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Nodular cast iron spent fuel assembly container

A technology of nodular cast iron and spent fuel, which is applied in the field of dangerous goods transportation and storage, can solve the problems of good impact resistance, good shielding performance and lack, and achieves the effect of firm structure, good heat conduction effect and risk reduction.

Pending Publication Date: 2019-11-22
CHINA NUCLEAR POWER ENG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] There is a lack of transportation and storage containers specially suitable for the transportation and storage of spent fuel components, with good shielding performance, good impact resistance, easy operation, and meeting the requirements of national regulations and standards

Method used

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  • Nodular cast iron spent fuel assembly container
  • Nodular cast iron spent fuel assembly container
  • Nodular cast iron spent fuel assembly container

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Experimental program
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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0028] Such as figure 1 , figure 2 As shown, the present invention provides a container for spent fuel assemblies of ductile iron, which is used for storing spent fuel assemblies during transportation, and consists of a container cylinder 2 , a hanging basket 3 , a container cover 4 , and a shock absorber 1 .

[0029] Among them, the container cylinder 2 is integrally cast with nodular cast iron. The structure of the container cylinder 2 is a concentric cylinder cavity structure. There are deep blind holes arranged in multi-layer concentric circles centered on the cylinder axis in the cylinder wall of the container cylinder 2. hole 6 (see image 3 , Figure 4 ), the deep blind hole 6 is used to fill the neutron shielding material to form a neutron shielding layer; the inside of the bottom end of the container body 2 is provided with a neutron shield...

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PUM

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Abstract

The invention belongs to the field of dangerous goods transportation and storage, and particularly relates to a nodular cast iron spent fuel assembly container, which comprises a container cylinder body (2) and a container cover (4), the container cylinder body (2) is integrally cast by nodular cast iron, and neutron shielding layers are arranged in the circumferential direction and at the bottomof the container cylinder body (2); wherein the container cover (4) is connected with the container cylinder (2) through bolts, and a neutron shielding material is arranged in the container cover (4).The container barrel integrally cast by the nodular cast iron has the advantages of low cost, simple process, firm structure, no need of maintenance and good heat conduction effect. The cooling finscan more effectively dissipate heat of the spent fuel assembly in the container, and the risk that the spent fuel assembly is in a critical state is reduced.

Description

technical field [0001] The invention belongs to the field of transportation and storage of dangerous goods, and in particular relates to a container for ductile iron spent fuel assemblies. Background technique [0002] The spent fuel assemblies of nuclear power plants need to be safe during transportation and storage. Under normal conditions and accident conditions, it is necessary to ensure that the spent fuel assemblies are contained in the container, and the containment, shielding and subcritical functions of the container can be maintained and guaranteed. Therefore, in the design of the container, it is necessary to consider the selection of a suitable container structure and shock absorber structure to ensure the safety of the fuel assemblies loaded in the container when impacted, dropped or burned. [0003] In the process of realizing the above-mentioned transportation and storage of spent fuel assemblies, the inventors found at least the following problems in the prio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21F5/008G21F5/02G21F5/08G21F5/10G21F1/08G21F1/12
CPCG21F5/10G21F5/008G21F5/02G21F5/08G21F1/08G21F1/125
Inventor 李宁王庆谢亮张洪军唐兴贵王晓江姚琳卢可可郑岳山吴明盛锋王世民易璇汪俊王炳衡左树春崔岚唐兴龄郝建生李馨楠王子龄邵睿
Owner CHINA NUCLEAR POWER ENG CO LTD