Multipurpose spent fuel assembly container with multi-layer cover structure
A spent fuel, multi-purpose technology, applied in the field of storage and dangerous goods transportation, can solve the problems of good shielding performance, shortage, good impact resistance, etc., and achieve the effect of convenient and thorough vacuuming and helium backfilling
Pending Publication Date: 2019-11-12
CHINA NUCLEAR POWER ENG CO LTD
View PDF0 Cites 2 Cited by
- 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
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0027] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0028] like figure 1 , figure 2 As shown, the present invention provides a multi-purpose container for spent fuel assemblies with a multi-layer cover structure (hereinafter referred to as container), which is used for storing spent fuel assemblies during transportation. 4. The multi-layer container cover 5 is formed.
[0029] Wherein, the container cylinder 3 is sequentially composed of an inner cylinder 7, a gamma shielding layer 8, an outer cylinder 9, a first neutron shielding layer 10, and an outer shell 11 from inside to outside;
[0030] The container cylinder 3 is a concentric cylindrical cavity structure, the inner cylinder 7, the outer cylinder 9, and the outer shell 11 are made of metal materials, and the gamma shielding layer 8 is arranged in the cavity formed between the inner cylinder 7 and the outer cylinder 9 , the first neutron shiel...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention belongs to the technical field of dangerous material transportation and storage, and especially relates to a multipurpose spent fuel assembly container with a multi-layer cover structure. The multipurpose spent fuel assembly container is used for spent fuel assembly transportation or storage, and comprises a container cylinder body, a hanging basket, and a multi-layer container cover; the container cylinder body is of a multi-layer cavity structure; the hanging basket is arranged in the container cylinder body, and is used for loading spent fuel; the multi-layer container cover comprises a container inner cover and a container outer cover; the container inner cover comprises a sealed cavity formed through welding of a container inner cover unit and a container inner cover plate, and a second neutron shielding layer which is arranged in the sealed cavity; two first sealing rings are arranged between the container inner cover and the container cylinder body; a second sealing ring is arranged between the container outer cover and the container cylinder body. According to the multi-layer container cover, the separated container outer cover and container inner cover are adopted, so that container air floatation, water discharge, vacuum pumping, and helium introduction operation efficiency is increased; container opening strict sealing and radiation shielding are adopted, so that operation and storage safety is improved.
Description
technical field [0001] The invention relates to the technical field of transportation and storage of dangerous goods, in particular to a container for multi-purpose spent fuel assemblies with a multi-layer cover structure. Background technique [0002] The safety of spent fuel assemblies needs to be ensured during transportation and storage. Under normal storage and transportation conditions as well as storage and transportation accident conditions, it is necessary to ensure that the spent fuel assemblies are contained in the storage container, and the containment, shielding and subcritical functions of the container can be maintained in harmony with ensure. 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 during impact, drop, flood or fire. [0003] In the process of realizing the above-mentioned transportati...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G21F5/12G21F5/008G21F5/06G21F5/10G21F5/08G21F1/12G21C19/40
CPCG21F5/12G21F5/008G21F5/06G21F5/10G21F5/08G21F1/12G21C19/40Y02E30/30
Inventor 王庆姚琳谢亮张洪军卢可可唐兴贵王晓江李宁吴明盛锋王世民毛亚蔚易璇汪俊王炳衡左树春崔岚郑越郭利峰董安胡忠全王晰
Owner CHINA NUCLEAR POWER ENG CO LTD