的出口温度为468 K，实际为483 K，相对误差为3.1%，模型可靠。粒径小于300 μm的雾滴均能在0.62 s内蒸发完全，不同粒径的雾滴完全蒸发所需时间最高相差20多倍。液滴与高温烟气的换热效率受粒径分布影响较大，中位粒径d50=340 ?m和d50=95 ?m的雾滴在同一截面的平均温度可相差70 K。烟气温度下降先快后慢，最后趋于平稳，烟气主要降温区域为喷嘴下游3.5 m内。

引用本文

李海英刘东张春奇刘良旭王晓波. 转炉蒸发冷却器换热效率数值模拟[J]. 过程工程学报, 2019, 19(3): 492-499.
Haiying LI Dong LIU Chunqi ZHANG Liangxu LIU Xiaobo WANG. Numerical simulation of heat exchange efficiency of evaporative cooler[J]. Chin. J. Process Eng., 2019, 19(3): 492-499.

使用本文

0
/ / 推荐
导出引用管理器 EndNote|Ris|BibTeX
链接本文:http://www.jproeng.com/CN/10.12034/j.issn.1009-606X.218239
http://www.jproeng.com/CN/Y2019/V19/I3/492

参考文献

[1] 张福明，张德国，张凌义，等. 大型转炉煤气干法除尘技术研究与应用 [J]. 钢铁, 2013, 48(2): 1-9.
Zhang F M, Zhang M G, Zhang L Y, et al. Research and application on large BOF gas dry dedusting technology [J]. Iron & Steel, 2013, 48(2): 1-9．
[2] JM Wu, X Huang, H Zhang. Numerical investigation on the heat and mass transfer in a direct evaporative cooler [J]. Applied Thermal Engineering, 2009, 29(1): 195-201.
[3] 冉景煜，张志荣. 不同物性液滴在低温烟气中的蒸发特性数值研究 [J]. 中国电机工程学报, 2010, 30(26): 62-68.
Ran J Y, Zhang Z R. Numerical Study on Evaporation Characteristics of Different Substance Droplet in Low Temperature Flue Gas [J]. Proceedings of the CSEE, 2010, 30(26): 62-68.
[4] 黄小萍，钱付平，王来勇，等. 转炉一次除尘新OG系统高效喷淋塔喷嘴雾化特性的数值模拟 [J]. 过程工程学报, 2018, 18(3): 461-468.
Huang X P, Qian F P, Wang L Y, et, al. Numerical Simulation of Atomization Characteristics in High Efficient Spray Tower Nozzle of New OG System of the Primary Dedusting System for Converter [J]. The Chinese Journal of Process Engineering, 2018, 18(3): 461-468.
[5] 高继慧，陈国庆，高建民，等. 半干法压力旋流式喷嘴雾化性能数值模拟 [J]. 哈尔滨工业大学学报, 2010, 42(3): 437-441．
Gao J H, Chen G Q, Gao J M, et, al. Numerical simulation on atomizing performance of pressure swirl nozzle for semi-drying FGD [J]. Journal of Harbin Institute of Technology, 2010, 42(3): 437-441．
[6] 周正，吴畏，郑昕，等. 喷嘴雾化特性及脱硫废水蒸发数值模拟 [J]. 化工进展, 2018, 37(1): 32-38.
Zhou Z, Wu W, Zheng X, et, al. Experimental research on spray characteristics of nozzle and numerical simulation of desulfurization wastewater evaporation [J]. CHEMICAL INDUSTRY AND ENGINEERING PROGRESS, 2018, 37(1): 32-38.
[7] Dushin V R, Kulchitskiy A V, Nerchenko V A, et, al. Mathematical simulation for non-equilibrium droplet evaporation [J]. Acta Astronautica, 2008, 63(11–12): 1360-1371.
[8] 辛娟娟，周致富，辛慧，等. 单个液滴蒸发模型中不同质量传递公式的有效性分析 [J]. 化工学报, 2012, 63(6): 1704-1708.
Xin J J, Zhou Z F, Xin H, et, al. Validation analysis of different mass transfer formula in single droplet evaporation model [J]. CIESC Journal, 2012, 63(6): 1704-1708.
[9] ZY Jiang, PY Chen, P Liu, et, al. Numerical simulation and structure optimization of converter gas evaporative cooler [C]. Proceedings of the ASME Heat Transfer Summer Conference, HT2013-17101.
[10] Ochowiak M, Matuszak M, W?odarczak S, et, al. The concept design and study of twin-fluid effervescent atomizer with air stone aerator [J]. Chemical Engineering & Processing Process Intensification, 2018, 124: 24-28.
[11] Ramamurthi K, Sarkar U K, Raghunandan B N. Performance characteristics of effervescent atomizer in different flow regimes [J]. Atomization & Sprays, 2009, 19(1): 41-56.
[12] Gadgil H P, Raghunandan B N. Some features of spray breakup in effervescent atomizers [J]. Experiments in Fluids, 2011, 50(2): 329-338.

相关文章 15

[1]	何星晨王娟张佳万加亿王江云毛羽. 多组扭曲片排布方式对乙烯裂解炉管内产物收率的影响[J]. 过程工程学报, 2021, 21(4): 401-409.
[2]	周小宾彭世恒刘勇王多刚. 废钢对转炉熔池流体流动影响研究[J]. 过程工程学报, 2021, 21(4): 410-419.
[3]	郭栋梁海峰. 气液混合式撞击流反应器流场特性数值模拟[J]. 过程工程学报, 2021, 21(3): 277-285.
[4]	王珂张引弟王城景辛玥. CH₄掺混H₂的燃烧数值模拟及掺混比合理性分析[J]. 过程工程学报, 2021, 21(2): 240-250.
[5]	史怡坤李瑞江朱学栋方海灿朱子彬. 真空变压吸附制氧径向流吸附器的流动特性模拟[J]. 过程工程学报, 2021, 21(1): 18-26.
[6]	杨会朱辉陈永平付海明. 滑移效应下纤维绕流场及过滤阻力的数值计算与分析[J]. 过程工程学报, 2021, 21(1): 36-45.
[7]	岳高伟万重重王路李彦兵. 玻璃钢化淬冷降温特征及影响因素[J]. 过程工程学报, 2020, 20(8): 947-958.
[8]	屈雪婧安敏管小平杨宁孙国刚. 气液鼓泡塔的CFD-PBM耦合模拟：离散法与QMOM方法的对比[J]. 过程工程学报, 2020, 20(7): 788-797.
[9]	王志敏谢峻林梅书霞何峰金明芳. 浮法玻璃熔窑火焰空间石油焦部分替代重油燃烧的数值模拟[J]. 过程工程学报, 2020, 20(6): 737-744.
[10]	王娟何星晨李军万加亿邹槊徐皓晗. 开口扭曲片圆管强化传热与流动阻力特性模拟[J]. 过程工程学报, 2020, 20(5): 510-520.
[11]	王志奇邹玉洁刘柏希张振康. 热风循环隧道烘箱的流场模拟及结构优化[J]. 过程工程学报, 2020, 20(5): 531-539.
[12]	张宇田丽亭岳小棚王坤. 槽式太阳能集热管内相变微胶囊悬浮液的热力性能分析[J]. 过程工程学报, 2020, 20(3): 276-284.
[13]	王娟李军高助威何星晨邹槊万加亿. 热风混合器内部流场的数值模拟与结构改进[J]. 过程工程学报, 2020, 20(2): 148-157.
[14]	吴仲达游永华王盛张壮周思凯戴方钦易正明. 扩缩方孔蜂窝蓄热体强化传热的数值模拟[J]. 过程工程学报, 2020, 20(12): 1416-1423.
[15]	卢金霖张东升罗志国邹宗树. 旋流中间包夹杂物碰撞去除的数值模拟[J]. 过程工程学报, 2020, 20(12): 1432-1438.

PDF全文下载地址:

http://www.jproeng.com/CN/article/downloadArticleFile.do?attachType=PDF&id=3279