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Experiment Study and Industrial Application of Slotted Bluff-Body Burner Applied to Deep Peak Regulation
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Author(s): Tianlong Wang (State Grid Hebei Energy Technology Services Co., Ltd., Shijiazhuang, China), Chaoyang Wang (State Grid Hebei Electric Power Research Institute, China), Zhiqiang Liu (State Grid Hebei Energy Technology Services Co., Ltd., Shijiazhuang, China), Shuai Ma (Wuhan Zhidian Huayuan Technology Co., Ltd., Wuhan, China)and Huibo Yan (State Grid Hebei Energy Technology Services Co., Ltd., Shijiazhuang, China)
Copyright: 2024
Volume: 17
Issue: 1
Pages: 15
Source title:
International Journal of Information Technologies and Systems Approach (IJITSA)
Editor(s)-in-Chief: Sangbing (Jason) Tsai (International Engineering and Technology Institute (IETI), Hong Kong)and Wei Liu (Qingdao University, China)
DOI: 10.4018/IJITSA.332411
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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.
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