| 凝汽器顶部冷却管断裂原因分析 |
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| 引用本文： | 孙金荣,刘胜祥.凝汽器顶部冷却管断裂原因分析[J].电站系统工程,1997,13(2):28-32. |
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| 作者姓名： | 孙金荣 刘胜祥 |
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| 作者单位： | 哈尔滨汽轮机有限责任公司 |
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| 摘 要： | 冷却管疲劳断裂的原因是由于高速汽流冲击使铜管产生振动而引起的高周疲劳断裂；冷凝器铜管的工作环境使疲劳极限大为降低，加剧了疲劳裂纹的扩展。
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| 关 键 词： | 环状振动 回复 再结晶 高频 疲劳断裂 措施 |
Reasons of Condenser Top Cooling Tube Cracking |
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| Sun Jinrong et al..Reasons of Condenser Top Cooling Tube Cracking[J].Power System Engineering,1997,13(2):28-32. |
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| Authors: | Sun Jinrong |
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| Affiliation: | Sun Jinrong et al. |
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| Abstract: | Reason of condenser cooling tube cracking was HF fatigue failure due to high speed steam flow impacting copper pipe which caused vibration. The fatigue limit of condenser copper tube was reduced by working condition which aggravated the spread of crack. |
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| Keywords: | annular vibration \ restore recrystallization \ HF fatigue failure \ measures |
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