Dry air-supplying apparatus and dryer

Abstract

To minimize the heat energy required for supplying dry air. A dry air-supplying apparatus 1 comprises a dry air-supplying air path 6 for supplying air from the surroundings that has been heated as dry air and a discharge air path 7 for discharging the moist air to the surroundings after the drying operation by the supplied dry air. Thus, the dry air-supplying air path draws in surrounding air and provides heat-exchanges by a heat exchanger 13 with the air in the discharge air path, this heat-exchanged air is heated by a radiator 14 and is supplied as dry air; while the discharge air path provides heat-exchanges, by the heat exchanger, the moist air after the drying operation with the air in the dry air-supplying air path, cools and dehumidifies the air that has been heat-exchanged by a cooler, and discharges it.

1 . A dry air-supplying apparatus comprising:
 a dry air-supplying air path for supplying air from surroundings that has been heated as dry air and;   a discharge air path for discharging moist air to the surroundings after the drying operation by the supplied dry air,   wherein the dry air-supplying air path draws in surrounding air and provides heat-exchanges with the air in the discharge air path by a heat exchanger, and supplies the heat-exchanged air that is heated thereafter by a radiator as dry air,   wherein the discharge air path provides heat-exchanges, by the heat exchanger, between the moist air after the drying operation and the air in the dry air-supplying air path, and cools and dehumidifies the air that has been heat-exchanged by a cooler, and discharges it.   
   
   
       2 . A dry air-supplying apparatus according to  claim 1 ,
 wherein the radiator and the cooler constitute a refrigeration cycle,   wherein, between the outlet of the heat exchanger and the cooler at the discharge path, the air from the heat exchanger is mixed with air from the surroundings before it flows to the cooler.   
   
   
       3 . A dryer having a storage compartment in its casing for storing items to be dried such as clothes, the dryer comprising:
 a dry air-supplying air path for heating air from outside the storage compartment and supplying said heated air to the storage compartment;   a discharge air path for discharging air inside the storage compartment to the outside of the storage compartment,   wherein the dry air-supplying air path draws in air from outside the storage compartment and provides heat-exchanges with the air in the discharge air path by a heat exchanger, and supplies the heat-exchanged air, after it is heated by a radiator to the storage compartment,   wherein the discharge air path provides heat-exchanges, by the heat-exchanger, between the air from inside the storage compartment and the air in the dry air-supplying air path, and provides mixing of air from the space between the casing and the storage compartment into the heat-exchanged air, and cools, and dehumidifies by a cooler, and discharges it to the outside of the storage compartment.