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Modular shielding method for building beam shielded enclosure and structure thereof

A radiation shielding and modular structure technology, which is applied in the field of radiation protection, can solve the problems of troublesome reconstruction of shielding rooms, difficulty in installing large structural parts, and the thickness of shielding materials cannot meet the requirements of radiation protection, so as to meet the requirements of lower installation conditions and facilitate reconstruction work , the effect of saving money

Active Publication Date: 2008-06-18
NUCTECH CO LTD
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AI Technical Summary

Problems solved by technology

Once the conditions of the source term change, the thickness of the shielding material cannot meet the needs of radiation protection, and the reconstruction of the shielding room is very troublesome;
[0008] ②Due to the limitation of construction conditions, some shielding room construction sites cannot use large-scale hoisting equipment, and the installation of large-scale structural parts is very difficult

Method used

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  • Modular shielding method for building beam shielded enclosure and structure thereof
  • Modular shielding method for building beam shielded enclosure and structure thereof
  • Modular shielding method for building beam shielded enclosure and structure thereof

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Embodiment Construction

[0028] see figure 1 figure 2 , The shielding body of the present invention is a modular structure of cavity columns of various shapes made of steel, and the shape of the columns is stepped, rectangular with dovetail grooves or other arbitrary shapes. The lap joints of the columns are embedded to prevent rays from directly exiting the joints. Each column is filled with shielding material, and the shielding material can be any one of lead sand, iron sand, sand, gravel, polyethylene powder or a mixture of the above-mentioned multiple materials.

[0029] When the present invention is used, the installation is arranged as image 3 , Figure 4 The shielded room shown. The source item index of the shielded room is: 9MeV accelerator with an output of 3000rad / min-m. The material filled in the shielding body is sand. The specific method steps are:

[0030] First of all, according to the requirements of the drawing, design multiple shielding bodies with different shapes and cavit...

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Abstract

The invention relates to a module shielding method and a structure thereof used for constructing a radial shield room, relating to a radioprotection technique of nuclear technique application field. The structure of the invention is a hollow vertical column module structure with various shapes which is made of steel materials. Joints between vertical columns are embedded mutually to keep radials from shooting out directly from seams. And shielding materials are filled in the vertical columns. Compared with the prior art, the invention has simple installation and low requirement to site installation conditions, and can conveniently and quickly complete construction and reconstruction of the shield room according to the change of source conditions; thus the invention has good economic performance.

Description

technical field [0001] The invention relates to radiation protection technology in the application field of nuclear technology, in particular to a modular shielding method and structure for building a radiation shielding room. Background technique [0002] In the field of nuclear technology application, the conventional method steps of building a radiation shielding room are: [0003] ① Determine the structure of the shielding room through the design of the building structure; [0004] ②Through the radiation protection design, determine the shielding material and thickness requirements selected under the source item conditions required by the design; [0005] ③ The construction unit completes the construction of the shielding room according to the design drawings. If the shielding material is cement, it is usually cast on site or assembled with prefabricated cement boards. If the shielding material is lead or steel, it generally needs to be processed into large structural...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F7/00G21F1/00G21F1/02
Inventor 王利明邓艳丽王兵明申金曹艳锋侯立娜刘星李鹏宇
Owner NUCTECH CO LTD
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