关键词: 脉冲反吹, 压力传感器, 陶瓷过滤管, 动态压力

Abstract: The dynamic pressure characteristics at different positions of pulse cleaning system were measured by high frequency dynamic pressure sensor. The effects of cleaning pressure and diameter of nozzles on pulse cleaning performance were examined. Both design proposals for the subject and filtration to verify this research conclusion were proposed. The results show that there is significant difference of pulse cleaning performance with the same diameter nozzles, the difference of pulse jet nozzles performance increases when cleaning pressure increases, the pulse cleaning intensity decreases when the nozzles diameter increases. The static pressure along cleaning direction gradually increases. By decreasing the diameter of nozzles along the pulse jet direction, the pulse cleaning effectiveness can be improved. The ratio of sectional area of nozzle (s) to sectional area of pulse jet pipe (S) is significant for pulse cleaning. In this research, the best ratio s/S is from 45% to 55%.

Key words: pulse cleaning, pressure sensor, ceramic filter, dynamic pressure