Method for drying wood by using solar energy

A technology of solar drying and solar thermal collectors, applied in the directions of solar thermal energy, solar thermal power generation, solar thermal collectors, etc., can solve the problems of large fluctuation of drying temperature, low solar energy efficiency, low drying efficiency, etc., and improve the drying quality. , the effect of large collector area and low cost

Inactive Publication Date: 2010-12-08
BEIJING FORESTRY UNIVERSITY
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AI Technical Summary

Problems solved by technology

The efficiency of the dryer absorbing solar energy is low, the heat loss is large, the drying temperature fluctuates greatly when drying materials, the quality of dried materials is poor, and the drying efficiency is low

Method used

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  • Method for drying wood by using solar energy
  • Method for drying wood by using solar energy
  • Method for drying wood by using solar energy

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Embodiment Construction

[0065] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0066] Such as figure 1 As shown, the solar drying device of the present invention is composed of a heat collecting system and a drying system for collecting solar energy and converting it into heat energy for drying materials to be dried.

[0067] refer to figure 1 , 2 and 3, the heat collection system includes a greenhouse-type air heat collector 4 and a heat pipe solar heat collector 8 .

[0068] Among them, the greenhouse-type air heat collector 4 is arched as a whole, and its inner wall is provided with an insulating layer 2, and an arched cavity is formed inside. One end of the cavity is closed, and the other end is provided with an openable closed door 1. The closed end of the cavity is made of thermal insulation material, forming the thermal insulation layer 2. The inner cavity of the greenhouse type air heat collector 4 is divided i...

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PUM

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Abstract

The invention relates to a method for drying wood by using solar energy. The method comprises the following steps of: placing a wood to be dried in a drying chamber (16); supplying heat to the drying chamber, and when the temperature T3 of the drying chamber (16) rises and is 2 DEG C higher than the set drying temperature of the wood, stopping the heat supplying of a greenhouse-type heat collector (4) to the drying chamber (16) in order to dry the wood at the set drying temperature. The method for drying wood by using solar energy of the invention is convenient to run and flexible to control the temperature; the drying temperature can be constant and the continuous drying is realized; moreover, the drying energy consumption is reduced remarkably, the drying cost is reduced and the better drying quality is obtained; in addition, the solar heat collector in the method of the invention has large area, high heat efficiency and high conversion efficiency.

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. Background technique [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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F26B3/02F26B9/06F24J2/32F24J2/30F24S10/30F24S10/95
CPCY02B10/20Y02E10/44
Inventor 高建民伊松林张璧光王天龙
Owner BEIJING FORESTRY UNIVERSITY
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