| 600MW超临界直接空冷机组空冷系统防冻技术改造 |
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| 引用本文： | 耿群,王艳丽.600MW超临界直接空冷机组空冷系统防冻技术改造[J].内蒙古电力技术,2012,30(2):94-96. |
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| 作者姓名： | 耿群 王艳丽 |
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| 作者单位： | 内蒙古国华呼伦贝尔发电有限公司,内蒙古海拉尔,021025 |
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| 摘 要： | 针对极寒地区超临界直接空冷机组冬季易冻结问题,国华呼伦贝尔电厂在机组建设阶段进行了主汽疏水及在第2、6逆流段增设真空系统温度测点及在蒸汽蝶阀后增设温度测点的技术改造.改造后经过-47℃环境温度下运行与-30℃环境温度下启、停检验,未发生冻结现象,防冻效果良好,为极寒地区超临界直接空冷机组防冻提供了借鉴.
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| 关 键 词： | 超临界直接空冷机组 极寒地区 主汽疏水 蒸汽蝶阀 温度测点 防冻 |
Antifreezing Technology Conversion to Air Cooled System of 600 MW Supercritical Direct Air Cooled Units |
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| Geng Qun
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Wang Yanli.Antifreezing Technology Conversion to Air Cooled System of 600 MW Supercritical Direct Air Cooled Units[J].Inner Mongolia Electric Power,2012,30(2):94-96. |
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| Authors: | Geng Qun Wang Yanli |
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| Affiliation: | (Inner Mongolia Guohua Hulunbeier Power Generation Co.,Ltd.,Inner Mongolia Hailar 021025) |
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| Abstract: | Supercritical direct air cooling units for extreme cold regions in winter are easy to freeze.Technical revamp of main steam drain,adding vacuum temperature measuring point in No.2 and No.6 countercurrent segment and temperature measuring point after the addition of steam butterfly valves is carried out during unit construction phase of Guohua Hulunbeier Power Plant.After technical transformation,power units can operate in-47 ℃ ambient temperature normally,and can run start and stop in ambient temperature of-30 ℃ without any freezing phenomenon occurred.It provides successful experiences of antifreeze to supercritical direct air cooling units in extreme cold regions. |
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| Keywords: | supercritical direct air cooled units extreme cold regions main steam drain steam butterfly valves temperature measuring point antifreeze |
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