Double-working-media natural circulating bin type solar dryer

Abstract

A double-working-media natural circulating bin type solar dryer can realize high-efficient heating and dewatering of things to be dried by controllable indirect heating and convection drying manner on the premise of no consumption of auxiliary energy and no power drive during dewatering, drying and long-term safety storage. Further, by temperature regulating and dehumidifying, the inside environment of a storage device can be kept dry by natural ventilation, and damage caused by insects, birds and rats and dust pollution are prevented; energy saving, emission reduction and low-carbon effect are achieved, production management cost is reduced, and safety, sanitation and long-term storage of storage things are guaranteed. The double-working-media natural circulating bin type solar dryer is widely applicable to rural households and massive production and application in the fields of the industry and the agriculture.

Description

technical field [0001] The invention relates to the field of solar thermal utilization. It is a silo-type solar drying device that uses gaseous and liquid fluids as working fluids, indirect heating, convection drying and storage in a natural circulation mode. Background technique [0002] Solar drying is another major form of solar thermal utilization. There are generally two drying methods, one is direct absorption, also known as open; the other is indirect absorption, also known as convection drying. [0003] The former is the traditional beach drying, which requires direct sunlight and a large drying platform. Moreover, in the process of direct exposure to the sun, the dried object is prone to local overheating and environmental pollution. The latter needs to be equipped with a corresponding solar air heat collector to generate a large flow of hot air, and force the hot air to permeate into the object to be dried for dehydration and drying. [0004] From the perspecti...

AI Technical Summary

Problems solved by technology

It has not been seen so far that can be generally applied to ordinary rural households and large-scale industrial and agricultural industrialization applications. It uses air and liquid fluids as working fluids, completely relies on natural circulation for indirect heating, convective drying, and at the same time can dry items. For long-term safe storage and preservation, a report on the technical development and production application of the "two in one" silo-type solar drying device

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