DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Control rod drive mechanism with heat pipe cooling

Abstract

A representative cooling system for a nuclear reactor control rod drive mechanism (CRDM) includes an evaporation section located within or next to the CRDM and a condensation section fluidly coupled to the evaporation section. The cooling system includes a set of heat fins coupled to drive coils in the CRDM and heat pipes that extend through the drive coils and heat fins. A fluid evaporates while in the evaporation section of the heat pipes from heat generated by the CRDM and moves out of the evaporation section into the condensation section in the heat fins. The fluid cools and condensates while in the condensation section, recirculating back into the evaporation section. This passive natural circulation cooling system reduces or eliminates the number of water hoses, piping, and other water pumping equipment typically used for cooling a CRDM thereby increasing nuclear reactor reliability and simplifying nuclear reactor operation and maintenance.

Inventors:
;
Issue Date:
Research Org.:
NuScale Power, LLC, Corvallis, OR (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1893010
Patent Number(s):
11355252
Application Number:
16/229,554
Assignee:
NuScale Power, LLC (Corvallis, OR)
Patent Classifications (CPCs):
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
H - ELECTRICITY H02 - GENERATION H02K - DYNAMO-ELECTRIC MACHINES
DOE Contract Number:  
NE0000633
Resource Type:
Patent
Resource Relation:
Patent File Date: 12/21/2018
Country of Publication:
United States
Language:
English

Citation Formats

Lobscheid, Christian, and Noel, Derek. Control rod drive mechanism with heat pipe cooling. United States: N. p., 2022. Web.
Lobscheid, Christian, & Noel, Derek. Control rod drive mechanism with heat pipe cooling. United States.
Lobscheid, Christian, and Noel, Derek. Tue . "Control rod drive mechanism with heat pipe cooling". United States. https://www.osti.gov/servlets/purl/1893010.
@article{osti_1893010,
title = {Control rod drive mechanism with heat pipe cooling},
author = {Lobscheid, Christian and Noel, Derek},
abstractNote = {A representative cooling system for a nuclear reactor control rod drive mechanism (CRDM) includes an evaporation section located within or next to the CRDM and a condensation section fluidly coupled to the evaporation section. The cooling system includes a set of heat fins coupled to drive coils in the CRDM and heat pipes that extend through the drive coils and heat fins. A fluid evaporates while in the evaporation section of the heat pipes from heat generated by the CRDM and moves out of the evaporation section into the condensation section in the heat fins. The fluid cools and condensates while in the condensation section, recirculating back into the evaporation section. This passive natural circulation cooling system reduces or eliminates the number of water hoses, piping, and other water pumping equipment typically used for cooling a CRDM thereby increasing nuclear reactor reliability and simplifying nuclear reactor operation and maintenance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jun 07 00:00:00 EDT 2022},
month = {Tue Jun 07 00:00:00 EDT 2022}
}

Works referenced in this record:

Nuclear reactor
patent, December 1987


Device for Controlling and Shutting-Down Pressurized-Water Nuclear Reactor
patent, May 1973


Structure of a heat pipe
patent, May 1990


Power Breeder Reactor
patent, November 1960


Tube Puller
patent, February 1933


Method and apparatus for preventing relative rotation of tube members in a control rod drive mechanism
patent, August 2001


Heat transport system
patent, October 1978


OCR Scanned Document
patent, May 1867


Heat Pipes
patent, September 1968


Steam Generator with Inclined Tube Sheet
patent-application, August 2016


Control Rod Drive Mechanism ("CRDM") Assembly for a Nuclear Reactor
patent-application, August 2013


Nuclear reactor
patent, July 1987


Moveable Isolated Rod Couplings for Use in a Nuclear Reactor Control Rod Drive
patent-application, January 2018


Integral heat pipe, heat exchanger, and clamping plate
patent, October 1993


Nuclear Control Rod Position Indication System
patent-application, July 2017


Well-Fishing Tool
patent, April 1926


Control Method and Apparatus
patent, May 1962


Reconstitutable rod cluster control assembly
patent, September 1997


Passive Cooling to Cold Shutdown
patent-application, April 2017


nuclear Reactor Control Assembly
patent, December 1971


Nuclear reactor
patent, April 2004


Boiling water reactor nuclear power plant and its construction method
patent, October 2004


Electric Fission Reactor for Space Applications
patent-application, January 2006


Automatic Hook
patent, July 1948


Nuclear Reactor Internal Electric Control Rod Drive Mechanism Assembly
patent-application, June 2012


System for supporting hollow cylinders
patent, November 1995


Reactivity control assembly for nuclear reactor
patent, November 1984


Lower reactor internals up-ending device
patent, July 2001


Systems and Methods for Mapping Sensor Feedback onto Virtual Representations of Detection Surfaces
patent-application, July 2016


Ball Detent Fastener with Cam Lever Actuating Means
patent, January 1961


Nuclear Reactor Control Device
patent, July 1971


Well Tool
patent, November 1939


Interlock assembly for burnable poison rod transfer device
patent, December 2001


Heat pipe
patent-application, April 2005


Automatic Coupling
patent, July 1959


Oyster-Opener
patent, November 1915


Pump
patent, August 1950


Mobile heat pipe cooled fast reactor system
patent-application, January 2016


Reactor Vessel Coolant Deflector Shield
patent-application, September 2013


Control rod for a nuclear reactor
patent, April 1979


Heat exchanger system and method
patent, December 1975