Solar drying device

A technology of solar drying and drying equipment, which is applied in the direction of solar thermal equipment, solar thermal energy, solar thermal power generation, etc., can solve the problems of large fluctuation range of drying temperature, low solar energy efficiency, and large heat loss, etc., so as to improve drying quality and heat collection The effect of large device area and strong heat storage capacity

Inactive Publication Date: 2010-12-08
BEIJING FORESTRY UNIVERSITY
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  • Abstract
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Problems solved by technology

The efficiency of the dryer absorbing solar energy is low, the heat loss is large, the drying temperature fluc

Method used

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Embodiment Construction

[0047] Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0048] 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.

[0049] 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, wherein the greenhouse-type air heat collector 4 is arched as a whole, and its inner wall is provided with an insulation layer 2, and the interior forms an arched cross-section One end of the cavity is closed, and the other end is provided with a closed door 1 that can be opened and closed. The closed end of the cavity is made of thermal insulation material to form a thermal insulation layer 2 . The inner cavity of the greenhouse type air heat collector 4 i...

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Abstract

The invention relates to a wood solar drying device. The drying device adopts an integral end-fan structure of a greenhouse and a heat collector and combines the advantages of the greenhouse and the heat collector. The heat sources of the drying device comprise a heat-pipe solar heat collector located on a south-end wall and an integral arched solar heat collector, and the heat collectors have large area and high heat efficiency. The two heat collecting systems can be used independently or cooperatively according to required drying temperature, and temperature control is flexible and stable. A heat-accumulation air-guiding wall is arranged inside the drying device so as to ensure the continuity and the uniformity of drying. A technical method of the wood solar drying device is as follows: when solar energy is sufficient in the daytime, the drying device is in a heating and drying stage, and when solar energy is insufficient in the night or on cloudy days, the drying device is in a heat preservation stage. The solar drying device has stable operation, high solar conversion efficiency and obviously reduced drying energy consumption, thereby having low drying cost and high drying quality.

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. 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. According to statistics, the total amount of so...

Claims

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Application Information

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IPC IPC(8): F26B9/06F24J2/04F24J2/32F24J2/34F24J2/46F24J2/51F24S10/95
CPCY02E10/44
Inventor 伊松林高建民张璧光王天龙
Owner BEIJING FORESTRY UNIVERSITY
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