What type of evaporator is typically cleaned with an acid solution and then neutralized?

The shell and coil evaporator is the type that is often cleaned with an acid solution and then neutralized. This cleaning process is necessary to remove scale and fouling that can accumulate on the heat exchange surfaces. Acid cleaning is effective because it dissolves mineral deposits that can hinder the efficiency of heat transfer within the evaporator.

After using an acid solution, it is crucial to neutralize the evaporator to ensure that any residual acid is neutralized before returning the system to operation. This prevents potential damage to the evaporator components and ensures safe operation.

In contrast, while other types of evaporators may also require cleaning, the cleaning methods and chemistries used can differ significantly. For example, some may be more suitable for mechanical cleaning or use less aggressive chemical cleaning techniques. Thus, the shell and coil evaporator is specifically known for this acid cleaning and neutralization process.