| 摘要 |
The present invention relates to a device for preventing the vibration of a nuclear reactor by preventing the thermal deformation of a sliding base that supports a steam generator of the nuclear reactor, and provides an external air intake plate device below the steam generator of the nuclear reactor, which comprises: a shim plate that is disposed along the coupling surface between the lower surface of a skirt support of the steam generator and the upper surface of the sliding base and has a plurality of anchor holes formed therein through which stud anchors pass; and a plurality of vent notches radially formed on the upper surface of the shim plate and concavely formed at an equal interval in the circumferential direction of the shim plate, wherein the thermal deformation of the sliding base is prevented by performing natural cooling by introducing air outside the skirt support into the stagnated air area inside the sliding base and the skirt support through the plurality of vent notches. |
