| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat exchanger capable of suppressing condensed water produced in heat exchanging to be clogged at the lower end part of fins. <P>SOLUTION: This heat exchanger comprises a plurality of tubes 110 in which fluid passages are formed and disposed so as to be stacked on each other and the fins 120 interposed between the plurality of tubes 110 and increasing a heat transfer area. A high temperature gas including steam flows from the upper side to the lower side in the area of the fins 120, a low temperature fluid lower in temperature than the high temperature gas is allowed to flow in the fluid passages of the tubes 110 to recover not only latent heat but also condensing latent heat from the high temperature gas so as to heat the low temperature fluid. Extension parts 121 extended downward in the state of non-contact with the surface of the tubes 110 are formed on the high temperature gas side of the fins 120, and projected parts 122 and 123 projecting from the surfaces of the fins 120 are formed on the extended parts 121. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
