Solar fruit and vegetable drying device

Abstract

The invention discloses a solar fruit and vegetable drying device which comprises a driving motor (9), a frame (7), a solar panel (1), a vacuum pump (10) and a water circulating device (4). The water circulating device (4) is arranged on the upper surface of the frame (7), a water inlet of the water circulating device (4) is connected with a water tank (2) of a solar water heater by a water inlet electromagnetic valve (3), a water outlet of the water circulating device (4) is connected with the water tank (2) of the solar water heater by a water outlet electromagnetic valve (17), a drying cavity (18) is arranged in the frame (7), a vacuum extraction device is arranged on the upper portion of the drying cavity (18), a conveying mechanism is arranged in the middle of the drying cavity (18), a plurality of temperature sensors (12) are arranged on the inner wall of the drying cavity (18), a water circulating cavity (13) is arranged on the outside of the drying cavity (18), a heat-insulation layer (11) is arranged on the outside of the water circulating cavity (13), and a comprehensive PLC (programmable logic control) box (8) is arranged at the lower end of the frame (7).

Description

Technical field [0001] The invention relates to the technical field of solar energy, in particular to a solar energy drying device for fruits and vegetables. Background technique [0002] With the development of the global economy, the demand for energy is increasing. However, after years of continuous exploitation, the world's non-renewable resources such as oil and coal have become increasingly scarce. The world needs to find a clean energy source and also need to save energy. [0003] At present, fruits or vegetables are mostly vacuum-packed in order to be convenient and hygienic for eating, fresh-keeping, storage, and transportation. The dirt on the surface of the fruits or vegetables is washed off before packaging, and then air-dried naturally after washing, and then packaged after drying. , Otherwise the shelf life of the washed fruits or vegetables will be shorter and rot easily. Although there are cleaning equipment now, they need to be picked up and dried manually after c...

AI Technical Summary

Problems solved by technology

[0003] Nowadays, fruits and vegetables are mostly vacuum-packed in order to be convenient and hygienic to eat, fresh-keeping, storage and transportation. Otherwise, the shelf life of washed fruits or vegetables will be shortened and they are easy to rot. Although there are cleaning equipment, they need to be picked up and dried manually after cleaning. The production efficiency is low, the area is large, and it is easy to cause secondary pollution during the drying process. Conducive to flow operation

The existing fruit and vegetable drying equipment on the market often causes energy waste and environmental pollution due to the use of heating equipment

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