公开(公告)号：US11842819B2

公开(公告)日：2023-12-12

申请号：US17479116

申请日：2021-09-20

申请人： TerraPower, LLC

发明人： Robert A. Corbin ,  John E. Truax

IPC分类号： G21C19/313 ,  G21C17/022

CPC分类号： G21C19/313 ,  G21C17/022

摘要： A method for replacing a cesium trap includes freezing the cesium trap which partially contains cesium and is located within a shielded cell and. The cesium trap is then decoupled and removed from the shielded cell. A second cesium trap is inserted into the shielded cell and attached to the shielded cell.

公开(公告)号：US4893792A

公开(公告)日：1990-01-16

申请号：US268759

申请日：1988-11-09

申请人： Kiyomitsu Nemoto ,  Norikatsu Yokota ,  Yoshihiko Sato ,  Shigehiro Shimoyashiki ,  Kenji Mokuya ,  Hiroshi Haino

发明人： Kiyomitsu Nemoto ,  Norikatsu Yokota ,  Yoshihiko Sato ,  Shigehiro Shimoyashiki ,  Kenji Mokuya ,  Hiroshi Haino

IPC分类号： B01D8/00 ,  C22B9/02 ,  G21C19/313

CPC分类号： C22B9/02 ,  B01D8/00 ,  G21C19/313 ,  Y02P10/234

摘要： This invention relates to a cold trap for collecting impurities from liquid, which comprises a mesh screen and a spacer mesh having higher strength and wider mesh holes than that of the mesh screen interposed between the windings of the mesh screen. According to the present invention, since the spacer mesh supports the mesh screen over the whole surface thereof so that the mesh screen is protected free from break or deformation, the stiffness and collecting efficiency of the mesh section can be maintained prolongedly.

摘要翻译： 本发明涉及一种用于从液体中收集杂质的冷阱，其包括网筛和间隔网，隔离网具有比插入在筛网的绕组之间的筛网更高的强度和更宽的网孔。 根据本发明，由于间隔网在其整个表面上支撑网状筛网，因此可以保护网眼免受断裂或变形，可以延长网状部分的刚度和收集效率。

公开(公告)号：US4713214A

公开(公告)日：1987-12-15

申请号：US541749

申请日：1983-10-13

申请人： Jean-Jacques Dumay ,  Claude Malaval

发明人： Jean-Jacques Dumay ,  Claude Malaval

IPC分类号： C22B26/10 ,  G21C19/313 ,  G21C19/30

CPC分类号： G21C19/313

摘要： Device for purifying liquid metal coolant for a fast neutron nuclear reactor, comprising a pump (6) for circulating the liquid metal, the metal then being purified and heated after purification, as well as a filter (24) of metallic fibers. It consists of an assembly of annular chambers with a vertical axis, closed at their lower part by a base plate (10) and defined and separated from each other by an assembly of coaxial cylindrical metallic shells. The device comprises, from the exterior inwards, a degassing chamber (12), a chamber enclosing an economizer-exchanger (14, 16), a thermal insulation wall (18), a cooling chamber (20) and a purifying chamber (22) in the central part of which is a filter cartridge (24). In the central part of the cartridge (24) is a channel (25) for collecting the purified liquid metal in communication with a basin (44) for collecting the purified liquid metal rising above the device. The invention applies, in particular, to fast neutron nuclear reactors of an integrated type, cooled with liquid sodium.

摘要翻译： 一种用于纯化用于快中子核反应堆的液体金属冷却剂的装置，包括用于使液态金属循环的泵（6），纯化后被净化和加热的金属以及金属纤维的过滤器（24）。 它由具有垂直轴线的环形室的组件组成，在其下部由基板（10）封闭，并且通过同轴的圆柱形金属壳的组件彼此限定和分离。 该装置从外部向外包括一个脱气室（12），一个包围节能器交换器（14,16）的腔室，一个隔热壁（18），一个冷却室（20）和一个净化室（22） 其中心部分是过滤器滤芯（24）。 在盒（24）的中心部分是用于收集与用于收集在装置上方上升的净化液体金属的盆（44）连通的净化液体金属的通道（25）。 本发明特别适用于用液态钠冷却的集成型快中子核反应堆。

公开(公告)号：US4693088A

公开(公告)日：1987-09-15

申请号：US890480

申请日：1986-07-30

申请人： Christian Latge

发明人： Christian Latge

IPC分类号： B01D8/00 ,  C22B9/02 ,  C22B26/10 ,  G21C19/313

CPC分类号： G21C19/313 ,  B01D8/00 ,  C22B26/10 ,  C22B9/02 ,  Y02P10/234

摘要： Cold trap for eliminating the impurities present in a polluted liquid metal. It comprises a body provided with an intake pipe for the polluted liquid metal and an internal structure defining a passage for the metal, said structure being successively provided with means for cooling the liquid so that it can be cooled to a cold point temperature below the impurity saturation temperature and bring about a crystallization of the impurities, means for retaining the impurities and a discharge pipe for discharging from the body the impurity-free metal and means for reinjecting upstream of the cooling means part of the fluid which has passed through the impurity retention means. Application to liquid metal-cooled nuclear reactors.

摘要翻译： 用于消除污染液态金属中存在的杂质的冷阱。 它包括一个主体，该主体设置有用于污染的液态金属的进气管和限定金属通道的内部结构，所述结构依次设置有用于冷却液体的装置，使得其可被冷却到低于杂质的冷点温度 饱和温度并引起杂质的结晶，用于保留杂质的装置和用于从体内排出不含杂质的金属的排出管和用于在冷却装置的上游注入已经通过杂质保留的流体的一部分的装置 手段。 应用于液态金属冷却核反应堆。

公开(公告)号：US4432208A

公开(公告)日：1984-02-21

申请号：US422287

申请日：1982-09-23

申请人： Osamu Onuki ,  Toyohiko Kirisawa

发明人： Osamu Onuki ,  Toyohiko Kirisawa

IPC分类号： C22B26/10 ,  B01D8/00 ,  G21C19/313

CPC分类号： G21C19/313 ,  B01D8/00

摘要： A cold trap including a section for cooling inflowing liquid sodium, a section for trapping impurities in the sodium, and a double-walled cylindrical structure disposed between the cooling section and the trapping section. The double-walled structure is filled with a heat-insulating gas, and is closed at its upper end but open at its lower end. An expanded portion designed for storing the heat-insulating gas is formed at the open lower end or in the vicinity thereof of the double-walled structure.

摘要翻译： 冷阱，其包括用于冷却流入液态钠的部分，用于捕获钠中的杂质的部分和设置在冷却部分和捕集部分之间的双壁圆柱形结构。 双层结构填充有绝热气体，并在其上端封闭，但在其下端开口。 在双层结构的开口下端或其附近形成设计用于储存隔热气体的膨胀部分。

公开(公告)号：US3941586A

公开(公告)日：1976-03-02

申请号：US581612

申请日：1975-05-29

申请人： John M. McKee, Jr.

发明人： John M. McKee, Jr.

IPC分类号： C22B9/02 ,  C22B26/10 ,  G21C19/313 ,  C22B27/00

CPC分类号： C22B9/02 ,  C22B26/10 ,  G21C19/313 ,  Y02P10/234

摘要： Oxide and hydride impurities of a liquid metal such as sodium are removed from a cold trap by heating to a temperature at which the metal hydroxide is stable in a molten state. The partial pressure of hydrogen within the system is measured to determine if excess hydride or oxide is present. Excess hydride is removed by venting hydrogen gas while excess oxide can be converted to molten hydroxide through the addition of hydrogen. The resulting, molten hydroxide is drained from the trap which is then returned to service at cold trap temperatures within the liquid-metal system.

摘要翻译： 通过加热到熔融状态下金属氢氧化物稳定的温度，从冷阱中除去液态金属如钠的氧化物和氢化物杂质。 测量系统内氢的分压，以确定是否存在过量的氢化物或氧化物。 通过排出氢气除去过多的氢化物，同时过量的氧化物可以通过加入氢气而转化为熔融氢氧化物。 将所得的熔融氢氧化物从捕集器中排出，然后将其返回到在液体 - 金属系统内的冷阱温度下使用。

公开(公告)号：US3483980A

公开(公告)日：1969-12-16

申请号：US3483980D

申请日：1967-01-25

申请人： ATOMIC ENERGY COMMISSION

发明人： COCHRAN JOHN T ,  COLLINS GORDON D

IPC分类号： B01D29/00 ,  B01D29/01 ,  B01D35/143 ,  B01D35/18 ,  G21C19/313 ,  B01D35/14

CPC分类号： G21C19/313

公开(公告)号：US5149493A

公开(公告)日：1992-09-22

申请号：US510972

申请日：1990-04-19

申请人： Christian Latge

发明人： Christian Latge

IPC分类号： B01D5/00 ,  G21C19/313

CPC分类号： G21C19/313 ,  Y10S55/15

摘要： Installation and method to regenerate cold traps loaded with the hydride and oxide of a metal, such as sodium, in its liquid state. A forced circulation of the orginal liquid metal of a tank (11) is created at a temperature sufficient to dissolve the solid deposits. The hydrogen and tritium ions are filtered and end up at a storage tank (42) where they are fixed, whereas the oxygen ions recombine so as to form a new oxide deposit in another trap (23) cooled to a temperature enabling only the oxide to be deposited. An application is for fast neutron nuclear reactors and fusion reactors.

摘要翻译： 安装和方法来重新装载处于液态的氢化物和金属如钠的氧化物的冷阱。 在足以溶解固体沉积物的温度下产生罐（11）的原液液体金属的强制循环。 将氢和氚离子过滤并​​结束于储存罐（42），在储罐（42）处固定，而氧离子复合，以在另一个冷凝器（23）中形成新的氧化物沉积物，冷却至仅使氧化物 存放 适用于快中子核反应堆和聚变反应堆。

公开(公告)号：US5030411A

公开(公告)日：1991-07-09

申请号：US270558

申请日：1988-11-14

申请人： Martin H. Cooper

发明人： Martin H. Cooper

IPC分类号： G21C19/313

CPC分类号： G21C19/313

摘要： The coolant is circulated thorugh the core of the reactor by a pump between a higher-pressure plenum and a lower-pressure plenum. The impurities are removed by a cold trap between the higher-pressure plenum and the lower-pressure plenum. The trap is an integrated unit including an inner tube and an outer tube defining between them an annulus which contains packing. The outer surface of the outer tube is cooled to a temperature such that the impurities are precipitated from the coolant. Since the packing is coldest on the outside, the precipitation progresses axially upstream to downstream and radially inwardly. The precipitation in the outer part of the annulus insulates the inner part of the annulus thermally so that the reduction of the temperature of the coolant to saturation level in the inner part is delayed precluding premature blocking of the cold trap. The cooled coolant in the annulus also precools the coolant flowing in through the inner tube.

摘要翻译： 冷却剂通过泵在较高压力的压力室和较低压力的压力室之间循环使反应器的核心循环。 杂质通过高压增压室和低压增压室之间的冷阱除去。 捕集器是一个集成的单元，包括内管和外管，它们在它们之间形成一个包含填料的环状物。 将外管的外表面冷却至使杂质从冷却剂中沉淀出的温度。 由于包装在外部是最冷的，所以沉淀在轴向上游到下游并且径向向内。 环形部分的外部部分的沉淀使得热环境的内部部分绝热，使得内部部分的冷却剂温度降低到饱和水平被延迟，从而阻止冷阱的过早阻塞。 环形空气中冷却的冷却剂还预先冷却通过内管流入的冷却剂。

公开(公告)号：US3873447A

公开(公告)日：1975-03-25

申请号：US42739273

申请日：1973-12-21

申请人： US GOVERNMENT

发明人： POHL LAWRENCE E

IPC分类号： G21C19/313 ,  B01D35/06

CPC分类号： G21C19/313

摘要： A device for removing and storing impurities found in high temperature sodium or other liquid metal loops of nuclear reactors. Utilization of the crystallizer zone is increased by organizing and directing the incoming flow in such a way that the impurities accumulate progressively from the bottom toward the top. This is accomplished by segregating the flow into several controllable sections.

摘要翻译： 用于去除和储存在核反应堆的高温钠或其他液态金属环中发现的杂质的装置。 通过组织和引导进入的流动使得杂质从底部朝向顶部逐渐累积的方式增加了结晶器区域的利用。 这通过将流分离成几个可控部分来实现。