| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve a problem that a conventional latent heat recovery heat exchanger in a tube and header method requires a combustion gas passage and a casing having airtightness for the latent heat recovery heat exchanger, and thus, has a complicated shape requiring a considerable skillful technique and accuracy during manufacturing. <P>SOLUTION: A latent heat heat-exchanger 30 comprises: a top plate 41; a bottom plate 43; a side plate 42 covering peripheries of the top plate 41 and the bottom plate 43; and combustion gas passages 33 penetrating the top plate 41 and the bottom plate 43. Combustion gas is brought into contact with the top late 41, the bottom plate 43 and the combustion gas passages 33 penetrating the top plate 41 and the bottom plate 43. <P>COPYRIGHT: (C)2012,JPO&INPIT |
