CN210575145U - Irradiation device for I-125 irradiation production - Google Patents
Irradiation device for I-125 irradiation production Download PDFInfo
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- CN210575145U CN210575145U CN201920881692.3U CN201920881692U CN210575145U CN 210575145 U CN210575145 U CN 210575145U CN 201920881692 U CN201920881692 U CN 201920881692U CN 210575145 U CN210575145 U CN 210575145U
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Abstract
The utility model discloses an irradiation device for reactor irradiation production I-125, which comprises a reactor irradiation container, a connecting conduit and a limit plug; the reactor irradiation container is connected with the limiting plug through the connecting conduit; the connecting conduit is respectively and fixedly connected with the reactor vessel and the limiting plug to realize the limiting function; the size of the limiting plug is matched with the opening of the hole. The utility model has the advantages as follows: 1. the irradiation container is limited through the limiting plug and the connecting conduit, so that the position of the irradiation container can be ensured, and safe production is realized. 2. The limiting plug comprises a fixing plug layer and a pore opening plug layer, has double fixing effects, and is safe and reliable. 3. The tunnel base further ensures that the stacking device is in the active area and plays a supporting role in preventing the stacking device from colliding with the wall and falling. 4. The protective sleeve is used for protecting the welding line, increasing the strength of the welding line and avoiding the corrosion of water in the reactor pool to the welding line.
Description
Technical Field
The utility model relates to a nuclear chemical industry field, concretely relates to surely target ware of separating for irradiating uranium foil target.
Background
125I is a long half-life (T)1/259.7d) releases low-energy gamma rays (27KeV, X-rays) by electron capture. Due to the fact that125long half-life period of I, low energy of gamma ray and no beta-Radiation, widely used in clinical diagnosis of nuclear medicine, biomedical research and tumor brachytherapy (X-ray seed source). In particular in the recent years it has become possible,125the medical use of I-seed sources has developed very rapidly.125The I seed source can be used for the brachytherapy of various malignant tumors (head and neck, digestive system, chest, urinary system tumors and the like),125the tumor tissue is killed to the maximum extent by releasing the radioactive rays for a short time, and the normal tissue is not damaged or minimally damaged, so that the purpose of treatment is achieved. In the clinical field, the medicine is prepared by mixing the raw materials,125the therapeutic effect of the I particle source on malignant tumors is confirmed, and the I particle source is considered to be a safe and effective treatment technology with low complication rate. With following125The medical application of I is becoming more and more extensive, domestic125The demand of I is in a rapidly growing situation.
Currently, there is no irradiation device in the prior art suitable for the reactor irradiation production of I-125.
In view of this, the present invention is especially provided.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims at providing an irradiation device for illumination production I-125, which can at least realize the purpose of illumination production I-125 and also can ensure the full utilization of the reactor core active area for irradiation production.
The technical scheme of the utility model as follows:
an irradiation device for reactor irradiation production I-125, which comprises a reactor irradiation container, a connecting conduit and a limiting plug; the reactor irradiation container is connected with the limiting plug through the connecting conduit; the connecting conduit is respectively and fixedly connected with the reactor vessel and the limiting plug to realize the limiting function; the size of the limiting plug is matched with the opening of the hole.
Further, the irradiation device for the irradiation production I-125 comprises a limiting plug and a fixing plug, wherein the limiting plug comprises a hole opening plug and a fixing plug; the pore passage plug is divided into two layers, the lower layer is aligned with the pore passage opening, and the upper layer can be supported on the pore passage opening in size; the fixed plug is arranged on the upper side of the pore opening plug and is fixedly connected with the connecting conduit; and the corresponding positions of the fixed plug and the pore opening plug are both provided with a conduit through hole.
Further, in the irradiation device for the irradiation production I-125, the pore opening plug and the fixed plug are provided with convection through holes with corresponding positions.
Further, in the irradiation device for the stacking production of I-125, the convection through hole is an oblong through hole.
Further, in the irradiation device for the irradiation production I-125, the conduit through hole on the pore channel opening plug is arranged at the central position of the pore channel opening plug.
Further, in the irradiation device for the irradiation production I-125, the connecting conduit is welded and fixed with the fixing plug.
Further, the irradiation device for the irradiation production I-125 further comprises a hole bottom support, wherein the hole bottom support comprises a supporting plate, a tray and a bracket; two ends of the bracket are respectively connected with the supporting plate and the tray; the supporting plate is supported at the bottom of the pore channel, and the tray is used for supporting the irradiation container.
Further, the irradiation device for the irradiation production I-125 comprises a bottle body; the lower end of the bottle body is provided with a seal head, and the upper end of the bottle body is provided with a seal head connecting column; the end socket connecting column is connected with the connecting pipe and is provided with a through hole for communicating the connecting pipe with the interior of the bottle body.
Further, in the irradiation device for the irradiation production I-125, a protective casing capable of protecting the connection part of the connecting conduit and the end enclosure connecting column is arranged outside the end enclosure connecting column.
Furthermore, the irradiation device for the irradiation production I-125 further comprises a support tube, wherein the support tube is sleeved outside the connecting conduit, one end of the support tube is connected with the end socket connecting column, and the other end of the support tube is supported by the limiting plug.
The utility model has the advantages as follows:
1. the irradiation container is limited through the limiting plug and the connecting conduit, so that the position of the irradiation container can be ensured, and safe production is realized.
2. The limiting plug comprises a fixing plug layer and a pore opening plug layer, has double fixing effects, and is safe and reliable.
3. The tunnel base further ensures that the stacking device is in the active area and plays a supporting role in preventing the stacking device from colliding with the wall and falling.
4. The protective sleeve is used for protecting the welding line, increasing the strength of the welding line and avoiding the corrosion of water in the reactor pool to the welding line.
Drawings
FIG. 1 is a schematic structural diagram of an irradiation device for irradiation production I-125 according to the present invention.
FIG. 2 is a schematic view of the structure of the illumination container.
Figure 3 is a schematic view of a structure of a tunnel portal plug.
Fig. 4 is a schematic structural view of the fixed plug.
Fig. 5 is a schematic structural view of the tunnel shoe.
In the above drawings, 1, a reactor vessel; 2. a protective sleeve; 3. connecting a conduit; 4. a pore canal opening plug; 5. a fixed plug; 6. supporting a tube; 11. an end enclosure 12 and a bottle body; 13. a seal head connecting column; 41. a conduit through hole; 42. A convective via; 51. a conduit through hole; 52. a convective via; 61. a support plate; 62. a support; 63. a tray.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in figure 1, the utility model provides an irradiation device for the reactor irradiation production I-125, which comprises a reactor irradiation container 1, a connecting conduit 3 and a limit plug; the reactor vessel 1 is connected with the limit plug through the connecting conduit 3; the connecting conduit 3 is respectively and fixedly connected with the reactor vessel 1 and the limiting plug to realize a limiting function; the size of the limiting plug is matched with the opening of the hole.
The heat in the irradiation bottle mainly comes from instant neutron collision heat and delayed gamma photon heat of the irradiation material, the gas target material absorbs the reaction heat of thermal neutron nuclei, and the heating power depends on the reactor operating power and the sample material amount. According to the reactor operating power and the required irradiation material amount, the irradiation safety can be ensured through thermal analysis.
As shown in FIG. 2, the reactor vessel 1 is a main body of the reactor system, is placed in an active area of a vertical duct of a reactor, and is shaped into a long cylinder; comprises a bottle body 12; the lower end of the bottle body 12 is provided with a seal head 11, and the upper end is provided with a seal head connecting column 13; the end socket 11 is welded at the bottom end of the bottle body 12, which can not only ensure the strength, but also meet the requirement of safe use of reactor thermal technology. The end socket connecting column 13 is connected with the connecting conduit 3 and is provided with a through hole for communicating the connecting conduit 3 with the interior of the bottle body 12. And a protective casing 2 capable of protecting the connection part of the connecting conduit 3 and the end enclosure connecting column 13 is arranged on the outer side of the end enclosure connecting column 13. Furthermore, the present embodiment further includes a supporting tube 6, the supporting tube is sleeved outside the connecting conduit 3, one end of the supporting tube is connected to the end socket connecting column 13, and the other end of the supporting tube is supported by the limiting plug; the stress of the connecting conduit 3 is avoided to ensure the safety of the irradiation bottle in the pore canal.
The irradiation container is fixed on the flow guide box through a pore opening plug 4 and a fixed plug 5 and is connected with an external gas circulation loop system through a connecting conduit 3, the irradiation system in the pore is longer, and a welding protective sleeve 2 is additionally arranged at the welding position of the reactor irradiation container 1 and the connecting conduit 3 for protecting a welding seam because the reactor pool water has an acidic pH value of about 5.5-6.5, so that the welding seam strength is increased, and the corrosion of the water in the reactor pool to the welding seam is also avoided.
The irradiation container is arranged in an active region of a vertical pore passage of the reactor, and is led out of the pore passage opening through the longer connecting conduit 3, so that the irradiation container cannot be contacted with the pore passage wall under the safety requirement, the contact between the irradiation container and the pore passage wall is prevented from generating a nucleate boiling state at the contact part, the heat generated in the irradiation process of the irradiation container cannot be released in time, and the temperature of the irradiation container is quickly increased to cause the wall of the irradiation container to be burnt through. The irradiation container is centrally positioned by the hole channel opening plug 4 and the fixing plug 5, and the support tube connecting the irradiation container to the hole channel opening plug 4 is welded, so that the vertical suspension strength of the irradiation container is enhanced, the position of the irradiation container 1 in a hole channel is controlled, and the irradiation container is prevented from swinging left and right.
The limiting plug comprises a duct opening plug 4 (see fig. 3) and a fixed plug 5 (see fig. 4); the pore passage opening plug 4 is divided into two layers, the lower layer is aligned with the edge of the pore passage opening, and the size of the upper layer can be supported on the pore passage opening; the fixed plug 5 is arranged on the upper side of the pore opening plug 4 and is fixedly connected with the connecting conduit 3; the corresponding positions of the fixed plug 5 and the pore opening plug 4 are both provided with conduit through holes (41, 51). The reactor vessel 1 has stronger buoyancy in water, so the stainless steel pore opening plug 4 can also realize counterweight to ensure that the reactor vessel sinks into the pore. The pore passage opening plug 4 and the fixed plug 5 are also provided with convection through holes (42, 52) with mutually corresponding positions. The convection through holes (42, 52) are oblong through holes. The conduit through hole 41 is provided in the center of the tunnel port plug 4. The guide pipe through holes (41, 51) are used for penetrating out of the connecting guide pipe 3 of the reactor vessel 1, meanwhile, the reactor vessel 1 is limited in the center, the irradiation vessel is prevented from being contacted with the wall of the pore channel and possibly burnt through, and the convection through holes can enable heat generated in the pore channel to be convectively exchanged and released in time, so that the thermal safety of the reactor vessel is ensured. Since the port stopper 4 is made of stainless steel and cannot be welded and fixed to the aluminum connecting pipe 3 of the reactor flask, the fixing stopper 5 is made of aluminum. The fixing plug 5 is positioned and welded with the connecting conduit 3, the position of the reactor flask is limited on a designed fixing position, and the fixing plug and the pore passage opening plug 4 play a double fixing role together.
As shown in fig. 5, the present embodiment further includes a tunnel mount, which includes a support plate 61, a tray 63, and a bracket 62; the two ends of the bracket 62 are respectively connected to the supporting plate 61 and the tray 63; the support plate 61 is supported at the bottom of the hole, and the tray 63 is used for supporting the irradiation container 1. The active area in the vertical pore channel of the reactor has a longer distance from the bottom of the pore channel, and in order to ensure the absolute safety of the irradiation bottle in the active area of the inner pore channel, a pore channel bottom bracket is placed at the bottom of the pore channel and supports the bracket irradiation bottle. In order to ensure that the irradiation container is absolutely not in contact with the wall of the duct, the tray 63 is polygonal (preferably octagonal), so that even if the irradiation container is shaken by the washing of the cooling water, the heat release distance between the irradiation bottle and the wall of the duct is ensured, and no gap between the irradiation container and the tray 63 is caused to contact with the wall of the duct. The pore canal bottom support is made of aluminum materials which accord with the thermal safety of the reactor, is arranged outside the active area of the pore canal and is used for supporting the reactor irradiation bottle and ensuring the stability of the reactor irradiation bottle.
The utility model discloses to the demand of piling product hundred curie level I-125, utilize stop device to fix it in the reactor core pore ingeniously, make full use of reactor core active area irradiates. Not only meets the requirement of reactor safety, but also meets the requirement of producing iodine-125 with a certain yield. The operation is simple, the target material device is easy to control, the pressure resistance of the target piece meets the strength requirement, and the performance is stable and reliable when the target piece is used in the process of producing iodine-125 by reactor irradiation.
It will be apparent to those skilled in the art that various changes and modifications may be made 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 and their equivalents, the present invention is also intended to encompass such modifications and variations.
Claims (10)
1. An irradiation apparatus for use in the heap irradiation production of I-125, comprising: comprises a reactor vessel (1), a connecting conduit (3) and a limit plug; the reactor vessel (1) is connected with the limiting plug through the connecting conduit (3); the connecting conduit (3) is respectively and fixedly connected with the reactor vessel (1) and the limiting plug to realize the limiting function; the size of the limiting plug is matched with the opening of the hole.
2. The irradiation facility for the heap production of I-125 as claimed in claim 1 wherein: the limiting plug comprises a pore opening plug (4) and a fixed plug (5); the pore passage opening plug (4) is divided into two layers, the lower layer is aligned with the pore passage opening, and the size of the upper layer can be supported on the pore passage opening; the fixed plug (5) is arranged on the upper side of the pore passage opening plug (4) and is fixedly connected with the connecting conduit (3); and the corresponding positions of the fixed plug (5) and the pore opening plug (4) are both provided with conduit through holes.
3. The irradiation facility for the heap irradiation production I-125 of claim 2 wherein: the pore passage opening plug (4) and the fixed plug (5) are also provided with convection through holes (42, 52) with mutually corresponding positions.
4. The irradiation facility for the heap production of I-125 as claimed in claim 3 wherein: the convection through holes (42, 52) are oblong through holes.
5. The irradiation facility for the heap production of I-125 as claimed in claim 3 wherein: the conduit through hole on the pore passage opening plug (4) is arranged at the central position of the pore passage opening plug (4).
6. The irradiation facility for the heap irradiation production I-125 of claim 2 wherein: the connecting conduit (3) and the fixed plug (5) are welded and fixed.
7. The irradiation facility for the heap irradiation production I-125 as claimed in any one of claims 1 to 6, wherein: the device also comprises a duct bottom support, and the duct bottom support comprises a supporting plate (61), a tray (63) and a bracket (62); two ends of the bracket (62) are respectively connected to the supporting plate (61) and the tray (63); the supporting plate (61) is supported at the bottom of the hole, and the tray (63) is used for supporting the stacking container (1).
8. The irradiation facility for the heap irradiation production I-125 as claimed in any one of claims 1 to 6, wherein: the reactor vessel (1) comprises a bottle body (12); the lower end of the bottle body (12) is provided with a seal head (11), and the upper end is provided with a seal head connecting column (13); the end socket connecting column (13) is connected with the connecting conduit (3) and is provided with a through hole for communicating the connecting conduit (3) with the interior of the bottle body (12).
9. The irradiation facility for the heap production of I-125 as claimed in claim 8 wherein: the outer side of the end enclosure connecting column (13) is provided with a protective casing (2) capable of protecting the connecting part of the connecting conduit (3) and the end enclosure connecting column (13).
10. The irradiation facility for the heap irradiation production I-125 of claim 9 wherein: the device is characterized by further comprising a supporting pipe, wherein the supporting pipe is sleeved outside the connecting pipe (3), one end of the supporting pipe is connected to the end socket connecting column (13), and the other end of the supporting pipe is supported by the limiting plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920881692.3U CN210575145U (en) | 2019-06-12 | 2019-06-12 | Irradiation device for I-125 irradiation production |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920881692.3U CN210575145U (en) | 2019-06-12 | 2019-06-12 | Irradiation device for I-125 irradiation production |
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| CN210575145U true CN210575145U (en) | 2020-05-19 |
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| CN201920881692.3U Active CN210575145U (en) | 2019-06-12 | 2019-06-12 | Irradiation device for I-125 irradiation production |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265171A (en) * | 2019-06-12 | 2019-09-20 | 中国原子能科学研究院 | A kind of irradiation devices shining production I-125 for heap |
| CN113351017A (en) * | 2021-06-23 | 2021-09-07 | 中国核动力研究设计院 | Extraction device for gaseous iodine in loop for producing iodine-125 |
-
2019
- 2019-06-12 CN CN201920881692.3U patent/CN210575145U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110265171A (en) * | 2019-06-12 | 2019-09-20 | 中国原子能科学研究院 | A kind of irradiation devices shining production I-125 for heap |
| CN113351017A (en) * | 2021-06-23 | 2021-09-07 | 中国核动力研究设计院 | Extraction device for gaseous iodine in loop for producing iodine-125 |
| CN113351017B (en) * | 2021-06-23 | 2022-04-08 | 中国核动力研究设计院 | Extraction device for gaseous iodine in loop for producing iodine-125 |
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