TW200804664A - Systems and methods for enhancing safety feature design for dry spent nuclear fuel storage - Google Patents

Abstract

The systems and methods disclosed herein relate to enhanced safety feature designs for dry spent nuclear fuel storage systems. A representative spent nuclear fuel storage system includes a concrete shell comprising a high performance concrete and concrete surface protection. The embodiment further includes a barrier configured to restrict access to the concrete shell and impede a projectile from impacting the concrete shell.

Description

200804664 IX. Inventories························································································· Used for dry nuclear waste storage 1 often is nuclear = concrete storage tank containing metal cans. The metal: excellent technology after welding in nuclear power plants, welding or mechanical seals, even in nuclear waste storage technology is often referred to as metal tank coagulation _ wind. As shown in Fig. 1, the drying hall has one, "...f" fault. According to the technology, the spin bucket acts as a guard, the thermal characteristics, and the internal metal mechanical shielding used to seal the radioactive material. Closed or repetitive packaging construction. _ _ cans radiating metal cans for concrete storage design must be based on seals, reconnaissance, 盥 卞 卞 卞 目 目 目 目 / / / / 、 、 、 、 、 、 、 、 、 、 、 、 、 Basically, a restriction on the bar requires that the needle system be protected to ensure that the pure material contained in the waste-free dry welding storage system t is known. The boundary for the full flex line system, the 戌^ brother's leak, the good for the cans is the boundary of the earthenware system. The concrete tank is designed to protect the internal metal tank storage system. It was not destroyed after any project for designing the system. For nuclear waste and radioactive material storage, the current explosion attack is not considered part of the design basis for the system. SUMMARY OF THE INVENTION [0007] Disclosed is a system and method for storing * nuclear storage. In the shape energy, the system contains a kind of one, which is used by women to receive a nuclear waste metal can containing high-quality nuclear tail scorpion storage ancient..., "is a concrete cover system of soil. The manufactured Concrete. 4 b—the use of g-enhanced features. δ 糸 进一步 further sentence cup seat pg 7 ^ ; at least part of the outer concrete cover a surface protector. The table ten and the column life The resistance of the vestibule/the tortoise 4 of the concrete cover, and the prevention of the separation of the debris from the soil by the θ ϊ J. The 糸, 充, 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括 包括Pulling Qiu Ba, a point of attachment, to the part that physically transfers the system to other locations. Finally, the system includes a fence that is attached to the pull handle or other attachment point 'which is installed to surround the concrete cover The thumb rests to prevent personnel from accessing the concrete cover' and prevents the projectile from impacting the concrete cover, and the cough barrier is installed to allow the nuclear waste to store the metal can. In other forms, the disclosure is for storage. A method of nuclear waste comprising storing nuclear waste in a nuclear waste metal can and placing the nuclear waste metal can in a concrete cover, the concrete cover being made of a high performance concrete. Concrete is a concrete made by the use of at least a density-enhancing property, and the dense-bonding property comprises at least one selected from the group consisting of: a mineral mixture, a water-reducing mixture, a superplasticizer, a density-enhancing aggregating agent, and A water minimization technique. The method further comprises: applying a concrete surface protector to at least a portion of the concrete cover, and surrounding the concrete by a grid barrier 1Π9-8511-ρρ 6 200804664 hood 'where the barrier is installed To flow the air that surrounds the coagulation but the nuclear waste metal can. "charge for use in cold... With the following drawings and detailed inspections, the pottery of the present invention will be apparent to those skilled in the art; Include all such other devices, methods, features, and advantages in the present description, within the scope of the present invention, and It is protected by (4) Ben Tian Ming I Tian Subsidiary Statement.

The systems and methods described herein relate to metal canister concrete nuclear waste storage systems that resist similar attacks. During the period after the attack by the terrorists in the Center of the Bayesian Center, the storage of radioactive or other toxic substances that may be subject to various terrorist attacks is stored in the meeting # & All, it is expressed as a question. This is because the project may constitute a project that exceeds the design of the “(1) (four) heart (雠) project, and the material I has not been explicitly designed. While many studies have shown the safety of metal canister concrete storage systems in the face of terrorist attacks on aircraft, security issues are potentially maintained (iv) to ensure or enhance (iv) the use of armor-piercing missiles, deformed weapons, Or the safety of other similar attack methods, so that the inner metal can is not destroyed. Disclosed herein is a system and method for hardening a metal canister concrete storage system that is attacked by an explosion or projectile. The exemplary form is discussed with reference to the drawings, although the system and method are described in detail, but those skilled in the art will generally understand that the scope of this statement and the specific description can be made.

1119-8511-PF 7 200804664 Various modifications. Figure 1 illustrates a metal canister system, a sputum waste storage system, as is known in the art today. The system includes a metal waste storage tank ΐ6 that is placed in one of the following: a clay bucket. Nuclear waste storage gold: 2 11 = often - a cylinder containing the waste fuel. After storing the nuclear waste in the tanks, the metal cans are generally welded or bolted to make a second environment and the metal cans are placed in a concrete enclosure. The coagulation, outer cover 1G2 provides radiation shielding and protects the author and the public from exposure to unhealthy light rays emitted from the nuclear waste rod, = when storing the storage f-nuclear reactor and electricity In order to reinforce the concrete cover 1〇2, the concrete containing the outer cover can be reinforced by the metal bar 106, as reinforced by, for example, the steel bar described. Also, the storage system provides an air inlet. 11〇 and an air outlet (1)' which assists the cooling of the nuclear waste storage tank. It is substantially adjacent to and surrounds the 呑 混凝土 concrete cover 10 in the whole genus 1, β u person, 円 盘 盘 盘 罐 116 Cooling and ventilation, necessary for long-term maintenance and safe storage of nuclear waste. At least one lifting handle 117 is combined with the concrete cover 102 to extract the attachment points for the transfer of the storage system 10. As in the process Often, in a nuclear reactor, a nuclear waste or waste material is stored or filled in a metal tank concrete storage system; however, it may not be at the load of the nuclear reactor, but adjacent Where the reactor itself is located, and the storage system is often stored at the same ownership. Therefore, some method of transferring from the reactor equipment to the nearest storage equipment is required. For example, after being associated with the use of the nuclear reactor, Can cool nuclear waste for a long period of time

1119-8511-PF 8 200804664 'then' then exist in or in the 彳 # # 49r -T r- PCT, then the nuclear waste storage close to the nuclear reactor is all in the tank. The metal can is first sealed with a gold concrete cover and storage system (4). Then, two:

, 7 mourners, the safe transfer of the storage system within the 1 00 I 1 reactor equipment to the nearest storage location. At least — L: The pull handle assists in the safe transfer of the storage system to a longer, long-lasting location. Even if only one is shown in the figure, 'but it should be understood (4) to lift the handle to use the haulage technology to assist the safe transfer of the metal tank concrete storage system. Existence Figure 2 illustrates a side view of a system 200 for storing nuclear waste. In this regard, it is stated that a nuclear waste staggered metal canister is placed in the concrete cover 2〇2. The concrete cover 2〇2 can be reinforced by a metal bar or a reinforcing bar reinforced material 2置于6 placed in the concrete coffee. Further use of a high performance coagulation ± 2G4 to make a concrete shroud 202' provides many advantages over other concrete. A high-performance concrete, which is also known as a high-density concrete, as in the present process, is a concrete formed by the use of a tempering strengthening characteristic which causes the concrete to have a higher than average concrete density. It will appreciate the density of concrete produced under the use of the bulk density enhancing properties, typically having about 15. The density of pounds per cubic foot; however, high performance or high density concrete made with the use of density-enhancing properties produces a higher density concrete with better resistance to spalling or cracking. Density-enhancing properties may include the addition of a heavier-enhancing aggregating agent that is heavier and that forms the same density as that produced by agglomerates used in the art to form concrete. In addition, if the agglutinating agent is a kind of water

1119-8511-PF 9 200804664 In the case of absorbents, it will result in a reduction in the amount of water that can be used primarily for the ease of use during mixing and/or forming.兮 ^ ^ 4 Water summer reduction also increases the concrete 鬲 鬲 本 本 本 本 本 本 本 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 一 本 一 本 一 一 一 一 本 本 一 一 一 一 一 本 本 一 一 一 本 一The higher resistance to spalling or cracking concrete cover in the project. The exhaustive strengthening agglomerating agent used for the formation of A performance concrete may include but not limited to. Iron, tin, titanium, sulfuric acid钡, paving, gangyan, wrong, crane, sea | + 甘α A, ”, steel or other heavy minerals. Density hardening may also include & concrete being shaped or shaped into a swell and used as a rotator for absorbing water while drying. The ritual enhancement feature can also be used to reduce the amount of water, including the reduction of the amount of water used in the use of sputum. Because one period is mainly used to make “, add water to the species at this stage... the use of m, and the addition of a large amount of water can lead to low-concrete concrete. Furthermore, when forming and/or forming in concrete manufacturing During the stage, it is allowed to compare with the addition of moisture, θ, for example, but not limited to the mineral of the fly ash: the density of the mouth-density, to improve the workability, the plasticity force required during the reduction of the soil. Less moisture, the obstruction of the mixture can not lead to the production of a higher performance or higher density concrete. Moreover, 'hunting reduces the amount of water required for concrete workability during the manufacturing stage of formation/forming, and the water-reducing mixture or super-plasticizer known in the art can be used as a density-enhancing property, whereby Mixture = density and strength of concrete produced by Nansheng. From the foregoing discussion, the bamboo should be appreciated that the density-enhancing properties may include other known in the art.

1119-8511-PF 200804664 A method for producing high performance concrete having a density higher than that of a cement having no density enhancement characteristics. The blending effect produced is related to the density of the concrete cover. The performance of the concrete is used to raise the concrete, due to the high fruit. Through the addition of the above-mentioned dense two-density strengthening property in the soil mixture, the combination of the dense concrete layer;; or other high-impact or explosive load of the conventional concrete, and the high performance of the elastic resistance Concrete. The combination of stone and stone in the concrete cover can also improve the resistance to dumping of the storage system in the explosion or idling t-coagulation project of the impact storage system. The user of the storage system 200, as described above, often requires the user to be moved, first to the storage device. According to the request, at least the caller is provided to provide the transfer storage system 20. Dependent point. The to the second two 217: the hand 217 is installed to have a support storage system 20. The weight two H is the force when the storage system 200 is loaded with nuclear waste, especially = when high performance concrete 2〇4 made of concrete cover concrete: when it is spalled, cracked, and resistant to dumping, it can be further lifted by the use of mixed surface protection 220. - Concrete protection 220 can enhance coagulation ::Second, the breaking and spallation of the strong core of the hood. The explosion or arson device of the concrete dehydration caused by the concrete surface protection is a gift from the fire. As known in the art , in particular, and caused by spallation or: soil =; and the heat of the hair, can weaken the military uniforms outside the concrete and endanger the concrete structure. 1119-8511-ρρ 11 200804664 When a metal cover or cover can be used as a Concrete surface protector 220 At the same time, a concrete surface support 220 for spraying can be used to improve the strength and resistance to spalling and cracking of the concrete cover. The concrete surface protector 220 is designed to provide high ductility to resist cracking. Designing the resistance and high strength bonding to the concrete surface is (10) T h to prevent the formation of the shrapnel caused by the recent explosion detonation or to minimize the size and quantity thereof, thus the damage of the joint. The concrete surface protection 22. It may include, but is not limited to, "amine coating 16 of monolithic elastomer for coating or coating, polyethylene UHMW-PE", high density polyethylene, polyamine, poly gland, water urea /3⁄4 ester/polyurethane mixture, extruded thermoplastic sheet elastomeric polymer material. U-heat attack, hardening or protection—a target that avoids being attacked by an explosive device or projectile. — The explosive projectile or missile is detonated before it arrives. This strategy can reduce the impact or penetration of explosions or shells on objects. Early detonation reduces the number of explosive devices. The effect of the explosion pulse is distributed on the target object. Therefore, it reduces the penetration force of the 兮 兮 并可 and can be rotated from the optimal zero tilt angle. This strategy can be employed to further harden or protect a storage cartridge 4 from terrorist attacks with explosive devices or shells. More specifically, it can be combined with a protective cover 218 to attack the storage system. In addition, two: and reduce the explosion m μ -Γ At, = 冉 & 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄 玄

Π19-8511-PF 12 200804664 Less indirect damage. As shown in Fig. 2, the protective fence 218 may include a cage composed of metal rods. The barrier barrier 21 8 can be constructed from a varying metal configuration to adjust the size of the cage: the middle opening. Optionally, a change in the opening of the smaller barrier can be selected to further prevent an individual from entering the cage or to prevent the potentially explosive device from being inserted by the opening of the barrier. In addition, the retaining fence 218 can be installed to prevent the destroyer from being sufficiently close to the concrete shroud to mount the explosive device at or near the surface of the concrete shroud 2〇2. Furthermore, Figure 2 shows that the protective barrier 218 around the outer casing of the thirsty concrete should be constructed and adjusted to create a larger distance between the separated concrete cover 202 and the fence 218. . The barrier 218 can also be worn by the woman to allow sufficient air flow into the air 1 and/or out of the air outlet 214 for proper nuclear waste storage: the cooling of the tank 216. As described above, 'sufficient air circulation and proper cooling =: a long % of storage of nuclear waste in the storage system is necessary. The barrier damper 218 can be mounted to ensure at least one pull handle 217 that is coupled to the storage system 2〇〇. It should be realized that it can be connected to the lift by the side of the lift + by the square K block 218 ... the concrete cover 2〇2. For example, you can use -==Crystal Lock 219 or Solder to ensure that the protective barrier (10) is attached to the library and can be connected to the library. At the end of PM 1, ensure that (4) 218 hands (9) μ in the 亥 钿 , , 由于 ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° ° Figure 2 illustrates a lifting handle = moving two again, the handle should be lifted above to assist the storage ... 2 217, but can be safely transported with a 谛 糸 200 200.

H19-8511.PF 13 200804664 It should also be appreciated that it can be constructed by including a chain-linking bar, vertical erection iron & limited to reinforced scorpion, heavy-duty barrel narrow or wall construction, or various: in: again, iron sheave The different materials of the independent fruit plucking method are the equivalent of the known process in the process. In addition, the barrier 218 storage = with the mast to protect the barrier interception should continue to provide air flow into and out of the cooling transport p bU # generation of flow for the nuclear scrap metal to lift (10) small open. At the gate barrier; the gap is simultaneously 218 penetrated. Fig. 3 shows the second figure 妒^ s. H ^ Exploded perspective or partial section view. Moreover, Fig. 4 shows another 袪 j j or mouth P knives profile Fig. As described, ο steel ribs dragon child I protection barrier 318, with respect to the brothers 2 and 3 map taken & two people m 7 heart of the Meng rod protection fence 21 8 . The protective barrier 218 still maintains the air circulation for the nuclear waste cooling and has the other protective barrier properties described above. The figure 5 shows that one is used for storing nuclear waste. Flowchart of the method. Beginning with step 5 01, Jiang - Jing + + "take a nuclear scrap metal can placed in the concrete outside the concrete containing high-performance concrete. Alternatively, in steps 5 〇 3, 5 〇5, and 507, the nuclear waste metal can is placed in the concrete cover. As described in the 〃 towel w J · birth / tti continuous soil is a kind of strength and rigidity advantages

High density concrete. Can be used as an anvil τ τp I ~, the goblin is strengthened by metal rods or other concrete reinforcements used in the concrete cover to further modify the strength and rigidity of the 'cover. In step 5〇3, a concrete surface protector installed to enhance the strength of the concrete is also applied to at least one part of the concrete cover.

H19-85I1-PF 14 200804664 points. Moreover, a fence installed to prevent the projectile or individual from passing through or approaching the concrete enclosure is erected in step 505. Finally, a point of attachment is provided so that the storage system that has hardened to combat the threat of attack can be moved or transferred in step 5〇7. It should be emphasized that the above-described modalities are merely possible examples of implementation and are only presented for the principles of the present invention, 'clearly understood. The above-described embodiments of the present invention can be modified without departing from the spirit and scope of the present invention, and are protected by the following statements. [Simple description of the schema] The brother 1 is a partial cross-sectional view of the nuclear waste concrete storage tank of the 4 θ τ soldier in the previous work. Brother 2, the nucleus, Η, 丄 丄; Ά 剖面 剖面 剖面 减 减 减 减 减 减

The brother 3 is a sectional view. Figure 4 is a cross-sectional view. A nuclear waste concrete storage bucket in the form of a see-through nuclear waste concrete bucket - a perspective view of the shape of Figure 5 illustrates a form of pain in the form of a method of storing nuclear waste [main symbol description] 100 metal cans concrete waste storage system

1119-8511-.PF 15 200804664 1 0 2 concrete bucket 104 high performance concrete 1 0 6 metal rod 11 0 air inlet 1IV air outlet 116 nuclear waste storage metal can 117 lifting handle 200 storage nuclear waste system 202 concrete cover 204 high Performance concrete 2 0 6 reinforcement material 21 0 air inlet 214 air outlet 216 nuclear waste storage metal can 217 lifting handle 21 8 protection fence 219 heavy duty spring lock 220 concrete surface protection 300 metal cans concrete waste storage system 302 concrete cover 304 high performance concrete 3 0 6 steel reinforcement material 31 0 air inlet 314 air outlet 16

1119-8511-PF 200804664 316 nuclear waste storage metal can 317 pull handle 318 protective fence 319 heavy duty spring lock 320 concrete surface protector 500 flow chart for the method of storing nuclear waste 501, 503, 505, 507 steps

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1119-8511-PF

Claims (1)

200804664 X. Patent application scope: 1· A nuclear waste storage system, including ···>匕; a rotating earth cover, a sturdy a± ^ women's clothing, a grain-nuclear waste storage metal can, the concrete cover contains 1. The soil of the Japanese 々 丄 , ,, the high-performance concrete 匕 3:: at least one of the density-reinforced properties of the concrete; - surface protection applied to at least a part of the concrete cover, female I To change the separation; The outer cover of the outer cover is resistant to spalling, cracking and at least a pull handle, is attached to the concrete cover, and the at least one pull handle is mounted to provide the mixed point; and an attached fence of the kilogram and the transfer Attached to the lifting handle, the screw cover is installed to prevent the individual from accessing the concrete cover, the concrete cover, and the half-Zhuangya prevents the shell from impacting the air circulation of the can. ° Cedar stocks storage metal 2. Nuclear waste storage continuation as claimed in item 1 of the scope of the patent. Density-enhancing properties include – mineral mixtures. Sub-" 3. If the nuclear waste of the first application of the scope of patent application is stored in the squeaky slogan, the reinforced scorpion has a superplasticizer. 4·If the scope of application for patents is the nuclear waste Density-enhancing properties include - water-reducing mixture. Shearing system · 5 · The nuclear waste density-enhancing properties of item j of the patent application include - density-enhanced aggregating agent. Subsystem '6, as claimed in the scope of application for nuclear waste storage The system, in which 1119-85 U-PF 18 200804664 control enhancement characteristics, includes a moisture minimization technique. 7. A nuclear waste storage system comprising: a 'money ^ cover, installed to accommodate a nuclear waste storage metal can; at least - a pull handle attached to the concrete cover, and the handle is installed to read (4) the nuclear waste (4) Transfer of the shirt system-attachment, point; connect the concrete cover with the concrete cover, e, t 8' such as Shenqing patent scope item 7 nuclear waste storage system, in which: 2: hunting Concrete produced by the use of at least one selected from the group consisting of: a density-enhancing aggregating agent, a moisture minimization technique, a water-reducing mixture, and a superplasticizer. <小-9, as in the nuclear waste storage system of claim 8 of the patent application, the "enhanced aggregating agent is selected from at least one of iron, steel, tin, chin, sulfuric acid lock, gangue stone, lead and tungsten. _牛!^如/Please refer to the nuclear waste storage system of item 7 of the patent scope, in which Xuantong: female ^ 拦 以 以 以 核 核 核 核 四 四 四 四 四 四 四 四 四 四 四 四 四 四 ^ ^ 1 1 1苜 r r r r r 员 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核 核{ The sash is blocked to prevent the missile from reaching the concrete cover. 13·If the nuclear waste storage system of the scope of claim 7 is &1; 1119-8511-Pp 19 200804664, the fence includes a cage containing metal rods. 14. A nuclear waste storage system according to claim 7, wherein the surface protection of the concrete cover is improved by a mounting to enhance the resistance of the concrete cover to spalling, cracking, or separation. Part of 15. If applying The nuclear waste storage system of item 14, wherein the surface protectant is selected from the group consisting of: an amine vinegar coating of a monolithic elastomer, 4, ultra high score: polyethylene (10) MW,), polyethylene, polyamine At least one of a polyurea, an amine vinegar, and a loosely pressed thermoplastic sheet material. ▲ 16. A nuclear waste storage system according to claim 14 wherein the silk surface protector comprises an elastomeric polymeric material. A method for storing nuclear waste, comprising the steps of: storing nuclear waste in a nuclear waste storage metal can; placing the nuclear waste metal can in a concrete cover, the concrete cover being made of surface performance concrete, and the high performance concrete Manufactured using a density-enhancing property of the species, the density-enhancing special W4 from a mineral mixture, a water-reducing mixture, a super-density 7-density agglomerating agent, and a moisture minimization technique applied to a surface Protecting at least a portion of the concrete exterior, installing a surface protector to enhance resistance of the concrete cover to spalling, cracking, and separation; The fence surrounds the concrete cover, and the cover is installed to enable sufficient wind to move the nuclear waste storage metal can. 18. The method of depositing nuclear waste in the museum as claimed in the patent scope, 1119-8511 -PF 20 200804664 1' The dense agglutinating agent is selected from the group consisting of iron, steel, tin, titanium, barium sulphate uranium, strontium rock 'lead, and tungsten. 19, as claimed in the patent _ 1735 The method of nuclear waste, the step-by-step installation of the barrier to prevent the projectile from impacting the concrete cover. 2. The method of depositing nuclear waste in the library of claim 17 of the patent scope, the medium-step m-grid restricts personal access The method for storing nuclear waste: the cover method according to claim 17 of the patent application scope, wherein the 5 hai barrier comprises a cage comprising a plurality of metal rods. 22. If the material of the application for the patent period is the material of the four sides, the four-sided protective material is selected from the group consisting of: amine coating of the whole piece of elastomer = method, ... polyethylene coffee W,), polyethylene, polyamine brewing, / At least one of super and extruded thermoplastic sheet materials. In the storage of the urethane, the amine ester 23. The surface protective material comprises the -elastomer polymer material in the storage of the scope of the patent application, 2 4 · If the patent scope of the application further includes: Waste method, providing - the point of attachment for the transfer of nuclear waste. 1119-8511-PF 21