clothes dryer

Abstract

The invention proposes a clothes dryer, which includes a casing, which is provided with a fresh air grille near an air inlet; an inner drying barrel, which is located in the casing and has an air inlet grille and a return air outlet; and a preheat exchanger. Heater, the preheating heat exchanger is located in the casing and is connected to the fresh air grille and the main heating heater respectively. The preheating heat exchanger is located in front of the main heating heater in the air inlet direction; the main heating heater is located in the machine In the shell, the air flowing into the drying inner barrel from the fresh air grille and the air inlet grille is heated; the exhaust air duct has one end connected with the return air outlet and the other end connected with the preheating heat exchanger to make the drying The air in the dry inner barrel flows into the preheating heat exchanger and performs heat exchange with the fresh air flowing into the preheating heat exchanger from the fresh air grille; and the fan is installed in the casing and passes the fresh air through the preheating heat exchanger and the main heat exchanger. The heater is sucked into the drying inner barrel. Therefore, the clothes dryer of the present invention can preheat the fresh air, fully utilize the heat of high-temperature and high-humidity wind, and effectively save the energy consumption of the clothes dryer.

Description

Technical field [0001] The present invention relates to the technical field of clothes dryers, in particular to a clothes dryer. Background technique [0002] Existing clothes dryers or direct exhaust clothes dryers mostly use electric heating or gas heating at the air inlet section, and then the heated high-temperature gas is sent into the drying inner cylinder through the air supply duct, and mixed and stirred with the clothes to form a high temperature. After the wet gas is discharged directly, the clothes can be dried. [0003] The current technology has a large heat loss. Firstly, after the heater is heated, the high-temperature gas has to pass through a long air supply duct, which has already lost part of the heat, and then enters the drying cylinder; secondly, the drying cylinder itself The amount of external heat dissipation is large, and a lot of heat is wasted again; in the end, the high-temperature and high-humidity gas is directly discharged, and the heat it possesses ...

AI Technical Summary

Problems solved by technology

[0003] The current technology has a large heat loss. First, after the heater is heated, the high-temperature gas has to go through a long air supply duct, which has lost part of the heat, and then enters the dryer; The amount of external heat dissipation is large, and a lot of heat is wasted again; finally, the high-temperature and high-humidity gas is directly discharged, and the heat it possesses is lost again, resulting in greater energy consumption

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