Solar energy temperature difference power generation system based on liquid metal thermal switch

Abstract

The invention discloses a solar energy temperature difference power generation system based on a liquid metal thermal switch. The system comprises a solar energy condenser, a thermal storage device, a temperature difference power generating component and an electric power storage and control device, wherein one communication pipeline is arranged between one end of a coiled pipe of the thermal storage device and a liquid metal inlet of a hot end flowing channel, one communication pipeline is arranged between the other end of the coiled pipe of the thermal storage device and a liquid metal outlet of the hot end flowing channel, consequently a loop circuit is formed, a temperature control valve is arranged on the communication pipeline which connects the coiled pipe and the liquid metal inlet of the hot end flowing channel, an electromagnetic pump is arranged on the communication pipeline which connects the coiled pipe and the liquid metal outlet of the hot end flowing channel, the temperature control valve and the electromagnetic pump are connected with the electric power storage and control device through a signal and electrical energy transmission wire, a temperature difference power generation module is connected with the electric power storage and control device through a power storage wire, and the electric power storage and control device is further provided with a wire used for outputting electrical energy outwards. The system has the advantages that the problems that in prior art, the output electrical energy is unstable, the utilization efficiency of the temperature difference thermal energy is low and the like are solved, and the power generation module can be operated under the condition near the optimum working condition as far as possible.

Description

technical field [0001] The invention relates to a semiconductor thermoelectric power generation device utilizing solar energy, in particular to a solar thermoelectric power generation system based on a liquid metal thermal switch, which belongs to the application field of new energy technologies. Background technique [0002] In 1821, German physicist Seebeck discovered that in a closed circuit composed of two different metals (or semiconductors), when the temperatures at the two contacts are different, an electric potential will be generated in the circuit, which is the thermoelectric effect. Also known as the "Seebeck effect". After his comparative study of many materials, he laid the foundation for future thermoelectric research. In 1885, Rayleigh (Rayleigh) studied the possibility of using thermoelectric phenomenon to generate electricity, until Germany's Altenkirch (Altenkirch) proposed the principle of thermoelectric power generation: better thermoelectric materials m...

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Problems solved by technology

[0005] Aiming at the above-mentioned deficiencies in the prior art, the purpose of the present invention is to overcome the disadvantages of low utilization efficiency of the existing temperature difference heat energy, and when the temperature of the heat source is too low, its output electric energy cannot be accumulated, and to provide a stable output electric energy and temperature difference heat energy Solar thermoelectric power generation system based on liquid metal thermal switch with high utilization efficiency

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