| "W"火焰锅炉炉膛负压波动大的原因分析与对策 |
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| 引用本文： | 宋绍伟,邱现堂,杨真学,周海清,李琳,刘晓宏."W"火焰锅炉炉膛负压波动大的原因分析与对策[J].中国电力,2006,39(8):45-48. |
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| 作者姓名： | 宋绍伟 邱现堂 杨真学 周海清 李琳 刘晓宏 |
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| 作者单位： | 1. 山东菏泽发电厂,山东,菏泽,274032
2. 西安热工研究院有限公司,陕西,西安,710032 |
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| 摘 要： | 介绍了“W”火焰锅炉燃烧系统的设计特点,该锅炉运行过程中出现了炉膛负压波动大、燃烧不稳定的问题。对该炉实际运行情况的分析研究表明:锅炉控制系统的稳定性偏低、燃烧调整不平衡、燃煤煤种偏离设计煤种过大以及各煤粉管道风煤比偏差过大是造成炉膛负压波动大的关键问题。通过优化调整燃烧、加强燃用煤质管理、减小各煤粉管道风煤比偏差、增加炉膛卫燃带的敷设面积、加大磨煤机出力裕度,保证满负荷运行中合理的煤粉细度等措施,基本消除了炉膛负压波动大的问题,同时还降低了锅炉飞灰可燃物质量分数。
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| 关 键 词： | “W”火焰锅炉 炉膛负压 燃烧器 |
| 文章编号： | 1004-9649（2006）08-0045-04 |
| 收稿时间： | 2006-03-21 |
| 修稿时间： | 2006-05-18 |
Reason analysis for considerable fluctuation of negative pressure in furnace of W-fired boilers and countermeasures |
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| SONG Shao-wei,QIU Xian-tang,YANG Zhen-xue,ZHOU Hai-qing,LI Lin,LIU Xiao-hong.Reason analysis for considerable fluctuation of negative pressure in furnace of W-fired boilers and countermeasures[J].Electric Power,2006,39(8):45-48. |
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| Authors: | SONG Shao-wei QIU Xian-tang YANG Zhen-xue ZHOU Hai-qing LI Lin LIU Xiao-hong |
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| Abstract: | In view of the problems in boiler operation such as the pressure fluctuation and unstable combustion in 300 MW Heze Power Plant,the design features of W-fired boilers were introduced.The main reasons for considerable negative pressure fluctuation are lower stability of control system,imbalanced adjustment of combustion,larger deviation of the fired coal from the designed and the air/coal ratio of pulverizer.Several countermeasures were taken to solve the above-mentioned problems,including optimizing the combustion,enhancing coal management,reducing the deviation of air/coal ratio in pulverizer,increasing safeguard belt zone,improving pulverizer output,ensuring the rational pulverized coal fineness etc. |
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| Keywords: | W-fired boiler negative pressure in furnace burner |
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