锅筒内壁裂纹原因分析与防治措施
Crack Analysis and Prevention Measures of Boiler Barrel Internal Face
摘 要
结合火电厂锅炉锅筒内壁裂纹的两个实例, 通过对裂纹发生位置、特征及相关试验, 分析了锅筒内壁裂纹产生的原因。结果表明:锅筒内壁存在凹坑、凹槽缺陷并萌生裂纹, 在各种应力作用下裂纹不断扩展, 最终导致开裂。最后提出了防治锅筒内壁产生裂纹的措施。
裂纹分析
防治措施
thermal power boiler barrel
crack analysis
prevention measure
Abstract
With two examples of cracks on the internal surface of boiler barrel in a thermal power plant, the cause of crack formation was analyzed by analyzing the position and features of the cracks and related physical and chemical testing. The result show pits and grooves defects existing on the internal surface of boiler barrel led to the initiation of cracks. The cracks grew gradually under the action of all kinds of stresses, and finally induced cracking. Prevention and control measures were put forwards to avoid the cracks formation finally.
中图分类号 TG115.9
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收稿日期 2011/5/12
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备注黄桥生(1980-),男,工程师,学士。
引用该论文: HUANG Qiao-sheng,YANG Xiang-wei,HU Bin,YAO Yong-qi,GONG Kai-yun. Crack Analysis and Prevention Measures of Boiler Barrel Internal Face[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2011, 47(12): 806～809
黄桥生,杨湘伟,胡彬,姚勇琦,龚开云. 锅筒内壁裂纹原因分析与防治措施[J]. 理化检验－物理分册, 2011, 47(12): 806～809
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参考文献
【1】雷中黎. 锅炉汽包裂纹原因及处理措施探讨[J]. 中国电力,1990(5):35-36.
【2】蔡文和. 电站重要金属部件的失效及其监督[M]. 北京:中国电力出版社,2009:161-165.
【2】蔡文和. 电站重要金属部件的失效及其监督[M]. 北京:中国电力出版社,2009:161-165.
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