Power Station Generator Air Cooler Replacement Project

Power Station Generator Air Cooler Replacement Project

Air coolers are widely used in synchronous generators and turbine generators in thermal power plants, hydropower plants and nuclear power plants.

When the generator is running, the stator, rotor and other parts will generate a lot of heat due to the passage of electric current and mechanical friction, which leads to the increase of internal air temperature. The role of the air cooler is through forced convection heat transfer, the hot air will be cooled and sent back to the generator to form a cycle of cooling:

generator inside the hot air (temperature is usually in the 40-60 ℃) by the fan pumped into the cooler;

hot air flow through the cooler heat transfer tube bundles (the tube through the cooled water or cold air), through the tube wall will be the transfer of heat to the cooling medium inside the tube;

cooled air (the temperature drops to Cooled air (temperature down to 30-40 ℃) re-enter the generator, continue to absorb heat, the formation of closed loop;

tube cooling medium (hot water or hot air) is transported to the cooling tower or other cooling equipment to cool down, repeated use.