Difference between revisions of "Heatless Dryers"

Wet incoming Compressed air after passing through pre filter passes through the slide piston valve assembly and is directed towards adsorber chamber where the compressed air passes upward through the desiccant. Compressed Air  Dryers takes place by    adsorption. Dry Compressed air from adsorber chamber I then passes through the Check valve    assembly and then through the after- filter to the application or work    area.While Compressed air is being drying in chamber I the dessiccant in chamber II    where the desiccant has been wetted in the previous cycle is being    simultaneously regenerated. The chamber II is depressurized to atmosphere    through the purge valve in the downward direction. A portion of the dry    compressed air  passes through the needle valve / orifice plate through the desiccant and    flushes out the desorbed moisture.When the regeneration is complete,    the purge valve is closed and the tower is slowly repressurised to line    pressure for a smooth changeover. A drying period of 5 minutes provides an    efficient dew point of -40°C or better (at atmospheric pressure ). In    regeneration process approximately 30 seconds are required for repressurisation. The presence of oil, moisture and dust  particles in compressed  air is a well known fact for industrial  applications. As the technology advanced  with inducation of  sophisticated modern machineries working on compressed air, the usage  of recommended quality class of air as per machines manufacturer or international Standard Organisation (ISO) or Pneurope recommendation has  become  necessary. The usage of filtered, dry air as per above  recommendations results  in reduced wear and tear, increased machine  uptime, lower rejections, better  product quality and above all  considerable saving in energy.