文章基本信息

标题：Effects of the Overall Length and OD on Opposing-pulse-jet Cleaning for Pleated Filter Cartridges
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作者：Quanquan Wu ; Jianlong Li ; Daishe Wu 等
期刊名称：Aerosol and Air Quality Research
印刷版ISSN：1680-8584
出版年度：2020
卷号：20
期号：3
页码：432-443
DOI：10.4209/aaqr.2019.10.0527
语种：English
出版社：Chinese Association for Aerosol Research in Taiwan
摘要：Opposing-pulse-jet technology has been proposed as a solution for regenerating filtration media by minimizing the incomplete cleaning of pleated filter cartridges. In this study, we investigated the effects of a pleated filter cartridge’s overall length and outer diameter (OD) on the performance of opposing-pulse-jet cleaning via numerical modeling. For each pleated filter cartridge, the delay time, Δt (defined as the delay in launching the secondary nozzle), was varied to analyze the intensity and the uniformity of the static pressure distribution in the core of the cartridge. It was found that two opposing jet flows collided much more intensely in the core when the length of the overall cartridge, L, was short, and the OD was small. For a given L, the pressure pulse’s performance was maximized by varying Δt. The pulse intensity and uniformity in the filter core can be represented as a bimodal (double-peaked) function of Δt. In general, the pulse intensity was greater when Δt > 0 s than when Δt < 0 s (when the secondary jet was launched before the primary jet).
关键词：Dust collector; Filter cartridge; Opposing pulse jet; Cleaning quality; Length; Diameter.