SETT OCH INFORANDE AV SEKUNDERVATTEN GENOM ETT INLOPP TILL ETT ANGGENERATORKERL

摘要

A flow control device for providing a substantially uniform and vortex-free inflow and distribution of feedwater to a steam generator having a tube bundle for a primary fluid disposed in a shell provided in the feedwater inlet nozzle including a diffuser structure, with a number of diffuser channels adapted to restrict outflow of water from the generator shell during a break in a feedwater pipe connected to the inlet nozzle and baffle means associated with said diffuser structure to deflect the feedwater flow in a radial direction about the inlet nozzle, the baffle means being arranged closely adjacent the inlet nozzle between the downstream ends of the diffuser channels and the tube bundle enclosed by the shell.