Heat pump type clothes dryer with heat exchanger blow wash function

Abstract

The invention discloses a heat pump type clothes dryer with a heat exchanger blow wash function, and relates to the technical field of clothes dryers. The heat pump type clothes dryer with the heat exchanger blow wash function comprises a barrel, an air channel and a blow wash nozzle. The air channel is connected with the barrel and used for drying to-be-dried articles in the barrel, first fans and a heat exchanger are arranged in the air channel, the heat exchanger comprises an evaporator and a condenser, the first fans are used for blowing moisture in the barrel to the evaporator, and the evaporator is used for reducing the temperature of damp and hot air so that condensed water can be formed; air which flows through the evaporator further can be heated by the condenser and then can flowinto the barrel again, and the blow wash nozzle is used for carrying out blow wash on the heat exchanger and is communicated with an air feed device via an air supply pipeline. The heat pump type clothes dryer has the advantages that sundries such as thread scraps on the heat exchanger can be cleared away, and accordingly the heat exchange efficiency can be guaranteed; the heat pump type clothesdryer is used for drying clothes.

Description

technical field [0001] The invention relates to the technical field of clothes dryers, in particular to a heat pump dryer capable of blowing and washing a heat exchanger. Background technique [0002] A clothes dryer is a cleaning household appliance that uses electric heating or a heat exchanger (heat pump type) to generate a higher temperature air flow so that the moisture in the washed clothes can be evaporated and dried immediately. It is especially necessary for the winter in the north and the "returning to the south" in the south where the clothes are difficult to dry. In addition, clothes dryers are widely used in industrial production to dry fabrics and improve production efficiency. [0003] Heat pump dryers in the prior art generally include an inner tub for holding clothes, an air duct is formed under the inner tub, and a heat exchanger (including an evaporator and a condenser) is arranged in the air duct, and the two ends of the inner tub are connected to the ai...

AI Technical Summary

Problems solved by technology

[0004] However, the heat pump dryers in the prior art will take away the lint between the clothes during the drying process of the high-temperature air, and the lint in the air will be attached to the evaporator or condenser after passing through the evaporator or condenser. As the drying time prolongs, the lint attached to the fin surface of the evaporator or condenser will continue to increase, which will increase the air resistance in the air duct, reduce the heat exchange efficiency, and reduce the condensation efficiency

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