Efficient heat-conducting heat pipe reactor fuel element

A fuel element and reactor technology, which is applied in reactor-related fields, can solve the problems of unfavorable reactor small and lightweight design, reduction of nuclear fuel share, low thermal conductivity, etc.

Active Publication Date: 2021-07-16
安徽中科超核科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The heat pipe reactor is currently a reactor with good prospects for space nuclear power applications. The passive heat conduction of nuclear fuel with heat pipes is a hot spot in foreign space nuclear power research. The existing nuclear fuel is UO 2 Mainly, the thermal conductivity is low, which is the bottleneck restricting the increase of power density and the reduction of volume and weight of the reactor. The share of nuclear fuel is reduced, which is not conducive to the small and lightweight design of the reactor

Method used

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  • Efficient heat-conducting heat pipe reactor fuel element
  • Efficient heat-conducting heat pipe reactor fuel element
  • Efficient heat-conducting heat pipe reactor fuel element

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Embodiment 1

[0030] Such as Figure 1-Figure 3 As shown, a high-efficiency heat-conducting heat pipe reactor fuel element in this embodiment includes a nuclear fuel 401, a cladding tube 400, a heat pipe 402, and a heat-conducting ring 403. The cladding tube 400 includes a sleeved inner wall 405 and an outer wall 404, so The heat pipe 402 is placed in the inner hole of the inner wall 405, the heat conduction ring 403 is sleeved outside the heat pipe 402 and is located between the heat pipe 402 and the inner wall 405; the inner wall 405 of the cladding tube 400 A number of axial heat conduction plates 407 and a number of radial heat conduction plates 406 are provided between the outer wall 404, and the axial guide plates 407 and radial guide plates 406 divide the cladding tube 400 into several for filling the nuclear fuel In the fuel area of ​​401 , the axial guide plate 407 is provided with a stress relief groove 408 .

[0031] In the high-efficiency heat-conducting heat pipe reactor fuel ...

Embodiment 2

[0033] Such as Figure 1-Figure 3 As shown, a high-efficiency heat-conducting heat pipe reactor fuel element in this embodiment includes a nuclear fuel 401, a cladding tube 400, a heat pipe 402, and a heat-conducting ring 403. The cladding tube 400 includes a sleeved inner wall 405 and an outer wall 404, so The heat pipe 402 is placed in the inner hole of the inner wall 405, the heat conduction ring 403 is sleeved outside the heat pipe 402 and is located between the heat pipe 402 and the inner wall 405; the inner wall 405 of the cladding tube 400 A number of axial heat conduction plates 407 and a number of radial heat conduction plates 406 are provided between the outer wall 404, and the axial guide plates 407 and radial guide plates 406 divide the cladding tube 400 into several for filling the nuclear fuel In the fuel area of ​​401 , the axial guide plate 407 is provided with a stress relief groove 408 .

[0034] Such as image 3 As shown, the stress relief groove 408 in th...

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Abstract

The invention relates to an efficient heat-conducting heat pipe reactor fuel element. The fuel element comprises a nuclear fuel, a cladding pipe, a heat pipe and a heat conduction ring. The cladding pipe comprises an inner wall and an outer wall which are arranged in a sleeved manner, the heat pipe is arranged in an inner hole of the inner wall, and the heat conduction ring sleeves the heat pipe and is located between the heat pipe and the inner wall. A plurality of axial heat conduction plates and a plurality of radial heat conduction plates are arranged between the inner wall and the outer wall of the cladding pipe, the cladding pipe is divided into a plurality of fuel areas used for being filled with the nuclear fuel by the axial guide plates and the radial guide plates, and stress release grooves are formed in the axial guide plates. According to the efficient heat-conducting heat pipe reactor fuel element, the nuclear fuel is arranged in the cladding pipe, and nuclear heat generated by operation is transferred to the heat pipe through the wall of the cladding pipe; the axial and radial heat conduction plates are arranged in the cladding pipe and are used for assisting efficient heat conduction; the heat pipe is arranged in the center of the fuel element and is used for guiding heat of a reactor core out of the reactor; and the heat conduction ring is arranged between the heat pipe and the cladding pipe, and contact heat transfer between the heat pipe and the cladding pipe is achieved.

Description

technical field [0001] The invention relates to the technical field related to reactors, in particular to a high-efficiency heat conduction heat pipe reactor fuel element. Background technique [0002] The heat pipe reactor is currently a reactor with good prospects for space nuclear power applications. The passive heat conduction of nuclear fuel with heat pipes is a hot spot in foreign space nuclear power research. The existing nuclear fuel is UO 2 Mainly, the thermal conductivity is low, which is the bottleneck restricting the increase of power density and the reduction of volume and weight of the reactor. The share of nuclear fuel is reduced, which is not conducive to the small and lightweight design of the reactor. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a high-efficiency heat-conducting heat pipe reactor fuel element for the deficiencies of the prior art. [0004] The technical solution of the pres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21C3/08G21C3/06
CPCG21C3/08G21C3/06Y02E30/30
Inventor 不公告发明人
Owner 安徽中科超核科技有限公司
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