The energy saving heat pump dryer machine is using inverse cano principle, absorbing heat air and transferring them to the drying chamber to increase the temperature in the dryer.
Heat pump dryer is composed of compressor, heat exchanger, flow controller and heat absorber, and these devices form a cycling system (main drying device and drying chamber).
Under the action of compressor, the refrigerant will be flowing circulating in this system. It will finish the process of increasing pressure and temperature in the compressor (temperature can be up to 115℃), then release high temperature source to heat the air in the chamber, and at the same time, cool the moisture in the exhaust gas to a liquid water to be discharged. When it runs out the machine, the liquid will aborb hot air quickly and be tanslated to gas again. At the same time, the temperature will be dropped to 20-30℃, and the heat absorber will transfer the heat source to refrigerant. And the refrigerant tranports the heating source from the air to drying chamber constantly and circularly to heat the air temperature in the chamber.
It is easy to achieve low temperature drying at 0-75 °C under normal pressure, and have high-quality dried product.
Thermal efficiency is as high as 460%, operation cost is the 1/3 of fuel gas, fuel oil, is 1/4 of the electricity, 40% lower than the solar energy, save 30% than coal.
It is convenient to use the inert drying medium to completely close the cycle to safely dry the flammable and explosive products and oxidative and deteriorating products.
When drying, it does not discharge dust and odor to the external environment, and can recover the aroma components and solvents in the product.
Color, lustre and shape remains unchanged.
Intelligent control, 24 hours of continuous drying operation.