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Title: Bolt installation and tensioning system

Abstract

A bolt installation and removal (BIR) system is used for assembling and disassembling a nuclear vessel. The BIR system includes a platform with a stand for supporting the nuclear vessel. A track extends around an outside perimeter of the platform and multiple tool carts include wheels that roll on the track. Tool towers are located on the carts and include tool assemblies configured to install and remove bolts on the nuclear reactor vessel. Magazine towers also extend up from the tool carts next to the tool towers and include magazines that hold bolts for exchanging with the tool assemblies. Drive mechanisms move tool heads in the tool assemblies around a first vertical axis, vertically up and down, and laterally to more simply and reliably install and remove the bolts in a radioactive underwater environment.

Inventors:
;
Issue Date:
Research Org.:
NuScale Power, LLC, Corvallis, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1823998
Patent Number(s):
11017909
Application Number:
15/841,056
Assignee:
NuScale Power, LLC (Corvallis, OR)
Patent Classifications (CPCs):
B - PERFORMING OPERATIONS B23 - MACHINE TOOLS B23P - OTHER WORKING OF METAL
B - PERFORMING OPERATIONS B25 - HAND TOOLS B25B - TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
DOE Contract Number:  
NE0000633
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/13/2017
Country of Publication:
United States
Language:
English

Citation Formats

Shaw, Steven W., and Noel, Derek. Bolt installation and tensioning system. United States: N. p., 2021. Web.
Shaw, Steven W., & Noel, Derek. Bolt installation and tensioning system. United States.
Shaw, Steven W., and Noel, Derek. Tue . "Bolt installation and tensioning system". United States. https://www.osti.gov/servlets/purl/1823998.
@article{osti_1823998,
title = {Bolt installation and tensioning system},
author = {Shaw, Steven W. and Noel, Derek},
abstractNote = {A bolt installation and removal (BIR) system is used for assembling and disassembling a nuclear vessel. The BIR system includes a platform with a stand for supporting the nuclear vessel. A track extends around an outside perimeter of the platform and multiple tool carts include wheels that roll on the track. Tool towers are located on the carts and include tool assemblies configured to install and remove bolts on the nuclear reactor vessel. Magazine towers also extend up from the tool carts next to the tool towers and include magazines that hold bolts for exchanging with the tool assemblies. Drive mechanisms move tool heads in the tool assemblies around a first vertical axis, vertically up and down, and laterally to more simply and reliably install and remove the bolts in a radioactive underwater environment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2021},
month = {5}
}

Works referenced in this record:

Apparatus for servicing a reactor such as tensioning reactor vessel head studs
patent, March 1998


Bolt Tensioner
patent-application, August 2013


Apparatus and method for loosening a stuck reactor vessel stud
patent, December 1997


Modular submersible repairing system
patent, April 2004


Inspection, maintenance, and repair apparatuses and methods for nuclear reactors
patent-application, December 2008


Fastening and loosening device
patent, October 2016


Remote repair system for nuclear fuel rod assemblies
patent, December 1987


Vessel lid mounting and demounting apparatus
patent, October 1989