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大口径放空管道低温下材质选择及局部应力校核

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摘要 在放空管道处于较低的温度下,超出了碳钢的使用温度极限,可以通过判断低温低应力工况来判断管道在此低温下碳钢管道是否可以继续使用,针对实际项目分析,通过计算看是否满足相关规范使用要求,保证ASMEB31.3所允许的应力系数<0.3;通过对大口径薄壁管道的局部应力分析保证管道使用的安全。若经过分析后在低温低应力工况下能够使用碳钢材质会大大节约投资,增加工程建设的经济性。
作者 李凤新
出处 《中国石油和化工标准与质量》 2020年第13期21-22,共2页 China Petroleum and Chemical Standard and Quality
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