CN207704875U - A kind of special storage container of safety-type spentnuclear fuel - Google Patents
A kind of special storage container of safety-type spentnuclear fuel Download PDFInfo
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- CN207704875U CN207704875U CN201820139267.2U CN201820139267U CN207704875U CN 207704875 U CN207704875 U CN 207704875U CN 201820139267 U CN201820139267 U CN 201820139267U CN 207704875 U CN207704875 U CN 207704875U
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- reservoir
- demarcation strip
- safety
- neutron poison
- storage cell
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Abstract
A kind of safety-type special storage container of spentnuclear fuel of the utility model, including four reservoir modules, four reservoir modules are distributed in sphere of movements for the elephants shape；Reservoir module is internally provided with demarcation strip, and demarcation strip is by reservoir module inside points every in the identical storage cell of two sizes, and storage cell is in the cavity of triangular prism structure, and the bottom for storing cell is provided with venthole；Demarcation strip is internally provided with two neutron poison placing grooves, and one block of neutron poison plate is placed in neutron poison placing groove；The reinforcing plate being made of reinforcement steel is both provided with inside four cycle side plate of reservoir module, storage cell uses the cavity of triangular prism structure, and section is in isosceles right triangle, its stability is high, can long time stored spentnuclear fuel while, avoid shaking caused damage, safety coefficient is high.And reservoir module surrounding interior inlays and secures the reinforcing plate that polylith is made of reinforcement steel, load-carrying properties are strong, and shock resistance is high, has a safety feature, and reliability is high.
Description
Technical field
The utility model is related to a kind of transport case, specifically a kind of special storage container of safety-type spentnuclear fuel.
Background technology
Spentnuclear fuel is also known as rradiated nuclear fuel, is to live through radiation exposure, used nuclear fuel, typically by nuclear power station
Nuclear reactor generates.In heap through neutron bombardment nuclear reaction occurs for nuclear fuel, is drawn off out of heap through certain time.It contains largely
It is unspent can fertile material uranium -238 or thorium -232, easy fissioner plutonium -239 do not burn down and newly-generated, uranium -235 or
The transuranic elements such as neptunium, americium, curium that uranium -233 and nuclear fuel generate in irradiation process, in addition also fission element Strontium-90,
Caesium -137, technetium -99 etc..The uranium content of this fuel reduces, and nuclear reaction can not be continued to, so being spentnuclear fuel.Spent fuel
In include a large amount of radioactive element, therefore can seriously affect environment if do not dealt carefully with and connect with radioactivity
Touch the health of their people.
The irradiated fuel assembly drawn off from reactor is generally stored in the spent fuel storage rack of Spent fuel pit.This
A little screen works are usually the rigid structure by certain regularly arranged several storage cavities composition.Each cavity is that can store
The storage cell of fuel assembly.Subcritical safety when stored condition intensive for guarantee fuel assembly, storing small interior includes
Neutron poison material.
Current storage screen work there are the shortcomings that it is as follows：1, storage cell be square mostly, regular polygon or circle,
Stability is often not high enough, long time stored spentnuclear fuel, once earthquake or operational vibrations occur, is easy to happen damage, pacifies
Overall coefficient is low.2, the neutron poison material stored in cell is fixed on chamber mostly, cannot dismantle, neutron poison material one
Denier, which is damaged, to be replaced, and service efficiency is not high.
Utility model content
The utility model proposes a kind of special storage container of safety-type spentnuclear fuel regarding to the issue above.
Specific technical solution is as follows：
A kind of special storage container of safety-type spentnuclear fuel, which is characterized in that including four reservoir modules, four storages
Module is in rectangular parallelepiped structure, and four reservoir modules are by being welded to connect integrated structure, four reservoir modules
Size, shape, structure all same；Four reservoir modules are distributed in sphere of movements for the elephants shape；
The reservoir module is internally provided with demarcation strip, and the demarcation strip is an integral structure with the reservoir module, institute
It states demarcation strip inside the reservoir module to be arranged in diagonal line, the demarcation strip is by reservoir module inside points every in two sizes
Identical storage cell, the storage cell are in the cavity of triangular prism structure, and the bottom of the storage cell is provided with venthole；
The number of air hole is 4, is followed successively by the first venthole, the second venthole, third venthole and four-way from large to small
Stomata, four ventholes are waist-shaped hole, and four ventholes are evenly distributed in the storage cell bottom；
The demarcation strip is internally provided with two neutron poison placing grooves, and the neutron poison placing groove is square groove body,
One block of neutron poison plate is placed in the neutron poison placing groove；
The reinforcing plate being made of reinforcement steel is both provided with inside four cycle side plate of the reservoir module, the reinforcing plate is square
Plate body structure, quantity of the reinforcing plate on each side plate of reservoir module are two, are evenly distributed.
Further, the storage cell section is isosceles right triangle.
Further, the neutron poison plate shape is square plate body structure.
Further, the demarcation strip is square plate body structure.
The beneficial effects of the utility model are：
1, storage cell uses the cavity of triangular prism structure, and section is in isosceles right triangle, and stability is high, can
While long time stored spentnuclear fuel, avoid shaking caused damage, safety coefficient is high.And reservoir module surrounding interior is inlayed
The embedding reinforcing plate for securing polylith and being made of reinforcement steel, load-carrying properties are strong, and shock resistance is high, has a safety feature, and reliability is high；
2, the neutron poison material stored in cell is positioned in neutron poison placing groove, accomplishes detachable, neutron poison
Material, which is once damaged, to be replaced in time, and service efficiency is high.Demarcation strip is between two storage cells, neutron poison plate
In being positioned over, there is the ability of preferable capture neutron, ensure subcritical safety when intensive stored condition；
3, bottom uses the venthole that multiple waist-shaped holes are constituted, and can effectively carry out spentnuclear fuel preheating and radiate, improve peace
Overall coefficient.
Description of the drawings
Fig. 1 is the utility model vertical view.
Fig. 2 is the utility model front view.
Fig. 3 is the utility model upward view.
Fig. 4 is the utility model sectional view along A-A.
Specific implementation mode
It is clear to make the technical solution of the utility model be more clear, the utility model is described further below,
Any technical characteristic to technical solutions of the utility model carries out the scheme that equivalencing is obtained with conventional reasoning and each falls within this reality
With novel protected range.Being fixedly connected mentioned in the utility model, fixed setting are the general connection in machinery field
Mode, welding, gluing, bolt and nut connection and screw connection.
Reference sign
Reservoir module 1, demarcation strip 2, storage cell 3, venthole 4, the first venthole 41, the second venthole 42, third are logical
Stomata 43, the 4th venthole 44, neutron poison placing groove 5, neutron poison plate 6, reinforcing plate 7.
A kind of special storage container of safety-type spentnuclear fuel, which is characterized in that including four reservoir modules, four storages
Module is in rectangular parallelepiped structure, and four reservoir modules are by being welded to connect integrated structure, four reservoir modules
Size, shape, structure all same；Four reservoir modules are distributed in sphere of movements for the elephants shape；
The reservoir module is internally provided with demarcation strip, and the demarcation strip is an integral structure with the reservoir module, institute
It states demarcation strip inside the reservoir module to be arranged in diagonal line, the demarcation strip is by reservoir module inside points every in two sizes
Identical storage cell, the storage cell are in the cavity of triangular prism structure, and the bottom of the storage cell is provided with venthole；
The number of air hole is 4, is followed successively by the first venthole, the second venthole, third venthole and four-way from large to small
Stomata, four ventholes are waist-shaped hole, and four ventholes are evenly distributed in the storage cell bottom；
The demarcation strip is internally provided with two neutron poison placing grooves, and the neutron poison placing groove is square groove body,
One block of neutron poison plate is placed in the neutron poison placing groove；
The reinforcing plate being made of reinforcement steel is both provided with inside four cycle side plate of the reservoir module, the reinforcing plate is square
Plate body structure, quantity of the reinforcing plate on each side plate of reservoir module are two, are evenly distributed.
Further, the storage cell section is isosceles right triangle.
Further, the neutron poison plate shape is square plate body structure.
Further, the demarcation strip is square plate body structure.
The beneficial effects of the utility model are：
1, storage cell uses the cavity of triangular prism structure, and section is in isosceles right triangle, and stability is high, can
While long time stored spentnuclear fuel, avoid shaking caused damage, safety coefficient is high.And reservoir module surrounding interior is inlayed
The embedding reinforcing plate for securing polylith and being made of reinforcement steel, load-carrying properties are strong, and shock resistance is high, has a safety feature, and reliability is high；
2, the neutron poison material stored in cell is positioned in neutron poison placing groove, accomplishes detachable, neutron poison
Material, which is once damaged, to be replaced in time, and service efficiency is high.Demarcation strip is between two storage cells, neutron poison plate
In being positioned over, there is the ability of preferable capture neutron, ensure subcritical safety when intensive stored condition；
3, bottom uses the venthole that multiple waist-shaped holes are constituted, and can effectively carry out spentnuclear fuel preheating and radiate, improve peace
Overall coefficient.
Claims (4)
1. a kind of special storage container of safety-type spentnuclear fuel, which is characterized in that including four reservoir modules, four storages mould
Block is in rectangular parallelepiped structure, and for four reservoir modules by being welded to connect integrated structure, four reservoir modules are big
Small, shape, structure all same；Four reservoir modules are distributed in sphere of movements for the elephants shape；
The reservoir module is internally provided with demarcation strip, and the demarcation strip is an integral structure with the reservoir module, described point
Partition board is arranged inside the reservoir module in diagonal line, and the demarcation strip is by reservoir module inside points every identical in two sizes
Storage cell, it is described storage cell be in triangular prism structure cavity, it is described storage cell bottom be provided with venthole；It is described
Number of air hole is 4, is followed successively by the first venthole, the second venthole, third venthole and the 4th venthole from large to small,
Four ventholes are waist-shaped hole, and four ventholes are evenly distributed in the storage cell bottom；
The demarcation strip is internally provided with two neutron poison placing grooves, and the neutron poison placing groove is square groove body, described
One block of neutron poison plate is placed in neutron poison placing groove；
It is both provided with the reinforcing plate being made of reinforcement steel inside four cycle side plate of the reservoir module, the reinforcing plate is square plate body
Structure, quantity of the reinforcing plate on each side plate of reservoir module are two, are evenly distributed.
2. a kind of safety-type special storage container of spentnuclear fuel as described in claim 1, it is characterized in that, the storage cell section
For isosceles right triangle.
3. a kind of safety-type special storage container of spentnuclear fuel as described in claim 1, it is characterized in that, the neutron poison plate shape
Shape is square plate body structure.
4. a kind of safety-type special storage container of spentnuclear fuel as described in claim 1, it is characterized in that, the demarcation strip is square
Plate body structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820139267.2U CN207704875U (en) | 2018-01-27 | 2018-01-27 | A kind of special storage container of safety-type spentnuclear fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820139267.2U CN207704875U (en) | 2018-01-27 | 2018-01-27 | A kind of special storage container of safety-type spentnuclear fuel |
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| Publication Number | Publication Date |
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| CN207704875U true CN207704875U (en) | 2018-08-07 |
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| CN201820139267.2U Active CN207704875U (en) | 2018-01-27 | 2018-01-27 | A kind of special storage container of safety-type spentnuclear fuel |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243645A (en) * | 2018-09-13 | 2019-01-18 | 中国核动力研究设计院 | A kind of irradiated fuel assembly storage screen work |
| CN110164576A (en) * | 2019-05-17 | 2019-08-23 | 中国核电工程有限公司 | A kind of split type tube bank slot |
| CN113972022A (en) * | 2021-09-09 | 2022-01-25 | 清华大学 | Method and equipment for transporting nuclear fuel of nuclear power station |
-
2018
- 2018-01-27 CN CN201820139267.2U patent/CN207704875U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109243645A (en) * | 2018-09-13 | 2019-01-18 | 中国核动力研究设计院 | A kind of irradiated fuel assembly storage screen work |
| CN109243645B (en) * | 2018-09-13 | 2022-03-01 | 中国核动力研究设计院 | Spent fuel assembly storage grillwork |
| CN110164576A (en) * | 2019-05-17 | 2019-08-23 | 中国核电工程有限公司 | A kind of split type tube bank slot |
| CN113972022A (en) * | 2021-09-09 | 2022-01-25 | 清华大学 | Method and equipment for transporting nuclear fuel of nuclear power station |
| CN113972022B (en) * | 2021-09-09 | 2023-10-31 | 清华大学 | Method and equipment for transporting nuclear fuel of nuclear power station |
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