| 摘要 |
The present invention relates to a heat exchanging type boiler that includes: a water retaining reservoir (10) in which a predetermined amount of water is charged; and a combustion chamber (33) for emitting heating gas at a high temperature to the water in the water retaining reservoir (10) through a heating gas supply pipe (20) such that the water in the water retaining reservoir (10) is raised to produce steam at a high pressure, the boiler characterized in that water discharging film (32) disposed between the heating gas supply pipe (20) and the water and having a plurality of fine through holes such taht the water in the water retaining reservoir (10) is not leaked to the combustion chamber (33) and at the same time the heating gas emitted to the water by means of the heating gas supply pipe (20) is distributed in substantially small bubble form. Thus, water heating speed can be considerably increased, heat efficiency of the boiler can be more improved, a volume of the boiler can be decreased, the life of the boiler can be semi-permanently extended since the water retaining reservoir is not directly heated, and the cleaning of the interior of the boiler can be carried out in an easy manner. |
