Thermoelectric nuclear battery based on double-layer structure
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A double-layer structure, nuclear battery technology, applied in the direction of electrical components, generators/motors, etc., can solve the problems of difficulty in laying temperature difference materials for thermonuclear batteries, low utilization rate of heat sources, etc., to reduce the risk of leakage, high utilization rate of heat sources, long life effect
Inactive Publication Date: 2013-08-28
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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[0006] The invention provides a thermonuclear battery based on a double-layer structure. In order to solve the problems of difficulty in laying the temperature difference material of the thermonuclear battery and low utilization rate of the heat source, a double-layer structure is adopted, and a laying method of the temperature difference material is designed, which can comprehensively Improve the heat source utilization rate, output performance and utilization value of the battery
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Embodiment 1
[0037] (1) Seal the radioactive isotope 238Pu directly into the radioactive source box. The radioactive source box is made of aluminum material and made into a hexahedron shape with a height of 100mm and a square bottom with a side length of 60mm;
[0038] (2) On each side of the four rings of the radioactive source box made of aluminum, two grooves with a side length of 30mm, a square shape, and a depth of 4mm are cut, arranged vertically and parallelly in the center along the height direction, and there are 8 grooves in total. groove;
[0039] (3) Put the formed square sheet-shaped temperature difference material in the excavated groove, the bottom surface of which is a square with a side length of 30mm and a thickness of 4mm, and connect each piece of temperature difference material in series;
[0040] (4) Put the radioactive source box into the casing. The casing is made of wood, hexahedron-shaped, 200mm high, and the bottom is a square with a side length of 100mm. the sq...
Embodiment 2
[0046] This embodiment is the same as Embodiment 1 except for the following differences.
[0047] (1) The radioactive isotope 238Pu is directly sealed into the radioactive source box. The radioactive source box is made of copper material and made into a hexagonal prism with a height of 100mm and a regular hexagon with a side length of 46mm on the bottom surface;
[0048] (2) On each side of the six rings of the radioactive source box made of aluminum materials, two grooves with a side length of 30mm, a square shape, and a depth of 4mm are cut, arranged vertically and parallelly in the center along the height direction, and there are 12 grooves in total. groove;
[0049] (4) Put the radioactive source box into the casing. The casing is made of ceramic material, hexagonal column-shaped, 200mm high, the bottom surface is a regular hexagon with a side length of 54mm, and the inside is hollow and cylindrical, with a depth of 160mm and a diameter of 96mm;
[0050] (5) Dig two groov...
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Abstract
The invention discloses a thermoelectric nuclear battery based on a double-layer structure. The thermoelectric nuclear battery comprises a radiation source, a radioactive source box, an outer shell, thermoelectric materials, grooves, a sealing cover and a heat dissipating device. The grooves are formed in the outer side of the radioactive source box and in the outer side of the outer shell, the thermoelectric materials are arranged in the grooves, the radiation source is filled in the radioactive source box, the radioactive source box is arranged in the outer shell in a sleeved mode, the sealing cover is additionally arranged on the top of the battery, and the heat dissipating device is arranged on the outer side of the battery, and accordingly a sealed whole is formed. The radiation source, the radioactive source box, the thermoelectric materials and the grooves form an internal structure. The outer shell, the thermoelectric materials, the grooves, the sealing cover and the heat dissipating device form an external structure. A heat source is fully used by means of gradient temperature differences of external low-temperature environment or natural low-temperature environment, and the temperature differences are between the radioactive source box and the outer shell and caused by the outer shell and the heat dissipating device. The thermoelectric nuclear battery has the advantages of being long in service life, high in heat source utilization rate, safe to use and the like. The utilization rate of decay particles of the radiation source is high, so that the thermoelectric nuclear battery can be used for directly converting radioactive energy into electricity.
Description
technical field [0001] The invention relates to a thermoelectric nuclear battery based on a double-layer structure, which can be used to convert the decay energy of radioactive isotopes into electric energy, and belongs to the field of nuclear energy application and thermoelectric conversion. Background technique [0002] In 1954, Mound Laboratories of the United States developed the first thermoelectric generator SNAP-3 using radioactive isotopes as heat sources. In 1956, the United States proposed the nuclear auxiliary energy system plan and carried out various research and development of thermoelectric nuclear batteries. Due to the low power generation efficiency of various thermoelectric generators and extremely low power generation, it will be of profound significance to develop a thermoelectric generator with higher efficiency. At the same time, based on the advantages of radioisotope thermoelectric generators in various aspects , Improving the efficiency and power of ...
Claims
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