1. Refrigeration: Used as condensers and evaporators. Plate heat exchangers are frequently used in well water refrigeration applications.
2. HVAC: Intermediate heat exchangers used in conjunction with boilers, intermediate heat exchangers in high-rise buildings, etc.
3. Chemical Industry: Cooling in soda ash production, ammonia synthesis, alcohol fermentation, resin synthesis, etc.
4. Metallurgical Industry: Heating or cooling aluminate mother liquor, cooling in steelmaking processes, etc.
5. Machinery Industry: Cooling of various quenching fluids, cooling of lubricating oil in speed reducers, etc.
6. Power Industry: Cooling of high-voltage transformer oil, cooling of generator bearing oil, etc.
7. Paper Industry: Heat recovery in bleaching processes, heating of pulp washing liquor, etc.
8. Textile Industry: Cooling of viscose filament alkaline solutions, cooling of boiling nitrocellulose, etc.
9. Food Industry: Cooling for fruit juice sterilization, heating and cooling of animal and vegetable oils, etc.
10. Oil and fat processing: Drying soap base at atmospheric pressure; heating or cooling various process liquids.
11. Central heating: District heating using waste heat from power plants; heating bath water.
12. Waste heat utilization: Reusing wastewater from the bathing industry to heat clean water.
13. Electric boiler heating: Direct heating from electric boilers; electric boiler heat storage heating.
14. Others: Petroleum, pharmaceuticals, shipbuilding, seawater desalination, geothermal utilization.
