Water-cooled nuclear reactor

Patent · Tue Jul 07 00:00:00 EDT 1981

OSTI ID:5977736

Braun, W; Irion, L

A water-cooled nuclear reactor pressure vessel is internally provided with a check valve assembly for the inner end of a coolant inlet nozzle to prevent immediate loss of the coolant from the vessel by backward flow in the event the pressure of the coolant supply through the nozzle, drops below the pressure inside the vessel while the reactor is operating. The valve assembly includes a plurality of flap valves working in parallel so that if one fails to close when required, the balance of the flap valves remain operative to check the discharge of the coolant.

• Assignee: Kraftwerk Union Ag (Germany, Federal Republic of)
• Patent Number(s): US 4277310
• OSTI ID: 5977736
• Resource Relation: Patent Priority Date: Priority date 20 May 1974, German, Federal Republic of (F.R. Germany)
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
BWR TYPE REACTORS
REACTOR COOLING SYSTEMS
PWR TYPE REACTORS
VALVES
NOZZLES
REACTOR PROTECTION SYSTEMS
REACTORS
CONTROL EQUIPMENT
COOLING SYSTEMS
ENERGY SYSTEMS
EQUIPMENT
FLOW REGULATORS
REACTOR COMPONENTS
WATER COOLED REACTORS
WATER MODERATED REACTORS
210100* - Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200 - Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled