一种天然气长火焰燃烧装置
By employing a four-layer concentric sleeve structure with staged ignition and staged mixing design, the problem of insufficient equipment adaptability and efficiency of existing natural gas burners has been solved. This results in a combustion device with a long flame, uniform temperature field, and efficient roasting, reducing costs and meeting production requirements.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG FUHUA HYDROGEN AMMONIA EQUIPMENT CO LTD
- Filing Date
- 2025-08-21
- Publication Date
- 2026-07-17
AI Technical Summary
Existing natural gas burners are insufficient to meet the high-efficiency heating requirements of equipment such as vortex roasting furnaces in terms of flame length, combustion efficiency, temperature gradient, roasting uniformity, and compatibility with specific equipment.
It adopts a four-layer concentric sleeve structure, and forms a long flame by staged oxygen and natural gas supply, which is ignited and mixed in stages. The long flame combustion device, which is coaxially set, includes oxygen and gas passages to form a long flame. The long flame is formed by the first to fourth gas pipes set in the same direction, forming an inner ring cavity, a middle ring cavity, and an outer ring cavity arranged from the inside to the outside. The ring widths of the inner ring cavity, the middle ring cavity, and the outer ring cavity are equal to ensure flow matching.
It achieves a flame length of over 3.5 meters, uniform temperature field, reliable ignition, high roasting efficiency, compact structure, and low manufacturing and installation costs.
Smart Images

Figure CN224516779U_ABST