杨光辉, 周美伊柏, 林 涛, 黄琬岚, 谢智宇, 林龙沅, 陈海焱

（西南科技大学环境与资源学院, 四川绵阳621010）

引用格式：杨光辉, 周美伊柏, 林涛, 等. 圆周式脉冲喷吹对滤筒清灰均匀性的影响[J]. 中国粉体技术, 2023, 29(6): 125-133.

YANG G H, ZHOU M Y B, LIN T, et al. Effect of circular pulse injection on uniformity of dust cleaning in filter cartridges[J]. China Powder Science and Technology, 2023, 29(6): 125-133.

DOI：10.13732/j.issn.1008-5548.2023.06.012

收稿日期：2023-05-17,修回日期：2023-08-17,在线出版时间：2023-10-09 08:47。

基金项目：国家自然科学基金项目,编号:52204286;四川省科技计划资助项目,编号:2023YFS0362。

第一作者简介：杨光辉(1998—),硕士研究生,研究方向为工业通风除尘。E-mail: 1292720700@qq.com。

通信作者简介：陈海焱(1964—),男,教授,博士生导师,研究方向为气流粉碎、 分级与除尘净化。E-mail: chenhai-yan@163.com。

摘要：为了探究圆周式脉冲喷吹对滤筒清灰均匀性的影响,改变喷吹压力,研究最优喷吹距离下的喷嘴与内置旋转器2种不同的脉冲喷吹方式下,侧壁压力沿滤筒轴向和水平圆周方向上的分布特性。结果表明:在使用普通喷嘴时,沿滤筒轴向方向至上向下的侧壁压力逐渐增大,下部压力大于中、上部;在使用内置旋转器时,滤筒侧壁压力分布为上部压力小,中部和下部压力相差不大。在滤筒水平圆周方向上,侧壁压力峰值并不是完全对称,相较与普通喷嘴,内置旋转器在水平圆周方向的侧壁压力峰值差均不超过100 Pa,且各测点压力标准偏差较普通喷嘴显著降低48.14%～95.38%,说明圆周式脉冲喷吹均匀性更优。圆周式脉冲喷吹能明显提升滤筒中部清灰强度和在滤筒轴向和水平圆周方向上的清灰均匀性,同时减小脉冲气流对底部的冲击,改善滤筒下部滤料破损的问题。

关键词：脉冲喷吹; 清灰; 喷吹压力; 喷吹距离; 内置旋转器

Abstract：In order to investigate the effect of circular pulse injection on the uniformity of dust cleaning in filter cartridge, the distribution characteristics of side wall pressure along the axial and horizontal circumferential directions of filter cartridge were studied by changing injection pressure under two different pulse injection methods, namely the nozzle and the built-in rotator, at the optimal injection distance. The results show that when using a regular nozzle, the pressure on the side wall from top to bottom along axial direction of filter cartridge gradually increases, and the pressure in the lower part is greater than that in the middle and upper parts. When using a built-in rotator, the pressure distribution on side wall of filter cartridge is small in the upper part, and the pressure difference between the middle and lower parts is not significant. In the horizontal circumferential direction of the filter cartridge, the peak pressure on side wall is not completely symmetrical. Compared with ordinary nozzles, the difference in peak pressure on the side wall of the built-in rotator in the horizontal circumferential direction does not exceed 100 Pa, and the standard deviation of pressure at each measuring point is significantly reduced by 48.14%～95.38% compared to ordinary nozzles indicating that the uniformity of circular pulse injection is better. Circular pulse injection can significantly improve the cleaning intensity in the middle of filter cartridge and the uniformity of cleaning in axial and horizontal circumferential directions of filter cartridge, while reducing the impact of pulse airflow on the bottom and improving the problem of filter material damage in the lower part of filter cartridge.

Keywords：pulse injection; ash removal; injection pressure; blowing distance; built-in rotator

参考文献(References)：

[1]蒋薇. 工业大气污染防控研究[J]. 环境科学与管理, 2017, 42(9): 100-104.

JIANG W. Research on prevention and control of industrial air pollution[J]. Environmental Science and Management, 2017, 42(9): 100-104.

[2]孟亮. 雾霾天气的成因及治理措施[J]. 资源节约与环保, 2020(5): 114.

MENG L. Causes of haze weather and control measures[J]. Resources Conservation and Environmental Protection, 2020(5): 114.

[3]王向坤. 论除尘器的应用与未来发展趋势[J]. 石化技术, 2019, 26(11): 139, 141.

WANG X K. On the application and future development trend of dust collector[J]. Petrochemical Technology, 2019, 26(11): 139, 141.

[4]CROOM M. Effective selection of filter dust collectors[J]. Chemical Engineering, 1993, 100(7): 86.

[5]张一帜, 陈海焱, 覃金珠. 滤筒除尘器及应用现状[J]. 能源与环境, 2009(5): 47-49, 52.

ZHANG Y Z, CHEN H Y, QIN J Z. [J]. Energy and Environment, 2009(5): 47-49, 52.

[6]梅谦, 杨振坤, 杨国亮, 等. 滤筒除尘器将更新换代袋式除尘器[C]//中国环境科学学会. 2010中国环境科学学会学术年会论文集(第4卷). 北京: 中国环境科学出版社, 2010: 99-103.

MEI Q, YANG Z K, YANG G L, et al. Cartridge dust collector will replace bag dust collector[C]//Chinese Society of Environmental Sciences. 2010 Chinese Society of Environmental Sciences Annual Conference Proceedings (Vol. 4). Beijing: China Environmental Science Press, 2010: 99-103.

[7]席玉林, 季晓珑. 滤筒除尘器在水泥行业的应用[J]. 内蒙古石油化工, 2011, 37(8): 116-117.

XI Y L, JI X L. Application of cartridge dust collector in cement industry[J]. Inner Mongolia Petrochemical Industry, 2011, 37(8): 116-117.

[8]李建龙, 陈源正, 林子捷, 等. 除尘滤筒脉喷清灰技术研究进展与展望[J]. 金属矿山, 2022(11): 23-35.

LI J L, CHEN Y Z, LIN Z J, et al. Research progress and prospect of dust removal technology by pulse blasting of dust filter cylinder[J]. Metal Mine, 2022, 557(11): 23-35.

[9]LI Q, ZHANG M, QIAN Y, et al. The relationship between peak pressure and residual dust of a pulse-jet cartridge filter[J]. Powder Technology, 2015, 283: 302-307.

[10]胥海伦, 李岚溪, 沈玉妹, 等. 上部开孔锥形散射器对滤筒脉冲清灰效果的影响[J]. 环境工程学报, 2017, 11(10): 5549-5553.

XU H L, LI L X, SHEN Y M, et al. Effect of upper hole conical scatterer on pulse cleaning effect of filter cartridge[J]. Chinese Journal of Environmental Engineering, 2017, 11(10): 5549-5553.

[11]胥海伦, 周苗苗, 张情, 等. 开口散射器对滤筒除尘脉冲清灰效果的影响[J]. 环境工程学报, 2017, 11(8): 4647-4652.

XU H L, ZHOU M M, ZhANG Q, et al. Effect of open scatterer on dust removal effect of filter cylinder dust removal pulse[J]. Chinese Journal of Environmental Engineering, 2017, 11(8): 4647-4652.

[12]刘东, 余洪浪, 王令, 等. 上部开口散射器提高脉冲喷吹清灰性能实验[J]. 环境工程, 2019, 37(8): 138-142.

LIU D, YU H L, WANG L, et al. Experimental study on improving ash cleaning performance of pulsed jet by upper open scatterer[J]. Environmental Engineering, 2019, 37(8): 138-142.

[13]郑清月, 尹茜茜, 刘东, 等. 上部开口诱导引流装置对卧式长滤筒清灰性能的影响[J]. 环境工程学报, 2023, 17(2): 580-588.

ZHEN Q Y, YIN Q Q, LIU D, et al. Effect of upper opening induced drainage device on dust removal performance of horizontal long filter cartridge[J]. Journal of Environmental Engineering, 2023, 17(2):580-588.

[14]QIAN Y, CHEN H, DAI H, et al. Experimental study of the nozzle settings on blow tube in a pulse-jet cartridge filter[J]. Separation and Purification Technology, 2017, 191: 244-249.

[15]CHEN S, CHEN D R. Annular-slit nozzles for reverse flow cleaning of pleated filter cartridges[J]. Separation and Purification Technology, 2017, 177: 182-191.

[16]YAN C, LIU G, CHEN H. Effect of induced airflow on the surface static pressure of pleated fabric filter cartridges during pulse jet cleaning[J]. Powder Technology, 2013, 249: 424-430.

[17]LI S, XIN J, XIE B, et al. Experimental investigation of the optimization of nozzles under an injection pipe in a pulse-jet cartridge filter[J]. Powder Technology, 2019, 345: 363-369.

[18]任玲, 袁娜, 林龙沅. 多孔喷吹气流偏斜对滤筒清灰性能的影响[J]. 中国粉体技术, 2021, 27(1): 58-64.

REN L, YUAN N, LIN L Y. Effect of multi-hole jet deflection on cleaning performance of filter cartridge[J]. China Powder Science and Technology Technology, 2021, 27(1):58-64.

[19]刘佳莹, 任玲, 林小嘉, 等. 脉冲清灰喷吹气流偏斜的优化研究[J].中国安全生产科学技术, 2022, 18(1): 195-200.

LIU J Y, REN L, LIN X J, et al. Research on optimization of jet skew in pulsed ash cleaning[J]. China Work Safety Science and Technology, 2022, 18(1):195-200.

[20]LI J, WU D, WU Q, et al. Design and performance evaluation of novel colliding pulse jet for dust filter cleaning[J]. Separation and Purification Technology, 2019, 213: 101-113.

[21]QIU J, WU D, CHEN D R, et al. Reverse pulsed-flow cleaning of pleated filter cartridges having an inner pleated filter cone[J]. Process Safety and Environmental Protection, 2021, 146: 481-489.