Graphite heat exchanger refers to the application of impregnated graphite as a material for heat exchange. Impregnated graphite is a type of carbon with unique properties and high density, suitable for various high temperature and corrosive environments, especially in the media of hydrochloric acid, sulfuric acid, and phosphoric acid. It is stable, acid resistant, and does not leak.

Graphite heat exchangers are commonly used in industries that require heat transfer between two fluid flows while maintaining a high level of corrosion resistance. Some industries that use graphite heat exchangers include chemical processing, pharmaceuticals, petrochemicals, and metal refining.

The design of graphite heat exchangers typically includes a shell and tube structure, similar to traditional metal heat exchangers. The shell contains the primary fluid, while the tube made of graphite carries the secondary fluid. The main fluid passes through the shell, while the secondary fluid flows through the pipeline. Heat transfer occurs through the walls of graphite tubes, thereby achieving effective heat exchange between the two fluids.