a. Refrigeration: used as a condenser and evaporator.

b. HVAC: intermediate heat exchangers used with boilers, intermediate heat exchangers for high-rise buildings, etc.

c. Chemical industry: soda ash industry, synthetic ammonia, alcohol fermentation, resin synthesis cooling, etc.

d. Metallurgical industry: heating or cooling of aluminate mother liquor, cooling of steelmaking process, etc.

e. Machinery industry: various quenching liquid cooling, reducer lubricating oil cooling, etc.

f. Power industry: high-voltage transformer oil cooling, generator bearing oil cooling, etc.

g. Paper industry: bleaching process heat recovery, heating washing liquid, etc.

h. Textile industry: cooling of viscose lye solution, cooling of boiling nitrocellulose, etc.

i. Food industry: fruit juice sterilization and cooling, animal and vegetable oil heating and cooling, etc.

j. Grease process: soap-based atmospheric drying, heating or cooling various process liquids.

k. Central heating: heating the waste heat area of the thermal power plant and heating the bath water.

l. Others: petroleum, medicine, ships, seawater desalination, geothermal utilization, solar energy utilization.