Drying method by using solar energy and device thereof

Abstract

The present invention discloses a wood drying method by using solar energy, comprising the steps of: putting the wood to be dried in a drying cabinet (8); supplying heat to the drying cabinet; and stopping the supply of heat when the temperature T2 of the drying cabinet (8) is higher than the setting drying temperature of the wood to dry the wood under the setting drying temperature. The movable drying device by using solar energy has stable running, constant drying temperature and continuous drying function with lower power consumption, higher solar energy conversion efficiency and good drying quality, thereby reducing the drying cost.

Description

technical field [0001] The invention relates to utilization of solar heat, in particular to a solar drying device in which working fluid flows through a heat collector and a drying method using solar energy. technical background [0002] Energy is an important material basis for economic construction and social development. Due to the increasing demand for energy in the world, the increasing shortage of conventional energy, rising oil prices, global warming and environmental pressure, countries around the world are turning their strategic sights to renewable energy in order to seek energy security and sustainable development of human society. develop. Therefore, renewable new energy will become the top priority of energy development in the 21st century. As a clean, cheap and inexhaustible renewable energy, solar energy is being valued by various countries and industries, and has attracted more and more attention. my country is very rich in solar energy resources. Accordin...

AI Technical Summary

Problems solved by technology

Therefore, the temperature control in the drying box is poor and the heat is unstable

At the same time, in winter, night and continuous rainy weather and other sunlight conditions do not allow, only rely on energy storage heat to dry, without other auxiliary heat sources, the controllability and stability of continuous drying are poor.

[0011] 2. The circulation heat transfer efficiency of traditional solar collectors is not high, and the efficiency of solar energy conversion to heat energy is low

Due to the heat loss in the two heat exchanges, the drying efficiency is low and the overall energy utilization rate is low

[0012] 3. The volume of the heat exchange coil in the regenerator is fixed, and the stored heat is only adjusted by increasing or decreasing the volume of the heat storage medium. In actual operation, the controllability of the heat storage is poor, and the operation is inconvenient

[0013] 4. The above structure is a fixed placement method, and the mobility is poor

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