Swirling-flow burner

Fluid sprinkling – spraying – and diffusing – With heating or cooling means for the system or system fluid – In terminal element

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Details

239403, B05B 1500

Patent

active

060767456

ABSTRACT:
A swirling-flow burner includes a burner tube and an oxidizer supply tube concentric with and spaced from the burner tube to define an annular fuel gas conduit between the tubes. A fuel gas injector is connected to the outlet end of the fuel gas conduit has a substantially U-shaped cross-section around a common axis of symmetry of the burner tube and the injector, and also has an annular outlet directed inwardly towards the axis and a gas mixing zone. A oxidizer injector is connected to the outlet end of the oxidizer supply tube and has an axis of symmetry common with the fuel gas injector. The outlet of the oxidizer injector is directed towards the gas mixing zone. A static swirler is provided in the oxidizer injector for producing a swirling movement of the oxidizer around the axis before the oxidizer is discharged from the oxidizer injector. The static swirler includes a partition dividing the flow of oxidizer between an upstream and a downstream section and is provided with at least one passageway for the passage of the oxidizer from the upstream to the downstream section, where the passageway is designed to change the flow direction of the oxidizer from a direction parallel with the axis of symmetry upstream of the partition to a direction transversely to the axis and tangentially in relation to the axis downstream of the partition, so as to form a rotating flow of oxidizer around the axis.

REFERENCES:
patent: 2624624 (1953-01-01), Kirschbaum
patent: 2636778 (1953-04-01), Michelsen
patent: 2701164 (1955-02-01), Purchas, Jr. et al.
patent: 2755134 (1956-07-01), Eck et al.
patent: 3474970 (1969-10-01), Simmons et al.
patent: 4216908 (1980-08-01), Sakurai et al.
patent: 4773596 (1988-09-01), Wright et al.
patent: 4842197 (1989-06-01), Simon et al.
patent: 5713205 (1998-02-01), Sciocchetti et al.

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