Steam-assisted jet pump

Patent · Tue Jul 11 04:00:00 EDT 1989

OSTI ID:5490259

Gluntz, D M

This patent describes a nuclear reactor having forced circulation jet pumps for causing pumped flow of reactor water coolant through the core of the reactor in forced circulation. The reactor further includes a steam outlet for providing steam to a power source and a feedwater inlet communicated from a feedwater system for replacing the outflowing steam with a corresponding supply of water coolant for generation into steam, the improvement to the jet pumps comprising: a jet pump having an inlet, a mixer section and a diffuser section the inlet and the diffuser communicated to water coolant to be force circulated within the reactor; a nozzle communicated to the mixer for entraining water coolant into the inlet and transferring momentum to the water coolant in the mixer for discharge of pumped water coolant in forced circulation through the core of the reactor, the nozzle including a first water jet communicated from the feedwater inlet of the nuclear reactor for receiving the feedwater at a temperature below the saturation temperature of the reactor and discharging water in an accelerated fluid stream; pump means communicated to the feedwater inlet for intake from the feedwater system and discharge through the nozzle for introducing feedwater into the reactor. The nozzle further includes a second stream jet communicated from the saturated steam outlet of the reactor.

• Assignee: General Electric Co., San Jose, CA
• Patent Number(s): US 4847043
• OSTI ID: 5490259
• Country of Publication: United States
• Language: English

Related Subjects

21 SPECIFIC NUCLEAR REACTORS AND ASSOCIATED PLANTS
210100* -- Power Reactors
Nonbreeding
Light-Water Moderated
Boiling Water Cooled
210200 -- Power Reactors
Nonbreeding
Light-Water Moderated
Nonboiling Water Cooled
COOLING SYSTEMS
ENERGY SYSTEMS
FEEDWATER
FLUID MECHANICS
HYDRAULICS
HYDROGEN COMPOUNDS
JETS
MECHANICS
OXYGEN COMPOUNDS
PUMPING
PUMPS
REACTOR COMPONENTS
REACTOR COOLING SYSTEMS
REACTORS
WATER
WATER COOLED REACTORS