Selection of tube sheet thickness for clamped U-tube heat exchangers (octagonal gaskets)

2017-12-30View Original

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In GB/T151, the thickness of the U-shaped or type A tube sheet generally refers to the thickness in the middle. The standard states that the thickness of the partition grooves and the thickness of the structural grooves need to be deducted, but has anyone ever designed a U-shaped tube sheet held by octagonal gaskets? In my personal opinion, the maximum stress in the U-shaped tube sheet of type A occurs in the middle. Unlike flat gaskets, octagonal gaskets provide radial self-sealing; flat gaskets, on the other hand, offer surface sealing. Therefore, I believe that the grooves in octagonal gaskets do not need to be taken into account when calculating the tube sheet. Are there any other opinions?

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Selection of tube sheet thickness for clamped U-tube heat exchangers (octagonal gaskets)

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