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1. 发明公开

EP3905262A2 MELT CONFINEMENT DEVICE 审中-公开
公开(公告)号：EP3905262A2
公开(公告)日：2021-11-03
申请号：EP19902850.7
申请日：2019-12-25
申请人： Joint Stock Company "Atomenergoproekt" , Science and Innovations - Nuclear Industry Scientific Development, Private Enterprise
发明人： SIDOROV, Aleksandr Stalevich , DZBANOVSKAYA, Tatyana Yaropolkovna , SIDOROVA, Nadezhda Vasilievna
IPC分类号： G21C9/016
摘要： The invention relates to the field of nuclear energy, in particular, to systems that ensure the safety of nuclear power plants (NPP), and can be used in severe accidents that lead to reactor pressure vessel and its containment destruction.
The technical result of the claimed invention is to increase the safety of a nuclear power plant by excluding the release of liquid and solid radioactive materials (corium) outside the device for confining core melt in the event of a severe accident with the core melt discharge out of the nuclear reactor.
The object of the current invention is to improve the efficiency and reliability of the the device for confining core melt by improving the corium cooling conditions.
The set object is solved based on the use of the filler formed in the cassettes, the upper and the lower ones. The cassettes have vertical and horizontal channels that ensure uniform distribution of the melt in the cooled body.

2. 发明公开

EP3846179A1 SYSTEM FOR CONFINING AND COOLING MELT FROM THE CORE OF A WATER-MODERATED NUCLEAR REACTOR 审中-公开
公开(公告)号：EP3846179A1
公开(公告)日：2021-07-07
申请号：EP18931944.5
申请日：2018-12-28
申请人： Joint Stock Company "Atomenergoproekt" , Science and Innovations - Nuclear Industry Scientific Development, Private Enterprise
发明人： SIDOROV, Aleksandr Stalevich , DZBANOVSKAYA, Tatyana Yaropolkovna , ROSHCHIN, Mihail Aleksandrovich
IPC分类号： G21C9/016
摘要： The invention relates to nuclear engineering, in particular, to systems that ensure the safety of nuclear power plants (NPP), and can be used in severe accidents that lead to the core meltdown, nuclear reactor pressure vessel destruction and the release of the melt into the space of the NPP containment.
The technical result is the increase of the reliability of the water-cooled water-moderated nuclear reactor core melt cooling and confinement system.
The object to be solved by the claimed invention is to increase the efficiency of heat removal from the melt and increase the structure reliability.
The designated object is solved by using the damper installed inside the melt trap body as part of the water-cooled water-moderated nuclear reactor core melt cooling and confinement system.

3. 发明授权

EP3291242B1 PASSIVELY OPERATING COOLING DEVICE FOR EX-VESSEL CORIUM 有权
公开(公告)号：EP3291242B1
公开(公告)日：2019-12-18
申请号：EP15890804.6
申请日：2015-05-13
申请人： Korea Hydro & Nuclear Power Co., Ltd.
发明人： KIM, Yong Su , HWANG, Do Hyeon , LEE, Geun Sung , KIM, Gee Hyan
IPC分类号： G21C15/18 , G21C9/016

4. 发明公开

EP3236472A4 SYSTEM FOR CONFINING AND COOLING MELT FROM THE CORE OF A WATER COOLED-WATER MODIFIED REACTOR 有权
公开(公告)号：EP3236472A4
公开(公告)日：2018-06-27
申请号：EP15870434
申请日：2015-11-16
申请人： JOINT STOCK COMPANY ATOMENERGOPROEKT
发明人： NEDOREZOV ANDREY BORISOVICH , SIDOROV ALEKSANDR STALEVICH
IPC分类号： G21C9/016 , G21C13/10 , G21C15/18
CPC分类号： G21C9/016 , G21C13/10 , G21C15/18 , G21Y2002/10 , Y02E30/40
摘要： The invention relates to nuclear power industry, namely to systems providing safety of nuclear power plants (NPP), and can be used during severe accidents leading to 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 internal and external metal layers with an intermediate layer in the form of a non-metal filler located in between. Bearing ribs are installed between the internal and external layers at an azimuth pitch (S pitch ) that meets the following criterion: d ext /15

5. 发明公开

EP2431976A4 MELT-COOLING PROMOTING APPARATUS, AND REACTOR CONTAINER 审中-公开
标题翻译：熔体冷却设备的支持与核集装箱
公开(公告)号：EP2431976A4
公开(公告)日：2015-02-18
申请号：EP09844649
申请日：2009-07-24
申请人： MITSUBISHI HEAVY IND LTD
发明人： GODA HIROSHI , YAMAGISHI MAKOTO , SUZUTA TADAHIKO , KONDO YOSHIYUKI
IPC分类号： G21C9/016 , G21C15/12 , G21C15/18
CPC分类号： G21C9/016 , G21C15/12 , G21C15/18 , Y02E30/32

6. 发明公开

EP2602793A3 Nuclear reactor containment vessel and water leak detection floor 有权
标题翻译：核反应堆的安全容器和水检漏地板
公开(公告)号：EP2602793A3
公开(公告)日：2013-08-28
申请号：EP13001159.6
申请日：2008-12-11
申请人： Kabushiki Kaisha Toshiba
发明人： Aoki, Kazuyoshi , Kurita, Tomohisa , Tobimatsu, Toshimi , Kubo, Shinji , Tahara, Mika , Hamazaki, Ryoichi , Akinaga, Makoto
IPC分类号： G21C9/016 , G21C17/00 , G21C17/04
CPC分类号： G21C9/016 , G21C17/002 , G21C17/04 , Y02E30/40
摘要： If a molten core holding apparatus (core catcher) is disposed below a reactor pressure vessel in a reactor containment vessel, water leak cannot be detected at a pedestal floor. Thus the reactor containment vessel has to be separately equipped with a mechanism for detecting the water leak. A water leak detection floor (11) transversally suspended by a pedestal side wall (22) is installed between a reactor pressure vessel (1) and a molten core holding apparatus (10). If a water leak occurs at the reactor pressure vessel (1), the water leak detection floor receives and detects the leak water. In a core meltdown accident, corium melts and penetrates the water leak detection floor and deposits on the molten core holding apparatus.

7. 发明公开

EP2562764A1 APPARATUS FOR HOLDING MOLTEN CORE MATERIAL 审中-公开
标题翻译： VORRICHTUNG ZUR AUFBEWAHRUNG EINES GESCHMOLZENEM KERNMATERIALS
公开(公告)号：EP2562764A1
公开(公告)日：2013-02-27
申请号：EP11762161.5
申请日：2011-03-14
申请人： Kabushiki Kaisha Toshiba
发明人： WADA, Kunihiko , KUNO, Fumiyo , ISHIWATA, Yutaka , KAMEDA, Tsuneji , HAMAZAKI, Ryoichi , KATAGIRI, Noriyuki
IPC分类号： G21C9/016
CPC分类号： G21C9/016 , Y02E30/40
摘要： There is provided a molten corium holding device which can hold a molten corium for a predetermined period even when the molten corium is exposed to heat or undergoes any chemical reaction and which is applicable to practical use. The molten corium holding device which is to be arranged below a reactor pressure vessel. There is provided a molten corium holding device provided below a nuclear reactor pressure vessel, wherein the holding device is configured to include, on a base material in contact with a cooling medium, a multilayer stack structure composed of a first heat-resistant layer, a second heat-resistant layer formed on the first heat-resistant layer and low in heat conductivity than the first heat-resistant layer, and a corrosion-resistant impact-absorbing layer formed on the second heat-resistant layer.
摘要翻译：提供了一种熔融的蕊保持装置，即使当熔融的金属暴露于热或经历任何化学反应并且可适用于实际应用时，其可以将熔融的金属保持一段预定的时间。待置于反应堆压力容器下方的熔融ium保持装置。提供了一种设置在核反应堆压力容器下方的熔融ium保持装置，其中保持装置构造成在与冷却介质接触的基材上包括由第一耐热层，形成在第一耐热层上的第二耐热层和比第一耐热层低的导热性，以及形成在第二耐热层上的耐腐蚀冲击吸收层。

8. 发明公开

EP2541557A1 MOLTEN MATERIAL COOLING STRUCTURE, REACTOR CONTAINMENT VESSEL PROVIDED WITH COOLING STRUCTURE, AND NUCLEAR POWER PLANT PROVIDED WITH CONTAINMENT VESSEL 审中-公开
标题翻译：结构用于冷却熔融材料，反应堆安全壳与冷却结构，核电厂与安全壳
公开(公告)号：EP2541557A1
公开(公告)日：2013-01-02
申请号：EP10846571.7
申请日：2010-08-24
申请人： Mitsubishi Heavy Industries, Ltd.
发明人： KONDO, Yoshiyuki , SUZUTA, Tadahiko , YAMAGISHI, Makoto , GODA, Hiroshi , TANIMOTO, Koichi
IPC分类号： G21C9/016
CPC分类号： G21C9/016 , Y02E30/40
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 (62) that captures the corium that has flowed out from a reactor (12) and a plurality of pipe portions (63) that are provided in a coolant storing portion (56) and into which the corium flows via the capture portion (62) are provided.
摘要翻译：一个目的是提供一种真皮冷却结构也被能够积聚真皮和碎屑thathave的从反应器中的小分割部和充分地冷却高温真皮和碎屑，设有相同的一核反应堆储存容器流出，并具有相同的核电厂。（62）做了一个捕获部分捕获真皮并已经从一个反应器（12）和管部的多个（63）流出被设置在冷却剂存储部分（56）并与成真皮经由捕获部分流动（62）被提供。

9. 发明公开

EP2538415A2 Nuclear power plant 审中-公开
标题翻译： Kernkraftwerk
公开(公告)号：EP2538415A2
公开(公告)日：2012-12-26
申请号：EP12004005.0
申请日：2012-05-23
申请人： Kabushiki Kaisha Toshiba
发明人： Kurita, Tomohisa , Tahara, Mika , Komuro, Mitsuo , Tobimatsu, Toshimi , Suzuki, Ryo , Hamazaki, Ryoichi , Katagiri, Noriyuki , Tanabe, Masashi
IPC分类号： G21C9/016 , G21C11/08 , G21C15/18
CPC分类号： G21C9/016 , G21C11/08 , G21C13/02 , G21C15/18 , Y02E30/40
摘要： An embodiment of a nuclear power plant has: a reactor vessel (11) containing a core (10); a reactor containment vessel (12) containing the reactor vessel (12); and a radiation heat reflecting member (30) disposed at a portion below the reactor vessel (11) inside the reactor containment vessel (12). The radiation heat reflecting member (30) may block radiation heat, which is emitted toward a side wall surface (23) of the reactor containment vessel (12) from the core (31) that has been put in a molten state by an accident and flowed downward from the reactor vessel (11) to be accumulated at a lower portion (19) of the reactor containment vessel (12). The radiation heat reflecting member (47) may block radiation heat, which is emitted toward a supporting structure (42) supporting devices (44) disposed inside the reactor containment vessel (12).
摘要翻译：核电站的一个实施例具有：包含芯（10）的反应堆容器（11）; 容纳所述反应器容器（12）的反应堆容纳容器（12）; 以及设置在反应堆容器（12）内的反应器容器（11）下方的部分的辐射热反射构件（30）。辐射热反射构件（30）可以阻挡从反应堆容纳容器（12）的侧壁表面（23）发射的辐射热量从事先被置于熔融状态的芯体（31）和从反应堆容器（11）向下流动以积聚在反应堆容纳容器（12）的下部（19）处。辐射热反射构件（47）可以阻挡朝着设置在反应堆容纳容器（12）内部的支撑装置（44）的支撑结构（42）发射的辐射热。

10. 发明公开

EP2489043A1 ASSEMBLAGE DE COMBUSTIBLE NUCLEAIRE ET REACTEUR NUCLEAIRE COMPORTANT DE TELS ASSEMBLAGES 审中-公开
标题翻译： KERNBRENNSTABBÜNDELUND MIT DERARTIGENKERNBRENNSTABBÜNDELNBESTÜCKTER核反应堆
公开(公告)号：EP2489043A1
公开(公告)日：2012-08-22
申请号：EP10765631.6
申请日：2010-10-14
申请人： Commissariat à l'Énergie Atomique et aux Énergies Alternatives
发明人： JEANNE, Thierry
IPC分类号： G21C3/322 , G21C3/324 , G21C9/016 , G21C15/18
CPC分类号： G21C3/322 , G21C3/324 , G21C9/016 , G21C15/18 , Y02E30/38
摘要： The invention relates to a nuclear fuel assembly comprising: a housing (2) defining an inner space divided into a central portion (10), referred to as a fissile area, in which a bundle of nuclear fuel pins (11) is arranged, an upper portion (14), and a lower portion (12); a lower end comprising a coolant supply inlet; an upper end comprising a coolant discharge outlet; the pins of the bundle of pins comprising an upper plenum and/or lower plenum; means (18) for placing the lower portion (12) of the inner space of the housing in communication with the area (20) surrounding the assembly, referred to as the interconnecting area through the wall of the housing (2), said means being sealed below a given pressure threshold in the inner portion; and upper neutron protection means (22.1) inside the housing.

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