Tube of the condensation of steam escaping for devices intended to limit the overpressure in the central nuclear, in particular in the central nuclear a boiling water

摘要

In a blow-off device for limiting excess pressure in nuclear power plants, a condensation tube disposed so that a lower outlet end thereof is immersed in a volume of water in a condensation chamber having a gas cushion located in a space above the volume of water, and an upper inlet end of the condensation tube extends out of the volume of water and is connectible to a source of steam that is to be condensed or a steam-air mixture, the outlet end of the condensation tube being further provided with a base member at the mouth of the outlet end for limiting steam flows discharging in axial direction of the tube, and being formed with lateral openings subdividing the steam flow and bubbles produced in the volume of water, the lateral outlet openings being formed of slots widening toward the end of the condensation tube, the slots being distributed over the periphery of the outlet end of the condensation tube.