蓄热式富氧燃烧技术的实验研究与模拟分析

Experiment Research and Simulation Analysis of Regenerative Oxygen-enriched Combustion Technology

富氧燃烧作为高温燃烧技术的一种,在现有的玻璃、冶金工业和热能工程领域应用广泛。为了进一步提高燃烧温度同时节约能源,研究分析了蓄热式燃烧技术与富氧燃烧相结合的燃烧方式。对蓄热式富氧燃烧技术的各自燃烧特点进行对比分析。采用CFD工程模拟软件FLUENT模拟工况下燃烧。通过模拟与实验结果相对比,得出氧浓度对炉内燃烧以及温度的影响;同时得出该情况下能耗降低。研究结果表明该技术不仅提高温度,降低运行成本,而且能够使适用范围更加广泛。

As a kind of high temperature combustion technology, oxygen-enriched combustion is widely used in the fields of glass industry, metallurgical industry and thermal power engineering. In order to further increase the combustion temperature and save energy simultaneously, this paper researched and analyzed the combustion mode which combines the regenerative combustion technology and oxygen-enriched combustion, and eontrastively analyzed each combustion features of regenerative oxygen-enriched combustion technology. CFD engineering simulation software FLUENT is adapted to simulating combustion under the operating condition. Through comparison of simulation and experimental result, the influence of oxygen concentration on combustion in furnace and temperature is confirmed; meanwhile under this condition, energy consumption is reduced. The research result indicates that this technology not only increases temperature and decrease operating cost, it also has more widely application scope.