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Title: Nuclear reactor pressure vessel support system

Abstract

A support system for nuclear reactor pressure vessels which can withstand all possible combinations of stresses caused by a postulated core disrupting accident during reactor operation. The nuclear reactor pressure vessel is provided with a flange around the upper periphery thereof, and the flange includes an annular vertical extension formed integral therewith. A support ring is positioned atop of the support ledge and the flange vertical extension, and is bolted to both members. The plug riser is secured to the flange vertical extension and to the top of a radially outwardly extension of the rotatable plug. This system eliminates one joint through which fluids contained in the vessel could escape by making the fluid flow path through the joint between the flange and the support ring follow the same path through which fluid could escape through the plug risers. In this manner, the sealing means to prohibit the escape of contained fluids through the plug risers can also prohibit the escape of contained fluid through the securing joint.

Inventors:
 [1]
  1. McMurray, PA
Issue Date:
OSTI Identifier:
863185
Patent Number(s):
4115193
Assignee:
United States of America as represented by United States (Washington, DC)
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
DOE Contract Number:  
E(11-1)-2395
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
nuclear; reactor; pressure; vessel; support; vessels; withstand; combinations; stresses; caused; postulated; core; disrupting; accident; operation; provided; flange; upper; periphery; annular; vertical; extension; formed; integral; therewith; positioned; atop; ledge; bolted; plug; riser; secured; top; radially; outwardly; rotatable; eliminates; joint; fluids; contained; escape; fluid; flow; path; follow; risers; manner; sealing; means; prohibit; securing; sealing means; reactor pressure; pressure vessel; nuclear reactor; fluid flow; flow path; radially outwardly; radially outward; pressure vessels; reactor operation; rotatable plug; positioned atop; vessel support; integral therewith; /376/976/

Citation Formats

Sepelak, George R. Nuclear reactor pressure vessel support system. United States: N. p., 1978. Web.
Sepelak, George R. Nuclear reactor pressure vessel support system. United States.
Sepelak, George R. Sun . "Nuclear reactor pressure vessel support system". United States. https://www.osti.gov/servlets/purl/863185.
@article{osti_863185,
title = {Nuclear reactor pressure vessel support system},
author = {Sepelak, George R},
abstractNote = {A support system for nuclear reactor pressure vessels which can withstand all possible combinations of stresses caused by a postulated core disrupting accident during reactor operation. The nuclear reactor pressure vessel is provided with a flange around the upper periphery thereof, and the flange includes an annular vertical extension formed integral therewith. A support ring is positioned atop of the support ledge and the flange vertical extension, and is bolted to both members. The plug riser is secured to the flange vertical extension and to the top of a radially outwardly extension of the rotatable plug. This system eliminates one joint through which fluids contained in the vessel could escape by making the fluid flow path through the joint between the flange and the support ring follow the same path through which fluid could escape through the plug risers. In this manner, the sealing means to prohibit the escape of contained fluids through the plug risers can also prohibit the escape of contained fluid through the securing joint.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1978},
month = {1}
}

Patent:

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