Corrosion on an exchanger shell is often found at the location of:

Corrosion on an exchanger shell is often found at the location of baffles primarily due to the flow patterns and the associated turbulence they create. Baffles are employed within heat exchangers to direct the flow of fluids, which not only enhances heat transfer but can also lead to areas of localized flow stagnation. This stagnation can increase the potential for corrosion because the stagnant fluid can have a higher concentration of corrosive elements.

Additionally, the interaction between the fluid flow and the baffles might introduce localized areas of turbulence, which can accelerate corrosion processes such as pitting or erosion. The material and condition of the baffles, as well as the type of fluids being processed, play a significant role in determining the corrosion rates. With this knowledge, corrosion prevention strategies can be effectively designed, particularly focusing on the regions around baffles where issues are likely to arise.

In summary, the positioning and function of baffles in heat exchangers make them hotspots for corrosion activity, highlighting the importance of regular inspection and maintenance in these areas.