| 摘要 |
<P>PROBLEM TO BE SOLVED: To increase dehumidifying effect in a circulating air passage, reduce the amount of cooling water used while securing drying effect, and increase water conservation. <P>SOLUTION: A side vertical air passage 33 for directing damp air exhausted from an outer tub 11 upward is provided with a first constricted portion 52 obtained by inward swelling the whole of the inside wall of the air passage so as to have a reduced cross-sectional area, and a second constricted portion 56 provided below the first constricted portion and obtained by inward swelling only the inside wall of the outer tub 11 side so as to have a reduced cross-sectional area. Water poured from a cooling water supply port 35 into the side vertical air passage 33 falls in a shower form from above, and the water rebounds at the first constricted portion 52 to form a water droplet-dispersing area. The water and condensed water flow down to form a water film spreading in the air passage at the second constricted portion 56. The damp air is efficiently cooled by the water film and the water droplet-dispersing area to be dehumidified. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
