Flow control device for heat exchanger - comprises diffuser structure within inlet nozzle of shell and associated baffle

摘要

Flow control device for providing a uniform and vortex-free inflow and distribution of feedwater to a steam generator having a tube bundle within a shell is arranged in the feedwater inlet nozzle and includes a diffuser structure with several diffuser channels. A baffle deflects feedwater flow in a radial direction about the nozzle and is arranged adjacent the nozzle downstream of the channels. Heat exchangers, such as feedwater preheaters, condensers and steam generators.