Series and parallel heat exchange structure and thermal photovoltaic power generation device

Abstract

The invention discloses a series and parallel heat exchange structure and a thermal photovoltaic power generation device. The series and parallel heat exchange structure comprises more than two heat exchange passages which are connected in parallel, wherein each heat exchange passage comprises more than two heat exchange units, in each heat exchange passage, the heat exchange units are connected in series or in parallel, each heat exchange unit comprises a plurality of hot-end heat sinks and a plurality of cold-end heat sinks, the plurality of hot-end heat sinks are connected in parallel and are used as hot liquid circulation passages, the plurality of cold-end heat sinks are connected in parallel and are used as cold liquid circulation passages, and the hot-end heat sinks and the cold-endheat sinks are alternatively arranged. By the series and parallel heat exchange structure, the problem of integration of the heat exchange units is solved; moreover, the series and parallel heat exchange structure is simple and compact, interconnection of the plurality of heat exchange units can be easily achieved to form a larger-power thermal photovoltaic power generation system; and the flowing resistance loss of the heat exchange structure on a heat exchange medium is small, the inlet and outlet temperature difference of cold- and hot-end mediums of each heat exchange unit is small, and the integral thermoelectric conversion efficiency is favorably improved.

Description

Technical field [0001] The invention relates to the technical field of thermovoltaic power generation, in particular to a series-parallel heat exchange structure and a thermovoltaic power generation device. Background technique [0002] Thermoelectric material is a kind of functional material that directly converts heat and electric energy based on thermoelectric effect (Seebeck effect, Peltier effect and Thomson effect). Based on Seebeck effect, thermoelectric material can be made into thermovoltaic power generation system. Thermal energy is directly converted into electrical energy, which is then used for industrial waste heat recovery and heat source power generation such as radioisotopes and geothermal heat. Thermovoltaic power generation systems made of thermoelectric materials have the advantages of simple structure, small size, no moving parts, long life, safety, and environmental protection. Currently, there is no large-scale integrated heat exchange device to meet actual...

AI Technical Summary

Problems solved by technology

The thermal photovoltaic power generation system made of thermoelectric materials has the advantages of simple structure, small size, no moving parts, long life, safety, and environmental protection. At present, there is no large-scale integrated heat exchange device to meet the actual application requirements.

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