How is the height of the impact shield determined?
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There is a type of impact shield that is *shaped and welded to the cylinder; the manufacturing requirements specify that it should be at least 80 mm away from the cylinder wall. Is there any particular reason for this? The imported size is 250 mm; it is a pressure vessel that falls outside the standard categories
The purpose of the anti-scour plate is to prevent the fluid from directly scouring the heat exchange tubes. Increasing its height serves to reduce the resistance at this location; too low a resistance leads to excessive flow, while too high a height affects the number of tubes that can be installed, resulting in an enlarged shell. As a general rule, we ensure that the minimum flow area around the anti-scour plate is more than 1.2 times the area of the inlet pipe. It should be at least as large as the area of the inlet pipe; if not, other methods must be used to address this issue. (such as making holes in the impact shield, etc.)