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1. 发明授权

US11646124B2 Prevention device for LOCA and nuclear reactor having the same 有权
公开(公告)号：US11646124B2
公开(公告)日：2023-05-09
申请号：US16648769
申请日：2018-08-23
申请人： KOREA ATOMIC ENERGY RESEARCH INSTITUTE , KING ABDULLAH CITY FOR ATOMIC AND RENEWABLE ENERGY
发明人： Youngin Kim , Seungyeob Ryu , Youngmin Bae , Joohyung Moon , Hunsik Han , Soojai Shin , Cheongbong Chang , Seok Kim , Junewoo Kee , Hyunjun Cho , Minkyu Lee , Juhyeon Yoon , Hyungi Yoon
IPC分类号： G21C13/032 , G21C15/02 , F16K15/03 , G21C15/18 , F16K27/02
CPC分类号： G21C15/02 , F16K15/03 , G21C15/18 , F16K27/0209 , F16K27/0227 , G21C13/032
摘要： The present invention relates to a prevention device for loss of coolant accident (LOCA) and a nuclear reactor having the same. The prevention device for LOCA includes a nozzle portion integrally formed in a reactor vessel and having a communication hole communicating with the inside of the reactor vessel, a nozzle finishing portion assembled to the nozzle portion and an injection line for injecting a fluid to the inside of the reactor vessel respectively on both sides thereof in a communicating manner, and a check valve mounting portion installed to be embedded inside the nozzle portion and having at least one check valve opened by flow such that the fluid is injected into the reactor vessel, wherein the check valve blocks outflow of a reactor coolant from the reactor vessel in case of failure of the injection line.

2. 发明授权

US11501887B2 Replacement thermal sleeve for a reactor vessel closure head penetration adapter of control rod drive mechanism 有权
公开(公告)号：US11501887B2
公开(公告)日：2022-11-15
申请号：US17047319
申请日：2019-01-30
申请人： Westinghouse Electric Company LLC
发明人： Eric M. Benacquista , Anthony J. Mastopietro , Bryan M. Wilson , Nicholas A. Szweda
IPC分类号： G21C13/036 , G21C13/067 , G21C13/032 , G21C19/20 , G21C15/00 , G21C19/00 , G21C7/12 , G21C15/12
摘要： A replacement thermal sleeve with a flange for a reactor vessel closure head penetration adapter housing. By altering a diameter of the flange, a replacement thermal sleeve can be installed through the narrow diameter of the penetration adapter housing opening from under the reactor vessel head. The flange can be compressible or expandable or the tubular wall of the thermal sleeve can be inserted in longitudinal sections, one at a time, into an opening in the underside of the penetration head adapter and reformed within the opening when fully inserted.

3. 发明授权

US11232874B2 Multiple-path flow restrictor nozzle 有权
公开(公告)号：US11232874B2
公开(公告)日：2022-01-25
申请号：US15845277
申请日：2017-12-18
申请人： GE-Hitachi Nuclear Energy Americas LLC
发明人： Joel Patrick Melito , Randy Morris Brown , Zhe Zhang , Robin D. Sprague , Adrian M. Mistreanu , Gerald A. Deaver
IPC分类号： G21C13/02 , G21C15/16 , F22B37/26 , G21C13/032 , B05B7/06 , B05B1/14 , B05B1/00
摘要： A flow restrictor nozzle for a pressurized vessel of a nuclear reactor may comprise a nozzle body including an inlet face and an outlet face. The nozzle body may define a plurality of internal flow paths extending from the inlet face to the outlet face. Each of the plurality of internal flow paths may include a convergent section, a throat section, and a divergent section.

4. 发明授权

US10964437B2 Managing dynamic forces on a nuclear reactor system 有权
公开(公告)号：US10964437B2
公开(公告)日：2021-03-30
申请号：US16037834
申请日：2018-07-17
申请人： NuScale Power, LLC
发明人： Tamas Liszkai
IPC分类号： G21C9/04 , G21C13/024 , E04H9/02 , G21C9/00 , G21C13/032 , G21C13/04 , G21D1/00 , G21D3/04 , G21C1/32 , F16F7/00 , F16F7/12 , E04H9/00
摘要： A nuclear reactor seismic isolation assembly includes an enclosure that defines a volume; a plastically-deformable member mounted, at least in part, within the volume; and a stretching member moveable within the enclosure to plastically-deform the plastically-deformable member in response to a dynamic force exerted on the enclosure.

5. 发明授权

US10190712B2 Sliding duct connection 有权
公开(公告)号：US10190712B2
公开(公告)日：2019-01-29
申请号：US13632188
申请日：2012-10-01
申请人： WESTINGHOUSE ELECTRIC COMPANY LLC
发明人： David Strutt
IPC分类号： F16L37/26 , F16L27/12 , F16L25/00 , G21C13/032
摘要： A duct connection including a first flange configured to couple with a first duct and a slip fit attached to the first flange. The slip fit has a first portion extending from the first flange substantially perpendicular with respect to the first flange and a second portion extending from the first portion of the slip fit substantially parallel with respect to the first flange. The slip fit and the first flange form a receiving area structured such that a portion of a corresponding flange included on a second duct can slide into the receiving area.

6. 发明授权

US5267275A Apparatus for sealing a joint 失效
标题翻译：用于密封接头的装置
公开(公告)号：US5267275A
公开(公告)日：1993-11-30
申请号：US679454
申请日：1991-04-02
申请人： Edward F. Lamoureux
发明人： Edward F. Lamoureux
IPC分类号： G21C13/032 , G21C13/00
CPC分类号： G21C13/032 , G21Y2002/104 , G21Y2002/206 , G21Y2002/303 , G21Y2004/301 , Y02E30/40
摘要： Apparatus for sealing a joint between an inclined base surface having a leak path and a mating end surface of a hollow body surrounding the leak path. Compression gasket means receive an asymmetric preload force applied through the hollow body from an environmental pressure preloading element having a variable spring constant in register with the joint. The preloading element is a ring-shaped body of a given thickness of an asymmetric radial structure defined by a plurality of unlike radially inwardly directed through slots open to its periphery and axially stacked.
摘要翻译：用于密封具有泄漏路径的倾斜基面和围绕泄漏路径的中空体的配合端面之间的接头的装置。压缩垫圈装置从具有与接头对准的可变弹簧常数的环境压力预加载元件接收通过中空体施加的不对称预加载力。预加载元件是具有不对称径向结构的给定厚度的环形主体，其由通向其周边并且轴向堆叠的多个不同的径向向内通过的狭槽限定。

7. 发明授权

US4948938A Process for fastening a pipe by welding to a thick wall member such as a pipe-carrying shell of a nuclear reactor vessel 失效
标题翻译：通过焊接将管子紧固到诸如核反应堆容器的管道承载壳体的厚壁构件上的方法
公开(公告)号：US4948938A
公开(公告)日：1990-08-14
申请号：US258348
申请日：1988-10-17
申请人： Alain Vignes
发明人： Alain Vignes
IPC分类号： G21C13/00 , B23K9/00 , B23K9/028 , B23K15/00 , B23K15/04 , B23K33/00 , F16L41/08 , G21C13/032
CPC分类号： F16L41/084 , B23K15/0093 , B23K15/04 , G21C13/032 , Y02E30/40
摘要： A connecting surface (24) of frusto-conical shape whose axis coincides with the axis of a pipe (23), having an apex semi-angle close to 45.degree. and a section of transverse dimension decreasing towards the end of the pipe (23) is produced on an end part of the pipe (23). A connecting surface (25) of frusto-conical shape corresponding to the shape of the connecting surface (24) of the pipe is produced on the wall member (20). The connecting surfaces (24, 25) are placed so that they coincide, and the pipe and the wall member are welded by means of an electron beam in a single pass and without filler metal, along their connecting surfaces (24, 25) from the side of the wall (20) onto which the widened part of the connecting surface (25) of the opening (22) opens. The invention applies particularly to the fastening of pipes (23) to a pipe-carrying shell (20) of a pressurized-water nuclear reactor vessel.
摘要翻译：截头圆锥形状的连接表面（24）的轴线与管道（23）的轴线重合，其具有接近45°的顶点半角和朝向管道（23）端部的横向尺寸减小的部分，在管道（23）的端部产生。在壁构件（20）上产生与管子的连接面（24）的形状对应的截头圆锥形状的连接面（25）。连接表面（24,25）被放置成使得它们重合，并且管和壁构件沿着它们的连接表面（24,25）沿着它们的连接表面（24,25）以单次通过并且没有填充金属被焊接，（22）的连接表面（25）的加宽部分打开的壁（20）的一侧。本发明特别适用于将管道（23）紧固到加压水核反应堆容器的管道承载壳体（20）上。

8. 发明授权

US4315644A Multishell pipe bend 失效
标题翻译：多壳管弯头
公开(公告)号：US4315644A
公开(公告)日：1982-02-16
申请号：US175209
申请日：1979-10-18
申请人： Walter Jansing
发明人： Walter Jansing
IPC分类号： G21C19/28 , F16L43/00 , F16L51/04 , G01C3/02 , G21C13/032
CPC分类号： F16L51/04 , G01C3/02 , G21C13/032 , Y02E30/40
摘要： The multiple wall angle connection allows to connect pipes and containers with great flexibility and a good compensation of the heat expansion. To connect two pipes (1, 2), for example, three coaxial angle connections (3, 4, 5) are interconnected. The internal connection (5) is connected to the first pipe (1) and the external connection (3) to the second pipe (2). The connections are interconnected by junction pieces (7) of semi-toric shape arranged at each side, at respective ends. Straight pipe portions (9-13 and 19-23) can be provided between the connections and the junction pieces. They can be cylindrical or conic. Control apparatus can be inserted within the space comprised between the different connections.
摘要翻译：多壁角连接允许连接管道和容器具有很大的灵活性和良好的热膨胀补偿。为了连接两个管道（1,2），例如，三个同轴角度连接件（3,4,5）互连。内部连接（5）连接到第一管（1）和外部连接（3）连接到第二管（2）。这些连接通过在每一侧布置在相应端部处的半复曲面形状的连接片（7）互连。可以在连接件和连接件之间设置直管部分（9-13和19-23）。它们可以是圆柱形或圆锥形。控制装置可以插入在不同连接之间的空间内。

9. 发明授权

US3953289A Device for supporting a nuclear reactor core 失效
标题翻译：用于支撑核反应堆核心的装置
公开(公告)号：US3953289A
公开(公告)日：1976-04-27
申请号：US434696
申请日：1974-01-18
申请人： Didier Costes
发明人： Didier Costes
IPC分类号： G21C19/28 , G21C13/024 , G21C13/032 , G21C15/12
CPC分类号： G21C13/032 , G21C13/024 , Y02E30/40
摘要： The core of a light-water reactor which is enclosed in a prestressed concrete pressure vessel and held within a diffuser basket is supported by a device consisting of a cylindrical shell which surrounds the basket and is rigidly fixed to a plurality of frusto-conical skirts having concurrent axes and located substantially at right angles to the axis of the reactor core. The small base of each skirt is rigidly fixed to the shell and the large base is anchored in openings formed in the reactor vessel for the penetration of coolant inlet and outlet pipes. The top portion of the shell is secured to the top portion of the diffuser basket, a flat surface being formed on the shell at the point of connection with each frusto-conical skirt so as to ensure rigid suspension while permitting of thermal expansion.
摘要翻译：封闭在预应力混凝土压力容器中并保持在扩散器篮内的轻水反应堆的核心由一个由围绕篮子的圆柱形外壳组成的装置支撑，并且刚性地固定在多个截头圆锥形裙边上，并联轴线并且基本上与反应堆芯的轴线成直角。每个裙部的小底座刚性地固定到壳体上，并且大的底座被锚定在形成在反应器容器中的开口中，用于穿透冷却剂入口和出口管。壳体的顶部固定到扩散器篮的顶部，在与每个截头圆锥形裙部的连接点处形成在壳体上的平坦表面，以便确保刚性悬挂同时允许热膨胀。

10. 发明授权

US11538598B2 Flow restricting slip joint clamps and methods for use in a nuclear reactor jet pump 有权
公开(公告)号：US11538598B2
公开(公告)日：2022-12-27
申请号：US16173117
申请日：2018-10-29
申请人： GE-Hitachi Nuclear Energy Americas LLC
发明人： Hampton W. Lane , Bret E. Nelson , Brandon J. Schoonmaker , Lee J. Andre , Hugo P. Rooney , David J. Bell
IPC分类号： F16L23/12 , G21C13/032 , G21C15/25 , F16L23/028 , F04F5/46
摘要： Clamps can be secured to a slip joint and limit flow through the same by seating on a diffuser axially regardless of wear and damage in the slip joint. An extension from the clamp seats to the inlet mixer. These extensions can be adjusted from outside the clamp to achieve an individual preload or flow limitation through the slip joint. The extension may be an O-ring or other shape. A biasing drive may connect to and move the extension from an outside surface of the clamp. The biasing drive may include a threaded cap in an outer groove that is linked to a plunger via a spring. Clamps are fabricated of materials that maintain their physical properties when exposed to an operating nuclear reactor environment and may be relatively rigid and resilient metals.

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