Internal recycle moist-air latent heat recovering type heat pump drying device

Abstract

The invention relates to heat pump drying device technology, in particular to an internal recycle moist-air latent heat recovering type heat pump drying device. The heat pump drying device comprises an air source evaporator, a compressor, a drying condenser positioned in a drying chamber and a dehumidifying evaporator. An input end of the dehumidifying evaporator is connected with an output end of the drying condenser, an output end of the dehumidifying evaporator is connected with the output end of the air source evaporator, and the dehumidifying evaporator is provided with a water collection channel used for discharging condensed water. Heat of air in an outdoor environment can be absorbed through the air source evaporator, latent heat of moist-air in the drying chamber can be absorbed through the dehumidifying evaporator, and accordingly dehumidifying effect is achieved, and the latent heat of the moist-air in the drying chamber is fully utilized. Besides, the condensed water can be discharged out of the drying chamber by the water collection channel, namely, the heat is not discharged to the outside, and accordingly environment pollution is avoided.

Description

technical field [0001] The invention relates to heat pump drying device technology, in particular to a heat pump drying device of internal circulation humid air latent heat recovery type. Background technique [0002] At present, the heat pump drying device mainly includes evaporators, compressors, condensers and other components. When in use, the working medium (that is, refrigerant) through the evaporator is continuously evaporated to absorb the heat of the air in the outdoor environment and turn the working fluid The liquid is sent to the compressor, which is compressed into a high-temperature and high-pressure working medium, and then output to the condenser. The condenser releases heat in the indoor drying chamber, thereby transferring the heat from the external low-temperature environment to the drying chamber. , to dry and dry the items to be dried in the drying chamber. However, during the above-mentioned drying process, humid air is often generated in the drying ro...

AI Technical Summary

Problems solved by technology

However, during the above-mentioned drying process, humid air is often generated in the drying room, which affects the items to be dried. Among them, the heat pump drying device in the prior art simply installs a dehumidifier to cool the humid air in the drying room. Dehumidification and discharge, because the humid air in the drying room itself has a certain temperature, that is, has a certain potential heat, so the humid air with heat discharged in this way not only pollutes the environment, but also the humid air in the drying room itself The potential heat is not utilized, that is, this heat pump drying device is still not energy-saving and environmentally friendly, and the work efficiency is not high

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