Features:
Barometric condensers are utilized to de-superheat and condense the incoming vapors plus
cool the existing gases, while developing the lowest possible pressure. This is basically a direct
contact jet condenser.
Construction:
Barometric condensers consist of a body, water nozzle such as spray type nozzle and jet type
nozzle which are threaded into the body. Water enters through the two inlets, leaving from the
lower nozzle in the form of converging jet streams and from the upper nozzle in the form of
converging sprays.
If inlet vapor contains non-condensable gases, the ejector has to be installed near the condenser.
This ejector is used to entrain the non-condensable gases from condenser by creating
vacuum.
Working Principle:
Vapors entering the condenser at the top are condensed by water from the nozzles. The condensates
and water comes to the hot well through vertical tail pipe called as "Barometric leg"
due to gravitational force. The Barometric leg allows the water and condensates to the exit no
matter what the vacuum is in the process vessel. The non-condensable gases are withdrawn
from the condenser by using a steam jet ejector.
Advantages: Immunity from flooding, in the event of priming or liquid entrainment There are no moving parts, low maintenance Requires little space and is readily installed Lower installation cost Open barometric discharge provides safe operation without an atmospheric relief valve Economical on water consumption
Applications: Processing edible oil, milk and other products in food industry Sugar refining Alcohol plants and distilleries Pulp and paper mills Petroleum refineries Salt manufacturing plants
Immunity from flooding, in the event of priming or liquid entrainment
