CN108428483A - Spentnuclear fuel container for conveying - Google Patents
Spentnuclear fuel container for conveying Download PDFInfo
- Publication number
- CN108428483A CN108428483A CN201711065728.2A CN201711065728A CN108428483A CN 108428483 A CN108428483 A CN 108428483A CN 201711065728 A CN201711065728 A CN 201711065728A CN 108428483 A CN108428483 A CN 108428483A
- Authority
- CN
- China
- Prior art keywords
- cylinder
- conveying
- spentnuclear fuel
- fuel container
- outer housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002915 spent fuel radioactive waste Substances 0.000 title claims abstract description 89
- 238000007789 sealing Methods 0.000 claims description 43
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 31
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 229910052802 copper Inorganic materials 0.000 claims description 8
- 239000010949 copper Substances 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000005251 gamma ray Effects 0.000 claims description 5
- 238000005242 forging Methods 0.000 claims description 4
- 238000003825 pressing Methods 0.000 claims description 4
- 238000010276 construction Methods 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims description 3
- 230000005855 radiation Effects 0.000 abstract description 5
- 238000003860 storage Methods 0.000 description 14
- 239000000446 fuel Substances 0.000 description 13
- 230000002285 radioactive effect Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000011049 filling Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004992 fission Effects 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229920001967 Metal rubber Polymers 0.000 description 1
- 229910052770 Uranium Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003758 nuclear fuel Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000012857 radioactive material Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Classifications
-
- 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
-
- 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
-
- 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
- G21F5/08—Shock-absorbers, e.g. impact buffers for 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
- G21F5/10—Heat-removal systems, e.g. using circulating fluid or cooling fins
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- High Energy & Nuclear Physics (AREA)
- Packages (AREA)
- Stackable Containers (AREA)
Abstract
The present invention discloses a kind of spentnuclear fuel container for conveying, including cylinder, upper inner cover, outer housing, heat-conducting piece, upper outer seal and lower outer seal, and cylinder is in the hollow structure with opening, and inner barrel is equipped with lead layer；Upper inner cover, which is set on cylinder, is sealed opening；Outer housing is sheathed on outside cylinder in hollow tubular structure and forms ring cavity between cylinder；Heat-conducting piece, which is connected between outer housing and cylinder, is divided into a plurality of unit chambers, unit intracavitary to be filled with neutron absorbing layer ring cavity, and heat-conducting piece is formed by the metalwork superposition connection of at least two different thermal coefficients；Upper outer seal is sealed the upper opening of outer housing, and lower outer seal is sealed the under shed of outer housing.The present invention protects, and by the heat radiation protection of heat-conducting piece by the double shielding of cylinder, outer housing by the radiation protection of lead layer and neutron absorbing layer so that shield effectiveness of the present invention is good and safety and stability, can be used to transport but also be used to store.
Description
Technical field
The present invention relates to a kind of radioactive material shipping containers more particularly to a kind of for transporting and store the weary of spentnuclear fuel
Fuel transport storage container.
Background technology
Nuclear power station generates fission reaction by fuel assembly and generates electricity, after fission reaction carries out a period of time, with fuel
The consumption of uranium in stick, fuel assembly cannot be satisfied the power requirement in power station, it will are taken out from reactor core, become spentnuclear fuel.Weary combustion
Material is temporarily stored into nuclear power station spent fuel reservoir, and the capacity of Spent Fuel Pool is limited, needs to transport spentnuclear fuel before pond capacity saturation
Go out nuclear power station to be stored or post-processed.However, the place of subsequent storage or post-processing is far apart from nuclear power station, transport
Time is also very long, while being influenced by spentnuclear fuel post-processing technology, and the subsequent storage time is very long.Spentnuclear fuel belongs to high radioactivity object
Product, transport and storage are required for meeting the requirement of international regulations and national legislation, it is therefore desirable to be transported or be store using special container
It deposits.
Upgrade with the replacement of nuclear fuel, it is weary that the spent fuel transport container used now cannot exactly match novel high burnup
The transport requirement of fuel, and the present spent fuel transport container used of nuclear power station is all single function shipping container, it cannot be long-term
Storage of spent fuel cannot load high burnup irradiated fuel assembly and useful load is small.
Therefore, it can be used to transport the difunctional high burnup spent fuel transport container that can be used in storing again there is an urgent need for a kind of,
To promote the applicability and economy of spent fuel transport container.
Invention content
It covers that effect is good, safety and stability the purpose of the present invention is to provide one kind, and can be used to transport but also be used to store
Spentnuclear fuel container for conveying.
To achieve the above object, the present invention provides a kind of spentnuclear fuel container for conveying, including vessel, the container
Ontology includes：Cylinder, the cylinder are in the hollow structure with opening, and the hollow structure forms host cavity, spentnuclear fuel by
The opening enters in the host cavity, and the inner barrel is additionally provided with the gamma-ray lead layer of shielding；Upper inner cover, it is described on
Inner cover in be detachably arranged on the cylinder to it is described opening be sealed, in the upper inner cover through offer with
The stomata of the host cavity connection and water hole；Outer housing, the outer housing are in hollow tubular structure, and the outer housing is sheathed on
Outside the cylinder, ring cavity is formed between the outer housing and the cylinder；Heat-conducting piece, the heat-conducting piece are connected to the outer housing
Between the cylinder, the ring cavity is divided into the unit chamber of a plurality of sealings, the unit intracavitary to fill out by the heat-conducting piece
Filled with neutron absorbing layer, the heat-conducting piece is formed by the metalwork superposition connection of at least two different thermal coefficients；Upper covering
Lid, the upper outer seal is in that the upper opening being detachably arranged on the outer housing to the outer housing is sealed, described
Upper outer seal is located at the surface of the upper inner cover and is compressed with the upper inner cover；And lower outer seal, the lower outer seal
The under shed of the outer housing is sealed in being detachably arranged on the outer housing.
Preferably, the cylinder includes cylinder ontology and lower inner cover, the cylinder ontology in tubular construction, the lower inner cover
The lower end for being set to the cylinder ontology is sealed the under shed of the cylinder ontology.
Preferably, the cylinder ontology includes inner cylinder and outer barrel, the lead layer be set to the inner cylinder with it is described outer
Between cylinder.
Preferably, further include a top link, the top link be set to the upper inner cover, upper outer seal with
Between the cylinder, the upper inner cover is sealed the opening of the cylinder by the top link, described outer
Capping is sealed the upper opening of the outer housing by the top link；Upper inner cover is by top link to cylinder
The opening of body is sealed, and upper outer seal is sealed the upper opening of outer housing by top link, i.e., upper inner cover, on
Outer seal, cylinder and outer housing are connect with top link, and such four have a common connecting portion, each other
Between connection effect it is more preferable, it is also more tight to the sealing of the upper openings of cartridge openings and outer housing, so as to preferably ensure this
The safety of invention spentnuclear fuel container for conveying and stability.
Preferably, the top link has annular the first cylinder interconnecting piece protruded out and annular second cylinder connection
Portion forms toroidal cavity between the annular first cylinder interconnecting piece and the annular second cylinder interconnecting piece, and the lead layer is stretched
Enter in the toroidal cavity and seals；Setting toroidal cavity is stretched into for lead layer, can be increased the volume of lead layer, be enhanced the anti-spoke of container
Penetrate effect；In addition, during actual shipment stores, spentnuclear fuel self heat is excessively high, and the easy expanded by heating of lead layer, toroidal cavity is set
It sets for being stretched into when lead layer expanded by heating, avoids the excessive compression to cylinder, hold to extend spentnuclear fuel shipping storage of the present invention
The service life of device.
Preferably, the annular first cylinder interconnecting piece pressing on the upper open end of the inner cylinder in sealing, institute
State annular second cylinder interconnecting piece pressing on the upper open end of the outer barrel in sealing.
Preferably, the top link has the annular third interconnecting piece protruded out, the upper outer seal is in sealing
It presses on the annular third interconnecting piece.
Preferably, the upper outer seal is detachably connected with the annular third interconnecting piece.
Preferably, the junction of the upper outer seal and the annular third interconnecting piece is additionally provided with sealing ring；Setting sealing
Circle, the sealing performance of outer seal and top link in reinforcement so that upper outer seal to the sealing that is open on outer housing more
Tightly, safer.
Preferably, the top link is recessed to form an annular convex platform, the upper inner cover connects in dismountable sealing
It is connected on the annular convex platform.
Preferably, the upper inner cover is in removably to connect by bolt with the top link.
Preferably, the upper inner cover and the junction of the top link are equipped with sealing ring.
Preferably, the top link is forging structure.
Preferably, further including a trunnion, the trunnion is set to the outside of the top link in protrusion, and is located at
The upper outer seal to be connected and sealed with the outer housing between the upper outer seal and the outer housing；Trunnion and top
Portion's connector cooperates, and the dual-seal connection of outer seal and outer housing, reinforces spentnuclear fuel in shipping storage process in realization
In safety.
Preferably, one end of the trunnion is embedded in the top link, the other end of the trunnion protrudes out institute
It states top link and presses on the outer housing in sealing.
Preferably, the trunnion is in " ┤ " character form structure.
Preferably, being provided with neutron shield layer and gamma shielding layer in the upper inner cover；Neutron is set in upper inner cover
Shielded layer and gamma shielding layer ensure that staff is in during dismounting upper outer seal in safe dose of radiation.
Preferably, the upper inner cover offers a groove, the opening of the groove is towards the upper outer seal, in described
Sub- shielded layer and gamma shielding layer are contained in the groove.
Preferably, the opening of the corresponding groove is equipped with a cover board, will be contained in the groove by the cover board
The neutron shield layer and gamma shielding layer are sealed.
Preferably, further including being inserted into the stopple being sealed in the stomata and the water hole.
Preferably, the inner wall of the cylinder is equipped with the water pipe being connected to the water hole, the inner wall of the cylinder is equipped with
The tracheae being connected to the stomata.
Preferably, the heat-conducting piece is formed by a steel plate and copper coin superposition connection；Heat-conducting piece is folded by steel plate and copper coin
Connection is added to be formed, steel plate ensures that the welding performance of heat-conducting piece, copper coin enhance the heat dissipation performance of heat-conducting piece.
Preferably, the heat-conducting piece is formed by the steel plate and copper coin superposition explosion weldering.
Preferably, further including a bottom linker, the bottom linker is set to the cylinder and the lower outer seal
Between the cylinder and the lower outer seal are connected and sealed.
Preferably, the side of the bottom linker is tightly connected with the cylinder and the lower outer seal, the bottom
The other side of connector is tightly connected with the outer housing.
Preferably, being additionally provided with neutron shield layer and gamma shielding layer in the lower outer seal.
Preferably, further including top damper and lower part damper, the top damper is connect with the upper outer seal,
The lower part damper is connect with the lower outer seal；Top damper and lower part damper prevent impact pair in transportational process
The influence of irradiated fuel assembly in shipping container, ensure that the transportation safety of irradiated fuel assembly.
Compared with prior art, spentnuclear fuel container for conveying provided by the invention has cylinder in hollow structure, cylinder
External to be also arranged with outer housing, spentnuclear fuel is stored up by the opening of cylinder into its hollow structure memory, and the opening of cylinder is by one
Upper inner cover is sealed, and the upper opening of outer housing is sealed by outer seal on one, and the under shed of outer housing is by covering once
Lid sealing, so that the spentnuclear fuel in cylinder obtains double-deck seal protection so that spentnuclear fuel transport storage of the invention
It is more tight to deposit container sealing, it is safer, better assure that safety of the spentnuclear fuel in transportational process；Secondly, cylinder
It is internally provided with the gamma-ray lead layer of shielding, meets spentnuclear fuel container for conveying to radioactive shielding requirements；Moreover
Be provided with heat-conducting piece in the ring cavity formed between cylinder and outer housing, by the heat-conducting piece by ring cavity be divided into it is a plurality of mutually solely
The unit chamber of vertical sealing (i.e. closed), the filling of unit intracavitary absorbs the neutron absorbing layer of neutron, by heat-conducting piece effectively by cylinder
Internal heat transfer to outer housing is discharged, simultaneously because the heat-conducting piece of the present invention is by least two different thermal coefficients
Metalwork superposition connection is formed, and the heat that spentnuclear fuel generates can be exported container for conveying faster by the setting of heat-conducting piece, and
The superposition of at least two metals connects, and ensure that the stability of heat-conducting piece shape and the high efficiency of heat conductivility；Adjacent heat conduction
The setting of neutron absorbing layer between part make container for conveying to it is radioactive shielding more comprehensively, it is safer；The present invention provides
Spentnuclear fuel container for conveying heat conductivility it is more preferable, shielding properties is more preferable, disclosure satisfy that load high burnup (be more than
The shipping storage requirement of fuel assembly 45000MWD/TU)；Therefore, spentnuclear fuel container for conveying provided by the invention has
The characteristics of shield effectiveness is good and safety and stability, and can be used to transport but also be used to store, it is highly practical, make suitable for being widely popularized
With.
Description of the drawings
Fig. 1 is the structural schematic diagram of spentnuclear fuel container for conveying of the present invention.
Fig. 2 is the cross section structure schematic diagram of spentnuclear fuel container for conveying of the present invention.
Fig. 3 is the upper inner cover vertical view of spentnuclear fuel container for conveying of the present invention.
Fig. 4 is the upper inner cover cross section structure schematic diagram of spentnuclear fuel container for conveying of the present invention.
Fig. 5 is the enlarged structure schematic diagram of part A in Fig. 2.
Fig. 6 is the top link structural schematic diagram of spentnuclear fuel container for conveying of the present invention.
Fig. 7 is the heat-conducting piece structural schematic diagram of spentnuclear fuel container for conveying of the present invention.
Specific implementation mode
For the technical solution, construction feature, the technique effect realized that the present invention will be described in detail, below in conjunction with specific implementation
Mode simultaneously coordinates attached drawing to be explained in detail.
As shown in Figure 1, the spentnuclear fuel container for conveying 100 of the present invention, including vessel 1 and connected by bolt 4
In the top damper 2 and lower part damper 3 of 1 upper and lower end of vessel.Below continuing with Fig. 1-Fig. 7 to the weary of the present invention
Fuel transport storage container 100 is described in further detail：
As shown in Fig. 2, being equipped with hanging basket component 5, container in the vessel 1 of spentnuclear fuel container for conveying 100 of the present invention
Ontology 1 includes cylinder 11, and cylinder 11 is in the hollow structure with opening, and hollow structure forms host cavity 111, when coming into operation,
Hanging basket component 5 is positioned over by the opening of cylinder 11 in host cavity 111 first, then by spentnuclear fuel by the opening of cylinder 11
It is put into hanging basket component 5, the opening of cylinder 11 will be finally sealed using upper inner cover 12.
Continuing as shown in Fig. 2, specifically, cylinder 11 of the invention is internally provided with the gamma-ray lead layer 116 of shielding, with
Spentnuclear fuel container for conveying is met to radioactive shielding requirements, it is ensured that safety；The upper inner cover 12 of the present invention is in removable
That unloads is set on cylinder 11, is sealed with the opening to cylinder 11；It is also extended through in inner cover 12 on this and offers and accommodate
Chamber connection stomata 121 and water hole 122, the stomata 121 and 122 usual structure of water hole are identical with shape, stomata 121 be used for it is outer
To accommodating interacvity air-filling when the connection of boundary inflator pump so that the water in host cavity is discharged from water hole 122, water hole 122 be used for it is outer
To supplying water in host cavity when boundary's water pump connection so that the gas in receptacle is discharged from stomata 121；Spentnuclear fuel is by cylinder 11
The seal protection of first layer is realized with the cooperation of upper inner cover 12；In order to further improve the seal protection to spentnuclear fuel,
It is also arranged with an outer housing 13 in hollow tubular structure outside in cylinder 11, outer seal 17 is in be detachably arranged on one
The upper opening of outer housing 13 is sealed on outer housing 13, once outer seal 18 is equally in be detachably arranged in outer housing
The under shed of outer housing 13 is sealed on 13, and upper outer seal 17 be located at upper inner cover 12 surface and with upper interior envelope
Lid 12 compresses, and the outer housing 13 realizes the sealing to its hollow structure by upper outer seal 17 and lower outer seal 18, keeps its right
The cylinder 11 for being stored with spentnuclear fuel has carried out seal protection so that the present invention by outer housing 13 and upper outer seal 17 and under
The sealing of outer seal 18 has cooperatively formed the seal protection of the second layer；In addition, existing between the outer housing 13 and cylinder 11 of the present invention
Gap, the gap form a ring cavity 14, have been alternatively arranged heat-conducting piece 15 in ring cavity 14, heat-conducting piece 15 is connected to outer housing 13 and cylinder
Between body 11, ring cavity 14 is divided into the unit chamber 141 of a plurality of sealings, heat conduction is set between cylinder 11 and outer housing 13
Part can effectively discharge the heat transfer in cylinder 11 to outer housing 13, in order to preferably ensure leading for heat-conducting piece 15
Hot property, heat-conducting piece 15 are formed by connecting by the metalwork superposition of at least two different thermal coefficients, the superposition of at least two metals
Connection, it is ensured that the stability of heat-conducting piece shape and the high efficiency of heat conductivility, and spentnuclear fuel of the present invention in order to better improve
For container for conveying to the shielding properties of spentnuclear fuel, the closed cells chamber 141 of formation is interior to fill neutron absorbing layer 16, neutron-absorbing
Layer 16 setting make container for conveying to it is radioactive shielding more comprehensively, it is safer.
It is worth noting that, upper inner cover 12 in be detachably arranged on cylinder 11, upper outer seal 17 is in dismountable
On outer housing 13 and lower outer seal 18 is in removably on outer housing 13 by existing detachable structure
It realizes, such as bolt arrangement, buckle structure or latch structure, those skilled in the art are not necessarily to appoint according to the demand of actual conditions
What performing creative labour can select to be used in the above-mentioned dismantling connection mode referred to from existing detachable structure, herein not
Another one illustrates.
In the present embodiment, as shown in Fig. 2, specifically, cylinder 11 includes cylinder ontology 112 and lower inner cover 113, lower interior
The lower end that capping 113 is set to an ontology 112 is sealed the under shed of cylinder ontology 112, and sealed connection mode can be used solid
It connects or is detachably connected calmly, such as be welded to connect, be bolted, snapping connection connection side well known to those skilled in the art
Formula.Cylinder ontology 112 is in multilayer tubular structures, including inner cylinder 114 and outer barrel 115 and is set to inner cylinder 114 and outer barrel
The gamma-ray lead layer of shielding between 115 116.Lead layer 116 is set between inner cylinder 114 and outer barrel 115, is conducive to fix
The morphosis of lead layer 116 reinforces it to radioactive function of shielding.Referring to Fig. 2 to Fig. 4, the upper opening of cylinder 11 is by upper interior
Capping 12 is sealed, and upper inner cover 12 is in be detachably arranged on cylinder 11 to be sealed the opening of cylinder 11, in this reality
It applies in example, upper inner cover 12 is bolted mode and realizes that (specific connection type will be rear to the sealing that is open on cylinder 11
Face is described in detail).As shown in Figure 3, Figure 4, run through in upper inner cover 12 and offer the stomata 121 being connected to host cavity 111
With water hole 122, and the water pipe for being respectively equipped with the tracheae being connected to stomata 121 on 11 inner wall of cylinder and being connected to water hole 122.It should
Stomata 121 and 122 usual structure of water hole are identical with shape, when stomata 121 and tracheae are connected to for being connect with extraneous inflator pump pair
Accommodate interacvity air-filling so that the water in host cavity is discharged by water pipe from water hole 122, water hole 122 be connected to water pipe for
To supplying water in host cavity when extraneous water pump connection so that the gas in receptacle is discharged via tracheae from stomata 121.Stomata
121 and water hole 122 can meet the operations such as water-filling exhaust, inflatable drainage and vacuum drying.As shown in figure 4, stomata 121 and water hole
Stopple 127 is respectively equipped at 122, stopple 127 is used to adjust the folding condition of stomata 121 and water hole 122.Without using stomata
121 and when water hole 122, stomata 121 and water hole 122 can be blocked with stopple 127, the spentnuclear fuel inside cylinder 11 is fully sealed
In the host cavity 111 of cylinder 11.Continue as shown in figure 4, upper inner cover 12 is internally provided with neutron shield layer 123 and gamma shielding
Layer 124.Neutron shield layer 123 and gamma shielding layer 124 may be disposed at any position of inner cover 12.Specifically, in this implementation
In example, 12 top surface of upper inner cover is equipped with a groove 125, and the opening of groove 125 is located at upper towards upper outer seal 17, upper outer seal 17
It the surface of inner cover 12 and is compressed with upper inner cover 12, the neutron shield layer 123 inside upper inner cover 12 and gamma shielding layer 124
In groove 125.125 opening of groove is equipped with cover board 126, by the neutron shield layer 123 and gamma shielding inside inner cover 12
Layer 124 is enclosed in groove 125.Neutron shield layer and gamma shielding layer are set in upper inner cover, ensure that staff is dismantling
It is in safe dose of radiation during upper outer seal.
In conjunction with shown in Fig. 2 and Fig. 7, cylinder 11 is externally provided with an outer housing 13, and outer housing 13 is arranged in hollow tubular structure
In outside cylinder 11.Upper outer seal 17 is in that the upper opening being detachably arranged on outer housing 13 to outer housing 13 is sealed；Under
Outer seal 18 is in be detachably arranged on outer housing 13 to be sealed the under shed of outer housing 13.In the present embodiment, on
Outer seal 17 be bolted mode realize to be open on outer housing 13 sealing (specific connection type will carry out below it is detailed
It describes in detail bright).Ring cavity 14 is formed between outer housing 13 and cylinder 11, a heat-conducting piece 15 is equipped in ring cavity 14, and heat-conducting piece 15 is set
Container for conveying can be exported faster by the heat that spentnuclear fuel generates by setting.Heat-conducting piece 15 is connected to outer housing 13 and cylinder 11
Between, ring cavity 14 is divided into the unit chamber 141 of a plurality of sealings, 15 one end of heat-conducting piece are connect with outer barrel 115, the other end
It is connect with outer housing 13, heat-conducting piece 15 is alternatively arranged in the ring cavity 14 that outer barrel 115 is formed with outer housing 13, heat-conducting piece 15
Specific arrangement mode and number of permutations can be configured according to actual needs.It is filled with neutron absorbing layer 16 in unit chamber 141, leads
The setting of 15 neutron absorbing layers 16 of warmware make container for conveying to it is radioactive shielding more comprehensively, it is safer.Referring to figure
7, heat-conducting piece 15 is formed by the metalwork superposition connection of at least two different thermal coefficients, ensures the stabilization of 15 shape of heat-conducting piece
The high efficiency of property and heat conductivility.In the present embodiment, heat-conducting piece 15 is formed by steel plate and copper coin superposition connection, and passes through explosion
Weldering connection, steel plate ensure that the welding performance of heat-conducting piece 15, copper coin enhance the heat dissipation performance of heat-conducting piece 15.Heat-conducting piece 15 enhances storage
Safety and permanence of the container to spent fuel storage are deposited, transport requirement of the nuclear power station to high burnup component is met.
Next, upper inner cover 12, upper outer seal 17 and the connection type of cylinder 11 are described in detail.
In conjunction with shown in Fig. 2, Fig. 5 and Fig. 6, in the present embodiment, upper inner cover 12, upper outer seal 17 and cylinder 11 pass through top
Portion's connector 19 connects, and top link 19 is forging structure.Referring to Fig. 2, top link 19 be set to inner cover 12, on
Between outer seal 17 and cylinder 11, upper inner cover 17 is sealed the opening of cylinder 11 by top link 19, upper covering
Lid 17 is sealed the upper opening of outer housing 13 by top link 19.Referring to Fig. 5 and Fig. 6,19 inside of top link
Annular first cylinder interconnecting piece 191 is extended to form to 11 direction of cylinder, outer 11 direction of lateral cylinder of top link 19 extends
Form annular second cylinder interconnecting piece 192, shape between annular first cylinder interconnecting piece 191 and annular second cylinder interconnecting piece 192
Cavity 193 is circularized, toroidal cavity 193 is open towards lead layer 116, and lead layer 116 can be stretched into toroidal cavity 193 and be sealed.Its
In, annular first cylinder interconnecting piece 191 pressing on the upper open end of inner cylinder 114 in sealing, annular second cylinder connection
Portion 192 is pressed in sealing on the upper open end of outer barrel 115, and toroidal cavity 193 is located at right over lead layer 116, lead layer
116 stretch into toroidal cavity 193 and seal.The first cylinder interconnecting piece of annular 191 and inner cylinder 114 and annular second cylinder
The connection type of interconnecting piece 192 and outer barrel 115 is the sealed connection mode that those skilled in the art know.In the present embodiment
In, the upper open end of annular first cylinder interconnecting piece 191 and inner cylinder 114 is welded to connect, the second cylinder interconnecting piece of annular 192 and
The upper open end of outer barrel 115 is welded to connect.Annular first cylinder interconnecting piece 191, the second cylinder interconnecting piece of annular 192 and annular
The sealed connection to inner cylinder 114, outer barrel 115 and lead layer 116 is completed in the cooperation of cavity 193.In 116 expanded by heating of lead layer,
It is inflatable to be filled into toroidal cavity 193, to reduce damage of the thermal expansion stresses to 115 barrel of inner cylinder 114 and outer barrel.
To continue as shown in Fig. 5, Fig. 6,19 outside of top link extends to form annular third interconnecting piece 194 in 17 direction of outer seal upwards,
Upper outer seal 17 is pressed in sealing on annular third interconnecting piece 194.In the present embodiment, 17 periphery of upper outer seal and ring
Shape third interconnecting piece 194 is connected by outer bolt 20a, and sealing is equipped in outer bolt 20a and annular 194 junction of third interconnecting piece
Enclose 21a.Pass through being detachably connected for outer seal 17 in outer bolt 20a realizations and top link 19.Sealing ring 21a can be metal
Sealing ring, rubber seal and metal-rubber sealing ring etc. meet a variety of sealing rings of practical application, in the present embodiment, use
Metal o-ring, metal o-ring can enhance the leakproofness of upper outer seal 17 and top link 19.Top link 19 is recessed
An annular convex platform 195 is formed, upper inner cover 12 is in being removably sealedly attached on annular convex platform 195, specifically, annular convex platform
195 top surfaces form a right angle card slot 196 with annular 194 medial surface of third interconnecting piece, and 12 peripheral snap of upper inner cover is in rectangular card
It is tightly connected with top link 19 in slot 196.In the present embodiment, 12 periphery of upper inner cover passes through interior with annular convex platform 195
Bolt 20b connections are equipped with sealing ring 21b in inner bolt 20b and 195 junction of annular convex platform.By in inner bolt 20b realizations
Inner cover 12 is detachably connected with top link 19.
As shown in Fig. 2, spentnuclear fuel container for conveying provided by the invention further includes a trunnion 21, trunnion 21 is set to
19 outside of top link, and to be carried out to upper outer seal 17 and outer housing 13 between upper outer seal 17 and outer housing 13
It is tightly connected.One end of trunnion 21 is embedded in top link 19, and the other end of trunnion 21 protrudes out top link 19 simultaneously
Outer housing 13 is pressed in sealing.In the present embodiment, trunnion 21 is in " ┤ " character form structure.21 inside of trunnion is connect with top
19 outside connection of part, 21 outside of trunnion horizontally outward extend to form a protrusion 211, and protrusion 211 is connect with outer housing 13.Referring to
Fig. 5, Fig. 6, in the present embodiment, 19 outside of top link are recessed inwardly to form an engaging slot 197, and engaging slot 197 is opened on
1 outside of vessel, and engaging slot 197 is located in annular third interconnecting piece 194,21 inside of trunnion is fastened on the engaging slot 197
It is interior, it is fixedly connected with top link 19, and the connection with upper outer seal 17 is realized by annular third interconnecting piece 194, in turn
Complete the sealed connection to upper outer seal 17 and outer housing 13.
As shown in Fig. 2, spentnuclear fuel container for conveying provided by the invention further includes a bottom linker 22, bottom connection
Part 22 is set between cylinder 11 and lower outer seal 18 and cylinder 11 and lower outer seal 18 is connected and sealed.Bottom linker 22
Side is tightly connected with cylinder 11 and lower outer seal 18, and 22 other side of bottom linker is tightly connected with outer housing 13, and bottom connects
Fitting 22 is forging structure.In the present embodiment, lateral cylinder direction extends to form an outer housing outside 22 upper end of bottom linker
Interconnecting piece 221, outer housing connecting portion is immediately below outer barrel 115, top surface and the outer barrel 115 of outer housing interconnecting piece 221
Sealing bottom surface connects, and the lateral surface of outer housing interconnecting piece 221 is fixedly connected with the medial surface of outer housing 13, thus by outer housing 13
It is fixedly connected with cylinder 11.22 lower end inside face of bottom linker is tightly connected with lower outer seal 18, to realize lower outer seal
The sealed connection of 18 pairs of 13 under sheds of outer housing.Lower outer seal 18 is internally provided with neutron shield layer 181 and gamma shielding layer 182.
In conjunction with shown in Fig. 1-Fig. 7, spentnuclear fuel container for conveying provided by the invention has cylinder 11 in hollow structure,
Outer housing 13 is also arranged with outside cylinder 11, spentnuclear fuel is stored up by the opening of cylinder 11 into its hollow structure memory, cylinder 11
Opening is sealed by inner cover 12 on one, and the upper opening of outer housing 13 is sealed by outer seal 17 on one, outer housing 13
Under shed is sealed by outer seal 18 once, so that the spentnuclear fuel in cylinder 11 obtains double-deck seal protection, is made
It is more tight to obtain the sealing of spentnuclear fuel container for conveying, it is safer, better assure that peace of the spentnuclear fuel in transportational process
Quan Xing；Secondly, it is equipped with neutron shield layer and gamma shielding layer in upper inner cover 12, increases container security, ensure that staff exists
It is in when tearing outer seal open within safe radiation dose range；Again, the ring cavity formed between cylinder 11 and outer housing 13
It is provided with heat-conducting piece 15 in 14, ring cavity 14 is divided into the list of a plurality of mutual indepedent sealings (i.e. closed) by the heat-conducting piece 15
First chamber 141, the interior filling of unit chamber 141 absorb the neutron absorbing layer 16 of neutron, effectively will be in cylinder 11 by heat-conducting piece 15
Heat transfer to outer housing 13 is discharged, simultaneously because gold of the heat-conducting piece 15 of the present invention by least two different thermal coefficients
Belonging to part superposition connection to be formed, the heat that spentnuclear fuel generates can be exported container for conveying faster by the setting of heat-conducting piece 15, and
The superposition of at least two metals connects, and ensure that the high efficiency of the stability and heat conductivility of 15 shape of heat-conducting piece；Adjacent leads
The setting of neutron absorbing layer 16 between warmware make container for conveying to it is radioactive shielding more comprehensively, it is safer；In addition, this
The spentnuclear fuel container for conveying provided is invented, 1 both ends of vessel are equipped with top damper 2 and lower part damper 3, prevent
Influence of the impact to irradiated fuel assembly in shipping container, ensure that the transportation safety of irradiated fuel assembly in transportational process.This hair
The spentnuclear fuel container for conveying heat conductivility of bright offer is more preferable, and shielding properties is more preferable, disclosure satisfy that loading high burnup (is more than
The shipping storage requirement of fuel assembly 45000MWD/TU), and can store and transport for a long time spentnuclear fuel；Therefore, this hair
The spentnuclear fuel container for conveying of bright offer has the characteristics that shield effectiveness is good and safety and stability, and can be used to transport but also use
It is highly practical in storage, suitable for being widely used to promote.
Above disclosed is only the preferred embodiments of the present invention, and the interest field of the present invention cannot be limited with this,
Therefore equivalent changes made in accordance with the claims of the present invention belong to the range that the present invention is covered.
Claims (27)
1. a kind of spentnuclear fuel container for conveying, which is characterized in that including vessel, the vessel includes：
Cylinder, the cylinder are in the hollow structure with opening, and the hollow structure forms host cavity, and spentnuclear fuel is opened by described
Mouth enters in the host cavity, and the inner barrel is additionally provided with the gamma-ray lead layer of shielding；
Upper inner cover, the upper inner cover in be detachably arranged on the cylinder to it is described opening be sealed, it is described on
Run through in inner cover and offers the stomata being connected to the host cavity and water hole；
Outer housing, the outer housing are in hollow tubular structure, and the outer housing is sheathed on outside the cylinder, the outer housing with
Ring cavity is formed between the cylinder；
Heat-conducting piece, the heat-conducting piece are connected between the outer housing and the cylinder, and the ring cavity is by the heat-conducting piece point
Be cut into the unit chamber of a plurality of sealings, the unit intracavitary is filled with neutron absorbing layer, the heat-conducting piece by least two not
Metalwork superposition connection with thermal coefficient is formed；
Upper outer seal, the upper outer seal are in that the upper opening being detachably arranged on the outer housing to the outer housing carries out
Sealing, the upper outer seal are located at the surface of the upper inner cover and are compressed with the upper inner cover；And
Lower outer seal, the lower outer seal are in that the under shed being detachably arranged on the outer housing to the outer housing carries out
Sealing.
2. spentnuclear fuel container for conveying as described in claim 1, it is characterised in that：In the cylinder includes cylinder ontology and is lower
Capping, in tubular construction, the lower inner cover is set to the lower end of the cylinder ontology under the cylinder ontology to the cylinder ontology
Opening is sealed.
3. spentnuclear fuel container for conveying as claimed in claim 2, it is characterised in that：The cylinder ontology includes inner cylinder and outer
Cylinder, the lead layer are set between the inner cylinder and the outer barrel.
4. spentnuclear fuel container for conveying as claimed in claim 3, it is characterised in that：Further include a top link, it is described
Top link is set between the upper inner cover, upper outer seal and the cylinder, and the upper inner cover is by the top
Connector is sealed the opening of the cylinder, and the upper outer seal is by the top link to the upper of the outer housing
Opening is sealed.
5. spentnuclear fuel container for conveying as claimed in claim 4, it is characterised in that：The top link, which has, to be protruded out
Annular the first cylinder interconnecting piece and annular second cylinder interconnecting piece, the annular first cylinder interconnecting piece and described annular second
Toroidal cavity is formed between cylinder interconnecting piece, the lead layer is stretched into the toroidal cavity and sealed.
6. spentnuclear fuel container for conveying as claimed in claim 5, it is characterised in that：The annular first cylinder interconnecting piece is in
Sealing presses on the upper open end of the inner cylinder, and the annular second cylinder interconnecting piece is described outer in pressing on for sealing
On the upper open end of cylinder.
7. spentnuclear fuel container for conveying as claimed in claim 4, it is characterised in that：The top link, which has, to be protruded out
Annular third interconnecting piece, the upper outer seal presses in sealing on the annular third interconnecting piece.
8. spentnuclear fuel container for conveying as claimed in claim 7, it is characterised in that：The upper outer seal and described annular the
Three interconnecting pieces are detachably connected.
9. spentnuclear fuel container for conveying as claimed in claim 8, it is characterised in that：The upper outer seal and described annular the
The junction of three interconnecting pieces is additionally provided with sealing ring.
10. spentnuclear fuel container for conveying as claimed in claim 4, it is characterised in that：The top link is recessed to be formed
One annular convex platform, the upper inner cover are in removably to be sealedly attached on the annular convex platform.
11. spentnuclear fuel container for conveying as claimed in claim 10, it is characterised in that：The upper inner cover and the top
Connector is by bolt in dismountable connection.
12. the spentnuclear fuel container for conveying as described in claim 10 or 11, it is characterised in that：The upper inner cover with it is described
The junction of top link is equipped with sealing ring.
13. spentnuclear fuel container for conveying as claimed in claim 4, it is characterised in that：The top link is forging knot
Structure.
14. spentnuclear fuel container for conveying as claimed in claim 4, it is characterised in that：Further include a trunnion, the trunnion is in
The outside for being set to the top link of protrusion, and on described between the upper outer seal and the outer housing
Outer seal is connected and sealed with the outer housing.
15. spentnuclear fuel container for conveying as claimed in claim 14, it is characterised in that：One end of the trunnion is embedded in institute
It states in top link, the other end of the trunnion protrudes out the top link and presses on the shell in sealing
Body.
16. spentnuclear fuel container for conveying as claimed in claim 14, it is characterised in that：The trunnion is in " ┤ " font knot
Structure.
17. spentnuclear fuel container for conveying as described in claim 1, it is characterised in that：In being provided in the upper inner cover
Sub- shielded layer and gamma shielding layer.
18. spentnuclear fuel container for conveying as claimed in claim 17, it is characterised in that：It is recessed that the upper inner cover offers one
Slot, towards the upper outer seal, the neutron shield layer and gamma shielding layer are contained in the groove opening of the groove.
19. spentnuclear fuel container for conveying as claimed in claim 18, it is characterised in that：The opening of the corresponding groove is equipped with
The neutron shield layer being contained in the groove and gamma shielding layer are sealed by one cover board by the cover board.
20. spentnuclear fuel container for conveying as described in claim 1, it is characterised in that：Further include being inserted into the stomata and institute
State the stopple being sealed in water hole.
21. spentnuclear fuel container for conveying as described in claim 1, it is characterised in that：The inner wall of the cylinder be equipped with
The water pipe of the water hole connection, the inner wall of the cylinder are equipped with the tracheae being connected to the stomata.
22. spentnuclear fuel container for conveying as described in claim 1, it is characterised in that：The heat-conducting piece by a steel plate and
The superposition connection of one copper coin is formed.
23. spentnuclear fuel container for conveying as claimed in claim 22, it is characterised in that：The heat-conducting piece is by the steel plate
And the copper coin superposition explosion weldering is formed.
24. spentnuclear fuel container for conveying as described in claim 1, it is characterised in that：Further include a bottom linker, it is described
Bottom linker is set between the cylinder and the lower outer seal is sealed company to the cylinder and the lower outer seal
It connects.
25. spentnuclear fuel container for conveying as claimed in claim 24, it is characterised in that：The side of the bottom linker with
The cylinder and the lower outer seal are tightly connected, and the other side of the bottom linker is tightly connected with the outer housing.
26. spentnuclear fuel container for conveying as described in claim 1, it is characterised in that：In being additionally provided in the lower outer seal
Sub- shielded layer and gamma shielding layer.
27. spentnuclear fuel container for conveying as described in claim 1, it is characterised in that：Further include top damper and lower part
Damper, the top damper are connect with the upper outer seal, and the lower part damper is connect with the lower outer seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711065728.2A CN108428483B (en) | 2017-11-02 | 2017-11-02 | Spent fuel transportation and storage container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711065728.2A CN108428483B (en) | 2017-11-02 | 2017-11-02 | Spent fuel transportation and storage container |
Publications (2)
| Publication Number | Publication Date |
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| CN108428483A true CN108428483A (en) | 2018-08-21 |
| CN108428483B CN108428483B (en) | 2024-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711065728.2A Active CN108428483B (en) | 2017-11-02 | 2017-11-02 | Spent fuel transportation and storage container |
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| CN109599198A (en) * | 2018-12-12 | 2019-04-09 | 深圳中广核工程设计有限公司 | Spent nuclear fuel in nuclear power plant basin |
| CN109859872A (en) * | 2018-12-29 | 2019-06-07 | 无锡中核电力设备有限公司 | A kind of spent fuel storage basket |
| CN111095434A (en) * | 2018-11-26 | 2020-05-01 | 中广核研究院有限公司 | Fuel assembly transport container and support assembly therefor |
| WO2020107182A1 (en) * | 2018-11-26 | 2020-06-04 | 中广核研究院有限公司 | Fuel assembly transportation container and top capping device thereof |
| WO2020107183A1 (en) * | 2018-11-26 | 2020-06-04 | 中广核研究院有限公司 | Fuel assembly transport container and bottom sealing device thereof |
| CN111540495A (en) * | 2020-05-28 | 2020-08-14 | 中核环保产业有限公司 | Special device for preventing foreign matters in annular space of spent fuel dry-method storage sealed storage tank |
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