Heat exchangers: Advantages and disadvantages of hydraulic expansion and mechanical expansion
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Advantages and disadvantages of hydraulic expansion and mechanical expansion in heat exchangers 1. Quality 2. Efficiency 3. Cost
Traditional mechanical rolling is a common method for expanding the tube sheet of single-tube-sheet heat exchangers. The surface finish of the inner surface after expansion is compromised due to damage caused by rolling, and poor interference fit control results in weak pulling force and poor sealing stability. The use of a double-shell plate structure can completely overcome the disadvantages of traditional mechanical roller tubes.
Hydraulic expansion bonding technology can be used to achieve strong expansion bonding in deep holes