| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a latent heat heat-exchanger of high heat absorbing efficiency. <P>SOLUTION: This latent heat heat-exchanger includes a casing 40 having an exhaust inlet 401 on its bottom, an exhaust introduction cylinder 43 opened at its upper and lower sections to guide combustion exhaust of a gas distributed to an exhaust inlet 401 to an upper region in the casing 40, and a heat absorbing tube 41 for recovering latent heat from the combustion exhaust distributed into the casing 40 through the exhaust introduction cylinder 43, and the heat absorption tube 41 is constituted by arranging a plurality of spiral sections 411, 412 formed into the spiral shape with a center on the exhaust introduction cylinder 43, in parallel with each other vertically in layers. <P>COPYRIGHT: (C)2010,JPO&INPIT |
