CN111462932A - Self-adaptive keel type lead-free shielding device special for glove box pipeline shielding - Google Patents
Self-adaptive keel type lead-free shielding device special for glove box pipeline shielding Download PDFInfo
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- CN111462932A CN111462932A CN202010200907.8A CN202010200907A CN111462932A CN 111462932 A CN111462932 A CN 111462932A CN 202010200907 A CN202010200907 A CN 202010200907A CN 111462932 A CN111462932 A CN 111462932A
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- Prior art keywords
- shielding
- glove box
- framework
- pipeline
- free
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- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F3/00—Shielding characterised by its physical form, e.g. granules, or shape of the material
-
- G—PHYSICS
- G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
- G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
- G21F7/00—Shielded cells or rooms
- G21F7/04—Shielded glove-boxes
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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)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Manipulator (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
Abstract
The invention provides a self-adaptive keel type lead-free shielding device special for glove box pipeline shielding, which comprises a glove box pipeline, and the lead-free shielding device also comprises: the framework is provided with a cavity for the glove box pipeline to pass through; the flexible shielding layer is matched with the shape of the framework, and the flexible shielding layer is arranged on the inner end face of the framework; the self-adaptive keel type lead-free shielding device in the scheme has the advantages that the keel type cylindrical thin framework and the flexible shielding layer are adopted, so that the installation can be conveniently and quickly carried out through the framework when the glove pipeline is installed, and the radiation exposure dose of radiation protection personnel during installation can be reduced; meanwhile, the shielding protection of an operator is realized through the flexible shielding layer on the inner end face of the framework, and the irradiated dose of an operator of the glove box during operation is reduced.
Description
Technical Field
The invention relates to the technical field of radiation protection, in particular to a self-adaptive keel type lead-free shielding device special for glove box pipeline shielding.
Background
Liquid and gas are required to be sampled in a centralized manner by using a glove box in a nuclear power plant, so that laboratory analysis or online radiochemical analysis is performed on the sample, and the safety inspection work of a system in the nuclear power plant is indirectly realized. The glove box is generally provided with a pair of hoses for both hands of the operation box to be inserted into the operation box, and the pair of hoses is arranged at the position of the glass panel of the glove box. The sample collected in the glove box comprises high-level radioactive waste liquid, low-level radioactive waste liquid, non-radioactive liquid, radioactive gas and the like, and the sample collecting pipeline in the glove box has strong radioactivity. When the worker operates, the chest is almost close to the glass, the single sample operation time is about 2 minutes, the worker needs to sample the glass every day, the contact dose rate of the pipeline on the outer side of the glass is about 200 mu Sv/h, 10 samples are taken every day for accounting, and the exposure dose of the single-station worker is about 70 mu Sv; it needs to be effectively shielded to achieve optimal management of the on-site collective dose.
The glove box pipeline is complex to disassemble, and high radiation dose exists on site, so that the shielding device is required to be directly installed in a state of not disassembling the pipeline; the existing shielding device cannot be suitable for the shielding requirement of complex structure pipelines in a narrow glove box space, and a special shielding device needs to be designed.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the self-adaptive keel type lead-free shielding device special for the pipeline shielding of the glove box, which is quick and convenient to mount and dismount and can effectively realize shielding protection on an operator.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows:
an adaptive keel type lead-free shielding device dedicated to glove box pipeline shielding, the lead-free shielding device comprising a glove box pipeline, the lead-free shielding device further comprising: the framework is provided with a cavity for the glove box pipeline to pass through; and the flexible shielding layer is matched with the shape of the framework, and the flexible shielding layer is arranged on the inner end face of the framework.
Furthermore, the framework is formed by rolling and pressing a thin stainless steel spring piece.
Furthermore, a plurality of strip-shaped openings are formed in the end face of the framework at intervals.
Furthermore, the flexible shielding layer is made of a flexible shielding material with the thickness of 5 mm.
Furthermore, the flexible shielding layer is fixed on the end face of the inner wall of the framework through hot-pressing adhesion.
Furthermore, the framework is formed by splicing and connecting a plurality of independent framework structures.
The scheme has the beneficial technical effects that: the self-adaptive keel type lead-free shielding device in the scheme has the advantages that the keel type cylindrical thin framework and the flexible shielding layer are adopted, so that the installation can be conveniently and quickly carried out through the framework when the glove pipeline is installed, and the radiation exposure dose of radiation protection personnel during installation can be reduced; meanwhile, the shielding protection of an operator is realized through the flexible shielding layer on the inner end face of the framework, and the irradiated dose of an operator of the glove box during operation is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a stainless steel spring plate used for manufacturing a framework in the present invention;
FIG. 2 is a schematic view of a three-dimensional structure of a frame formed by coiling stainless steel spring plates according to the present invention;
FIG. 3 is a schematic view of the assembly of the glove box of the present invention between the lines and the framework;
fig. 4 is a schematic structural view of the adaptive keel type lead-free shielding device in the invention.
In the figure:
100-lead-free shielding device, 1-framework, 11-opening, 12-cavity, 2-glove box pipeline and 3-flexible shielding layer.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
Referring to fig. 1 to 4, in the present embodiment, an adaptive keel type lead-free shielding apparatus 100 dedicated to glove box line shielding, the lead-free shielding apparatus 100 includes a glove box line 2, a keel type cylindrical thin skeleton 1, and a flexible shielding layer 3, the skeleton 1 is formed with a cavity 12 for the glove box line 2 to pass through; the flexible shielding layer 3 is matched with the shape of the framework 1 (namely, a cylindrical shape structure is also adopted), wherein the flexible shielding layer 3 is arranged on the inner end face of the framework 1, and the protection function of the glove box operator is realized.
Referring to fig. 1 and 2, the frame 1 should have good elasticity and adaptability so as to be able to conveniently and quickly perform the installation operation on the hand casing cable. The framework 1 in the embodiment is formed by rolling and pressing an ultrathin stainless steel spring piece, and in order to further increase the elasticity and the self-adaptability of the framework 1, a plurality of strip-shaped openings 11 are arranged on the end face of the stainless steel spring piece in the embodiment at intervals along the length direction of the stainless steel spring piece, and the arrangement of the openings 11 can increase the elasticity of the stainless steel spring piece on the basis of ensuring the use strength of the stainless steel spring piece, so that the stainless steel spring piece can be conveniently rolled into a cylindrical shape structure. Referring to the attached drawing 3, during installation, the glove box pipeline 2 can be directly sleeved from one end of the framework 1 under the condition that the glove box pipeline 2 is not detached, and the framework structure at the rear end is sleeved in sequence, so that the shielding operation of the whole glove box pipeline 2 is completed. In order to better adapt to the arrangement of the glove box pipeline 2, the framework 1 in the embodiment can be formed by assembling a plurality of independent framework structures, for example, the length of a single framework 1 is 1m, and a plurality of frameworks 1 can be freely connected, so that the shielding requirements of the glove box pipeline 2 with different lengths can be met; in addition, in order to meet the protection requirements of the glove box pipeline 2 at different positions, a plurality of lead-free shielding device structures can be sleeved from inside to outside at the required places for protection, so that the lead-free shielding device structure has better adaptability.
The flexible shielding layer 3 in this embodiment is made of a flexible shielding material with a thickness of 5mm, and may be fixed to the inner end surface of the frame 1 by thermocompression bonding during installation.
When an operator in the glove box uses the device, after shielding, the dose rate level at the position of the operator is attenuated to 62.1% of that before shielding. It should be noted that the thickness of the flexible shielding material in the shielding calculation is set to be 5mm, the shielding effect of the stainless steel framework 1 on the pipeline is not considered, and the protection effect evaluation is conservative. If the framework shielding is considered, or a plurality of layers of special shielding devices are arranged on the glove box pipeline 2, the shielding effect is better than the calculation result. When using a single layer dedicated shield to shield glove box lines, a single worker is expected to save 26.53 μ Sv daily.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is intended to include such modifications and variations.
Claims (6)
1. An adaptive keel type lead-free shielding device special for glove box pipeline shielding, comprising a glove box pipeline, characterized in that the lead-free shielding device further comprises:
the framework is provided with a cavity for the glove box pipeline to pass through;
and the flexible shielding layer is matched with the shape of the framework, and the flexible shielding layer is arranged on the inner end face of the framework.
2. The adaptive keel type lead-free shielding device special for the pipeline shielding of the glove box as claimed in claim 1, wherein the framework is formed by rolling and pressing a thin stainless steel spring leaf.
3. The adaptive keel type lead-free shielding device special for the pipeline shielding of the glove box as claimed in claim 2, wherein a plurality of strip-shaped openings are formed at intervals on the end surface of the framework.
4. The adaptive keel-type lead-free shielding device special for the pipeline shielding of the glove box as claimed in claim 1, wherein the flexible shielding layer is made of flexible shielding material with the thickness of 5 mm.
5. The adaptive keel type lead-free shielding device special for the glove box pipeline shielding as claimed in claim 1 or 4, wherein the flexible shielding layer is fixed on the end face of the inner wall of the framework through thermocompression bonding.
6. The adaptive keel type lead-free shielding device special for the pipeline shielding of the glove box as claimed in claim 1, wherein the framework is formed by splicing and connecting a plurality of independent framework structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200907.8A CN111462932B (en) | 2020-03-20 | 2020-03-20 | Self-adaptive keel type lead-free shielding device special for glove box pipeline shielding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010200907.8A CN111462932B (en) | 2020-03-20 | 2020-03-20 | Self-adaptive keel type lead-free shielding device special for glove box pipeline shielding |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111462932A true CN111462932A (en) | 2020-07-28 |
| CN111462932B CN111462932B (en) | 2023-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010200907.8A Active CN111462932B (en) | 2020-03-20 | 2020-03-20 | Self-adaptive keel type lead-free shielding device special for glove box pipeline shielding |
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Citations (9)
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| US20070075277A1 (en) * | 2005-09-22 | 2007-04-05 | Smith Peter C | Lightweight radiation absorbing shield |
| JP3167330U (en) * | 2011-02-04 | 2011-04-14 | 日本タングステン株式会社 | Radiation shielding member |
| JP2012225754A (en) * | 2011-04-19 | 2012-11-15 | Alpha Giken:Kk | Shielding implement |
| KR101225241B1 (en) * | 2011-07-26 | 2013-01-22 | 함재상 | Radiation shield apparatus for x-ray photographing device |
| CN104979031A (en) * | 2014-04-02 | 2015-10-14 | 美国陶瓷技术公司 | Radiation Shield With Magnetic Properties |
| CN107919177A (en) * | 2017-10-20 | 2018-04-17 | 株洲合力电磁技术有限公司 | Radiation protection brick and preparation method thereof and radiation protection wall and its application |
| CN207947074U (en) * | 2017-05-27 | 2018-10-09 | 清华大学 | Screening arrangement |
| CN110189844A (en) * | 2019-05-15 | 2019-08-30 | 中国辐射防护研究院 | Hot spot screening arrangement is radiated at a kind of modularized combination type pipeline end cap |
| CN110570962A (en) * | 2018-03-28 | 2019-12-13 | 中国船舶重工集团公司第七一九研究所 | Local shielding structure of return bend of shielding performance adjustable |
-
2020
- 2020-03-20 CN CN202010200907.8A patent/CN111462932B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070075277A1 (en) * | 2005-09-22 | 2007-04-05 | Smith Peter C | Lightweight radiation absorbing shield |
| JP3167330U (en) * | 2011-02-04 | 2011-04-14 | 日本タングステン株式会社 | Radiation shielding member |
| JP2012225754A (en) * | 2011-04-19 | 2012-11-15 | Alpha Giken:Kk | Shielding implement |
| KR101225241B1 (en) * | 2011-07-26 | 2013-01-22 | 함재상 | Radiation shield apparatus for x-ray photographing device |
| CN104979031A (en) * | 2014-04-02 | 2015-10-14 | 美国陶瓷技术公司 | Radiation Shield With Magnetic Properties |
| CN207947074U (en) * | 2017-05-27 | 2018-10-09 | 清华大学 | Screening arrangement |
| CN107919177A (en) * | 2017-10-20 | 2018-04-17 | 株洲合力电磁技术有限公司 | Radiation protection brick and preparation method thereof and radiation protection wall and its application |
| CN110570962A (en) * | 2018-03-28 | 2019-12-13 | 中国船舶重工集团公司第七一九研究所 | Local shielding structure of return bend of shielding performance adjustable |
| CN110189844A (en) * | 2019-05-15 | 2019-08-30 | 中国辐射防护研究院 | Hot spot screening arrangement is radiated at a kind of modularized combination type pipeline end cap |
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| CN111462932B (en) | 2023-07-21 |
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