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Title: Heating equipment installation system

Abstract

A method for installing a heater unit assembly (52, 54) in a reactor pressure vessel (2) for performance of an annealing treatment on the vessel (2), the vessel (2) having a vertical axis, being open at the top, being provided at the top with a flange (6) having a horizontal surface, and being provided internally, at a location below the flange (6), with orientation elements (8) which are asymmetrical with respect to the vertical axis, by the steps of: providing an orientation fixture (10) having an upwardly extending guide member (18) and orientation elements (14, 16) and installing the orientation fixture (10) in the vessel (2) so that the orientation elements (14,16) of the orientation fixture (10) mate with the orientation elements (8) of the pressure vessel (2) in order to establish a defined position of the orientation fixture (10) in the pressure vessel (2), and so that the guide member (18) projects above the pressure vessel (2) flange (6); placing a seal ring (30) in a defined position on the pressure vessel (2) flange (6) with the aid of the guide member (18); mounting at least one vertical, upwardly extending guide stud (40) upon the seal ring (30); withdrawingmore » the orientation fixture (10) from the pressure vessel (2); and moving the heater unit assembly (52,54) vertically downwardly into the pressure vessel (2) while guiding the heater unit assembly (52,54) along a path with the aid of the guide stud (40).« less

Inventors:
 [1];  [2]
  1. Monroeville, PA
  2. North Huntingdon, PA
Publication Date:
OSTI Identifier:
867939
Patent Number(s):
US 5040287
Assignee:
United States of America as represented by United States (Washington, DC)
DOE Contract Number:  
NPD843820AX
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
heating; equipment; installation; method; installing; heater; unit; assembly; 52; 54; reactor; pressure; vessel; performance; annealing; treatment; vertical; axis; top; provided; flange; horizontal; surface; internally; location; below; orientation; elements; asymmetrical; respect; steps; providing; fixture; 10; upwardly; extending; guide; 18; 14; 16; mate; establish; defined; position; projects; placing; seal; 30; mounting; stud; 40; withdrawing; moving; vertically; downwardly; guiding; path; upwardly extending; heater unit; unit assembly; location below; vertical axis; reactor pressure; pressure vessel; horizontal surface; annealing treatment; /29/376/

Citation Formats

Meuschke, Robert E, and Pomaibo, Paul P. Heating equipment installation system. United States: N. p., 1991. Web.
Meuschke, Robert E, & Pomaibo, Paul P. Heating equipment installation system. United States.
Meuschke, Robert E, and Pomaibo, Paul P. 1991. "Heating equipment installation system". United States. https://www.osti.gov/servlets/purl/867939.
@article{osti_867939,
title = {Heating equipment installation system},
author = {Meuschke, Robert E and Pomaibo, Paul P},
abstractNote = {A method for installing a heater unit assembly (52, 54) in a reactor pressure vessel (2) for performance of an annealing treatment on the vessel (2), the vessel (2) having a vertical axis, being open at the top, being provided at the top with a flange (6) having a horizontal surface, and being provided internally, at a location below the flange (6), with orientation elements (8) which are asymmetrical with respect to the vertical axis, by the steps of: providing an orientation fixture (10) having an upwardly extending guide member (18) and orientation elements (14, 16) and installing the orientation fixture (10) in the vessel (2) so that the orientation elements (14,16) of the orientation fixture (10) mate with the orientation elements (8) of the pressure vessel (2) in order to establish a defined position of the orientation fixture (10) in the pressure vessel (2), and so that the guide member (18) projects above the pressure vessel (2) flange (6); placing a seal ring (30) in a defined position on the pressure vessel (2) flange (6) with the aid of the guide member (18); mounting at least one vertical, upwardly extending guide stud (40) upon the seal ring (30); withdrawing the orientation fixture (10) from the pressure vessel (2); and moving the heater unit assembly (52,54) vertically downwardly into the pressure vessel (2) while guiding the heater unit assembly (52,54) along a path with the aid of the guide stud (40).},
doi = {},
url = {https://www.osti.gov/biblio/867939}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}