The traditional approach to determine the internal condition of pressure vessels is by Intrusive Visual Inspection(IVI).This involves the removal of the vessel from service,isolation,cleaning,purging before man entry is possible.There are significant safety risks associated with this approach as well as the costs associated with loss of plant availability.Non-Intrusive Inspection(Nil)allows the effective inspection of pressure vessels from the outside,whilst the vessel remains in service therefore eliminating the loss of plant down time.Effective Nil offers confidence in the current condition of the vessel to a degree that is at least equivalent to IVI and generates quantifiable data which may be used for comparison in future inspections.
展开▼
