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    • 9. 发明专利
    • Nuclear fuel storage rack and nuclear fuel storage rack group
    • 核燃料储存架和核燃料储存架组
    • JP2014145787A
    • 2014-08-14
    • JP2014096399
    • 2014-05-07
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • IWASAKI AKIHISAMORITA HIDEYUKINAKAMURA MASAAKIOKUNO DAISAKUNEKOMOTO YOSHITSUGUHIROTA KAZUOYOSHIOKA MASAHIRO
    • G21C19/07
    • PROBLEM TO BE SOLVED: To provide a nuclear fuel storage rack capable of preventing the rack body of a nuclear fuel storage rack from colliding against a side wall of other nuclear fuel storage rack or a storage pit adjacent to the nuclear fuel storage rack, even if it is to be slidable on the bottom surface of the storage pit, and a nuclear fuel storage rack group.SOLUTION: A nuclear fuel storage rack I that is aligned and stored in a storage pit while housing nuclear fuel assemblies comprises: rectangular parallelepiped rack bodies 6 for housing the nuclear fuel assemblies; support leg parts for supporting the rack bodies 6 so that they are slidable on the bottom surface of the storage pit; and colliding members 11, 12 disposed on both ends of sides 7 of the rack bodies 6 and protruding from the sides 7. A pair of the colliding members 11, 12 disposed on both the ends of the sides 7 is set so that they have different rigidities.
    • 要解决的问题:为了提供能够防止核燃料存储架的机架体与其他核燃料存储架的侧壁或与核燃料存储架相邻的存储坑相撞的核燃料存储架,即使 它可以在储存坑的底面和一个核燃料储存架组上滑动。解决方案:在容纳核燃料组件的同时对准并存放在存储坑中的核燃料储存架I包括:长方体的支架体 6住房核燃料组件; 支撑用于支撑齿条体6的腿部部件,使得它们能够在存储坑的底面上滑动; 以及设置在齿条体6的侧面7的两端并从侧面7突出的碰撞构件11,12。设置在侧面7的两端的一对碰撞构件11,12被设定为使得它们具有不同的 僵化。
    • 10. 发明专利
    • Pipe expansion jig, pipe expansion method of heat transfer pipe, repairing method and blocking method
    • 管道膨胀机,热交换器管道膨胀方法,修理方法和阻塞方法
    • JP2014042920A
    • 2014-03-13
    • JP2012185659
    • 2012-08-24
    • Mitsubishi Heavy Ind Ltd三菱重工業株式会社
    • NISHIDA SHINGOMORITA HIDEYUKIHIROTA KAZUOSHIMAMURA KENGOKAWAKAMI RYOICHIKUSAKABE TAKANARI
    • B21D39/08B21D39/04B21D53/08F28F9/16
    • B21D26/14B21D39/04B21D39/08B21D53/06
    • PROBLEM TO BE SOLVED: To provide a pipe expansion jig that facilitates pipe expansion work and can properly expand a pipe such as a heat transfer pipe of a steam generator, and to provide a pipe expansion method of the heat transfer pipe, a repairing method of the heat transfer pipe and a blocking method of the heat transfer pipe.SOLUTION: A pipe expansion method of a heat transfer pipe 5 is provided for expanding a heat transfer pipe 5 arranged in a steam generator 1 using a pipe expansion jig 80. The heat transfer pipe 5 is provided with a pair of vibration suppression members 14 for suppressing vibration of the heat transfer pipe 5 on both sides in the radial direction. The pipe expansion jig 80 includes a probe 81 inserted in the inside of the heat transfer pipe 5, and an electromagnetic coil 82 arranged in the probe 81 and expanding the heat transfer pipe 5 by electromagnetic force generated by a pulse current supplied thereto. The pipe expansion method includes: an insertion step S11 of inserting the pipe expansion jig 80 in the inside of the heat transfer pipe 5; and a pipe expansion step S12 of expanding the heat transfer pipe 5 until coming into abutment with a pair of vibration suppression members 14, respectively, by supplying the pulse current to the electromagnet coil 82 several times so that a current value of the pulse current is increased gradually.
    • 要解决的问题:提供一种管道膨胀夹具,其能够进行管道膨胀加工,并且可以适当地扩大蒸汽发生器的传热管等管道,并且提供传热管道的管道膨胀方法, 传热管和传热管的阻塞方法。传热管5的管道膨胀方法设置用于使用管道膨胀夹具80来扩展布置在蒸汽发生器1中的传热管5.热量 输送管5设置有一对抑制传热管5在径向两侧的振动的振动抑制部件14。 管膨胀夹具80包括插入传热管5内部的探针81和布置在探针81中的电磁线圈82,并且通过由其供应的脉冲电流产生的电磁力使传热管5膨胀。 管膨胀方法包括:插管步骤S11,将管膨胀夹具80插入传热管5的内部; 以及通过将传递管5分别与电磁线圈82供给脉冲电流数次使膨胀传热管5直到与一对振动抑制部件14抵接的扩管步骤S12,使得脉冲电流的电流值为 逐渐增加。