| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve energy saving performance by reducing the rotation number of a compressor without exhausting a part of drying air to outside. <P>SOLUTION: There are provided with: a blower fan 37 supplying hot air heated by a heat pump device 43 to a rotary drum 32; an air passage 38 through which drying air blown by the blower fan 37 is caused to flow from a heat sink 47 into a radiator 45 and then introduced into the rotary drum 32; a cooling fan 52 cooling the air passage 38; temperature detecting means 49 for detecting a temperature of a refrigerant; rotation number detecting means 51 for detecting the rotation number of a compressor 44; and control means 50 for controlling a drying operation. The control means 50 is configured to drive the cooling fan 52 when the rotation number of the compressor 44 decreases from a set rotation number to a prescribed rotation number. <P>COPYRIGHT: (C)2013,JPO&INPIT |
