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Department of Chemical Machinery of Dalian University of Technology The Department of Chemical Machinery of Dalian University of Technology is affiliated to the School of Chemical Engineering. This discipline took the lead in cultivating postgraduate students in China in 1954. It is one of the earliest master's degree programs in this discipline in China that has the right to confer master's degrees, and it also has the right to confer doctoral degrees. There are currently 21 master's degree supervisors, including 3 doctoral supervisors. The main research areas are: (1) Theories and technologies for preventing and controlling explosion disasters in chemical production, such as the occurrence, development mechanism and disaster mode of chemical explosions such as combustible gas explosions and dust explosions, chemical explosion prevention and protection technology and equipment, physical overpressure prevention and safe release technology and equipment, etc. ； (2) New refrigeration technologies and complete sets of equipment, such as rotary and stationary air wave refrigeration technologies and equipment, pressure exchange refrigeration technology and equipment, thermoacoustic conversion refrigeration technology and equipment, natural gas liquefaction complete sets of technologies and equipment, natural gas dehydration complete sets of technologies and equipment, light hydrocarbon recovery complete sets of technologies and equipment, tail gas recovery complete sets of technologies and equipment, etc. ； (3) Equipment diagnosis theory and technology, such as equipment status monitoring, equipment fault diagnosis, optimized operation of equipment systems, etc. ； (4) High-efficiency energy-saving mass transfer and heat transfer technology and equipment, such as gas-liquid-solid multiphase flow and heat transfer equipment, high-efficiency wave plate heat exchangers, high-efficiency cyclone separators, grain drying devices, high-efficiency evaporators, seawater desalination devices, waste plastic oiling devices, solid-liquid wave surface coolers, etc. ； (5) Structure, strength and CAD of chemical equipment, such as fatigue strength and structural optimization of pressure vessels and gas cylinders, defect assessment and life extension analysis of pressure vessels and pipelines, strength analysis of high-temperature pressure components, ultimate strength, fatigue analysis and analytical design of pressure vessels, chemical equipment CAD, CIMS system, etc. ； (6) Mechanical processes and equipment for powders, such as fluidization of powders and granules, airflow crushing and classification, spherical granulation, low-temperature crushing of waste tires, etc. ； (7) Typical fine chemical post-processing technologies and equipment, such as supercritical extraction, molecular distillation, membrane separation, etc. ； (8) Virtual chemical plant design technology, such as the development of large-scale chemical equipment and process design software packages. In recent years, it has successively undertaken and completed * * Natural Science Foundation, etc. * * There are more than 10 scientific research projects at the provincial level and more than 20 provincial and ministerial level projects, and have won * * One Invention Award and one Science and Technology Progress Award each, and more than 10 provincial and ministerial Science and Technology Progress Awards. * * It has more than 20 patents, nearly 30 practical technologies or products, published 15 monographs and more than 420 papers. Subject and professional name (code) Research direction Chemical process machinery (080706) 1. Chemical fluid explosion overpressure disaster simulation and prevention technology 2. Innovative design and intelligent control technology of modern chemical equipment 3. Comprehensive energy utilization and system thermal economic evaluation and decision analysis 4. Special flows of industrial fluids and new equipment 5. Structural optimization and intelligent control of process machinery 6. Powder granulation technology and equipment7. Computational powder mechanics and applications 8. Multiphase flow and mass transfer and heat transfer equipment 9. Structural strength of pressure vessels and chemical equipment CAD 10. Safety assessment and life extension analysis of defects in in-service pressure vessels and pipelines 11. Energy-saving freeze-drying process and technology 12. Mechatronics of chemical equipment 13. Supercritical extraction technology 14. Ultra-fine powder synthesis technology 15. Natural gas purification technology 16. Equipment status monitoring and fault diagnosis 17. Optimized operation of equipment systems