化工学报2016，Vol.67Issue(8)：3452-3458,7.DOI:10.11949/j.issn.0438-1157.20160396
刚性过滤器脉冲反吹过程中滤管内动态压力特性
Dynamic pressure characteristics in filter candle during process of pulse cleaning for rigid filter
摘要
Abstract
The performance of reactor filter in the adsorptive desulphurization unit of catalytic gasoline (S-Zorb) will pose direct impacts on the separation and recycling of adsorbent. By utilizing high frequency sensors and experimental set-up of filtration performance during the process of pulse cleaning, the dynamic pressure characteristics varied with time in different measurement points along filter candles were investigated. Also, the effects of the length of filter candle, cleaning pressure and pulse width on dynamic pressure characteristics were analyzed. As shown by the results, the maximum pressure in the filter candle remained stable after gradually increasing from the open end to the blind end. Meanwhile, lower maximum pressure in different measurement points along the whole filter candle was found under the same operating conditions when the longer filter candle was utilized. In these experiments, the dynamic pressure near the open end of 1750—2000 mm filter candles reduced to negative pressure after reaching the maximum pressure. Due to the combination of airflow and pulse pressure wave, the sustained oscillations in the dynamic pressure profile can be discovered. Furthermore, the cleaning efficiency of long filter candle can be improved through the method of properly increasing cleaning pressure and pulse width.关键词
过滤/分离/脉冲反吹/多孔介质/动态压力Key words
filtration/separation/pulse cleaning/porous media/dynamic pressure分类
化学化工引用本文复制引用
栾鑫,姬忠礼,刘龙飞..刚性过滤器脉冲反吹过程中滤管内动态压力特性[J].化工学报,2016,67(8):3452-3458,7.基金项目
国家重点基础研究发展计划项目（2012CB215000）。@@@@supported by the National Basic Research Program of China (2012CB215000) （2012CB215000）
