Working principle of printing dryer

The printing heat pump is essentially a heat lifting device. The printing heat pump unit uses the inverse Carnot principle to absorb heat from the exhaust of the printing machine and transfer it to the heated object, that is, the fresh air of the printing machine. Its working principle is the same as that of the refrigerator. They all work according to the inverse Carnot cycle, but the difference is that the working temperature range is different.