| 汽轮机阀壳与汽缸强度计算及寿命评估 |
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| 引用本文： | 李颖. 汽轮机阀壳与汽缸强度计算及寿命评估[J]. 发电设备, 2004, 18(4): 186-189 |
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| 作者姓名： | 李颖 |
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| 作者单位： | 华东电力试验研究院,上海,200437 |
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| 摘 要： | 对300MW汽轮机承受高温、高压和频繁启停的部件,包括主汽阀阀壳和高、中压汽缸进行了强度计算及寿命评估。考核了其安全性和蠕变寿命损耗,以及在启停过程中由于交变应力而造成的低周疲劳寿命损耗。
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| 关 键 词： | 汽轮机 汽缸 阀壳 强度计算 寿命评估 |
| 文章编号： | 1671-086(2004)04-0186-04 |
| 修稿时间： | 2003-12-20 |
Strength Calculation and Life Expectancy Evaluation of Steam Turbine Valve and Cylinder Casings |
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| Abstract: | The paper reports on strength calculations and life expectancy calculations performed for 300MW turbine components, which are exposed to high temperature, high pressure and often occurring stop and starts. Included are main stop valve casings and high as well as middle pressure cylinder casings. Operational safety, creep life consumed as well as low cycle fatigue life consumption, caused by alternating stress during turbine starts and stops, are being exemined. |
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| Keywords: | steam turbine cyclinder casing valve casing strength calculation life evaluation |
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