Liquid heaters and vaporizers – Indirectly heated separate injected fluid – Submerged flame
Reexamination Certificate
2005-09-06
2005-09-06
Wilson, Gregory (Department: 3749)
Liquid heaters and vaporizers
Indirectly heated separate injected fluid
Submerged flame
C122S018100
Reexamination Certificate
active
06938582
ABSTRACT:
The present invention relates to a heat exchanging type boiler that includes: a water retaining reservoir10in which a predetermined amount of water is charged; and a combustion chamber33for emitting heating gas at a high temperature to the water in the water retaining reservoir10through a heating gas supply pipe20such that the water in the water retaining reservoir10is raised to produce steam at a high pressure, the boiler characterized in that a water discharging film32disposed between the heating gas supply pipe20and the water and having a plurality of fine through holes such that the water in the water retaining reservoir10is not leaked to the combustion chamber33and at the same time the heating gas emitted to the water by means of the heating gas supply pipe20is 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.
REFERENCES:
patent: 4441460 (1984-04-01), Wyatt
patent: 4768495 (1988-09-01), Zifferer
patent: 5005528 (1991-04-01), Virr
patent: 5271378 (1993-12-01), Herold
patent: 5735235 (1998-04-01), Li
patent: 0316132 (1989-05-01), None
patent: 2000088203 (2000-03-01), None
St. Onge Steward Johnston & Reens LLC
Wilson Gregory
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