Solar energy collecting device and building component by utilizing same

Abstract

The invention discloses a solar energy collecting device, which comprises a closed-type framework, a reflection mirror and an absorber. A transmission surface of the closed-type framework is covered by a glass plate, the reflection mirror is installed inside the closed-type framework and is provided with a long focal line, the absorber is installed on the position of the long focal line of the reflection mirror, and the reflection mirror is adjusted according to the position variation of the sun, so the sunlight can be reflected to the focal line. The solar energy collecting device has the following advantages that: the solar condenser is installed inside the closed-type framework, so the reflection rate is greatly improved in large area, the wind resistance and the sand pollution is unnecessary to consider, the consumption of the material is greatly reduced, the cost is reduced, the wind power influence is prevented, the light weight structure also greatly reduces the power and the strength of a tracing drive system, the tracing precision can be improved, and the cost can be reduced. The solar energy collecting device also can be used for building a top or a framework of a building, so not only the building cost can be saved, but also the popularization of the device can be realized.

Description

technical field [0001] The invention relates to the technical field of solar energy application, in particular to a solar energy concentrating device. Background technique [0002] As a kind of clean and environment-friendly energy, solar energy has been devoted to its development and utilization for a long time. Especially in recent years, due to the rising oil price, the improvement of environmental protection requirements, and the limitation of atmospheric carbon dioxide emissions, countries have worked harder to carry out research on solar energy utilization. [0003] Due to the low power density of solar radiation, in order to make full use of solar energy, it is a very important technology in solar energy utilization to track the position changes of sunlight and convert the light into heat and electricity. [0004] In the existing solar energy concentration technology, such as U.S. Patents US4296737, US4770162, US4148564 and US5832362 respectively disclose solar energ...

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Problems solved by technology

[0004] In the existing solar energy concentration technology, such as U.S. Patents US4296737, US4770162, US4148564 and US5832362 respectively disclose solar energy concentration devices with structures such as parabolic reflectors, Fresnel mirrors, and planar strip reflectors, but there is a The main problem is that the structure's own gravity and the need to withstand the effects of wind increase the mass of the structure

Normal wind will distort and distort the mirrors, reducing collection efficiency

If it is strong wind and strong wind, the whole system will be destroyed. At the same time, these collection systems cannot be protected against rain and dust, and are inconvenient to maintain, which makes the cost and cost continue to rise.

[0005] Although there are some small-scale solar energy utilization systems that cover the surface of the absorbing device with glass plates to achieve dust-proof or wind-resistant effects, the use area is small, and a single piece of glass is covered on the device shell to prevent dust pollution, but it leads to The reduction of heat absorption performance, so it cannot form the effect of industrial use

In addition, the single focal line length of the small trough-type linear focusing device is short, and the single absorbing device is also short, which has the disadvantages that the reflected light cannot be fully obtained by the absorbing device, the boundary loss is large, and the efficiency is low

In addition, the material utilization rate is also low and the manufacturing cost is high

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