US 11,747,014 B2
Atmosphere-adjustable multi-staged swirl ammonia burner
Shui-Qing Li, Beijing (CN); Min-Hang Song, Beijing (CN); Jin-Guo Sun, Beijing (CN); and Qian Huang, Beijing (CN)
Assigned to TSINGHUA UNIVERSITY, Beijing (CN)
Filed by TSINGHUA UNIVERSITY, Beijing (CN)
Filed on Jan. 20, 2022, as Appl. No. 17/580,504.
Claims priority of application No. 202110923877.8 (CN), filed on Aug. 12, 2021.
Prior Publication US 2023/0047390 A1, Feb. 16, 2023
Int. Cl. F23D 14/26 (2006.01); F23C 1/00 (2006.01); F23C 6/04 (2006.01); F23D 14/24 (2006.01); F23D 14/58 (2006.01); F23L 9/02 (2006.01)
CPC F23D 14/26 (2013.01) [F23C 1/00 (2013.01); F23C 6/045 (2013.01); F23D 14/24 (2013.01); F23D 14/58 (2013.01); F23L 9/02 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An atmosphere-adjustable multi-staged swirl ammonia burner, comprising:
a combustion structure comprising a swirl-flow pre-combustion chamber, a combustion housing, and a staged-flow adjustment assembly which are sequentially arranged, the combustion housing defining a combustion chamber, the swirl-flow pre-combustion chamber being in fluid communication with the combustion chamber, and the staged-flow adjustment assembly being disposed on a side wall of the combustion housing and away from the swirl-flow pre-combustion chamber, the staged-flow adjustment assembly being in fluid communication with the combustion chamber and configured to introduce staged airflows into the combustion chamber;
a tangential inflow structure disposed on a top of the swirl-flow pre-combustion chamber, fluid communicated with the swirl-flow pre-combustion chamber, and configured to introduce air and fuel gas into the swirl-flow pre-combustion chamber;
a secondary-air structure disposed between the combustion housing and the tangential inflow structure, the secondary-air structure and the tangential inflow structure surrounding the swirl-flow pre-combustion chamber, and the secondary-air structure being in fluid communication with the combustion chamber and configured to introduce secondary air into the combustion chamber; and
an ammonia adjustment structure extending through the tangential inflow structure into the combustion chamber, the ammonia adjustment structure comprising a branched inlet pipe and a central adjustment assembly, one end of the central adjustment assembly extending through the tangential inflow structure into the combustion structure, one end of the branched inlet pipe being in fluid communication with the central adjustment assembly and the combustion chamber, the branched inlet pipe being configured to introduce ammonia gas, and the central adjustment assembly being configured to adjust spray shape of the ammonia gas introduced from the branched inlet pipe.