SU1325572A1 - Radioisotopic thermoelectric generator - Google Patents

Abstract

The invention relates to radioisotope thermoelectric generators designed to provide direct current power to autonomous equipment, for example, weather stations. Makov The aim of the invention is to increase reliability and efficiency, as well as to simplify the design and assembly technology of the generator. This goal is achieved by the fact that. A thermoelectric converter (TP) 1 is installed in a rigid thin-walled glass 2, which is the central part of the partition wall 3, which divides the internal cavity of the generator into two hermetic chambers. TP 1 is in mechanical contact with the bottom of a thin-walled glass 2, on the outside of which radiation protection 4 is firmly and cantileverly attached, having a hatch and a removable cover 6 for installing a radionuclide source-:

Description

1325572

Heat 5. The main part of heat, heat 2 to TP 1, and then-discharged in source 5, enters the environment, 2 epfl through radiation protection of the bottom of 1 silt.

one

The invention relates to a device for generating electrical energy by converting thermal energy into electrical energy, namely, radioisotope thermoelectric KIM generators designed for the use of dc power by autonomous equipment of autonomous equipment, for example, meteorological stations, macs.

The aim of the invention is to increase the reliability and efficiency of the RTG, as well as to simplify the design and technology of the generator assembly.

The drawing shows the structural scheme of the RTG.

The device consists of a thermoelectric converter 1, which, with a small radial clearance, is installed in a rigid glass 2, which is the central part of a sealed partition wall 3, which divides the internal cavity of the device into two hermetic chambers. Radiation protection-4 with a radionuclide heat source 5 (RJ) enclosed in it is rigidly and console attached to the bottom of the glass 2, on its outer side. The radiation protection end 4 is in thermal contact with the bottom of the glass 2. The radiation protection 4 has a hatch with a removable cover 6 for installing the RHS from the side opposite the bottom of the glass 2, for which the removable bottom book 7 and the heat insulation cap 8 are removed. - KI instead of RHS 5 is installed electric heater. Thermoelectric converter 1 has a flexible heat transfer 9 with springs, providing reliable thermal and mechanical contacts of thermoelectric converter I with the bottom of the glass 2 and heat conducting cover 10, which, in turn, is in thermal contact with the radiator 11. Flange of the separation partition 3 has channels for pumping a thermoelectric transformer chamber 1 and for laying the leads to a hermetic electrical connector. Sealing partition 3 is sealed by sealing rings 12. Thermal insulation 8 is used to reduce heat leaks and increase the efficiency of the device, and the shell 2 of the cup is made of thin-walled Of low thermal conductivity alloy

The device works as follows.

Most of the heat generated in RI7. 5 as a result of radioactive decay, flows through the radiation shielding 4 and the bottom of the glass 2 to the thermoelectric converter 1, where a smaller part is converted into direct current electric power. Heat, not converted to electricity, through the heat-conducting element 10 is supplied to the radiator plate 11 and is discharged into the environment.

Claims (1)

Invention Formula I. Radioisotope thermoelectric generator (RTG) containing a sealed enclosure with a heat removal system, the internal cavity of which is divided into two chambers by a thin-walled partition, a thermoelectric converter placed in the internal cavity of one of the chambers and in thermal and mechanical contact with a sealed partition, pa - a deunuklide heat source surrounded by radiation shielding and heat insulation placed in another chamber, characterized in that, in order to simplify the design, and increase; RTNT by reducing the heat loss, the hermetic partition is made in the form of a rigid glass with a flange not less than the thickness of the thermal insulation in the direction radial relative to the longitudinal axis of the RTG, hermetically connected to the RTG body along its outer .313255724 diameter, and to the bottom of the glass, with his3. The generator according to claim 1, about the first and the second side, is attached to the radio and with the fact that, in order to simplify protection of loading in the RTG, the radionuclide is 2. The generator according to claim 1, about t l and h a-th heat source, in radiation u u and with the fact that, in order to reduce the protection from the opposite side thermal resistance between the bottom of the cup, in the heat insulation and the bottom do radiation protection and thermoelectric bottom of the RTG, coaxially with its longitudinal removable elements are formed by the tric-tic converter, butt-end axle, The radiation protection surface of which you have a diameter in the transverse direction in the form of the bottom of the specified stack is more than the diameter of the radionuclide source of heat.