会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明申请
    • Heat treatment method and device for piping
    • 管道热处理方法及装置
    • US20060113010A1
    • 2006-06-01
    • US11290468
    • 2005-12-01
    • Noboru SaitouNobuyoshi YanagidaShoji HayashiSatoshi KannoKunio Enomoto
    • Noboru SaitouNobuyoshi YanagidaShoji HayashiSatoshi KannoKunio Enomoto
    • C21D9/08
    • C21D9/50C21D1/42C21D9/08Y02P10/253
    • In a method for heat treatment of an existing pipe constituting a piping system, for converting the residual stress at a welded metallic portion and a welding heat influenced portion of the inside surface of the pipe, into a compressive stress and thereby generate the compressive stress in the inside surface of the existing pipe, a coolant is retained in the pipe; an arbitrary portion of the outside surface of the pipe is heated; thereby a temperature distribution little in temperature difference is produced in the wall surface of the pipe at the heated portion; and then the coolant is allowed to flow. By converting the residual stress at the welded metallic portion and the welding heat influenced portion of the inside surface of the pipe, into the compressive stress, stress corrosion cracking generated from the welded metallic portion and the welding heat influenced portion can be suppressed.
    • 在构成管道系统的现有管道的热处理方法中,用于将焊接金属部分的残余应力和管内表面的焊接热影响部分变形为压缩应力,从而产生压缩应力 现有管道的内表面,冷却剂被保留在管道中; 管道的外表面的任意部分被加热; 从而在加热部分的管的壁表面产生温差很小的温差; 然后允许冷却剂流动。 通过将焊接金属部分的残余应力和管内表面的焊接热影响部分转化为压缩应力,可以抑制从焊接金属部分和焊接热影响部分产生的应力腐蚀裂纹。
    • 9. 发明授权
    • Fuel assembly and nuclear reactor
    • 燃料装配和核反应堆
    • US5617456A
    • 1997-04-01
    • US463828
    • 1995-06-05
    • Hideki KurosakiJunjiro NakajimaHajime UmeharaShozo NakamuraSatoshi KannoKoji NishidaYasunori BesshoMasahisa InagakiOsamu YokomizoYuichiro Yoshimoto
    • Hideki KurosakiJunjiro NakajimaHajime UmeharaShozo NakamuraSatoshi KannoKoji NishidaYasunori BesshoMasahisa InagakiOsamu YokomizoYuichiro Yoshimoto
    • G21C3/328G21C21/00
    • G21C3/328Y02E30/38
    • The lower end of each of a plurality of fuel rods is supported by a fuel supporting portion of a lower tie plate. The fuel supporting portion includes a plurality of second coolant paths for supplying a coolant from below the fuel supporting portion to a first coolant path defined above the fuel supporting portion and between the fuel rods. The total cross-sectional area of all the second coolant paths is smaller than the cross-sectional area of the first coolant path. A water rod disposed between the fuel rods each includes an ascending tube path having therein a coolant ascending path having a coolant inlet port opening to a region below the fuel supporting portion, for guiding upward the coolant supplied through the coolant inlet port, and a descending tube having therein a coolant descending path having a coolant delivery port opening to said first coolant path, for guiding downward the coolant guided by said coolant ascending path and discharging the coolant through the coolant delivery port to the first coolant path. The descending tube path is so disposed outside the ascending tube path as to define a gap, through which the coolant inside the first coolant path flows, between it and the ascending tube path.
    • 多个燃料棒的每一个的下端由下连接板的燃料支撑部支撑。 燃料支撑部分包括多个第二冷却剂路径,用于将冷却剂从燃料支撑部分下方供应到限定在燃料支撑部分上方和燃料棒之间的第一冷却剂路径。 所有第二冷却剂通道的总截面积小于第一冷却剂通道的横截面面积。 设置在燃料棒之间的水杆各自包括上升管路,其中具有冷却剂上升路径,其具有通向燃料支撑部分下方的区域的冷却剂入口,用于向上引导通过冷却剂入口提供的冷却剂, 其中具有冷却剂下降路径,其具有通向所述第一冷却剂路径的冷却剂输送口,用于向下引导由所述冷却剂上升路径引导的冷却剂并将冷却剂通过冷却剂输送端口排出到第一冷却剂路径。 下降的管道设置在上升管道的外侧,以便限定第一冷却剂路径内的冷却剂在其与上升的管道之间流动的间隙。