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A long-distance transportable air-cooled small reactor and its safety control method

A technology of long-distance transportation and high-temperature gas-cooled reactors, which is applied in the field of nuclear engineering, can solve the problems of rapid transportation and direct transportation by helicopter, and achieve the effects of avoiding critical accidents, avoiding fires, and simplifying the processing process

Active Publication Date: 2021-11-19
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the existing technology cannot realize the rapid transport by helicopter
Because the volume of the current high-temperature gas-cooled reactor is huge, the hexahedron assembly of the existing 250 MW high-temperature gas-cooled reactor is as high as 300 cubic meters, which causes most of the existing helicopters in my country to be unable to directly transport it. Therefore, the present invention proposes a Air-cooled reactors that are small and can be transported over long distances to be able to power remote disaster-affected areas during emergencies

Method used

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  • A long-distance transportable air-cooled small reactor and its safety control method
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  • A long-distance transportable air-cooled small reactor and its safety control method

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Embodiment

[0026] This embodiment provides a long-distance transportable air-cooled small reactor, the air-cooled small reactor is a supercritical carbon dioxide high-temperature gas-cooled reactor, including several independent subcritical modules, each subcritical module includes a sealed fuel assembly, sealed The fuel assembly is loaded with fuel elements, and the fission nuclear reaction is generated in the fuel elements; the fuel element uses composite silicon carbide as the cladding, including an inner area and an outer area, the outer area surrounds the inner area, and the inner area includes fuel particles and the distribution of fuel particles area, the outer area is the composite silicon carbide cladding area; the gas-cooled small stack uses supercritical carbon dioxide as the coolant, the coolant enters from the bottom of the sealed fuel assembly, comes out from the top of the sealed fuel assembly, and the fuel element is opposed Heat transfer, and finally carbon dioxide transf...

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Abstract

The invention discloses a long-distance transportable gas-cooled small reactor and a safety control method thereof. The gas-cooled small reactor is a supercritical carbon dioxide high-temperature gas-cooled reactor, comprising several independent subcritical modules, and each subcritical module includes a sealing A fuel assembly, a fuel element is loaded in the sealed fuel assembly, and a fission nuclear reaction is generated in the fuel element; the fuel element adopts composite silicon carbide as a cladding, and the gas-cooled small reactor adopts carbon dioxide in a supercritical state as a coolant to cool The agent enters from the bottom of the sealed fuel assembly and comes out from the top, and convective heat transfer occurs with the fuel element, and finally the carbon dioxide transfers the heat to the thermoelectric conversion system, thereby realizing the conversion of thermal energy into electrical energy. The separation-assembly safety control method can effectively improve the safety of the supercritical carbon dioxide-cooled high-temperature gas-cooled reactor, and avoid the occurrence of critical accidents during transportation, so that the gas-cooled small reactor proposed by the present invention is very suitable for long-distance transportation. .

Description

technical field [0001] The invention relates to the field of nuclear engineering, in particular to a long-distance transportable air-cooled small reactor and a safety control method thereof. Background technique [0002] If earthquakes, floods, and strong winds occur in remote areas, the local power system will be paralyzed, which is not conducive to the rescue of personnel and infrastructure reconstruction in the affected areas. In order to urgently restore power in disaster-stricken areas that are not suitable for diesel engine operation (for example, facing serious situations such as flooding and insufficient oxygen in the air), it is necessary to deploy small nuclear power plants in these areas. Because the components of the high-temperature gas-cooled reactor cooled by supercritical carbon dioxide in the present invention are fully enclosed, there is no fear of flooding. Because the fission reaction does not require oxygen to participate, the lack of oxygen in the air ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21C3/07G21C15/253G21C15/28
CPCG21C3/07G21C15/253G21C15/28Y02E30/30
Inventor 李志峰蔡杰进唐智洪
Owner SOUTH CHINA UNIV OF TECH
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