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.

CN224516779UActive Publication Date: 2026-07-17SHANDONG FUHUA HYDROGEN AMMONIA EQUIPMENT CO LTD

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

Technical Problem

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.

Method used

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.

Benefits of technology

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.

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Abstract

本实用新型涉及一种天然气长火焰燃烧装置,包括同轴线设置的第一气管、第二气管、第三气管、第四气管,第一气管、第二气管、第三气管、第四气管的延伸长度顺次减小,第四气管的端口处设有点火器,所述第一气管为氧气通道,第二气管为燃气通道,第三气管和第四气管均设有氧气通道和燃气通道。本实用新型在使用时,通过同轴设置的第一到第四气管,在增多气管的同时保证结构的紧凑,在使用时第四气管出口端的点火器点火后,第四气管内的氧气和燃气先燃烧,并向前端喷射火焰;火焰沿轴向回传至第三气管的出口,引燃第三气管;随后第二气管与第一气管在主火焰根部完成最终掺烧,形成长火焰,从而实现逐级点燃、逐级掺混的长火焰,从而满足生产需求。
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