专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明公开

EP0842517A1 FUEL ASSEMBLY FOR A BOILING WATER REACTOR 失效
标题翻译：燃烧组件用于沸腾水反应堆
公开(公告)号：EP0842517A1
公开(公告)日：1998-05-20
申请号：EP96923125.0
申请日：1996-06-04
申请人： ABB ATOM AB
发明人： NYLUND, Olov
IPC分类号： G21C3
CPC分类号： G21C3/17 , G21C3/322 , G21Y2002/201 , G21Y2002/207 , G21Y2002/303 , G21Y2004/30 , Y02E30/31 , Y02E30/38
摘要： A fuel assembly for a boiling water reactor where the fuel assembly during operation is arranged vertically in the core of the reactor. The fuel assembly comprises a plurality of vertical fuel rods (22) arranged in one or more fuel bundles, wherein at least the majority of the fuel rods comprise a stack of fuel pellets (7) surrounded by a cladding tube (8b) and a plenum tube (23) which is connected to the upper part of the cladding tube (8b), the plenum tube having a cross section area which is smaller than the cross section area of the cladding tube. Further, the fuel assembly comprises a bottom tie plate (15) which retains and supports the lower part of the fuel bundle, a number of spacers (13) which retain and position the fuel rods in spaced relationship and are arranged axially separated along the fuel rods, a top spacer (21) which retains and supports the upper part of the fuel bundle and is arranged above and at a distance from the stacks of fuel pellets, and a fuel channel (2) which surrounds the fuel bundle or the fuel bundles.
摘要翻译：一种用于沸水反应堆的燃料组件，其中运行期间的燃料组件垂直布置在反应堆的堆芯中。该燃料组件包括布置在一个或多个燃料棒中的多个竖直燃料棒（22），其中至少大部分燃料棒包括由包壳管（8b）和增压室（8b）围绕的燃料芯块堆（7）与包壳管（8b）的上部连接的管（23），该充气管的横截面积小于包壳管的横截面积。此外，燃料组件包括保持和支撑燃料棒下部的底部连接板（15），多个间隔件（13），这些间隔件以间隔开的关系保持和定位燃料棒并沿燃料轴向分开布置杆，保持并支撑燃料棒的上部的顶部间隔件（21），其设置在燃料芯块堆的上方并且与燃料芯块堆相距一定距离;以及燃料通道（2），其围绕燃料棒束或燃料棒束。

62. 发明公开

EP0832487A1 FUEL ASSEMBLY FOR A BOILING WATER REACTOR 失效
标题翻译：燃烧组件用于沸腾水反应堆
公开(公告)号：EP0832487A1
公开(公告)日：1998-04-01
申请号：EP96918962.0
申请日：1996-06-07
申请人： ABB ATOM AB
发明人： GRÖNLUND, Magnus
IPC分类号： G21C3
CPC分类号： G21C3/334 , G21Y2002/40 , G21Y2004/301 , Y02E30/40
摘要： The present invention relates to a fuel assembly (1) in or for a boiling water reactor, said fuel assembly comprising a plurality of vertical fuel rods (3, 3a, 3b) extending between a top and a bottom tie plate (5b, 5d, 5h, 6) and surrounded by a sleeve-formed casing (2) where the fuel rods are positioned with the aid of a plurality of axially separated spacers. The invention is characterized in that only one fuel rod (3b) is arranged detachable in the top tie plate (5b, 5d, 5h) and in the bottom tie plate (6) and in that at least one of the other fuel rods (3a) is fixed to the bottom tie plate (6) and adapted to extend above the top tie plate (5b, 5d, 5h) to obtain a tensile-force-transmitting connection with the bottom tie plate (6).
摘要翻译：本发明涉及用于沸水反应堆的燃料组件（1），所述燃料组件包括在顶部和底部系板（5b，5d，5d）之间延伸的多个垂直燃料棒（3,3a，3b） 5h，6），并由套筒形壳体（2）包围，其中燃料棒借助多个轴向分开的间隔件定位。本发明的特征在于，只有一个燃料棒（3b）可拆卸地设置在顶部连接板（5b，5d，5h）中和底部连接板（6）中，并且至少一个其他燃料棒（3a ）固定到底部连接板（6）并适于在顶部连接板（5b，5d，5h）上方延伸以获得与底部连接板（6）的拉力传递连接。

63. 发明公开

EP0806778A1 Method and handling equipment for nuclear fuel handling 失效
标题翻译： Verfahren undFördereinrichtungzur Handhabung vonKernbrennstabbündeln
公开(公告)号：EP0806778A1
公开(公告)日：1997-11-12
申请号：EP97201247.0
申请日：1997-04-25
申请人： ABB ATOM AB
发明人： Bäversten, Bengt , Nyström, Karel-Erik , Rosengren, Anders , Suvanto, Antti
IPC分类号： G21C19/20
CPC分类号： G21C19/20 , G21Y2002/202 , G21Y2004/304 , G21Y2004/40 , G21Y2004/503
摘要： The present invention relates to a method and equipment (13) for lifting of fuel assemblies (4) and/or control rods out of/into a reactor vessel (1) in a shutdown nuclear reactor. The reactor vessel (1) comprises a reactor core (5) with a plurality of fuel assemblies (4) and control rods (11). The equipment (13) lifts one or more fuel assemblies (4) and/or control rods (11) out of the reactor core (5) and arranges them in a first cassette (14). The first cassette (14) is transported to a fuel pool (3) with a transport means (9) whereas a second cassette (14) is filled with fuel assemblies (4) and/or control rods (11) with the aid of the equipment (13).
摘要翻译：本发明涉及一种用于在关闭核反应堆中将燃料组件（4）和/或控制棒提升到反应器容器（1）中的方法和设备（13）。反应器容器（1）包括具有多个燃料组件（4）和控制杆（11）的反应堆堆芯（5）。设备（13）将一个或多个燃料组件（4）和/或控制杆（11）提升出反应堆堆芯（5），并将它们排列在第一盒（14）中。第一盒（14）通过传送装置（9）运输到燃料池（3），而第二盒（14）借助于燃料组件（4）和/或控制杆（11）填充设备（13）。

64. 发明公开

EP0806776A1 A method for fuel handling 失效
标题翻译：一种燃料处理方法
公开(公告)号：EP0806776A1
公开(公告)日：1997-11-12
申请号：EP97201278.5
申请日：1997-04-28
申请人： ABB ATOM AB
发明人： Bäversten, Bengt , Nyström, Karl-Erik , Rosengren, Anders , Suvanto, Antti
IPC分类号： G21C19/10
CPC分类号： G21C19/20 , G21Y2004/40
摘要： The present invention relates to a method for fuel handling comprising lifting of fuel assemblies (4) out of/into a nuclear reactor. The nuclear reactor comprises a reactor vessel (1) which in turn comprises a reactor core (5) with a plurality of fuel assemblies (4) and control rods (11) and a fuel pool (3) arranged adjacent the reactor vessel (1). According to one aspect of the invention, the whole of or parts of the reactor core (5) is or are simultaneously lifted out of and into the reactor vessel (1), respectively. The removed fuel assemblies (4) or the control rods (11) or the fuel assemblies (4) and the control rods (11) are arranged temporarily in the fuel pool (3).
摘要翻译：用于燃料处理的方法技术领域本发明涉及一种用于燃料处理的方法，其包括将燃料组件（4）从核反应堆中取出/引入。该核反应堆包括反应堆容器（1），该反应堆容器又包括具有多个燃料组件（4）和控制棒（11）以及邻近反应堆容器（1）布置的燃料池（3）的堆芯（5）。根据本发明的一个方面，反应堆芯（5）的全部或部分分别同时从反应堆容器（1）中提出或进入反应堆容器（1）。被去除的燃料组件（4）或控制杆（11）或燃料组件（4）和控制杆（11）被临时布置在燃料池（3）中。

65. 发明公开

EP0806775A1 Method and device for movement correction and positioning 失效
标题翻译： Verfahren und Vorrichtung zur Bewegungskorrektur und zum Positionieren
公开(公告)号：EP0806775A1
公开(公告)日：1997-11-12
申请号：EP97201246.2
申请日：1997-04-25
申请人： ABB ATOM AB
发明人： Bäversten, Bengt , Nyström, Karl-Erik , Rosengren, Anders , Suvanto, Antti
IPC分类号： G21C19/10 , B66C13/06
CPC分类号： G21C19/10 , B66C13/063 , B66C13/08 , G21Y2002/204 , G21Y2002/205 , G21Y2002/303 , G21Y2002/402 , G21Y2004/401 , G21Y2004/403 , G21Y2004/503
摘要： The present invention relates to a method and a device for correction of the movements of a suspension device (9a) and positioning thereof in a fluid. The suspension device (9a) is provided with a first and a second end, and the first end is suspended from a point (S). A correction device (13) is arranged at the second end of the suspension device (9a) and adapted to generate a force which provides an acceleration in the fluid such that the position of the second end of the suspension device (9a) is corrected.
摘要翻译：本发明涉及一种用于校正悬挂装置（9a）的运动并将其定位在流体中的方法和装置。悬挂装置（9a）设置有第一端和第二端，并且第一端从点（S）悬挂。校正装置（13）布置在悬挂装置（9a）的第二端处并且适于产生在流体中提供加速度的力，使得悬架装置（9a）的第二端的位置被校正。

66. 发明公开

EP0799483A1 FUEL ASSEMBLY WITH SHORT FUEL UNITS 失效
标题翻译：短燃油燃油棒束
公开(公告)号：EP0799483A1
公开(公告)日：1997-10-08
申请号：EP95941954.0
申请日：1995-12-08
申请人： ABB ATOM AB
发明人： NYLUND, Olov
IPC分类号： G21C3
CPC分类号： G21C3/326 , G21Y2002/201 , G21Y2002/304 , G21Y2004/30 , G21Y2004/60 , Y02E30/31 , Y02E30/38
摘要： A fuel assembly for a boiling water reactor comprising a plurality of fuel units (3), stacked on top of each other, each of which comprising a plurality of fuel rods (4) extending between a top tie plate (5) and a bottom tie plate (6), and means (12) for keeping the fuel elements together. The fuel elements are surrounded by a fuel channel (8) with a substantially square cross section.

67. 发明公开

EP0795177A1 CONTROL OF COOLANT FLOW IN A NUCLEAR REACTOR 失效
标题翻译：控制冷却液流量核反应堆
公开(公告)号：EP0795177A1
公开(公告)日：1997-09-17
申请号：EP95922821.0
申请日：1995-06-02
申请人： ABB ATOM AB
发明人： NYLUND, Olov
IPC分类号： G21C3
CPC分类号： G21C3/322 , G21C3/34 , G21Y2002/201 , G21Y2004/302 , Y02E30/31 , Y02E30/32 , Y02E30/38
摘要： A method and a device for guiding a coolant flow in a light-water nuclear reactor. The guiding of the coolant flow is performed within a mixing cross section which comprises four orthogonally arranged sub-regions (1, 1a, 1c), in their turn comprising whole or parts of fuel assemblies (1). In each sub-region (1, 1a, 1c) there is arranged at least one level which comprises spacers (7) which are provided with flow control members (12) adapted such that the coolant is guided from one sub-region (1, 1a, 1c) to an adjacent sub-region (1, 1a, 1c), thus equalizing the enthalpy of the coolant in the mixing cross section.

68. 发明公开

EP0776379A1 NUCLEAR FUEL ELEMENT FOR A PRESSURIZED-WATER REACTOR 失效
标题翻译：核燃料元件用于加压水反应堆
公开(公告)号：EP0776379A1
公开(公告)日：1997-06-04
申请号：EP95931494.0
申请日：1995-09-07
申请人： ABB ATOM AB
发明人： DAHLBÄCK, Mats , RUDLING, Peter
IPC分类号： C22C16 , G21C3
CPC分类号： C22C16/00 , G21C3/07 , G21Y2002/103 , G21Y2004/10 , Y02E30/40
摘要： The invention relates to a nuclear fuel element for pressurized-water reactors comprising a fuel cladding of a zirconium alloy composed of two parts. The inner part constitutes a supporting part of a conventional zirconium and the outer part a corrosion-resistant layer of zirconium with 0.65 - 0.95 % Sn and 0.4 - 0.5 % Fe. The difference in Sn content between the inner and outer parts must not exceed 0.7 %.

69. 发明公开

EP0745258A1 A NUCLEAR FUEL ELEMENT FOR A PRESSURIZED WATER REACTOR AND A METHOD FOR MANUFACTURING THE SAME 失效
标题翻译：核反应堆燃料棒包以压水堆及其制造方法
公开(公告)号：EP0745258A1
公开(公告)日：1996-12-04
申请号：EP94919956.0
申请日：1994-06-22
申请人： ABB ATOM AB
发明人： RUDLING, Peter
IPC分类号： C22F1 , G21C3
CPC分类号： G21C3/07 , C22F1/186 , G21Y2002/103 , G21Y2004/10 , G21Y2004/201 , Y02E30/40
摘要： The present invention relates to a nuclear fuel element for a pressurized-water reactor, PWR. The fuel element comprises cladding tubes or cladding tubes and guide tubes, whose composition and manufacture are so adapted that the cladding or the cladding and the guide tubes during reactor operation show a good resistance to general corrosion and a low hydrogen contents. This can be achieved by allowing the cladding or the cladding and the guide tubes, when being manufactured, to undergo heat treatments which are of such a nature that the cumulative annealing parameter ⊤A = ⊤ti exp (-Q/RTi) is at most 1.25 x 10-14, at Q/R = 31726 K.

70. 发明公开

EP0722610A1 REDUCTION OF THE NUMBER OF PCI PROTECTED FUEL RODS IN A REACTOR CORE 失效
标题翻译：预还原沉淀包覆相互作用PROTECTED燃料杆的数量在反应堆芯
公开(公告)号：EP0722610A1
公开(公告)日：1996-07-24
申请号：EP94926455.0
申请日：1994-09-08
申请人： ABB ATOM AB
发明人： NYLUND, Olov
IPC分类号： G21C3
CPC分类号： G21C3/328 , G21C3/20 , G21Y2002/101 , G21Y2002/102 , G21Y2002/103 , G21Y2002/303 , G21Y2004/30 , Y02E30/31 , Y02E30/32 , Y02E30/38
摘要： The invention relates to a fuel assembly for a boiling water reactor in which the number of fuel rod positions is greater than 80, and to a fuel assembly for a boiling water reactor in which the number of fuel rod positions is smaller than 65, and to a fuel assembly for a pressurized-water reactor. A fuel assembly comprises a plurality of fuel rods each of which comprises a nuclear fuel surrounded by a cladding tube. The fuel assembly is located adjacent to one or more control rod positions (10). To protect a fuel rod against PCI damage, the inside of the cladding tube is provided with a protective layer of metal. Only fuel rods (7a) in especially exposed positions near a control rod position are provided with cladding protection. The other fuel rods (7b) have no cladding protection. The invention also relates to a core for a boiling water reactor and a pressurized-water reactor in which all the fuel assemblies, which either contain or are arranged adjacent to a control rod which during normal operation at some time is inserted into the core, comprise fuel rods with said protective layer. The total number of fuel assemblies in the entire core with said protective layer is smaller than 1.2 x C x M, where C is the average number of operating cycles during which a fuel assembly is allowed to sit in the core, and M is the number of fuel assemblies which either contain or are arranged adjacent to a control rod which during normal operation at some time is inserted into the core.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式