一起锅炉水冷壁爆管事故原因分析及防范措施

论文编号:RN050  论文字数:6455,页数:26

论文题目：一起锅炉水冷壁爆管事故原因分析及防范措施
摘    要

    锅炉水冷壁是锅炉的主要蒸发设备，水冷壁一旦泄漏将直接威胁锅炉的安全运行，从而导致整台单元机组的非计划停运。本文主要通过一系列试验得出的数据，分析了一起锅炉水冷壁爆管的原因，提出预防对策，对燃煤电厂目前面临的入炉煤煤质低劣，含硫量高的实际情况，如何预防高温腐蚀具有较实际的借鉴意义。
 
 
 论文类型：应用研究
 
 关 键 词：锅炉水冷壁爆管；高温腐蚀；燃烧调整试验；原因分析；预防对策。
 
 Title: Boiler water wall tube explosion accident cause analysis and the preventive measures
ABSTRACT
 Boiler water wall boiler main evaporation equipment, water-cooling wall once the leakage will be a direct threat to the safe operation of the boiler, thereby causing the entire unit the unplanned outage. This article mainly through a series of experiments data, analysis of boiler water wall tube explosion causes, puts forward the prevention measures of coal fired power plant, currently facing the coal into the furnace with high sulfur content coal quality is inferior, the actual situation, how to prevent corrosion at high temperature has more practical significance.

TYPE OF THESIS: Application Research of

KEY WORDS: Boiler water wall tube explosion; high temperature corrosion; combustion adjustment test; analysis of causes; preventive measures.

目  录
1 绪论 1
2 硫化物高温腐蚀机理 3
2.1游离态硫引起的高温腐蚀 3
2.2硫化氢气体引起的高温腐蚀 3
2.3还原性气氛引起的高温腐蚀 4
3 试验情况 5
3.1试验测点布置 5
3.2壁面气氛测试结果 6
4 #5锅炉水冷壁管高温腐蚀原因 15
4.1煤质含硫量高 15
4.2煤粉气流的冲刷 15
4.3煤质灰分大、发热量低 15
4.4煤粉均匀性变差 16
5水冷壁高温腐蚀预防对策 17
6 结论与展望 18
致    谢 19
参考文献 20

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