CN112599273B - Container for storing plutonium solution sample - Google Patents
Container for storing plutonium solution sample Download PDFInfo
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- CN112599273B CN112599273B CN202011161175.2A CN202011161175A CN112599273B CN 112599273 B CN112599273 B CN 112599273B CN 202011161175 A CN202011161175 A CN 202011161175A CN 112599273 B CN112599273 B CN 112599273B
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- Prior art keywords
- tank body
- inner tank
- injection port
- sealing
- storing
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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
- G21F5/00—Transportable or portable shielded containers
- G21F5/002—Containers for fluid radioactive wastes
-
- 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
- G21F5/00—Transportable or portable shielded containers
- G21F5/015—Transportable or portable shielded containers for storing radioactive sources, e.g. source carriers for irradiation units; Radioisotope containers
-
- 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
- G21F5/00—Transportable or portable shielded containers
- G21F5/06—Details of, or accessories to, the containers
- G21F5/12—Closures for containers; Sealing arrangements
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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)
- Closures For Containers (AREA)
Abstract
The invention belongs to the technical field of radioactive solution storage, and particularly relates to a container for storing a plutonium solution sample. The container provided by the invention has the overall weight of about 1.5kg, has the characteristics of high safety and good sealing property compared with an ampoule bottle made of glass, is convenient to operate and transport, can be repeatedly used, and can be used for storing plutonium solution samples for a long time. In addition, this container can be used as a reference when it is necessary to store a larger amount of plutonium solution.
Description
Technical Field
The invention belongs to the technical field of radioactive solution storage, and particularly relates to a container for storing a plutonium solution sample.
Background
The plutonium solution is produced during the reprocessing of nuclear fuel cycles, is highly radioactive, will radiolyze to produce gases, and releases radioactive aerosols, and because plutonium solution itself contains nitric acid, is somewhat corrosive, it is therefore necessary to take special consideration for the encapsulation of plutonium solutions, in particular for the problems of sealing and corrosion resistance.
At present, the aftertreatment factory generally uses the ampoule to hold plutonium solution sample, and its material is glass, and is fragile, and the security is relatively poor, has brought very big inconvenience for transportation and use to because plutonium solution constantly radiolysis produces gas, release radioactive aerosol, also proposed very high requirement to the leakproofness of ampoule. Therefore, a container having high safety, corrosion resistance and good sealing properties is required for storing a plutonium solution sample for a long period of time.
Disclosure of Invention
In view of the above-described drawbacks of the ampoule bottle, it is an object of the present invention to provide a container for storing a plutonium solution sample, which has the characteristics of high safety and good sealing property as compared with an ampoule bottle, is easy to handle, can be repeatedly used, and can be used for storing a plutonium solution sample for a long period of time.
In order to achieve the purpose, the technical scheme adopted by the invention is that the container for storing the plutonium solution sample comprises an inner tank body for hermetically storing the plutonium solution and an outer tank body for hermetically storing the inner tank body, wherein the inner tank body and the outer tank body are both made of 316L stainless steel.
Further, the inner tank body comprises a cylindrical inner tank body, and the bottom of the inner tank body is provided with a sealing structure; still including setting up the filling opening at inner tank body stack shell top, still including being used for the sealed lid of filling opening is sealed, still including setting up first top cap on the filling opening still includes the setting and is in the first fastening section of the polygon of inner tank body stack shell bottom, the use of being convenient for instrument screws up the operation, will sealed lid passes through first top cap screws up on the filling opening.
Furthermore, the top of the filling opening is of a bell mouth structure, the bottom of the filling opening is of a downward welding groove, the top of the cylinder body of the inner tank body is provided with an upward welding groove, and the filling opening and the cylinder body of the inner tank body are hermetically welded together through the two welding grooves; a through hole is formed inside the injection opening and is used for injecting the plutonium solution; and the outer side of the injection opening is provided with threads.
Furthermore, the top of the sealing cover is provided with a sealing structure for sealing the through hole on the injection opening, and the bottom of the sealing cover is provided with a groove of a bell mouth shape corresponding to the top of the injection opening.
Further, the sealing cover is positioned between the injection opening and the first top cover, the first top cover is connected with the injection opening through threads on the outer side of the injection opening, and the sealing cover is enabled to seal the through hole of the injection opening; the shape of first top cap is polygon nut, and the operation is screwed up to the use of being convenient for instrument, be equipped with the round hole in the middle of the first top cap.
Further, the outer tank body comprises a cylindrical outer tank body, the bottom of the outer tank body is provided with a sealing structure, the bottom of the outer tank body also comprises a second top cover arranged at the top of the outer tank body, and the top of the second top cover is provided with a sealing structure; still including setting up the polygonal second fastening section at second top cap top is in with the setting the polygonal third fastening section of outer jar body stack shell bottom, the operation of screwing up is convenient for use instrument.
Furthermore, the top of the outer tank body barrel body is provided with threads, and the second top cover is connected with the outer tank body barrel body through the threads.
Further, still including setting up the second top cap with annular sealed the pad between the outer jar of body stack shell, the material of sealed pad is polytetrafluoroethylene, through the second top cap compresses tightly sealed pad is realized the second top cap with seal between the outer jar of body stack shell.
Further, it is right still including being used for the leakproofness of the inner tank body carries out the air cock of testing, the lower half of air cock with the horn mouth at the top of filling opening suits, the first half of air cock is an intake pipe, the intake pipe top sets up the slope, is convenient for insert the gas-supply pipe, pressurizes the operation, the air cock can pass through first top cap is fixed on the filling opening, the intake pipe can be followed circular hole on the first top cap is worn out.
The invention has the beneficial effects that:
1. whole container weight is about 1.5kg, compares with the ampoule, has the security height, characteristics that the leakproofness is good to be convenient for operate, convenient transportation, can use repeatedly, can be used for storing plutonium solution sample for a long time.
2. This container can be used as a reference when it is necessary to store a larger amount of plutonium solution.
Drawings
FIG. 1 is a schematic view of an inner can body 1 according to an embodiment of the present invention;
FIG. 2 is a schematic view of a fill port 2 according to an embodiment of the present invention;
FIG. 3 is a schematic view of a sealing cap 3 according to an embodiment of the present invention;
FIG. 4 is a schematic view of a first header 4 according to an embodiment of the present invention;
fig. 5 is a schematic view of an inner tank of a container for storing a plutonium solution sample according to an embodiment of the present invention;
fig. 6 is a schematic view of an outer tank of a container for storing a plutonium solution sample according to an embodiment of the present invention;
FIG. 7 is a schematic view of an air cap 11 according to an embodiment of the present invention;
in the figure: 1-inner tank body, 2-filling opening, 3-sealing cover, 4-first top cover, 5-first fastening section, 6-outer tank body, 7-sealing gasket, 8-second top cover, 9-second fastening section, 10-third fastening section and 11-air nozzle.
Detailed Description
The invention is further described below with reference to the figures and examples.
The container for storing the plutonium solution sample provided by the invention adopts a double-layer structure and comprises an inner tank body (shown in figure 5) for hermetically storing the plutonium solution and an outer tank body (shown in figure 6) for hermetically storing the inner tank body, wherein the inner tank body and the outer tank body are both made of 316L stainless steel.
The inner tank body comprises a cylindrical inner tank body 1 (shown in figure 1), the bottom of the inner tank body 1 is a sealing structure, the wall thickness of the inner tank body 1 is 3mm, the inner diameter is 26mm, and the height is 200mm; still including setting up the filling opening 2 at inner tank body stack 1 top (see fig. 2), still including being used for the sealed lid 3 of filling opening 2 sealed (see fig. 3), still including setting up first top cap 4 on filling opening 2 (see fig. 4), still including setting up the first fastening section 5 of the polygon in inner tank body stack 1 bottom, first fastening section 5 can adopt outer hexagonal structure, and the use of being convenient for instrument carries out the screwing operation, screws up sealed lid 3 on filling opening 2 through first top cap 4.
The top of the filling opening 2 is of a bell mouth structure, the bottom of the filling opening 2 is of a downward welding groove, the top of the inner tank body barrel body 1 is provided with an upward welding groove, and the filling opening 2 and the inner tank body barrel body 1 are hermetically welded together through the two welding grooves; a through hole is formed in the injection port 2, the inner diameter of the through hole is 8mm, and the through hole is used for injecting a plutonium solution; the outside of the sprue 2 is provided with a screw thread.
The top of the sealing cover 3 is a sealing structure for sealing the through hole on the injection port 2, and the bottom is a groove of a bell mouth shape corresponding to the top of the injection port 2.
The sealing cover 3 is positioned between the injection port 2 and the first top cover 4, the first top cover 4 is connected with the injection port 2 through threads on the outer side of the injection port 2, and the sealing cover 3 is pressed to enable the sealing cover 3 to seal a through hole of the injection port 2; the molding of first top cap 4 is polygon nut, can adopt the structure of hexagonal nut for example, and the operation of screwing up is carried out to the use of being convenient for instrument, is equipped with the round hole in the middle of first top cap 4.
The weight of the inner tank body is about 0.6kg, the whole size is about phi 30mm multiplied by 240mm, the volume in the cavity is about 88mL, and a certain space is reserved for the solution radiolysis to generate gas and release radioactive aerosol, so the volume of the liquid contained in the cavity is generally less than 40mL.
Because plutonium solution is highly toxic and will radiolyze to produce gas, releasing radioactive aerosol, an outer tank has also been designed in order to ensure safety. The outer tank body comprises a cylindrical outer tank body 6, the bottom of the outer tank body 6 is provided with a sealing structure, the wall thickness of the outer tank body 6 is 3mm, the inner diameter is 32mm, and the height is 245mm; the top of the second top cover 8 is a sealing structure; still including setting up at the polygonal second fastening section 9 at 8 tops of second top caps and setting up the polygonal third fastening section 10 in outer jar of body stack shell 6 bottoms, second fastening section 9 and third fastening section 10 can adopt outer hexagonal structure, and the use of being convenient for instrument screws up the operation.
The 6 tops of outer jar of body stack are equipped with the screw thread, and second top cap 8 is connected with outer jar of body stack 6 through the screw thread.
Still including setting up the annular sealed pad 7 between second top cap 8 and outer jar of body stack 6, sealed pad 7 material is polytetrafluoroethylene, compresses tightly sealed pad 7 through second top cap 8 and realizes the sealed between second top cap 8 and the outer jar of body stack 6.
The weight of the outer tank body is about 0.7kg, the whole size is phi 42mm multiplied by 260mm, the inner tank body is arranged in the outer tank body after being sealed, and then the upper and lower second fastening sections 9 and the third fastening section 10 are screwed tightly, so that the double-layer sealing effect is achieved.
The inner tank sealing device further comprises an air tap 11 (see figure 7) used for testing the sealing performance of the inner tank body, the lower half part of the air tap 11 is matched with a bell mouth at the top of the injection opening 2, the upper half part of the air tap 11 is an air inlet pipe, the wall thickness of the air inlet pipe is 1.5mm, the inner diameter of the air inlet pipe is 5.7mm, the outer diameter of the air inlet pipe is 7.2mm, the length of the air inlet pipe is 55mm, and the top end of the air inlet pipe is provided with a certain slope, so that an air delivery pipe can be conveniently inserted into the air inlet pipe for pressurizing operation; air cock 11 can be fixed on injection mouth 2 through first top cap 4, and the round hole on first top cap 4 can be followed to the intake pipe and worn out.
Because plutonium solution radiolysis produces gas and release radioactive aerosol, consequently the gas in the inner tank body can form the malleation, replaces sealed lid 3 with gas nozzle 11, compresses tightly on injection opening 2 through first top cap 4, connects the gas-supply pipe in the intake pipe of gas nozzle 11, uses the air pump to suppress the internal portion of inner tank, then arranges the inner tank body in the aquatic and soaks, detects the inner tank body gas tightness. Experiments show that when the gas in the inner tank body is pressurized to 8kg, the sealing performance of the inner tank body is still good, and the air tap 11 is repeatedly disassembled, assembled and pressurized to test, so that the good air tightness can be kept, the inner tank body can be repeatedly used, and the sealing performance can be guaranteed.
After the air tightness detection is finished, the first top cover 4 and the air tap 11 are taken down, then the plutonium solution is transferred into the cavity of the inner tank body through a liquid transfer machine, and then the sealing cover 3 and the first top cover 4 are sequentially added on the injection port 2 and are screwed tightly for sealing; the sealed inner tank body is placed in the outer tank body, the sealing gasket 7 and the second top cover 8 are sequentially added to the top of the outer tank body, and the sealing effect is achieved by screwing the second fastening section 9 and the third fastening section 10.
The device according to the present invention is not limited to the embodiments described in the specific embodiments, and those skilled in the art can derive other embodiments according to the technical solutions of the present invention, and also belong to the technical innovation scope of the present invention.
Claims (4)
1. A container for storing a plutonium solution sample, characterized in that: the plutonium solution storage tank comprises an inner tank body used for hermetically storing plutonium solution and an outer tank body used for hermetically storing the inner tank body, wherein the inner tank body and the outer tank body are both made of 316L stainless steel;
the inner tank comprises a cylindrical inner tank body (1), and the bottom of the inner tank body (1) is of a sealing structure; the filling opening is characterized by further comprising a filling opening (2) arranged at the top of the inner tank body barrel body (1), a sealing cover (3) used for sealing the filling opening (2), a first top cover (4) arranged on the filling opening (2), and a polygonal first fastening section (5) arranged at the bottom of the inner tank body barrel body (1), so that a tool can be used for screwing conveniently, and the sealing cover (3) is screwed on the filling opening (2) through the first top cover (4);
the top of the injection port (2) is of a bell-mouth structure, the bottom of the injection port is of a downward welding groove, the top of the inner tank body barrel body (1) is provided with an upward welding groove, and the injection port (2) and the inner tank body barrel body (1) are hermetically welded together through the two welding grooves; a through hole is formed inside the injection port (2) and is used for injecting the plutonium solution; the outer side of the injection port (2) is provided with threads;
the top of the sealing cover (3) is provided with a sealing structure for sealing the through hole on the injection port (2), and the bottom of the sealing cover is provided with a horn-shaped groove matched with the top of the injection port (2);
the sealing cover (3) is positioned between the injection port (2) and the first top cover (4), the first top cover (4) is connected with the injection port (2) through threads on the outer side of the injection port (2), and the sealing cover (3) is enabled to seal a through hole of the injection port (2); the first top cover (4) is a polygonal nut, so that a tool can be conveniently used for screwing, and a circular hole is formed in the middle of the first top cover (4);
still including being used for right air cock (11) that the leakproofness of the inner tank body was tested, the lower half of air cock (11) with the horn mouth at the top of filling opening (2) suits, the first half of air cock (11) is an intake pipe, the intake pipe top sets up the slope, is convenient for insert the gas-supply pipe, pressurizes the operation, air cock (11) can pass through first top cap (4) are fixed on filling opening (2), the intake pipe can be followed round hole on first top cap (4) is worn out.
2. A container for storing a plutonium solution sample according to claim 1, characterized in that: the outer tank body comprises a cylindrical outer tank body (6), the bottom of the outer tank body (6) is provided with a sealing structure, the outer tank body further comprises a second top cover (8) arranged at the top of the outer tank body (6), and the top of the second top cover (8) is provided with a sealing structure; still including setting up the polygonal second fastening section (9) at second top cap (8) top and setting are in the polygonal third fastening section (10) of outer jar body stack shell (6) bottom, the use of convenient to use instrument screws up the operation.
3. A container for storing a plutonium solution sample according to claim 2, characterized in that: the top of the outer tank body barrel body (6) is provided with threads, and the second top cover (8) is connected with the outer tank body barrel body (6) through the threads.
4. A container for storing a plutonium solution sample according to claim 3, characterized in that: still including setting up second top cap (8) with annular sealed pad (7) between outer jar body stack shell (6), the material of sealed pad (7) is polytetrafluoroethylene, through second top cap (8) compress tightly sealed pad (7) are realized second top cap (8) with seal between outer jar body stack shell (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011161175.2A CN112599273B (en) | 2020-10-27 | 2020-10-27 | Container for storing plutonium solution sample |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011161175.2A CN112599273B (en) | 2020-10-27 | 2020-10-27 | Container for storing plutonium solution sample |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112599273A CN112599273A (en) | 2021-04-02 |
| CN112599273B true CN112599273B (en) | 2023-03-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011161175.2A Active CN112599273B (en) | 2020-10-27 | 2020-10-27 | Container for storing plutonium solution sample |
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| CN (1) | CN112599273B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB814257A (en) * | 1956-01-12 | 1959-06-03 | British Insulated Callenders | Improvements in or relating to sealing ends for electric cables |
| US3982134A (en) * | 1974-03-01 | 1976-09-21 | Housholder William R | Shipping container for nuclear fuels |
| US4836975A (en) * | 1986-11-13 | 1989-06-06 | Alkem Gmbh | Container, in particular for a radioactive substance |
| JPH10332893A (en) * | 1997-05-27 | 1998-12-18 | Ishikawajima Harima Heavy Ind Co Ltd | Overpack structure |
| JP2002174693A (en) * | 2000-12-07 | 2002-06-21 | Mitsubishi Heavy Ind Ltd | Container for transporting radioactive material |
| EP1600982A2 (en) * | 2004-05-19 | 2005-11-30 | Framatome ANP GmbH | Container and process for gastight encapsulation of a radioactive object |
| JP2016180593A (en) * | 2015-03-23 | 2016-10-13 | 国立研究開発法人 海上・港湾・航空技術研究所 | Molten nuclear fuel storage container |
| CN108962414A (en) * | 2018-06-15 | 2018-12-07 | 中国核电工程有限公司 | A kind of plutonium solution basin |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20030165649A1 (en) * | 2001-06-06 | 2003-09-04 | Morris Reich | Repository disposal container |
| ES2928955T3 (en) * | 2014-10-06 | 2022-11-23 | Lantheus Medical Imaging Inc | Sealing container and method of use |
-
2020
- 2020-10-27 CN CN202011161175.2A patent/CN112599273B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB814257A (en) * | 1956-01-12 | 1959-06-03 | British Insulated Callenders | Improvements in or relating to sealing ends for electric cables |
| US3982134A (en) * | 1974-03-01 | 1976-09-21 | Housholder William R | Shipping container for nuclear fuels |
| US4836975A (en) * | 1986-11-13 | 1989-06-06 | Alkem Gmbh | Container, in particular for a radioactive substance |
| JPH10332893A (en) * | 1997-05-27 | 1998-12-18 | Ishikawajima Harima Heavy Ind Co Ltd | Overpack structure |
| JP2002174693A (en) * | 2000-12-07 | 2002-06-21 | Mitsubishi Heavy Ind Ltd | Container for transporting radioactive material |
| EP1600982A2 (en) * | 2004-05-19 | 2005-11-30 | Framatome ANP GmbH | Container and process for gastight encapsulation of a radioactive object |
| JP2016180593A (en) * | 2015-03-23 | 2016-10-13 | 国立研究開発法人 海上・港湾・航空技術研究所 | Molten nuclear fuel storage container |
| CN108962414A (en) * | 2018-06-15 | 2018-12-07 | 中国核电工程有限公司 | A kind of plutonium solution basin |
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| CN112599273A (en) | 2021-04-02 |
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