Sumesh Petroleum are the manufacturers of
complete range of Heatless Compressed Air Dryer system for moisture
removal in air, These Compressed air dryers are designed for transformer
Drying application. These air dryer are specially design~d to suit the
transformer application with additional refrigeration air dryer, auto
drain valve, carbon filter, and after filter.
Through our research and development we are able to design the air dryer
for the atmospheric condition of India where the average ambient
temperature is quite high through out the year. The dryer is designed
our sized keeping in mind the criticality and sensitivity of the
transformers to the moisture.
Following is a brief description of the working
of these compressed air dryers. A Heatless compressed air dryer is the dessicanttype air dryer
for achieving a dew point of -40°C or better. PROCESS: Incoming Compressed air is dried with
refrigeration dryer then it passes through carbon filter, pre filter
passes through the slide piston valve assembly and is directed towards
adsorber chamber r where the compressed air passes through the high
quality of desiccant. Compressed Air drying takes place by adsorption.
Dry Compressed air from adsorber chamber I then passes through the Check
valve assembly and then through}he after-filter to the transformer.
While Compressed air is being drying in chamber r 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 ofthe dry compressed air passes·through the needle
valve I 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 repressunsed to line pressure for a
smooth changeover. Efficient dew point of -40°C or better can be
achieved through effective drying system comprising of refrigeration
dryer and replace air dryer.
For continuous measurement of the quality of the air online digital dew
point meter can be provided on request.