Dehumidification and energy-saving drying device and method

Abstract

The invention discloses a dehumidification and energy-saving drying device. The dehumidification and energy-saving drying device comprises a compressor, a refrigerant pipeline connected with the compressor, a refrigerant operating in the refrigerant pipeline, a drying chamber for placing to-be-dried objects, a heating device for heating air to form heated air, an air supply device for delivering the heated air to the drying chamber, a cooling capacity releasing device for releasing the cooling capacity of the refrigerant, a heat recovery device for cooling the heated air discharged from the drying chamber, and a cooling device for condensing and dehumidifying the air; the refrigerant pipeline is provided with a four-way valve, a first expansion valve is arranged between the four-way valveand the cooling capacity releasing device, and a second expansion valve is arranged between the four-way valve and the cooling device; and the heat recovery device comprises a first heat exchange channel and a second heat exchange channel, and the drying chamber is internally provided with a drying area. According to the dehumidification drying device, the cooling capacity and heat are all utilized, and energy saving is more significant.

Description

technical field [0001] The invention belongs to the technical field of drying equipment and a drying method, and in particular relates to a dehumidification and energy-saving drying equipment and a drying method based on the dehumidification and energy-saving drying equipment. Background technique [0002] The existing drying equipment on the market generally uses electric heating directly for heating and drying, or uses a heat pump unit to use the compressor to compress the refrigerant to generate heat, and the heat emitted by the condenser after heat exchange is used for drying. The temperature in the drying area rises to achieve the purpose of drying the articles in the drying area. However, after the air in the drying area is heated, the moisture content of the air increases greatly. Although the humid air in the drying area will be exhausted through sensors or timing settings, and then the outside air will be sucked in to dry and wet the air. air exchange. However, th...

AI Technical Summary

Problems solved by technology

However, this drying method not only takes a long time and consumes a lot of energy, but also the dried items still contain a certain amount of water, which leads to the fact that when the items are taken out from the drying area and placed in a normal temperature environment after drying, the temperature of the items drops. There will be a phenomenon of "resurgence"

Images