CN201397690Y - Radioactive source jacket - Google Patents
Radioactive source jacket Download PDFInfo
- Publication number
- CN201397690Y CN201397690Y CN2009201079975U CN200920107997U CN201397690Y CN 201397690 Y CN201397690 Y CN 201397690Y CN 2009201079975 U CN2009201079975 U CN 2009201079975U CN 200920107997 U CN200920107997 U CN 200920107997U CN 201397690 Y CN201397690 Y CN 201397690Y
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- Prior art keywords
- radioactive source
- involucrum
- outer envelope
- jacket
- stainless steel
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Abstract
The utility model discloses a radioactive source jacket, which comprises an inner jacket, an outer jacket and a protective jacket, wherein radioactive substances are sealed inside the inner jacket, the outer jacket is arranged outside the inner jacket in a sealing form and is made of stainless steel materials capable of bearing high pressure above 170 MPa, the protective jacket is arranged outsidethe outer jacket and is made of stainless steel materials capable of bearing high pressure above 140 MPa, and a protective jacket cover is disposed on the protective jacket. The radioactive source jacket can bear external high pressure, and is not easy to deform.
Description
Technical field
The utility model relates to radioactive source radiation protection field, particularly relates to a kind of radioactive source involucrum.
Background technology
Radiomaterials such as radioactive isotope often are sealed in the radioactive source involucrum, to prevent its accidental release in use, transportation, storing process.At present, the radioactive source involucrum is generally the inside and outside involucrum of double-deck common stainless steel material, and adopts the argon arc welding sealing, and it is withstand voltage to be no more than 140MPa, like this, during high pressure, can cause involucrum deformation bearing outside, even the involucrum cracking, causes the radiomaterial leakage.
Because the defective that above-mentioned prior art exists, the design people proposes a kind of radioactive source involucrum, can avoid above-mentioned shortcoming, makes it have more practicality.
The utility model content
Technical problem to be solved in the utility model is, the radioactive source involucrum of the outer high pressure of a kind of ability is provided, and is very suitable for practicality.
The purpose of this utility model and solve its technical matters and realize by the following technical solutions.A kind of radioactive source involucrum according to the utility model proposes comprises: interior involucrum, and its inner sealing has radiomaterial; Outer envelope, its sealing are installed in the outside of described interior involucrum, and it is the stainless steel of the above high pressure of anti-170MPa; Protecting crust, it is installed in the outside of described outer envelope, and it is the stainless steel of the above high pressure of anti-140MPa, and a protecting shell cover is housed on it.
The purpose of this utility model and solve its technical matters and also can be applied to the following technical measures to achieve further.
Aforesaid radioactive source involucrum is provided with an O-ring seal between described protecting crust and the described protecting shell cover.
Aforesaid radioactive source involucrum, the material of described interior involucrum is the flexible metal.
Aforesaid radioactive source involucrum, described flexible metal are platinumiridio, platinum-rhodium alloy, platinum, iridium, gold, ruthenium or rhodium.
Aforesaid radioactive source involucrum, the stainless steel that described outer envelope adopts is 17-4PH.
Aforesaid radioactive source involucrum, the stainless steel that described protecting crust adopts is 2Cr13 or 3Cr13.
Aforesaid radioactive source involucrum, described protecting crust are cylindrical structural, and when its diameter during less than 30mm, its thickness is more than the 3mm; When its diameter more than or equal to 30mm during less than 50mm, its thickness is more than the 5mm.
Aforesaid radioactive source involucrum, described outer envelope are cylindrical structural, and when its diameter during less than 12mm, its thickness is more than the 2mm; When its diameter more than or equal to 12mm during less than 22mm, its thickness is more than the 3mm.
Aforesaid radioactive source involucrum, described outer envelope adopts and seals from melting welding.
Aforesaid radioactive source involucrum, described interior involucrum adopts and seals from melting welding.
As shown from the above technical solution, the utlity model has following beneficial effect:
1, radioactive source involucrum of the present utility model has the three-decker of interior involucrum, outer envelope and protecting crust, outer envelope adopts high-intensity stainless steel material, the external pressure that ability 170MPa is above, protecting crust adopts the higher stainless steel of intensity, the high pressure that ability 140MPa is above has been avoided the generation of involucrum distortion situation under the high-pressure situations outside preferably.
2, the material of interior involucrum is the flexible metal, and under extreme case, for example outer envelope breaks, during the external pressure invasion, because there is screen resilience preferably the flexible metal, even the gross distortion of involucrum in causing also can not cause the leakage of radiomaterial; In addition, the flexible metal also have be able to bear strong corrosion, resistant to elevated temperatures characteristic, under high temperature and deep-etching condition, the situation that radiomaterial leaks also can not appear.
With reference to the accompanying drawing description of a preferred embodiment, above-mentioned and other purpose of the present utility model, feature and advantage will be more obvious by following.
Description of drawings
Fig. 1 is the cross-sectional schematic of the utility model one preferred embodiment.
Embodiment
To describe specific embodiment of the utility model in detail below.Should be noted that the embodiments described herein only is used to illustrate, be not limited to the utility model.
See also shown in Figure 1ly, it is the cross-sectional schematic of the utility model one preferred embodiment.In the present embodiment, this radioactive source involucrum comprises: interior involucrum 11, outer envelope 12 and protecting crust 13.Wherein, involucrum 11 seals in this, and radiomaterial 10 is equipped with in its inside; This outer envelope 12 also seals, and it is installed in the outside of involucrum 11 in this, and is the stainless steel of the above high pressure of anti-170MPa, for example is high-intensity 17-4PH stainless steel; This protecting crust 13 is installed in the outside of this outer envelope 12, and is the stainless steel of the above high pressure of anti-140MPa, for example is higher 2Cr13 of intensity or 3Cr13 stainless steel, and a protecting shell cover 14 is housed on it, to seal this protecting crust.
Wherein, interior involucrum 11 and outer envelope 12 can adopt modes such as argon arc welding, EBW (electron beam welding) or plasma welding to carry out sealing from melting welding.
Preferably, be provided with an O-ring seal 15 between this protecting crust 13 and this protecting shell cover 14, to reach better sealing effectiveness, sealing circle 15 for example is a rubber seal.
The manufacturing process of the utility model preferred embodiment is: involucrum 11 in radiomaterial is contained in, and use seals from welding technology; Again interior involucrum 11 is positioned in the outer envelope 12, covers outsourcing cap 16 then, and use seals from welding technology; At last outer envelope 12 is packed in the protecting crust 13 into the protecting shell cover 14 of screwing on.
Those skilled in the art will know that, involucrum and outer envelope in employed radioactive source involucrum only comprises in the prior art, and the radioactive source involucrum that the utility model proposed has increased protecting crust 13 compared to existing technology, like this, can play stronger protective effect to the radiomaterial 13 of inside, in addition, it can be more than the withstand voltage 140Mpa, under the situation of high external pressure, still can protect its inner outer envelope not to be subjected to the corrosion of surrounding medium; Even under higher temperature, pressure or during the O-ring seal ageing failure; protecting crust 13 forfeitures are to the protective capability of outer envelope 12; still can bear external pressure more than the 170Mpa by the outer envelope 12 of high-strength stainless steel manufacturing, avoid the generation of outer envelope distortion situation preferably.
In one embodiment, outer envelope 12 and protecting crust 13 are cylindrical structural, for reaching better protection effect, when the diameter of outer envelope 12 during less than 12mm, the thickness of this outsourcing shell wall is more than the 2mm, when the diameter of outer envelope 12 more than or equal to 12mm during less than 22mm, the thickness of this outsourcing shell wall is more than the 3mm; When the diameter of protecting crust 13 during less than 30mm, the thickness of this protection shell wall is more than the 3mm, when the diameter of protecting crust 13 more than or equal to 30mm during less than 50mm, the thickness of this protection shell wall is more than the 5mm.
Preferably, the material of interior involucrum 11 is the flexible metal, for example is platinumiridio, platinum-rhodium alloy, platinum, iridium, gold, ruthenium or rhodium etc.Like this, under extreme case, for example outer envelope 12 breaks, during the external pressure invasion, because there is screen resilience preferably the flexible metal, even the gross distortion of involucrum 11 in causing also can not cause the leakage of radiomaterial; In addition, the flexible metal also have be able to bear strong corrosion, resistant to elevated temperatures characteristic, under high temperature and deep-etching condition, the situation that radiomaterial leaks also can not appear.
Though described the utility model with reference to several exemplary embodiments, should be appreciated that used term is explanation and exemplary and nonrestrictive term.The spirit or the essence that do not break away from utility model because the utility model can specifically be implemented in a variety of forms, so be to be understood that, the foregoing description is not limited to any aforesaid details, and should be in the spirit and scope that claim limited of enclosing explain widely, therefore fall into whole variations in claim or its equivalent scope and remodeling and all should be the claim of enclosing and contain.
Claims (10)
1, a kind of radioactive source involucrum is characterized in that, comprising:
Interior involucrum, its inner sealing has radiomaterial;
Outer envelope, its sealing are installed in the outside of described interior involucrum, and it is the stainless steel of the above high pressure of anti-170MPa; And
Protecting crust, it is installed in the outside of described outer envelope, and it is the stainless steel of the above high pressure of anti-140MPa, and a protecting shell cover is housed on it.
2, radioactive source involucrum according to claim 1 is characterized in that, is provided with an O-ring seal between described protecting crust and the described protecting shell cover.
3, radioactive source involucrum according to claim 1 is characterized in that, the material of described interior involucrum is the flexible metal.
4, radioactive source involucrum according to claim 3 is characterized in that, described flexible metal is platinumiridio, platinum-rhodium alloy, platinum, iridium, gold, ruthenium or rhodium.
5, radioactive source involucrum according to claim 1 is characterized in that, the stainless steel that described outer envelope adopts is 17-4PH.
6, radioactive source involucrum according to claim 1 is characterized in that, the stainless steel that described protecting crust adopts is 2Cr13 or 3Cr13.
7, radioactive source involucrum according to claim 1 is characterized in that, described protecting crust is a cylindrical structural, and when its diameter during less than 30mm, its thickness is more than the 3mm; When its diameter during more than or equal to 30mm and less than 50mm, its thickness is more than the 5mm.
8, radioactive source involucrum according to claim 1 is characterized in that, described outer envelope is a cylindrical structural, and when its diameter during less than 12mm, its thickness is more than the 2mm; When its diameter during more than or equal to 12mm and less than 22mm, its thickness is more than the 3mm.
9, radioactive source involucrum according to claim 1 is characterized in that, described outer envelope adopts and seals from melting welding.
10, radioactive source involucrum according to claim 1 is characterized in that, described interior involucrum adopts and seals from melting welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201079975U CN201397690Y (en) | 2009-05-15 | 2009-05-15 | Radioactive source jacket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201079975U CN201397690Y (en) | 2009-05-15 | 2009-05-15 | Radioactive source jacket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201397690Y true CN201397690Y (en) | 2010-02-03 |
Family
ID=41620215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201079975U Expired - Lifetime CN201397690Y (en) | 2009-05-15 | 2009-05-15 | Radioactive source jacket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201397690Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012045252A1 (en) * | 2010-10-09 | 2012-04-12 | 宋世鹏 | Shell for source |
| CN104517662A (en) * | 2013-09-26 | 2015-04-15 | 中国辐射防护研究院 | Radioactive source packaging and sealing devices and packaging and sealing methods |
| CN104985339A (en) * | 2015-06-30 | 2015-10-21 | 柳州金茂机械有限公司 | Welding method for inflation pipes |
| CN107464597A (en) * | 2017-08-30 | 2017-12-12 | 中广核研究院有限公司 | Hot industry cobalt source anti-leak encapsulating structure and packaging technology |
| CN109570690A (en) * | 2018-12-19 | 2019-04-05 | 中国原子能科学研究院 | A kind of radioactive source jacket aperture welding method and radioactive source jacket open-celled structure |
-
2009
- 2009-05-15 CN CN2009201079975U patent/CN201397690Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012045252A1 (en) * | 2010-10-09 | 2012-04-12 | 宋世鹏 | Shell for source |
| CN102446568A (en) * | 2010-10-09 | 2012-05-09 | 上海世鹏实验室科技发展有限公司 | Source housing |
| CN104517662A (en) * | 2013-09-26 | 2015-04-15 | 中国辐射防护研究院 | Radioactive source packaging and sealing devices and packaging and sealing methods |
| CN104985339A (en) * | 2015-06-30 | 2015-10-21 | 柳州金茂机械有限公司 | Welding method for inflation pipes |
| CN107464597A (en) * | 2017-08-30 | 2017-12-12 | 中广核研究院有限公司 | Hot industry cobalt source anti-leak encapsulating structure and packaging technology |
| CN109570690A (en) * | 2018-12-19 | 2019-04-05 | 中国原子能科学研究院 | A kind of radioactive source jacket aperture welding method and radioactive source jacket open-celled structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100203 |
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| CX01 | Expiry of patent term |