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| 某火力发电厂600MW机组低温再热蒸汽管道恒力吊架吊杆断裂原因分析及解决方案 | |
| 引用本文： | 覃泽棒,黄浩坤,肖志前. 某火力发电厂600MW机组低温再热蒸汽管道恒力吊架吊杆断裂原因分析及解决方案[J]. 广东电力, 2012, 25(3): 109-113 |
| 作者姓名： | 覃泽棒 黄浩坤 肖志前 |
| 作者单位： | 1. 广州宇阳电力科技有限公司,广东广州,510080 2. 广州粤能电力科技开发有限公司,广东广州,510080 3. 广东电网公司电力科学研究院,广东广州,510080 |
| 摘 要： | 针对某火电厂锅炉低温再热蒸汽管道恒力吊架螺纹吊杆多次发生断裂现象,通过支吊架分布及其断裂分析、材质及其断口分析、断裂力学计算,得出吊杆断裂原因为管道异常振动对吊杆产生弯曲疲劳作用所致。根据恒力吊架本身结构特点及管道运行状况提出行之有效的解决方案,可提高机组安全经济运行。 |
| 关 键 词： | 火力发电厂 蒸汽管道 恒力吊架 螺纹吊杆 疲劳 断裂 |
Cause Analysis on Suspender Breakage of Constant Force Hanger for Low-temperature Reheating Steam Piping in 600 MW Units in a Fossil-fuel Power Plant and the Solutions |
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| QIN Zebang , HUANG Haokun , XIAO Zhiqian. Cause Analysis on Suspender Breakage of Constant Force Hanger for Low-temperature Reheating Steam Piping in 600 MW Units in a Fossil-fuel Power Plant and the Solutions[J]. Guangdong Electric Power, 2012, 25(3): 109-113 | |
| Authors: | QIN Zebang HUANG Haokun XIAO Zhiqian |
| Affiliation: | 1.Guangzhou UNISUN Power Technology Co.,Ltd,Guangzhou,Guangdong 510080,China;2.Guangzhou Yueneng Power Technology Development Co.,Ltd.,Guangzhou,Guangdong 510080,China;3.Electric Power Research Institute of Guangdong Power Grid Corporation,Guangzhou,Guangdong 510080,China) |
| Abstract: | Aiming at suspender breakages of constant force hanger for low-temperature reheating steam piping in fossil-fuel power plant,the paper concludes that suspender breakage results from flexure-torsion fatigue caused by abnormal vibration of piping via hanger distribution and its breakage analysis,analysis on material and fracture as well as fracture mechanics.Effective solutions are brought forward in accordance with structure characteristics of constant force hanger and operating condition of piping to improve safe and economic operation of units. |
| Keywords: | fossil fuel power plant steam piping constant force hanger screwed suspender fatigue breakage |
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