| 摘要 |
1. Assembly of means comprising a structure (36) divided in housings (35) separated by walls (41) for storing nuclear combustible elements (1), consituted by a bundle of combustible sticks (6) and guiding tubes (2) in which are introduced bars (11) of neutron poison forming a cluster (10) and monitoring the criticality in the structure, and a specific handling member (18) of elements (11), characterized in that blocking means (37, 371 , 372 , 48) are associated with each of said housings (35), in that said specific handling member (18) slides in a bell (38a) which can contain the combustible element (1), in that the lower edge of said bell (38a) comprises means capable of cooperating with said blocking means of the housings (35) in order to withdraw them when such an element is introduced, and in that the specific handling member (18) of said combustible elements (1) can seize them only if they are provided with bars (11) of neutron poison. |
