Recovery Boiler Tube Temperature Excursions Caused By Smelt Contact

机译：熔体接触引起的回收锅炉管温度波动

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Experiments showed that sudden contact with flowing molten smelt can result in tube temperature excursions of considerable magnitude. A frozen smelt layer on the tube surface reduces the magnitude of excursions and the water-side cooling environment plays a crucial role. A special probe was constructed that was capable of measuring both the heat flux and water-side heat transfer coefficient when the water-cooled probe was inserted into a molten smelt stream. All of the heat transfer coefficients, calculated from the temperature data, were in the transition boiling region. These results may have application to tube temperature excursions at primary air ports, which have been associated with tube cracking problems.

机译：实验表明，突然接触流动的熔体会导致相当大的管温偏移。管表面的冻结熔体层减少了偏移的幅度，水侧冷却环境起着至关重要的作用。构造了一个特殊的探头，当将水冷探头插入熔融熔炼流中时，它既可以测量热通量，又可以测量水侧的传热系数。根据温度数据计算出的所有传热系数都在过渡沸腾区域内。这些结果可能适用于一次风口处的管温偏移，这与管破裂问题有关。

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来源
《International Chemical Recovery Conference v.1; 20040606-20040610; Charleston,SC; US》|2004年|P.543-553|共11页
会议地点 Charleston SC(US);Charleston SC(US)
作者
Chee Vui Tay; Masahiro Kawaji; Honghi Tran; Thomas Grace;
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作者单位

Pulp Paper Centre and Department of Chemical Engineering Applied Chemistry University of Toronto Toronto, ON, CANADA;

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会议组织
原文格式 PDF
正文语种 eng
中图分类造纸工业;
关键词
recovery boiler; smelt; primary air port; tube cracking; corrosion; temperature excursions;

机译：回收锅炉;熔炼;一次风口;管破裂;腐蚀;温度偏移;

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3. EPRI International Conference on Failures and Diagnostics of Tubes in Steam Boilers at Thermal Power Stations and in the Heat Recovery Boilers of Combined-Cycle Units [J] . T. I. Petrova, A. Yu. Petrov Thermal engineering . 2005,第7期

机译：EPRI国际会议，关于火力发电厂的蒸汽锅炉和联合循环机组的热回收锅炉中的管道故障和诊断
4. Recovery Boiler Tube Temperature Excursions Caused By Smelt Contact [C] . Chee Vui Tay, Masahiro Kawaji, Honghi Tran, 11th International Symposium on Corrosion in the Pulp and Paper Industry . 2004

机译：熔体接触引起的回收锅炉管温度波动
5. Causes of primary air port tube temperature excursions in recovery boilers. [D] . Tay, Chee Vui (Desmond). 2003

机译：回收锅炉一次风口管温度偏移的原因。
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8. Influence of chlorides and sulphureous compounds on the corrosion of superheater tubes in boilers with special consideration on kraft recovery boilers [R] . Bruno, F. 1999

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Recovery Boiler Tube Temperature Excursions Caused By Smelt Contact

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