When the air compressor works, the temperature of circulating oil and waste gas is as high as 85-90℃, which contains a lot of heat energy and has great utilization value.
In fact, all the electric energy consumed by compressed air of air compressor is converted into heat energy, which is stored in compressed air and cooling lubricating oil.
The waste heat recovery device produced at present recovers this part of waste heat, heats cold water to 50-65℃, and recovers free hot water for shower, heating and so on.
Direct heating recovery
Direct heat recovery, also known as the waste heat system of composite direct-heating air compressor, is characterized by generating water temperature of 80℃ only by one-time heat exchange, and the water supply mode is directly heating to the set temperature without forced circulation heat exchange for many times. The air compressor saves energy, the oil temperature is constant, and the original cooling system is completely unnecessary. The compound direct heat recovery of air compressor belongs to the national patent, and the tubular heat exchanger used in it is superior to the plate heat exchanger commonly used in the market.