Nuclear plant with a containment shell and with a pressure relief system

US10304574B2 · kind B2 · utility

Assignee

• FRAMATOME · FR

Inventors

• Sebastian Buhlmann · Heusenstamm, DE
• Bernd Eckardt · Bruchköbel, DE
• Norbert Losch · Offenbach, DE

Key dates

• Filing date: Jan 9, 2015
• Grant date: May 28, 2019
• Expiry date: Mar 7, 2038

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E30/30
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A nuclear plant has a containment shell and a pressure relief line passing out of the containment shell and sealed by a shut-off valve, and through which a pressure relief flow can flow during relief operation, such that it is configured for particularly reliable management of critical scenarios where there is a considerable pressure increase within the containment shell at the same time as the release of hydrogen and/or carbon monoxide. A gas flow treatment device is provided upstream from the respective pressure relief line, and contains a flow duct and has a lower inflow opening and an upper inflow/outflow opening. Catalytic elements for eliminating hydrogen and/or carbon monoxide are arranged in the flow duct above the lower inflow opening. During a critical fault, the flow duct is flowed through from bottom to top by a gas mixture present in the containment shell by the principle of natural convection.