| 摘要 |
<p>PURPOSE:To decrease the quantity of heat escaping from the interior of a room to the outside in a dehumidifier utilizing a membrane which is permeable to water vapor, but not permeable to air, by causing heat exchange between the outside air to be discharged and the outside air which has been newly taken in. CONSTITUTION:In a dehumidifier 12 wherein its case 13 is divided by a membrane 14 permeable only to water vapor into a passage 15 for air of high humidity and a passage 16 for air of low humidity, a heat exchange means comprising a wall plates 33, 34 is formed in the passage 16 for the outside air. Humid inside air 29 is taken in by a fan 17 from an inlet 31 to be returned again to the inside of a room through the passage 15 and an outlet 32, while dry outside air 30 is taken in from an inlet 19 by a fan 18 to be discharged to the outside through the passage 16 and an outlet 20. Water vapor in the air 29 permeates the membrane 14 to be transferred into the air 30 due to a difference in partial pressure of water vapor. The air 30 which has absorbed heat from the warm inside air 29 through the membrane 14 is heat exchanged with the air 30 which has been newly taken in from the inlet 19 through a wall plate 34, so that heat quantity escaping from the air 29 to the air 30 decreases.</p> |
