| 某660 MW 超临界直接空冷机组抽真空的问题分析及处理 |
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| 引用本文： | 周红梅.某660 MW 超临界直接空冷机组抽真空的问题分析及处理[J].电力建设,2010,31(6):74-76. |
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| 作者姓名： | 周红梅 |
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| 作者单位： | （华北电力科学研究院（西安）有限责任公司，西安市，710075） |
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| 摘 要： | 某电厂扩建工程660 MW超临界直接空冷机组在首次冷
态启动前的真空拉升过程中出现了预抽真空时间过长，汽机
旁路打开后真空急剧下降但凝结水回水温度无变化等现象，
对其产生原因进行了分析，并提出了处理措施，为其他试运机
组出现同类现象提供借鉴和参考。
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| 关 键 词： | 660 MW超临界机组 直接空冷 抽真空 冷态启动 真 /> 空拉升 凝汽器 |
Analysis and Treatment of the Vacuumization Problems of a 660 MW Supercritical Direct Air-cooling Unit |
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| ZHOU Hong-mei.Analysis and Treatment of the Vacuumization Problems of a 660 MW Supercritical Direct Air-cooling Unit[J].Electric Power Construction,2010,31(6):74-76. |
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| Authors: | ZHOU Hong-mei |
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| Affiliation: | ZHOU Hong-mei(North China Electric Power Research Institute(Xi＇an) Co.Ltd.,Xi＇an 710065,China) |
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| Abstract: | The paper analyzes the vacuumization problems before the first cold-start of the 660 MW supercritical direct air-cooling unit of a power plant expansion project,including the long pre-vacuum time and no change of backwater temperature of the condensation water when vacuum decreases sharply after opening of the steam turbine bypass,and relevant treatment measures are proposed,which can provide a reference for other steam turbine units when similar problems appear. |
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| Keywords: | 660 MW supercritical unit direct air-cooling vacuumization cold start vacuum increase condenser |
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