Two-medium solar drying boiler system

Abstract

The invention belongs to the technical field of solar utilization, and particularly relates to a double-medium solar drying boiler system which comprises a double-medium solar heat collector, a drying room, a salt heat storage tank, a salt / air heat exchanger, a salt pump, a first fan and a humidity-heat heat exchanger, wherein the double-medium solar heat collector comprises an air runner and a salt runner; one end of the air runner communicates with the drying room; one end of the salt runner communicates with one end of the salt heat storage tank; the other end of the salt heat storage tank communicates with the other end of the salt runner through the salt pump; the salt / air heat exchanger is arranged in the salt heat storage tank; and the drying room sequentially communicates with the other end of the air runner through the humidity-heat heat exchanger and the first fan. The double-medium solar drying boiler system can be used for solving the problem that temperature fluctuation of the solar dryer is relatively great in a crop drying process very well, can restrain damages, caused by rapid rise of the air temperature, on the dried materials when solar irradiation suddenly rises, and can enable the solar wheel to have more practical prospect in agriculture.

Description

technical field [0001] The invention belongs to the technical field of solar energy utilization, and in particular relates to a dual-medium solar energy drying boiler system. Background technique [0002] The heat used in industrial and agricultural drying processes needs to be continuous and stable, especially in the drying process of crops. The cloud cover in Southwest my country and South China is large, and the irradiation fluctuates frequently during the day, which has a great impact on the output temperature or flow of the air solar collector, thereby affecting the drying quality. [0003] In order to improve the stability of the output temperature and flow rate of the air solar collector, auxiliary heat sources (such as heat pumps and gas hot blast stoves) can be used to smooth temperature fluctuations, but these auxiliary heat sources consume conventional energy. [0004] The invention aims to provide a dual-medium solar drying boiler system, wherein the dual media ...

AI Technical Summary

Problems solved by technology

The southwestern and southern regions of my country have relatively large cloud cover, and the irradiance fluctuates frequently during the day, which has a great impact on the output temperature or flow of the air solar collector, thus affecting the drying quality

[0003] In order to improve the stability of the output temperature and flow of air solar collectors, auxiliary heat sources (such as heat pumps and gas hot stoves, etc.) can be used to stabilize temperature fluctuations, but these auxiliary heat sources will consume conventional energy

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