| 防止汽轮机超速对抽汽逆止门逻辑的修改 |
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| 引用本文： | 路永刚.防止汽轮机超速对抽汽逆止门逻辑的修改[J].锅炉制造,2012(4):62-64. |
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| 作者姓名： | 路永刚 |
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| 作者单位： | 辽宁阜新金山煤矸石热电有限公司,辽宁 阜新,123006 |
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| 摘 要： | 汽轮机超速事故是对电厂中发电设备破坏性最大的事故,所以发电企业对汽轮机超速的事故都尤为关注。2011年我厂#1、2机组由于发电机保护动作信号出现,机组ETS保护动作,在调阅SOE(事故追忆时)发现各抽汽逆止门关闭时间过长。后来通过对4台机组抽汽逆止门逻辑的整改,使抽汽逆止门关闭时间大大缩短。
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| 关 键 词： | 汽轮机超速 抽汽逆止门 关闭时间 逻辑整改 |
The logic revision about Steam Extraction Non- Return Valve against over- speed of steam turbine |
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| Lu Yonggang.The logic revision about Steam Extraction Non- Return Valve against over- speed of steam turbine[J].Boiler Manufacturing,2012(4):62-64. |
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| Authors: | Lu Yonggang |
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| Affiliation: | Lu Yonggang (JinShan Gangue Thermoelectric Limited company ,Fuxin 123006) |
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| Abstract: | The over-speed accident of steam turbine will seriously destroy the generating equip-ments in electric power plant, the electrical generation enterprises pay great attention to the over- speed accident of steam turbine. In 2008 the ETS protection acted when the generator protection ap-peared in No 1 and 2 generator units, we found the shut time of steam extraction non-return valve was too long in reading sequence of event system. So the logic revision was taken to steam extraction non-Return valve in 4 units to reduce the shut time significantly. |
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| Keywords: | over - speed accident of steam turbine steam extraction non - return valve the shuttime the logic revision |
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