| 摘要 |
PROBLEM TO BE SOLVED: To provide a latent heat recovery type combustion device, for example, that including an exhaust gas collection cylinder capable of reducing noise without using a sound absorber, that including an exhaust gas collection cylinder capable of reducing resonance action by exhaust sound of a combustion exhaust gas, and the like.SOLUTION: A combustion device 1 includes: a sensible heat recovery heat exchanger 7 recovering sensible heat of a combustion gas; a latent heat recovery heat exchanger 8 recovering latent heat of a combustion exhaust gas; and an exhaust collection cylinder 10 disposed at a downstream side of the latent heat recovery heat exchanger 8 and discharging the combustion exhaust gas after heat exchange to a front part. An exhaust gas introducing portion 31 formed on a bottom portion of the exhaust collection cylinder 10, is provided with exhaust dividing means 41 for dividing the combustion exhaust gas introduced from an exhaust port 14 of the latent heat recovery heat exchanger 8, to an exhaust flow directing to a front part of the exhaust collection cylinder 10 and an exhaust flow directing to a rear part, the exhaust dividing means 41 includes: an opening member 35 having a plurality of opening portions 36, and the opening member 35 has a front part 35a extending to a front side with respect to the exhaust port and a rear part 35c extending to a rear side in a plane view. |
