| 摘要 |
PROBLEM TO BE SOLVED: To consecutively perform cooling dehumidification of air by shortening a defrosting time, in a drying cold air device exchanging operations in two cooling coils to perform cooling dehumidification of air.SOLUTION: A drying cold air device 10 includes a casing 11, two cooling coils 21, 22 provided in a distribution channel of air flow in the casing 11, and a cooling flow channel 31 to which the two cooling coils 21, 22 are alternately connected and which supplies, to the connected cooling coils 21, 22, brine for performing cooling dehumidification of passing air to generate drying cold air. In the drying cold air device 10, a circulation flow channel 32 is provided, which is connected to a non-cooling side coil in which connection with the cooling flow channel 31 is blocked, out of the two cooling coils 21, 22, and circulates brine. The non-cooling side coil is constituted so as to be defrosted by the passing air and the brine of the circulation flow channel 32. |
