Abstract A nuclear reactor assembly includes a reactor pressure tank having a substantially cylindrical side wall surrounded by the wall of a cylindrical cavity formed by a biological shield. A rotative cylindrical wall is interposed between the aforesaid walls and has means for rotating it from outside of the shield, and a probe is carried by the rotative wall for monitoring the pressure tank''s wall. The probe is vertically movable relative to the rotative cylindrical wall, so that by the probe''s vertical movement and rotation of the rotative cylinder, the reactor''s wall can be very extensively monitored. If the reactor pressure tank''s wall fails, it is contained by the rotative wall which is backed-up by the shield cavity wall.
A NUCLEAR REACTOR ASSEMBLY INCLUDING A REACTORY PRESSURE TANK HAVING A SUBSTANTIALLY CYLINDRICAL SIDE WALL AND A BIOLOGICAL SHIELD HAVING A CYLINDRICAL CAVITY FORMING A WALL SURROUNDING SAID SIDE WALL, WHEREIN THE IMPROVEMENT COMPRISES A ROTATIVE SUBSTANTIALLY CYLINDRICAL WALL INTERPOSED BETWEEN THE AFORESAID WALLS AND HAVING MEANS FOR ROTATING IT FROM OUTSIDE
Claim 2
Dependent Claim
52 words
A NUCLEAR REACTOR ASSEMBLY INCLUDING A REACTORY PRESSURE TANK HAVING A SUBSTANTIALLY CYLINDRICAL SIDE WALL AND A BIOLOGICAL SHIELD HAVING A CYLINDRICAL CAVITY FORMING A WALL SURROUNDING SAID SIDE WALL, WHEREIN THE IMPROVEMENT COMPRISES A ROTATIVE SUBSTANTIALLY CYLINDRICAL WALL INTERPOSED BETWEEN THE AFORESAID WALLS AND HAVING MEANS FOR ROTATING IT FROM OUTSIDE
Claim 3
Dependent Claim
32 words
The assembly of claim 1 in which said probe is vertically movable so that by its vertical movement and rotation of said rotative cylindrical wall said reactor''s wall can be extensively monitored.
Claim 4
Dependent Claim
41 words
The assembly of claim 2 in which said rotative wall is made of concrete and is formed with a vertical channel having a closed bottom but open to said reactor''s wall and in which is positioned a guideway for said probe.
Claim 5
Dependent Claim
29 words
The assembly of claim 3 in which the lower end of said rotative wall is supported on a circular track and rollers are interposed between said end and track.
Claim 6
Dependent Claim
16 words
The assembly of claim 4 in which said rotative wall is externally reinforced by metal cladding.
Claim 7
Dependent Claim
39 words
The assembly of claim 5 in which the exterior of said rotative wall is close to the wall of said shield''s cavity wall so as to be supported thereby against outward displacement in the event of outward radial displacement.
Claim 8
Dependent Claim
37 words
The assembly of claim 6 in which said rotative wall is rotated by a ring gear and pinion drive having the ring gear fixed to the rotative wall and having a drive shaft extending through said shield.