| 摘要 |
881,840. Nuclear reactors. HUET, A. March 24, 1958 [April 5, 1957], No. 9420/58. Class 39(4) Fuel rods in a reactor are movable relative to one another and are enclosed by panels which are also movable to accommodate variations in the position of the fuel rods. The panels q may be of graphite or concrete or form tanks of heavy water or other suitable material for reflecting or absorbing neutrons. The fuel rods a form a lattice which may be expanded by means of articulated links connecting the rods in rows both horizontal and vertical as shown in the Fig. 1, the link mechanism being as described in Specification 857,675. As the rods are moved by this link system the panels q are moved to maintain the spacing between them and the end rows of rods. The whole assembly is immersed in a tank of heat exchange fluid so that whatever the volume of the space enclosed by the panels this fluid always fills it. |
