Solar gas turbine power generation system based on photo-thermal principle

Abstract

The invention provides a solar gas turbine power generation system based on a photo-thermal principle. The solar gas turbine power generation system comprises a gas turbine, a solar energy collectingdevice and a solar reflector. The gas turbine comprises an air compression impeller, a turbine, a heat regenerator and a combustion chamber, the heat regenerator comprises an outer shell, a middle shell and an inner shell, a low-temperature air inlet channel is formed between the middle shell and the outer shell, and a high-temperature air inlet channel is formed between the middle shell and the inner shell; an inlet and an outlet of the low-temperature air inlet channel communicate with an outlet of the air compression impeller and an inlet of the combustion chamber correspondingly, and an inlet and an outlet of the high-temperature air inlet channel communicate with an outlet of the turbine and the outside correspondingly; and the solar energy collecting device comprises a heat absorbingplate, and a shell of the heat regenerator is wrapped with the heat absorbing plate. By means of the solar gas turbine power generation system, a combined cycle of solar energy and the gas turbine can be achieved, the energy utilization rate is higher than that of single solar power generation or gas turbine power generation, and efficient utilization of energy is achieved.

Description

technical field [0001] The invention relates to the technical field of energy recovery and utilization, in particular to a solar gas turbine power generation system based on the photothermal principle. Background technique [0002] Solar energy is a clean, non-polluting renewable energy source. Its development and utilization are of great significance for alleviating the current pressure of fossil energy consumption and environmental pollution. [0003] Solar thermal power generation technology is to convert solar thermal energy into electric energy technology. There are four main methods of solar energy focusing: dish type, tower type, trough type and Fresnel type. The direct thermal power generation efficiency of solar thermal power generation technology is low, generally around 20%, and a large amount of light-to-heat conversion energy has not been utilized. In addition, a single solar thermal power generation system cannot provide sufficient energy at night or on rainy ...

AI Technical Summary

Problems solved by technology

However, since the reflector is fixed and the sun rotates, there will be a problem that the sun does not always shine directly on the reflector. When the sun obliquely shines on the reflector, the reflected sunlight is less, so that the solar energy cannot be fully utilized, resulting in Energy waste

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