Photoelectric thermal coupling solar drier with heat storage function

Abstract

The invention discloses a photoelectric thermal coupling solar drier with a heat storage function. The driver comprises a heat storage chamber and a drying chamber, exhaust holes are formed in the topof the drying chamber, and an air inlet in the right side of the bottom of the drying chamber is communicated with the heat storage chamber; a materiel laying layer is installed in the drying chamber, a linear Fresnel lens is arranged at the top of the heat storage chamber, a heat storage copper pipe is installed in the heat storage chamber, and a fan is connected to the heat storage copper pipe.According to the photoelectric thermal coupling solar drier, sunlight is focused through the Fresnel lens, then the heat storage copper pipe is adopted for heat storage, hot airflow collected in theheat storage copper pipe is blown by the fan into the drying chamber, materials in the drying chamber are dried, the utilization rate of heat energy is high, the drying effect is good, the structure is relatively simplified, and the manufacturing cost is lowered.

Description

technical field [0001] The invention relates to a photoelectric thermal coupling solar drier with heat storage function, which belongs to the technical field of drier. Background technique [0002] Solar drying is an effective method, which will play a positive role in developing rural economy, saving conventional energy, avoiding environmental pollution, improving product quality, changing backward production and processing methods and making farmers rich. The drying method in daily life is mostly natural drying, the drying temperature is low, the drying time is long, and the drying conditions (such as sunlight intensity, wind speed, relative air humidity, etc.) Pollution and erosion of environmental factors, the drying effect is not ideal. The drying temperature required by general agricultural products is relatively low, about 40-55°C, which matches the low-temperature heat utilization in the field of solar heat utilization, which can not only greatly shorten the drying ...

AI Technical Summary

Problems solved by technology

[0003] At present, there are mainly two types of solar dryers: one is a common greenhouse-type solar drying device, and the other is a collector-type solar drying device. The air collector and drying chamber of this drying device are separated. , can be better combined with the conventional energy air heating system to form a large-scale hybrid solar drying device with continuous operation, but the drying heat transfer process is mainly convective heat transfer, and there is an additional heat exchange process between solar energy and materials , the drying efficiency is lower than that of ordinary greenhouse-type solar drying devices

The collector-greenhouse solar drying device that combines the advantages of the two dryers has a large system, poor integrity, and is expensive

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