| 摘要 |
PURPOSE:To make pressure loss in airflow paths in constant to reduce hissing sound and improve heat exchanging efficiency by a method wherein the airflow paths at the inner peripheral side and the outer peripheral side of a cylindrical heat exchanger are kept in the same spaces in the heat exchanger utilized for rotary type air-conditioning and ventilating fan or the like. CONSTITUTION:A heat exchanger is formed by laminating bent first elements 1 and second elements 2 alternately so as to form the air supplying port 8 of primary airflow A and the air discharging port 9 of secondary airflow B while the primary airflow A and the secondary airflow B are supplied or discharged by a fan. The primary airflow A is supplied from the primary airflow supplying port 3 through the primary side airflow path 10. On the other hand, the secondary airflow B is discharged from the secondary airflow discharging port 9 through the secondary side airflow path 11. The space between airflow paths 10, 11 is kept so as to keep the same space in the outer and inner peripheral sides by distance plates 4 and shielding plates 5. Accordingly, heat exchange is effected between the primary airflow A and the secondary airflow B through partitioning plates 3. On the other hand, the total heat exchange of accumulated heat in the heat exchanger may be effected by rotating the heat exchanger. |
