Improved performance of the opposing pulsed-jet cleaning by annular-slit nozzles for pleated filter cartridges

doi:10.1016/j.seppur.2022.122233

	Improved performance of the opposing pulsed-jet cleaning by annular-slit nozzles for pleated filter cartridges
	Lin, Zijie 1,2; Li, Jianlong 1; Chen, Da-Ren 3; Wu, Quanquan 1; Ma, Zhifei 1; Wu, Daishe 4
刊名	SEPARATION AND PURIFICATION TECHNOLOGY
	2022-12-15
卷号	303
关键词	Dust collector Pleated filter cartridges Reversed pulsed -flow cleaning Opposing pulsed -jet flow Cleaning performance Pleated cartridge regeneration
ISSN号	1383-5866
DOI	10.1016/j.seppur.2022.122233
通讯作者	Li, Jianlong(jlli@ncu.edu.cn) ; Chen, Da-Ren(dchen3@vcu.edu)
英文摘要	The opposing pulsed-jet cleaning with round nozzles has been recently introduced to reduce the patchy cleaning often faced during the regeneration of pleated filter cartridges in dust collectors. Additional to the primary nozzle for jetting a cleaning flow, the above technology applies an auxiliary nozzle installed at the cartridge base to launch a second flow for the cleaning. To further improve the performance, this study proposed to adopt an annular-slit nozzle as the primary-one in the above cleaning. The numerical modeling was applied to investigate the flow and pressure fields in a dust collector under the above cleaning with the settings varying the jet distance, h, from 0 to 700 mm, the delay time, Delta t, from -0.125 to 0.125 s, and the pressure ratio, PR, from 0 to 4. The peak intensity and uniformity of the static pressure on the inner wall surfaces of filter cartridges during the cleaning were selected as the indicators for the cleaning performance. It is found that the cleaning performance in the cases with an annular-slit nozzle was found to be generally better than that in the cases with a round nozzle. Using an annular-slit nozzle, the air entrainment effect was enhanced, and the collision of both opposing jet flows was occurred in the position much closer to the cartridge opening. The cleaning in the case of Delta t > 0 s was in general better than that in the cases of Delta t < 0 s (with the optimum achieved at Delta t = 0.025 s). The reasonable PR was in the range of 0.5 to 1.5 to realize effective jet airflow collision. The cleaning intensity and C.V. in the cases with an annular-slit nozzle and under the suggested settings of h = 300 mm, Delta t = 0.025 s and PR = 1.5 would achieve the values of 1,050 Pa and 0.13 respectively, resulting in the 27 % and 63 % improvement on average (compared to those in the case using a round nozzle).
资助项目	National Natural Science Foundation of China ; Natural Science Foundation of Jiangxi Province ; China Postdoctoral Science Foundation ; [52064037] ; [51704166] ; [20202BAB204030] ; [2017M622105]
WOS关键词	FLOW ; OPTIMIZATION ; PARAMETERS ; DESIGN
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000880443900001
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Jiangxi Province ; China Postdoctoral Science Foundation
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/130365]
专题	中国科学院合肥物质科学研究院
通讯作者	Li, Jianlong; Chen, Da-Ren
作者单位	1.Nanchang Univ, Sch Resources & Environm Engn, Nanchang 330031, Peoples R China 2.Inst Plasma Phys, Chinese Acad Sci, Hefei 230031, Peoples R China 3.Virginia Commonwealth Univ, Dept Mech & Nucl Engn, Particle Lab, 401 West Main St, Richmond, VA 23294 USA 4.Pingxiang Univ, Sch Mat & Chem Engn, Pingxiang 337000, Peoples R China
推荐引用方式 GB/T 7714	Lin, Zijie,Li, Jianlong,Chen, Da-Ren,et al. Improved performance of the opposing pulsed-jet cleaning by annular-slit nozzles for pleated filter cartridges[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2022,303.
APA	Lin, Zijie,Li, Jianlong,Chen, Da-Ren,Wu, Quanquan,Ma, Zhifei,&Wu, Daishe.(2022).Improved performance of the opposing pulsed-jet cleaning by annular-slit nozzles for pleated filter cartridges.SEPARATION AND PURIFICATION TECHNOLOGY,303.
MLA	Lin, Zijie,et al."Improved performance of the opposing pulsed-jet cleaning by annular-slit nozzles for pleated filter cartridges".SEPARATION AND PURIFICATION TECHNOLOGY 303(2022).