In-situ geothermal power generation system

Abstract

The invention provides an in-situ geothermal power generation system. The system comprises a heat pipe, a thermoelectric temperature difference power generation device and a magnetic levitation powergeneration device. The upper end of the heat pipe extends to the earth's surface or a water body. The lower end of the heat pipe is located at a geothermal source. A circulating cavity is formed in the heat pipe. A circulating working medium is arranged in the circulating cavity. The thermoelectric temperature difference power generation device is located at the lower end of the heat pipe. The magnetic levitation power generation device is located in the middle of the heat pipe. The thermoelectric temperature difference power generation device and the magnetic levitation power generation device output electric energy outwards through electric energy output ports correspondingly. According to the system provided by the invention, the heat pipe is directly buried deep underground, the heat pipe is located at the geothermal source, on the one hand, the thermoelectric temperature difference power generation device located on the lower segment of the heat pipe can directly convert geothermal energy into electric energy, on the other hand, a formed upward gaseous working medium drives the magnetic levitation power generation device in the middle of the heat pipe when the circulating working medium becomes the gaseous working medium during phase changing, geothermal energy is converted into mechanical energy which is then converted into electric energy, and the system has the advantages of geothermal in-situ power generation, low energy loss, high power generation efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of geothermal energy power generation, and relates to a system for generating electricity by utilizing geothermal energy, in particular to an in-situ geothermal power generation system for directly utilizing geothermal energy to generate electricity. Background technique [0002] The process of industrialization is advancing. With the rapid growth of energy consumption, the energy crisis and environmental pollution are becoming more and more serious. In the foreseeable future, energy problems will become more prominent. Countries all over the world are exploring the development and utilization of renewable energy. Geothermal energy comes from the renewable heat energy deep in the earth, mainly from the decay of the earth's molten magma and radioactive materials. The temperature inside the earth is as high as 7000°C, and when the heat is transmitted to the crust that is closer to the ground, it still has cons...

AI Technical Summary

Problems solved by technology

It is conceivable that such schemes can only use geothermal energy indirectly, and need to transmit geothermal energy to the ground through a carrier, and this process will cause huge losses, and there are difficulties in energy extraction, high energy loss, and low power generation efficiency. question

Due to the above problems, the current geothermal power generation accounts for a small proportion, and the power generation method needs to be broken through

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