专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

91. 发明专利

JP2006258691A Temporary end plug 审中-公开
标题翻译：临时终端插件
公开(公告)号：JP2006258691A
公开(公告)日：2006-09-28
申请号：JP2005078812
申请日：2005-03-18
申请人： Nuclear Fuel Ind Ltd , 原子燃料工業株式会社
发明人： IKEDA HIROYUKI , NOHARA TATSURO
IPC分类号： G21C3/10
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a temporary end plug having a simple structure and seal function for clad stored until uranium pellets are charge inside.
SOLUTION: The temporary end plug has a shell part fitted and inserted in a clad of a fuel rod and a chin of which the clad side contacts its open end surface and the opposite of the clad side forms a shape hardly grasped, and is detached from the clad with a special key. In the middle of the opposite of the clad side of the chin, a key hole with a rectangular cross section exists, and for engaging the tip end of a key fitted with the shape of the key hole cross section and inserted to the depth of the key hole, a deep room for turning the tip end of the key around an axis in the key hole is formed in the temporary end plug.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：要解决的问题：提供一种具有简单的结构和密封功能的临时端塞，用于包层储存，直到铀颗粒被充入内部。解决方案：临时端塞具有安装并插入燃料棒的包层中的外壳部分，并且其包层侧接触其开口端表面并且与包层侧相对的下巴形成几乎不被抓握的形状，用专用钥匙脱离包层。在下颚的覆盖侧的相反侧的中间，存在具有矩形横截面的键孔，并且用于接合装配有键孔横截面形状的键的末端，并插入到钥匙孔，在临时端塞中形成有用于使键的尖端围绕键孔的轴线转动的深空间。版权所有（C）2006，JPO＆NCIPI

92. 发明专利

JP2004226401A End plug, nuclear fuel rod, and assembly of nuclear fuel rod 有权
公开(公告)号：JP2004226401A
公开(公告)日：2004-08-12
申请号：JP2004007124
申请日：2004-01-14
申请人： Westinghouse Electric Co Llc , ウエスチングハウス・エレクトリック・カンパニー・エルエルシー
发明人： BOATWRIGHT ANTHONY D
IPC分类号： G21C3/10 , G21C3/00 , G21C21/02
CPC分类号： G21C3/105 , G21Y2002/302 , G21Y2002/304 , G21Y2004/30 , Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide an end plug for welded disposition within an end of a nuclear fuel rod cladding tube.
SOLUTION: The end plug 1 has an outer part 5 with a tube-engaging face 9 and a non-engaging face 11, and an insertion part 7. An axial surface 13 extends between the tube-engaging face 9 and the non-engaging face 11. The insertion part 7 is integral with the outer part 5 and adapted for insertion into the cladding tube 100. The outer part 5 and the insertion part 7 have a predetermined cross-sectional dimension, with the cross-sectional dimension 17 of the outer part being greater than the cross-sectional dimension 19 of the insertion part. The tube-engaging face 9 is defined in the outer part 5 and the insertion part 7. A circumferential groove 21 in the axially oriented surface 13 in proximity to the tube-engaging face 9 makes a relatively flat weld part 300 possible by recovering a weld puddle 400.
COPYRIGHT: (C)2004,JPO&NCIPI

93. 发明专利

JP3544767B2 Fuel rod 失效
公开(公告)号：JP3544767B2
公开(公告)日：2004-07-21
申请号：JP31769995
申请日：1995-12-06
申请人：株式会社東芝
发明人：英俊秋山
IPC分类号： G21C3/10 , B23K9/00 , B23K33/00 , G21C17/06 , G21C21/02
CPC分类号： Y02E30/40

94. 发明专利

JP3527493B2 Fuel assembly 有权
公开(公告)号：JP3527493B2
公开(公告)日：2004-05-17
申请号：JP2001374252
申请日：2001-12-07
申请人：株式会社グローバル・ニュークリア・フュエル・ジャパン
发明人：康博増原 , 優二岩本 , 隆夫影山 , 朗本谷 , 貴憲深堀 , 朗田辺 , 徹金沢
IPC分类号： G21C3/10 , G21C3/30 , G21C3/33
CPC分类号： Y02E30/40

95. 发明专利

JP2004069366A Fuel rod 审中-公开
公开(公告)号：JP2004069366A
公开(公告)日：2004-03-04
申请号：JP2002226155
申请日：2002-08-02
申请人： Global Nuclear Fuel-Japan Co Ltd , 株式会社グローバル・ニュークリア・フュエル・ジャパン
发明人： TSUTSUMI NOBURO , AIZAWA YASUHIRO , TSUBOI HAJIME , ISODA SHINICHI
IPC分类号： G21C3/10
CPC分类号： Y02E30/40
摘要： PROBLEM TO BE SOLVED: To provide a safely used and highly reliable fuel rod capable of improving yields at welding without heightening the costs of the manufacture of members on an improvement in the fuel rod for a nuclear reactor.
SOLUTION: A plurality of fuel pellets are filled in a cladding tube 2, and a coil spring 5 is filled in a plenum part at an upper part of the fuel pellets. The upper end of the cladding tube 2 is sealed by an upper end plug, and its lower end is sealed by a lower end plug in the fuel rod. A cylindrical protrusion part 1h is provided for the center of the bottom surface of the upper end plug 1 on the side of the fuel pellets. The diameter of the base bottom of the protrusion part 1h is provided with the same size or a smaller size than that of the inner diameter of the tip of the coil spring 5 to be filled between the upper end plug and the fuel pellets. The protrusion part 1h is inserted inside the upper end of the coil spring 5. This process makes it possible to prevent the coil spring 5 from being caught between the cladding tube 2 and the upper end plug 1 when the upper end plug 1 is inserted in the cladding tube 2.
COPYRIGHT: (C)2004,JPO

96. 发明专利

JP3226635B2 失效
公开(公告)号：JP3226635B2
公开(公告)日：2001-11-05
申请号：JP31246892
申请日：1992-11-20
IPC分类号： B23K11/02 , B23K11/093 , G21C3/10 , G21C21/00

97. 发明专利

JP2000193771A NUCLEAR FUEL ROD 失效
公开(公告)号：JP2000193771A
公开(公告)日：2000-07-14
申请号：JP37691298
申请日：1998-12-24
申请人： NUCLEAR FUEL IND LTD
发明人： UEHARA SATOSHI
IPC分类号： G21C3/10 , G21C3/18
摘要： PROBLEM TO BE SOLVED: To raise integrity of fuel rods by easily getting always constant spring pushing force and avoiding the use of controlling pellet regardless of plenum length for the use of spring with any spring constant. SOLUTION: In a nuclear fuel rod consisting by inserting a multitude of fuel pellets 2 and a plenum coil spring 3 pushing the end of a pellet in a fuel rod cladding tube 1 and attaching an upper end plug 4 and a lower end plug at the upper and the lower ends, respectively, a thread groove 6 are made on the axis part 4a of the upper end plug 4 with the same pitch as that of the plenum coil spring 3. The upper end of the plenum coil spring 3 is coupled with the thread groove 6 of end plug and the shrink length of the spring is made controllable according to the plenum length.

98. 发明专利

JP2000187091A FUEL ASSEMBLY 失效
公开(公告)号：JP2000187091A
公开(公告)日：2000-07-04
申请号：JP36565198
申请日：1998-12-22
申请人： TOSHIBA CORP
发明人： ITO KO , MORI TAKEMI , TAKAHASHI MASATO
IPC分类号： G21C3/10 , G21C3/326 , G21C3/33 , G21C3/344
摘要： PROBLEM TO BE SOLVED: To prevent a partially long fuel rod from being pulled out by a method wherein a coupling fuel rod comprising a seal is fixed to an upper-part tie plate and a lower-part tie plate and a pullout preventive member is installed in a space on the extension of the partially long fuel rod at the upper-part tie plate. SOLUTION: Standard fuel rods and partially long fuel rods in nine rows and nine columns are square-arranged inside a square tubular channel box 1. Upper ends and lower ends of the fuel rods are fixed respectively by an upper-part tie plate 3 and a lower-part tie plate, and their intermediate parts are supported by a plurality of spacers. A seal is put on the upper end of a coupling fuel rod. Pullout preventive plates 10 which are made of stainless steel are installed at parts excluding respective bosses 16 on extensions of the partially long fuel rods. When the plates are installed, a jig or the like for fuel-rod pullout prevention cannot be put on the basis of information on a fuel assembly, and the partially long fuel rods cannot be passed because they are blocked by the pullout preventive plates 10. Consequently, as long as the fuel assembly is not disassembled by destroying the seal, the partially long fuel rods cannot be pulled out.

99. 发明专利

JP2994296B2 失效
公开(公告)号：JP2994296B2
公开(公告)日：1999-12-27
申请号：JP3210497
申请日：1997-02-17
IPC分类号： G21C3/10 , G21C21/02

100. 发明专利

JPH11344592A RUBBER PLUG ATTACHED DATA READER 失效
公开(公告)号：JPH11344592A
公开(公告)日：1999-12-14
申请号：JP15434698
申请日：1998-06-03
申请人： NIPPON NUCLEAR FUELS
发明人： KAMATA NORIMASA
IPC分类号： G21C21/02 , G21C3/02 , G21C3/10 , G21C17/06
摘要： PROBLEM TO BE SOLVED: To reduce the labor of a worker by automating the reading work of the data attached to a rubber plug. SOLUTION: A large number of rubber plugs are stored in a rubber plug storage container 1. A Z-axis arm 6 to a tip part of which a rubber plug holding part 7 is fitted is moved to an upper position of the rubber plug to be taken out by the movement of an X-axis bar 4 and a Y-axis bar 5. The Z-axis arm 6 lowers the rubber plug holding part 7 toward the rubber plug. When the rubber plug holding part 7 holds the rubber plug, the rubber plug holding part 7 is elevated, and moved to a data reading machine 2. The data attached to the rubber plug is read by the data reading machine 2.

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