F - Mech Eng,Light,Heat,Weapons – 23 – N
Patent
F - Mech Eng,Light,Heat,Weapons
23
N
158/52
F23N 3/00 (2006.01) F23C 7/00 (2006.01) F23G 7/06 (2006.01)
Patent
CA 1314472
Device for feeding waste air and/or combustion air to a burner or combustion chamber Abstract The device for feeding waste air and/or combustion air to a burner has an upstream cyclindrical swirl inlet system (inlet header 1) with feeder nozzles (8, 9) leading in tangentially. The main nozzle (8) is here provided at a radial distance R from the burner axis on the inlet header (1), which distance is greater than the radius r of the combustion chamber (4). By means of this increase in the swirl radius, a substantially higher swirl inten- sity can be generated at small throughputs. In order to avoid an undue rise in the swirl at higher throughputs, a secondary flow (7), which is fed in via a control ele- ment (11), is introduced into the inlet header (1) via a secondary nozzle (9) tangentially and opposite to the main swirling flow. Alternatively, the secondary flow (7) can also be fed to the inlet header (1) via inlet slots (14) substantially at right angles to the direction of the main flow. In both cases, the tangential flow component of the main flow (6) is slowed down. The con- trol element (11) in the secondary flow (7) is advanta- geously designed in such a way that the secondary flow (7) sets in only when the main flow throughput rises to 50% to 60% of the nominal throughput. (Figure 1) Le A 25 281
596960
Carlowitz Otto
Gockel Claus
Huning Werner
Noll Kurt
Wiebe Herbert
Aktiengesellschaft Bayer
Carlowitz Otto
Fetherstonhaugh & Co.
Gockel Claus
Huning Werner
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