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Title: Nozzle dam having a unitary plug

Abstract

Apparatus for sealing the primary-side coolant flow nozzles of a nuclear steam generator is disclosed. The steam generator has relatively small diameter manway openings for providing access to the interior of the steam generator including the inside surface of each nozzle, the manway openings having a diameter substantially less than the inside diameter of each nozzle. The apparatus includes a bracket having an outside surface for matingly sealingly engaging the inside surface of the nozzle. The bracket also has a plurality of openings longitudinally therethrough and a plurality of slots transversely therein in communication with each opening. A plurality of unitary plugs sized to pass through the manway opening are matingly sealingly disposed in each opening of the bracket for sealingly plugging each opening. Each plug includes a plurality of arms operable to engage the slots of the bracket for connecting each plug to the bracket, so that the nozzle is sealed as the plugs seal the openings and are connected to the bracket. 16 figs.

Inventors:
;
Issue Date:
Research Org.:
Westinghouse Electric Corp
OSTI Identifier:
7048503
Patent Number(s):
5171514 A
Application Number:
PPN: US 7-650135
Assignee:
Westinghouse Electric Corp., Pittsburgh, PA (United States) OAK; EDB-94-087657
DOE Contract Number:  
AC03-86SF16038
Resource Type:
Patent
Resource Relation:
Patent File Date: 1 Feb 1991
Country of Publication:
United States
Language:
English
Subject:
22 GENERAL STUDIES OF NUCLEAR REACTORS; NOZZLES; CLOSURES; NUCLEAR POWER PLANTS; STEAM GENERATORS; FASTENERS; PRIMARY COOLANT CIRCUITS; SEALS; BOILERS; COOLING SYSTEMS; ENERGY SYSTEMS; NUCLEAR FACILITIES; POWER PLANTS; REACTOR COMPONENTS; REACTOR COOLING SYSTEMS; THERMAL POWER PLANTS; VAPOR GENERATORS; 220200* - Nuclear Reactor Technology- Components & Accessories

Citation Formats

Veronesi, L., and Wepfer, R.M. Nozzle dam having a unitary plug. United States: N. p., 1992. Web.
Veronesi, L., & Wepfer, R.M. Nozzle dam having a unitary plug. United States.
Veronesi, L., and Wepfer, R.M. Tue . "Nozzle dam having a unitary plug". United States.
@article{osti_7048503,
title = {Nozzle dam having a unitary plug},
author = {Veronesi, L. and Wepfer, R.M.},
abstractNote = {Apparatus for sealing the primary-side coolant flow nozzles of a nuclear steam generator is disclosed. The steam generator has relatively small diameter manway openings for providing access to the interior of the steam generator including the inside surface of each nozzle, the manway openings having a diameter substantially less than the inside diameter of each nozzle. The apparatus includes a bracket having an outside surface for matingly sealingly engaging the inside surface of the nozzle. The bracket also has a plurality of openings longitudinally therethrough and a plurality of slots transversely therein in communication with each opening. A plurality of unitary plugs sized to pass through the manway opening are matingly sealingly disposed in each opening of the bracket for sealingly plugging each opening. Each plug includes a plurality of arms operable to engage the slots of the bracket for connecting each plug to the bracket, so that the nozzle is sealed as the plugs seal the openings and are connected to the bracket. 16 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1992},
month = {12}
}