Heat pump dryer

Abstract

The invention provides a heat pump dryer. The heat pump dryer comprises a drying chamber, an air supply channel, a heat pump system, a condensation fan and a solar heating system, wherein the drying chamber is provided with a drying space as well as an air inlet and an exhaust outlet which communicate with the drying space; the air supply channel communicates with the air inlet of the drying chamber; the heat pump system is provided with a condenser; the condenser is used for heating air entering the air supply channel; the condensation fan is arranged inside the air supply channel and is used for driving the air in the air supply channel to pass through the condenser and then to flow towards the air inlet of the drying chamber; the solar heating system is provided with a heat radiation coiled tube; and according to the mounting position of the heat radiation coiled tube, the air is enabled to pass through the heat radiation coiled tube, is heated by the condenser and then enters the drying chamber in sequence. According to the heat pump dryer provided by the invention, the heat pump system is originally combined with the solar heating system, so that solar energy can be utilized to the maximum; and when outside sunlight is insufficient, energy is supplemented by means of a heat pump, and thereby the heating efficiency for the air is not reduced, and energy conservation and emission reduction can be realized to the maximum.

Description

technical field [0001] The invention relates to the technical field of heat pump drying, in particular to a heat pump dryer. Background technique [0002] The principle of the heat pump dryer is the reverse Carnot principle. The gas is pressurized in the compressor to become a high-temperature and high-pressure gas, and then enters the condenser. In the condenser, the refrigerant condenses and liquefies, releasing heat to increase the air in the drying room. temperature. The materials in the drying room vaporize and evaporate the moisture in the materials in the form of hot air, and the evaporated water vapor is discharged by the dehumidification system to achieve the purpose of drying the materials. Existing heat pump dryers currently on the market generally discharge high-temperature water vapor directly from the dehumidification system, resulting in a waste of energy. [0003] Chinese patent document CN204902531U discloses a heat pump drying device that can realize humi...

AI Technical Summary

Problems solved by technology

[0005] Therefore, the technical problem to be solved by the present invention is to overcome the technical defect of the heat pump dryer in the prior art that consumes a lot of energy, which is not conducive to energy conservation and environmental protection, so as to provide a heat pump dryer that greatly reduces energy consumption and is conducive to energy conservation and environmental protection.

Images