公开(公告)号：US5629965A

公开(公告)日：1997-05-13

申请号：US647761

申请日：1996-05-15

申请人： Tomonori Soga ,  Kiyoshi Harada

发明人： Tomonori Soga ,  Kiyoshi Harada

IPC分类号： G21C7/10

CPC分类号： G21C7/10 ,  G21Y2002/104 ,  G21Y2002/206 ,  G21Y2004/30 ,  Y02E30/34 ,  Y02E30/39

摘要： A diving bell type control rod of sodium bond type. The control rod including a plurality of control elements each comprising a pellet chamber for packing B.sub.4 C pellets and disposed in a cladding tube, an intermediate plug disposed above the pellet chamber, an upper chamber formed above the intermediate plug, a vent tube allowing the pellet chamber to communicate with the upper chamber while penetrating through the intermediate plug, upper and lower vent holes formed in upper and lower two stages in the cladding tube at the upper chamber, a sodium inflow port opening to the upper surface of the intermediate plug, and a sodium introduction tube extending from the sodium inflow port to a position below the lower end surface of the intermediate plug while penetrating through the intermediate plug.

摘要翻译： 钠键式潜水钟型控制棒。 控制杆包括多个控制元件，每个控制元件包括用于包装B4C颗粒的颗粒室并且设置在包层管中，设置在颗粒室上方的中间塞，形成在中间塞的上方的上室，允许颗粒室 在穿过中间塞子的同时与上部腔室连通，在上部腔室的包层管的上下两级形成的上下通气孔，通向中间塞的上表面的钠流入口，以及 钠导入管从钠流入口延伸到中间塞的下端表面下方的位置，同时穿过中间塞。