Safety device for rods in reactors having spherical fuel elements

摘要

The inner tube (2) present in a rod (1) is also used as a catching device for a possibly broken off rod tip (15). In the event of breakage, a shoulder (4) of the inner tube (2) rests against an abutment (5) of the outer tube (7). The centre of gravity of the broken off tip (15) of the rod (1) is located in any case below the catching device, as clearly represented in Figure 1. <IMAGE>