Sunlight frequency-division efficient utilization technology

Abstract

The invention relates to a sunlight frequency-division efficient utilization technology. Solar energy is extremely incomparable, the biggest mode of solar energy utilization in the prior art is photovoltaic power generation and photo-thermal power generation, the photovoltaic power generation and the photo-thermal power generation are both converted into electric energy in a way of being different and identical in work, the conversion efficiency is not high, the effect is very little after long-term attacks, and the ceiling is seen, so that the solar energy is greatly improved. The spectrum of sunlight is wide, some frequency bands are very important for photovoltaic power generation, the positive effect is very remarkable, and some frequency bands are low in work efficiency, very weak and even ineffective; similarly, for photo-thermal power generation, frequency bands are difficult to reflect and collect, and are difficult to absorb and utilize by a heating medium. High-efficiency frequency bands of various photovoltaic power generation materials are not completely overlapped, and low-efficiency frequency bands of photovoltaic power generation and photo-thermal power generation can complement each other, so that the sunlight utilization rate is greatly improved by using a frequency band division utilization technology, and the method comprises the following two methods: 1, after light splitting, power is preferentially generated for light of each frequency band according to characteristics, and residual light is used for other purposes; 2, manufacturing a special composite power generation panel, generating power under the panel, and heating by reflecting light and condensing light on the surface layer;

Description

Technical Field

[0001] This patent belongs to the field of high-efficiency utilization of clean energy solar energy Background Art

[0002] Solar power generation is the largest application scenario of solar energy besides plant utilization. The current photovoltaic power generation and solar thermal power generation mostly have low photoelectric conversion efficiency, mostly below 18% (the latest report shows a breakthrough, up to 25%, but still relatively low overall); after long-term research and development, no major progress has been made, and there is also talk of a ceiling.

[0003] The conversion rate of photovoltaic power generation is low. This patent believes that the main reason is that many frequency bands in the sunlight spectrum (hereinafter referred to as frequency bands) have little or no effective effect on photovoltaic panels. If sunlight is divided into frequency bands and used according to their characteristics, and frequency band special effect batteries are developed in a targeted manner, and the residual light is used as a heating medium reasonably, the total utilization rate of light energy will be easily improved.

[0004] In solar thermal power generation, there are frequency bands that are difficult to reflect and collect for use, which complements photovoltaic power generation by complementing each other. Most solar thermal projects are ultimately for power generation, so power generation can be given priority, and the remaining light can be used for heat storage and other uses such as agriculture, forestry, animal husbandry and fishery. In short, developing high-intensity light-effect batteries to achieve frequency-band utilization and realize efficient use of sunlight energy is of far-reaching significance. Summary of the invention

[0005] This patent has two technical paths to achieve; Method 1: The sunlight is concentrated and then restored to parallel light before being split. Each frequency band of light is given priority for power generation according to its characteristics, and the remaining light is used for other purposes.

[0006] The sunlight is moderately concentrated and then restored to parallel strong light. A spectroscope (usually a prism, but other prisms are also acceptable) is used to separate the concentrated strong sunlight into frequency bands (its projection is red, orange, yellow, green, cyan, blue, purple, rainbow, infrared, ultraviolet, etc.)

[0007] Use light from each frequency band to illuminate the high-efficiency strong photocell corresponding to the frequency band to generate electricity efficiently.

[0008] Now we are looking for high-efficiency strong photocells - we will verify the power generation efficiency of all the existing photovoltaic power generation cell materials one by one through the frequency division light irradiation, find the high-efficiency photovoltaic power generation cell materials in this frequency band, and then appropriately strengthen the cell structure to make a cell suitable for strong light generation.

[0009] Research and develop effective materials, scientifically expand material composition formulas, conduct large-scale experiments, in order to discover more efficient battery materials, and develop new materials to improve photoelectric conversion efficiency

[0010] Afterglow can be used scientifically and rationally for inefficient and ineffective residual color light in photovoltaic power generation, heating thermal media, or for agriculture, forestry, animal husbandry, and fishery.

[0011] Method 2: Manufacture a special composite power-generating concentrator, with a power-generating layer at the bottom and a reflective concentrating layer on the top, to achieve the "power generation + reflective concentrating" effect. DETAILED DESCRIPTION

[0012] This patent has two technical paths to achieve, as follows Method 1: After splitting, each frequency band of light is used for power generation according to its characteristics, and the remaining light is used for other purposes;

[0013] Use a condenser to moderately focus the sunlight, then remove the convergence and restore it to parallel strong light. Use a beam splitter (usually a prism, but other prisms are also acceptable) to divide the focused strong sunlight into frequency bands (its projection is red, orange, yellow, green, blue, purple, rainbow, infrared, ultraviolet, etc.)

[0014] Install high-efficiency strong photovoltaic panels corresponding to each frequency band under light of this frequency band to generate electricity efficiently.

[0015] The high-efficiency strong light battery used in

[0014] ---all the existing battery materials are verified for their power generation performance through frequency-divided light irradiation, and high-efficiency power generation battery materials are found, and then the battery structure is appropriately strengthened to manufacture a battery panel suitable for this strong light power generation.

[0016] For obviously effective materials for photovoltaic power generation, we will conduct a large-scale survey, scientifically expand the material component formula, and conduct experiments one by one on a large scale in order to discover more efficient battery materials; at the same time, we will develop new materials to improve the photoelectric conversion rate.

[0017] Reasonable use of inefficient and ineffective residual optical frequency bands for photovoltaic power generation, heating of thermal media, or agriculture, forestry, animal husbandry and fishery: 1) When used at close range: the remaining strong light is directly used to heat the heat medium, or the remaining strong light is dispersed and then used to illuminate agricultural, forestry, animal husbandry, fishery and other environmental places; 2) When used at a long distance: use a light combining mirror to mix and use, that is, directly irradiate and heat the hot medium, or disperse the strong light and irradiate the agricultural, forestry, animal husbandry and fishery and other environmental places.

[0018] In the current concentrator shape, a thin-film power generation layer is first set on the bottom layer, and a specific reflective layer is set on the upper surface, which can mainly reflect the remaining light with high efficiency and transmit a large amount of high-efficiency power generation light.

[0019] Clean energy is the inevitable direction of human social development. Scientific and technological innovation has become a national policy. Scientific and technological progress is a gradual process. Using light in different frequency bands is a scientific and reasonable approach. The development of strong and high-efficiency photovoltaic cells in each frequency band is of far-reaching significance and will surely become more and more perfect, eventually realizing integrated power generation.

Claims

1. The technology for efficient utilization of sunlight in different frequency bands is a patent for the method of utilizing sunlight in different frequency bands (including methods one and two).

2. According to claim 1, the technology for efficient utilization of sunlight frequency bands is a method for utilizing sunlight frequency bands, wherein the method 1 is characterized in that After the sunlight is moderately focused and restored to parallel light, it is dispersed and arranged into light bands of varying frequencies using a beam splitter (usually a prism) (projected into red, orange, yellow, green, blue, indigo and violet rainbow bands).

3. The solar light frequency band efficient utilization technology according to claim 1 is a method for utilizing solar light frequency bands, characterized in that The dispersedly arranged light of each frequency band in claim 2 is used to illuminate the high-efficiency solar panel corresponding to the frequency band, thereby generating electricity with high efficiency.

4. The solar light frequency band efficient utilization technology according to claim 1 is a method for utilizing solar light frequency bands, characterized in that The high-efficiency solar panels in each frequency band in claim 3 are obtained by verifying the existing solar panels one by one under the irradiation of colored light in each frequency band, and then appropriately enlarging the circuit and other structures to suit the strong light power generation conditions.

5. The technology for efficient utilization of sunlight frequency bands according to claim 1 is a method for utilizing sunlight frequency bands, characterized in that For the effective battery materials in claim 4, the battery material formula should be scientifically expanded in order to discover more efficient battery materials; at the same time, new photovoltaic battery materials should be developed to conduct long-term exploration to improve the overall efficiency of photovoltaic power generation.

6. The technology for efficient utilization of sunlight frequency bands according to claim 1 is a method for utilizing sunlight frequency bands, characterized in that The continued use of the remaining light bands after the use of claim 3 in the series of colored light bands of different frequency bands obtained in claim 2: When used at close range: directly irradiate and heat the heat medium, or disperse the strong light and irradiate the agricultural, forestry, animal husbandry and fishery environment; When used at a long distance: use a light combining mirror to mix and use, that is, directly irradiate and heat the hot medium, or disperse the strong light and irradiate the agricultural, forestry, animal husbandry and fishery and other environmental places.

7. According to claim 1, the technology for efficient utilization of sunlight in frequency bands is a method for utilizing sunlight in frequency bands. Method 2 is characterized in that the concentrator is a special double-layer structure, the lower structure is a photovoltaic power generation panel, which deliberately receives high-efficiency frequency band photovoltaic power generation; the upper surface is highly reflective of light in a specific frequency band (weak-efficiency light for photovoltaic power generation), and concentrates light to store heat for reuse.