Vibration Reduction Device for Main Exhaust Duct of Nuclear Power Plant

摘要

The present invention relates to a vibration reducing device of the main exhaust duct of a nuclear power plant, for this purpose, the present invention is coupled to one side cross-section of the vertical and the same height of the mutually facing surfaces of the reactor 100 and exhaust tower 200, respectively, A plurality of rollers 14 are provided on the horizontal upper surface, and a pair of alternating portions 10 which form an anti-separation latching jaw 130 to be formed higher than the height of the main surface of the roller 14 on both side ends of the upper surface. )Wow; Lower ends of the side surfaces 21 on both sides are mounted on the rollers 14 of the upper surface over the alternating sides 10 of the reactor 100 and the exhaust tower 200, and accommodates the main exhaust duct 300 in the longitudinal direction. A bridge-shaped support 20 for forming a guide groove 22 to allow the roller 23 to be provided at a predetermined interval on the bottom surface of the guide groove 22; A plurality of coil springs 31 are formed therein while penetrating at regular intervals, and have wrinkles in the width direction to have elasticity, and the coil springs 31 protrude from upper ends of the side surfaces 21 of the support 20. A plurality of expansion support (30) to support the bottom of the main exhaust duct 300 at regular intervals so that the end is connected to buffer the movement shock in the longitudinal direction and the width direction of the main exhaust duct 300 It is characterized in that the main exhaust duct 300 can be safely maintained by absorbing and cushioning the shock in the horizontal length and the width direction together with the vertical direction even in the severe vibration such as an earthquake. .