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[1]钟乙琪,李耀,李建龙,等.长度1~10 m金属滤芯脉冲喷吹性能的模拟*[J].中国安全生产科学技术,2023,19(2):92-98.[doi:10.11731/j.issn.1673-193x.2023.02.013]
　ZHONG Yiqi,LI Yao,LI Jianlong,et al.Simulation on pulse injection performance of metal filter element with length of 1~10 m[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2023,19(2):92-98.[doi:10.11731/j.issn.1673-193x.2023.02.013]
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长度1~10 m金属滤芯脉冲喷吹性能的模拟*
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
19
期数:
2023年2期
页码:
92-98
栏目:
职业安全卫生管理与技术
出版日期:
2023-02-28

文章信息/Info

Title:
Simulation on pulse injection performance of metal filter element with length of 1~10 m
文章编号:
1673-193X(2023)-02-0092-07
作者:
钟乙琪; 李耀; 李建龙; 谢文君; 吴泉泉; 马志飞; 吴代赦
（1.南昌大学 资源与环境学院，江西 南昌 330031；
2.济南无忧注册安全工程师事务所有限公司，山东 济南 250000；
3.萍乡学院 材料与化学工程学院，江西 萍乡 337000）
Author(s):
ZHONG Yiqi;  LI Yao;  LI Jianlong;  XIE Wenjun;  WU Quanquan;  MA Zhifei;  WU Daishe
(1.School of Resources and Environment,Nanchang University,Nanchang Jiangxi 330031,China;
2.Jinan Unconcerned Registered Safety Engineers Company Limited,Jinan Shandong 250000,China;
3.School of Materials and Chemical Engineering,Pingxiang University,Pingxiang Jiangxi 337000,China)
关键词:
粉尘防治; 金属滤芯; 脉冲喷吹; 数值模拟; 压力分布
Keywords:
dust prevention and control;  metal filter element;  pulse injection;  numerical simulation;  pressure distribution
分类号:
X964
DOI:
10.11731/j.issn.1673-193x.2023.02.013
文献标志码:
A
摘要:
为探究金属长滤芯的脉冲喷吹性能，运用ANSYS Fluent软件开展脉喷流场的数值模拟，考察滤芯长度和金属网目数对喷吹强度和均匀性的影响。研究结果表明：脉冲喷吹过程中金属滤芯内存在4类压力峰，分别为静压波峰、气团膨胀峰、蓄积反弹峰、余压波动峰；不同长度滤芯内的静压力分布不同，金属短滤芯（1 m）的底部喷吹气流蓄积最为剧烈，形成的压力最大，中等长度滤芯（2~4 m）底部压力蓄积减弱，低于上部区域，长滤芯（5~10 m）内喷吹气流沿途先膨胀后持续减弱，侧壁压力整体表现为上部＞中部＞底部；1~5 m金属滤芯的喷吹强度及均匀性随着滤芯长度增加而变差，6~10 m金属滤芯的喷吹强度及均匀性随着滤芯长度增加而得到改善，且都随金属网目数的增加而改进。研究结果对金属滤芯的设计与优化具有指导意义。
Abstract:
In order to explore the pulse injection performance of metal long filter element,the numerical simulation of pulse injection flow field was carried out by using ANSYS Fluent software,and the influence of filter element length and metal mesh number on the injection intensity and uniformity was investigated.The results showed that there were four types of pressure peaks in the metal filter element during the pulse injection process,including the static pressure peak,air mass expansion peak,accumulation rebound peak and residual pressure fluctuation peak.The static pressure distribution in the filter elements with different lengths was different.The bottom injection flow accumulation of the metal short filter element (1 m) was the most intense,and the pressure was the largest.The bottom pressure accumulation of the medium length filter element (2~4 m) was weakened,which was lower than the upper region.The injection flow in the long filter element (5~10 m) expanded first and continued to weaken along the way.The overall side wall pressure was upper > middle > bottom.The injection intensity and uniformity of 1~5 m metal filter element became worse with the increase of filter element length,while the injection intensity and uniformity of 6~10 m metal filter element were improved with the increase of filter element length,and both of them were improved with the increase of metal mesh number.The research results have guiding significance for the design and optimization of metal filter elements.

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备注/Memo

备注/Memo:
收稿日期： 2022-08-13
* 基金项目： 国家自然科学基金项目(52064037，51704166)；江西省自然科学基金项目(20202BAB204030)；江西省2022年度研究生创新专项资金项目（YC2022—s115）
作者简介： 钟乙琪，硕士研究生，主要研究方向为大气污染防治技术。
通信作者： 李建龙，博士，副教授，主要研究方向为大气污染防治技术。
更新日期/Last Update: 2023-03-07