| 300MW机组给水调节阀膨胀节疲劳设计 |
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| 引用本文： | 陈立新,曹雷生,李凤. 300MW机组给水调节阀膨胀节疲劳设计[J]. 锅炉制造, 2000, 0(1): 53-56 |
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| 作者姓名： | 陈立新 曹雷生 李凤 |
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| 作者单位： | 哈尔滨锅炉厂有限责任公司，哈尔滨 150046 |
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| 摘 要： | 该调节阀采用的膨胀节是非波形的，国内外没有可直接使用的设计方法。本文应用弹性力 理论、Ａ．ＣＡＳＴＩＧＬＩＡＮＯ定理、圣维南力矩－面积法第二定理和ＡＳＭＥⅧ第一分篇附录ＣＣ，通过理论推导及数学计算，获得了针对膨胀节的应力分析和疲劳寿命估算的新方法。该设计计算方法经过多年应用证明是安全可靠的。
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| 关 键 词： | 膨胀节 应力分析 疲劳设计 给水调节阀 锅炉 |
| 修稿时间： | 1999-10-05 |
Fatigue Design of 300 MW Unit Feedwater Regulating Valve Expansion Joint |
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| Chen Lixin,Chao Leisheng,Li Feng. Fatigue Design of 300 MW Unit Feedwater Regulating Valve Expansion Joint[J]. Boiler Manufacturing, 2000, 0(1): 53-56 |
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| Authors: | Chen Lixin Chao Leisheng Li Feng |
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| Abstract: | No design method available for direct application at home and abroad for the non - waveshape expansion joint of this regulating valve. Based on elastic mechanics theory, A. CASTIGLINO theorom Saint - Venant moment - area method second theorem and Apendix cc, Division I, section Ⅷ, ASME, by theoretical deduction and mathematical calculation, this article concludes to a new method for stress analysis and fatigue life evaluation of the expansion joint, proved as safe and reliable in years of application. |
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| Keywords: | expansion joint stress analysis fatigue design |
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