BWR parallel flow recirculation system

Patent · Tue Jan 21 04:00:00 EST 1992

OSTI ID:5405251

Fennern, L E

This patent describes a recirculation system for a boiling water reactor having a cylindrical shroud surrounding a reactor core and spaced radially inwardly from a pressure vessel to define an annular downcomer for channeling downwardly a recirculation reactor coolant into an inlet of the core disposed at a lower plenum of the vessel. It comprises an annular pump deck disposed in the downcomer and fixedly joined to the pressure vessel and the core shroud circumferentially spaced impeller-driven reactor internal pumps (RIPs) disposed in the downcomer and joined to the pump deck for pumping a first portion of the coolant in the downcomer downwardly through the pump deck and into the lower plenum as RIP discharge flow to the core inlet; and circumferentially spaced fluid-driven jet pumps (JPs) disposed in the downcomer and joined to the pump deck for pumping a second portion of the coolant in the downcomer downwardly through the pump deck and into the lower plenum as JP discharge flow to the core inlet in parallel flow with the RIP discharge flow.

• Assignee: General Electric Co., San Jose, CA (United States)
• Patent Number(s): US 5082620; A
• Application Number: PPN: US 7-699428
• OSTI ID: 5405251
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
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Light-Water Moderated
Boiling Water Cooled
ANNULAR SPACE
BWR TYPE REACTORS
CONFIGURATION
CONTAINERS
COOLANTS
COOLING SYSTEMS
CYLINDERS
ENRICHED URANIUM REACTORS
FLUIDS
JETS
POWER REACTORS
PRESSURE VESSELS
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REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTOR CORES
REACTORS
SHROUDS
SPACE
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