Heat retaining refractory linings can and will over time break down, when this break down occurs, heat is able to penetrate through to outer walls or surfaces. Dependent upon the purpose of the lining, this can either be a financial loss due to an inefficient system or worse a safety risk where external shells are quickly weakened through an increase of heat and internal pressures.
Regular monitoring of refractory linings will allow for trend analysis and an identification of breakdowns occurring. When early identification of defects are reported, the plant is able to be scheduled for shutdown and repair, eliminating costly unplanned downtime due to failure.
A thermal imaging inspection is able to identify the location and size of breakdowns in the lining, which is complete whilst normal operations continue, preventing a need to shut down and isolate plant so can be complete at any time.