化工学报 ›› 2019, Vol. 70 ›› Issue (7): 2472-2479.DOI: 10.11949/0438-1157.20190013
收稿日期:
2019-01-04
修回日期:
2019-04-15
出版日期:
2019-07-05
发布日期:
2019-07-05
通讯作者:
罗正鸿
作者简介:
马旺宇(1995—),男,硕士研究生,<email>1017540809@qq.com</email>
基金资助:
Received:
2019-01-04
Revised:
2019-04-15
Online:
2019-07-05
Published:
2019-07-05
Contact:
Zhenghong LUO
摘要:
采用理论推导和经验公式相结合方法,建立了Geldart-B类颗粒在流化床中流化过程的床层膨胀比(R)的通式,并在全取值范围内构建了床层膨胀比的收敛迭代公式。采用不同颗粒的流化实验数据对上述通式(模型)进行了验证,结果表明该模型很好地预测了床层膨胀比。进一步讨论了床层膨胀比与鼓泡流化流型变化之间的关系,给出了临界膨胀比的取值规律。有关床层膨胀比的研究结果一定程度上可有效改善流化床的监控,优化操作条件选取。
中图分类号:
马旺宇, 罗正鸿. Geldart-B类颗粒在气固流化床中的床层膨胀与流型转变[J]. 化工学报, 2019, 70(7): 2472-2479.
Wangyu MA, Zhenghong LUO. Bed expansion and fluidized states change of Geldart-B particle gas-solid fluidized bed[J]. CIESC Journal, 2019, 70(7): 2472-2479.
Rαmf取值 | 非整次项化简 / 迭代公式 |
---|---|
表1 式(11)中的非整次项化简以及收敛的迭代公式
Table 1 Non-integral simplifications for calculating expansion ratio and iterative formula for convergence
Rαmf取值 | 非整次项化简 / 迭代公式 |
---|---|
1 | 郑晓野, 蒲文灏, 岳晨, 等. 采用改进的曳力模型模拟 2D 鼓泡流化床的流化特性[J]. 过程工程学报, 2015, 15(5): 737-743. |
ZhengX Y, PuW H, YueC, et al. A modified drag model used for CFD simulation on the fluidization characteristics of 2D bubbling fluidized bed[J]. The Chinese Journal of Process Engineering, 2015, 15(5): 737-743. | |
2 | 曾涛, 柳忠彬, 黄卫星, 等. 方形气固流化床从鼓泡到湍动流态化转变速度预测模型[J]. 过程工程学报, 2011, 11(3): 376-379. |
ZengT, LiuZ B, HuangW X, et al. Prediction model of transition velocity from bubbling to turbulent fluidization in a square gas-solid fluidized bed[J]. The Chinese Journal of Process Engineering, 2011, 11(3): 376-379. | |
3 | 王维, 王璐瑶, 许英梅, 等. 流化床氛围下多孔物料干燥传热传质的数值模拟[J]. 化工学报, 2012, 63(4): 1044-1049. |
WangW, WangL Y, XuY M, et al. Numerical simulation on porous material drying with fluidized bed[J]. CIESC Journal, 2012, 63(4): 1044-1049. | |
4 | 杨秀娟, 阎维平. 烟气流态化褐煤干燥与非稳态传热传质过程研究[J]. 热力发电, 2018, (4): 1-8. |
YangX J, YanW P. Study on the process of the flue gas fluidized lignite drying and unsteady heat and mass transfer[J]. Thermal Power Generation, 2018, (4): 1-8. | |
5 | 张健平, 赵周能. 油菜籽流化床恒速干燥传热传质特性及模型研究[J]. 农业工程学报, 2017, 33(13): 287-295. |
ZhangJ P, ZhaoZ N. Heat and mass transfer characteristics and model of rapeseed (Bassica rapus) fluidized-bed drying with constant drying rate [J]. Transactions of the Chinese Society of Agricultural Engineering, 2017, 33(13): 287-295. | |
6 | 陈程, 祁海鹰. EMMS曳力模型及其颗粒团模型的构建和检验[J]. 化工学报, 2014, 65(6): 2003-2012. |
ChenC, QiH Y. Development and validation of cluster and EMMS drag model[J]. CIESC Journal, 2014, 65(6): 2003-2012. | |
7 | 王会宁, 丁建亮. 流化床烟气脱硫反应器内气固流场数值模拟与分析[J]. 节能技术, 2014, 32(4): 324-326. |
WangH N, DingJ L. Analyses and simulation of hydrodynamics of gas and particles in fluidized bed flue gas desulphurization towers[J]. Energy Conservation Technology, 2014, 32(4): 324-326. | |
8 | 吕小林. 基于气泡和聚团的结构模型及其应用[J]. 化工进展, 2017, 36(11): 64-72. |
LyuX L. Structural model based on bubbles and clusters and its applications[J]. Chemical Industry and Engineering Progress, 2017, 36(11): 64-72. | |
9 | 周勇, 高凯歌, 李海念, 等. 超细颗粒流化聚团尺寸的预测模型[J]. 中国粉体技术, 2017, (5): 7-12. |
ZhouY, GaoK G, LiH N, et al. Models for estimating agglomerate size of ultrafine particles in fluidized beds[J]. China Powder Science and Technology, 2017, (5): 7-12. | |
10 | 朱育丹, 陆小华, 郭晓静, 等. 材料化学工程科学内涵及方法初探: 从介观尺度界面流体行为出发认知材料[J]. 化工学报, 2013, 64(1): 148-154. |
ZhuY D, LuX H, GuoX J, et al. Preliminary discussion on scientific connotation and research method of aterial-oriented chemical engineering: understanding materials based on confined interfacial fluid behavior on mesoscale[J]. CIESC Journal, 2013, 64(1): 148-154. | |
11 | 金余其, 王彬全, 万嘉瑜, 等. 基于介观尺度模拟的污泥絮凝形态及机理[J]. 化工学报, 2010, 61(3): 725-731. |
JinY Q, WangB Q, WanJ Y, et al. Morphology and mechanism of sludge flocculation based on mesoscopic simulation[J]. CIESC Journal, 2010, 61(3): 725-731. | |
12 | 高智雪, 郝振华. 加压二维鼓泡床气固流动特性的数值模拟[J]. 煤炭转化, 2018, (2): 44-50. |
GaoZ X, HaoZ H. Numerical simulation on gas-solid flow characteristics of a 2D pressurized bubbling fluidized bed[J]. Coal Conversion, 2018, (2): 44-50. | |
13 | 张长练, 曾涛, 刘少北, 等. 循环湍动流化床的提升管内FCC颗粒流动特性的数值模拟[J]. 科技通报, 2018, 34(4): 109-117. |
ZhangC L, ZengT, LiuS B, et al. Numerical simulation of the flow characteristics of FCC particles in the circulation turbulent fluidized bed[J]. Bulletin of Science and Technology, 2018, 34(4): 109-117. | |
14 | 杨新, 闫俊伏, 麻哲瑞, 等. 双循环流化床石英砂颗粒流动特性研究[J]. 华北电力大学学报(自然科学版), 2018, (3): 81-87. |
YangX, YanJ F, MaZ R, et al. Study on flow characteristics of quartz sand particles in dual circulating fluidized bed[J]. Journal of North China Electric Power University(Natural Science Edition), 2018, (3): 81-87. | |
15 | 黄克松, 赵晓军, 杨敬一, 等. 加压条件下气固流化床流动特性的CFD模拟研究[J]. 计算机与应用化学, 2014, 31(2): 181-184. |
HuangK S, ZhaoX J, YangJ Y, et al. The CFD simulation study of flow characteristics of three dimension flow in a fluidized bed reactor at elevated pressure[J]. Computers and Applied Chemistry, 2014, 31(2): 181-184. | |
16 | 黄克松, 赵晓军, 杨敬一, 等. 加压条件下气固流化床计算流体力学模型的建立[J]. 计算机与应用化学, 2013, (12): 1417-1421. |
HuangK S, ZhaoX J, YangJ Y, et al. The establish of computational fluid dynamics model for three dimension flow in a gas solid fluidized-bed reactor at elevated pressure[J]. Computers and Applied Chemistry, 2013, (12): 1417-1421. | |
17 | 李占勇, 王少铁, 王娟, 等. 狭缝型分布板流化床提高核桃壳颗粒的流化效果[J]. 农业工程学报, 2016, 32(9): 225-232. |
LiZ Y, WangS T, WangJ, et al. Fluidization effect of walnut shell particles in fluidized bed with slotted gas distributor [J]. Transactions of the Chinese Society of Agricultural Engineering, 2016, 32(9): 225-232. | |
18 | 李占勇, 王少铁, 刘品达, 等. Geldart D类颗粒在狭缝型分布板流化床的流化特性研究[J]. 天津科技大学学报, 2016, 31(4): 56-59. |
LiZ Y, WangS T, LiuP D, et al. Fluidization characteristics of Geldart D type particles in a fluidizing bed with a slotted gas distributor[J]. Journal of Tianjin University of Science & Technology, 2016, 31(4): 56-59. | |
19 | WangZ J, TangJ, LuC X. Fluidization characteristics of different sizes of quartz particles in the fluidized bed[J]. Petroleum Science, 2016, 13(3): 584-591. |
20 | 吕鹏, 赵跃民. 空气重介质流化床高对流化特性影响[J]. 煤炭技术, 2016, 35(7): 296-299. |
LyuP, ZhaoY M. Effect of bed height on fluidization characteristics of air dense medium fluidized bed[J]. Coal Technology, 2016, 35(7): 296-299. | |
21 | 谭明兵, 贺靖峰, 邵换男, 等. 次生布风条件下气固重介质流化床褐煤分选提质研究[J]. 中国矿业大学学报, 2017, 46(2): 404-409. |
TanM B, HaoJ F, ShaoH N, et al. Lignite separation using a gas-solid dense medium fluidized bed with a secondary air distribution layer[J]. Journal of China University of Mining & Technology, 2017, 46(2): 404-409. | |
22 | GeldartD. Expansion of gas fluidized beds[J]. Ins. Eng. Chem. Res., 2004, 43(18): 5802-5809. |
23 | PetersM H, FanL S, SweeneyT L. Reactant dynamics in catalytic fluidized bed reactors with flow reversal of gas in the emulsion phase [J]. Chemical Engineering Science, 1982, 37(4): 553-565. |
24 | WertherJ. Fluidization Ⅳ [M]. Kunii D, Toei R, Eds. New York: Engineering Foundation, 1983: 93. |
25 | DartonR C, LaNauzeR D, DavidsonJ F, et al. Bubble growth due to coalescence in fluidized beds[J]. Trans. Ins. Chem. Eng., 1977, 55(4): 274-280. |
26 | BaeyensJ, GeldartD. Gas Fluidization Technology[M]. Chichester: John Wiley & Sons, 1986: 105. |
27 | WertherJ. Effect of gas distributor on the hydrodynamics of gas fluidized beds[J]. German Chemical Engineering, 1978, 1: 166-174. |
28 | KuniiD, LevenspielO. Fluidization Engineering [M].Oxford: Butterworth-Heinemann Limited Press, 1991. |
29 | 付芝杰. 气固分选流化床两相分布及密度调控机制研究[D]. 北京: 中国矿业大学, 2017. |
FuZ J. Research on the mechanism of two-phase distribution and density regulation of separating gas-solid fluidized bed[D]. Beijing: China University of Mining and Technology, 2017. | |
30 | DubrawskiK, TebianianS, BiH T, et al. Traveling column for comparison of invasive and non-invasive fluidization voidage measurement techniques[J]. Powder Technology, 2013, 235(2): 203-220. |
31 | FengR, LiJ, ChengZ, et al. Influence of particle size distribution on minimum fluidization velocity and bed expansion at elevated pressure[J]. Powder Technology, 2017, 320: 27-36. |
32 | BabuS P, ShahB, TalwalkarA. Fluidization correlations for coal gasification materials—minimum fluidization velocity and fluidized bed expansion ratio[J]. AIChE Symp. Ser., 1978, 74(176): 176. |
33 | GunnD J, HilalN. The expansion of gas-fluidised beds in bubbling fluidisation[J]. Chemical Engineering Science, 1997, 52(16): 2811-2822. |
34 | ZhuL T, TahaA B R, LuoZ H. Comprehensive validation analysis of sub-grid drag and wall corrections for coarse-grid two-fluid modeling[J]. Chemical Engineering Science, 2019, 196: 478-492. |
35 | ZhuL T, LiuY X, LuoZ H. An effective three-marker drag model via sub-grid modeling for turbulent fluidization[J]. Chemical Engineering Science, 2018, 192: 759-773. |
36 | BiH T, FanL S. Regime transition in gas-solid circulating fluidized bed[C]//AIChE Annual Meeting. LA, 1991: 17-22. |
37 | BaiD, JinY, YuZ. Flow regimes in circulating fluidized beds[J]. Chemical Engineering and Technology, 1993, 16(5): 307-313. |
[1] | 周绍华, 詹飞龙, 丁国良, 张浩, 邵艳坡, 刘艳涛, 郜哲明. 短管节流阀内流动噪声的实验研究及降噪措施[J]. 化工学报, 2023, 74(S1): 113-121. |
[2] | 江河, 袁俊飞, 王林, 邢谷雨. 均流腔结构对微细通道内相变流动特性影响的实验研究[J]. 化工学报, 2023, 74(S1): 235-244. |
[3] | 肖明堃, 杨光, 黄永华, 吴静怡. 浸没孔液氧气泡动力学数值研究[J]. 化工学报, 2023, 74(S1): 87-95. |
[4] | 温凯杰, 郭力, 夏诏杰, 陈建华. 一种耦合CFD与深度学习的气固快速模拟方法[J]. 化工学报, 2023, 74(9): 3775-3785. |
[5] | 王玉兵, 李杰, 詹宏波, 朱光亚, 张大林. R134a在菱形离散肋微小通道内的流动沸腾换热实验研究[J]. 化工学报, 2023, 74(9): 3797-3806. |
[6] | 何松, 刘乔迈, 谢广烁, 王斯民, 肖娟. 高浓度水煤浆管道气膜减阻两相流模拟及代理辅助优化[J]. 化工学报, 2023, 74(9): 3766-3774. |
[7] | 袁佳琦, 刘政, 黄锐, 张乐福, 贺登辉. 泡状入流条件下旋流泵能量转换特性研究[J]. 化工学报, 2023, 74(9): 3807-3820. |
[8] | 高燕, 伍鹏, 尚超, 胡泽君, 陈晓东. 基于双流体喷嘴的磁性琼脂糖微球的制备及其蛋白吸附性能探究[J]. 化工学报, 2023, 74(8): 3457-3471. |
[9] | 邢雷, 苗春雨, 蒋明虎, 赵立新, 李新亚. 井下微型气液旋流分离器优化设计与性能分析[J]. 化工学报, 2023, 74(8): 3394-3406. |
[10] | 郭雨莹, 敬加强, 黄婉妮, 张平, 孙杰, 朱宇, 冯君炫, 陆洪江. 稠油管道水润滑减阻及压降预测模型修正[J]. 化工学报, 2023, 74(7): 2898-2907. |
[11] | 高金明, 郭玉娇, 鄂承林, 卢春喜. 一种封闭罩内顺流多旋臂气液分离器的分离特性研究[J]. 化工学报, 2023, 74(7): 2957-2966. |
[12] | 何宣志, 何永清, 闻桂叶, 焦凤. 磁液液滴颈部自相似破裂行为[J]. 化工学报, 2023, 74(7): 2889-2897. |
[13] | 牛超, 沈胜强, 杨艳, 潘泊年, 李熠桥. 甲烷BOG喷射器流动过程计算与性能分析[J]. 化工学报, 2023, 74(7): 2858-2868. |
[14] | 江锦波, 彭新, 许文烜, 门日秀, 刘畅, 彭旭东. 泵出型螺旋槽油气密封泄漏特性及参数影响研究[J]. 化工学报, 2023, 74(6): 2538-2554. |
[15] | 刘起超, 周云龙, 陈聪. 起伏振动垂直上升管气液两相流截面含气率分析与计算[J]. 化工学报, 2023, 74(6): 2391-2403. |
阅读次数 | ||||||||||||||||||||||||||||||||||||||||||||||||||
全文 277
|
|
|||||||||||||||||||||||||||||||||||||||||||||||||
摘要 709
|
|
|||||||||||||||||||||||||||||||||||||||||||||||||