Published January 3, 1985 | Version v1
Patent Metadata-only

Boiling water reactor

Creators

Description

Circulation of the coolant in boiling water reactors in the annular space between the reactor core and the reactor pressure vessel is usually provided by a pump which is situated in a horizontal separating wall. There is at least one valve in the separating wall which closes an opening in parallel with flow through the pump, as long as the pump is working. The opening improves the natural circulation, in case the pump fails. (orig./HP)

Availability note (English)

Available from Deutsches Patentamt, Muenchen (Germany, F.R.).

Abstract (German)

Bei SWR ist ueblicherweise eine Kuehlmittelumwaelzung im Ringraum zwischen dem Reaktorkern und dem Reaktordruckbehaelter durch eine Pumpe vorgesehen, die in einer horizontalen Trennwand sitzt. In der Trennwand ist mindestens ein Ventil angeordnet, das eine zur Pumpe stroemungstechnisch parallel liegende Oeffnung verschliesst, solange die Pumpe arbeitet. Die Oeffnung verbessert den Naturumlauf fuer den Fall, dass die Pumpe ausfaellt. (orig./HP)

Additional details

Additional titles

Original title (German)
Siedewasserreaktor

Publishing Information

Imprint Pagination
9 p.
IPC:
Int. Cl. G21C 15/18.
IPC
Int. Cl. G21C 15/18.
Patent number
DE patent document 3323083/A/

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
17073620
Subject category
S21: SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS;
Resource subtype / Literary indicator
Non-conventional Literature
Descriptors DEI
BWR TYPE REACTORS; FAILURES; NATURAL CONVECTION; OPENINGS; PRIMARY COOLANT CIRCUITS; PUMPS; VALVES
Descriptors DEC
CONTROL EQUIPMENT; CONVECTION; COOLING SYSTEMS; ENERGY TRANSFER; ENRICHED URANIUM REACTORS; EQUIPMENT; FLOW REGULATORS; HEAT TRANSFER; POWER REACTORS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; REACTORS; THERMAL REACTORS; WATER COOLED REACTORS; WATER MODERATED REACTORS