导向管直径对喷动床流动特性影响的计算颗粒流体力学数值模拟

doi:10.16085/j.issn.1000-6613.2017-0772

化工进展 ›› 2018, Vol. 37 ›› Issue (01): 14-22.DOI: 10.16085/j.issn.1000-6613.2017-0772

导向管直径对喷动床流动特性影响的计算颗粒流体力学数值模拟

张立栋, 王子嘉, 李少华, 王擎, 秦宏

东北电力大学油页岩综合利用教育部工程研究中心, 吉林吉林 132012

收稿日期:2017-04-27 修回日期:2017-06-19 出版日期:2018-01-05 发布日期:2018-01-05
通讯作者: 张立栋(1980-),男,博士,副教授,主要研究方向为油页岩综合利用及回转装置混合和分离。
作者简介:张立栋(1980-),男,博士,副教授,主要研究方向为油页岩综合利用及回转装置混合和分离。E-mail:nedu1015@aliyun.com。
基金资助:
教育部长江学者和创新团队发展计划（IRT-17R19）、吉林省自然科学基金（20150101033JC）、吉林市科技计划（201464044）及吉教科合字2015-237项目。

Simulation for effects of draft tube diameter on flow characteristics in a spouted bed using computational particle fluid dynamics (CPFD) method

ZHANG Lidong, WANG Zijia, LI Shaohua, WANG Qing, QIN Hong

Engineering Research Centre of Ministry of Education for Comprehensive Utilization of Oil Shale, Northeast Electric Power University, Jilin 132012, Jilin, China

Received:2017-04-27 Revised:2017-06-19 Online:2018-01-05 Published:2018-01-05

摘要/Abstract

摘要： 导向管喷动床是较为常见的一种喷动床改进床型，通过阻断喷动区与环隙区气固接触来提高颗粒循环的规律性与稳定性。本文采用计算颗粒流体力学（CPFD）方法对于直径150mm的柱锥式导向管喷动床进行了数值模拟研究，考察了导向管直径对于喷动床内颗粒流动特性的影响，从环隙区死区分布、颗粒速度分布、固体循环量等方面分析了具有不同直径导向管喷动床的运行状态。结果表明，加入导向管在减少床内死区的同时也降低了运行时的固体循环量，对于本次采用的喷动床结构尺寸与运行参数，只有在导向管直径为40～60mm时才能保证床内具有良好喷动状态，综合考虑各因素，选用直径50～55mm的导向管最为合适。对于具有类似结构与运行条件的柱锥喷动床，导向管直径可考虑选为无导向管运行时喷动区直径的1.2～1.375倍。

关键词: 喷动床, 数值模拟, 导向管, 颗粒流, 颗粒物料

Abstract: The spouted bed with draft tube is a kind of improved structure of spouted bed, which can improve the regularity and stability of spouting process by blocking the gas-solid contact between spray area and annulus. This paper carried out the numerical simulation for a 150mm diameter spouted bed using computational particle fluid dynamics (CPFD)method. The effects of draft tube diameter on flow characteristics was investigated from the dead zone of the annulus, particle velocity distribution and solid circulating rate. Results show that the draft tube reduced bed dead zone and solid circulating rate. For this spouted bed structure and operation parameters, only 40-60mm draft tube diameter can ensure the bed has a good spouting state, and 50-55mm draft tube is most appropriate. For a spouted bed with similar structure, the draft tube diameter should be selected as 1.25-1.375 times as the spray area diameter of spouting without draft tube.

Key words: spouted bed, numerical simulation, draft tube, granular flow, granular materials

中图分类号:

TQ051

张立栋, 王子嘉, 李少华, 王擎, 秦宏. 导向管直径对喷动床流动特性影响的计算颗粒流体力学数值模拟[J]. 化工进展, 2018, 37(01): 14-22.

ZHANG Lidong, WANG Zijia, LI Shaohua, WANG Qing, QIN Hong. Simulation for effects of draft tube diameter on flow characteristics in a spouted bed using computational particle fluid dynamics (CPFD) method[J]. Chemical Industry and Engineering Progress, 2018, 37(01): 14-22.

参考文献

[1] MATHUR K B, EPSTEIN N. Spouted beds[M]. Pittsburgh:Academic Press,1974
[2] 金涌. 流态化工程原理[M]. 北京:清华大学出版社,2002. JIN Y. Fluidization engineering principles[M]. Beijing:Tsinghua University Press,2002.
[3] 张少峰,赵卷,张占锋,等. 喷动床技术在烟气脱硫中的应用及最新进展[J]. 化工进展,2004,23(2):162-167. ZHANG S F,ZHAO J,ZHANG Z F,et al. Application and new development of spouted bed technique in flue gas desulfurization[J]. Chemical Industry and Engineering Progress,2004,23(2):162-167.
[4] 谢恒来,吴曼,赵军,等. 导向管喷动流化床中废弃印刷线路板的非金属颗粒包覆改性[J]. 化工学报,2015,66(3):1185-1193. XIE H L,WU M,ZHAO J,et al. Coating modification of non-metal particles of waste printed circuit boards in spout-fluid bed with draft tube[J]. CIESC Journal,2015,66(3):1185-1193.
[5] OLAZAR M,LOPEZ G,ALTZIBAR H,et al. Drying of biomass in a conical spouted bed with different types of internal devices[J]. Drying Technology,2012,30(2):207-216.
[6] QIN H,YANG K,SUN B Z,et al. Experimental study on spouted bed hydrodynamics for oil shale semi-coke[J]. Energy Procedia,2012,17:1740-1746.
[7] 秦宏,马佳波,刘洪鹏,等. 500t/d油页岩干馏系统的半焦燃烧输送数值模拟[J]. 东北电力大学学报,2013,33(5):1-5. QIN H,MA J B,LIU H P,et al. Numerical simulation on combustion and transportation of semi-coke in the 500t/d oil shale retorting system[J]. Journal of Northeast Dianli University,2013,33(5):1-5.
[8] 张东利,张维蔚,张晓蕾,等. 带导流管的喷动流化床的研究进展[J]. 化工进展,2005,24(5):506-509. ZHANG D L,ZHANG W W,ZHANG X L,et al. Applied research on spout-fluidized bed with draft-tube[J]. Chemical Industry and Engineering Progress,2005,24(5):506-509.
[9] LEVENSPIEL O. Fluidization engineering[M]. New York:John Wiley & Sons,1969.
[10] 陆勇,钱龙,钟文琪,等. 气固两相流颗粒相特性参数的测量及其不确定分析[J]. 工程热物理学报,2015,36(7):1481-1486. LU Y,QIAN L,ZHONG W Q,et al. Measurement and uncertainty analysis of the particle phase characteristics in a gas-solid flow[J]. Journal of Engineering Thermophysics,2015,36(7):1481-1486.
[11] 张瑞卿,杨海瑞,吕俊复. 应用于循环流化床锅炉气固流动和燃烧的CPFD数值模拟[J]. 中国电机工程学报,2013,33(23):75-83. ZHANG R Q,YANG H R,LV J F. Application of CPFD approach on gas-solid flow and combustion in industrial CFB boilers[J]. Proceedings of the CSEE,2013,33(23):75-83.
[12] WANG Q G,YANG H Y,WANG P N,et al. Application of CPFD method in the simulation of a circulating fluidized bed with a loop seal. Part Ⅰ-Determination of modeling parameters[J]. Powder Technology,2014,253:814-821.
[13] WANG Q G,YANG H Y,WANG P N,et al. Application of CPFD method in the simulation of a circulating fluidized bed with a loop seal. Part Ⅱ-Investigation of solids circulation[J]. Powder Technology,2014,253:822-828.
[14] ABBASI A,EGE P E,LASA H I D. CPFD simulation of a fast fluidized bed steam coal gasifier feeding section[J]. Chemical Engineering Journal,2011,174(1):341-350.
[15] FOTOVAT F,ABBASI A,SPITERI R J,et al. A CPFD model for a bubbly biomass-sand fluidized bed[J]. Powder Technology,2015,275:39-50.
[16] SNIDER D M. An incompressible three-dimensional multiphase particle-in-cell model for dense particle flows[J]. Journal of Computational Physics,2001,170(2):523-549.
[17] SNIDER D M,CLARK S M,ROURKE P J O. Eulerian-Lagrangian method for three-dimensional thermal reacting flow with application to coal gasifiers[J]. Chemical Engineering Science,2011,66(6):1285-1295.
[18] PARKER J,LAMARCHE K,CHEN W,et al. CFD simulations for prediction of scaling effects in pharmaceutical fluidized bed processors at three scales[J]. Powder Technology,2013,235:115-120.
[19] SNIDER D M. Three fundamental granular flow experiments and CPFD predictions[J]. Powder Technology,2007,176(1):36-46.
[20] ZOU L M,GUO Y C,CHAN C K. Cluster-based drag coefficient model for simulating gas-solid flow in a fast-fluidized bed[J]. Chemical Engineering Science,2008,63(4):1052-1061.
[21] AUZERAIS F M,JACKSON R,RUSSEL W B. The resolution of shocks and the effects of compressible sediments in transient settling[J]. Journal of Fluid Mechanics,1988,195:437-462.
[22] ZHANG L D,WANG Z J,WANG Q,et al. Simulation of oil shale semi-coke particle cold transportation in a spouted bed using CPFD method[J]. Powder Technology,2016,301:360-368.

导向管直径对喷动床流动特性影响的计算颗粒流体力学数值模拟

Simulation for effects of draft tube diameter on flow characteristics in a spouted bed using computational particle fluid dynamics (CPFD) method

PDF (PC)

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 15

编辑推荐

Metrics

本文评价

[1]	郭强, 赵文凯, 肖永厚. 增强流体扰动强化变压吸附甲硫醚/氮气分离的数值模拟[J]. 化工进展, 2023, 42(S1): 64-72.
[2]	邵博识, 谭宏博. 锯齿波纹板对挥发性有机物低温脱除过程强化模拟分析[J]. 化工进展, 2023, 42(S1): 84-93.
[3]	王太, 苏硕, 李晟瑞, 马小龙, 刘春涛. 交流电场中贴壁气泡的动力学行为[J]. 化工进展, 2023, 42(S1): 133-141.
[4]	陈匡胤, 李蕊兰, 童杨, 沈建华. 质子交换膜燃料电池气体扩散层结构与设计研究进展[J]. 化工进展, 2023, 42(S1): 246-259.
[5]	刘炫麟, 王驿凯, 戴苏洲, 殷勇高. 热泵中氨基甲酸铵分解反应特性及反应器结构优化[J]. 化工进展, 2023, 42(9): 4522-4530.
[6]	赵曦, 马浩然, 李平, 黄爱玲. 错位碰撞型微混合器混合性能的模拟分析与优化设计[J]. 化工进展, 2023, 42(9): 4559-4572.
[7]	叶振东, 刘涵, 吕静, 张亚宁, 刘洪芝. 基于钙镁二元盐的热化学储能反应器的性能优化[J]. 化工进展, 2023, 42(8): 4307-4314.
[8]	俞俊楠, 俞建峰, 程洋, 齐一搏, 化春键, 蒋毅. 基于深度学习的变宽度浓度梯度芯片性能预测[J]. 化工进展, 2023, 42(7): 3383-3393.
[9]	单雪影, 张濛, 张家傅, 李玲玉, 宋艳, 李锦春. 阻燃型环氧树脂的燃烧数值模拟[J]. 化工进展, 2023, 42(7): 3413-3419.
[10]	王硕, 张亚新, 朱博韬. 基于灰色预测模型的水煤浆输送管道冲蚀磨损寿命预测[J]. 化工进展, 2023, 42(7): 3431-3442.
[11]	周龙大, 赵立新, 徐保蕊, 张爽, 刘琳. 电场-旋流耦合强化多相介质分离研究进展[J]. 化工进展, 2023, 42(7): 3443-3456.
[12]	卢兴福, 戴波, 杨世亮. 转鼓内圆柱形颗粒混合的超二次曲面离散单元法模拟[J]. 化工进展, 2023, 42(5): 2252-2261.
[13]	齐承鲁, 张忠良, 王明超, 李耀鹏, 宫晓辉, 孙鹏, 郑斌. 内置管束布置对换热器内固体颗粒流动的影响[J]. 化工进展, 2023, 42(5): 2306-2314.
[14]	张晨宇, 王宁, 徐洪涛, 罗祝清. 纳米颗粒强化传热的多级潜热储热器性能评价[J]. 化工进展, 2023, 42(5): 2332-2342.
[15]	马润梅, 杨海超, 李正大, 李双喜, 赵祥, 章国庆. 表面强化镀层对高速轴承腔密封端面变形及摩擦磨损影响分析[J]. 化工进展, 2023, 42(4): 1688-1697.