The method of utilization of the energy of geothermal waters

 

(57) Abstract:

The invention relates to the utilization of the energy of geothermal waters and can be used for heating facilities for various purposes. The method includes passing through the intermediate heat exchangers thermal energy of the geothermal water secondary coolant using as an additional source of energy chemical energy of dissolved gases through the use of primary and secondary separators, as an additional source of energy use associated potential energy of the geothermal water, and as a potential energy converters use the expander and the compressor on the same shaft, and to use the energy of dissolved gases using the gas tank and the gas distribution station. This embodiment improves thermodynamic efficiency of energy utilization geothermal water without the need for additional energy sources. 1 Il.

The invention relates to the field of energy, and more specifically to the use and utilization of the energy of geothermal waters and can be used for heating facilities for various purposes.

the process competitive with traditional energy and inhibits the development of geothermal energy. At the same time, many of the exploited geothermal fields wellhead gauge pressure exceeds 5-10 MPa or more, and such waters contain significant amounts of dissolved gases, organic, reaching 4-5 m3/m3and more. The methane content in these waters exceeds more than 90%. When exploitation of these energies are not utilized.

Known method of utilization of the energy of geothermal waters (see ed. St. USSR 1615488, CL F 24 J 3/08, publ. 23.12.1990). In this way, utilization of geothermal energy water occurs by passing through the intermediate heat exchangers thermal energy of the geothermal water secondary coolant using as an additional source of energy chemical energy of dissolved gases through the use of primary and secondary separators.

The disadvantage of this method is that it does not use the additional potential energy of thermal water.

The aim of the present invention is to increase thermodynamic efficiency of energy utilization of thermal waters.

This goal is achieved by passing through the intermediate heat exchangers t the source of energy chemical energy of dissolved gases through the use of primary and secondary separators and characterized in that as an additional source of energy use associated potential energy of the geothermal water, and as a potential energy converters use the expander and the compressor on the same shaft, and to use the energy of dissolved gases using the gas tank and the gas distribution station.

The drawing shows a process diagram of the proposed method. Thermal water from a geothermal well 1 is sent to the primary heat exchanger 2, where it is heated secondary coolant, which is then sent to the consumer of high-grade heat. Next, the waste water flows into the expander 3 for utilization of potential energy. From expander thermal water with low pressure into the separator 4. The liquid phase of the energy from the separator is sent to the drain, and the separated gas is fed into the compressor 5 driven by the expander 3. From the compressor the gas with high pressure and temperature is sent to the secondary heat exchanger 6, where a counter is supplied as a heated fresh water from a municipal water pipe 10. From the heat exchanger 6, the cooled gas is directed into the secondary Sep naturally in paragraph 9 and further for consumer needs.

The method of utilization of the energy of geothermal waters by passing through the intermediate heat exchangers thermal energy of the geothermal water secondary coolant using as an additional source of energy chemical energy of dissolved gases through the use of primary and secondary separators, characterized in that as an additional source of energy use associated potential energy of the geothermal water, and as a potential energy converters use the expander and the compressor on the same shaft, and to use the energy of dissolved gases using the gas tank and the gas distribution station.

 

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