Method for operating a nuclear reactor

US4671925A · kind A · utility

Assignee

• Kraftwerk Union Aktiengesellschaft · DE

Inventors

• Horst Queiser · Maintal, DE
• Bernd Eckardt · Bruchköbel, DE

Key dates

• Filing date: Sep 24, 1984
• Grant date: Jun 9, 1987
• Expiry date: Sep 24, 2004

Classification

• Technology area (CPC G): Physics
• CPC primary: G21F9/02
• WIPO field: Engines, pumps, turbines
• WIPO sector: Mechanical engineering

Abstract

A method for operating a nuclear reactor having reactor coolant including an exhaust gas source and an exhaust gas system connected to the exhaust gas source, the exhaust gas system having at least one compressor connected to the exhaust gas source, a gas cooler connected to the compressor, a first reducing valve connected to the gas cooler, a switching valve connected to the first reducing valve, a moisture adsorber connected to the switching valve, a delay line normally connected in parallel with the moisture adsorber, a gas loop connected between the moisture adsorber and the compressor, a flue connection set at a given pressure during normal operation, and a second reducing valve connected between the delay line and the flue connection, includes interconnecting the delay line and the moisture adsorber in series, setting the flue connection to a pressure at least twice as high as the given pressure, reversing the switching valve thus allowing the exhaust gas to pass from the moisture adsorber to the delay line and then to the flue connection through the second reducing valve, upon the occurrence of a coolant displacement and increased exhaust gas production.