Principle of heat pump dryer

Principle of heat pump dryerCan be used for heat pumps(Heat Pump)A heat pump is a device that transfers the thermal energy from a low-level heat source to a high-level heat source. Typically, a heat pump first obtains low-grade thermal energy from the air, water, or soil in nature, performs electrical work, and then provides people with usable high-grade thermal energy. A heat pump is essentially a device for increasing heat, with high temperaturesheat pump dryerThe group uses the inverse Carnot principle to extract heat from the surrounding environment and transfer it to the object being heated (a higher temperature object). Its working principle is the same as that of a refrigeration machine, both working according to the inverse Carnot cycle, with the only difference being the operating temperature range.

Principle of heat pump dryerApplicable to the drying product industry:

Chinese medicinal herbs, honeysuckle, incense, wood, traditional Chinese medicine decoction pieces, preserved meats, seafood, dried fruits(preserved fruits), edible fungi, marine treasures, cordyceps, tobacco, ginseng, lobster sauce, vegetable seeds, ginger, casings, vegetables, pectin, leather, foam board, leisure products, heat sensitive chemical materials, etc.

The difference between heat pump dehumidification and traditional hot air drying lies in the different air circulation methods and the different ways in which the air in the drying chamber is dehumidified. During the heat pump drying process, the air circulates in a closed loop between the drying chamber and the heat pump dryer. It uses the refrigeration system of the heat pump dryer to cool and dehumidify the humid air from the drying chamber. When the humid air flows through the heat pump evaporator, the low-pressure refrigerant inside absorbs the heat from the air and changes from liquid to gas. As the air cools down, most of the condensed water is discharged. The low-pressure refrigeration steam from the evaporator is pressurized by the compressor and sent to the condenser. When the dehumidified dry cold air flows through the condenser, the high-pressure refrigerant inside releases heat due to condensation, while the external air is heated into hot air and returns to the drying chamber to continue drying the wood. The high-pressure refrigerant flowing out of the condenser is depressurized by the expansion valve and flows into the evaporator to continue the next cycle.

Drying room size:Design and manufacture according to customer drying requirements (reference *).

Technical requirements and selection of heat pump and drying room matching