Multifunctional reactors are divided into stainless steel and carbon steel according to their materials. The jacket and inner cylinder are made of atmospheric pressure, with reasonable structure, durability, high temperature resistance, corrosion resistance, and easy use. It has been widely used in petroleum, chemical, rubber, food, scientific research and other industries to complete the process of differentiation, polymerization, condensation and other processes, as well as reaction equipment for many other processes such as organic dyes and intermediates.