Shell and tube heat exchangers are the most widely used heat transfer equipment in petroleum refining, chemical plants and oil & gas processing. They consist of a cylindrical shell, a bundle of tubes inside, tube sheets, baffles and channels. One fluid flows inside the tubes while the other passes through the shell side around the tubes, enabling efficient heat exchange without mixing.

With advantages of high pressure resistance, good thermal efficiency, strong adaptability and easy maintenance, they are widely applied in heating, cooling, condensation and evaporation processes. In refineries, they are used in crude preheating, product cooling, heat recovery and energy saving systems, effectively improving unit energy efficiency and ensuring stable operation of process units.