| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat exchanger capable of avoiding increase in the size of a casing as much as possible and suitably reducing the entire size when first and second spiral tube bodies for heat exchange are juxtaposed within the casing. <P>SOLUTION: The heat exchanger HE includes: the casing 7 having air supply ports 71a, 71b and an air exhaust port 72 for air for heating; and the first and second spiral tube bodies 4, 5 for heat exchange stored within the casing 7 and juxtaposed in the horizontal width direction of the casing 7. Width L1 in the longitudinal direction of the first spiral tube body 4 is set to exceed width L3 in the longitudinal direction of the second spiral tube body 5. The longitudinal direction of the first spiral tube body 4 is set to be a direction which is the horizontal width direction of the casing 7, and the longitudinal direction of the second spiral tube body 5 is set to be a direction which is the front/back depth direction of the casing 7. <P>COPYRIGHT: (C)2011,JPO&INPIT |
