| 摘要 |
<p>A heat exchanger (3) for exchanging heat between incoming warm moist air and cold outgoing dried air in an air dryer comprises input and output manifolds (10, 11). Connected between the manifolds are outer tubes (15) arranged in large radius U-bends. A plurality of inner tubes (16) carrying the dried air is mounted in each outer tube (15), the incoming air flowing in the outer tubes (15) and around the inner tubes (16). After exiting form the outer tubes the moist air is cooled in a main exchanger (1), condensation being removed by a separator (2), and then fed into the inner tubes (16).</p> |
