基于流固耦合的滤袋振动的数值模拟

李树云; 谭志洪; 姜洋; 刘丽冰; 王作杰

doi:10.12030/j.cjee.201412235

环境工程学报

基于流固耦合的滤袋振动的数值模拟

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李树云, 谭志洪, 姜洋, 刘丽冰, 王作杰. 基于流固耦合的滤袋振动的数值模拟[J]. 环境工程学报, 2016, 10(5): 2535-2540. doi: 10.12030/j.cjee.201412235

引用本文:

李树云, 谭志洪, 姜洋, 刘丽冰, 王作杰. 基于流固耦合的滤袋振动的数值模拟[J]. 环境工程学报, 2016, 10(5): 2535-2540. doi: 10.12030/j.cjee.201412235

Li Shuyun, Tan Zhihong, Jiang Yang, Liu Libing, Wang Zuojie. Numerical simulation of filter bag vibration based on flow-solid coupling[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2535-2540. doi: 10.12030/j.cjee.201412235

Citation:

Li Shuyun, Tan Zhihong, Jiang Yang, Liu Libing, Wang Zuojie. Numerical simulation of filter bag vibration based on flow-solid coupling[J]. Chinese Journal of Environmental Engineering, 2016, 10(5): 2535-2540. doi: 10.12030/j.cjee.201412235

基于流固耦合的滤袋振动的数值模拟

1.
南昌大学环境与化学工程学院, 南昌 330031
2.
河北工业大学机械工程学院, 天津 300130
3.
中国中材装备集团有限公司, 天津 300400
基金项目:
中图分类号: X701

Numerical simulation of filter bag vibration based on flow-solid coupling

1.
School of Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
2.
College of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China
3.
Sinoma Technology & Equipment Group Co.Ltd., Tianjin 300400, China
Fund Project:

摘要: 滤袋是决定袋式除尘器除尘效率的关键元件,由于是柔性的悬挂结构,相邻的滤袋在气流作用下可能会发生相互碰撞,引起严重的破袋事故。针对该问题采用流固耦合方法,对袋式除尘器流场引起柔性滤袋的振动进行了数值模拟。分别以3个大小不同的进口风速模拟了滤袋的振动规律,得到了滤袋底部一点的位移图和轨迹图,结果表明,进口速度越大,滤袋的位移越大。所以有效地控制进口风速和提高内部气流速度的均匀性,可以减少滤袋的破袋事故,对节约更换滤袋的费用,有很大的经济效益。
- 滤袋 /
- 振动 /
- 袋式除尘器 /
- 流固耦合
Abstract: A filter bag is the key element that determines dust collecting efficiency. However, because of the flexible suspension structure of the filter bag, the neighboring filter bags may collide with each other due to the gas flow, which could lead to serious accidents of bag breaking. To address this problem, the fluid-solid coupling method was used to simulate the process. The filter bag vibration was simulated by three different conditions of inlet velocity, and the displacement diagram and the path diagram of the filter bag were illustrated. The results showed that a higher inlet velocity would lead to a greater displacement of the filter flag. This indicates that the improved regulation of the inlet velocity and an improvement in the uniformity of the internal flow can effectively reduce incidences of breaking bags. These improvements would also provide considerable cost benefits by eliminating the need to replace broken filter bags.
- filter bag /
- vibration /
- bag filter /
- fluid-solid coupling

[1]	叶晓丽, 陈章水, 严永青. 10 m超长脉冲袋除尘器喷吹性能的研究. 硅酸盐通报, 2012, 31(6): 1352-1355 Ye Xiaoli, Chen Zhangshui, Yan Yongqing. Study on the pulse injection performance of bag filter with 10 m super long bags. Bulletin of the Chinese Ceramic Society, 2012, 31(6): 1352-1355(in Chinese)
[2]	王以飞. 大型袋式除尘器流场的模拟分析与应用. 上海: 东华大学硕士学位论文, 2010 Wang Yifei. Analysis and application of large-scale bag filter simulation. Shanghai: Master Dissertation of Donghua University, 2010(in Chinese)
[3]	荆丰梅, 肖钢, 熊志民. 潮流能水轮机单向流固耦合计算方法. 振动与冲击, 2013, 32(8): 91-95 Jing Fengmei, Xiao Gang, Xiong Zhimin. Calculation method of fluid and structure interaction in a vertical-axis ticlal current turbine. Journal of Vibration and Shock, 2013, 32(8): 91-95(in Chinese)
[4]	谢芳芳. 柔性体流致振动的数值模拟研究. 杭州: 浙江大学博士学位论文, 2013 Xie Fangfang. A numerical study on flow-induced vibration of flexible structures. Hangzhou: Doctor Dissertation of Zhejiang University, 2013(in Chinese)
[5]	徐枫. 结构流固耦合振动与流动控制的数值模拟. 哈尔滨: 哈尔滨工业大学博士学位论文, 2009 Xu Feng. Numerical simulation of fluid-solid coupling vibration and flow control of structures. Harbin: Doctor Dissertation of Harbin Institute of Technology, 2009(in Chinese)
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[10]	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)
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李树云, 谭志洪, 姜洋, 刘丽冰, 王作杰. 基于流固耦合的滤袋振动的数值模拟[J]. 环境工程学报, 2016, 10(5): 2535-2540. doi: 10.12030/j.cjee.201412235

引用本文:

李树云, 谭志洪, 姜洋, 刘丽冰, 王作杰. 基于流固耦合的滤袋振动的数值模拟[J]. 环境工程学报, 2016, 10(5): 2535-2540. doi: 10.12030/j.cjee.201412235

Citation:

基于流固耦合的滤袋振动的数值模拟

1. 南昌大学环境与化学工程学院, 南昌 330031
2. 河北工业大学机械工程学院, 天津 300130
3. 中国中材装备集团有限公司, 天津 300400

收稿日期: 2015-03-02

基金项目:

关键词:

滤袋 /
振动 /
袋式除尘器 /
流固耦合

摘要: 滤袋是决定袋式除尘器除尘效率的关键元件,由于是柔性的悬挂结构,相邻的滤袋在气流作用下可能会发生相互碰撞,引起严重的破袋事故。针对该问题采用流固耦合方法,对袋式除尘器流场引起柔性滤袋的振动进行了数值模拟。分别以3个大小不同的进口风速模拟了滤袋的振动规律,得到了滤袋底部一点的位移图和轨迹图,结果表明,进口速度越大,滤袋的位移越大。所以有效地控制进口风速和提高内部气流速度的均匀性,可以减少滤袋的破袋事故,对节约更换滤袋的费用,有很大的经济效益。

English Abstract

Numerical simulation of filter bag vibration based on flow-solid coupling

1. School of Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China
2. College of Mechanical Engineering, Hebei University of Technology, Tianjin 300130, China
3. Sinoma Technology & Equipment Group Co.Ltd., Tianjin 300400, China

Received Date: 2015-03-02

Fund Project:

Keywords:

Abstract: A filter bag is the key element that determines dust collecting efficiency. However, because of the flexible suspension structure of the filter bag, the neighboring filter bags may collide with each other due to the gas flow, which could lead to serious accidents of bag breaking. To address this problem, the fluid-solid coupling method was used to simulate the process. The filter bag vibration was simulated by three different conditions of inlet velocity, and the displacement diagram and the path diagram of the filter bag were illustrated. The results showed that a higher inlet velocity would lead to a greater displacement of the filter flag. This indicates that the improved regulation of the inlet velocity and an improvement in the uniformity of the internal flow can effectively reduce incidences of breaking bags. These improvements would also provide considerable cost benefits by eliminating the need to replace broken filter bags.