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    • 3. 发明授权
    • Passive decay heat removal system for water-cooled nuclear reactors
    • 水冷核反应堆被动衰变散热系统
    • US5076999A
    • 1991-12-31
    • US596155
    • 1990-10-10
    • Charles W. Forsberg
    • Charles W. Forsberg
    • G21C15/18
    • G21C15/18Y02E30/40
    • A passive decay-heat removal system for a water-cooled nuclear reactor employs a closed heat transfer loop having heat-exchanging coils inside an open-topped, insulated box located inside the reactor vessel, below its normal water level, in communication with a condenser located outside of containment and exposed to the atmosphere. The heat transfer loop is located such that the evaporator is in a position where, when the water level drops in the reactor, it will become exposed to steam. Vapor produced in the evaporator passes upward to the condenser above the normal water level. In operation, condensation in the condenser removes heat from the system, and the condensed liquid is returned to the evaporator. The system is disposed such that during normal reactor operations where the water level is at its usual position, very little heat will be removed from the system, but during emergency, low water level conditions, substantial amounts of decay heat will be removed.
    • 用于水冷核反应堆的被动衰变 - 热去除系统采用封闭的传热回路,其中热交换线圈位于反应堆内部的开口绝缘箱内,低于其正常水位,与冷凝器连通 位于遏制外面并暴露在大气中。 传热回路定位成使得蒸发器处于这样的位置:当反应器中的水位下降时,它将变得暴露在蒸汽中。 在蒸发器中产生的蒸汽向上通向冷凝器高于正常水位。 在操作中,冷凝器中的冷凝物从系统中除去热量,冷凝的液体返回到蒸发器。 该系统被布置成使得在水位处于其通常位置的正常反应堆操作期间,将很少的热量从系统中移除,但是在紧急情况下,在低水位条件下,大量的衰变热将被去除。
    • 4. 发明授权
    • Treatment of halogen-containing waste and other waste materials
    • 处理含卤素废物和其他废料
    • US5613241A
    • 1997-03-18
    • US443624
    • 1995-05-18
    • Charles W. ForsbergEdward C. BeahmGeorge W. Parker
    • Charles W. ForsbergEdward C. BeahmGeorge W. Parker
    • G21F9/30G21F9/34G21F9/00
    • C03C1/002G21F9/305G21F9/34
    • A process for treating a halogen-containing waste material. The process provides a bath of molten glass containing a sacrificial metal oxide capable of reacting with a halogen in the waste material. The sacrificial metal oxide is present in the molten glass in at least a stoichiometric amount with respect to the halogen in the waste material. The waste material is introduced into the bath of molten glass to cause a reaction between the halogen in the waste material and the sacrificial metal oxide to yield a metal halide. The metal halide is a gas at the temperature of the molten glass. The gaseous metal halide is separated from the molten glass and contacted with an aqueous scrubber solution of an alkali metal hydroxide to yield a metal hydroxide or metal oxide-containing precipitate and a soluble alkali metal halide. The precipitate is then separated from the aqueous scrubber solution. The molten glass containing the treated waste material is removed from the bath as a waste glass. The process of the invention can be used to treat all types of waste material including radioactive wastes. The process is particularly suited for separating halogens from halogen-containing wastes.
    • 一种处理含卤素废料的方法。 该方法提供了含有能够与废料中的卤素反应的牺牲金属氧化物的熔融玻璃浴。 相对于废料中的卤素,牺牲金属氧化物以至少化学计量的量存在于熔融玻璃中。 将废料引入熔融玻璃浴中,引起废料中的卤素与牺牲金属氧化物之间的反应,得到金属卤化物。 金属卤化物是在熔融玻璃的温度下的气体。 将气态金属卤化物与熔融玻璃分离,并与碱金属氢氧化物的水性洗涤剂溶液接触,得到金属氢氧化物或含金属氧化物的沉淀物和可溶性碱金属卤化物。 然后将沉淀物与水性洗涤器溶液分离。 将含有经处理的废料的熔融玻璃作为废玻璃从浴中除去。 本发明的方法可用于处理所有类型的废物,包括放射性废物。 该方法特别适用于将卤素从含卤素废物中分离出来。
    • 5. 发明授权
    • Depleted uranium as a backfill for nuclear fuel waste package
    • 废弃的铀作为核燃料废物包装的回填
    • US5832392A
    • 1998-11-03
    • US858189
    • 1997-04-15
    • Charles W. Forsberg
    • Charles W. Forsberg
    • G21F1/08G21F5/008G21F9/36G21F9/00
    • G21F5/008G21F1/085G21F9/36G21Y2004/60
    • A method for packaging spent nuclear fuel for long-term disposal in a geological repository. At least one spent nuclear fuel assembly is first placed in an unsealed waste package and a depleted uranium fill material is added to the waste package. The depleted uranium fill material comprises flowable particles having a size sufficient to substantially fill any voids in and around the assembly and contains isotopically-depleted uranium in the +4 valence state in an amount sufficient to inhibit dissolution of the spent nuclear fuel from the assembly into a surrounding medium and to lessen the potential for nuclear criticality inside the repository in the event of failure of the waste package. Last, the waste package is sealed, thereby substantially reducing the release of radionuclides into the surrounding medium, while simultaneously providing radiation shielding and increased structural integrity of the waste package.
    • 一种用于在地质储存库中长期处置废核燃料的方法。 至少有一个废核燃料组件首先被放置在未密封的废料包装中,并且废弃的铀填充材料被添加到废物包装中。 贫化铀填充材料包括具有足以基本上填充组件内部和周围的任何空隙的尺寸的可流动颗粒,并且含有+4价态的同位素贫化的铀的量足以抑制废核燃料从组件溶解到 周围的介质,并在废物包装故障的情况下减少储存库内的核危害的可能性。 最后,废物包装被密封,从而大大减少放射性核素释放到周围介质中,同时提供辐射屏蔽和增加废物包装的结构完整性。
    • 6. 发明授权
    • Adhesive applicator device
    • 粘合剂涂布器
    • US4106154A
    • 1978-08-15
    • US686136
    • 1976-05-13
    • Charles W. Forsberg
    • Charles W. Forsberg
    • A47L13/46B05C17/00B43M11/04
    • A47L13/46B05C17/00B43M11/04
    • An adhesive applicator device including an elongated shaft having a bifurcated end portion and a handle secured thereto at its end opposite the bifurcated end portion. A porous resilient applicator pad is pressed into the bifurcation in the bifurcated portion of the shaft, and includes a central pad portion disposed between the portions of the shaft defining the bifurcation, and a pair of spaced adhesive applicator portions disposed on opposite sides of the central pad portion and exposed to facilitate application of adhesive from the outer peripheral surface of the pad to an object in contact therewith.
    • 一种粘合剂施加装置,包括具有分叉端部的细长轴和在其分叉端部相对的端部固定到其上的手柄。 多孔弹性施加器垫被压入轴的分叉部分中的分叉,并且包括设置在限定分叉的轴的部分之间的中心衬垫部分,以及一对间隔开的粘合剂施加器部分,设置在中心部分的相对侧上 并且暴露以便于将粘合剂从垫的外周表面施加到与其接触的物体。
    • 8. 发明授权
    • Recovery of fissile materials from nuclear wastes
    • 从核废料中回收裂变材料
    • US5961679A
    • 1999-10-05
    • US964761
    • 1997-11-05
    • Charles W. Forsberg
    • Charles W. Forsberg
    • C03B5/00G21C19/46G21C19/48G21F9/30G21F9/00
    • G21C19/46C03B5/005G21C19/48G21F9/305Y02P40/52Y02W30/883Y02W30/884
    • A process for recovering fissile materials such as uranium, and plutonium, and rare earth elements, from complex waste feed material, and converting the remaining wastes into a waste glass suitable for storage or disposal. The waste feed is mixed with a dissolution glass formed of lead oxide and boron oxide resulting in oxidation, dehalogenation, and dissolution of metal oxides. Carbon is added to remove lead oxide, and a boron oxide fusion melt is produced. The fusion melt is essentially devoid of organic materials and halogens, and is easily and rapidly dissolved in nitric acid. After dissolution, uranium, plutonium and rare earth elements are separated from the acid and recovered by processes such as PUREX or ion exchange. The remaining acid waste stream is vitrified to produce a waste glass suitable for storage or disposal. Potential waste feed materials include plutonium scrap and residue, miscellaneous spent nuclear fuel, and uranium fissile wastes. The initial feed materials may contain mixtures of metals, ceramics, amorphous solids, halides, organic material and other carbon-containing material.
    • 从复杂的废料进料中回收诸如铀,钚和稀土元素等易裂变材料的方法,并将剩余的废物转化成适用于储存或处理的废玻璃。 废料与由氧化铅和氧化硼形成的溶解玻璃混合,导致金属氧化物的氧化,脱卤和溶解。 加入碳以除去氧化铅,生成氧化硼熔融熔融物。 熔融熔体基本上没有有机物质和卤素,容易而迅速的溶解在硝酸中。 溶解后,将铀,钚和稀土元素与酸分离,并通过PUREX或离子交换等工艺回收。 剩余的酸性废物流被玻璃化以产生适于储存或处理的废玻璃。 潜在的废物饲料包括钚废料和残留物,杂项废核燃料和铀裂变废物。 初始进料可以包含金属,陶瓷,无定形固体,卤化物,有机材料和其它含碳材料的混合物。