Digital Radiographic Imaging and Automatic Detection System for Welded Joint of Tube and Tube Sheet

Aiming at the character of welded joint of tube-tube sheet in multitubular heat exchanger and reactor, a special radiographic imaging and automatic detection system was designed. The principle of system was analysed, and the overall design was briefly introduced. Through the related experiment, it was indicated that the system ran steadily fast and conveniently, environment pollution of common radiographic testing was reduced, and the work efficiency was significantly improved.