Pulse-on-demand controllers allow you to clean your filter less often. Less pulses helps you save compressed air and reduces wear and tear on the filters. Cutting down on compressed air means less electricity is required in the compressors and less wear and tear on the filter means they last longer.
Dust collection filters such as the bags in baghouses, cartridges in cartridge collectors, and HEPA filters all filter out dust particles by collecting them in between their fibers. Dust builds up on the bags and cartridges to form a filter cake over the filter further restricting the ability of dust particles and airflow to pass through the filter. This restricting of airflow causes a pressure drop (resistance) which is directly related to the amount of dust built up on the filters. As the pressure drop increases, the airflow through the collector will decrease. Most baghouses and cartridge collectors have cleaning cycles which remove some of the dust from the filters keeping the pressure drop low.
For many years, pulse-jet baghouses were cleaned by simple timers. The timers would start the cleaning cycle every so many minutes. You would be able to change how often your filters are cleaned by changing the time between each cleaning. This design makes sure that the filters are cleaned regularly, whether they need to be cleaned or not. The main issue with this is that every time a filter is cleaned, it increases the chances of it failing. Filters are cleaned by pulsing high pressure air into the filter. This expands the filter, which causes the top layers of dust to fall off. But that expansion can also cause holes or rips in the filters.
While Aerodyne doesn’t manufacture baghouses or their controllers, it seems like we’re always working with them. However, as we like to say, the pulse-on-demand controller is the wave of the future. Sure, the old baghouse controller is still functional, but the rising cost of energy and the growing concern about waste make the pulse-on-demand controller the ideal choice.