-
公开(公告)号：US20230343476A1
公开(公告)日：2023-10-26
申请号：US18024246
申请日：2021-11-09
发明人： Aleksandr Stalevich SIDOROV , Nadezhda Vasilievna SIDOROVA , Tatyana Yaropolkovna DZBANOVSKAYA , Kseniya Konstantinovna BADESHKO
摘要： Systems for ensuring safety of nuclear power plants (NPPs). The systems enhance reliability of the corium localizing and cooling system of a nuclear reactor. The corium localizing and cooling system comprise thermal protection suspended to the cantilever truss, the membrane installed between the cantilever truss and the vessel, and the bandage plates installed on the external and internal side of the membrane. The systems prevent destruction of the corium localizing and cooling system within the junction area between the vessel for the corium receipt and distribution and the cantilever truss under the conditions on non-axisymmetric corium escape from the reactor pressure vessel and falling of the reactor pressure vessel head fragments into the vessel at the initial stage of the corium cooling with water, and consequently to prevent any ingress of water intended for external cooling of the vessel into the vessel.
-
公开(公告)号：US20230268086A1
公开(公告)日：2023-08-24
申请号：US18024247
申请日：2021-11-09
发明人： Aleksandr Stalevich SIDOROV , Nadezhda Vasilievna SIDOROVA , Tatyana Yaropolkovna DZBANOVSKAYA , Kseniya Konstantinovna BADEZHKO
IPC分类号： G21C9/016
CPC分类号： G21C9/016
摘要： Systems ensuring safety of nuclear power plants (NPPs) used in severe accidents resulting in destruction of the reactor pressure vessel and containment. The technical result of the claimed invention is to enhance reliability of the corium localizing and cooling system of a nuclear reactor. The technical result is achieved due to use of the membrane installed between the cantilever truss and the vessel, bandage plates installed on the external and internal side of the membrane, the hydraulic gas-dynamic damper installed on the internal side of the membrane in the corium localizing and cooling system of a nuclear reactor enabling to prevent any destruction within the leak-tight junction area between the multi-layered vessel and the cantilever truss under the conditions with non-axisymmetric corium flow from the reactor pressure vessel and falling of reactor pressure vessel head fragments into the vessel at the initial stage of the corium cooling with water.
-
公开(公告)号：US20170358373A1
公开(公告)日：2017-12-14
申请号：US15616423
申请日：2017-06-07
发明人： Takashi SATO , Keiji MATSUMOTO , Masato YAMADA
摘要： According to an embodiment, a core catcher has: a main body including: a distributor arranged on a part of a base mat in the lower dry well, a basin arranged on the distributor, cooling channels arranged on a lower surface of the basin connected to the distributor and extending in radial directions, and a riser connected to the cooling channels and extending upward; a lid connected to an upper end of the riser and covering the main body; a cooling water injection pipe open, at one end, to the suppression pool, connected at another end to the distributor; and chimney pipes connected, at one end, to the riser, another end being located above the upper end of the riser and submerged and open in the pool water.
-
公开(公告)号：US20170323694A1
公开(公告)日：2017-11-09
申请号：US15536975
申请日：2015-11-16
摘要： The invention relates to safety systems for nuclear power plants (NPP), and can be used in the event of reactor vessel and NPP containment failure. The melt cooling and confinement system includes a cone-shaped guide plate installed under the reactor vessel bottom, cantilever girder installed under the guide plate and supporting the same, core catcher installed under the cantilever girder and equipped with cooled cladding in form of a multi-layer vessel for protection of the external heat-exchange wall from dynamic, thermal and chemical impacts, and filler material for melt dilution inside the multi-layer vessel. The said multi-layer vessel contains external and internal metal walls with filler of poorly heat-conductive in relation to the wall material in between. Filler thickness hfil shall meet the following requirement: 0.8 hext
-
公开(公告)号：US20140321595A1
公开(公告)日：2014-10-30
申请号：US13824588
申请日：2013-01-18
申请人： DCNS
发明人： Geoffrey Haratyk
IPC分类号： G21C9/004
CPC分类号： G21C9/004 , B63B35/00 , B63B2035/4446 , B63G8/00 , G21C9/016 , G21C11/04 , G21C15/18 , G21D3/06 , Y02E30/40
摘要： The submerged or underwater electricity production module according to the invention, of the type including means in the form of an elongated cylindrical box (12) in which means are integrated forming an electricity production unit including means forming a nuclear boiler (30), associated with electricity production means (37) connected to an external electricity distribution station by electrical cables, is characterized in that the nuclear boiler-forming means (30) are placed in a dry chamber (19) of the reactor compartment (18) associated with the chamber forming a safety water storage reservoir (20) of the reactor whereof at least the radial wall (53) is in a heat exchange relationship with the marine environment and in that the nuclear boiler-forming means (30) include a pressurizer (33) connected by depressurizing means (80) to the safety water storage reservoir chamber (20) of the reactor.
摘要翻译： 根据本发明的淹没或水下电力生产模块，其类型包括细长圆柱形箱体（12）形式的装置，其中装置整合形成电力生产单元，包括形成核燃机（30）的装置，与 通过电缆连接到外部配电站的电力生产装置（37）的特征在于，核燃料锅炉形成装置（30）被放置在与室相关联的反应室（18）的干燥室（19）中 形成至少所述径向壁（53）与所述海洋环境的热交换关系的所述反应器的安全储水箱（20），并且所述核燃料成型装置（30）包括连接的加压器（33） 通过减压装置（80）到达反应器的安全储水室（20）。
-
公开(公告)号：US20130272472A1
公开(公告)日：2013-10-17
申请号：US13647887
申请日：2012-10-09
申请人： Kazuyoshi AOKI , Mika Tahara , Ken Okuda , Yasunobu Fujiki , Hisaki Sato
发明人： Kazuyoshi AOKI , Mika Tahara , Ken Okuda , Yasunobu Fujiki , Hisaki Sato
IPC分类号： G21C9/016
摘要： According to an embodiment, a molten-core retention structure comprises the following inside a reactor vessel that contains a reactor core: a bottom support plate, in which vertically penetrating flow holes are formed, that is provided beneath the core and supports the core; a bottom support plate support that is affixed to the reactor vessel and supports the bottom support plate; a thermally insulating spacer; a reticulated heat path that is affixed to the bottom support plate support with the thermally insulating spacer interposed therebetween and contacts the bottom support plate; and vertical heat paths that extend downwards from the reticulated heat path. The reticulated heat path and the vertical heat paths have higher coefficients of thermal conductivity than the thermally insulating spacer.
摘要翻译： 根据一个实施方案，熔芯保持结构在反应器容器内部包含以下物质：反应堆芯：底部支撑板，其中形成有垂直穿透的流动孔，其设置在芯的下方并支撑芯; 底部支撑板支撑件，其固定到反应堆容器并支撑底部支撑板; 绝热垫片; 网状热路，其与隔热隔离物固定在底部支撑板支撑件上并与底部支撑板接触; 以及从网状热路向下延伸的垂直热路。 网状热路径和垂直热路径具有比隔热间隔物更高的导热系数。
-
公开(公告)号：US20130170598A1
公开(公告)日：2013-07-04
申请号：US13680512
申请日：2012-11-19
IPC分类号： G21C9/016
摘要： According to an embodiment, a nuclear reactor containment vessel is provided with a device for holding a molten material of the reactor core and with spacers. The device is installed on the pedestal floor. A holding container which is open upward and a water supply container which is provided below the holding container are provided inside the outer peripheral surface. A water supply flow path extends to the water supply container from the gap between the inner surface of the pedestal side wall and the outer peripheral surface of the device for holding a molten material of the reactor core. The spacers are engaged with the upper end of an outer riser extend between the outside of the outer riser and the inner surface of the pedestal side wall, and prevent the eccentricity of the device.
摘要翻译： 根据实施例，核反应堆安全壳容纳有用于保持反应堆芯的熔融材料和间隔物的装置。 该设备安装在基座上。 向上开放的保持容器和设置在保持容器下方的供水容器设置在外周面内。 供水流路从基座侧壁的内表面与用于保持反应堆芯的熔融材料的装置的外周面之间的间隙延伸到供水容器。 间隔件与外立管的上端接合，该外立管在外立管的外侧和基座侧壁的内表面之间延伸，并且防止装置的偏心。
-
8.发明申请CORIUM COOLING STRUCTURE, REACTOR CONTAINMENT VESSEL PROVIDED WITH THE SAME, AND NUCLEAR POWER PLANT PROVIDED WITH THE SAME 审中-公开铜冷却结构，与其同时提供的反应器容纳船，以及与其同时提供的核电厂公开(公告)号：US20120269312A1
公开(公告)日：2012-10-25
申请号：US13512772
申请日：2010-08-24
IPC分类号： G21C9/016
摘要： An object is to provide a corium cooling structure that is capable of accumulating corium and debris that have flowed out from a reactor in small divided portions and of sufficiently cooling the high-temperature corium and debris, a reactor containment vessel provided with the same, and a nuclear power plant provided with the same. A capture portion that captures the corium that has flowed out from a reactor and a plurality of pipe portions that are provided in a coolant storing portion and into which the corium flows via the capture portion are provided.
摘要翻译： 目的是提供一种能够积聚从反应器以小分割部分流出并充分冷却高温ium和碎屑的ium和碎屑的ium冷却结构，设置有ium和碎屑的反应堆遏制容器，以及 提供同样的核电厂。 捕获部分，其捕获已经从反应器流出的corium和设置在冷却剂存储部分中并且通过捕获部分流过其中的多个管部分。
-
公开(公告)号：US20080212732A1
公开(公告)日：2008-09-04
申请号：US11994356
申请日：2006-06-24
申请人： Bruno Wilhelmi
发明人： Bruno Wilhelmi
IPC分类号： G21C9/016
摘要： The invention relates to a Tub-like retainer for a nuclear core melt, comprising an outer envelope with a multi-layer lining along its inner surface, wherein said lining comprises, from inside to outside, a monolithic sacrificial layer, a layer made of high temperature resistant shaped parts and a monolithic filling layer between said envelope and said layer made of shaped parts.
摘要翻译： 本发明涉及一种用于核芯熔体的管状保持器，其包括沿着其内表面具有多层衬里的外封套，其中所述衬里从内到外包括单片牺牲层，由高层制成的层 所述外壳与由成形部件制成的所述层之间的整体填充层。
-
公开(公告)号：US20070138072A1
公开(公告)日：2007-06-21
申请号：US11590608
申请日：2006-10-31
申请人： Alan Bilannin
发明人： Alan Bilannin
CPC分类号： B01D24/008 , E02B5/085 , G21C9/016 , Y02E30/40
摘要： A trash rack for an emergency core cooling system of a nuclear power plant comprises at least one wire-mesh upright screen for filtering debris from coolant flowing in the cooling system. The upright screen is mounted in the coolant flow path with its bottom edge on the floor of an area forming part of the cooling system and a top edge is disposed above the floor at a height less than the level to which the coolant can be expected to rise during a loss of cooling accident. The trash rack also uniquely includes a wire-mesh roof screen that has a downstream edge mated with the top edge of the upright screen and extending upstream thereof to an upstream end spaced from the floor, thereby presenting an unobstructed opening between the floor and the upstream edge of the roof screen.
摘要翻译： 用于核电站的应急核心冷却系统的垃圾架包括至少一个丝网直立屏幕，用于从在冷却系统中流动的冷却剂中过滤碎屑。 立式屏幕安装在冷却剂流动路径中，其底部边缘位于形成冷却系统的一部分的区域的地板上，并且顶部边缘设置在低于可预期冷却剂水平的高度的地板上方 在冷却事故损失时上升。 垃圾架还独特地包括丝网屋顶筛，其下游边缘与直立屏幕的顶部边缘配合并且在其上游延伸到与地板间隔开的上游端，从而在地板和上游之间呈现无障碍的开口 屋顶屏幕的边缘。
-
-
-
-
-
-
-
-
-
搜索结果
149 条记录 (耗时 0.023 秒)
