["大直径薄wanddünnees常压管道wanddickkheit und Spannweite berechnen

2018-11-14View Original

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大直径薄壁常压管道壁厚和跨距怎样计算呢？有一个输送烟气的管道，正压管道，压力330Pa，管径φ300mm。请问如何计算壁厚（暂不考虑腐蚀裕量）和计算跨距？如果仅依据管道刚度和强度计算跨距，计算出来数据非常大。这么大直径的管道应该是需要设置加强圈的，但是管道类计算加强圈的一般是负压管道或者压力较高的管道，与这种情况不太一样，没法应用GB551压力容器里面加强圈的计算方法计算。欢迎各位大侠指教。

Reply #22018-11-14

烟气管道壁厚和纵向加固肋的间距参考《火力发电厂烟风煤粉管道设计技术规程》（DL T551-225）

Reply #32018-12-13

要考虑支架部位局部加强否则很可能局部变形，和烟风道差不多，一般筒体强度和刚度条件确定的跨度很大

Reply #42018-12-13

楼主问的是支吊架间距，不是加固肋间距

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