Nuclear engineering plant and closure apparatus for its containment

US8126107B2 · kind B2 · utility

Assignee

• AREVA NP · FR

Inventors

• Bernd Eckardt · Bruchköbel, DE
• Norbert Losch · Offenbach, DE

Key dates

• Filing date: Sep 5, 2008
• Grant date: Feb 28, 2012
• Expiry date: Sep 5, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T137/1632
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A nuclear engineering plant has a containment, whose interior chamber is subdivided by a wall into a systems chamber and an operating chamber which is accessible during normal operation. The containment ensures a particularly high operational reliability, in particular also in incident situations, in which hydrogen is released in the systems chamber. For this purpose, a number of overflow openings are provided in the partition wall, the respective overflow opening is closed by a closure element of a closure apparatus which opens automatically when a trigger condition associated with the respective overflow opening is reached. Closure apparatuses are provided which open both as a function of pressure and independently of pressure. The closure apparatus furthermore has a closure element containing a bursting film or a bursting diaphragm. The closure apparatus is configured such that it frees the overflow opening automatically when a predetermined environment-side trigger temperature is reached.