High-voltage electric field heat pump drying system

Abstract

The invention relates to the technical field of material drying, and discloses a high-voltage electric field heat pump drying system. The high-voltage electric field heat pump drying system comprises a heat pump system, and the heat pump system comprises a condenser and an evaporator. A drying chamber and a high-voltage electric field drying mechanism are further included. The drying chamber, the evaporator and the condenser are sequentially connected into a closed loop through a circulating air path, a drying medium is introduced into the circulating air path, and a high-voltage electric field drying mechanism is arranged in the drying chamber. According to the high-voltage electric field heat pump drying system, the heat pump drying technology and the high-voltage electric field drying technology are ingeniously coupled, the cost is low, the energy-saving effect is good, high-efficiency and high-quality drying treatment can be carried out on materials in a low-temperature state, and the drying requirement for raw materials containing thermal instability active components can be well met.

Description

technical field [0001] The invention relates to the technical field of material drying, in particular to a high-voltage electric field heat pump drying system. Background technique [0002] Material drying involves drying fields such as agricultural production, food processing, pharmaceutical manufacturing, chemical production, paper making and wood processing. Through drying treatment, not only can obtain materials that meet the moisture content requirements, but also affect other properties of materials. At present, heat pump drying technology and high-voltage electric field drying technology are widely used in reducing energy consumption or improving drying effect in the drying process of materials. [0003] The heat pump consists of a closed-circuit circulation system that sequentially connects the compressor, condenser, expansion valve, evaporator and other components through refrigerant pipelines. It is based on the reverse Carnot cycle principle to consume a small am...

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Problems solved by technology

However, the obvious disadvantage of the high-voltage electric field drying technology is that the drying speed is relatively slow. For some materials containing volatile components, the volatile components will vaporize into the air together with the moisture during the drying process, which will have a negative impact on the air quality. influences

[0005] It can be seen from the above that although the heat pump drying technology has low cost and good energy-saving effect compared with the traditional drying technology, in the later stage of drying materials, there are phenomena of decreased dehumidification efficiency, reduced drying rate, and increased energy consumption.

Although the high-voltage electric field drying technology realizes the drying of materials at a lower temperature and better ensures the biological activity of the materials, there is a problem that the drying speed is relatively slow, and some materials containing volatile costs When drying, volatile components are easy to enter the air and affect the surrounding environment

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