Solar energy and geothermal energy co-generation system

Abstract

The invention discloses a solar energy and geothermal energy co-generation system, which consists of a solar hot air flow generation system and at least one geothermal heat pipe generation system; in the solar hot air flow generation system, a turbine generator set is arranged at the bottom of a solar chimney which is in smooth transition connection with a solar heat collection shed; the geothermal heat pipe generation system is installed below the solar heat collection shed; and in the geothermal heat pipe generation system, an evaporation cavity is in sealed connection with a condensation cavity through a tapered pipe cavity, and a generation device is installed in the condensation cavity. The invention has the advantages of simple structure, high degree of automation, effective utilization of the solar energy and geothermal energy, environment-friendly and low-cost operation and maintenance and continuous, stable and efficient generation, practically contributes to energy conservation, emissions reduction and the like, and promotes the sustainable development of cyclic economy.

Description

[0001] Technical Field The present invention relates to a power generation system, especially a system for synergistic power generation of solar energy and geothermal energy. Background technique [0002] Chinese patent 200710019125.9 discloses a geothermal energy and solar energy complementary hot air power generation system, which includes a chimney, a turbine generator is installed at the bottom of the chimney, and a heat collection shed for collecting solar energy is located below the chimney, and a coil radiator is arranged in the heat collection shed , The coil radiator is connected to the geothermal well, which effectively solves the problem of continuous and stable operation of the solar thermal power station and improves the peak-shaving capability of the station. The problem is that although the system uses geothermal resources and solar energy to generate electricity complementary, its energy loss is large and the power generation efficiency is not high. Because the ...

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Problems solved by technology

The problem is that although the system uses geothermal resources and solar energy to generate electricity complementary, its energy loss is large and the power generation efficiency is not high. Because the system itself has too much direct contact with geothermal resources, the minerals contained in geothermal resources Substances or impurities will have a certain corrosion or damage effect on the system itself, such as pipelines, heat storage tanks and coil radiators, which is not conducive to the long-term stable operation of the system, and the normal operation of the system itself will consume more A lot of energy, such as the electric energy consumed by the circulation pump, etc.

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