Heat-absorbing, heat-storage and water-collecting integrated solar drying system

Abstract

The invention discloses a heat-absorbing, heat-storage and water-collecting integrated solar drying system, which comprises a heat-absorbing module, a heat-storage module, a heat-conducting module, adrying module, a fan, a water-collecting module and a temperature-control module. The heat-absorbing module is connected with the heat-storage module through the heat-conducting module, and the heat-storage module comprises a metal sponge, an organometallic framework loaded on the metal sponge, and a hydrate salt loaded on the organometallic framework; the drying module comprises a material frame,a conveying belt, a hot air inlet, an air outlet, a transparent cover, a heat-storage space and a heat-insulating layer; the fan is placed at the hot air inlet, the heat-absorbing module and the heat-storage module are connected to the heat-storage space through the hot air inlet, and the heat-storage space is coated with the heat-insulating layer; and the water-collecting module is connected with the heat-storage module through a pipeline. The multiple functions of heat absorbing, heat storage, heat releasing and water collecting are integrated, the problem of unstable and discontinuous solar energy and the problem of effective energy storage and heat storage are solved, the drying speed is high, the drying time is short, and various materials at different temperatures can be dried simultaneously.

Description

technical field [0001] The invention relates to the technical field of solar drying systems, in particular to a solar drying system integrating heat absorption, heat storage, and water collection. Background technique [0002] Solar drying refers to the drying process using solar energy as energy. It is generally divided into two forms of utilization, one is to directly expose to sunlight, and the other is to use solar energy to heat a certain fluid, and then directly or Indirect heating of the object to be dried. At present, the method of drying wheat, corn and other crops in rural areas is still the first direct exposure method, which has problems such as low drying temperature, long time and poor drying effect. The second form of solar drying can drastically reduce drying time and improve product quality. [0003] However, there are still many problems in this solar drying system, which hinder its popularization and application. First of all, solar energy is an intermi...

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Problems solved by technology

[0003] However, there are still many problems in this solar drying system, which hinder its popularization and application.

First of all, solar energy is an intermittent energy source with low energy density, discontinuity, and instability; secondly, the current simple solar drying problem has the disadvantages of low capacity and low thermal efficiency; finally, the effective energy storage and thermal storage of solar energy has not been solved so far. The problem is that rocks, pebbles and water tanks are commonly used for energy storage and heat storage, which have poor effects and occupy a large area; in addition, there is still a lack of research on the ability of a single solar drying system to dry materials at different temperatures at the same time

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