Heat pump drying unit with sterilization function and control method thereof

Abstract

The invention discloses a heat pump drying unit with a sterilization function and a control method thereof. The heat pump drying unit comprises a control device, a hot water coil pipe, an air treatment device, a heat pump device and a sterilization mechanism; the hot water coil pipe and the sterilization mechanism are respectively arranged in a drying chamber, and the air treatment device is used for outputting high-temperature air to the drying chamber; the heat pump device comprises a compressor and a heat exchanger; the output end of the compressor is connected with a first port of the heat exchanger; the air processing device is respectively connected with a second port of the heat exchanger and the input end of the compressor; a third port and a fourth port of the heat exchanger are respectively connected with the hot water coil pipe; and the heat exchanger is used for conveying a high-temperature heat source to the hot water coil pipe. According to the heat pump drying unit disclosed by the invention, hot water and hot air can be provided to the drying chamber so as to implement drying of products, i.e., two drying modes are adopted for drying at the same time, so that the drying efficiency is greatly improved; and the sterilization mechanism is arranged in the drying chamber, so that the cleanliness of the dried products can be improved.

Description

technical field [0001] The invention relates to the technical field of heat pump drying units, in particular to a heat pump drying unit with a sterilization function and a control method thereof. Background technique [0002] The existing single hot air heat pump drying unit, if it is difficult to dry the items to be dried, only relying on hot air for drying, there are problems of low drying efficiency and long drying time, and too long The drying time will greatly increase the working energy consumption of the hot air heat pump drying unit; and if the drying time is too short, there will be a problem that the actual drying effect of the items cannot meet the drying requirements. [0003] In addition, the existing heat pump drying units generally do not have the function of sterilization. During the drying process of products such as food and medicine, bacteria and germs may breed, resulting in product contamination and lower product yield. [0004] It can be seen that the ...

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Problems solved by technology

[0002]In the existing single hot air heat pump drying unit, if it is difficult to dry the items to be dried, only relying on hot air for drying, there is a drying efficiency If the drying time is too short, the actual drying effect of the items will not be achieved. Question about drying requirements

[0003] In addition, the existing heat pump drying units generally do not have the function of sterilization. During the drying process of products such as food and medicine, bacteria and germs may breed, resulting in product contamination and lower product yield.

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