Gas dehumidification system

Abstract

Disclosed herein is an improved gas dehumidification system comprised of an ambient air-cooler for cooling a circulating coolant. A central pump is connected to the ambient air cooler to receive and circulate a part of the circulating coolant to a first heat exchanger and another part to a second heat exchanger, fluidly coupled with the central pump. A dehumidification unit is in connection with the first and second heat exchangers and to receive the cooled coolant to dehumidify a gas passing through dehumidification unit and directs back the coolant to ambient air-cooler through the second heat exchanger to re-utilize the coolant for another cycle of gas dehumidification.

We claim: 
     
         1 . A gas dehumidification system ( 100 ), comprising:
 an ambient air-cooler ( 101 ) for cooling a circulating coolant;   a central pump ( 102 ) connected with said ambient air cooler ( 101 );   a first heat exchanger ( 103 ) and a second heat exchanger ( 104 ) fluidly coupled with said central pump ( 102 );   a dehumidification unit ( 106 ) in connection with said first and second heat exchangers ( 103 ) and ( 104 );   wherein said central pump ( 102 ) supplies a part of said circulating coolant to said first heat exchanger ( 103 ) and another part to said second heat exchanger ( 104 ),   
       wherein said dehumidification unit ( 106 ) is configured to receive the cooled circulating coolant to dehumidify a gas passing through said dehumidification unit ( 106 ) and directs back said circulating coolant to said ambient air-cooler ( 101 ) through said second heat exchanger ( 104 ) for re-utilization. 
     
     
         2 . The system as claimed in  claim 1 , wherein said circulating coolant is cooled convectively against the ambient air via said ambient air cooler ( 101 ). 
     
     
         3 . The system as claimed in  claim 1 , said the second heat exchanger ( 104 ) receives another part of said coolant through a bypass mechanism ( 108 ) arranged between said first heat exchanger ( 103 ) and said second heat exchanger ( 104 ). 
     
     
         4 . The system as claimed in  claim 1 , said bypass mechanism  108  comprises a control valve ( 107 ) to regulate the flow of said circulating coolant within said second heat exchanger ( 104 ). 
     
     
         5 . The system as claimed in  claim 1 , wherein said dehumidification unit ( 106 ) comprises a hollow pressure cylinder ( 110 ) with a finned-tube heat exchanger ( 111 ) convectively exchanging heat between said flowing gas and said circulating coolant. 
     
     
         6 . The system as claimed in  claim 5 , wherein said fins ( 112 ) of said finned-tube heat exchanger ( 111 ) are coated with a hydrophobic coating to ensure the formation of condensate droplets while dehumidification of said gas. 
     
     
         7 . The system as claimed in  claim 6 , wherein said condensate droplets formed during said gas dehumidification gets collected at the bottom of the gas dehumidification unit ( 106 ). 
     
     
         8 . The system as claimed in  claim 7 , wherein a level sensor is installed at the base of said dehumidification unit to determine the level of condensate collected at said base within said dehumidification unit. 
     
     
         9 . The system as claimed in  claim 1  further comprises a refrigeration unit ( 105 ) coupled convectively with said first heat exchanger ( 103 ) and said second heat exchanger ( 104 ), wherein said refrigeration unit ( 105 ) facilitates heat exchange between said the circulating coolant and said refrigeration unit ( 105 ), to further cool down the temperature of said circulating coolant. 
     
     
         10 . The system as claimed in  claim 9 , wherein said refrigeration unit ( 105 ) is a liquid-liquid chiller. 
     
     
         11 . The system as claimed in  claim 5 , wherein said dehumidification unit ( 106 ) comprises additional fins ( 113 ) protruding from outer walls of finned-tube heat exchanger ( 111 ).