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Integrated shielding material composite structure

A technology of shielding materials and composite structures, which is applied in shielding, reactors, nuclear engineering, etc., to achieve the effects of easy production and installation, low cost, and on-site construction conditions

Inactive Publication Date: 2019-07-09
NUCLEAR POWER INSTITUTE OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This brings unbearable difficulty to the installation and load bearing of the structure

Method used

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  • Integrated shielding material composite structure
  • Integrated shielding material composite structure
  • Integrated shielding material composite structure

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Embodiment 1

[0023] In one application, the shielding structure needs to be responsible for attenuating the flow of radiated neutrons and photons from one side of it. According to theoretical analysis, it is known that the dose rate of the exit surface of the shielding structure is mainly caused by the incident fast neutrons, so the optimal shielding scheme obtained from the shielding optimization analysis is to use iron ( image 3 gray blocks shown) and polyethylene ( image 3 Shown as white blocks) are layered to shield incident particles.

[0024] The integrated shielding material composite structure in this embodiment includes several "layers" arranged inside and outside, and each "layer" includes several "Z"-shaped turning bodies, and installations are installed between adjacent turning bodies of each "layer". gap. Each block of shielding material adopts two shielding materials of iron and polyethylene. Specifically, for each turning body, the optimal spatial distribution scheme is...

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Abstract

The invention belongs to the technical field of radiation protection design, and particularly relates to an integrated shielding material composite structure. The integrated shielding material composite structure comprises a plurality of layers arranged inside and outside, each layer comprises a plurality of turning bodies composed of shielding material blocks, an installation gap is formed between every two adjacent turning bodies of each layer, and each shielding material block is made of a plurality of types of shielding materials. The composite structure is convenient to produce and install, can meet the performance requirements of the shielding structure in the aspects of temperature resistance, mechanics and the like, has the advantages of mechanical properties, welding properties, shielding properties and the like, can conveniently achieve the purposes of small size, light weight, low manufacturing cost and long service life, and has potential engineering value and economic value.

Description

technical field [0001] The invention belongs to the technical field of radiation protection design, and in particular relates to an integrated shielding material composite structure. Background technique [0002] In the field of radiation protection design technology, in order to achieve the expected shielding effect with smaller volume and lighter weight, different types of shielding materials are often required to block the flow of radiation particles in an alternate arrangement. In practical applications, in addition to the heat resistance and load-bearing performance of the shielding structure, the difficulty of construction and installation also needs to be considered. Therefore, it is difficult to design the actual shielding structure based on the optimal structure obtained from theoretical analysis, resulting in the failure to achieve the ultimate radiation shielding. optimization. Specifically, the shielding structures in the prior art all use homogeneous materials ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F1/12G21F1/08G21F1/10
CPCG21F1/12G21F1/08G21F1/10
Inventor 吕焕文唐松乾肖锋谭怡景福庭应栋川邓理邻李兰刘嘉嘉张宏越
Owner NUCLEAR POWER INSTITUTE OF CHINA
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