JPS57148189A - Condenser for steam turbine - Google Patents

Abstract

PURPOSE:To prevent abrasion and damage of any of a group of heat transfer pipes by vibration proof plates adopted to prevent the vibrations of any of the heat transfer pipes liable to be damaged are fixed to the trunk portion of the condenser. CONSTITUTION:The vibration proof plates 1 each having a configuration internally void are fixed to the trunk portion of the condenser 100 at positions among a plurality of pipe support plates 20 for supporting the group of heat transfer pipes 21. In this case, the vibration proof plates 1 are so arranged that they support only several rows of the pipes 10a from the outer periphery of the pipe group 21. More particularly, each of the vibration proof plates 1 is made internally void so that is supports only five to six rows of the pipes 10a from the outer periphery of the group of the pipes 10 with the above rows of the pipes passing through the void section of the plate 1. Further, the vibration proof plates 1 are arranged at positions where those pipes which are paticularly liable to be abrased and damaged due to vibrations are located. Consequently, the abdrasions and damages of the heat transfer pipes can be prevented and the safety operation of a turbine plant can be secured.