Novel solar-driven tube fin type hot air circulation fruit and vegetable drying device

Abstract

The invention relates to the field of fruit and vegetable drying, in particular to a novel solar-driven tube fin type hot air circulation fruit and vegetable drying device which comprises a solar photovoltaic photo-thermal system and a tube fin type hot air drying system, and the tube fin type hot air drying system is arranged on one side of the solar photovoltaic photo-thermal system. According to the novel solar-driven tube fin type hot air circulation fruit and vegetable drying device, absorbed solar energy is converted into electric energy and internal energy through the solar photovoltaic photo-thermal system, the electric energy and the internal energy are used for driving the water pump and the draught fan and heating water in the water tank, and the efficient solar photovoltaic photo-thermal system is adopted as a drying heat source; the problem of high energy consumption of an electric hot air drying system which is widely used at present is solved, and the effects of energy conservation and emission reduction are achieved. Main equipment of the tube fin type hot air drying system is heat exchangers, all the heat exchangers are connected with a water tank in parallel to form a circulating water path, hot water flows through the heat exchangers, heat is transmitted to air under pushing of a fan, moisture of fruits and vegetables is taken away, and the purpose of drying the fruits and vegetables is achieved.

Description

technical field [0001] The invention relates to the field of drying fruits and vegetables, in particular to a novel solar-driven tube-fin hot air circulation drying device for fruits and vegetables. Background technique [0002] At present, a large part of domestic fruits and vegetables adopts the natural drying method, which has the advantages of simplicity and low investment in equipment, and the disadvantage of being limited by basic conditions such as climate and light. The drying time required for natural drying is long, the loss of active ingredients is relatively large, and it is easy to rot, deteriorate and brown in rainy days, and it is also easy to be polluted by dust, flies, birds, rats, etc., so the fruit and vegetable dryer came into being. The fruit and vegetable dryer is a kind of equipment for dehydrating and drying fresh fruits, vegetables and other materials. According to the operation mode of materials, it can be divided into tunnel type, box type and cabi...

AI Technical Summary

Problems solved by technology

The three types of fruit and vegetable dryers are box-type hot-air fruit and vegetable dryers, tunnel-type hot-air fruit and vegetable dryers, and conveyor belt-type fruit and vegetable dryers. Large, low investment, simple operation and other characteristics are widely welcomed, but there are also difficulties in drying materials with a lot of sugar and pectin, the equipment itself is more complicated, the cost is higher, and the temperature and humidity of the hot air cannot be controlled in sections according to the demand for dry coal. , narrow application range and other characteristics

At the same time, because coal is cheap and easy to obtain, the cost of coal-fired heating furnace is low, which is the main heat source of fruit and vegetable dryer. Its discharge contains many harmful substances and pollutes the environment.

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