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Failure Analysis of Tube Coils in a Boiler Utilizing Waste Heat
Author(s): 
Pages: 24-26
Year: Issue:  1
Journal: ENERGY CONSERVATION TECHNOLOGY

Keyword:  废热锅炉汽水两相流传热热疲劳失效分析;
Abstract: 本文针对废热锅炉取热管的失效进行了调查,从取热管汽水两相流动及材料学的角度,对事故进行分析研究.认为取热管的失效主要由于热疲劳造成的.汽水两相流动与传热分析的结果可以解释破口产生的原因、发生部位及疲劳裂纹的取向.提高水平取热管的工质质量流速,可有效地避免汽水分层、管间脉动及传热恶化,显著延长设备的运行寿命.
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