A combustion device comprising a plurality of burners formed by joining two plate members with a clearance between the plates forming a carryover flame hole.

摘要

598604 A combustion device is disclosed comprising a plurality of tubular burners (1) disposed side by side with one another. Each of the tubular burners (1) includes a mixing tube (2) with an inlet port at a rear end and a flame hole member (3) fitted into a front end region of the mixing tube. The mixing tubes are formed by two plate members (4) with a clearance formed between front end portions to communicate between adjoining mixing tubes. The clearance forms a carryover flame hole of rectangular shape (5) and a recessed intermediate flame hole portion (5a). The clearance between the plates in the intermediate flame hole portion (5a) is larger in width than the carryover flame hole (5) for reduced flow restriction of the air gas mixture in the intermediate region.