| 汽轮机中压缸正胀差超限的原因分析及改进措施 |
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| 引用本文： | 李书明. 汽轮机中压缸正胀差超限的原因分析及改进措施[J]. 热力发电, 2004, 33(4): 48-49,66 |
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| 作者姓名： | 李书明 |
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| 作者单位： | 粤华发电有限责任公司,广东,广州,510730 |
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| 摘 要： | 对黄埔发电厂2台300MW汽轮机中压缸在机组起动过程中长期出现正胀差超限问题进行了分析，认为中压缸本身结构不完善和蒸汽加热系统中加热蒸汽量不足，以及起动各阶段运行调整不够合理是主要原因。对此，提出了降低汽轮机中压缸正胀差的措施，实施后效果显著。
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| 关 键 词： | 汽轮机 中压缸 胀差 轴承座 汽缸 蒸汽加热系统 |
| 文章编号： | 1002-3364(2004)04-0048-02 |
CAUSE ANALYSIS OF EXCEEDING LIMIT FOR POSITIVE DIFFERENTIAL EXPANSION OF INTERMEDIATE PRESSURE CYLINDER ON STEAM TURBINES AND IMPROVEMENT MEASURES THEREOF |
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| LI Shuming et. CAUSE ANALYSIS OF EXCEEDING LIMIT FOR POSITIVE DIFFERENTIAL EXPANSION OF INTERMEDIATE PRESSURE CYLINDER ON STEAM TURBINES AND IMPROVEMENT MEASURES THEREOF[J]. Thermal Power Generation, 2004, 33(4): 48-49,66 |
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| Authors: | LI Shuming et |
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| Affiliation: | LI Shuming et |
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| Abstract: | The positive differential expansion exceeding limit for intermediate pressure cylinder often occurred on two 300MW steam turbines in Huangpu Power Plant has been analysed, it is considered that the main causes are as follows:(1) the structure of intermediate pressure cylinder proper isn't perfect; (2) insufficient heating steam flow in the steam heating system; (3) the operation adjustment in every stage of starting up isn't reasonable. For these, measures of decreasing the said positive differential expansion have been taken, and having obvious effectiveness after implementation of abovementioned measures. |
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| Keywords: | Steam turbine differentia expansion of IP cylinder steam heating facility sliding pin system |
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