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Title: Reactor pressure vessel nozzle

Abstract

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.

Inventors:
 [1];  [2]
  1. (Livermore, CA)
  2. (Morgan Hill, CA)
Issue Date:
Research Org.:
General Electric Co
OSTI Identifier:
869536
Patent Number(s):
5353320
Assignee:
General Electric Company (San Jose, CA) OAK
DOE Contract Number:  
AC03-90SF18494
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
reactor; pressure; vessel; nozzle; joining; pool; water; nuclear; tubular; proximal; joinable; distal; flow; communication; passage; therethrough; serial; throat; spaced; axially; conical; channel; extending; inner; diameter; decreases; increases; diverging; diffuser; forward; direction; recovering; due; restriction; provided; backflow; converging; abrupt; increase; collectively; resistance; pressure due; passage therethrough; extending axially; inner diameter; flow passage; flow direction; reactor pressure; pressure vessel; nuclear reactor; flow communication; flow therethrough; flow restriction; channel extending; spaced axial; /376/

Citation Formats

Challberg, Roy C., and Upton, Hubert A. Reactor pressure vessel nozzle. United States: N. p., 1994. Web.
Challberg, Roy C., & Upton, Hubert A. Reactor pressure vessel nozzle. United States.
Challberg, Roy C., and Upton, Hubert A. Sat . "Reactor pressure vessel nozzle". United States. https://www.osti.gov/servlets/purl/869536.
@article{osti_869536,
title = {Reactor pressure vessel nozzle},
author = {Challberg, Roy C. and Upton, Hubert A.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1994},
month = {1}
}

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