滤袋数目对翼形上进风袋式除尘器内流场影响的数值模拟研究

唐奇; 李珊红; 李彩亭; 郭官清; 肖育军; 张玉歌

环境工程学报

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唐奇, 李珊红, 李彩亭, 郭官清, 肖育军, 张玉歌. 滤袋数目对翼形上进风袋式除尘器内流场影响的数值模拟研究[J]. 环境工程学报, 2014, 8(8): 3349-3354.

引用本文:

唐奇, 李珊红, 李彩亭, 郭官清, 肖育军, 张玉歌. 滤袋数目对翼形上进风袋式除尘器内流场影响的数值模拟研究[J]. 环境工程学报, 2014, 8(8): 3349-3354.

Tang Qi, Li Shanhong, Li Caiting, Guo Guanqing, Xiao Yujun, Zhang Yuge. Numerical simulation of effect of bag number on flow field inside a wing upside-entrainment bag filter[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3349-3354.

Citation:

Tang Qi, Li Shanhong, Li Caiting, Guo Guanqing, Xiao Yujun, Zhang Yuge. Numerical simulation of effect of bag number on flow field inside a wing upside-entrainment bag filter[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3349-3354.

滤袋数目对翼形上进风袋式除尘器内流场影响的数值模拟研究

1.
湖南大学环境科学与工程学院, 长沙 410082
基金项目:
国家自然科学基金资助项目（51108168）

中国博士后科学基金资助项目（2011M501271）

湖南省科技计划项目（2012RS4001）

湖南省自然科学基金资助项目（13JJ3044）

湖南大学青年教师成长计划项目
中图分类号: X701.2

Numerical simulation of effect of bag number on flow field inside a wing upside-entrainment bag filter

1.
College of Environmental Science and Engineering, Hunan University, Changsha 410082, China
Fund Project:

摘要: 针对实际运行过程中，袋式除尘器滤袋使用寿命短，压力损失过大的问题，本文以翼形上进风袋式除尘器为研究对象，采用CFD（computational fluid dynamics）技术模拟分析不同滤袋数（分别为92、88、84、80、76和72）时袋式除尘器内气流分布和压力损失规律。主要考察了流量分配系数、最大流量不均幅值、气流迹线、滤袋表面速度分布与压降等指标。结果表明，滤袋数为76个时，气流分布最为均匀，各滤袋负载均衡；相同过滤速度下，装置的压降随滤袋数目的增加而上升，即压降大小顺序为92>88>84>76>72；与72个滤袋相比，76个滤袋的可用过滤面积更大。综合考虑，袋式除尘器的最优滤袋数目为76个。模拟结果为袋式除尘器的设计和优化提供了依据。
- 袋式除尘器 /
- 数值模拟 /
- 滤袋数目 /
- 气流分布
Abstract: To solve actual operation problems of short service life of filter bag and large pressure drop, the patterns of gas flow distribution and pressure drop at different numbers of bags (92, 88, 84, 80, 76 and 72,respectively) inside the wing upside-entrainment bag filter were investigated by using CFD technology. Flow distribution coefficient, maximum flow uneven amplitude, airflow pathline, surface velocity distribution and pressure drop were regarded as important indexes to study the pattern. The results showed that the flow distribution was most uniform and the pressure drop was acceptable in the case of 76 bags. Under the same filtration rate, the pressure drop increased with the increase of the number of bags, namely the turn of pressure drop was as follows 92>88>84>76>72. Furthermore, the effective filtration area of 76 bags was more than 72 bags. In the all, 76 bags was the optimal number of bag filter. The results could provide a guideline for the design and optimization of bag filter.
- bag filter /
- numerical simulation /
- number of filter bag /
- gas flow distribution

[1]	高晖, 郭烈锦. 下进风袋式除尘器内部气固两相流动数值模拟. 化学工程, 2001, 29(5): 35-38 Gao Hui, Guo Liejin. Numerical simulation of gas-solid two-phase flow in a filter dust collector with a low entry. Chemical Engineering, 2001, 29(5): 35-38 (in Chinese)
[2]	周兴求. 环保设备设计手册大气污染控制设备. 北京: 化学工业出版社, 2004
[3]	向晓东. 现代除尘理论与技术. 北京: 冶金工业出版社, 2002
[4]	郝吉明, 马广大. 大气污染控制工程(第2版). 北京: 高等教育出版社, 2002
[5]	王福军. 计算流体动力学分析-CFD软件原理与应用.北京:清华大学出版社,2004
[6]	潘伶, 杨燕珍. 袋式除尘器内部流场的数值模拟. 环境工程学报, 2012, 6(8): 2750-2754 Pan Ling, Yang Yanzhen. Numerical simulation of flow field in bag filter. Chinese Journal of Environmental Engineering, 2012, 6(8): 2750-2754(in Chinese)
[7]	党小庆, 刘婷, 胡红胜, 等. 5000 t/d回转窑窑尾电除尘器气流分布数值模拟研究. 水泥工程, 2010, (4): 9-13 Dang Xiaoqing, Liu Ting, Hu Hongsheng, et al. Numerical simulation of air flow distribution in electrical precipitation of 5000 t/d clinker kiln. Cement Engineering, 2010, (4): 9-13 (in Chinese)
[8]	方鑫. 袋式除尘器过滤除尘的数值模拟研究, 长沙: 湖南大学硕士学位论文, 2012. 15-17 Fang Xin. Numerical simulation on filtration dust of bag filter. Changsha: Master Dissertation of Hunan University, 2012. 15-17(in Chinese)
[9]	张广朋, 袁竹林. 袋式除尘器内部流场的数值模拟研究. 动力工程学报, 2010, 30(7): 518-522 Zhang Guangpeng, Yuan Zhulin. Numerical simulation study on internal flow field of bag filters. Journal of Chinese Society of Power Engineering, 2010, 30(7): 518-522(in Chinese)
[10]	Licheng Wang, Yifei Zhang, Xingang Li, et al. Experimental investigation and CFD simulation of liquid-solid-solid dispersion in a stirred reactor. Chemical Engineering Science, 2010, 65(20):5559-5572
[11]	Yee Shin Khor, Qing Xiao. CFD simulations of the effects of fouling and antifouling. Ocean Engineering, 2011, 38(10):1065-1079
[12]	Raghvendra Gupta, David F.Fletcher, Brian S.Haynes. On the CFD modeling of Taylor flow in microchannels. Chemical Engineering Science, 2009, 64(12): 2941-2950
[13]	杜柳柳, 沈恒根. 高温烟气除尘滤料过滤性能检测及对比分析. 工业安全与环保, 2008, 34(2): 4-7 Du Liuliu, Shen Henggeng. Testing and contrast on filtration performance of filter media for high temperature flue. Industrial Safety and Environmental Protection, 2008, 34(2): 4-7 (in Chinese)
[14]	付海明,赵友军. 袋式除尘器流场动态测试及优化. 中南大学学报(自然科学版), 2010, 41(2): 799-806 Fu Haiming, Zhao Youjun. Dynamic test and optimization of flow field in bag filter. Journal of Central South University (Science and Technology), 2010, 41(2): 799-806 (in Chinese)
[15]	Zhengwei Long, Qiang Yao. Numerical simulation of the flow and the collection mechanism inside a scale hybrid particulate collector. Powder Technology, 2012, 215-216:26-37

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唐奇, 李珊红, 李彩亭, 郭官清, 肖育军, 张玉歌. 滤袋数目对翼形上进风袋式除尘器内流场影响的数值模拟研究[J]. 环境工程学报, 2014, 8(8): 3349-3354.

引用本文:

唐奇, 李珊红, 李彩亭, 郭官清, 肖育军, 张玉歌. 滤袋数目对翼形上进风袋式除尘器内流场影响的数值模拟研究[J]. 环境工程学报, 2014, 8(8): 3349-3354.

Citation:

Tang Qi, Li Shanhong, Li Caiting, Guo Guanqing, Xiao Yujun, Zhang Yuge. Numerical simulation of effect of bag number on flow field inside a wing upside-entrainment bag filter[J]. Chinese Journal of Environmental Engineering, 2014, 8(8): 3349-3354.

滤袋数目对翼形上进风袋式除尘器内流场影响的数值模拟研究

1. 湖南大学环境科学与工程学院, 长沙 410082

收稿日期: 2014-01-11

基金项目:

国家自然科学基金资助项目（51108168）

中国博士后科学基金资助项目（2011M501271）

湖南省科技计划项目（2012RS4001）

湖南省自然科学基金资助项目（13JJ3044）

湖南大学青年教师成长计划项目

关键词:

摘要: 针对实际运行过程中，袋式除尘器滤袋使用寿命短，压力损失过大的问题，本文以翼形上进风袋式除尘器为研究对象，采用CFD（computational fluid dynamics）技术模拟分析不同滤袋数（分别为92、88、84、80、76和72）时袋式除尘器内气流分布和压力损失规律。主要考察了流量分配系数、最大流量不均幅值、气流迹线、滤袋表面速度分布与压降等指标。结果表明，滤袋数为76个时，气流分布最为均匀，各滤袋负载均衡；相同过滤速度下，装置的压降随滤袋数目的增加而上升，即压降大小顺序为92>88>84>76>72；与72个滤袋相比，76个滤袋的可用过滤面积更大。综合考虑，袋式除尘器的最优滤袋数目为76个。模拟结果为袋式除尘器的设计和优化提供了依据。

English Abstract

Numerical simulation of effect of bag number on flow field inside a wing upside-entrainment bag filter

1. College of Environmental Science and Engineering, Hunan University, Changsha 410082, China

Received Date: 2014-01-11

Fund Project:

Keywords:

Abstract: To solve actual operation problems of short service life of filter bag and large pressure drop, the patterns of gas flow distribution and pressure drop at different numbers of bags (92, 88, 84, 80, 76 and 72,respectively) inside the wing upside-entrainment bag filter were investigated by using CFD technology. Flow distribution coefficient, maximum flow uneven amplitude, airflow pathline, surface velocity distribution and pressure drop were regarded as important indexes to study the pattern. The results showed that the flow distribution was most uniform and the pressure drop was acceptable in the case of 76 bags. Under the same filtration rate, the pressure drop increased with the increase of the number of bags, namely the turn of pressure drop was as follows 92>88>84>76>72. Furthermore, the effective filtration area of 76 bags was more than 72 bags. In the all, 76 bags was the optimal number of bag filter. The results could provide a guideline for the design and optimization of bag filter.

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滤袋数目对翼形上进风袋式除尘器内流场影响的数值模拟研究

Numerical simulation of effect of bag number on flow field inside a wing upside-entrainment bag filter

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滤袋数目对翼形上进风袋式除尘器内流场影响的数值模拟研究

English Abstract

Numerical simulation of effect of bag number on flow field inside a wing upside-entrainment bag filter

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