On-line Detection of Pressure Vessel Based on Infrared Imaging Technology

Abstract

This paper introduces the application of infrared thermal imaging detection technology in the field of special pressure equipment, and applies infrared imaging detection to burners, low-temperature vessels, and tower vessels in chemical plants. The conclusion is that infrared detection technology can accurately detect temperature-maintaining defects in burners and low-temperature vessels, and can intuitively reflect the defect location in a high-heat form. For high-temperature equipment, the infrared characteristic form of insulation defects is generally displayed in an irregular chain shape, because the insulation is made up of materials that are spliced together and easily form pores at the joints. For low-temperature equipment, the humid environment caused by cold running may cause corrosion to exposed metals and even affect the process’s effectiveness. Infrared detection technology can visually reflect the location and degree of cold running, reduce equipment usage risks, and provide size and position guidance for insulation repair.