CN109994225B - Tube bundle type shielding structure - Google Patents
Tube bundle type shielding structure Download PDFInfo
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- CN109994225B CN109994225B CN201711468491.2A CN201711468491A CN109994225B CN 109994225 B CN109994225 B CN 109994225B CN 201711468491 A CN201711468491 A CN 201711468491A CN 109994225 B CN109994225 B CN 109994225B
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- shielding
- tube bundle
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21C—NUCLEAR REACTORS
- G21C11/00—Shielding structurally associated with the reactor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Building Environments (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
Abstract
The invention belongs to the technical field of nuclear reactor shielding design, and particularly relates to a tube bundle type shielding structure. The tube bundle type shielding structure comprises shielding tubes and shielding tube shaping equipment, wherein shielding materials are packaged in the shielding tubes, and the shielding tube shaping equipment is used for shaping a plurality of shielding tubes. The mechanical property of the shielding material is improved by the shielding tube bundle, and the shielding material is encapsulated. The shielding materials such as boron carbide powder and the like can be normally used, and the integrity of the shielding structure can be ensured without leakage even if the shielding materials such as polyethylene, lead and the like are melted. Because the shielding material is in a tube bundle shape, the shielding material can be conveniently arranged in the shielding structure on a construction site, or the shielding structure can be directly shaped according to the requirement, thereby providing favorable conditions for the rapid installation of the shielding structure on the site.
Description
Technical Field
The invention belongs to the technical field of nuclear reactor shielding design, and particularly relates to a tube bundle type shielding structure.
Background
During normal operation of the reactor, a large amount of neutrons and gamma rays are released due to fission reaction and activation of partial structural materials, and the excessive neutrons and gamma rays can cause harm to human bodies and need to be effectively shielded. Shielding materials such as boron carbide, lead, and polyethylene have a good shielding effect against neutrons and gamma rays, but their physical properties greatly restrict the widespread use of these shielding materials.
Therefore, it is necessary to research a shielding structure for encapsulating the shielding material to provide the shielding material with good structural characteristics and be suitable for quick installation in a construction site.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: a tube bundle type shielding structure is provided for packaging shielding materials, so that the shielding materials have good structural characteristics and are suitable for quick installation on a construction site.
The technical scheme of the invention is as follows:
a tube bundle type shielding structure comprises shielding tubes and shielding tube shaping equipment, wherein shielding materials are packaged in the shielding tubes, and the shielding tube shaping equipment is used for shaping a plurality of shielding tubes.
As a preferable scheme: the shielding tube is in a closed hollow cladding structure.
As a preferable scheme: a single type of shielding material is packaged in each shielding pipe, and the shielding materials packaged in different shielding pipes are the same or different.
As a preferable scheme: the shielding material is in a powder or pellet shape.
As a preferable scheme: the shielding pipe shaping equipment is of a strip structure or a hollow shell structure and is used for shaping a shielding pipe bundle formed by a plurality of shielding pipes.
As a preferable scheme: the shielding pipe shaping equipment is of a frame type structure.
As a preferable scheme: the shielding pipes are arranged in layers according to different types of shielding materials packaged inside and are shielded inside the equipment in a frame type structure.
The beneficial effects of the invention are as follows:
the invention seals different kinds of shielding materials into the shielding tube bundle in advance by a prefabricating method, improves the mechanical property of the shielding materials by the shielding tube bundle, and simultaneously seals the shielding materials. The shielding materials such as boron carbide powder and the like can be normally used, and even if the shielding materials such as polyethylene and lead are melted, the shielding materials cannot leak, so that the integrity of the shielding structure is ensured. Because the shielding material is in a tube bundle shape, the shielding material can be conveniently arranged in the shielding structure on a construction site, or the shielding structure can be directly shaped according to the requirement, thereby providing favorable conditions for the rapid installation of the shielding structure on the site. The characteristic that the tubular shielding material can be installed fast is also favorable to changing at any time according to the demand of shielding design, or carries out the layering arrangement according to the characteristic of required shielding particle, ensures to have best shielding effect, has potential economic value.
Drawings
FIG. 1 is a schematic view of a shielding tube;
FIG. 2 is a schematic view of a tube bundle type shielding structure in embodiment 1;
fig. 3 is a schematic view of a tube bundle type shielding structure in embodiment 2.
In the figure, 1-shield tube shaping equipment, 2-cladding, 3-shield material.
Detailed Description
The tube bundle shielding structure of the present invention is described in detail below with reference to the accompanying drawings and examples.
The tube bundle type shielding structure comprises shielding tubes and shielding tube shaping equipment 1, wherein shielding materials 3 are encapsulated in the shielding tubes, and the shielding tube shaping equipment 1 shapes a plurality of shielding tubes.
Example 1
As shown in fig. 1, the shielding tube in the present embodiment is a closed hollow envelope 2 structure, which encloses a shielding material 3 inside, and which may have an external shape, for example, a cylindrical shape, as the case may be. The structural characteristics of the shielding tube enhance the mechanical properties of the shielding materials 3, and meanwhile, the shielding materials 3 are encapsulated, so that the shielding materials 3 are prevented from being leaked after being melted at high temperature or collided.
In a construction site, the shielding tube bundle formed by a plurality of shielding tubes is shaped by using the shielding tube shaping equipment 1 with a strip structure such as a strip and a buckle belt shown in fig. 2, so that the shielding tube bundle can meet the shielding performance requirement of each shielding structure.
In this embodiment, the shielding material 3 may be a powder structure or a pellet structure, such as boron carbide powder, boron carbide sintered powder, lead, polyethylene, and the like.
In the embodiment, one shielding material 3 is encapsulated in each shielding tube, and the types of the shielding materials 3 encapsulated in different shielding tubes can be different.
Example 2
This example differs from example 1 in that: the shield pipe shaping apparatus 1 employed in the present embodiment has a frame-like structure, for example, a hollow rectangular parallelepiped structure as shown in fig. 3.
In the shield tube shaping apparatus 1, several shield tubes may be arranged in layers according to the kind of the shield material 3 enclosed inside to achieve an optimal shield effect for some particles. As shown in fig. 3, the shield pipe placed at the lower part of the shield pipe shaping apparatus 1 is different from the shield material 3 kinds enclosed inside the shield pipe placed at the upper part.
Example 3
In the tube bundle type shielding structure in the embodiment, the shielding material 3 is filled into the tube bundle, and then the tube bundle is integrated to form a specific shielding structure, and the specific implementation manner of the invention is as follows: designing a shielding tube bundle according to the shielding performance requirement and the mechanical performance requirement of the shielding structure; manufacturing a shielding tube bundle in advance in a processing plant, filling a shielding material 3 according to requirements, and sealing the shielding tube bundle; filling a prefabricated shielding tube bundle into a shielding structure, or restraining the shielding tube bundle by using a strip, a buckle belt and the like to form the shielding structure with a specific function; the tube bundle in the shielding structure can be taken out for other shielding structures or the tube bundle in the shielding structure can be adjusted according to the requirements of shielding design.
Claims (6)
1. A tube bundle shielding structure, comprising a shielding tube and a shielding tube shaping apparatus (1), characterized in that: the shielding material (3) is encapsulated in the shielding pipes, and the shielding pipe shaping equipment (1) shapes a plurality of shielding pipes;
the shielding tube shaping equipment (1) is of a strip structure or a hollow shell structure and is used for shaping a shielding tube bundle formed by a plurality of shielding tubes.
2. The tube bundle shielding structure of claim 1, wherein: the shielding tube is in a closed hollow cladding (2) structure.
3. The tube bundle shielding structure according to claim 1 or 2, characterized in that: a single type of shielding material (3) is packaged in each shielding tube, and the shielding materials (3) packaged in different shielding tubes are the same or different.
4. The tube bundle shielding structure according to claim 1 or 2, wherein: the shielding material (3) is in a powder or core block shape.
5. The tube bundle shielding structure of claim 1, wherein: the shielding pipe shaping equipment (1) is of a frame type structure.
6. The tube bundle shielding structure of claim 5, wherein: a plurality of shielding pipes are arranged in layers inside the frame type structure shielding pipe shaping equipment (1) according to different types of shielding materials (3) packaged inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711468491.2A CN109994225B (en) | 2017-12-29 | 2017-12-29 | Tube bundle type shielding structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711468491.2A CN109994225B (en) | 2017-12-29 | 2017-12-29 | Tube bundle type shielding structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109994225A CN109994225A (en) | 2019-07-09 |
| CN109994225B true CN109994225B (en) | 2023-01-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711468491.2A Active CN109994225B (en) | 2017-12-29 | 2017-12-29 | Tube bundle type shielding structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109994225B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3056028A (en) * | 1960-05-03 | 1962-09-25 | James T Mattingly | Neutron shielding structure |
| JPS5367090A (en) * | 1976-11-26 | 1978-06-15 | Toshiba Corp | Atomic fuel aggregation |
| CN201237917Y (en) * | 2008-08-06 | 2009-05-13 | 中国原子能科学研究院 | Heat shield |
| CN204516367U (en) * | 2015-04-03 | 2015-07-29 | 中国人民大学 | The monochromator shielding device of cold neutron spectrometer |
| CN105223625A (en) * | 2015-11-06 | 2016-01-06 | 同方威视技术股份有限公司 | Beam guiding device and comprise the radiation examination device of this beam guiding device |
| CN106855538A (en) * | 2015-12-09 | 2017-06-16 | 核动力运行研究所 | A kind of reactor control rod tread assembly ultrasonic examination detecting structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1989002153A1 (en) * | 1987-09-02 | 1989-03-09 | Chem-Nuclear Systems, Inc. | Ductile iron cask with encapsulated uranium, tungsten or other dense metal shielding |
| JPS6463892A (en) * | 1987-09-03 | 1989-03-09 | Mitsubishi Atomic Power Ind | Neutron shielding plate |
| US7139352B2 (en) * | 1999-12-28 | 2006-11-21 | Kabushiki Kaisha Toshiba | Reactivity control rod for core |
| JP5843492B2 (en) * | 2011-06-17 | 2016-01-13 | 三菱重工業株式会社 | Radiation shielding method and structure processing method |
| CN104778986B (en) * | 2015-04-03 | 2017-03-01 | 中国人民大学 | A kind of monochromator shielding device of cold neutrons spectrometer |
-
2017
- 2017-12-29 CN CN201711468491.2A patent/CN109994225B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3056028A (en) * | 1960-05-03 | 1962-09-25 | James T Mattingly | Neutron shielding structure |
| JPS5367090A (en) * | 1976-11-26 | 1978-06-15 | Toshiba Corp | Atomic fuel aggregation |
| CN201237917Y (en) * | 2008-08-06 | 2009-05-13 | 中国原子能科学研究院 | Heat shield |
| CN204516367U (en) * | 2015-04-03 | 2015-07-29 | 中国人民大学 | The monochromator shielding device of cold neutron spectrometer |
| CN105223625A (en) * | 2015-11-06 | 2016-01-06 | 同方威视技术股份有限公司 | Beam guiding device and comprise the radiation examination device of this beam guiding device |
| CN106855538A (en) * | 2015-12-09 | 2017-06-16 | 核动力运行研究所 | A kind of reactor control rod tread assembly ultrasonic examination detecting structure |
Non-Patent Citations (3)
| Title |
|---|
| Effects of Source and Geometry Modeling on the Shielding Calculations for a Spent Nuclear Fuel Dry Storage Cask;Y.F.Chen 等;《Nuclear Technology》;20130531;224-234 * |
| 核电厂用机器人应用现状与性能分析;刘呈则 等;《核安全》;20121231(第4期);72-76 * |
| 离散纵标与蒙特卡罗耦合方法在反应堆屏蔽计算中的应用;肖锋 等;《核动力工程》;20141031;第35卷(第5期);9-12 * |
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| CN109994225A (en) | 2019-07-09 |
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