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Title: Control rod position indicator

Abstract

A rod position indication system includes a drive rod operably coupled to a control rod that is configured to be both withdrawn from and inserted into a reactor core. A number of sensing devices are arranged along a path of the drive rod, and an end of the drive rod passes by or through one or more of the sensing devices in response to movement of the control rod relative to the reactor core. The sensing devices are arranged into a plurality of groups, and each group includes two or more of the sensing devices electrically coupled together. The rod position indication system further includes a control rod monitoring device electrically coupled to each group of sensing devices by a routing wire.

Inventors:
Publication Date:
Research Org.:
NuScale Power, LLC, Corvallis, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1568245
Patent Number(s):
10,269,460
Application Number:
14/814,904
Assignee:
NuScale Power, LLC (Corvallis, OR)
DOE Contract Number:  
NE0000633
Resource Type:
Patent
Resource Relation:
Patent File Date: 07/31/2015
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; 22 GENERAL STUDIES OF NUCLEAR REACTORS

Citation Formats

Butchart, Paul. Control rod position indicator. United States: N. p., 2019. Web.
Butchart, Paul. Control rod position indicator. United States.
Butchart, Paul. Tue . "Control rod position indicator". United States. https://www.osti.gov/servlets/purl/1568245.
@article{osti_1568245,
title = {Control rod position indicator},
author = {Butchart, Paul},
abstractNote = {A rod position indication system includes a drive rod operably coupled to a control rod that is configured to be both withdrawn from and inserted into a reactor core. A number of sensing devices are arranged along a path of the drive rod, and an end of the drive rod passes by or through one or more of the sensing devices in response to movement of the control rod relative to the reactor core. The sensing devices are arranged into a plurality of groups, and each group includes two or more of the sensing devices electrically coupled together. The rod position indication system further includes a control rod monitoring device electrically coupled to each group of sensing devices by a routing wire.},
doi = {},
url = {https://www.osti.gov/biblio/1568245}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2019},
month = {4}
}

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Works referenced in this record:

Position indicating device
patent, December 1987


Integral helical coil pressurized water nuclear reactor
patent, March 2015


Control rod position indication systems and methods for nuclear power plants
patent, September 2014


Control rod drive mechanism for nuclear reactor
patent, August 2014