| 摘要 |
The utility model relates to nuclear engineering and can be used in bodies for control of nuclear reactors main part of which are absorption elements (pel) of control and protection system. Absorption element of nuclear reactor has shell consisting of two sections to one of which lower end part is hermetically connected, and to the other one – upper end part, and placed in shell neutron absorber arranged in length of two parts one of which at side of the lower end part is Arranged as rod made of material that has n, γ-reaction with neutrons, and installed with gap with respect to shell in bushing that is connected to the shell in fixed way, and the other is made of material that has n, α-reaction with neutrons. Absorption element has as well gas collector between the upper end part and ,material that has n, α-reaction with neutrons and is separated from it with gas-permeable insert. Sections of the shell are connected to each other through bushing and the rod with the upper part is rigidly connected to the bushing and placed in the lower end part with gap and with possibility of centering in it. |
