核电固定管板式蒸汽发生器膨胀节设计
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摘要
通过计算壳体轴向应力、换热管轴向应力、换热管管板焊接接头拉脱力,说明核电固定管板式蒸汽发生器设置膨胀节的必要性。给出膨胀节主要性能指标,分析波形参数对膨胀节性能影响规律。根据该型蒸汽发生器运行环境和结构特点,设计波纹管膨胀节。最后对膨胀节进行应力评定、疲劳评定和稳定性校核。
By calculating shell axial stress,tube axial stress and pull-off force of tube to tube-sheet joints, show that bellows is necessary for nuclear power fixed tube-sheet steam generator. The key performance indicators of bellows is listed and the influences of bellows shape parameter for its key performance is analyzed. According to the operating environment and structural characteristics of the steam generator, bellows is designed. Finally, stress assessment, fatigue assessment and stability check are made for the bellows.
By calculating shell axial stress,tube axial stress and pull-off force of tube to tube-sheet joints, show that bellows is necessary for nuclear power fixed tube-sheet steam generator. The key performance indicators of bellows is listed and the influences of bellows shape parameter for its key performance is analyzed. According to the operating environment and structural characteristics of the steam generator, bellows is designed. Finally, stress assessment, fatigue assessment and stability check are made for the bellows.
引文
[1]毛希澜.换热器设计事[M].上海:上海科学技术出版社,1988:246-265
[2]丁伯民.换热器设计中设置膨胀节的判断和所需轴向伸缩量的计算[J].化工设备设计,1996,36(3):11-14
[3]薛明德.黄克智.李世玉.朱国栋.徐峰.GB151固定式换热器管板应力计算与校核方法的改进[J].压力容器,1996,28(8):44-48
[4]杨玲.膨胀节波纹管优化设计研究[D].重庆:西南农业大学,2003:14-23
[5]GB16749—1997.压力容器波形膨胀节[S].北京:中国标准出版社,1997:20-26
[6]李富科.金军.波形膨胀节的设计[J].石油工程建设,2004,30(1):27-30集团要闻
[2]丁伯民.换热器设计中设置膨胀节的判断和所需轴向伸缩量的计算[J].化工设备设计,1996,36(3):11-14
[3]薛明德.黄克智.李世玉.朱国栋.徐峰.GB151固定式换热器管板应力计算与校核方法的改进[J].压力容器,1996,28(8):44-48
[4]杨玲.膨胀节波纹管优化设计研究[D].重庆:西南农业大学,2003:14-23
[5]GB16749—1997.压力容器波形膨胀节[S].北京:中国标准出版社,1997:20-26
[6]李富科.金军.波形膨胀节的设计[J].石油工程建设,2004,30(1):27-30集团要闻