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What is the working principle of heat pump dryer?

The difference between heat pump drying and condensing drying is that heat pump can be called an upgraded version of condensing.

Heat pump drying is less likely to wrinkle clothes.

Heat pump drying principle:

The main finned evaporator (external), compressor, finned condenser (internal) and the expansion valve four parts, through the mass of the work is constantly completed evaporation (absorbing heat in the outdoor environment) → compression → condensation (in the indoor drying room to release the heat) → throttling → evaporation of heat cycle process, so as to transfer the heat of the external cold environment to the drying room, so that the heat of the external low temperature environment. Heat is transferred to the drying room, and the refrigerant circulates in the system under the action of the compressor. It completes the process of pressurization and warming of gaseous state in the compressor (the temperature is as high as 100℃), it enters into the inner machine to release high temperature heat to heat the air in the drying room, and at the same time, it is cooled down and transformed into the liquid state, when it is running to the outer machine, the liquid state rapidly absorbs heat and evaporates to be transformed into the gaseous state again, and at the same time the temperature can be reduced to -20℃~-30℃, at that time, the air around the absorber will continuously transfer the heat to the The air around the heat absorber will continuously transfer the heat to the refrigerant.

Condensing drying working principle:

Through the condenser will be produced in the drying process of water vapor condensation into moisture and then discharged condensing is also divided into steam condensing drying, the constant steam sprayed on the clothes, making the clothes stretch after the constant temperature condensing drying, through this way, heavy clothing can not only dry faster, but also has the effect of stretching and ironing. Another new type of waterless condensation drying, there is no need to use water to cool, will not consume water resources, but the use of nature's cold and hot double air flow exchange principle, to circulate the air to cool down the processing, to air condensation to complete the drying.