A staged combustion head structure suitable for hydrogen fuel
By designing a staged combustion head structure suitable for hydrogen fuel, adopting a staged combustion method with a duty stage and a main combustion stage, and combining medium swirl intensity and purge air nozzles, the problems of unstable hydrogen fuel combustion and high nitrogen oxide emissions were solved, achieving stable combustion and low emissions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HENAN ZHONGYUAN GAS POWER GENERATION CO LTD OF HUANENG GROUP
- Filing Date
- 2026-04-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing gas turbine combustors cannot directly burn hydrogen fuel, leading to problems such as unstable combustion, spontaneous combustion, and high nitrogen oxide emissions.
Design a staged combustion head structure suitable for hydrogen fuel, including a duty stage and a main combustion stage, to achieve stable combustion under low operating conditions and reduce nitrogen oxide emissions under high operating conditions through staged combustion. Employ medium swirl intensity and diffusion combustion, combined with purge air nozzles to prevent backfire.
Achieving stable combustion and low NOx emissions over a wide operating range improves the unit's ignition success rate and safety, expands the stable operating boundary of the combustion chamber, and reduces NOx generation.
Smart Images
Figure CN122408079A_ABST