| 摘要 |
PURPOSE:To prevent the water chamber of the condenser from being subjected to an excessively heavy load due to an earthquake or the like by a method wherein in the steam turbine condenser provided with flexible joints between the trunk and the water chamber thereof, the water chamber is made movable in the longitudinal direction of a cooling pipe but is restrained to move in the direction normal to the cooling pipe. CONSTITUTION:The five quakeproof means 10 are attached to the trunk 1 of the condenser at positions adjacent the water chamber 4' with one end of each of the quake- proof means 10 held across each of the flexible joints 5. The quakeproof means 10 are so formed that they can move in the longitudinal direction of the cooling pipe 2 but are restrained to move normal to the cooling pipe 2. With the above structure, when the movable side of the water chamber 4' is subjected to the force of inertia in the direction normal to the cooling pipe 2, the counter-force is born upon by the quakeproof means 10 so that no excessive load is applied on the flexible joints 5, a pipe plate 3 and the cooling pipe 2 and the expansion and contraction of each of the flexible joints 5 due to the difference in expansion resulting from the variation of temperature during the operation of the condenser are not obstructed. Accordingly, it is possible to prevent the flexible joints 5, the pipe plate 3 and the cooling pipe 2 from being damaged. |
