Why can’t the anti-erosion baffle be welded to the heat exchange tubes?
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Why can’t the anti-erosion baffle be welded to the heat exchange tubes? Is there gap corrosion?
Yes, it is possible to cause intergranular corrosion, while also increasing the vibration of the heat exchange tubes and restricting their thermal expansion and contraction.
The impact induces alternating loads, leading to premature failure
The welding strength is higher than that of the base material, and impact vibrations can easily cause leaks in the tube
To prevent impact stress from damaging the tube bundle structure
Then, using U-bolts to fix the impact shield to the heat exchange tubes also subjectes them to impact loads