Research on the Application of Digital Radiography Testing Technology for In-Service Inspection of Organic Heat Carrier Pressure Pipelines

Wei Wu

Prof. Wei Wu is engaged in scientific research and teaching in the fields of intelligent non-destructive testing technology, testing technology, and computer control. His research interests include the development and application of testing instruments, design and development of measurement and control systems, machine vision, and robotic applications. He has led and participated in numerous projects, including those funded by the National Natural Science Foundation of China, Aviation Fund, Jiangxi Provincial Department of Education, major national defense technology transformation projects, AECC industry–university–research projects, and various enterprise-commissioned projects. He has published more than 50 academic papers and has been awarded one First Prize of the Jiangxi Provincial Science and Technology Progress Award.

Research and Application of Common Technologies for Digital Twin of Special Equipment

Yihuan Liu

Special equipment, as critical infrastructure related to national economic operation and public safety, is characterized by high risk, high complexity, and strong coupling during operation. Traditional supervision models exhibit clear limitations in precise risk identification, hazard detection, and personalized regulation. To address these challenges, this study focuses on the application requirements of digital twin technology in the field of special equipment and establishes a common technology framework centered on “sensing–computing–integration.”At the sensing layer, multi-source sensing and high-precision detection technologies are employed to achieve accurate perception and data acquisition of equipment throughout its full lifecycle.At the computing layer, high-fidelity digital twin models are developed based on multi-physics coupling modeling and model lightweighting methods, combined with artificial intelligence algorithms to enable equipment condition prediction and decision optimization.At the integration layer, a digital twin service platform is constructed through multi-source heterogeneous data fusion and cloud–edge collaborative architecture, enabling integrated management and intelligent decision-making across scenarios and devices.Through typical application cases, the effectiveness of the proposed technology framework in intelligent monitoring, fault prediction, and smart operation and maintenance has been validated. The results demonstrate that this framework can significantly enhance risk perception and prediction capabilities of special equipment, promote the transition of regulatory models from passive response to proactive prevention and control, and provide important technical support for the intelligent supervision of special equipment.

Biography of Yihuan Liu

Yihuan Liu, Professorate Senior Engineer, Senior Inspector of Pressure Equipment. He is the Chief Expert at the Tianjin Special Equipment Inspection Technology Research Institute and the Technical Leader of Non-Destructive Testing (NDT). He serves as a member of the National Vocational Education Teaching Steering Committee for Market Regulation, Vice Chairman of the Radiographic Testing Conference of the NDT Branch of the Chinese Mechanical Engineering Society, expert of the NDT Standards Working Group, member of the Subcommittee on NDT Instruments under the National Technical Committee for Standardization of Testing Machines, technical expert of the National NDT Standardization Committee, member of the Testing Technology and Evaluation Committee and the Information and Intelligence Committee of the China Special Equipment Inspection Association, graduate supervisor at Tianjin University, Secretary-General of the Tianjin Special Equipment Standardization Technical Committee, and Chairman of the NDT Committee of the Tianjin Special Equipment Safety and Energy Conservation Association. He has long been engaged in research on inspection and non-destructive testing of pressure equipment. He has led and participated in more than 20 national key R&D programs, provincial and ministerial-level scientific research projects, as well as the formulation of national, industry, local, and group standards related to pressure equipment inspection. He has authored one monograph on NDT, co-authored three textbooks on NDT for special equipment, published over 20 technical papers, and holds six authorized patents.