Solar tile-shaped grooved cylindrical light-gathering device

Abstract

The invention discloses a solar tile-shaped grooved cylindrical light-gathering device, which comprises multiple groups of cylindrical Fresnel lenses, a grooved light-gathering funnel and a solar photovoltaic cell, wherein the cylindrical Fresnel lenses are connected together. A circular-arc glass tile is formed on an ultra-white glass plate, and linear stripes are carved on the arch-shaped inner surface of the glass tile to form small prisms of different sizes at unequal intervals, so that incident light rays of the sun become a light focal strip after being refracted and a cylindrical Fresnel lens is formed; once the focal strip is deviated from the cell along with continuous change of the azimuth angle of sunlight, the focal strip falls on a reflecting surface of a lower grooved light-gathering funnel; and after being reflected by the reflecting surface, the focal strip still falls on a solar cell panel at the bottom. A certain included angle is formed between the reflecting surface and the vertical surface of the grooved light-gathering funnel, and a light-gathering focal strip falling on a radiating surface still falls on the photovoltaic cell at the bottom after being reflected by adjusting the included angle, so that the light-gathering effect is achieved.

Description

Technical field: [0001] The invention relates to a solar concentrator, in particular to a solar tile-shaped trough-type cylindrical concentrator. Background technique: [0002] Energy is the most fundamental and important problem that human beings need to solve when facing the balance between economic development and environmental maintenance. The limited amount of energy storage has prompted human beings to develop, search for, and apply new alternative energy sources. Solar energy is an extremely abundant and clean energy source. The total amount of solar energy received by the earth every year is 1×10 18 kWh, equivalent to 5×10 14 barrel of crude oil (nearly a thousand times the proven crude oil reserves), is more than 10,000 times the world's annual total energy consumption. Since electricity is usually the most common and most convenient to use, solar photovoltaic power generation technology can directly convert solar energy into electrical energy, so it is the most ...

AI Technical Summary

Problems solved by technology

However, the concentrating photovoltaic power generation technology is still immature. For example, the parabolic concentrator of the tracking concentrating photovoltaic power generation technology, the spherical concentrator without tracking, and the trough concentrator of the reflective concentrating technology can play a certain role. Concentrating effect, but the installation is inconvenient, the maintenance is difficult and the cost is high, and it cannot be promoted in a large area, which limits the wide application of this technology. The above problems need to be solved urgently

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