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Infrared Thermal Imaging Monitoring and Analytical Diagnosis of High-Temperature Furnace Tubes

■Surface Temperature Monitoring and Fault Diagnosis for Heating Furnaces and Boilers
■ Monitoring and Fault Diagnosis of Thermal Insulation Linings
■Monitoring and diagnosis of other equipment malfunctions that affect changes in equipment surface temperature


Example 1: The infrared thermal image of the furnace tubes in a certain coking unit is shown in the figure. Analysis indicates that coking has occurred on the furnace tubes. Based on the monitoring results, the workshop implemented appropriate measures, enabling the furnace to operate safely under continuous surveillance and achieving favorable outcomes.


Figure 1. Infrared thermal image of the furnace tubes in a coking unit’s heater.

Example 2: To assess the condition of the lining in a certain catalytic cracking reactor–regenerator system, infrared thermography was conducted. The monitoring results indicate localized damage to the regenerator, as shown in the following infrared thermal image.


Figure 2 Thermal image after localized lining damage in the regenerator