Reactor core structure of heat pipe reactor fuel element adopting hexagonal prism cladding

Abstract

The invention belongs to the technical field of nuclear fuel elements, and particularly relates to a reactor core structure of a heat pipe reactor fuel element adopting hexagonal prism cladding. The reactor core structure comprises fuel elements 1, heat pipes 2, a limiting base body 3, a cylinder container 4 and a reactor core upper grid plate 5, wherein the fuel elements 1 and the heat pipes 2 are arranged in the cylinder container 4 in a honeycomb shape, the limiting base body 3 is arranged between the arrangement of the fuel elements 1 and the heat pipes 2 and the inner wall of the cylindercontainer 4, and the reactor core upper grid plate 5 is arranged on the cylinder container 4.

Description

technical field [0001] The invention belongs to the technical field of nuclear fuel elements, and in particular relates to a core structure of a heat pipe reactor fuel element using a hexagonal prism cladding. Background technique [0002] The heat pipe is a high-efficiency heat-conducting element with small size and high reliability. The use of heat pipes in the reactor to conduct heat can avoid the large-scale loop structure in the original reactor, avoid the use of high-power mechanical pumps and other equipment, and greatly simplify the original reactor system. Except that the working medium inside the heat pipe is a gas-liquid two-phase medium, the whole core material is a solid structure, which reduces the problems of chemical corrosion and flow-induced vibration. The heat pipe reactor has small core size, high inherent safety, low noise, and simple and reliable system equipment. Combined with thermocouple, thermoacoustic, thermophotovoltaic and other power generation...

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Problems solved by technology

[0005] The purpose of the present invention is to address the deficiencies of the above-mentioned prior art, to provide a core structure of a heat pipe reactor fuel element adopting a hexagonal prism cladding structure, which is used to solve the problems between the base body and the heat pipe cladding of the circular fuel cladding and heat pipe cladding in the prior art. If the gap between claddings is too large, it will easily cause excessive deformation of the reactor, which will lead to technical problems such as core function failure and heat pipe heat transfer failure.

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