专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

GB912659A Improvements in or relating to nuclear reactor fuel element charging and dischargingarrangements 未知
公开(公告)号：GB912659A
公开(公告)日：1962-12-12
申请号：GB1227758
申请日：1958-04-17
申请人： ATOMIC POWER CONSTR LTD , JAMES WILFRED ASHLEY , PETER DEAN HODSON , FREDERICK JOHN ROGERS , MAURICE WILLIAM NICHOLS
IPC分类号： G21C19/02 , G21C19/20
摘要： 912,659. Servicing reactors. ATOMIC POWER CONSTRUCTIONS Ltd., ASHLEY, J. W., HODSON, P. D., ROGERS, F. J., and NICHOLS, M. W. April 17, 1959 [April 17, 1958], No. 12277/58. Class 39 (4). The lower ends of fuel element channels 5 (only one shown) in the reactor core 4 have extensions 17 leading to one of a number of selectors 16, each selector serving a group of channels, e.g. 315 channels, the lower ends 19 of the extensions 17 of a group being arranged on nine concentric circles each circle having thirty-five ends 19. A rotatable plug 20 in the selector has nine passages 21, the passage entries 22 lying on a common radius but the passage ends 23 each lying on a different radius corresponding to the radii of the circles on which the ends 19 are located. A lower rotatable plug 24 has a single passage 25 having a central entry 26 and an exit 27 lying on a circle having the same radius as that of the entries 22. The channel 5 to be loaded or unloaded is selected by rotation of the plugs 20, 24 and a flexible probe 14 is brought out from a dispenser 15 to support the lower end of the fuel elements 28. A charge machine 9 movable over the shield 3 is aligned with a selected hole 8 and standpipe 10 (only one hole and one standpipe being shown) and a pantograph 13 is lowered from the machine and extended to be in alignment with the channel 5 from which the fuel elements are to be discharged. The probe 14 then lifts the fuel elements 28 in the selected channel so that the upper fuel element is received in the pantograph 13, the latter being retracted so that the element may be lifted by a hoist into the machine 9. In a charging operation the process is reversed, the fuel elements being lowered singly into the pantograph which is then extended and the fuel element lowered into the channel by withdrawing the probe 14.

IPRDB

热门服务

关于我们

友情链接

联系方式