CN109727697B - High-radioactivity waste receiving device - Google Patents
High-radioactivity waste receiving device Download PDFInfo
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- CN109727697B CN109727697B CN201711042061.4A CN201711042061A CN109727697B CN 109727697 B CN109727697 B CN 109727697B CN 201711042061 A CN201711042061 A CN 201711042061A CN 109727697 B CN109727697 B CN 109727697B
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- waste
- handle tool
- long handle
- waste receiving
- bin
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- 239000002699 waste material Substances 0.000 title claims abstract description 159
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 42
- 239000010941 cobalt Substances 0.000 claims abstract description 42
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 42
- 239000002915 spent fuel radioactive waste Substances 0.000 claims abstract description 5
- 239000002927 high level radioactive waste Substances 0.000 claims description 13
- 239000010963 304 stainless steel Substances 0.000 claims description 3
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 claims 4
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000002901 radioactive waste Substances 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 abstract 1
- GUTLYIVDDKVIGB-OUBTZVSYSA-N Cobalt-60 Chemical compound [60Co] GUTLYIVDDKVIGB-OUBTZVSYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-ZSJDYOACSA-N Heavy water Chemical compound [2H]O[2H] XLYOFNOQVPJJNP-ZSJDYOACSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- GUTLYIVDDKVIGB-IGMARMGPSA-N cobalt-59 atom Chemical compound [59Co] GUTLYIVDDKVIGB-IGMARMGPSA-N 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Abstract
The invention belongs to the technical field of high-radioactivity waste storage, in particular relates to a high-radioactivity waste receiving device, and aims to develop a set of high-radioactivity waste generated during cobalt isotope production and safely place the corresponding high-radioactivity waste in a waste receiving cylinder of a spent fuel pool receiving device when abnormal conditions occur, so that operators and normal production of cobalt isotopes are effectively protected. The method is characterized in that: the device comprises a long handle tool A, a waste box, a clamping box bottom plate, a waste receiving cylinder, a lifting ring, a bracket, a long handle tool B, a guide sleeve and a stud. The high radioactive waste receiving device disclosed by the invention is safe and reliable, convenient to use, high in stability and high in economic benefit, reduces operation risks, avoids risks of accidental dose irradiation received by staff, ensures the safety of the staff, meets the requirements of production of cobalt isotopes in the whole service life of a power station, and creates the advanced level of similar high radioactive waste storage equipment of the same power station at home and abroad.
Description
Technical Field
The invention belongs to the technical field of high-radioactivity waste storage, and particularly relates to a high-radioactivity waste receiving device.
Background
In addition to normal power generation, the two heavy water reactor units for Qinshan nuclear power can also produce cobalt isotopes, namely, when the unit is planned to stop the reactor, cobalt 59 cake pieces are loaded into the reactor, when the unit is planned to stop the reactor in the next operation period, cobalt 60 which is received and irradiated in one period is discharged, after the cobalt 60 is discharged, the cobalt 60 is treated by underwater production equipment and then is sold at a corresponding destination, but after the underwater production, the finished product is discharged without problems, but also corresponding high-radiation wastes cannot be discharged, such as cobalt rod locking nuts, upper and lower fixing plates of a rod bundle and the like, and meanwhile, the locking nuts can possibly be deformed after the irradiation of the reactor, cannot be freely separated from a disassembly tool and the like.
Disclosure of Invention
The invention aims to develop a set of high-radioactivity waste generated during the cobalt isotope production and safely place the corresponding high-radioactivity waste in the waste receiving cylinder of the spent fuel pool receiving device when abnormal conditions occur, thereby effectively protecting operators and normally producing cobalt isotopes.
The invention is realized in the following way:
a high-radioactivity waste receiving device comprises a long handle tool A, a waste box, a clamping box bottom plate, a waste receiving cylinder, a hoisting ring, a bracket, a long handle tool B, a guide sleeve and a stud; the long handle tool A is arranged at one end of the waste bin and is used for driving the waste bin to move and controlling the opening and closing of the waste bin; the waste bin is arranged on the bottom plate of the clamping box and is used for containing high-level waste; the bottom plate of the clamping box is fixed inside the waste receiving cylinder and is used for supporting the waste box; the waste receiving cylinder is arranged on the bracket and is used for collecting high-level waste; the lifting ring is fixed on the outer wall of the waste receiving cylinder and is used for lifting, draining and transferring the waste receiving cylinder; the bracket is fixed in the spent fuel pool and is used for supporting the waste receiving cylinder; the long handle tool B is positioned above the waste bin and is used for removing the cobalt rod lock nut; the stud is fixed on the round opening connecting rib above the waste receiving cylinder and is used for placing the cobalt rod locking nut; the guide sleeve is arranged on the outer ring of the stud and used for guiding the cobalt rod locking nut.
The waste box is a hollow square body with an opening at the upper end, wherein the waste box body consists of four side surfaces which are welded together to form a square; the waste supporting plate is a bottom plate, and a cobalt rod nut leading-in hole is formed in the center of the waste supporting plate; the upper part of the left end of the left side surface of the waste box body is welded with a supporting lug, and a locking nut with an internal threaded hole is arranged in the waste box body and is used for screwing a long-handle tool A in; an extension plate is led out from the left end of the waste supporting plate and is connected with the waste supporting plate; the upper end of the extension plate is fixed with another locking nut with an internal threaded hole for screwing the long-handle tool A in; the two locking nuts on the left side of the left side panel of the waste box body are on the same line in the vertical direction, and the threads of the internal threaded holes are matched with the external threads at the bottom of the long-handle tool A of the long-rod tool; the right end of the waste supporting plate is movably connected with the lower end of the right side surface of the waste box body through a hinge, and the waste supporting plate rotates by taking the hinge as a circle center; when the long-handle tool A passes through the two locking nuts from top to bottom and is screwed down, the waste supporting plate and the tetrahedron of the waste box body are closed together to form a complete pentahedron, so that the waste box is formed; after the long handle tool A rotates anticlockwise for a certain number of turns, the lower end of the long handle tool A is separated from the locking nut on the extension plate, the long handle tool A is lifted upwards, the waste supporting plate is opened under the action of the hinge, and high-level waste in the box falls into the waste receiving cylinder.
The two clamping box side plates are arranged in parallel along the horizontal direction, the left end of the clamping box side plate is fixed on the inner wall of the waste receiving cylinder, and the right end of the clamping box side plate is fixed on the upper part of the waste receiving cylinder; the two clamping box bottom plates are arranged in parallel along the horizontal direction and welded between the two clamping box side plates and are perpendicular to the clamping box side plates; the bottom plate and the side plates jointly support the waste bin.
The waste receiving cylinder is in a hollow cylinder shape with an opening at the upper end, and a round-mouth connecting rib is arranged at the center of the upper end face; the left end of the round opening connecting rib is fixedly connected with the side plate of the clamping box, and the right end is fixedly connected with the guide sleeve and the stud.
The positions of the guide sleeve and the stud are symmetrical with the positions of the side plates of the clamping box along the center line of the circular opening connecting rib of the waste receiving cylinder.
The long handle tool a as described above is generally cylindrical in shape, and is provided with an operating handle in the upper portion in the horizontal direction and an external thread in the lower portion for connecting two lock nuts.
The long handle tool B is integrally in a cylindrical rod shape, the upper part of the long handle tool B is provided with an operating handle along the horizontal direction, the lower end of the long handle tool B is provided with a nut hole, the shape of the long handle tool B is matched with that of the cobalt rod locking nut, and the long handle tool B is used for taking out the cobalt rod locking nut.
The long handle tool A, the waste bin, the clamping box bottom plate, the waste receiving cylinder, the lifting ring, the bracket, the long handle tool B, the guide sleeve and the stud are all made of 304 stainless steel materials.
The beneficial effects of the invention are as follows:
the high radioactive waste receiving device disclosed by the invention is safe and reliable, convenient to use, high in stability and high in economic benefit, reduces operation risks, avoids risks of accidental dose irradiation received by staff, ensures the safety of the staff, meets the requirements of production of cobalt isotopes in the whole service life of a power station, and creates the advanced level of similar high radioactive waste storage equipment of the same power station at home and abroad.
Drawings
FIG. 1 is a schematic view of a high emissivity waste receiving device of the present invention;
FIG. 2 is a schematic view of the construction of a waste bin of a high radioactivity waste receiving device of the present invention;
FIG. 3 is a P-view of FIG. 2;
FIG. 4 is a schematic view of the construction of a long rod tool A of the high radioactive waste receiving apparatus of the present invention;
fig. 5 is a schematic structural view of a long rod tool B of a high radioactive waste receiving apparatus of the present invention.
Wherein: 1. long handle tool A,2, waste bin, 3, bottom plate of clamping box, 4, waste receiving tube, 5, lifting ring, 6, bracket, 7, long handle tool B,8, cobalt rod locking nut, 9, guide sleeve, 10, stud, 11, support lug, 12, high level waste, 13, waste bin, 14, locking nut, 15, extension plate, 16, cobalt rod nut leading hole, 17, waste pallet, 18, hinge, 19, side plate of clamping box.
Detailed Description
The invention is further described below with reference to the drawings and examples.
As shown in fig. 1, a high-radioactivity waste receiving device comprises a long handle tool A1, a waste bin 2, a bin bottom plate 3, a waste receiving cylinder 4, a lifting ring 5, a bracket 6, a long handle tool B7, a guide sleeve 9 and a stud 10. The long handle tool A1 is arranged at one end of the waste bin 2 and is used for driving the waste bin 2 to move and controlling the opening and closing of the waste bin 2. The waste bin 2 is placed on the bin floor 3 for holding high level waste 12. The cassette floor 3 is fixed inside the waste receiving canister 4 for supporting the waste cassette 2. The waste receiving canister 4 is placed on the stand 6 for collecting high level waste 12. The lifting ring 5 is fixed on the outer wall of the waste receiving canister 4 for lifting and transferring the waste receiving canister 4. A bracket 6 is fixed in the spent fuel pool for supporting the waste receiving canister 4. A long handled tool B7 is located above the waste bin 2 for removing the cobalt rod lock nut 8. The stud 10 is fixed on a round opening joint rib above the waste receiving cylinder 4 and is used for placing the cobalt rod locking nut 8. The guide sleeve 9 is arranged on the outer ring of the stud 10 and is used for guiding the cobalt rod locking nut 8.
As shown in fig. 2 and 3, the waste bin 2 is a hollow square body with an open upper end as a whole, wherein the waste bin body 13 is composed of four sides which are welded together to form a square shape. The waste pallet 17 is a bottom plate, and a cobalt rod nut introduction hole 16 is formed in the center. The upper part of the left end of the left side surface of the waste box body 13 is welded with a supporting lug 11, and a locking nut with an internal threaded hole is arranged in the waste box body for screwing the long handle tool A1. An extension plate 15 is led from the waste pallet 17 to the left end, the extension plate 15 being connected to the waste pallet 17. Another locking nut 14 with an internally threaded hole is fixed to the upper end of the extension plate 15 for the long handled tool A1 to be screwed in. The two locking nuts on the left side of the left side panel of the waste box body 13 are on the same line in the vertical direction, and the threads of the internal threaded holes are matched with the external threads on the bottom of the long-handle tool A1 of the long-rod tool. The right end of the waste supporting plate 17 is movably connected with the lower end of the right side surface of the waste box body 13 through a hinge 18, and the waste supporting plate 17 rotates by taking the hinge 18 as the circle center. When the long handle tool A1 passes through the two locking nuts from top to bottom and is screwed down, the waste supporting plate 17 and the waste box body 13 are tetrahedrally closed together to form a complete pentahedron, and the waste box 2 is formed. After the long handle tool A1 rotates anticlockwise for a certain number of turns, the lower end of the long handle tool A1 is separated from the locking nut 14 on the extension plate 15, the long handle tool A1 is lifted upwards, the waste supporting plate 17 is opened under the action of the hinge 18, and the high-level waste 12 in the box falls into the waste receiving cylinder 4.
As shown in fig. 2 and 3, the two cassette side plates 19 are arranged in parallel in the horizontal direction, the left end is fixed to the inner wall of the waste receiving canister 4, and the right end is fixed to the upper portion of the waste receiving canister 4. The two clamping box bottom plates 3 are arranged in parallel along the horizontal direction and welded between the two clamping box side plates 19 and are perpendicular to the clamping box side plates 19. The cassette bottom plate 3 and the cassette side plates 19 together realize a support for the waste cassette 2.
The waste receiving cylinder 4 is a hollow cylinder with an open upper end, and a round opening connecting rib is arranged at the center of the upper end surface. The left end of the round opening connecting rib is fixedly connected with the clamping box side plate 19, and the right end is fixedly connected with the guide sleeve 9 and the stud 10.
The positions of the guide sleeve 9 and the stud 10 and the position of the side plate 19 of the clamping box are symmetrical along the center line of the circular opening connecting rib of the waste receiving cylinder 4.
As shown in fig. 4, the long-handled tool A1 has a cylindrical rod shape as a whole, an operation handle is provided at an upper portion in a horizontal direction, and an external thread is provided at a lower portion for connecting two lock nuts.
As shown in fig. 5, the long handle tool B7 is in a cylindrical rod shape, the upper part is provided with an operation handle along the horizontal direction, the lower end is provided with a nut hole, and the shape of the long handle tool B is matched with that of the cobalt rod locking nut 8 for taking out the cobalt rod locking nut 8. The shape of the lower end of the long handled tool B7 can be adjusted according to the shape of the different kinds of high level waste 12 to be taken out, including but not limited to the cobalt rod lock nut 8.
In this embodiment, the long handled tool A1, the waste bin 2, the bin floor 3, the waste receiving canister 4, the lifting ring 5, the bracket 6, the long handled tool B7, the guide sleeve 9 and the stud 10 are all made of 304 stainless steel materials.
The working principle of the invention is as follows:
1. the long handle tool A1 and the connected waste bin 2 are positioned on the mechanism above the cobalt rod bundle to be disassembled, the cobalt rod bundle is lifted upwards by the corresponding mechanism, the cobalt rod locking nut 8 just passes through the cobalt rod nut leading-in hole 16 in the center of the waste bin 2 waste supporting plate 17, and the cobalt rod bundle is arranged in the waste bin 2 through the head.
2. The long handle tool B7 is put in place above the cobalt rod locking nut 8, the cobalt rod locking nut 8 or other high level waste 12 is screwed out, and the long handle tool B7 is lifted. If the cobalt rod lock nut 8 is not deformed, the cobalt rod bundle pressing plate falls into the waste bin 2, and meanwhile, the cobalt rod bundle pressing plate also falls into the waste bin 2. If the cobalt rod lock nut 8 is deformed and cannot fall, the long handle tool B7 is moved above the waste receiving cylinder 4, the long handle tool B7 enters the alignment stud 10 along the guide sleeve 9, the long handle tool B7 is rotated, the cobalt rod lock nut 8 is screwed into the stud 10, the long handle tool B7 is lifted, and the cobalt rod lock nut 8 is separated from the long handle tool B7 and remains on the stud 10.
3. The long handled tool A1 with the waste bin 2 is moved over the waste receiving canister 4 and is positioned on the bin floor 3 along the bin side panels 19, thereby clamping the waste bin 2.
4. After rotating the long handled tool A1 counterclockwise by 22 turns, the lock nut 14 on the extension plate 15 is separated from the long handled tool A1. By lifting the long handled tool A1 upward, the waste pallet 17 is tilted to an open state by the hinge 18, and the high level waste 12 falls into the waste receiving canister.
5. After the high level waste 12 falls into the waste receiving drum 4, the long handle tool A1 is lowered, the waste pallet 17 is slowly combined with the waste bin 13 due to the support of the bin bottom plate 3, and after the long handle tool A1 is completely lowered into place, the waste pallet 17 is completely combined with the waste bin 13. The long-handled tool A1 is rotated clockwise for 22 turns, the long-handled tool A1 is completely inserted into the lock nut 14 of the extension plate 15, the long-handled tool A1 is moved to a predetermined position, and the next bundle operation is performed, so that the pushing cycle is performed.
6. And (5) moving the long handle tool B7 to a corresponding station to be in position.
The embodiment of the present invention has been described in detail with reference to the embodiments, but the present invention is not limited to the embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention. The invention may be practiced otherwise than as specifically described in the specification.
Claims (8)
1. A high emissivity waste receiving device, characterized by: the device comprises a long handle tool A (1), a waste bin (2), a bin bottom plate (3), a waste receiving cylinder (4), a lifting ring (5), a bracket (6), a long handle tool B (7), a guide sleeve (9) and a stud (10); the long handle tool A (1) is arranged at one end of the waste bin (2) and is used for driving the waste bin (2) to move and controlling the opening and closing of the waste bin (2); the waste bin (2) is arranged on the bottom plate (3) of the card bin and is used for containing high-level waste (12); the clamping box bottom plate (3) is fixed inside the waste receiving cylinder (4) and is used for supporting the waste box (2); the waste receiving cylinder (4) is arranged on the bracket (6) and is used for collecting high-level waste (12); the lifting ring (5) is fixed on the outer wall of the waste receiving cylinder (4) and is used for lifting, launching and transferring the waste receiving cylinder (4); the bracket (6) is fixed in the spent fuel pool and is used for supporting the waste receiving cylinder (4); the long handle tool B (7) is positioned above the waste bin (2) and is used for removing the cobalt rod locking nut (8); the stud (10) is fixed on a round opening joint rib above the waste receiving cylinder (4) and is used for placing a cobalt rod locking nut (8); the guide sleeve (9) is arranged on the outer ring of the stud (10) and used for guiding the cobalt rod locking nut (8).
2. The high activity waste receiving device of claim 1, wherein: the waste bin (2) is a hollow square body with an opening at the upper end, wherein the waste bin body (13) consists of four side surfaces, and the four side surfaces are welded together to form a square; the waste supporting plate (17) is a bottom plate, and a cobalt rod nut leading-in hole (16) is formed in the center position; the upper part of the left end of the left side surface of the waste box body (13) is welded with a supporting lug (11), and a locking nut with an internal threaded hole is arranged in the waste box body and is used for screwing in a long-handle tool A (1); an extension plate (15) is led out from the left end of the waste supporting plate (17), and the extension plate (15) is connected with the waste supporting plate (17); the upper end of the extension plate (15) is fixed with another locking nut (14) with an internal threaded hole for screwing the long-handle tool A (1); the two locking nuts on the left side of the left side panel of the waste box body (13) are on the same line in the vertical direction, and the threads of the internal threaded holes are matched with the external threads at the bottom of the long-handle tool A (1); the right end of the waste supporting plate (17) is movably connected with the lower end of the right side surface of the waste box body (13) through a hinge (18), and the waste supporting plate (17) rotates by taking the hinge (18) as a circle center; when the long-handle tool A (1) passes through the two locking nuts from top to bottom and is screwed down, the waste supporting plate (17) and the waste box body (13) are tetrahedrally closed together to form a complete pentahedron, so that the waste box (2) is formed.
3. The high activity waste receiving device of claim 1, wherein: the two clamping box side plates (19) are arranged in parallel along the horizontal direction, the left end of the clamping box side plates is fixed on the inner wall of the waste receiving cylinder (4), and the right end of the clamping box side plates is fixed on the upper part of the waste receiving cylinder (4); the two clamping box bottom plates (3) are arranged in parallel along the horizontal direction, welded between the two clamping box side plates (19) and perpendicular to the clamping box side plates (19); the clamping box bottom plate (3) and the clamping box side plate (19) jointly support the waste box (2).
4. A high activity waste receiving device according to claim 3, wherein: the waste receiving cylinder (4) is integrally hollow and cylindrical, the upper end of which is open, and a round-mouth connecting rib is arranged at the center of the upper end face; the left end of the round opening connecting rib is fixedly connected with the clamping box side plate (19), and the right end is fixedly connected with the guide sleeve (9) and the stud (10).
5. The high emissivity waste receiving device of claim 4, wherein: the positions of the guide sleeve (9) and the stud (10) and the position of the clamping box side plate (19) are symmetrical along the central line of the circular opening connecting rib of the waste receiving cylinder (4).
6. The high emissivity waste receiving device of claim 2, wherein: the long handle tool A (1) is in a cylindrical rod shape as a whole, an operation handle is arranged at the upper part of the long handle tool A along the horizontal direction, and external threads are arranged at the lower part of the long handle tool A and used for connecting two locking nuts.
7. The high emissivity waste receiving device of claim 2, wherein: the long handle tool B (7) is integrally in a cylindrical rod shape, the upper part of the long handle tool B is provided with an operating handle along the horizontal direction, the lower end of the long handle tool B is provided with a nut hole, the shape of the long handle tool B is matched with that of the cobalt rod locking nut (8), and the long handle tool B is used for taking out the cobalt rod locking nut (8).
8. The high activity waste receiving device of claim 1, wherein: the long handle tool A (1), the waste bin (2), the bin bottom plate (3), the waste receiving cylinder (4), the lifting ring (5), the bracket (6), the long handle tool B (7), the guide sleeve (9) and the stud (10) are all made of 304 stainless steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711042061.4A CN109727697B (en) | 2017-10-31 | 2017-10-31 | High-radioactivity waste receiving device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711042061.4A CN109727697B (en) | 2017-10-31 | 2017-10-31 | High-radioactivity waste receiving device |
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| Publication Number | Publication Date |
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| CN109727697A CN109727697A (en) | 2019-05-07 |
| CN109727697B true CN109727697B (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711042061.4A Active CN109727697B (en) | 2017-10-31 | 2017-10-31 | High-radioactivity waste receiving device |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108962417B (en) * | 2018-06-22 | 2020-02-21 | 中核核电运行管理有限公司 | Heavy water reactor cobalt isotope production method |
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| Publication number | Publication date |
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| CN109727697A (en) | 2019-05-07 |
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