capacitor with unkondensierbaren gases mixed steam, designed for natural circulation in kernreaktorschutzsystemen

摘要

A condenser for steam mixed with non-condensable gases, for nuclear reactor protection systems, constituted by a heat-exchanger (10) with several modules (20) each formed by an upper manifold (100), a vertical array of pipes (110), and a lower manifold (120) is immersed in a pool (30) at atmospheric pressure outside a primary reactor container (60), and is connected directly to the interior of the primary container (60) by permanently-open steam-conduction and condensate-return lines (150,170). The necessary safety and reliability required of the system are ensured by the particular design of the exchanger with a modular structure, forging of the bodies which are under pressure, and aseismatic structural restrains (250,261) suitable for the thermal expansions which occur in operation. IMAGE