Solution

Graphite equipment manufacturers classify the equipment according to their functional principles and structural types as follows:  

1. Graphite Heat Exchanger  

   Function: Indirect heat transfer between two media. Structural types include shell-and-tube graphite heat exchangers, cylindrical block-type graphite heat exchangers, rectangular block-type graphite heat exchangers, etc.  

2. Graphite Falling-Film Absorber  

   Function: Mass and heat transfer. Used for falling-film absorption of soluble gases while simultaneously removing absorption heat. Examples include shell-and-tube graphite falling-film absorbers and cylindrical block-type absorbers.  

3. Graphite Combustion Synthesis Device  

   Function: Combustion or synthesis of combustible materials. It can also complete synthesis, cooling, and absorption in a single unit. Examples include water-jacketed hydrogen chloride synthesis furnaces and three-in-one hydrochloric acid synthesis furnaces.  

4. Graphite Sulfuric Acid Dilution Cooler  

   Function: Dilution (cooling) of media such as sulfuric acid, with the ability to remove dilution heat (cooling) in a single unit.  

5. Graphite Tower Equipment  

   Function: Gas-liquid or liquid-liquid mass transfer equipment, including tray towers and packed towers.  

6. Graphite Pump Equipment  

   Function: Equipped with a power device for conveying liquids or creating negative pressure to extract other media.  

7. Graphite Mechanical Equipment  

   Function: Equipped with a power device for mixing, reacting, concentrating, or evaporating materials.  

8. Permeable Graphite Equipment*  

   Function: Carbon (or graphite) components with micropores that allow one or some particles to pass through while blocking others.  

9. Graphite-Lined Equipment  

   Function: Equipment lined with graphite bricks or plates for corrosion resistance.  

10. Graphite Pipes and Fittings  

    Function: Used for conveying media and connecting equipment.  

11. Graphite Sealing Materials  

    Function: Used for face seals, packing seals, and flange seals.  

12. Graphite Protective Anode in Cathodic Protection Systems  

    Function: Serves as an impressed current protective anode in cathodic protection systems.