AUTONOMOUS THERMOELECTRIC GENERATOR ON PIPELINE Russian patent published in 2019 - IPC C23F13/00 

FIELD: thermoelectric-power industry.

SUBSTANCE: invention relates to thermal power and can be used to generate electrical energy in the process of transportation in the pipes of various fluids, in particular to protect the pipeline from electrochemical corrosion or electric gate valves. Thermoelectric generator contains a section of the pipeline, on which circumferential thermoelectric sections are located along its entire length, a cylindrical casing consisting of two semi-cylindrical housings equipped with longitudinal flanges made of hydro-resistant material covering the pipeline section, creating a gap between the inner surface of the casing and the outer surface of the pipeline, along the entire length of the pipeline section there are zigzag rows consisting of arranged in sequence and interconnected thermal emission converters consisting of a pair of segments made of different metals M1 and M2, the ends of which are flattened, interconnected with the formation of junctions and are located near the heating zone near the surface of the pipeline and in the cooling zone near the environment, accordingly, the free ends of the zigzag rows in the cold zone are interconnected by bridges and capacitors, forming thermoelectric sections, also interconnected, forming a thermoelectric unit equipped with current leads with like charges, the thermoelectric sections are made circumferential, the thermoelectric unit is located in the gap between the inner surface of the casing and the outer surface of the pipeline section, each section consists of several circumferential parallel rows made up of thermionic converters, the upper and lower junctions of which are longitudinally interconnected and clamped by two paired upper and lower longitudinal strips covered with a layer of dielectric material, and the tight contact of the ends of the junctions is provided by compressing two semi-cylindrical casings.

EFFECT: increased reliability and efficiency of the thermoelectric generator.

1 cl, 6 dwg