CN111462932B - 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
- Publication number
- CN111462932B CN111462932B CN202010200907.8A CN202010200907A CN111462932B CN 111462932 B CN111462932 B CN 111462932B CN 202010200907 A CN202010200907 A CN 202010200907A CN 111462932 B CN111462932 B CN 111462932B
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- Prior art keywords
- framework
- shielding
- glove box
- free
- adaptive
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Classifications
-
- 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
Abstract
The invention provides a self-adaptive keel type lead-free shielding device special for shielding a glove box pipeline, which comprises the glove box pipeline, and the lead-free shielding device further comprises: a keel type barrel-shaped thin framework, wherein a cavity for the glove box pipeline to pass through is formed in the framework; the flexible shielding layer is matched with the appearance 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 can be conveniently and rapidly installed through the framework when the glove pipeline is installed by adopting the structural form of the keel type barrel type thin framework and the flexible shielding layer, so that the radiation exposure dose of radiation protection personnel is reduced; meanwhile, shielding protection to operators is realized through the flexible shielding layer on the inner end face of the framework, and the irradiated dose of glove box operators 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
The glove box is used for carrying out centralized sampling on liquid and gas in the nuclear power plant, so that laboratory analysis or online radiochemical analysis is carried out on the sample, and the safety check work of the system in the nuclear power plant is indirectly realized. Glove boxes are typically formulated with a pair of hoses for the two hands of the operator to reach into the operator, the pair of hoses glove box glass panels in place. 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 collection pipeline in the glove box has stronger radioactivity. When a person operates, the chest is almost next to glass, the time for operating a single sample is about 2 minutes, the person needs to sample the sample every day, the contact dosage rate of the pipeline on the outer side of the glass is about 200 mu Sv/h, so that 10 samples are taken every day for accounting, and the illuminated dosage of the person at a single station is about 70 mu Sv; it needs to be effectively shielded to achieve optimal management of the collective doses in the field.
Because glove box pipelines are complicated to disassemble and high radiation dose exists on site, the shielding device is required to be directly installed in a state that the pipelines are not disassembled; the existing shielding device cannot meet the shielding requirement of a complex structure pipeline in a small glove box space, and a special shielding device is required 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 glove box pipeline shielding, which is rapid and convenient to assemble and disassemble and can effectively realize shielding protection for operators.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
an adaptive keel type lead-free shielding device special for glove box pipeline shielding, the lead-free shielding device comprising a glove box pipeline, the lead-free shielding device further comprising: a keel type barrel-shaped thin framework, wherein a cavity for the glove box pipeline to pass through is formed in the framework; and the flexible shielding layer is matched with the appearance of the framework, wherein the flexible shielding layer is arranged on the inner end surface of the framework.
Further, the framework is formed by crimping and pressing thin stainless steel spring plates.
Further, a plurality of strip-shaped openings are formed in the end face of the framework at intervals.
Further, the flexible shielding layer is made of flexible shielding materials with the thickness of 5 mm.
Further, the flexible shielding layer is fixed on the end face of the inner wall of the framework through hot-press adhesion.
Furthermore, the framework is formed by splicing and connecting a plurality of independent framework structures.
The beneficial technical effect that this scheme had is: the self-adaptive keel type lead-free shielding device in the scheme can be conveniently and rapidly installed through the framework when the glove pipeline is installed by adopting the structural form of the keel type barrel type thin framework and the flexible shielding layer, so that the radiation exposure dose of radiation protection personnel is reduced; meanwhile, shielding protection to operators is realized through the flexible shielding layer on the inner end face of the framework, and the irradiated dose of glove box operators during operation is reduced.
Drawings
FIG. 1 is a schematic view of a stainless steel spring sheet for making a skeleton according to the present invention;
FIG. 2 is a schematic diagram of a skeleton made up of stainless steel spring blades in a curled configuration in accordance with the present invention;
FIG. 3 is a schematic view of the installation and assembly of the glove box pipeline and the framework of the present invention;
fig. 4 is a schematic structural view of the adaptive keel type lead-free shielding device in the invention.
In the figure:
100-leadless 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, an adaptive keel type lead-free shielding device 100 dedicated for glove box pipeline shielding in the present embodiment, the lead-free shielding device 100 including a glove box pipeline 2, a keel type barrel type thin skeleton 1, and a flexible shielding layer 3, the skeleton 1 being formed with a cavity 12 for the glove box pipeline 2 to pass through; the flexible shielding layer 3 is matched with the appearance of the framework 1 (namely, a cylindrical appearance structure is adopted as well), wherein the flexible shielding layer 3 is arranged on the inner end surface of the framework 1, so that the protection function of operating personnel of the glove box is realized.
As shown in fig. 1 and 2, the framework 1 should have good elasticity and adaptability so as to be convenient and quick for installing the hand sleeve wire. The framework 1 in this embodiment is formed by rolling and pressing ultrathin stainless steel spring pieces, and in order to further increase the elasticity and the self-adaptability of the framework 1, a plurality of strip-shaped openings 11 are formed in the end face of the stainless steel spring pieces at intervals along the length direction of the stainless steel spring pieces, and the elasticity of the stainless steel spring pieces can be increased on the basis of guaranteeing the use strength of the stainless steel spring pieces due to the arrangement of the openings 11, so that the framework is convenient to roll into a cylindrical shape structure. When the glove box pipeline 2 is installed, the glove box pipeline 2 can be directly sleeved from one end of the framework 1 without dismantling the glove box pipeline 2, the rear end framework structure is sleeved successively, and then 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 the 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 glove box pipelines 2 at different positions, a plurality of lead-free shielding device structures can be sleeved outside from inside to outside at the same time at the place where protection is needed, so that the lead-free shielding device has better adaptability.
The flexible shielding layer 3 in the present embodiment is made of a flexible shielding material with a thickness of 5mm, and can be fixed on the inner end surface of the frame 1 by means of thermocompression bonding during installation.
In use, the glove box operator attenuates the field dose rate level at the operator's site after shielding to 62.1% of the site before shielding. The thickness of the flexible shielding material in the shielding calculation is set to be 5mm in a single layer, and the shielding effect of the stainless steel framework 1 on the pipeline is not considered, so that the evaluation of the shielding effect 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 masking the glove box line with a single layer dedicated shield, a single worker would be expected to save a dose of 26.53 μsv daily.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, it is intended that the present invention also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (4)
1. An adaptive keel type lead-free shielding device special for glove box pipeline shielding, the lead-free shielding device comprising a glove box pipeline, characterized in that the lead-free shielding device further comprises:
a keel type barrel-shaped thin framework, wherein a cavity for the glove box pipeline to pass through is formed in the framework;
the flexible shielding layer is matched with the appearance of the framework, and the flexible shielding layer is arranged on the inner end face of the framework;
the framework is formed by curling and pressing thin stainless steel spring plates, and a plurality of strip-shaped openings are formed in the end face of the framework at intervals.
2. The self-adaptive keel type lead-free shielding device special for glove box pipeline shielding according to claim 1, wherein the flexible shielding layer is made of flexible shielding materials with the thickness of 5 mm.
3. The self-adaptive keel type lead-free shielding device special for glove box pipeline shielding according to claim 1 or 2, wherein the flexible shielding layer is fixed on the end face of the inner wall of the framework through thermocompression bonding.
4. The self-adaptive keel type lead-free shielding device special for shielding glove box pipelines according to 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 CN111462932A (en) | 2020-07-28 |
| CN111462932B true 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 (4)
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| 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 |
| 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 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070075277A1 (en) * | 2005-09-22 | 2007-04-05 | Smith Peter C | Lightweight radiation absorbing shield |
| CA2887612C (en) * | 2014-04-02 | 2018-05-15 | American Ceramic Technology, Inc. | 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 |
| 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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2020
- 2020-03-20 CN CN202010200907.8A patent/CN111462932B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
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| CN111462932A (en) | 2020-07-28 |
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