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基于数字图像技术的垂直流化床气泡分析

, PP. 1268-1273

Keywords: 数字图像技术,流化床,气泡,上升,聚合

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Abstract:

通过高速摄影系统获得流化床内气固两相流图像，采用数字图像技术进行处理，进而得到垂直流化床中气泡上升过程中形状特性、运动轨迹和气泡面积变化规律，以及气泡聚合过程中形心位置和面积的变化规律。实验结果表明：气泡在上升过程中颗粒越小，空气压差越大，气泡越易呈现球帽状；气泡上升时呈现一定的螺旋上升特性，且空气压差越小，颗粒越大，螺旋性越明显；气泡聚合过程实际上是由于小气泡受大气泡吸引而成。

 References

[1]  郝晓刚, 石炎福, 余华瑞.气固流化床中气泡流运动特征和空隙率径向分布 [J]. 化工学报, 1998,49(3): 362--365
[2]  HAO Xiaogang，SHI Yanfu, YU Huarui. Flow Behavior of Bubble and Redial Porosity Distribution in Gas/Solid Fluidized Beds [J]. Journal of Chemical Industry and Engineering, 1998, 49(3):362--365
[3]  孙奇, 赵华, 杨瑞昌. 静止液相中气泡上升过程的分布特性 [J].化工学报, 2003, 54(9): 1311--1314
[4]  SUN Qi, ZHAO Hua, YANG Ruichang. Rising Bubble Distribution in Stagnant Liquid [J]. Journal of Chemical Industry and Engineering, 2003, 54(9): 1311--1314
[5]  沈雪松, 沈春银, 李光, 等. 大孔径高气速单孔气泡形成 [J].化工学报, 2008, 59(9): 2221--2225
[6]  SHEN Xuesong, SHEN Chunyin, LI Guang, et al. Bubble Formation from Large Submerged Single Orifice at High Gas Velocity [J]. Journal of Chemical Industry and Engineering, 2008, 59(9): 2221--2225
[7]  Antonio B, Giuseppa V, Giorgio M, et al．Analysis of the Bubbling Behavior of 2D Gas Fluidized Beds. Part I. Digital Image Analysis Technique [J]. Chemical Engineering Journal, 2008,140(1-3): 398--413
[8]  周云龙, 杨宁, 李洪伟, 等.变倾角柱锥体喷动床颗粒流速与浓度分布特性 [J]. 工程热物理学报,2014, 35(8): 1554--1558
[9]  ZHOU Yunlong, YANG Ning, LI Hongwei, et al. Investigation on Variable Inclination of Cone-Base Cylindrical Spouted Bed Velocity and Concentration Distribution Characteristics [J]. Journal of Engineering Thermophysics, 2014, 35(8): 1554--1558
[10]  顾汉洋, 郭烈锦, 张西民, 等.水平管内气液两相流中单气泡形态特征实验研究 [J]. 工程热物理学报,2006, 27(3): 432--436
[11]  GU Hanyang, GUO Liejin, ZHANG Ximin, et al. The Shape of Isolated Bubble in Intermittent Flows in Horizontal Straight Tube [J]. Journal of Engineering Thermophysics, 2006, 27(3): 432--436
[12]  王铁峰, 王金福, 杨卫国, 等.三相循环流化床中气泡上升速度的实验研究 [J]. 高校化学工程学报,2000, 14(4): 334--339
[13]  WANG Tiefeng, WANG Jinfu, YANG Weiguo, et al. Experimental Study on the Bubble Rise Velocity in Three-Phase Circulating Fluidized Beds [J]. Journal of Chemical Engineering of Chinese Universities, 2000, 14(4): 334--339
[14]  周云龙, 周红娟, 宋连壮, 等. 基于图像法的气液两相稀疏泡状流气泡参数分析 [J]. 核科学与工程, 2012, 32(2): 110--115
[15]  ZHOU Yunlong, ZHOU Hongjuan, SONG Lianzhuang, et al. Bubble Parameters Analysis of Gas-Liquid Two-Phase Sparse Bubbly Flow Based on Image Method [J]. Nuclear Science and Engineering, 2012,32(2): 110--115
[16]  常洋, 崔红, 张建生. 基于图像处理的模拟尾流气泡幕分类识别[J]. 光子学报, 2011, 40(7): 1066--1070
[17]  CHANG Yang, CUI Hong, ZHANG Jiansheng. SWBF Classification Based on BP Neural Network [J]. Acta Photonica Sinica, 2011, 40(7):1066--1070
[18]  罗娅, 马增益, 严建华, 等.图像法用于气固两相流化床中气泡行为的研究 [J]. 热力发电, 2005(1):15--19
[19]  LUO Ya, MA Zengyi, YAN Jianhua, et al. Study on Gas Bubbles' Behavior in Gas-Solid Two-Phase Fluidized Bed by Using Image Method [J]. Thermal Power Generation Publishing Department,2005(1): 15--19
[20]  Laihong S, Filip J, Bo L. Digital Image Analysis of Hydrodynamics Two-Dimensional Bubbling Fluidized Beds [J]. Chem Eng Sci, 2004, 59: 2607--2617
[21]  王乐乐, 雍晓东, 马倩, 等.图像处理技术在气泡特性研究中的应用 [J]. 四川大学学报, 2012, 44(2):188--192
[22]  WANG Lele, YONG Xiaodong, LI Ran, MA Qian. Image Processing Technology in the Application of Bubble Characteristics Research [J]. Journal of Sichuan University, 2012, 44(2): 188--192
[23]  杨华东. 颗粒测试的图像处理 [D]. 南京: 南京工业大学, 2005
[24]  YANG Huadong. Image Processing for Particle Measurement [D].Nanjing: Nanjing University of Technology, 2005
[25]  周云龙, 范振儒.流化床气固稀相流动体积空隙率的图像检测方法 [J].化学反应工程与工艺, 2009, 25(5): 433--436
[26]  ZHOU Yunlong, FAN Zhenru. Measurement Method of Volume Voidage in Dilute Gas-Solid Flow of Fluidized Bed Based on Image Processing [J]. Chemical Reaction Engineering and Technology, 2009, 25(5):433--436
[27]  周云龙, 宋连壮, 周红娟.基于图像处理的气固流化床中的气泡行为分析 [J]. 化工自动化及仪表,2011, 38(1): 60--64
[28]  ZHOU Yunlong, SONG Lianzhuang, ZHOU Hongjuan. Bubble Behavior Analysis in Gas-Solid Fluidized Bed Based on Image Processing Technology [J]. Control and Instruments in Chemical Industry,2011, 38(1): 60--64

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