HELIO-GEOTHERMAL STATION, AND ITS OPERATION METHOD Russian patent published in 2012 - IPC F24J2/42 F03G6/04 

FIELD: power industry.

SUBSTANCE: underground circuit consists of input well 1, underground heat exchange chamber 2 and output well 3 and compressor 4 for air injection to well 1. Power circuit includes helioplant 5 consisting of three heliocollectors 6-8, heat exchanger 9 one inlet of which is connected to output well 3 of underground circuit, and the other inlet of which is connected to heliocollector outlet 6, and the outlet is connected to heat exchanger 10 with low-boiling working medium and simultaneously with steam generator 11 connected to thermal power plant 12, as well as air cooling plant 13. At that, heliocollector 7 outlet is connected to one inlet of compressor 4 the outlet of which is connected to well 1 head. Utility circuit includes control unit 14, system 15 of heat utilities and heat exchanges 16, 17, 18. One inlet of heat exchanger 16 is connected to outlet of steam generator 11 of power circuit, and the other outlet is connected to air cooling plant 13, and one outlet is connected to control unit 14, and the other outlet is connected to heat exchanger 18. One of the outlets of control unit 14 is connected to inlet of heat utilities system 15, and the other outlet is connected to inlet of heat exchanger 17 connected to heliocollector 8 of helioplant 5. Outlet of heat utilities system 15 is connected to the second inlet of heat exchanger 18 the outlet of which is connected to the second inlet of compressor 4. As working medium there initially used is the gas that is first dried using solar power, and then it is pump to underground heating chamber. After that, heated gas is supplied under pressure from underground circuit to power circuit - to heat exchanger of air collector, where it is heated using solar energy, and then, it is used for heating of low-boiling working medium to the steam formation temperature and conversion of working medium to steam. That steam is passed through steam generator for electric power generation. At the same time, hot gas is supplied to utility circuit to be used for heating needs; for that purpose, heat carrier from utility circuit is heated by its help to the temperature of 70°C, which is then heated by means of solar energy to 120°C, and after that, it is supplied to utility circuit to consumer. Introduction to HGS of helioplant consisting of three heliocollectors, one of which is used for drying of gas pumped to the well, the second one is used in power circuit for heating of hot gas and for its further use for heating up to the steam formation temperature of low-boiling working medium, and the third one - for heating of heat carrier in utility circuit, provides the possibility of using the heat of low-temperature internal parts of the earth in order to obtain electricity and provide the heating of housing developments.

EFFECT: possible use in operation conditions of geothermal power plants built on low-temperature internal parts of the earth.

2 cl, 1 dwg