| 某发电厂锅炉燃烧器喷嘴着火和结焦分析 |
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| 引用本文： | 朱松森,温智勇.某发电厂锅炉燃烧器喷嘴着火和结焦分析[J].广东电力,2012,25(4):100-102. |
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| 作者姓名： | 朱松森 温智勇 |
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| 作者单位： | 1. 广东省电力技工学校,广东广州,510520
2. 广东电网公司电力科学研究院,广东广州,510080 |
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| 摘 要： | 广东省某发电厂3号锅炉改烧烟煤后多次发生燃烧器喷嘴着火和结焦的现象,通过割管检查和给粉机转速试验,以及与同类型锅炉进行运行工况的比较,确定燃烧器喷嘴着火和结焦的主要原因是煤粉在粉管间隙处和喷嘴凹坑部位沉积、燃煤挥发分质量分数过高、周界风量少等,并提出相应的整改建议。
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| 关 键 词： | 燃煤锅炉 燃烧器 喷嘴 烟煤 着火 结焦 |
Analysis on Ignition and Coking in Combustor Nozzle in Boiler of a Power Plant |
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| ZHU Songsen
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WEN Zhiyong.Analysis on Ignition and Coking in Combustor Nozzle in Boiler of a Power Plant[J].Guangdong Electric Power,2012,25(4):100-102. |
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| Authors: | ZHU Songsen WEN Zhiyong |
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| Affiliation: | 1. Guangdong Electric Power School, Guangzhou, Guangdong 510520, China; 2. Electric Power Research Institute of Guangdong Power Grid Corporation, Guangzhou, Guangdong 510080, China) |
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| Abstract: | There are ignition and coking in combustor nozzle in boiler No. 3 in a power plant after turning to soft coal. By piping-cutting examination and rotating speed test on pulverized coal feeder as well as comparison of operating condition with same boilers, it is determined that ignition and coking in combustor nozzle result from sediment of pulverized coal in gaps of pulverized coal tube and pit of nozzle, excessive mass fraction of volatile matter, less air delivery around and etc. Besides, the corresponding proposals for improvement are tabled. |
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| Keywords: | coal-fired boiler combustor nozzle soft coal ignition coking |
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