Ammonia gas stable combustion device

By using a mixture of ignition fuel and oxygen to generate a high-temperature flame, and combining this with a device that adds ammonia and pure oxygen, the problems of unstable ignition and slow combustion of ammonia are solved, achieving stable and efficient combustion of ammonia and enhancing its application potential in coal-fired power generation systems.

CN224201702UActive Publication Date: 2026-05-05GUIZHOU FURAN ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Application Number
CN202520987119.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-05-20
Publication Date
2026-05-05
Estimated Expiration
2035-05-20

AI Technical Summary

Technical Problem

Ammonia is difficult to ignite stably, burns slowly, and is prone to flameout, making it difficult to achieve a blending ratio of more than 20% in existing coal-fired power generation systems, thus limiting its large-scale replacement of traditional fossil fuels.

Method used

A flame generator that uses a mixture of ignition fuel and oxygen to produce a flame, through an ammonia addition device and a pure oxygen addition device, ensures that the ammonia burns stably in the high-temperature zone of the flame under oxygen-rich conditions. The swirling flame and pure oxygen assist combustion to ensure that the ammonia is fully mixed and burned off.

Benefits of technology

This method achieves stable combustion of ammonia, increases the combustion speed, reduces the probability of flameout, avoids environmental corrosion and toxicity, and improves the combustion efficiency and safety of ammonia.

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Abstract

The utility model discloses an ammonia gas stable combustion device which comprises a flame generator, an ammonia gas adding device and a pure oxygen adding device, the flame generator enables ignition fuel and oxygen to be mixed and combusted to generate flames, the ammonia gas adding device is used for adding ammonia gas to the outer side of the flames, the pure oxygen adding device is used for adding pure oxygen to the outer side of the ammonia gas, and the ammonia gas is stably combusted in a high-temperature area of the flames under the oxygen-enriched condition. According to the device, ignition fuel and oxygen are mixed and combusted to generate flames, the temperature of a high-temperature area of the flames reaches 2000 DEG C, ammonia gas and pure oxygen are heated and ignited, and the ammonia gas is high in combustion speed and not prone to flameout under the oxygen-enriched working condition, so that the ammonia gas can be stably combusted in the high-temperature area of the flames under the oxygen-enriched condition.
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