Gas Cooling and Heat Utilization Devices for Concentrating Solar Energy Systems

Abstract

The invention provides a gas-cooling and heat-utilizing device of a concentrating solar system and relates to the field of photovoltaic technology. The gas-cooling and heat-utilizing device of the concentrating solar system concretely comprises a gas filter (2), a concentrating solar box body (3), a gas driver (1) and\or a blade generator (10), a gas pipeline (5) and a gas heat utilizing device (4), wherein the concentrating solar box body (3) is arranged in a serial, parallel or multi-stage parallel form in the gas pipeline (5), and forms a closed or quasi closed gas loop together with the gas driver (1) and\or a blade generator (10), the gas filter (2) and the gas heat utilizing device (4) through the gas pipeline (5). The technical problem to be solved by the invention is providing the gas-cooling and heat-utilizing device of the concentrating solar system, which is used for keeping high sealing property and high cleanness of the entire gas loop, and pollutants such as external dust, grease and water vapor are prevented from entering into a concentrating solar box body.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a gas cooling and heat utilization device for a concentrated solar system. Background technique [0002] At present, the third-generation photovoltaic power generation technology represented by concentrating photovoltaic power generation (HCPV) is experiencing rapid development, and its related technologies have become research and development hotspots of various research institutes and enterprises. Various concentrating photovoltaic demonstration projects and large-scale power stations It is also appearing all over the world. As far as its main principle is concerned, concentrating photovoltaic power generation technology (CPV) refers to the use of lenses or mirrors to focus the received sunlight, so that the focused high-energy-density light spot is aligned on a small-area, high-efficiency silicon or polycarbonate. Combine compound solar cell chips to obtain energy outpu...

AI Technical Summary

Problems solved by technology

[0005] However, the working life of the breathable waterproof and dustproof material used in the ventilation window is very limited, and it is difficult to meet the working life (25 years) requirements of the photovoltaic power generation system.

And under some extreme weather conditions, it is easy to be damaged or suffer local damage, allowing foreign particles, water vapor or grease to enter, destroying the working environment of the system, reducing the transmittance of the optical system, damaging the electrical connection and causing Corrosion and oxidation of the core components of the system, causing irreversible damage

In addition, the ventilation window area is usually very small, and in order to ensure waterproof and dustproof requirements, its ventilation capacity is very limited, which can only meet the needs of balancing the internal and external pressure differences, and it is difficult to make the gas flow inside and outside the box, and the modules accumulate under sunlight. Not only can the heat not be utilized, but it will also increase the internal working temperature of the box, affecting the working state of the photovoltaic module, reducing the system efficiency and shortening the life span.

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