Cooling device

A cooling device that exposes a cooling target object to air mixed with atomized water and uses vaporization heat of water to cool the cooling target object, the cooling device comprising:

• an air circulation mechanism including:
• an air circulation path including:
• a target object cooling section for cooling the cooling target object with the air mixed with the atomized water;
• and
• an air cooling section for cooling the air heated in the target object cooling section;
• and
• a fan that circulates the air in the air circulation path;
• and
• a water circulation mechanism including:
• a discharge portion for discharging the water mixed into the air in the target object cooling section of the air circulation path;
• a tank for collecting water condensed in the air cooling section of the air circulation path;
• and
• a pump for delivering the water in the tank to the discharge portion;
• and
• a refrigerating circuit which includes:
• a compressor;
• a condenser;
• an expansion valve;
• and
• an evaporator arranged in the air cooling section of the air circulation path to cool air,
• wherein a predetermined refrigerant flows through the compressor, the condenser, the expansion valve, and an evaporator sequentially in this order,
• wherein the air circulation path includes an air heating section for heating the air cooled in the air cooling section before flowing into the target object cooling section, and
• wherein the refrigerating circuit has an air heating heat exchanger provided in parallel with the condenser and the air heating exchanger is provided between the compressor and the expansion valve and arranged in the air heating section of the air circulation path.