Dehumidifying Cooling Device for District Heating

Abstract

A dehumidifying cooling device for district heating is developed that comprising; a case with partitions divided into interior, which are a wet channel consisting of an outside air suction, exhaust and a dry channel for circulated air suction from conditioning area and air supply; a rotating sensible heat exchanger to heat exchange outside air of wet channel with the circulated air in the dry channel; a heating coil between the sensible heat exchanger and the exhaust for raising the temperature of outside air; a dehumidifying wheel for adsorbing and removing moisture contained in the circulated air; the dehumidifying wheel being regenerated by evaporating the adsorbed moisture thereby supplying the evaporated moisture into the high-temperature outside air in the wet channel, and a regenerative-evaporative cooler installed between the circulated air supply and the sensible heat exchanger for cooling the circulated air in the dry channel, the cooled circulated air delivered to the air supply.

1 - 9 . (canceled) 
     
     
         10 . A dehumidifying cooling device for district heating comprising:
 a case having a partition to divide the interior of the case into a wet channel and a dry channel, the wet channel being provided at one end with an outside air suction hole for introducing outside air into the wet channel, and at the other end with an exhaust hole for discharging the outside air, the dry channel being provided at one end with a circulated air suction hole for introducing circulated air from a conditioning space into the dry channel and, at the other end with an air supply hole for supplying cooling air into the conditioning space;   a sensible heat exchanger configured to rotate about the partition and serving to heat exchange the outside air, introduced into the wet channel through the outside air suction hole, with the circulated air introduced into the dry channel;   a heating coil installed in the wet channel between the back end of the sensible heat exchanger and the exhaust hole and raising the temperature of the outside air passing through the wet channel by use of hot water introduced into the heating coil;   a dehumidifying wheel configured to rotate about the partition behind the heating coil and serving to adsorb and remove moisture contained in the circulated air within the dry channel, the dehumidifying wheel being regenerated by evaporating the adsorbed moisture to thereby supply the evaporated moisture into the high-temperature outside air in the wet channel; and   a regenerative-evaporative cooler installed in the dry channel between the circulated air supply hole and the sensible heat exchanger and cooling the circulated air in the dry channel, which was dehumidified to high-temperature dry air by the dehumidifying wheel and subsequently, heat exchanged and cooled by the sensible heat exchanger, the cooled circulated air being delivered to the air supply hole of the case.   
     
     
         11 . The device according to  claim 10 , further comprising:
 a direct-evaporative cooler installed in the dry channel in front of the regenerative-evaporative cooler, the direct-evaporative cooler carrying out a secondary cooling operation of the circulated air discharged from the regenerative-evaporative cooler.   
     
     
         12 . The device according to  claim 10 , further comprising:
 a first filter installed between the outside air suction hole and the sensible heat exchanger and removing impurities contained in the outside air; and   an exhaust blower installed between the dehumidifying wheel and the exhaust hole and forcibly discharging the outside air from the wet channel through the exhaust hole,   The first filter and the exhaust blower are installed in the wet channel.   
     
     
         13 . The device according to  claim 10 , further comprising:
 a second filter installed between the circulated air suction hole and the dehumidifying wheel and removing impurities from the circulated air; and   an air supply blower installed between the dehumidifying wheel and the sensible heat exchanger and forcibly discharging the cooled circulated air from the dry channel through the air supply hole,   The second filter and the air supply blower are installed in the dry channel.   
     
     
         14 . The device according to  claim 10 , wherein the case further has a cooler exhaust hole provided at the dry channel for discharging high-temperature air generated while the regenerative-evaporative cooler carries out a secondary cooling operation. 
     
     
         15 . The device according to  claim 14 , wherein the amount of the high-temperature air to be discharged through the cooler exhaust hole is 30% of the total circulated air. 
     
     
         16 . The device according to  claim 10 , wherein the hot water to be introduced into the heating coil is delivered from any: a cogeneration plant, a heating boiler, a micro-turbine, a small gas engine, a small gas turbine, a gas-fired boiler, or an oil-fired boiler. 
     
     
         17 . The device according to  claim 10 , wherein the circulated air suctioned through the circulated air suction hole is mixed with the outside air by a predetermined mixing ratio. 
     
     
         18 . The device according to  claim 10 , wherein the predetermined mixing ratio of the circulated air to the outside air is 7:3.