As a vacuum cleaner driven by compressed air, it can instantly release compressed air through the pulse jet blowing mechanism, and induce several times of secondary air to enter the filter bag of the vacuum cleaner at high speed. In the case of bag inflation, shock vibration and directional airflow can be used - dust in the bag. From a structural point of view, the pulse bag filter consists of a filter bag, a dust chamber, an air bag, an electric controller, a pulse valve, an air cleaning chamber, a nozzle and a pneumatic valve.
During the operation of the vacuum cleaner, the dust gas will enter the dust chamber through the air inlet and enter the clean air chamber through the filter bag. During this process, dust is left on the outer surface of the filter bag, and the mesh air is discharged through the outlet. When the pressure difference is reached, the electronic controller will control the pulse valve, so that the high pressure gas in the air bag is ejected through the nozzle. When high-speed airflow and induced airflow enter the filter bag, the filter bag will expand, and the high-pressure airflow will be ejected through the micro-slits of the filter bag fibers. The filter bag shrinks quickly, allowing dust to fall off. But in the dust removal process, the dust removal of the pulse bag filter mainly occurs in the dust layer. If the flow field distribution in the dust collector is not uniform, the thickness of the dust layer on each filter bag will be different. The thickness of the dust is different and the resistance is different, resulting in uneven distribution of the flow field.
Therefore, if the flow field of the dust collector is not uniform, the dust removal efficiency of the pulse bag filter will be lower.
