Calculation of tube sheet thickness for a weld-free, O-ring-sealed connection structure between the tube sheet and heat exchange tubes
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For devices with a structure similar to that of a heat exchanger, as shown in the diagram, the tube sheet is connected to the heat exchange tubes (made of ceramic) using a non-welding method with O-ring sealing. How is the thickness of the tube sheet calculated? SW6 does not include this type of connection
There are two recommended approaches for calculation: 1. Search for calculation methods used domestically and internationally that employ this connection method, and perform the calculations manually； 2. If the pipe ends are not connected by welding, then the only similar connection method is expansion joining. If it can be ensured that the operating conditions are similar to those suitable for expansion joining, as well as the effectiveness of using this connection structure, then expansion joining can be used for a simple verification. However, since it is a structure not specified in the standards, the effectiveness of the joining mechanism is unknown; therefore, it cannot be simply calculated based on strength values. Tests are necessary to determine the percentage of data related to this joint and welding, which can then be used in calculations for verification.
So far, no relevant calculation methods have been found; approach two is not practical in the short term due to the need for experimental methods
I don’t understand; unless your structure was created arbitrarily or copied from somewhere, but even if it was copied, there are still data used in it. The industrial application of many devices is achieved step by step through laboratory tests, pilot tests, and scale-up tests. Rule design, verification test analysis, comparative empirical design, and finite element stress analysis all require experiments or data support; otherwise, they cannot be carried out