What is Boiler and Refractory?
A Boiler’s function is to produce large amounts of hot water and steam, so in order to perform effectively, boilers use an enormous amount of heat. In some boilers, temperatures get so high, they can melt many metals.
To contain this heat, and to protect certain boilers, a special heat-resistant material is used. That is called the Refractory. These refractories are non-metallic materials that are difficult to fuse or melt. They are used to form burner rings, and to cover the inside of inspection doors in the boilers. It is also used to protect other equipment that may be exposed to heat or corrosive gases due to rapid temperature change that refractories undergo, they periodically require repair.
If refractories get damaged, it also damages the boiler. To avoid catastrophic failure, regular inspection of equipment with Elite Thermography using Thermography should be conducted.
Thermography uses infrared thermal cameras to scan and detect emitted infrared radiation from an object. Everything that is above absolute zero temperature radiates infrared, thus, thermography enables us to see even in complete darkness.
Thermograms or Thermal Images consist of the thermal patterns of a target object or area. Hot objects emit more amount of infrared radiation than cold objects.
Infrared Testing or Thermographic inspection reduces downtime, improves profitability, and diminishes maintenance cost and energy cost.
Thermography in Boiler and Refractory Inspection