| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a heat exchanger capable of properly preventing or suppressing generation of drain in a region at a water inlet side, and boiling of hot water circulated in a heat transfer tube in a region at a hot water outlet side when the heat exchanger is totally thinned by applying the single-stage heat transfer tube. <P>SOLUTION: This heat exchanger HE1 includes the meandering heat transfer tube T1 configured by disposing a plurality of straight tubular bodies 11a penetrating through a plurality of fins 2A in a single stage, and a can body 6 having a plurality of sidewall sections surrounding their periphery. The hot water is circulated in the heat transfer tube T1 in one direction from a water inlet-side tubular body section 11a' toward the hot water outlet-side tubular body section 11a'. A width L1 of a clearance C between the water inlet-side tubular body section 11a and a sidewall section 60c is larger than a width L2 of a clearance C1 between the hot water outlet-side tubular body section 11a" and the sidewall section 30a. <P>COPYRIGHT: (C)2013,JPO&INPIT |
