Kraftwerk Union Aktiengesellschaft

Ulrich Simon

Bernd Pontani

Klaus-Dieter Werner

Dieter Hoffmann

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 tube, for stabilizing the condensation, being provided with a base member at the mouth of the tube for limiting steam flows discharging in axial direction of the tube and being formed with lateral outlet openings for subdividing the steam flow and the bubbles produced in the volume of water, the base member at the tube mouth being formed at a conical insert member having a base fastened to the condensation tube in vicinity of the mouth thereof and having an apex extending into the tube mouth, the lateral outlet openings being disposed at least within the axial range of the insert member.

Condensation tube for a blow-off device for limiting excess pressure in

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.

In a blow-off device for limiting excess pressure in nuclear power plants, at least one condensation tube disposed so that a lower outflow 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 inflow 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 outflow end of the condensation tube, for stabilizing the condensation being provided with an assembly of wall parts forming passageways extending in axial direction for subdividing the steam flow and bubbles produced in the volume of water, the passageways of the assembly of wall parts being stepped in axial direction at both axial ends of the assembly of wall parts.

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Frankfurt-am-Main, Germany

Ulrich Simon