Pressure relief system for a nuclear reactor

摘要

A pressure relief and secondary containment system is described for containing an increase in pressure without leaking contaminants to the ambient atmosphere. A first containment enclosure is provided, which may be a building housing a nuclear reactor or a chemical processing system or the like which is capable of releasing contaminants in the event of an accident. A remote evacuated vessel or second containment enclosure is also provided. The first containment enclosure is relieved, in the event of an increase in pressure therein, to the second containment enclosure through a pressure regulating fluid seal. The fluid seal maintains a pressure differential between the first and the second containment enclosures during normal conditions.