| 摘要 |
1. Sealing device for a rotating plug (3) of a breeder reactor closed by a horizontal slab (1) incorporating a cylindrical opening (2) bounded by a passage flange (6), the said rotating plug (3) being held in the cylindrical opening (2) by a supporting component formed on the one hand by a sole (5) which rests on the passage flange (6) during the operation of the reactor and, on the other hand, by a cylindrical extension (7) on the upper part of which is mounted a ring (8) fixed solidly to the mechanism for driving and lifting the rotating plug (3), characterized in that the sole (5) and the cylindrical extension (7) of the component (4) supporting the rotating plug (3) form, with the ring (8), an annular space for the positioning of members (20) for static and dynamic sealing between the reactor head space and the exterior, the said sealing members (20) consisting of : a first set of seals (22) supported by a lower crown ring (21) which bears on the sole (5), a second set of seals (25-27) supported by an upper crown ring (24) underneath the ring (8), and a flexible membrane (28) connecting the crown rings (21-14) together. |
