Ultralong gravity heat pipe geothermal development system assisted by peltier effect

Abstract

The invention discloses an ultralong gravity heat pipe geothermal development system assisted by a peltier effect. The system consists of a heat pipe heat conducting system, a heat pipe condensate reflux system and a ground heat exchange system. A heat pipe evaporation section is contacted with a geothermal resource; a heat pipe insulation section is connected with a ground heat exchanger; a condensation reflux pipe is arranged in a heat pipe; a ground part is connected with the heat exchanger; and a semiconductor temperature difference element using the peltier effect is mounted in the condensation reflux pipe for lengthening the heat pipe evaporation section to prevent an evaporation working medium from condensing beforehand to influence the heat conducting efficiency.

Description

technical field [0001] The invention relates to a method for developing geothermal resources by using thermal superconducting technology, in particular to a geothermal development system assisted by the Peltier effect with ultra-long gravity heat pipes. Background technique [0002] Gravity heat pipe (also known as two-phase closed thermosiphon) is a new type of high-efficiency heat transfer element. The working medium is heated and gasified at the evaporation section of the heat pipe, and then liquefied in the condensation section to release heat, and returns to the heat pipe under the action of gravity. heat, and the process repeats itself. Heat pipes have outstanding advantages such as high heat transfer efficiency, low cost, simple structure, and long-distance heat transfer without external force. In recent years, they have been widely used in various fields, especially in deep high-temperature geothermal development. potential. Due to the deep buried high-temperature ...

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Problems solved by technology

[0004] The present invention provides a super-long gravity heat pipe geothermal development system assisted by the Peltier effect in order to solve a series of problems existing in the known technology, such as premature condensation of heat pipe steam, difficulty in maintaining vacuum degree, and excessive vapor-liquid flow resistance. Utilize the Peltier effect to realize the extension of the evaporation end of the ultra-long gravity heat pipe, effectively prevent the problem of premature condensation of the heat pipe steam, and improve the heat conduction efficiency of the ultra-long gravity heat pipe

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