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1. 发明授权

US11848111B2 Double containment nuclear power reactor with passive cooling and radiation scrubbing 有权
公开(公告)号：US11848111B2
公开(公告)日：2023-12-19
申请号：US17138217
申请日：2020-12-30
申请人： Palvannanathan Ganesan
发明人： Palvannanathan Ganesan
IPC分类号： G21C15/18 , G21C11/02 , G21C13/10 , G21C15/12 , G21C13/02 , G21D5/08
CPC分类号： G21C15/18 , G21C11/02 , G21C13/022 , G21C13/10 , G21C15/12 , G21D5/08
摘要： A nuclear power reactor which includes passive cooling and radiation scrubbing. The reactor includes a first containment member which is buried in the ground. A second containment member is positioned in the first containment member and has a reactor vessel therein. The discharge side of the reactor vessel is connected to a heat exchanger which drives a turbine which drives a device such as a generator. A source of water is provided which gravity feeds cooling water to the interior of the first containment member in the event of reactor overheating or over-pressurization. A radiation scrubber is provided for scrubbing radiation which may be in the first containment member or the second containment member.

2. 发明授权

US09922740B2 Nuclear power generation system 有权
公开(公告)号：US09922740B2
公开(公告)日：2018-03-20
申请号：US14437897
申请日：2013-10-25
申请人： SMR Inventec, LLC
发明人： Krishna P. Singh , Joseph Rajkumar
IPC分类号： G21D5/14 , G21D1/00 , G21C15/26 , G21C13/10 , G21D5/16
CPC分类号： G21D1/006 , G21C13/10 , G21C15/26 , G21D5/14 , G21D5/16 , Y02E30/40
摘要： A nuclear power generation system and related power cycle are disclosed, in one embodiment, the system includes primary coolant circulation through a hydraulically interconnected reactor containing nuclear fuel and a steam generating vessel collectively defining a steam supply system. Liquid secondary coolant for the power cycle flows through the steam generating vessel and is converted to steam by the primary coolant to drive a low pressure turbine of a turbine-generator set. Steam exiting the turbine is condensed and heated prior to return to the steam supply system, thereby completing a secondary coolant flow loop. In one embodiment, a majority of the secondary coolant heating occurs within the steam generating vessel via heat exchange with the primary coolant rather than externally in the secondary coolant flow loop. This creates a temperature differential between the primary and secondary coolant sufficient to create natural thermally induced convective circulation of the primary coolant.

3. 发明申请

US20180012669A1 SYSTEMS AND METHODS FOR ENHANCING ISOLATION OF HIGH-TEMPERATURE REACTOR CONTAINMENTS 审中-公开
公开(公告)号：US20180012669A1
公开(公告)日：2018-01-11
申请号：US15684062
申请日：2017-08-23
申请人： THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
发明人： Per F. Peterson
IPC分类号： G21C11/08 , G21C13/02 , G21C15/12 , G21C13/10 , G21C15/18
CPC分类号： G21C11/08 , G21C13/02 , G21C13/10 , G21C15/12 , G21C15/18 , Y02E30/35
摘要： A high-temperature containment-isolation system for transferring heat from a nuclear reactor containment to a high-pressure heat exchanger is presented. The system uses a high-temperature, low-volatility liquid coolant such as a molten salt or a liquid metal, where the coolant flow path provides liquid free surfaces a short distance from the containment penetrations for the reactor hot-leg and the cold-leg, where these liquid free surfaces have a cover gas maintained at a nearly constant pressure and thus prevent high-pressures from being transmitted into the reactor containment, and where the reactor vessel is suspended within a reactor cavity with a plurality of refractory insulator blocks disposed between an actively cooled inner cavity liner and the reactor vessel.

4. 发明申请

US20150255181A1 NUCLEAR POWER GENERATION SYSTEM 有权
标题翻译：核发电系统
公开(公告)号：US20150255181A1
公开(公告)日：2015-09-10
申请号：US14437897
申请日：2013-10-25
申请人： SMR INVENTEC, LLC
发明人： Krishna P. Singh , Joseph Rajkumar
IPC分类号： G21D1/00 , G21C13/10 , G21C15/26 , G21D5/16
CPC分类号： G21D1/006 , G21C13/10 , G21C15/26 , G21D5/14 , G21D5/16 , Y02E30/40
摘要： A nuclear power generation system and related power cycle are disclosed, in one embodiment, the system includes primary coolant circulation through a hydraulically interconnected reactor containing nuclear fuel and a steam generating vessel collectively defining a steam supply system. Liquid secondary coolant for the power cycle flows through the steam generating vessel and is converted to steam by the primary coolant to drive a low pressure turbine of a turbine-generator set. Steam exiting the turbine is condensed and heated prior to return to the steam supply system, thereby completing a secondary coolant flow loop. In one embodiment, a majority of the secondary coolant heating occurs within the steam generating vessel via heat exchange with the primary coolant rather than externally in the secondary coolant flow loop. This creates a temperature differential between the primary and secondary coolant sufficient to create natural thermally induced convective circulation of the primary coolant
摘要翻译：在一个实施例中，公开了核发电系统和相关的动力循环，该系统包括通过包含核燃料的液压互连反应堆的主要冷却剂循环和共同限定蒸汽供应系统的蒸汽发生容器。用于动力循环的液体二次冷却剂流过蒸汽发生容器，并通过主冷却剂转化为蒸汽以驱动涡轮发电机组的低压涡轮机。离开涡轮机的蒸汽在返回到蒸汽供应系统之前被冷凝和加热，从而完成二次冷却剂流动循环。在一个实施例中，二次冷却剂加热的大部分通过与主冷却剂的热交换而不是在二次冷却剂流动回路中的外部在蒸汽发生容器内发生。这在初级冷却剂和次级冷却剂之间产生了温差，足以产生主冷却剂的自然热诱导的对流循环

5. 发明申请

US20140161218A1 RADIOACTIVE CAPTURE SYSTEM FOR SEVERE ACCIDENT CONTAINMENT OF LIGHT WATER REACTORS (LWRS), AND METHOD THEREOF 有权
标题翻译：用于严重意外容纳轻水反应堆（LWRS）的放射性捕获系统及其方法
公开(公告)号：US20140161218A1
公开(公告)日：2014-06-12
申请号：US13710766
申请日：2012-12-11
申请人： Eric P. LOEWEN , Jose Maria CARO , Derek BASS
发明人： Eric P. LOEWEN , Jose Maria CARO , Derek BASS
IPC分类号： G21C19/307
CPC分类号： G21C9/00 , G21C9/001 , G21C9/004 , G21C13/10 , G21C19/30 , G21C19/307 , G21D1/00 , G21D3/04 , G21F9/02 , G21F9/04 , G21F9/28 , Y02E30/40
摘要： A system and a method for capturing gaseous, particulate and liquid radioactive material released from primary containment of a Light Water Reactor (LWR) during severe accident conditions. The system includes a below-grade media area, connected to a reactor pressure vessel (RPV) and portions of primary containment, providing varying levels of adsorption/absorption of the radioactive material. The media area is located on-site to offer a passive, self-regulating structure for stabilizing a nuclear reactor. The capture system provides for liquid drainage and gaseous venting of the radioactive material, and a treatment capable of treating the media following stabilization of the reactor.
摘要翻译：一种在严重事故条件下捕获从轻水反应堆（LWR）初级容纳物释放的气态，颗粒状和液体放射性物质的系统和方法。该系统包括连接到反应堆压力容器（RPV）的低级介质区域和初级容纳部分，提供放射性物质的吸附/吸收的不同水平。媒体区域位于现场，提供用于稳定核反应堆的被动，自调节结构。捕获系统提供放射性物质的液体排放和气体排放，以及在反应器稳定后能够处理介质的处理。

6. 发明授权

US5791107A Building with a sealing element 失效
标题翻译：建筑用密封元件
公开(公告)号：US5791107A
公开(公告)日：1998-08-11
申请号：US442804
申请日：1995-05-17
申请人： Rudiger Danisch , Manfred Hummer
发明人： Rudiger Danisch , Manfred Hummer
IPC分类号： G21C9/00 , G21C13/10 , E04B1/74 , G21C13/02
CPC分类号： G21C13/10 , G21C9/001 , G21Y2002/50 , G21Y2004/303 , Y02E30/40
摘要： The invention pertains to a building, particularly in the context of a nuclear installation. The building is formed with an outer shell and an inner shell which form an intermediate space therebetween. A sealing element is disposed in the intermediate space. The sealing element is gas tight, it envelopes the inner shell, and it is largely freely movable perpendicularly to the surfaces of the shells defining the intermediate space. Pressure fluctuations, particularly pressure waves, originating on the inside of the building are received and equalized by the sealing element, while the gas-tightness of the sealing element is largely assured.
摘要翻译：本发明涉及一种建筑物，特别是在核设施的背景下。该建筑物形成有在其间形成中间空间的外壳和内壳。密封元件设置在中间空间中。密封元件是气密的，它包封内壳，并且它大体上可自由地垂直于限定中间空间的壳体的表面移动。起始于建筑物内部的压力波动，特别是压力波被密封元件容纳并均衡，同时密封元件的气密性大大保证。

7. 发明授权

US5057271A Protection system for the basemat reactor containment buildings in nuclear power stations 失效
标题翻译：核电站基地反应堆容器建筑保护系统
公开(公告)号：US5057271A
公开(公告)日：1991-10-15
申请号：US508074
申请日：1990-04-10
申请人： Arnaldo Turricchia
发明人： Arnaldo Turricchia
IPC分类号： G21C9/016 , G21C13/10
CPC分类号： G21C9/016 , G21C13/10 , Y02E30/40
摘要： A protection system for the basemat of reactor containment buildings in nuclear power stations. The system comprises a structure located in a cavity below the reactor vessel and submerged in water. The structure comprises staggered layers of stainless steel beams for intercepting molten material escaping from the reactor vessel during meltdown of the reactor core. The system is designed so that the molten material is distributed in thin layers over wings of the beams and transfers its heat to the surrounding water thus affording a rapid quenching of the molten core and safeguarding the integrity of the basemat.

8. 发明授权

US4889682A Passive cooling system for nuclear reactor containment structure 失效
标题翻译：核反应堆遏制结构被动冷却系统
公开(公告)号：US4889682A
公开(公告)日：1989-12-26
申请号：US196581
申请日：1988-05-20
申请人： Perng-Fei Gou , Gentry E. Wade
发明人： Perng-Fei Gou , Gentry E. Wade
IPC分类号： G21C9/004 , G21C13/00 , G21C13/10
CPC分类号： G21C13/10 , G21C9/004 , Y02E30/40
摘要： A passive cooling system for the contaminant structure of a nuclear reactor plant providing protection against overpressure within the containment attributable to inadvertent leakage or rupture of the system components. The cooling system utilizes natural convection for transferring heat imbalances and enables the discharge of irradiation free thermal energy to the atmosphere for heat disposal from the system.

9. 发明授权

US4722823A Nuclear power plant providing a function of suppressing the deposition of radioactive substance 失效
标题翻译：提供抑制放射性物质沉积功能的核电站
公开(公告)号：US4722823A
公开(公告)日：1988-02-02
申请号：US525889
申请日：1983-08-24
申请人： Takashi Honda , Toshio Kawakami , Masakiyo Izumiya , Akira Minato , Katsumi Ohsumi
发明人： Takashi Honda , Toshio Kawakami , Masakiyo Izumiya , Akira Minato , Katsumi Ohsumi
IPC分类号： G21D1/00 , G21C13/087 , G21C13/10 , G21F9/00 , G21C11/00
CPC分类号： G21C13/087 , G21C13/10 , Y02E30/40
摘要： A nuclear power plant using a structural material consisting of metal which comes into contact with a liquid in which radioactive substances are dissolved has a function to suppress the deposition of the radioactive substances. In this function, metal elements constituting the surface layer of the structural material which comes into contact with the liquid are oxidized by injecting oxidizing agents from outside, thereby preliminarily producing an oxide film. The oxidizing agents comprise at least one kind selected from the group consisting of oxygen, hydrogen peroxide, chromate, nitrite, molybdate, tungstate and ferrate. Particularly, by suppressing the deposition of radioactive substances on a stainless steel, the dose rate of exposure of workers is effectively reduced.
摘要翻译：使用与溶解有放射性物质的液体接触的金属构成的结构材料的核电站具有抑制放射性物质沉积的功能。在该功能中，构成与液体接触的结构材料的表面层的金属元素通过从外部注入氧化剂而被氧化，从而预先生成氧化膜。氧化剂包括选自氧，过氧化氢，铬酸盐，亚硝酸盐，钼酸盐，钨酸盐和高铁酸盐中的至少一种。特别是通过抑制放射性物质在不锈钢上的沉积，有效地降低了工作人员的接触剂量。

10. 发明授权

US11763954B2 Integrated passive cooling containment structure for a nuclear reactor 有权
公开(公告)号：US11763954B2
公开(公告)日：2023-09-19
申请号：US17730420
申请日：2022-04-27
申请人： GE-Hitachi Nuclear Energy Americas LLC
发明人： David H. Hinds
IPC分类号： G21C13/10 , G21C15/12 , E04H7/18 , G21C13/028 , G21C13/093 , G21C13/087
CPC分类号： G21C15/12 , E04H7/18 , G21C13/028 , G21C13/093 , G21C13/087 , G21C13/10
摘要： An integrated passive cooling containment structure for a nuclear reactor includes a concentric arrangement of an inner steel cylindrical shell and an outer steel cylindrical shell that define both a lateral boundary of a containment environment of the nuclear reactor that is configured to accommodate a nuclear reactor and an annular gap space between the inner and outer steel cylindrical shells, a concrete donut structure at a bottom of the annular gap space, and a plurality of concrete columns spaced apart azimuthally around a circumference of the annular gap and extending in parallel from a top surface of the concrete donut structure to a top of the annular gap space. The outer and inner steel cylindrical shells and the concrete donut structure at least partially define one or more coolant channels extending through the annular gap space.

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