Experiment Study and Industrial Application of Slotted Bluff-Body Burner Applied to Deep Peak Regulation

IF 0.8 Q4 Computer Science
Tianlong Wang, Chaoyang Wang, Zhiqiang Liu, Shuai Ma, Huibo Yan
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Abstract

During the deep peak shaving period, the boiler needs to operate at a lower load, so higher requirements were set for the boiler's stable combustion. In order to better evaluate and compare the stable ignition capacity of bluff-body burners and slotted bluff-body burners, guidance and calculation support for the design of boiler deep peak shaving were needed. This study adopted the reflux heating chain ignition analysis method to study the differences in the steady combustion mechanism between the bluff-body burner and the slotted bluff-body burner. A thermal combustion experiment was conducted in employing the single angle coal powder combustion furnace. The experimental results were compared against the theoretical analysis results. In addition, a study was conducted on the application of slotted bluff-body burners in the deep peak shaving of a 330MW unit power plant boiler. The results showed that as long as the small slot flow can catch fire, the mixed temperature of the reflux fluid of the slotted bluff-body burner will be higher than that of the bluff body burner. This will enhance its steady combustion ability. The combustion test results were found to be consistent with the analysis results, indicating that when the slotted bluff-body burner is used on the 330MW unit, the boiler combustion is in good condition. In this case, it has a stable combustion capacity of 66MW (20% economic continuous rating) without oil injection at low loads. This study revealed the advantages of the slotted bluff-body burner in terms of its steady combustion mechanism compared to traditional bluff-body burners. It verified the feasibility for boiler deep peak shaving in practical applications. This is of great significance for improving the flexibility of coal-fired power generation units, enhancing the flexibility of the power system, and promoting carbon reduction.
槽口钝体燃烧器深调峰试验研究及工业应用
在深度调峰期间,锅炉需要在较低的负荷下运行,对锅炉的稳定燃烧提出了较高的要求。为了更好地评价和比较钝体燃烧器与开槽钝体燃烧器的稳定点火能力,需要对锅炉深度剃峰设计进行指导和计算支持。本研究采用回流加热链点火分析方法,研究钝体燃烧器与开槽钝体燃烧器稳态燃烧机理的差异。采用单角煤粉燃烧炉进行了热燃烧实验。实验结果与理论分析结果进行了比较。此外,还研究了开槽崖体燃烧器在某330MW机组电厂锅炉深度调峰中的应用。结果表明,只要小槽流能够着火,槽式钝体燃烧器回流液的混合温度就会高于钝体燃烧器。这将提高其稳定燃烧能力。燃烧试验结果与分析结果一致,说明在330MW机组上采用开槽式钝体燃烧器时,锅炉燃烧状况良好。在这种情况下,它在低负荷下无喷油的稳定燃烧能力为66MW(20%经济连续额定值)。研究表明,与传统的钝体燃烧器相比,开槽钝体燃烧器在稳定燃烧机制方面具有优势。在实际应用中验证了锅炉深度调峰的可行性。这对于提高燃煤发电机组的灵活性,增强电力系统的灵活性,促进碳减排具有重要意义。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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12.50%
发文量
29
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