Reactor pressure vessel nozzle

Patent · Tue Oct 04 04:00:00 EDT 1994

OSTI ID:6834291

Challberg, R C; Upton, H A

A nozzle for joining a pool of water to a nuclear reactor pressure vessel includes a tubular body having a proximal end joinable to the pressure vessel and a distal end joinable in flow communication with the pool. The body includes a flow passage therethrough having in serial flow communication a first port at the distal end, a throat spaced axially from the first port, a conical channel extending axially from the throat, and a second port at the proximal end which is joinable in flow communication with the pressure vessel. The inner diameter of the flow passage decreases from the first port to the throat and then increases along the conical channel to the second port. In this way, the conical channel acts as a diverging channel or diffuser in the forward flow direction from the first port to the second port for recovering pressure due to the flow restriction provided by the throat. In the backflow direction from the second port to the first port, the conical channel is a converging channel and with the abrupt increase in flow area from the throat to the first port collectively increase resistance to flow therethrough. 2 figs.

• Research Organization: General Electric Co
• DOE Contract Number: AC03-90SF18494
• Assignee: General Electric Co., San Jose, CA (United States)
• Patent Number(s): US 5353320; A
• Application Number: PPN: US 8-043068
• OSTI ID: 6834291
• Country of Publication: United States
• Language: English

Related Subjects

22 GENERAL STUDIES OF NUCLEAR REACTORS
220200* -- Nuclear Reactor Technology-- Components & Accessories
CONTAINERS
DESIGN
FLOW RATE
FLUID FLOW
NOZZLES
PRESSURE VESSELS
REACTORS