Geothermal power generation system and method using heat exchange between working fluid and molten salt

摘要

A geothermal power generation system using heat exchange between working fluid and molten salt includes a heat collecting unit. A plurality of molten salt containing units are disposed in the ground at predetermined intervals from each other. A heat exchanging unit transfers a heat source of the heat collecting unit to the molten salt in the plurality of molten salt containing units. A plurality of working fluid containing units respectively surround the molten salt containing units and are disposed in the ground at predetermined intervals from each other. A turbine unit is connected to the plurality of working fluid containing units, and generates mechanical energy using steam energy that is generated by the plurality of working fluid containing units. A power generating unit is connected to the turbine unit, and generates electrical energy using the mechanical energy.

主权项

1. A power generation system using heat exchange between working fluid and molten salt, comprising:
a heat collecting unit; a plurality of molten salt containing units which contain molten salt therein, the plurality of molten salt containing units disposed in ground at predetermined intervals from each other; a heat exchanging unit which transfers a heat energy from a heat source of the heat collecting unit to the molten salt in the plurality of molten salt containing units to heat the molten salt; a plurality of working fluid containing units which contains working fluid therein, the heat energy is transferred to the working fluid from the heated molten salt, each of the plurality of working fluid containing units surround the respective molten salt containing units and the each of the plurality of working fluid units is disposed in the ground at predetermined intervals from each other; a turbine connected to the plurality of working fluid containing units, the turbine generating mechanical energy using steam energy that is generated by the plurality of working fluid containing units; and a power generating unit connected to the turbine, the power generating unit generating electrical energy using the mechanical energy; wherein each of the plurality of molten salt containing units comprises a vertically linear tube having an upper section connected to the heat exchanging unit and a lower section inserted into the ground, wherein each of the plurality of working fluid containing units comprises a U-shaped tube having an upper section exposed above the ground and a lower section inserted into the ground, wherein the working fluid is contained inside the U-shaped tube, each of the U-shaped tube having an inlet and an outlet above the ground, such that each of the outlet is combined into a single outlet, and the working fluid is delivered to the U-shaped tube through the respective inlets, wherein the single outlet is connected to the turbine; wherein the working fluid is heated by the heated molten salt or a heat source in the underground region to produce steam by vaporization of the heated working fluid in the U-shaped tube; the steam is delivered to the turbine via the outlet of the U-shaped tube to generate electric power.