| 摘要 |
PURPOSE:To prevent a fin from being clogged by arranging a dust separating centrifugal separator in ventilation air on the upstream side of a heat exchanger. CONSTITUTION:The outside air taken in by a fan 6 is applied with a swirling force by the guid blade of a centrifugal separator as shown by an arrow X. Thereby, dust proceeds along the inner peripheral wall of a duct 9, is separated from air by a guide tube 32, and is collected by a container 33. The air from which dust has been removed is discharged into each compartment via a heat exchanger 10. Accordingly, a fin is prevented from being clogged by removing dust in the ventilation air. |
