Heating equipment installation system

Patent · Tue Jan 01 00:00:00 EST 1991

OSTI ID:867939

Meuschke, Robert E ^[1]; Pomaibo, Paul P ^[2]

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1. Monroeville, PA
2. North Huntingdon, PA

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).

• DOE Contract Number: NPD843820AX
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 5040287
• OSTI ID: 867939
• Country of Publication: United States
• Language: English

Related Subjects

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
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