What method can be used to inspect a quench pipe?

The use of a fiber optic camera to inspect the inside of a quench pipe is an effective method because it allows for a non-invasive examination of the pipe without needing to disassemble it. This technology enables inspectors to visualize the interior condition of the pipe, identify potential blockages, corrosion, or other issues that may not be easily detectable through other means. It is especially advantageous in environments where access is limited or where the integrity of the system must be maintained during inspection.

In contrast, annual helium drainage, while necessary for maintenance and safety procedures, does not provide a direct visual assessment of the pipe's condition. Similarly, taking the pipe apart annually can be impractical and could potentially disrupt the operation of the system or introduce new risks. Therefore, using a fiber optic camera stands out as the most efficient and least intrusive method for inspecting a quench pipe.