Heat-retarding closure system for pressure relief openings of partitions, in nuclear reactor buildings

Patent · Tue Jan 22 00:00:00 EST 1985

OSTI ID:5919512

Fricker, W -P; Bauche, H; Gollasch, B; Scholz, M

Heat retarding closure system for partitions having pressure relief openings formed therein especially in nuclear reactor buildings where main coolant nozzles of a reactor pressure vessel penetrate a biological shield, including lightweight construction closure elements having a side facing the reactor and anchors for holding the closure elements, the closure elements being pushable out of the anchors by an overpressure in a given pressure difference direction on the reactor side, and an outer sealing blowout skin, the closure elements being in the form of heat-retarding cassette inserts having a front surface with a peripheral shearing edge formed thereon resting against the blowout skin, and the blowout skin having a given thickness in the given pressure difference direction enabling the cassette insert to shear off the blowout skin and be pushed out of the anchors when a given pressure difference is at least reached.

• Assignee: Kraftwerk Union Aktiengesellschaft (Germany, Federal Republic Of) Grunzweig and Hartmann Montage GmbH (Germany, Federal Republic Of)
• Patent Number(s): US 4495147
• Application Number: TRN: 85-011458
• OSTI ID: 5919512
• Resource Relation: Patent Priority Date: Priority date 22 Jan 1981, Germany, Federal Republic of (F.R. Germany); Other Information: PAT-APPL-227507
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
PRESSURE VESSELS
BIOLOGICAL SHIELDS
CLOSURES
NOZZLES
VALVES
HEAT RESISTING ALLOYS
POWER REACTORS
PRESSURE CONTROL
PRESSURE GRADIENTS
REACTOR COOLING SYSTEMS
ALLOYS
CONTAINERS
CONTROL
CONTROL EQUIPMENT
COOLING SYSTEMS
ENERGY SYSTEMS
EQUIPMENT
FLOW REGULATORS
HEAT RESISTANT MATERIALS
MATERIALS
REACTOR COMPONENTS
REACTORS
SHIELDS
220200* - Nuclear Reactor Technology- Components & Accessories