VIBRATION CONTROL SUPPORT DEVICE OF NUCLEAR EQUIPMENT AND CONTROL SYSTEM FOR THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a vibration control support device of nuclear equipment and a control system for the same capable of: improving aseismic performance of an internal pump when an earthquake occurs; and curbing sympathetic vibration while the internal pump is operated at a rated speed.SOLUTION: A vibration control support device comprises: a hydraulic cylinder which supports an internal pump 13; a connection pipe 11 which connects two oil chambers 55 and 56 of the hydraulic cylinder; and an on-off valve 12 which is installed on the connection pipe 11 and switches between an open state allowing hydraulic oil 5 to flow to and from the two oil chambers 55 and 56 and a closed state completely shutting off a flow of the hydraulic oil 5. The open or closed state of the on-off valve is controlled on the basis of information on an earthquake.