Method of operating a premixing burner

Details Method of operating a premixing burner Method of operating a premixing burner

1995-03-31

1996-11-26

Yeung, James C.

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

431268, 431349, 431353, F23C 500

Patent

active

055779042

ABSTRACT:
In a premixing burner (1) which essentially consists of a mixing section (3) and a downstream combustion section (13), an ignition zone (9) being placed intermediately between the two sections, a fuel (5) and combustion air (4) are introduced at the head side of the mixing section (3) to form a mixture. At the end of the mixing section (3), the fuel/air mixture (6) ignites in the region of the ignition zone (9), specifically in such a way that no backflow zone is formed on the axis (12) of symmetry. Self-ignition and flashback are prevented by the high velocity of the mixture (6) in the mixing section (3). A conical reaction zone (11) is produced by the temperature differences between wall boundary layer and core of the hot-gas flow (15) inside the combustion section (13).

REFERENCES:
patent: 2592110 (1952-04-01), Berggren et al.
patent: 4916904 (1990-04-01), Ramsaier et al.
patent: 5248251 (1993-09-01), Dalla Betta et al.

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