Method and device for supplying a gaseous fuel to a premixing bu

Details Method and device for supplying a gaseous fuel to a premixing bu Method and device for supplying a gaseous fuel to a premixing bu

1995-12-04

1999-04-20

Dority, Carroll B.

Combustion

Process of combustion or burner operation

Flame shaping, or distributing components in combustion zone

431 12, 431354, 60733, 481801, 481894, F23M 304

Patent

active

058952110

ABSTRACT:
A gaseous fuel (B) is fed to a a premixing burner which has a main line (10) for the feed of oxygenous gas (G) into at least one mixing zone and/or a combustion zone (VMZ, EMZ, VZ). In the process, at least a first portion of the fuel is fed to the main line (10), in which it is mixed with oxygenous primary gas (PG) inside at least one premixing zone (VMZ) and forms a premixture. The concentration of the fuel in the premixture (VM), under the respective operating conditions of the burner, is selected in such a way that the premixture lies outside the ignition limit. The premixture (VM) is fed to a final mixing zone (EMZ) and is mixed therein with the residual fuel (RB) likewise supplied and/or with oxygenous secondary gas (SG). The resulting final mixture (EM) is fed to a following combustion zone (VZ).

REFERENCES:
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patent: 4932861 (1990-06-01), Keller et al.
patent: 5016443 (1991-05-01), Shimizu et al.
patent: 5453004 (1995-09-01), Hofbauer
patent: 5482457 (1996-01-01), Aigner et al.
patent: 5489203 (1996-02-01), Dobbeling et al.

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